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Journal articles on the topic 'Custom cost functions'

Author: Grafiati
Published: 23 June 2021
Last updated: 11 February 2022

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1

Sadler, Grace, and Sina Shahab. "Self-Build and Custom Housebuilding Registers in England: A Transaction-Cost and Effectiveness Analysis." Sustainability 13, no. 9 (April 27, 2021): 4912. http://dx.doi.org/10.3390/su13094912.

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The development of the self and custom housebuilding sector can work towards increasing the supply of housing and alleviate some of the strain on the housing market in England. Although it is not a solution for everyone, improving self and custom housebuilding can add diversity to the market, increase housing affordability, and produce sustainable homes. This has been recognised by the UK Government, which has introduced legislation which aims to assist self and custom builders on the journey to building their own home. The goals of the legislation are to ensure every local authority in England keeps a register of individuals who want to build their own home, to consider this register when carrying out other planning functions, and to grant sufficient planning permissions for those on the register. This paper evaluates the ‘self-build and custom housebuilding registers’ from the perspective of transaction costs and perceived effectiveness. This is achieved through semi-structured interviews with local authority planners, private-sector planners, property developers, and national bodies. The findings of this study identify that the primary transaction costs occur in the eligibility tests stage of the register application and relate to the uncertainty felt by applicants post application. The paper concludes that these could be rectified by implementing a more consistent and fair system. The perceived effectiveness of the register varies considerably. The paper determines that the policy requires significant change in order to meet the goals it set out to achieve, which includes model Supplementary Planning Guidance documents and a robust support system for applicants.
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Fernandez-Vicente, Miguel, Ana Escario Chust, and Andres Conejero. "Low cost digital fabrication approach for thumb orthoses." Rapid Prototyping Journal 23, no. 6 (October 17, 2017): 1020–31. http://dx.doi.org/10.1108/rpj-12-2015-0187.

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Purpose The purpose of this paper is to describe a novel design workflow for the digital fabrication of custom-made orthoses (CMIO). It is intended to provide an easier process for clinical practitioners and orthotic technicians alike. It further functions to reduce the dependency of the operators’ abilities and skills. Design/methodology/approach The technical assessment covers low-cost three-dimensional (3D) scanning, free computer-aided design (CAD) software, and desktop 3D printing and acetone vapour finishing. To analyse its viability, a cost comparison was carried out between the proposed workflow and the traditional CMIO manufacture method. Findings The results show that the proposed workflow is a technically feasible and cost-effective solution to improve upon the traditional process of design and manufacture of custom-made static trapeziometacarpal (TMC) orthoses. Further studies are needed for ensuring a clinically feasible approach and for estimating the efficacy of the method for the recovery process in patients. Social implications The feasibility of the process increases the impact of the study, as the great accessibility to this type of 3D printers makes the digital fabrication method easier to be adopted by operators. Originality/value Although some research has been conducted on digital fabrication of CMIO, few studies have investigated the use of desktop 3D printing in any systematic way. This study provides a first step in the exploration of a new design workflow using low-cost digital fabrication tools combined with non-manual finishing.
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Moreno, Ciro, Alejandro González, José Luis Olazagoitia, and Jordi Vinolas. "The Acquisition Rate and Soundness of a Low-Cost Data Acquisition System (LC-DAQ) for High Frequency Applications." Sensors 20, no. 2 (January 17, 2020): 524. http://dx.doi.org/10.3390/s20020524.

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This article presents a novel and reliable low-cost data acquisition solution for high frequency and real-time applications in vehicular dynamics. Data acquisition systems for highly dynamic systems based on low-cost platforms face different challenges such as a constrained data retrieval rate. Basic data reading functions in these platforms are inefficient and, when used, they limit electronics acquisition rate capabilities. This paper explains a new low-cost, modular and open platform to read different types of sensors at high speed rates. Conventional reading functions are avoided to speed up acquisition rate, but this negatively affects data reliability of the system. To solve this and exploit higher data managing rates, a number of custom secure layers are implemented to secure a reliable acquisition. This paper describes the new low-cost electronics developed for high rate acquisition applications and inspects its performance and robustness against the introduction of an increasing number of sensors connected to the board. In most cases, acquisition rates of the system are duplicated using this new solution.
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Fine, Jonathan, and Gaurav Chopra. "Lemon: a framework for rapidly mining structural information from the Protein Data Bank." Bioinformatics 35, no. 20 (March 14, 2019): 4165–67. http://dx.doi.org/10.1093/bioinformatics/btz178.

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Abstract Motivation The Protein Data Bank (PDB) currently holds over 140 000 biomolecular structures and continues to release new structures on a weekly basis. The PDB is an essential resource to the structural bioinformatics community to develop software that mine, use, categorize and analyze such data. New computational biology methods are evaluated using custom benchmarking sets derived as subsets of 3D experimentally determined structures and structural features from the PDB. Currently, such benchmarking features are manually curated with custom scripts in a non-standardized manner that results in slow distribution and updates with new experimental structures. Finally, there is a scarcity of standardized tools to rapidly query 3D descriptors of the entire PDB. Results Our solution is the Lemon framework, a C++11 library with Python bindings, which provides a consistent workflow methodology for selecting biomolecular interactions based on user criterion and computing desired 3D structural features. This framework can parse and characterize the entire PDB in <10 min on modern, multithreaded hardware. The speed in parsing is obtained by using the recently developed MacroMolecule Transmission Format to reduce the computational cost of reading text-based PDB files. The use of C++ lambda functions and Python bindings provide extensive flexibility for analysis and categorization of the PDB by allowing the user to write custom functions to suite their objective. We think Lemon will become a one-stop-shop to quickly mine the entire PDB to generate desired structural biology features. Availability and implementation The Lemon software is available as a C++ header library along with a PyPI package and example functions at https://github.com/chopralab/lemon. Supplementary information Supplementary data are available at Bioinformatics online.
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Nawaz Shah, Haq. "An Analysis of Economies of Scope in Irrigated Agriculture in the Punjab (Pakistan)." LAHORE JOURNAL OF ECONOMICS 7, no. 2 (July 1, 2002): 1–14. http://dx.doi.org/10.35536/lje.2002.v7.i2.a1.

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In this paper scope economies for a sample of 387 farms in the Punjab province of Pakistan were estimated using nonparametric techniques and sources of economies of scope were determined by using econometric techniques. The result indicated that diversified farming in crop, livestock and custom hiring enterprises results in cost savings of 17.81% for all enterprises, 17.36% in the crop sector, 15.84% in the livestock sector and 1.90% for custom hiring. Econometric results indicate that overall economies of scope are inversely related to farm size, positively to location of farms nearer to the head reaches of canals and positively to the amount of capital used on a farm. The existence of Scope economies in Pakistan agriculture implies that production functions in agriculture are interdependent and the effects of Government policy of setting support prices of individual crops may affect resource allocation with respect to other crops on the same farms.
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Sahinoğlu, Dilek, Gürsoy Coskun, and Nilgün Bek. "Effects of different seating equipment on postural control and upper extremity function in children with cerebral palsy." Prosthetics and Orthotics International 41, no. 1 (July 9, 2016): 85–94. http://dx.doi.org/10.1177/0309364616637490.

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Background:Adaptive seating supports for cerebral palsy are recommended to develop and maintain optimum posture, and functional use of upper extremities.Objectives:To compare the effectiveness of different seating adaptations regarding postural alignment and related functions and to investigate the effects of these seating adaptations on different motor levels.Study design:Prospective study.Methods:A total of 20 children with spastic cerebral palsy (Gross Motor Function Classification System 3–5) were included. Postural control and function (Seated Postural Control Measure, Sitting Assessment Scale) were measured in three different systems: standard chair, adjustable seating system and custom-made orthosis.Results:In results of all participants ungrouped, there was a significant difference in most parameters of both measurement tools in favor of custom-made orthosis and adjustable seating system when compared to standard chair ( p < 0.0017). There was a difference among interventions in most of the Seated Postural Control Measure results in Level 4 when subjects were grouped according to Gross Motor Function Classification System levels. A difference was observed between standard chair and adjustable seating system in foot control, arm control, and total Sitting Assessment Scale scores; and between standard chair and custom-made orthosis in trunk control, arm control, and total Sitting Assessment Scale score in Level 4. There was no difference in adjustable seating system and custom-made orthosis in Sitting Assessment Scale in this group of children ( p < 0.017).Conclusion:Although custom-made orthosis fabrication is time consuming, it is still recommended since it is custom made, easy to use, and low-cost. On the other hand, the adjustable seating system can be modified according to a patient’s height and weight.Clinical relevanceIt was found that Gross Motor Function Classification System Level 4 children benefitted most from the seating support systems. It was presented that standard chair is sufficient in providing postural alignment. Both custom-made orthosis and adjustable seating system have pros and cons and the best solution for each will be dependent on a number of factors.
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Summerfelt, Steven T., Kyle H. Holland, Joseph A. Hankins, and Martin D. Durant. "A hydroacoustic waste feed controller for tank systems." Water Science and Technology 31, no. 10 (May 1, 1995): 123–29. http://dx.doi.org/10.2166/wst.1995.0368.

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The objective of this work was to develop a commercially viable method to reduce waste feed and thus improve production efficiency and reduce discharge of solids and nutrients within tank based aquaculture systems. We developed and custom fabricated a feeding controller which uses ultrasound to detect uneaten feed and controls feeding events based upon appetite satiation as measured by the quantity of waste feed detected. During feeding, the developed device functions as a combination ultrasonic detector, feedback controller, and interval timer. The device functions as a feedback controller by ultrasonically sampling the stock tank effluent and turning off the feeder when an excessive amount of feed enters the effluent flow. After feeding has been inactivated, the ultrasonic waste feed controller operates as an interval timer and provides a user selected delay between feedings. A custom hydroacoustic probe assembly was developed to detect uneaten feed. The controller can be calibrated by adjusting the transducer signal gain to detect signals resulting from feed pellets, while reducing signals resulting from faeces. The controller has an adjustable set-point for deactivating the feeder circuit based upon the number of feed pellets detected by the transducer and a programmable delay time interval (from 5 to 160 min) to set the time between feedings. The controller also has an adjustable sampling rate for detection at different pipe velocities and an adjustable observation volume for use in standard 2, 3, 4 and 6 inch diameter effluent pipes. The cost in materials and labour to produce this waste feed controller was estimated at around $100 (U.S.).
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COSTAGLIOLA, GENNARO, RITA FRANCESE, and GIUSEPPE SCANNIELLO. "A VISUAL SYSTEM SUPPORTING SOFTWARE REUSE IN THE BANKING LEGACY SYSTEM CONTEXT." International Journal of Software Engineering and Knowledge Engineering 13, no. 01 (February 2003): 83–101. http://dx.doi.org/10.1142/s0218194003001202.

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Banking legacy systems intensively exchange messages in electronic format. Such systems are, for their nature, difficult to update and maintain. As a consequence, the introduction of new types of messages is a hard task. Adding new functionalities requires custom coding and software reuse is seen as a key to obtain a better time-to-market factor, risk and cost reduction. In this paper we describe the architecture and part of the implementation of the SI.RE. Visual System, an Interbanking Network Information System that lets us generate gateways for the exchange of electronic messages among banking legacy systems and supports software reuse. In particular, the SI.RE visual system contains a Visual Programming Environment that allows us to obtain a rapid development of the message handling functions. This environment implements a Visual Programming Language UVG that allows a programmer to reuse COBOL routines.
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Gkemou, Maria, Francesco Biral, Ioannis Gkragkopoulos, Giammarco Valenti, Ioannis Tsetsinas, Evangelos Bekiaris, and Andrea Steccanella. "Cooperation between Roads and Vehicles: Field Validation of a Novel Infrastructure-Based Solution for All Road Users’ Safety." Safety 7, no. 2 (May 17, 2021): 39. http://dx.doi.org/10.3390/safety7020039.

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Cooperative intelligent transport systems (C-ITS) are expected to considerably influence road safety, traffic efficiency and comfort. Nevertheless, their market penetration is still limited, on the one hand due to the high costs of installation and maintenance of the infrastructures and, on the other hand, due to the price of support automated driving functions. A breakthrough C-ITS technological solution was studied, designed, built and tested that is based on the implementation of custom low-cost on-road platforms (named “strips”) that embed micro/nano sensors, communication technologies and energy harvesting to shift intelligence from the vehicle to the road infrastructure. The strips, through a V2X and LTE communication gateway, transmit real-time, reliable and accurate information at lane level about the environmental and road condition, the traffic and the other road users’ position and speed. The exchanged information supports a series of C-ITS functions and services extending equipped vehicles capabilities and providing similar functions to non-equipped ones (including powered two wheelers). The general framework and the technological solution proposed is presented and the results of the field trials, conducted in three pilot sites around Europe, quantify the promising system performance as well as the positive effects of the C-ITS applications developed and tested on driver/rider’s behavior.
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Stutte, Gary W. "IMAGE ANALYSIS, SPREADSHEETS, AND GEOGRAPHIC INFORMATION SYSTEMS: AN INTEGRATED APPROACH FOR FRUIT AND VEGETABLE MANAGEMENT?" HortScience 27, no. 6 (June 1992): 692g—693. http://dx.doi.org/10.21273/hortsci.27.6.692g.

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Effective management of site variability has been shown to improve efficiency of chemical use, enhance of fruit quality, optimize irrigations and increase profits. Techniques for localizing and quantifying spatial variation through computer analysis of aerial imagery exist, but the detailed knowledge of soils, site history, and nutrition required for effective management of the variation often are not available in a readily accessible or timely fashion. As a consequence, the benefits of site-specific management have not been fully realized by horticultural managers. These limitations have been partially overcome by developing an information management system which integrates image analysis functions to identify crop stress, a geographic information system to relate stresses to resident and nonresident site factors, and custom spreadsheets that provide a cost/benefit analysis of various management decisions. The system allows a manager to visualize the probable impact of an intervention on variability, yield, and profits in a timely manner.
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Arai, Naoki, Shunsuke Yoshikawa, Nobuaki Yasuo, Ryunosuke Yoshino, and Masakazu Sekijima. "Compound property enhancement by virtual compound synthesis." Journal of Bioinformatics and Computational Biology 16, no. 03 (June 2018): 1840016. http://dx.doi.org/10.1142/s0219720018400164.

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During drug discovery, drug candidates are narrowed down over several steps to develop pharmaceutical products. The theoretical chemical space in such steps is estimated to be [Formula: see text]. To cover that space, extensive virtual compound libraries have been developed; however, the compilation of extensive libraries comes at large computational cost. Thus, to reduce the computational cost, researchers have constructed custom-made virtual compound libraries that focus on target diseases. In this study, we develop a system that generates virtual compound libraries from input compounds. When a user inputs a compound, the system recursively applies virtual synthetic reaction rules to the compound to improve its properties. The synthetic pathway can also be traced by the user because the reaction rules in this system are based on real organic synthesis reactions. This system has useful functions for effective drug design, such as structural preservation, allowing the substructures necessary for potency to be maintained. In this paper, to confirm the effect of directional reaction sets, we applied the reaction sets to 100 compounds. Moreover, to confirm that the system can reproduce real synthetic pathways, the synthetic pathways of Ibuprofen and Ofloxacin were explored by inputting isobutyl benzene and 7,8-difluoro-2,3-dihydro-3-methyl-4H-benzoxazine. This application is available at the following URL: http://enh.sekijima-lab.org .
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Rath, Linda. "Omeka.net as a librarian-led digital humanities meeting place." New Library World 117, no. 3/4 (March 14, 2016): 158–72. http://dx.doi.org/10.1108/nlw-09-2015-0070.

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Purpose – This case study aims to evaluate Omeka.net, the hosted Web publishing exhibit tool, as a low-cost and technology-friendly platform encouraging dynamic academic and non-academic communities to collaborate, explore and contribute to a genre film festival resource. Design/methodology/approach – A literature review established six variables to assess Omeka.net as a viable platform for libraries seeking to administer a resource-focused website adhering to information standards with limited budgets, training and technical or institutional support. The variables identified were cost; website management; content building and management; communities, engagement and collaboration; exploration and knowledge building; and website support. Findings – Omeka.net supports many activities with notable functions for website administration; collection building; media formats; collaboration; metadata; social media; user contributions; technical support; and the creation of simple, custom pages. While templates for page layouts offer a surprising amount of choices, some options are limited. Currently, interactive and exploratory items cannot be embedded into website pages. Originality/value – This paper discusses Omeka.net, the hosted version of the exhibit tool offered by Omeka, as a platform to encourage cross-sector collaboration for digital humanities projects, addressing a gap in the literature which focuses on Omeka.org, the open-source software version installed by libraries with access to servers and technical staff.
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Dat, Trinh Tan, Pham Cung Le Thien Vu, Nguyen Nhat Truong, Le Tran Anh Dang, Vu Ngoc Thanh Sang, and Pham The Bao. "Leaf Recognition Based on Joint Learning Multiloss of Multimodel Convolutional Neural Networks: A Testing for Vietnamese Herb." Computational Intelligence and Neuroscience 2021 (September 23, 2021): 1–19. http://dx.doi.org/10.1155/2021/5032359.

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A new modification of multi-CNN ensemble training is investigated by combining multiloss functions from state-of-the-art deep CNN architectures for leaf image recognition. We first apply the U-Net model to segment leaf images from the background to improve the performance of the recognition system. Then, we introduce a multimodel approach based on a combination of loss functions from the EfficientNet and MobileNet (called as multimodel CNN (MMCNN)) to generalize a multiloss function. The joint learning multiloss model designed for leaf recognition allows each network to perform its task and cooperate with the others simultaneously, where knowledge from various trained deep networks is shared. This cooperation-proposed multimodel is forced to deal with more complicated problems rather than a simple classification. Therefore, the network can learn much rich information and improve its generalization capability. Furthermore, a multiloss trade-off strategy between two deep learning models can reduce the effect of redundancy problems in ensemble classifiers. The performance of our approach is evaluated by our custom Vietnamese herbal leaf species dataset, and public datasets such as Flavia, Leafsnap, and Folio are used to build test cases. The results confirm that our approach enhances the leaf recognition performance and outperforms the current standard single networks while having less low computation cost.
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Lee, W., M. Yoon, and M. Sunwoo. "A cost- and time-effective hardware-in-the-loop simulation platform for automotive engine control systems." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 217, no. 1 (January 1, 2003): 41–52. http://dx.doi.org/10.1243/095440703762702969.

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A new PC-based hardware-in-the-loop simulation (HILS) platform is developed for designing an automotive engine control system. The HILS equipment consists of a widely used PC and commercial off-the-shelf (COTS) I/O boards instead of a powerful computing system and custom-made I/O boards. These features make the HILS equipment more cost effective and flexible. The HILS uses an automatic code generation extension, REAL-TIME WORKSHOP® of the MATLAB® tool-chain, which is one of the standard tools for modelling and off-line simulation in the area of controller design. This helps the control system developers to handle the controlled-object model more easily and to test the control system more comfortably and time effectively. The mean value engine model, which is used in the control design phase, is imported in this HILS. The engine model is supplemented with some I/O subsystems and I/O boards to interface actual input and output signals in real time. The I/O subsystems are designed to synchronize the status of the engine model with the control system as well as to convert the raw data of the I/O boards to the appropriate forms for proper interfaces. To prove the feasibilities of the proposed environment, a pilot project for the development of an air-to-fuel ratio control system is carried out. The HILS environment is proved to be an efficient tool to develop various control functions and to validate the software and hardware of the engine control system.
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Badora, Maciej, Marzia Sepe, Marcin Bielecki, Antonino Graziano, and Tomasz Szolc. "Predicting length of fatigue cracks by means of machine learning algorithms in the small-data regime." Eksploatacja i Niezawodnosc - Maintenance and Reliability 23, no. 3 (July 7, 2021): 575–85. http://dx.doi.org/10.17531/ein.2021.3.19.

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In this paper several statistical learning algorithms are used to predict the maximal length of fatigue cracks based on a sample composed of 31 observations. The small-data regime is still a problem for many professionals, especially in the areas where failures occur rarely. The analyzed object is a high-pressure Nozzle of a heavy-duty gas turbine. Operating parameters of the engines are used for the regression analysis. The following algorithms are used in this work: multiple linear and polynomial regression, random forest, kernel-based methods, AdaBoost and extreme gradient boosting and artificial neural networks. A substantial part of the paper provides advice on the effective selection of features. The paper explains how to process the dataset in order to reduce uncertainty; thus, simplifying the analysis of the results. The proposed loss and cost functions are custom and promote solutions accurately predicting the longest cracks. The obtained results confirm that some of the algorithms can accurately predict maximal lengths of the fatigue cracks, even if the sample is small.
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Gutiérrez, Álvaro, Nicola Farella, Ángel Gil-Agudo, and Ana de los Reyes Guzmán. "Virtual Reality Environment with Haptic Feedback Thimble for Post Spinal Cord Injury Upper-Limb Rehabilitation." Applied Sciences 11, no. 6 (March 10, 2021): 2476. http://dx.doi.org/10.3390/app11062476.

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Cervical spinal cord injury is damage to the spinal cord that causes temporary or permanent changes in body functions below the site of the injury. In particular, the impairment of the upper limbs limits the patient’s autonomy in the execution of activities of daily living. This paper illustrates the use of a low-cost robot with a virtual reality platform for upper limb rehabilitation of cervical spinal cord injury patients. Vibration and pressure haptic feedback sensations are provided thanks to a custom-made thimble feedback device. The virtual reality platform consists of three different virtual rehabilitation games developed in Unity. They provide the user with the opportunity to interact with the virtual scene using free hands thanks to the data collected by a hand tracking system. During the therapy session, quantitative data about the motor performance are collected. Each virtual reality environment can be modified in settings according to the patients’ needs. A proof of concept was performed with both healthy subjects and spinal cord injured patients to evaluate the platform and its usability. The data saved during the sessions are analyzed to validate the importance of haptic feedback and stored both for patients and therapists to control the performance and the recovery process.
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Veloria, John, Minhye Shin, Ashwini K. Devkota, Shelley M. Payne, Eun Jeong Cho, and Kevin N. Dalby. "Developing Colorimetric and Luminescence-Based High-Throughput Screening Platforms for Monitoring the GTPase Activity of Ferrous Iron Transport Protein B (FeoB)." SLAS DISCOVERY: Advancing the Science of Drug Discovery 24, no. 5 (April 30, 2019): 597–605. http://dx.doi.org/10.1177/2472555219844572.

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Iron is an essential requirement for the survival and virulence for bacteria. The bacterial ferrous iron transporter protein B (FeoB) functions as a major iron transporter in prokaryotes and has an N-terminal domain (NFeoB) with homology to eukaryotic G-proteins. Its GTPase activity is required for ferrous iron uptake, making it a potential target for antivirulence therapies. Here, two assay strategies relying on different spectroscopic readouts are described to monitor NFeoB GTPase activity. The first one is the colorimetric-based platform that utilizes a malachite green reagent to monitor phosphate production from GTP hydrolysis. The absorbance change directly relates to the GTPase activity of NFeoB. The assay was further improved by the addition of Tween-20 and miniaturized in a 384-well plate format with a 10 µL assay volume. The second format is a luminescence-based platform, measuring the GTP depletion by using a modified GTPase-Glo assay from Promega. In this platform, the luminescence signal correlates to the amount of GTP remaining, allowing for the direct calculation of GTP hydrolysis by NFeoB. The colorimetric platform was tested in a high-throughput manner against a custom-assembled library of a~2000 small molecules and was found to be simple, cost-effective, and robust. Additionally, the luminescence-based platform demonstrated its capability as an orthogonal assay to monitor GTPase activity, providing a valid and convenient method to filter false hits. These two assay platforms are proven to offset the limitations of each platform while enhancing overall quality and success rates.
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Cajal, Carlos, Jorge Santolaria, David Samper, and Jesus Velazquez. "Efficient volumetric error compensation technique for additive manufacturing machines." Rapid Prototyping Journal 22, no. 1 (January 18, 2016): 2–19. http://dx.doi.org/10.1108/rpj-05-2014-0061.

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Purpose – This paper aims to present a methodology for volumetric error compensation. This technique is applied to an Objet Eden350V 3D printer and involves a custom measurement strategy. Design/methodology/approach – The kinematic model of the printer is explained, and its error model is simplified to 18 independent error functions. Each error function is defined by a cubic Legendre polynomial. The coefficients of the polynomials are obtained through a Levenberg–Marquardt optimization process. This optimization process compares, in an iterative algorithm, nominal coordinates with actual values of the cloud of points. The points are built in the faces of a gauge artefact as conical sockets defining one unique point for each socket. These points are measured by a coordinate measuring machine self-centring measurement process. Findings – Most of the errors of the 3D printer are systematic. It is possible to obtain an improvement of 70 per cent in terms of global mean error reduction in single points within a volume of 120 × 120 × 40 mm. The forecast of the final error compensation fully matches the actual final error. Practical implications – This methodology can be used for accuracy improvement in additive manufacturing machines. Originality/value – Unlike the calculation of geometric errors, the proposed parametric determination through optimization of the error model allows global error reduction, which decreases all sort of systematic errors concurrently. The proposed measurement strategy allows high reliability, high speed and operator independence in the measurement process, which increases efficiency and reduces the cost. The proposed methodology is easily translated to other rapid prototyping machines and allows scalability when replicating artefacts covering any working volume.
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Zhang, Chongyuan, Chongyuan Zhang, Michael O. Pumphrey, Jianfeng Zhou, Qin Zhang, Sindhuja Sankaran, Michael O. Pumphrey, Jianfeng Zhou, Qin Zhang, and Sindhuja Sankaran. "Development of an Automated High- Throughput Phenotyping System for Wheat Evaluation in a Controlled Environment." Transactions of the ASABE 62, no. 1 (2019): 61–74. http://dx.doi.org/10.13031/trans.12856.

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Abstract. Plant breeding has significantly improved in recent years; however, phenotyping remains a bottleneck, as the process of evaluating and measuring plant traits is often expensive, subjective, and laborious. Although commercial phenotyping systems are available, factors like cost, space, and need for specific controlled-environment conditions limit the affordability of these products. An accurate, user-friendly, adaptive, and high-throughput phenotyping (HTP) system is highly desirable to plant breeders, physiologists, and agronomists. To solve this problem, an automated HTP system and image processing algorithms were developed and tested in this study. The automated platform was an integration of an aluminum framework (including movement and control components), three cameras, and a laptop computer. A control program was developed using LabVIEW to manage operation of the system frame and sensors as a single-unit automated HTP system. Image processing algorithms were developed in MATLAB for high-throughput analysis of images acquired by the system to estimate phenotypes and traits associated with tested plants. The phenotypes extracted were color/spectral, texture, temperature, morphology, and greenness features on a temporal scale. Using two wheat lines with known heat tolerance, the functions of the HTP system were validated. Heat stress tolerance experiments revealed that features such as green leaf area and green normalized difference vegetation index derived from our system showed differences between the control and heat stress treatments, as well as between heat-tolerant and susceptible wheat lines. In another experiment, stripe rust resistance in wheat was assessed. With the HTP system, some potential for detecting qualitative traits, such as disease resistance, was observed, although further validation is needed. In summary, successful development and implementation of an automated system with custom image processing algorithms for HTP in wheat was achieved. Improvement of such systems would further help plant breeders, physiologists, and agronomists to phenotype crops in an efficient, objective, and high-throughput manner. Keywords: Automation, Heat stress, Image processing, Plant breeding, Sensing, Stripe rust.
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Charitopoulos, George, Dionisios N. Pnevmatikatos, and Georgi Gaydadjiev. "MC-DeF." ACM Transactions on Architecture and Code Optimization 18, no. 3 (June 2021): 1–25. http://dx.doi.org/10.1145/3447970.

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Executing complex scientific applications on Coarse-Grain Reconfigurable Arrays ( CGRAs ) promises improvements in execution time and/or energy consumption compared to optimized software implementations or even fully customized hardware solutions. Typical CGRA architectures contain of multiple instances of the same compute module that consist of simple and general hardware units such as ALUs, simple processors. However, generality in the cell contents, while convenient for serving a wide variety of applications, penalizes performance and energy efficiency. To that end, a few proposed CGRAs use custom logic tailored to a particular application’s specific characteristics in the compute module. This approach, while much more efficient, restricts the versatility of the array. To date, versatility at hardware speeds is only supported with Field programmable gate arrays (FPGAs), that are reconfigurable at a very fine grain. This work proposes MC-DeF, a novel Mixed-CGRA Definition Framework targeting a Mixed-CGRA architecture that leverages the advantages of CGRAs by utilizing a customized cell array, and those of FPGAs by incorporating a separate LUT array used for adaptability. The framework presented aims to develop a complete CGRA architecture. First, a cell structure and functionality definition phase creates highly customized application/domain specific CGRA cells. Then, mapping and routing phases define the CGRA connectivity and cell-LUT array transactions. Finally, an energy and area estimation phase presents the user with area occupancy and energy consumption estimations of the final design. MC-DeF uses novel algorithms and cost functions driven by user defined metrics, threshold values, and area/energy restrictions. The benefits of our framework, besides creating fast and efficient CGRA designs, include design space exploration capabilities offered to the user. The validity of the presented framework is demonstrated by evaluating and creating CGRA designs of nine applications. Additionally, we provide comparisons of MC-DeF with state-of-the-art related works, and show that MC-DeF offers competitive performance (in terms of internal bandwidth and processing throughput) even compared against much larger designs, and requires fewer physical resources to achieve this level of performance. Finally, MC-DeF is able to better utilize the underlying FPGA fabric and achieves the best efficiency (measured in LUT/GOPs).
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Wu, Cui, Zhen Wang, Hui Wu, Zhan Lu, Cheng Qian, Shunru Jin, Rui Wang, et al. "A Sample-to-Answer Compact Optical System for On-Site Detection of Candidatus Liberibacter Asiaticus." Transactions of the ASABE 64, no. 1 (2021): 95–102. http://dx.doi.org/10.13031/trans.13937.

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HighlightsA portable system based on real-time fluorescence analysis was developed for field detection of Candidatus Liberibacter asiaticus within 40 min from sample to answer.A smartphone-assisted device was designed for easy operation, reliable nucleic acid amplification, and highly sensitive fluorescence detection, with sensitivity comparable to that of a commercial instrument.A novel homemade 3D printed box was used for in-field reagent storage, and it could maintain low temperature (&lt;4°C) for about 8 hours without power supply.This fully integrated system is stable, easy to use, inexpensive, and has great application prospects in resource-limited areas.Abstract. Candidatus Liberibacter asiaticus (Las) is a main causal agent of huanglongbing (HLB), a destructive disease that has greatly reduced citrus yields and quality. Instruments with high sensitivity and portability are urgently required for on-site testing. In this study, a novel sample-to-answer optical system for on-site detection of Las was developed. Three major functions, including DNA extraction, amplification, and detection, are integrated into a portable case. This system mainly consists of (1) a specially designed 3D printed box for on-site reagent storage that can maintain low temperature (below 4°C) for 7.5 h at ambient temperature (35°C); (2) a custom device, called the IF-Device, for DNA amplification and detection of HLB, with an optimized optical structure, a sensitive signal processing circuit, and a precise temperature control algorithm with an accuracy of ±0.1°C; and (3) a battery-based power supply for the whole system. In a typical test using sodium fluorescein as a standard model, the results showed that the sensitivity of this system (1.0 nM) could easily meet the requirements of fluorescence biosensors. The feasibility of this homemade system was evaluated with samples extracted from infected citrus leaves based on the loop-mediated isothermal amplification (LAMP) method, and the limit of detection (LOD) was approximately 1.0 × 10-4 ng µL-1. The whole detection process for eight samples could be simultaneously accomplished within 40 min, and the results could be displayed on a smartphone in real-time. Moreover, the portable case is anti-interference, low cost, and only 2 kg in weight. Considering its sensitivity, stability, and portability, this highly integrated system possesses promising prospects for in-field detection. Keywords: Field detection, Fluorescence biosensor, Huanglongbing, Isothermal amplification, Sample-to-answer.
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Chughtai, Morad, John Kelly, Jared Newman, Assem Sultan, Anton Khlopas, Nipun Sodhi, Anil Bhave, Michael Kolczun, and Michael Mont. "The Role of Virtual Rehabilitation in Total and Unicompartmental Knee Arthroplasty." Journal of Knee Surgery 32, no. 01 (March 16, 2018): 105–10. http://dx.doi.org/10.1055/s-0038-1637018.

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AbstractThis study evaluated the use of telerehabilitation during the postoperative period for patients who underwent total knee arthroplasty (TKA) or unicompartmental knee arthroplasty (UKA). Specifically, this study evaluated the following: (1) patient compliance and adherence to the program, (2) time spent performing physical therapy exercises, (3) the usability of the virtual rehabilitation platform, and (4) clinical outcome scores in a selected primary knee arthroplasty cohort. A total of 157 consecutive patients underwent TKA (n = 18) or UKA (n = 139). These patients used a telerehabilitation system with an instructional avatar, three-dimensional motion measurement and analysis software, and real-time televisit capability designed for arthroplasty patients. Compliance was determined by how many times the patients followed prescribed repetitions of exercises. The total time spent performing exercises for each patient was collected. The usability of the virtual rehabilitation platform (on the patient's end) was evaluated using the system usability scale (SUS) questionnaire. The number of in-person and televisits was recorded for each patient. Patient-reported outcomes were collected through the patient and clinician interfaces and included the Knee Society Score (KSS) for pain and functions, the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score, and Boston University Activity Measure for Post-Acute Care (AM-PAC) score. Patients spent an average of 29.5 days partaking in the therapy. TKA and UKA patients had a mean of 3.5 and 3.2 outpatient follow-up visits, each, for in-office therapy with a physical therapist, respectively. This figure exceeded the mean number of real-time virtual patient–clinician visits by 0.8 visits per patient in the TKA cohort and by 1 visit per patient in the UKA cohort. Patients spent on average 26.5 minutes per day conducting an average of 13.5 exercises. By the end of rehabilitation, patients had spent an average of 10.8 hours performing exercises, and of all the exercises performed, approximately 21 exercises were uniquely designed. Mean SUS score in the cohort was 93 points, which was interpreted as being above the 50th percentile point of the scale. Following therapy, KSS pain and function scores improved markedly and the improvements were measured at 368% for TKA and 350% for UKA (pain) and 27% for UKA and 33% for TKA (function). In addition, WOMAC scores improved by 57% and 66% for UKA and TKA patients while the improvement in AM-PAC scores was at 22% and 24%. This telerehabilitation platform encouraged clinician–patient interaction beyond the hospital setting and offers the advantage of cost savings, convenience, at-home monitoring, and coordination of care, all of which are geared to improve adherence and overall patient satisfaction. Additionally, the biometric data can be used to develop custom physical therapy regimens to assure proper rehabilitation, which is lacking in other telerehabilitation applications that use noninteractive videos that can be watched on mobile devices and tablets.
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Bataev, Vyacheslav V. "Development of system-methodological bases to increase the efficiency of foreign economic activities of industrial enterprises." Vestnik of Samara State Technical University. Technical Sciences Series 29, no. 1 (April 23, 2021): 6–18. http://dx.doi.org/10.14498/tech.2021.1.1.

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The paper proposes a methodology for analyzing the system of interaction between an industrial enterprise and customs authorities in the process of carrying out foreign trade activities based on the classification and assessment of the system elements functions for performing customs operations and customs control. Foreign economic activity, which is a set of functions of organizations focused on the foreign market in terms of the chosen foreign economic strategy, as well as the forms and methods of work in foreign markets is considered as one of the key factors in the efficiency of an industrial enterprise. Analysis of the foreign economic activity of an industrial enterprise using the developed methodology will make it possible to determine the optimal and cost-effective options for performing customs operations related to the declaration and release of goods in accordance with the declared customs procedure. The focus on large participants of foreign economic activity, which are industrial enterprises, will allow using the results of the study to reduce non-production costs associated with the implementation of foreign trade activities by these enterprises. We have chosen an enterprise of the metallurgical industry that carries out foreign economic activity in cooperation with the customs authorities of the Russian Federation as the object of the system analysis in this research. At the same time the object of analysis is considered as a unified system that has the main system properties: integrity and divisibility, the presence of significant stable links between the elements of the system, the organization and the hierarchical structure of the system, integrative qualities. The object of the research is a complex-structured system of interactions between industrial enterprises that are participants of foreign economic activity and the customs authorities of the Russian Federation. The schemes of interactions of all elements of the four-level hierarchical structure of the analyzed system are illustrated.
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Kostecki, Robert. "Application of the Spatial Database for Shoreline Change Analysis and Visualisation: Example from the Western Polish Coast, Southern Baltic Sea." Quaestiones Geographicae 37, no. 3 (September 6, 2018): 25–34. http://dx.doi.org/10.2478/quageo-2018-0023.

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Abstract The main aim of the study was to introduce a spatial database application for the estimation of changes in shoreline position. The open-source PostgreSQL database system with the PostGIS spatial extension was used as the data store for digitalised shorelines. The solution to calculations of the shoreline changes was based on the functions written in the PL/SQL language and geospatial functions provided by the PostGIS extension. The traditional baseline and transects method was used to quantify the distances and rate of shoreline movement. Outputs of the calculations were stored in the database table and simply visualised using graphical functions in the R software environment or in GIS Desktop software. The advantage of presented method is the application of SQL language in the analysis of the relation between the geometry of shorelines stored in the database table, which, compared to other similar solutions, gives the user fully open, simple analytical code and enable selecting custom parameters of analysis, modifying code and performing additional calculations.
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Prates, Glaucia Aparecida. "METHODS OF COSTING - TARGET (TARGET COSTING) AND KAIZEN (KAIZEN COSTING) SUPPORTED BY QFD (Quality Function Deployment) AS A TOOL FOR COST REDUCTION IN DEVELOPMENT PRODUCT AND PRODUCTION." Nucleus 11, no. 1 (April 30, 2014): 7–20. http://dx.doi.org/10.3738/1982.2278.982.

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Dwi, Weno, Zainuri, and Widya Apriani. "Analisis Biaya Pemeliharaan dan Perawatan Kantor Pelayanan Bea dan Cukai Pekanbaru." JURNAL TEKNIK 14, no. 2 (October 31, 2020): 203–7. http://dx.doi.org/10.31849/teknik.v14i2.4909.

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The existence of buildings has an important role in human life according to the purpose of the building. After completion of a building is expected to be able to carry out its functions according to the age of the plan. The purpose of this study is to estimate the cost of maintenance and care at the Pekanbaru Customs and Excise Service Office based on PERMEN NO.24 / PRT / M / 2008. It is expected that with this system, maintenance and maintenance activities will be in accordance with applicable standards and retain the use and value of the building. Regulation of the Minister of Public Works Number: 24 / PRT / M / 2008 concerning guidelines for building maintenance and maintenance, building maintenance This research was conducted using the Approximate Estimate method using the highest average unit price per m² of storey buildings for buildings accurate building as a guideline.he results of the calculation of this study found the estimated cost estimate of rough estimate (approximate estimate) of Rp. 16.156.679,93, - when compared with the calculation of the building price of Rp. 11.483.051,200 - the percentage of costs for maintenance of buildings in Pekanbaru Customs Service Office is only 0,1407% of the total price of the building, so that it can be categorized in the level of minor damage (<35%). Whereas the annual maintenance fee is Rp. 319.792.000,00, - in 2020 which is expected to increase every year based on the value of inflation based on Bank Indonesia. Keywords: Estimation, Maintenance, Maintenance, Offices spase
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MCCLANAHAN, T. R., H. GLAESEL, J. RUBENS, and R. KIAMBO. "The effects of traditional fisheries management on fisheries yields and the coral-reef ecosystems of southern Kenya." Environmental Conservation 24, no. 2 (June 1997): 105–20. http://dx.doi.org/10.1017/s0376892997000179.

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Many traditions of coastal peoples may be viewed as traditional forms of marine conservation because, like modern fisheries management, they restrict fishing gear, fishing times, and places, but their effects are little studied in practice. A study was undertaken of human culture and fisheries resources in an area of southern Kenya, designated as a national marine reserve, to determine the effect of the existing 'traditional management' on fisheries yields and on the ecological condition of the fished reefs. This area has one of the oldest and most elaborate cultural traditions concerning sacred sites and rituals of sacrifice along the Kenyan coast. The purpose of the customs is, however, to appease spirits rather than to regulate fish stocks which are traditionally seen to fluctuate independently of fishing effort. Many of these traditions have decayed in recent times as Islamization of the culture has occurred, and authority has shifted towards national organizations, weakening the effectiveness of the traditional leaders. Coincidentally, fishers have adopted new or foreign gear, colleagues, and traditions. Two adjacent landing sites (Mvuleni and Mwanyaza) have, however, successfully stopped pull seiners from landing their catch at their sites for over 20 years through passive means. Other landing sites have adopted pull seining. Both landing areas use arguments based on tradition to justify their use of gear. The two landings that restrict pull seining have higher per capita fish catches than those that do not. Nonetheless, there were no obvious differences in the ecological condition of the reefs at these two management areas; both areas were amongst the most degraded reefs reported in East Africa. Biological diversity and coral cover were reduced greatly in all these areas compared to other fished or fully-protected marine park or reserve sites established by the national government. Presently, traditional management is not effective in protecting species diversity or ecological functions, which was probably never the intention of the customs. The conflict between national organizations and local fishers arises because some resource users are concerned that the management proposed by the national organizations will eventually lead to the total loss of access to, and control of the resource by local fishers. There is, therefore, a need to resolve conflicts concerning gear use and regulation, and a need to increase awareness of the expectations and management programmes among the national and local organizations. Many of the traditional forms of management are compatible with the policies of national organizations, but confusion and conflict occur concerning enforcement and its benefits. To solve these conflicts discussions are required between traditional and national fisheries leaders to develop mutually-acceptable policies that augment and share the power of management.
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Rudas, Imre J. "Intelligent Engineering Systems." Journal of Advanced Computational Intelligence and Intelligent Informatics 4, no. 4 (July 20, 2000): 237–39. http://dx.doi.org/10.20965/jaciii.2000.p0237.

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The "information revolution" of our time affects our entire generation. While a vision of the "Information Society," with its financial, legal, business, privacy, and other aspects has emerged in the past few years, the "traditional scene" of information technology, that is, industrial automation, maintained its significance as a field of unceasing development. Since the old-fashioned concept of "Hard Automation" applicable only to industrial processes of fixed, repetitive nature and manufacturing large batches of the same product1)was thrust to the background by keen market competition, the key element of this development remained the improvement of "Machine Intelligence". In spite of the fact that L. A. Zadeh already introduced the concept of "Machine Intelligence Quotient" in 1996 to measure machine intelligence2) , this term remained more or less of a mysterious meaning best explicable on the basis of practical needs. The weak point of hard automation is that the system configuration and operations are fixed and cannot be changed without incurring considerable cost and downtime. Mainly it can be used in applications that call for fast and accurate operation in large batch production. Whenever a variety of products must be manufactured in small batches and consequently the work-cells of a production line should be quickly reconfigured to accommodate a change in products, hard automation becomes inefficient and fails due to economic reasons. In these cases, new, more flexible way of automation, so-called "Soft Automation," are expedient and suitable. The most important "ingredient" of soft automation is its adaptive ability for efficiently coping with changing, unexpected or previously unknown conditions, and working with a high degree of uncertainty and imprecision since in practice increasing precision can be very costly. This adaptation must be realized without or within limited human interference: this is one essential component of machine intelligence. Another important factor is that engineering practice often must deal with complex systems of multiple variable and multiple parameter models almost always with strong nonlinear coupling. Conventional analysis-based approaches for describing and predicting the behavior of such systems in many cases are doomed to failure from the outset, even in the phase of the construction of a more or less appropriate mathematical model. These approaches normally are too categorical in the sense that in the name of "modeling accuracy," they try to describe all structural details of the real physical system to be modeled. This significantly increases the intricacy of the model and may result in huge computational burden without considerably improving precision. The best paradigm exemplifying this situation may be the classic perturbation theory: the less significant the achievable correction is, the more work must be invested for obtaining it. Another important component of machine intelligence is a kind of "structural uniformity" giving room and possibility to model arbitrary particular details a priori not specified and unknown. This idea is similar to that of the ready-to-wear industry, whose products can later be slightly modified in contrast to the custom-tailors' made-to-measure creations aiming at maximum accuracy from the beginning. Machines carry out these later corrections automatically. This "learning ability" is another key element of machine intelligence. To realize the above philosophy in a mathematically correct way, L. A. Zadeh separated Hard Computing from Soft Computing. This revelation immediately resulted in distinguishing between two essential complementary branches of machine intelligence: Hard Computing based Artificial Intelligence and Soft Computing based Computational Intelligence. In the last decades, it became generally known that fuzzy logic, artificial neural networks, and probabilistic reasoning based Soft Computing is a fruitful orientation in designing intelligent systems. Moreover, it became generally accepted that soft computing rather than hard computing should be viewed as the foundation of real machine intelligence via exploiting the tolerance for imprecision, uncertainty and partial truth to achieve tractability, robustness, low solution cost and better rapport with reality. Further research in the past decade confirmed the view that typical components of present soft computing such as fuzzy logic, neurocomputing, evolutionary computation and probabilistic reasoning are complementary and best results can be obtained by their combined application. These complementary branches of Machine Intelligence, Artificial Intelligence and Computational Intelligence, serve as the basis of Intelligent Engineering Systems. The huge number of scientific results published in journals and conference proceedings worldwide substantiates this statement. Three years ago, a new series of conferences in this direction was initiated and launched with the support of several organizations including the IEEE Industrial Electronics Society and IEEE Hungary Section in technical cooperation with IEEE Robotics & Automation Society. The first event of the series hosted by Bdnki Dondt Polytechnic, Budapest, Hungary, was called "19997 IEEE International Conference on Intelligent Engineering Systems " (INES'97). The Technical University of Vienna, Austria hosted the next event of the series in 1998, followed by INES'99 held by the Technical University of Kosice, Slovakia. The present special issue consists of the extended and revised version of the most interesting papers selected out of the presentations of this conference. The papers exemplify recent development trends of intelligent engineering systems. The first paper pertains to the wider class of neural network applications. It is an interesting report of applying a special Adaptive Resonance Theory network for identifying objects in multispectral images. It is called "Extended Gaussian ARTMAP". The authors conclude that this network is especially advantageous for classification of large, low dimensional data sets. The second paper's subject belongs to the realm of fuzzy systems. It reports successful application of fundamental similarity relations in diagnostic systems. As an example failure detection of rolling-mill transmission is considered. The next paper represents the AI-branch of machine intelligence. The paper is a report on an EU-funded project focusing on the storage of knowledge in a corporate organizational memory used for storing and retrieving knowledge chunks for it. The flexible structure of the system makes it possible to adopt it to different SMEs via using company-specific conceptual terms rather than traditional keywords. The fourth selected paper's contribution is to the field of knowledge discovery. For this purpose in the first step, cluster analysis is done. The method is found to be helpful whenever little or no information on the characteristics of a given data set is available. The next paper approaches scheduling problems by the application of the multiagent system. It is concluded that due to the great number of interactions between components, MAS seems to be well suited for manufacturing scheduling problems. The sixth selected paper's topic is emerging intelligent technologies in computer-aided engineering. It discusses key issues of CAD/CAM technology of our days. The conclusion is that further development of CAD/CAM methods probably will serve companies on the competitive edge. The seventh paper of the selection is a report on seeking a special tradeoff between classical analytical modeling and traditional soft computing. It nonconventionally integrates uniform structures obtained from Lagrangian Classical Mechanics with other simple elements of machine intelligence such as saturated sigmoid transition functions borrowed from neural nets, and fuzzy rules with classical PID/ST, and a simplified version of regression analysis. It is concluded that these different components can successfully cooperate in adaptive robot control. The last paper focuses on the complexity problem of fuzzy and neural network approaches. A fuzzy rule base, be it generated from expert operators or by some learning or identification schemes, may contain redundant, weakly contributing, or outright inconsistent components. Moreover, in pursuit of good approximation, one may be tempted to overly assign the number of antecedent sets, thereby resulting in large fuzzy rule bases and much problems in computation time and storage space. Engineers using neural networks have to face the same complexity problem with the number of neurons and layers. A fuzzy rule base and neural network design, hence, have two important objectives. One is to achieve a good approximation. The other is to reduce the complexity. The main difficulty is that these two objectives are contradictory. A formal approach to extracting the more pertinent elements of a given rule set or neurons is, hence, highly desirable. The last paper is an attempt in this direction. References 1)C. W. De Silva. Automation Intelligence. Engineering Application of Artificial Intelligence. Vol. 7. No. 5. 471-477 (1994). 2)L. A. Zadeh. Fuzzy Logic, Neural Networks and Soft Computing. NATO Advanced Studies Institute on Soft Computing and Its Application. Antalya, Turkey. (1996). 3)L. A. Zadeh. Berkeley Initiative in Soft Computing. IEEE Industrial Electronics Society Newsletter. 41, (3), 8-10 (1994).
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Zysińska, Małgorzata. "Evaluation of selected practices in the field of urban logistics in Poland." AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 24, no. 6 (June 30, 2019): 365–70. http://dx.doi.org/10.24136/atest.2019.178.

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Dynamic growth of automotive indicator and increasing level of freight being carried in the Polish cities are causing serious transport problems. Migration to the cities is a trend observed still in Poland that is expected to continue. Bottlenecks, delivery obstacles, congestion, traffic jams and air pollutions require prompt organizational and technological intervention. The article starts a discussion about the condition of the urban logistics in Poland, comparing various models from the local government authorities point of view and inhabitants. The author outlines the barriers and obstacles in the planning and implementing of the modern urban logistical solutions. The majority of municipal and local government authorities, despite the declared enthusiasm for the smart city concept, prefer traditional infrastructure investments, instead of joint and interdisciplinary planning of the combined organizational and technological solutions tailored to the needs of a specific city. There is an urgent need to introduce regulations limiting freight traffic in the Polish cities, road tolls depending on emissivity, payloads, parking infrastructure. There should be rules planned determining time windows in the urban transport, organizing in-city consolidation centers, etc. The paper includes recommendations for creating Urban Vehicle Access Regulation Schemes for the Polish cities. The article includes also the findings and recommendation for the Polish cities in the field of urban logistics. The author emphasizes, however, that there is still a lack of long-term investment plans in the field of logistics and freight transport in so-called smart cities. The paper demonstrates that the efficiency of the functioning of Po-land’s urban logistics network does not necessarily imply cost-intensive infrastructural development. The optimization of logistics activities should be brought about in urbanized areas primarily based on the organisational changes in the transportation system, customs, habits and behavioral patterns of its users as well as the altered functions of selected. Such an approach is the closest to the views expressed by the inhabitants; however, it all too often proves contradictory to the interests of the other stakeholders of the system. Any changes to the city’s transport layouts or systems, or mobility policies (as a broader concept), call for a broad public contribution when it comes to consulting projects and designing the improvements. Organisational and financial support is likewise indispensable, along with the development of an incentives system. The author also pointed out a need to monitor comprehensively the solutions in the field of urban logistics and urban freight transport of the Polish cities using socio-economic analysis tools. The selected methods of evaluating the urban logistics solutions, incl. comparative best practices analysis, have been discussed.
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TRUSHKINA, N. V., and N. S. RYNKEVICH. "PROPOSALS FOR THE CREATION OF THE APPROPRIATE INSTITUTIONAL CONDITIONS OF THE FORMATION AND DEVELOPMENT OF LOGISTIC CLUSTERS IN THE ECONOMIC REGIONS OF UKRAINE." Economic innovations 21, no. 3(72) (September 20, 2019): 138–49. http://dx.doi.org/10.31520/ei.2019.21.3(72).138-149.

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Topicality. One of the dynamic and rapid lines of development of modern regional ecosystems is transport logistics as an effective source of competitive advantages. This requires the use of new tools to improve the competitive ability of regions, including the cluster approach, the essence of which is the formation and development of logistic clusters by consolidating the efforts of the state, business, science, education in priority fields of economic activity. As international practice shows, the implementation of the cluster model of logistic activities will contribute to the reduction of total logistic costs by 12-35% as a result of reducing transport costs by 7-20% and the cost of handling operations by 20-30%, as well as accelerating the speed of circulation of material resources by 20-40%. Therefore, the creation of logistic clusters will create favorable conditions for the growth of the volume and quality of transport and logistics services and create a qualitatively new model of the regional economy.Aim and tasks. The aim of the article is to analyze the current state and problems of the formation of the institutional environment of functioning of logistic clusters in the economic regions of Ukraine, as well as to develop proposals for the creation of the appropriate institutional conditions for the development of logistic clusters as illustrated by the Prydniprovsky and Sloboda economic regions.Research results. It was found that the formation and effective functioning of logistic clusters in the regions of Ukraine is hampered by many key barriers that can be conditionally classified into the following groups, such as political, foreign economic, institutional, investment and financial, infrastructure, logistics. It was proved that for the effective development of logistic clusters in the economic regions of Ukraine it is reasonable to develop proposals for the creation of appropriate institutional conditions, which are to finalize the Strategies of the regional development in terms of institutional, investmen and financial, organizational and economic and information support of the functioning of logistic clusters using the cluster approach, as well as the Concepts of creating logistic clusters and Strategies for the integrated development of logistic clusters as a component of the regional transport and logistic system; implementation of the financial support mechanism, which includes exogenous and endogenous factors affecting the development of the regional transport and logistic system; the principles on which the formation of logistic clusters should be based; management functions (forecasting, planning, organization, accounting, control, analysis, regulation); a set of tools governing the organization and implementation of logistic activities, as well as the provision of transport services; financial instruments (venture investment, crowdinvesting, factoring, public-private partnership on the basis of attracting private investments, funds of credit institutions, foreign investment resources, grants of international financial organizations); means (digital, information and communication technologies, software, regulatory documents).Combination of modern cluster policy, mechanism of institutional support for the development of an integrated transport and logistic system and strategies of smart industry specializations in the context of decentralization will create the appropriate conditions for the formation of a logistic cluster as an effective form of partnership, strengthen the competitive advantages of the Prydniprovsky and Sloboda economic regions and increase the economic capacity of territorial communities.Conclusion. It was substantiated that the introduction of proposals for the creation of the appropriate institutional conditions for the formation and development of logistic clusters will contribute to a synergetic effect, the components of which are to increase the level of investment attractiveness of economic regions; increase revenues due to economic growth of territories; creation of new jobs and growth of employment; increase in the volume of cargo transportation and turnover; optimization of movement of logistic flows; cost reduction for the organization of logistic activities for the reduction of transport component in the cost of services, reduction in time to complete customs procedures for clearance of goods; provision of favourable conditions for the functioning of logistic market; creating objects of the appropriate logistic infrastructure (transport, trade, service, etc); improvement of the technology of transportation with the use of modern digital information and communication technologies.
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Viana, Raul Jorge, and Pedro Luís Büttenbender. "LA ADMINISTRACIÓN Y PERSPECTIVAS EN LOS MINIFUNDIOS DE LA PROVINCIA DE MISIONES – ARGENTINA." Revista GESTO: Revista de Gestão Estratégica de Organizações 9, no. 2 (March 14, 2021): 55–73. http://dx.doi.org/10.31512/gesto.v9i2.321.

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Resumen En la Provincia de Misiones, la evolución de los emprendimientos agrícolas a unidades de negocio de las pequeñas chacras, puede constituir un importante elemento en su desarrollo económico y social sustentable. Una pequeña chacra puede generar utilidades en el plano económico (ganancias) y en el social (beneficios). Para lograrlo, es necesario crear acciones estructurales que contemplen las particularidades de la actividad y la mentalidad administrativo empresarial de los agricultores. Planear, organizar, dirigir y controlar, todo de manera coordinada, son funciones elementales y esenciales proporcionadas por la ciencia de la Administración. El es exploratorio, de campo, descriptivo y analítico, y indaga sobre la presencia de la ciencia en la actividad cotidiana del pequeño agricultor. Mediante un estudio de campo, se determina que parte del problema es la falta de conocimientos administrativos básicos por parte del productor. Estas cuestiones sencillas, como elaborar una plantilla de costos a otras un poco más complejas como obtener rentabilidad, Visión, Misión, estructura, conocimiento del entorno, etc. Las conclusiones dejan abierta las perspectivas de proponer un plan de mejora educativa en el sector con formación en administración y negocios, organización asociativa, aumente sus capacidades para estar en el mercado y aportes al desarrollo regional. Palabras clave: Administración. Minifundio. Agricultura. Educación. Desarrollo Regional. Resumo Na Província de Misiones, a evolução das empresas agrícolas para unidades de negócios de pequenas propriedades pode constituir um elemento importante para o seu desenvolvimento econômico e social sustentável. Uma pequena fazenda pode gerar lucros economicamente (lucros) e socialmente (lucros). Para tal, é necessário criar ações estruturantes que tenham em conta as particularidades da atividade e a mentalidade empresarial-administrativa dos agricultores. Planejar, organizar, dirigir e controlar, tudo de forma coordenada, são funções elementares e essenciais da ciência da Administração. É exploratório, de campo, descritivo e analítico, investiga a presença da ciência no cotidiano do pequeno agricultor. Por meio de um estudo de campo, constata-se que parte do problema é a falta de conhecimentos administrativos básicos por parte do produtor. Essas questões simples, como desenvolver uma planilha de custos, para outros um pouco mais complexos como obter lucratividade, Visão, Missão, estrutura, conhecimento do meio ambiente, etc. As conclusões deixam abertas as perspectivas de propor um plano de melhoria educacional no setor com formação em administração e negócios, organização associativa , aumento de suas competências para atuar no mercado e aportes ao desenvolvimento regional. Palavras chave: Administração. Minifúndios. Agricultura. Educação. Desenvolvimento Regional. Abstract In the Province of Misiones, the evolution of agricultural enterprises to business units of small farms constitutes an important element on its sustainable economic and social development. A small farm can profit economically and socially. To achieve this, it is necessary to create structural actions that take into account the particularities of the activity and the farmers’ business-administrative mentality. Planning, organizing, directing and controlling, all in a coordinated manner, are elementary and essential functions provided by the science of Administration. The research was conducted as an exploratory, field research, descriptive and analytical study, and it investigates the presence of science in the daily activity of the small farmer. Through a field study, it was determined that part of the problem is the lack of basic administrative knowledge regarding the producer, such as developing a cost template to others a little more complex such as obtaining profitability, Vision, Mission, structure, knowledge of the environment, etc. The conclusions leave open the prospects of proposing an educational improvement plan in the sector with training in administration and business, associative organization, increasing their capacities to be in the market and its contributions to regional development. Keywords: Administration. Smallholding. Farming. Education. Regional Development.
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Tajik, Reza. "Technical and Economical Assessment of using Static Compensators for Improving Power Quality in Distribution Power Systems." International Journal of Current Engineering and Technology 8, no. 3 (May 20, 2018). http://dx.doi.org/10.14741/ijcet/v.8.3.11.

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Nowadays, various issues regarding the power quality have been widely considered. Regarding to the progress made in power electronics in recent years, the best way to improve the reliability of reducing voltage deviations, reducing losses, and generally providing high quality to consumers is to use custom power devices (CPDs). Series, parallel, or hybrid devices come from a subset of CPDs such as a dynamic voltage restorer, distribution static compensator, and unified power quality conditioner. In this work, the purpose of place these devices are to achieve various goals of improving power quality and reducing system costs. To achieve these goals, at first, the problem of single-objective optimization for each of the objective functions was solved separately. After determining the optimal value of each of the objective functions, the fuzzy membership functions for each of the objective functions were suitably optimized for each objective function. A mixed integer genetic algorithm was used to find the optimal answer to this multi-objective problem. The simulation results show that the proposed algorithm has worked well to find the optimal solution. The results of multi-objective planning proposed in this study show that with proper planning, it can be done at a low cost and even with a relatively high profit to cost and with the proper place of CPDs, to solve issues related to power quality issues in distribution networks.
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Sokhansanj, Shahab, Mahmood Ebadian, Lawrence Townley-Smith, and David Lee. "A simplified logistics model for integrating BIMAT and IBSAL to estimate harvest costs, energy input and emissions." Canadian Biosystems Engineering, March 29, 2019, 8.1–8.8. http://dx.doi.org/10.7451//cbe.2018.60.8.1.

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The Agriculture and Agri-Food’s Biomass Inventory Mapping and Analysis Tool (BIMAT) provides internet-based GIS functionality to query and visualize biomass inventory data in Canada. The Integrated Biomass Supply Analysis and Logistics (IBSAL) model is a modularized simulation of biomass supply chain. In this study, IBSAL modules are assembled to simulate harvesting of straw, stover, and switchgrass yields. The operations in this study started from combining for grain crop residues and ended in stacking bales on the field side. The equation C=aR^b Y^c was fitted to the simulated data to estimate constants a, b, and c for cost in $/dry tonne, energy input in MJ/dry tonne, and carbon emissions in kg CO2/dry tonne. Variable R is the fraction of above ground biomass removed during harvest and Y is the yield defined as biomass above ground (dry tonne/ha). These functions are supplied to the BIMAT portal and developed specific values for costs, energy input, and emissions on the map. The farm gate cost cost for the stacked bales ranged from $20 per dry tonne for high yielding regions of southwest Edmonton and Ontario to $27 per dry tonne for the eastern Ottawa region, and $31 per dry tonne for low yielding regions of central Saskatchewan. The costs are validated with published custom rates. It is recommended that the next step is to integrate IBSAL and BIMAT codes so the logistics values are generated and shown automatically on the map.
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Smajic, Hasan, and Toni Duspara. "Development and Manufacturing of a Controlled 3D Printed Bionic Hand." TH Wildau Engineering and Natural Sciences Proceedings 1 (May 26, 2021). http://dx.doi.org/10.52825/thwildauensp.v1i.11.

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During a current project, a fully functioning prototype of a 3D printed bionic hand was developed. This paper explains principles such as: bionic hand movement, working rules of sensors and actuators etc. Design of all parts are performed, including the wiring of control system. The project includes two types of sensor control systems for bionic hand. One is with stretch sensors that replicates movement of human hand onto the bionic model. Other type is using machine learning (AI) and a camera. The average amputee cost is $30.000,00 for a new custom-built arm/hand. With the advancement of technology through time, manufacturing processes became cheaper and more accessible. Technical innovation of this project was the fact, that a functional prosthetic hand prototype was built for price lower than $50,00. The prototype does not have all the functions and capabilities as the full priced custom prosthetic hand, but it can replicate altogether the movements as the real device. All the fingers are capable of moving individually, sideways and with the work on the new version, gripping function could be perfected. Further work on materials, could help find the adequate material to increase friction and thusly enhance the grasp strength. The new challenge would involve testing with different kinds of materials to improve the working stability. As it was already unfavorable, this project was mostly based onto the actuation part, or rather the hand itself. Second part of research would involve exploring of different sensor systems. Two control solutions were designed and tested. Next steps would involve neurotransmission sensors, where arm would be controlled using brainwaves as signals that are transformed in movement.
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Lu, Lanchun, Zhilin Hu, Wendy Frankel, Rulong Shen, Wei Chen, Xueliang Pan, John C. Grecula, Mark P. Bloomston, and Mary E. Dillhoff. "Using Endoscopic Optical Coherence Tomography to Detect and Treat Early-Stage Pancreatic Cancers." Frontiers in Oncology 11 (March 15, 2021). http://dx.doi.org/10.3389/fonc.2021.591484.

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We developed a novel technology capable of detecting early-stage pancreatic cancers using high-resolution three-dimensional endoscopic optical coherence tomography (Endo-OCT), and treating them using high dose rate brachytherapy (HDR) under the Endo-OCT image guidance. This technology integrates our custom-built ultra-high resolution endoscopic three-dimensional OCT diagnostic imaging device with a commercial high dose rate brachytherapy system (HDR), resulting in a compact, portable, easy-to-operate, and low-cost Endo-OCT image-guided high dose rate brachytherapy (OCT-IGHDR) system. The system has the dual functions of diagnosis and treatment that can precisely detect and measure the location and size of the early-stage pancreatic cancer or premalignant lesions and then treat them from the inside of the pancreatic duct with an accurate and focused dose while greatly reducing the radiation toxicity to the neighboring tissues and organs. This minimally-invasive treatment technology could avoid the potential complications from surgery and reduces the high operation cost. This technology could also be applied to treat diseases of the esophagus, rectum, bronchus, and other aerodigestive organs that are suitable for use with an endoscopic device. In this article, we describe the concept of this technology and the preliminary experiments that could demonstrate the concept by using this homemade Endo-OCT machine to image the pancreatic duct for diagnosis of early-stage pancreatic cancer or premalignant lesions and to perform Endo-OCT image-guided brachytherapy.
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van Rooij, Ward, Max Dahele, Hanne Nijhuis, Berend J. Slotman, and Wilko F. Verbakel. "Strategies to improve deep learning-based salivary gland segmentation." Radiation Oncology 15, no. 1 (December 2020). http://dx.doi.org/10.1186/s13014-020-01721-1.

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Abstract Background Deep learning-based delineation of organs-at-risk for radiotherapy purposes has been investigated to reduce the time-intensiveness and inter-/intra-observer variability associated with manual delineation. We systematically evaluated ways to improve the performance and reliability of deep learning for organ-at-risk segmentation, with the salivary glands as the paradigm. Improving deep learning performance is clinically relevant with applications ranging from the initial contouring process, to on-line adaptive radiotherapy. Methods Various experiments were designed: increasing the amount of training data (1) with original images, (2) with traditional data augmentation and (3) with domain-specific data augmentation; (4) the influence of data quality was tested by comparing training/testing on clinical versus curated contours, (5) the effect of using several custom cost functions was explored, and (6) patient-specific Hounsfield unit windowing was applied during inference; lastly, (7) the effect of model ensembles was analyzed. Model performance was measured with geometric parameters and model reliability with those parameters’ variance. Results A positive effect was observed from increasing the (1) training set size, (2/3) data augmentation, (6) patient-specific Hounsfield unit windowing and (7) model ensembles. The effects of the strategies on performance diminished when the base model performance was already ‘high’. The effect of combining all beneficial strategies was an increase in average Sørensen–Dice coefficient of about 4% and 3% and a decrease in standard deviation of about 1% and 1% for the submandibular and parotid gland, respectively. Conclusions A subset of the strategies that were investigated provided a positive effect on model performance and reliability. The clinical impact of such strategies would be an expected reduction in post-segmentation editing, which facilitates the adoption of deep learning for autonomous automated salivary gland segmentation.
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"Development of Real Time Power Quality (RTPQ) Analyzer using Lab-VIEW." International Journal of Recent Technology and Engineering 8, no. 3 (September 30, 2019): 458–64. http://dx.doi.org/10.35940/ijrte.c4192.098319.

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Power Quality (PQ) issues and its alleviation techniques are becoming one of the vital research topics, soon after the integration of power electronic devices in power system. The non-linear nature of equipment’s introduces PQ issues such as voltage sag, swell, harmonics, unbalance and transients etc. and cause damage of end user equipment’s. Poor PQ has become a vital issue which affects production and profit of both utilities and consumers. Therefore continuous monitoring and assessment of PQ is essential for finding optimal solution to analyze and mitigate various PQ problems and also maintain quality of power within the prescribed limit. For PQ analysis, it is very difficult to generate power quality events in real life in order to observe the effects or to study their characteristics. Now days, various physical PQ analyzers are available in market to continuously monitor, analyze and record PQ problems. The major drawback of this analyzer is its hardware design, complexity and its cost which limits its usage to many places. Thus online PQ monitoring is a very big challenge for researches. This paper presents modeling and simulation of virtual PQ analyzer using Lab VIEW. Lab VIEW supports a lot of library functions for an acquisition, analysis of data and also the control of instruments. This software is mainly used to model standard real instruments used in laboratories by providing more flexibility. The proposed PQ analyzer is capable of generating, identifying various PQ problems and also measuring PQ parameters RMS Voltage (Vrms), RMS Current (Irms), Total Harmonic Distortion (THD), Real, Reactive and Apparent Power from the test system. Using Lab VIEW software, a complete quality analysis of electric energy can be done online at the user's location. So that the selection of custom power devices and mitigation methods for PQ problems can be done in a perfect manner. This RTPQ analyzer is tested using real time data of hardware are acquired by the construction of test systems such as rectifier with various resistive and inductive loads. ALL PQ parameters measured using proposed PQ Analyzer are also compared with the parameters measured using fluke PQ Analyzer. The response attained has proven that the accuracy and precision of the proposed analyzer can also be used as a very good cost effective tool for online PQ study.
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Tsai, Allen Yi-Lun, Robert McGee, Gillian H. Dean, George W. Haughn, and Shinichiro Sawa. "Seed Mucilage: Biological Functions and Potential Applications in Biotechnology." Plant and Cell Physiology, July 31, 2021. http://dx.doi.org/10.1093/pcp/pcab099.

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Abstract In plants, the diaspore (seed dispersal unit) may include a seed coat and/or pericarp to protect the embryo and assist in dispersion. In many species, the seed coat and/or pericarp secrete a gelatinous mixture of cell wall polysaccharides known as mucilage. In several species, mucilage synthesis, secretion and modification have been studied extensively as model systems for the investigation of plant cell wall structure and function. Despite this, efforts toward understanding the role of mucilage have received less attention. Mucilage has been hypothesized to impact seed dispersal through interaction with soil, protecting the seed in the gut following ingestion by animals or affecting the ability of seeds to sink or float in water. Mucilage has been found to influence seed germination and seedling establishment, most often during abiotic stress, probably by maintaining seed hydration when water is scarce. Finally, mucilage has been documented to mediate interactions with various organisms. Advances in transgenic technology should enable the genetic modification of mucilage structure and function in crop plants. Cells synthesizing mucilage may also be a suitable platform for creating custom polysaccharides or proteins with industrial applications. Thus, in the near future, it is likely that research on seed mucilage will expand well beyond the current focus. Here we summarize our understanding of the biological functions of mucilage and provide an outlook on the future of mucilage research.
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Fajeriadi, Hery, and Dharmono Dharmono. "Population Structure of Siit Rattan (Daemonorops melanochaetes, Blume.) in The Coastal Forest of Tabanio Village, Takisung District, South Kalimantan." Biogenesis: Jurnal Ilmiah Biologi 7, no. 2 (December 29, 2019). http://dx.doi.org/10.24252/bio.v7i2.7647.

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Indonesia as the largest archipelago country in the world has a vast coastline. Various types of ecosystems are scattered on the coast, one of which is coastal forest. One of the functions of coastal forests is as a habitat for flora, including rattan siit (Daemonorops melanochaetes, Blume.). Siit rattan has a fairly stable commercial value on the market. Its strong structure makes it attractive, not only nationally, even internationally. This study aims to determine the population structure of siit rattan in the coastal forest of Tabanio Village, Takisung District, Tanah Laut Regency. Data collection was done with total roaming techniques, namely along the coastal forest with a width of 50 m and a length of one thousand m to the south. The results of the study were analyzed descriptively. The age of siit rattan (Daemonorops melanochaetes, Blume.) includes a wide base pyramid, without any stopping or decaying of growth in the pre-reproductive and reproductive phases. Natality rattan siit went well, and almost did not experience mortality because the coastal forest of Tabanio Village was guarded by custom by the local community. Environmental factors that inhibit the reproductive rate of siit rattan are air temperatures that were too high from the optimal temperature of siit rattan breeding.
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40

Cesarini, Paul. "‘Opening’ the Xbox." M/C Journal 7, no. 3 (July 1, 2004). http://dx.doi.org/10.5204/mcj.2371.

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“As the old technologies become automatic and invisible, we find ourselves more concerned with fighting or embracing what’s new”—Dennis Baron, From Pencils to Pixels: The Stage of Literacy Technologies What constitutes a computer, as we have come to expect it? Are they necessarily monolithic “beige boxes”, connected to computer monitors, sitting on computer desks, located in computer rooms or computer labs? In order for a device to be considered a true computer, does it need to have a keyboard and mouse? If this were 1991 or earlier, our collective perception of what computers are and are not would largely be framed by this “beige box” model: computers are stationary, slab-like, and heavy, and their natural habitats must be in rooms specifically designated for that purpose. In 1992, when Apple introduced the first PowerBook, our perception began to change. Certainly there had been other portable computers prior to that, such as the Osborne 1, but these were more luggable than portable, weighing just slightly less than a typical sewing machine. The PowerBook and subsequent waves of laptops, personal digital assistants (PDAs), and so-called smart phones from numerous other companies have steadily forced us to rethink and redefine what a computer is and is not, how we interact with them, and the manner in which these tools might be used in the classroom. However, this reconceptualization of computers is far from over, and is in fact steadily evolving as new devices are introduced, adopted, and subsequently adapted for uses beyond of their original purpose. Pat Crowe’s Book Reader project, for example, has morphed Nintendo’s GameBoy and GameBoy Advance into a viable electronic book platform, complete with images, sound, and multi-language support. (Crowe, 2003) His goal was to take this existing technology previously framed only within the context of proprietary adolescent entertainment, and repurpose it for open, flexible uses typically associated with learning and literacy. Similar efforts are underway to repurpose Microsoft’s Xbox, perhaps the ultimate symbol of “closed” technology given Microsoft’s propensity for proprietary code, in order to make it a viable platform for Open Source Software (OSS). However, these efforts are not forgone conclusions, and are in fact typical of the ongoing battle over who controls the technology we own in our homes, and how open source solutions are often at odds with a largely proprietary world. In late 2001, Microsoft launched the Xbox with a multimillion dollar publicity drive featuring events, commercials, live models, and statements claiming this new console gaming platform would “change video games the way MTV changed music”. (Chan, 2001) The Xbox launched with the following technical specifications: 733mhz Pentium III 64mb RAM, 8 or 10gb internal hard disk drive CD/DVD ROM drive (speed unknown) Nvidia graphics processor, with HDTV support 4 USB 1.1 ports (adapter required), AC3 audio 10/100 ethernet port, Optional 56k modem (TechTV, 2001) While current computers dwarf these specifications in virtually all areas now, for 2001 these were roughly on par with many desktop systems. The retail price at the time was $299, but steadily dropped to nearly half that with additional price cuts anticipated. Based on these features, the preponderance of “off the shelf” parts and components used, and the relatively reasonable price, numerous programmers quickly became interested in seeing it if was possible to run Linux and additional OSS on the Xbox. In each case, the goal has been similar: exceed the original purpose of the Xbox, to determine if and how well it might be used for basic computing tasks. If these attempts prove to be successful, the Xbox could allow institutions to dramatically increase the student-to-computer ratio in select environments, or allow individuals who could not otherwise afford a computer to instead buy and Xbox, download and install Linux, and use this new device to write, create, and innovate . This drive to literally and metaphorically “open” the Xbox comes from many directions. Such efforts include Andrew Huang’s self-published “Hacking the Xbox” book in which, under the auspices of reverse engineering, Huang analyzes the architecture of the Xbox, detailing step-by-step instructions for flashing the ROM, upgrading the hard drive and/or RAM, and generally prepping the device for use as an information appliance. Additional initiatives include Lindows CEO Michael Robertson’s $200,000 prize to encourage Linux development on the Xbox, and the Xbox Linux Project at SourceForge. What is Linux? Linux is an alternative operating system initially developed in 1991 by Linus Benedict Torvalds. Linux was based off a derivative of the MINIX operating system, which in turn was a derivative of UNIX. (Hasan 2003) Linux is currently available for Intel-based systems that would normally run versions of Windows, PowerPC-based systems that would normally run Apple’s Mac OS, and a host of other handheld, cell phone, or so-called “embedded” systems. Linux distributions are based almost exclusively on open source software, graphic user interfaces, and middleware components. While there are commercial Linux distributions available, these mainly just package the freely available operating system with bundled technical support, manuals, some exclusive or proprietary commercial applications, and related services. Anyone can still download and install numerous Linux distributions at no cost, provided they do not need technical support beyond the community / enthusiast level. Typical Linux distributions come with open source web browsers, word processors and related productivity applications (such as those found in OpenOffice.org), and related tools for accessing email, organizing schedules and contacts, etc. Certain Linux distributions are more or less designed for network administrators, system engineers, and similar “power users” somewhat distanced from that of our students. However, several distributions including Lycoris, Mandrake, LindowsOS, and other are specifically tailored as regular, desktop operating systems, with regular, everyday computer users in mind. As Linux has no draconian “product activation key” method of authentication, or digital rights management-laden features associated with installation and implementation on typical desktop and laptop systems, Linux is becoming an ideal choice both individually and institutionally. It still faces an uphill battle in terms of achieving widespread acceptance as a desktop operating system. As Finnie points out in Desktop Linux Edges Into The Mainstream: “to attract users, you need ease of installation, ease of device configuration, and intuitive, full-featured desktop user controls. It’s all coming, but slowly. With each new version, desktop Linux comes closer to entering the mainstream. It’s anyone’s guess as to when critical mass will be reached, but you can feel the inevitability: There’s pent-up demand for something different.” (Finnie 2003) Linux is already spreading rapidly in numerous capacities, in numerous countries. Linux has “taken hold wherever computer users desire freedom, and wherever there is demand for inexpensive software.” Reports from technology research company IDG indicate that roughly a third of computers in Central and South America run Linux. Several countries, including Mexico, Brazil, and Argentina, have all but mandated that state-owned institutions adopt open source software whenever possible to “give their people the tools and education to compete with the rest of the world.” (Hills 2001) The Goal Less than a year after Microsoft introduced the The Xbox, the Xbox Linux project formed. The Xbox Linux Project has a goal of developing and distributing Linux for the Xbox gaming console, “so that it can be used for many tasks that Microsoft don’t want you to be able to do. ...as a desktop computer, for email and browsing the web from your TV, as a (web) server” (Xbox Linux Project 2002). Since the Linux operating system is open source, meaning it can freely be tinkered with and distributed, those who opt to download and install Linux on their Xbox can do so with relatively little overhead in terms of cost or time. Additionally, Linux itself looks very “windows-like”, making for fairly low learning curve. To help increase overall awareness of this project and assist in diffusing it, the Xbox Linux Project offers step-by-step installation instructions, with the end result being a system capable of using common peripherals such as a keyboard and mouse, scanner, printer, a “webcam and a DVD burner, connected to a VGA monitor; 100% compatible with a standard Linux PC, all PC (USB) hardware and PC software that works with Linux.” (Xbox Linux Project 2002) Such a system could have tremendous potential for technology literacy. Pairing an Xbox with Linux and OpenOffice.org, for example, would provide our students essentially the same capability any of them would expect from a regular desktop computer. They could send and receive email, communicate using instant messaging IRC, or newsgroup clients, and browse Internet sites just as they normally would. In fact, the overall browsing experience for Linux users is substantially better than that for most Windows users. Internet Explorer, the default browser on all systems running Windows-base operating systems, lacks basic features standard in virtually all competing browsers. Native blocking of “pop-up” advertisements is still not yet possible in Internet Explorer without the aid of a third-party utility. Tabbed browsing, which involves the ability to easily open and sort through multiple Web pages in the same window, often with a single mouse click, is also missing from Internet Explorer. The same can be said for a robust download manager, “find as you type”, and a variety of additional features. Mozilla, Netscape, Firefox, Konqueror, and essentially all other OSS browsers for Linux have these features. Of course, most of these browsers are also available for Windows, but Internet Explorer is still considered the standard browser for the platform. If the Xbox Linux Project becomes widely diffused, our students could edit and save Microsoft Word files in OpenOffice.org’s Writer program, and do the same with PowerPoint and Excel files in similar OpenOffice.org components. They could access instructor comments originally created in Microsoft Word documents, and in turn could add their own comments and send the documents back to their instructors. They could even perform many functions not yet capable in Microsoft Office, including saving files in PDF or Flash format without needing Adobe’s Acrobat product or Macromedia’s Flash Studio MX. Additionally, by way of this project, the Xbox can also serve as “a Linux server for HTTP/FTP/SMB/NFS, serving data such as MP3/MPEG4/DivX, or a router, or both; without a monitor or keyboard or mouse connected.” (Xbox Linux Project 2003) In a very real sense, our students could use these inexpensive systems previously framed only within the context of entertainment, for educational purposes typically associated with computer-mediated learning. Problems: Control and Access The existing rhetoric of technological control surrounding current and emerging technologies appears to be stifling many of these efforts before they can even be brought to the public. This rhetoric of control is largely typified by overly-restrictive digital rights management (DRM) schemes antithetical to education, and the Digital Millennium Copyright Act (DMCA). Combined,both are currently being used as technical and legal clubs against these efforts. Microsoft, for example, has taken a dim view of any efforts to adapt the Xbox to Linux. Microsoft CEO Steve Ballmer, who has repeatedly referred to Linux as a cancer and has equated OSS as being un-American, stated, “Given the way the economic model works - and that is a subsidy followed, essentially, by fees for every piece of software sold - our license framework has to do that.” (Becker 2003) Since the Xbox is based on a subsidy model, meaning that Microsoft actually sells the hardware at a loss and instead generates revenue off software sales, Ballmer launched a series of concerted legal attacks against the Xbox Linux Project and similar efforts. In 2002, Nintendo, Sony, and Microsoft simultaneously sued Lik Sang, Inc., a Hong Kong-based company that produces programmable cartridges and “mod chips” for the PlayStation II, Xbox, and Game Cube. Nintendo states that its company alone loses over $650 million each year due to piracy of their console gaming titles, which typically originate in China, Paraguay, and Mexico. (GameIndustry.biz) Currently, many attempts to “mod” the Xbox required the use of such chips. As Lik Sang is one of the only suppliers, initial efforts to adapt the Xbox to Linux slowed considerably. Despite that fact that such chips can still be ordered and shipped here by less conventional means, it does not change that fact that the chips themselves would be illegal in the U.S. due to the anticircumvention clause in the DMCA itself, which is designed specifically to protect any DRM-wrapped content, regardless of context. The Xbox Linux Project then attempted to get Microsoft to officially sanction their efforts. They were not only rebuffed, but Microsoft then opted to hire programmers specifically to create technological countermeasures for the Xbox, to defeat additional attempts at installing OSS on it. Undeterred, the Xbox Linux Project eventually arrived at a method of installing and booting Linux without the use of mod chips, and have taken a more defiant tone now with Microsoft regarding their circumvention efforts. (Lettice 2002) They state that “Microsoft does not want you to use the Xbox as a Linux computer, therefore it has some anti-Linux-protection built in, but it can be circumvented easily, so that an Xbox can be used as what it is: an IBM PC.” (Xbox Linux Project 2003) Problems: Learning Curves and Usability In spite of the difficulties imposed by the combined technological and legal attacks on this project, it has succeeded at infiltrating this closed system with OSS. It has done so beyond the mere prototype level, too, as evidenced by the Xbox Linux Project now having both complete, step-by-step instructions available for users to modify their own Xbox systems, and an alternate plan catering to those who have the interest in modifying their systems, but not the time or technical inclinations. Specifically, this option involves users mailing their Xbox systems to community volunteers within the Xbox Linux Project, and basically having these volunteers perform the necessary software preparation or actually do the full Linux installation for them, free of charge (presumably not including shipping). This particular aspect of the project, dubbed “Users Help Users”, appears to be fairly new. Yet, it already lists over sixty volunteers capable and willing to perform this service, since “Many users don’t have the possibility, expertise or hardware” to perform these modifications. Amazingly enough, in some cases these volunteers are barely out of junior high school. One such volunteer stipulates that those seeking his assistance keep in mind that he is “just 14” and that when performing these modifications he “...will not always be finished by the next day”. (Steil 2003) In addition to this interesting if somewhat unusual level of community-driven support, there are currently several Linux-based options available for the Xbox. The two that are perhaps the most developed are GentooX, which is based of the popular Gentoo Linux distribution, and Ed’s Debian, based off the Debian GNU / Linux distribution. Both Gentoo and Debian are “seasoned” distributions that have been available for some time now, though Daniel Robbins, Chief Architect of Gentoo, refers to the product as actually being a “metadistribution” of Linux, due to its high degree of adaptability and configurability. (Gentoo 2004) Specifically, the Robbins asserts that Gentoo is capable of being “customized for just about any application or need. ...an ideal secure server, development workstation, professional desktop, gaming system, embedded solution or something else—whatever you need it to be.” (Robbins 2004) He further states that the whole point of Gentoo is to provide a better, more usable Linux experience than that found in many other distributions. Robbins states that: “The goal of Gentoo is to design tools and systems that allow a user to do their work pleasantly and efficiently as possible, as they see fit. Our tools should be a joy to use, and should help the user to appreciate the richness of the Linux and free software community, and the flexibility of free software. ...Put another way, the Gentoo philosophy is to create better tools. When a tool is doing its job perfectly, you might not even be very aware of its presence, because it does not interfere and make its presence known, nor does it force you to interact with it when you don’t want it to. The tool serves the user rather than the user serving the tool.” (Robbins 2004) There is also a so-called “live CD” Linux distribution suitable for the Xbox, called dyne:bolic, and an in-progress release of Slackware Linux, as well. According to the Xbox Linux Project, the only difference between the standard releases of these distributions and their Xbox counterparts is that “...the install process – and naturally the bootloader, the kernel and the kernel modules – are all customized for the Xbox.” (Xbox Linux Project, 2003) Of course, even if Gentoo is as user-friendly as Robbins purports, even if the Linux kernel itself has become significantly more robust and efficient, and even if Microsoft again drops the retail price of the Xbox, is this really a feasible solution in the classroom? Does the Xbox Linux Project have an army of 14 year olds willing to modify dozens, perhaps hundreds of these systems for use in secondary schools and higher education? Of course not. If such an institutional rollout were to be undertaken, it would require significant support from not only faculty, but Department Chairs, Deans, IT staff, and quite possible Chief Information Officers. Disk images would need to be customized for each institution to reflect their respective needs, ranging from setting specific home pages on web browsers, to bookmarks, to custom back-up and / or disk re-imaging scripts, to network authentication. This would be no small task. Yet, the steps mentioned above are essentially no different than what would be required of any IT staff when creating a new disk image for a computer lab, be it one for a Windows-based system or a Mac OS X-based one. The primary difference would be Linux itself—nothing more, nothing less. The institutional difficulties in undertaking such an effort would likely be encountered prior to even purchasing a single Xbox, in that they would involve the same difficulties associated with any new hardware or software initiative: staffing, budget, and support. If the institutional in question is either unwilling or unable to address these three factors, it would not matter if the Xbox itself was as free as Linux. An Open Future, or a Closed one? It is unclear how far the Xbox Linux Project will be allowed to go in their efforts to invade an essentially a proprietary system with OSS. Unlike Sony, which has made deliberate steps to commercialize similar efforts for their PlayStation 2 console, Microsoft appears resolute in fighting OSS on the Xbox by any means necessary. They will continue to crack down on any companies selling so-called mod chips, and will continue to employ technological protections to keep the Xbox “closed”. Despite clear evidence to the contrary, in all likelihood Microsoft continue to equate any OSS efforts directed at the Xbox with piracy-related motivations. Additionally, Microsoft’s successor to the Xbox would likely include additional anticircumvention technologies incorporated into it that could set the Xbox Linux Project back by months, years, or could stop it cold. Of course, it is difficult to say with any degree of certainty how this “Xbox 2” (perhaps a more appropriate name might be “Nextbox”) will impact this project. Regardless of how this device evolves, there can be little doubt of the value of Linux, OpenOffice.org, and other OSS to teaching and learning with technology. This value exists not only in terms of price, but in increased freedom from policies and technologies of control. New Linux distributions from Gentoo, Mandrake, Lycoris, Lindows, and other companies are just now starting to focus their efforts on Linux as user-friendly, easy to use desktop operating systems, rather than just server or “techno-geek” environments suitable for advanced programmers and computer operators. While metaphorically opening the Xbox may not be for everyone, and may not be a suitable computing solution for all, I believe we as educators must promote and encourage such efforts whenever possible. I suggest this because I believe we need to exercise our professional influence and ultimately shape the future of technology literacy, either individually as faculty and collectively as departments, colleges, or institutions. Moran and Fitzsimmons-Hunter argue this very point in Writing Teachers, Schools, Access, and Change. One of their fundamental provisions they use to define “access” asserts that there must be a willingness for teachers and students to “fight for the technologies that they need to pursue their goals for their own teaching and learning.” (Taylor / Ward 160) Regardless of whether or not this debate is grounded in the “beige boxes” of the past, or the Xboxes of the present, much is at stake. Private corporations should not be in a position to control the manner in which we use legally-purchased technologies, regardless of whether or not these technologies are then repurposed for literacy uses. I believe the exigency associated with this control, and the ongoing evolution of what is and is not a computer, dictates that we assert ourselves more actively into this discussion. We must take steps to provide our students with the best possible computer-mediated learning experience, however seemingly unorthodox the technological means might be, so that they may think critically, communicate effectively, and participate actively in society and in their future careers. About the Author Paul Cesarini is an Assistant Professor in the Department of Visual Communication & Technology Education, Bowling Green State University, Ohio Email: pcesari@bgnet.bgsu.edu Works Cited http://xbox-linux.sourceforge.net/docs/debian.php>.Baron, Denis. “From Pencils to Pixels: The Stages of Literacy Technologies.” Passions Pedagogies and 21st Century Technologies. Hawisher, Gail E., and Cynthia L. Selfe, Eds. Utah: Utah State University Press, 1999. 15 – 33. Becker, David. “Ballmer: Mod Chips Threaten Xbox”. News.com. 21 Oct 2002. http://news.com.com/2100-1040-962797.php>. http://news.com.com/2100-1040-978957.html?tag=nl>. http://archive.infoworld.com/articles/hn/xml/02/08/13/020813hnchina.xml>. http://www.neoseeker.com/news/story/1062/>. http://www.bookreader.co.uk>.Finni, Scott. “Desktop Linux Edges Into The Mainstream”. TechWeb. 8 Apr 2003. http://www.techweb.com/tech/software/20030408_software. http://www.theregister.co.uk/content/archive/29439.html http://gentoox.shallax.com/. http://ragib.hypermart.net/linux/. http://www.itworld.com/Comp/2362/LWD010424latinlinux/pfindex.html. http://www.xbox-linux.sourceforge.net. http://www.theregister.co.uk/content/archive/27487.html. http://www.theregister.co.uk/content/archive/26078.html. http://www.us.playstation.com/peripherals.aspx?id=SCPH-97047. http://www.techtv.com/extendedplay/reviews/story/0,24330,3356862,00.html. http://www.wired.com/news/business/0,1367,61984,00.html. http://www.gentoo.org/main/en/about.xml http://www.gentoo.org/main/en/philosophy.xml http://techupdate.zdnet.com/techupdate/stories/main/0,14179,2869075,00.html. http://xbox-linux.sourceforge.net/docs/usershelpusers.html http://www.cnn.com/2002/TECH/fun.games/12/16/gamers.liksang/. Citation reference for this article MLA Style Cesarini, Paul. "“Opening” the Xbox" M/C: A Journal of Media and Culture <http://www.media-culture.org.au/0406/08_Cesarini.php>. APA Style Cesarini, P. (2004, Jul1). “Opening” the Xbox. M/C: A Journal of Media and Culture, 7, <http://www.media-culture.org.au/0406/08_Cesarini.php>
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Ryan, Robin, and Uncle Ossie Cruse. "Welcome to the Peoples of the Mountains and the Sea: Evaluating an Inaugural Indigenous Cultural Festival." M/C Journal 22, no. 3 (June 19, 2019). http://dx.doi.org/10.5204/mcj.1535.

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IntroductionFestivals, according to Chris Gibson and John Connell, are like “glue”, temporarily sticking together various stakeholders, economic transactions, and networks (9). Australia’s First Nations peoples see festivals as an opportunity to display cultural vitality (Henry 586), and to challenge a history which has rendered them absent (587). The 2017 Australia Council for the Arts Showcasing Creativity report indicates that performing arts by First Nations peoples are under-represented in Australia’s mainstream venues and festivals (1). Large Aboriginal cultural festivals have long thrived in Australia’s northern half, but have been under-developed in the south. Each regional happening develops a cultural landscape connected to a long and intimate relationship with the natural environment.The Far South East coast and mountainous hinterland of New South Wales is rich in pristine landscapes that ground the Yuin and Monaro Nations to Country as the Monaroo Bobberrer Gadu (Peoples of the Mountains and the Sea). This article highlights cross-sector interaction between Koori and mainstream organisations in producing the Giiyong (Guy-Yoong/Welcoming) Festival. This, the first large festival to be held within the Yuin Nation, took place on Aboriginal-owned land at Jigamy, via Eden, on 22 September 2018. Emerging regional artists joined national headline acts, most notably No Fixed Address (one of the earliest Aboriginal bands to break into the Australian mainstream music industry), and hip-hop artist Baker Boy (Danzal Baker, Young Australian of the Year 2019). The festival followed five years of sustained community preparation by South East Arts in association with Grow the Music, Twofold Aboriginal Corporation, the Eden Local Aboriginal Land Council, and its Elders. We offer dual understandings of the Giiyong Festival: the viewpoints of a male Yuin Elder wedded to an Australian woman of European descent. We acknowledge, and rely upon, key information, statistics, and photographs provided by the staff of South East Arts including Andrew Gray (General Manager), Jasmin Williams (Aboriginal Creative and Cultural Engagement Officer and Giiyong Festival Project Manager), and Kate Howarth (Screen Industry Development Officer). We are also grateful to Wiradjuri woman Alison Simpson (Program Manager at Twofold Aboriginal Corporation) for valuable feedback. As community leaders from First Nations and non-First Nations backgrounds, Simpson and Williams complement each other’s talents for empowering Indigenous communities. They plan a 2020 follow-up event on the basis of the huge success of the 2018 festival.The case study is informed by our personal involvement with community. Since the general population barely comprehends the number and diversity of Australia’s Indigenous ‘nations’, the burgeoning Indigenous festival movement encourages First Nations and non-First Nations peoples alike to openly and confidently refer to the places they live in according to Indigenous names, practices, histories, and knowledge. Consequently, in the mental image of a map of the island-continent, the straight lines and names of state borders fade as the colours of the Indigenous ‘Countries’ (represented by David Horton’s wall map of 1996) come to the foreground. We reason that, in terms of ‘regionality,’ the festival’s expressions of “the agency of country” (Slater 141) differ vastly from the centre-periphery structure and logic of the Australian colony. There is no fixed centre to the mutual exchange of knowledge, culture, and experience in Aboriginal Australia. The broader implication of this article is that Indigenous cultural festivals allow First Nations peoples cultures—in moments of time—to assume precedence, that is to ‘stitch’ back together the notion of a continent made up of hundreds of countries, as against the exploitative structure of ‘hub and region’ colonial Australia.Festival Concepts and ContextsHoward Becker observed that cultural production results from an interplay between the person of the artist and a multitude of support personnel whose work is not frequently studied: “It is through this network of cooperation that the art work we eventually see or hear comes to be and continues to be” (1). In assisting arts and culture throughout the Bega Valley, Eurobodalla, and Snowy Monaro, South East Arts delivers positive achievements in the Aboriginal arts and cultural sector. Their outcomes are significant in the light of the dispossession, segregation, and discrimination experienced by Aboriginal Australians. Michael Young, assisted by Indigenous authors Ellen Mundy and Debbie Mundy, recorded how Delegate Reserve residents relocating to the coast were faced with having their lives controlled by a Wallaga Lake Reserve manager or with life on the fringes of the towns in shacks (2–3). But as discovered in the records, “their retention of traditional beliefs, values and customs, reveal that the accommodation they were forced to make with the Europeans did not mean they had surrendered. The proof of this is the persistence of their belief in the value of their culture” (3–4). The goal of the Twofold Aboriginal Corporation is to create an inclusive place where Aboriginal people of the Twofold Bay Region can be proud of their heritage, connect with the local economy, and create a real future for their children. When Simpson told Williams of the Twofold Aboriginal Corporation’s and Eden Local Aboriginal Land Council’s dream of housing a large cultural festival at Jigamy, Williams rigorously consulted local Indigenous organisations to build a shared sense of community ownership of the event. She promoted the festival as “a rare opportunity in our region to learn about Aboriginal culture and have access to a huge program of Aboriginal musicians, dancers, visual artists, authors, academics, storytellers, cooks, poets, creative producers, and films” (McKnight).‘Uncle Ossie’ Cruse of Eden envisaged that the welcoming event would enliven the longstanding caring and sharing ethos of the Yuin-Monaro people. Uncle Ossie was instrumental in establishing Jigamy’s majestic Monaroo Bobberrer Gudu Keeping Place with the Eden Local Aboriginal Land Council in 1994. Built brick by brick by Indigenous workers, it is a centre for the teaching and celebration of Aboriginal culture, and for the preservation of artefacts. It represents the local community's determination to find their own solutions for “bridging the gap” by creating education and employment opportunities. The centre is also the gateway to the Bundian Way, the first Aboriginal pathway to be listed on the NSW State Heritage Register. Festival Lead-Up EventsEden’s Indigenous students learn a revived South Coast language at Primary and Secondary School. In 2015, Uncle Ossie vitally informed their input into The Black Ducks, a hip-hop song filmed in Eden by Desert Pea Media. A notable event boosting Koori musical socialisation was a Giiyong Grow the Music spectacle performed at Jigamy on 28 October 2017. Grow the Music—co-founded by Lizzy Rutten and Emily White—specialises in mentoring Indigenous artists in remote areas using digital recording equipment. Eden Marine High School students co-directed the film Scars as part of a programme of events with South East Arts and the Giiyong Festival 2018. The Eden Place Project and Campbell Page also create links between in- and out-of-school activities. Eden’s Indigenous students thus perform confidently at NAIDOC Week celebrations and at various festivals. Preparation and PersonnelAn early decision was made to allow free entry to the Giiyong Festival in order to attract a maximum number of Indigenous families. The prospect necessitated in-kind support from Twofold Aboriginal Corporation staff. They galvanised over 100 volunteers to enhance the unique features of Jigamy, while Uncle Ossie slashed fields of bushes to prepare copious parking space. The festival site was spatially focused around two large stages dedicated to the memory of two strong supporters of cultural creativity: Aunty Doris Kirby, and Aunty Liddy Stewart (Image 1). Image 1: Uncle Ossie Cruse Welcomes Festival-Goers to Country on the Aunty Liddy Stewart Stage. Image Credit: David Rogers for South East Arts, Reproduction Courtesy of South East Arts.Cultural festivals are peaceful weapons in a continuing ontological political contest (Slater 144). In a panel discussion, Uncle Ossie explained and defended the Makarrata: the call for a First Nations Voice to be enshrined in the Constitution.Williams also contracted artists with a view to capturing the past and present achievements of Aboriginal music. Apart from her brilliant centrepiece acts No Fixed Address and Baker Boy, she attracted Pitjantjatjara singer Frank Yamma (Image 2), Yorta Yorta singer/songwriter Benny Walker, the Central Desert Docker River Band, and Jessie Lloyd’s nostalgic Mission Songs Project. These stellar acts were joined by Wallaga Lake performers Robbie Bundle, Warren Foster, and Alison Walker as well as Nathan Lygon (Eden), Chelsy Atkins (Pambula), Gabadoo (Bermagui), and Drifting Doolgahls (Nowra). Stage presentations were technologically transformed by the live broadcast of acts on large screens surrounding the platforms. Image 2: Singer-Songwriter Frank Yamma Performs at Giiyong Festival 2018. Image Credit: David Rogers for South East Arts, Reproduction Courtesy of South East Arts.Giiyong Music and Dance Music and dance form the staple components of Indigenous festivals: a reflection on the cultural strength of ancient ceremony. Hundreds of Yuin-Monaro people once attended great corroborees on Mumbulla Mountain (Horton 1235), and oral history recorded by Janet Mathews evidences ceremonies at Fishy Flats, Eden, in the 1850s. Today’s highly regarded community musicians and dancers perform the social arrangements of direct communication, sometimes including their children on stage as apprentices. But artists are still negotiating the power structures through which they experience belonging and detachment in the representation of their musical identity.Youth gain positive identities from participating alongside national headline acts—a form of learning that propels talented individuals into performing careers. The One Mob Dreaming Choir of Koori students from three local schools were a popular feature (Image 3), as were Eden Marine student soloists Nikai Stewart, and Nikea Brooks. Grow the Music in particular has enabled these youngsters to exhibit the roots of their culture in a deep and touching way that contributes to their life-long learning and development. Image 3: The One Mob Dreaming Choir, Directed by Corinne Gibbons (L) and Chelsy Atkins (R). Image Credit: David Rogers for South East Arts, Reproduction Courtesy of South East Arts. Brydie-Leigh Bartleet describes how discourses of pride emerge when Indigenous Australian youth participate in hip-hop. At the Giiyong Festival the relationship between musical expression, cultural representation, and political positioning shone through the songs of Baker Boy and Gabadoo (Image 4). Channelling emotions into song, they led young audiences to engage with contemporary themes of Indigeneity. The drones launched above the carpark established a numerical figure close on 6,000 attendees, a third of whom were Indigenous. Extra teenagers arrived in time for Baker Boy’s evening performance (Williams), revealing the typical youthful audience composition associated with the hip-hop craze (Image 5).Image 4: Bermagui Resident Gabadoo Performs Hip-Hop at the Giiyong Festival. Image Credit: David Rogers for South East Arts, Reproduced Courtesy South East Arts.Image 5: A Youthful Audience Enjoys Baker Boy’s Giiyong Festival Performance. Image Credit: David Rogers for South East Arts, Reproduced Courtesy South East Arts.Wallaga Lake’s traditional Gulaga Dancers were joined by Bermagui’s Gadhu Dancers, Eden’s Duurunu Miru Dancers, and Narooma’s Djaadjawan Dancers. Sharon Mason founded Djaadjawan Dancers in 2015. Their cultural practice connects to the environment and Mingagia (Mother Earth). At their festival tent, dancers explained how they gather natural resources from Walbanja Country to hand-make traditional dance outfits, accessories, and craft. They collect nuts, seeds, and bark from the bush, body paint from ancient ochre pits, shells from beaches, and bird feathers from fresh roadkill. Duurunu Miru dancer/didjeriduist Nathan Lygon elaborates on the functions of the Far South East Coast dance performance tradition:Dance provides us with a platform, an opportunity to share our stories, our culture, and our way of being. It demonstrates a beautiful positivity—a feeling of connection, celebration, and inclusion. The community needs it. And our young people need a ‘space’ in which they can grow into the knowledge and practices of their culture. The festival also helped the wider community to learn more about these dimensions. (n.p.)While music and dance were at the heart of the festival, other traditional skills were included, for example the exhibitions mounted inside the Keeping Place featured a large number of visual artists. Traditional bush cooking took place near Lake Pambula, and yarn-ups, poetry, and readings were featured throughout the day. Cultural demonstrations in the Bunaan Ring (the Yuin name for a corroboree circle) included ‘Gum Leaf Playing.’ Robin Ryan explained how the Yuin’s use of cultural elements to entertain settlers (Cameron 79) led to the formation of the Wallaga Lake Gum Leaf Band. As the local custodian of this unique musical practice, Uncle Ossie performed items and conducted a workshop for numerous adults and children. Festival Feedback and Future PlanningThe Giiyong Festival gained huge Indigenous cultural capital. Feedback gleaned from artists, sponsors, supporters, volunteers, and audiences reflected on how—from the moment the day began—the spirit of so many performers and consumers gathered in one place took over. The festival’s success depended on its reception, for as Myers suggests: “It is the audience who create the response to performance and if the right chemistry is achieved the performers react and excel in their presentation” (59). The Bega District News, of 24 September 2018, described the “incredibly beautiful event” (n.p.), while Simpson enthused to the authors:I believe that the amount of people who came through the gates to attend the Giiyong Festival was a testament to the wider need and want for Aboriginal culture. Having almost double the population of Eden attend also highlights that this event was long overdue. (n.p.)Williams reported that the whole festival was “a giant exercise in the breaking down of walls. Some signed contracts for the first time, and all met their contracts professionally. National artists Baker Boy and No Fixed Address now keep in touch with us regularly” (Williams). Williams also expressed her delight that local artists are performing further afield this year, and that an awareness, recognition, and economic impact has been created for Jigamy, the Giiyong Festival, and Eden respectively:We believe that not only celebrating, but elevating these artists and Aboriginal culture, is one of the most important things South East Arts can do for the overall arts sector in the region. This work benefits artists, the economy and cultural tourism of the region. Most importantly it feeds our collective spirit, educates us, and creates a much richer place to live. (Giiyong Festival Report 1)Howarth received 150 responses to her post-event survey. All respondents felt welcome, included, and willing to attend another festival. One commented, “not even one piece of rubbish on the ground.” Vanessa Milton, ABC Open Producer for South East NSW, wrote: “Down to the tiniest detail it was so obvious that you understood the community, the audience, the performers and how to bring everyone together. What a coup to pull off this event, and what a gift to our region” (Giiyong Festival Report 4).The total running cost for the event was $257,533, including $209,606 in government grants from local, state, and federal agencies. Major donor Create NSW Regional Partnerships funded over $100,000, and State Aboriginal Affairs gave $6,000. Key corporate sponsors included Bendigo Bank, Snowy Hydro and Waterway Constructions, Local Land Services Bega, and the Eden Fisherman’s Club. Funding covered artists’ fees, staging, the hiring of toilets, and multiple generators, including delivery costs. South East Arts were satisfied with the funding amount: each time a new donation arrived they were able to invite more performers (Giiyong Festival Report 2; Gray; Williams). South East Arts now need to prove they have the leadership capacity, financial self-sufficiency, and material resources to produce another festival. They are planning 2020 will be similar to 2018, provided Twofold Aboriginal Corporation can provide extra support. Since South East Arts exists to service a wider area of NSW, they envisage that by 2024, they would hand over the festival to Twofold Aboriginal Corporation (Gray; Williams). Forthcoming festivals will not rotate around other venues because the Giiyong concept was developed Indigenously at Jigamy, and “Jigamy has the vibe” (Williams). Uncle Ossie insists that the Yuin-Monaro feel comfortable being connected to Country that once had a traditional campsite on the east side. Evaluation and ConclusionAlthough ostensibly intended for entertainment, large Aboriginal festivals significantly benefit the educational, political, and socio-economic landscape of contemporary Indigenous life. The cultural outpourings and dissemination of knowledges at the 2018 Giiyong Festival testified to the resilience of the Yuin-Monaro people. In contributing to the processes of Reconciliation and Recognition, the event privileged the performing arts as a peaceful—yet powerful truth-telling means—for dealing with the state. Performers representing the cultures of far-flung ancestral lands contributed to the reimagining of a First Nations people’s map representing hundreds of 'Countries.’It would be beneficial for the Far South East region to perpetuate the Giiyong Festival. It energised all those involved. But it took years of preparation and a vast network of cooperating people to create the feeling which made the 2018 festival unique. Uncle Ossie now sees aspects of the old sharing culture of his people springing back to life to mould the quality of life for families. Furthermore, the popular arts cultures are enhancing the quality of life for Eden youth. As the cross-sector efforts of stakeholders and volunteers so amply proved, a family-friendly, drug and alcohol-free event of the magnitude of the Giiyong Festival injects new growth into an Aboriginal arts industry designed for the future creative landscape of the whole South East region. AcknowledgementsMany thanks to Andrew Gray and Jasmin Williams for supplying a copy of the 2018 Giiyong Festival Report. We appreciated prompt responses to queries from Jasmin Williams, and from our editor Rachel Franks. We are humbly indebted to our two reviewers for their expert direction.ReferencesAustralian Government. Showcasing Creativity: Programming and Presenting First Nations Performing Arts. Australia Council for the Arts Report, 8 Mar. 2017. 20 May 2019 <https://tnn.org.au/2017/03/showcasing-creativity-programming-and-presenting-first-nations-performing-arts-australia-council/>.Bartleet, Brydie-Leigh. “‘Pride in Self, Pride in Community, Pride in Culture’: The Role of Stylin’ Up in Fostering Indigenous Community and Identity.” The Festivalization of Culture. Eds. Andy Bennett, Jodie Taylor, and Ian Woodward. New York: Routledge, 2014.Becker, Howard S. Art Worlds. 25th anniversary edition. Berkeley: U of California P, 2008.Brown, Bill. “The Monaroo Bubberer [Bobberer] Gudu Keeping Place: A Symbol of Aboriginal Self-determination.” ABC South East NSW, 9 Jul. 2015. 20 May 2019 <http://www.abc.net.au/local/photos/2015/07/09/4270480.htm>.Cameron, Stuart. "An Investigation of the History of the Aborigines of the Far South Coast of NSW in the 19th Century." PhD Thesis. Canberra: Australian National U, 1987. Desert Pea Media. The Black Ducks “People of the Mountains and the Sea.” <https://www.youtube.com/watch?v=8fbJNHAdbkg>.“Festival Fanfare.” Eden Magnet 28 June 2018. 1 Mar. 2019 <edenmagnet.com.au>.Gibson, Chris, and John Connell. Music Festivals and Regional Development in Australia. Aldershot: Ashgate, 2012.Gray, Andrew. Personal Communication, 28 Mar. 2019.Henry, Rosita. “Festivals.” The Oxford Companion to Aboriginal Art and Culture. Eds. Syvia Kleinert and Margot Neale. South Melbourne: Oxford UP, 586–87.Horton, David R. “Yuin.” Encyclopaedia of Aboriginal Australia. Ed. David R. Horton. Canberra: Aboriginal Studies Press, 1994.———. Aboriginal Australia Wall Map Compiled by David Horton. Aboriginal Studies Press, 1996.Lygon, Nathan. Personal Communication, 20 May 2019.Mathews, Janet. Albert Thomas Mentions the Leaf Bands That Used to Play in the Old Days. Cassette recorded at Wreck Bay, NSW on 9 July 1964 for the Australian Institute of Aboriginal and Torres Strait Islanders (AIATSIS). LAA1013. McKnight, Albert. “Giiyong Festival the First of Its Kind in Yuin Nation.” Bega District News 17 Sep. 2018. 1 Mar. 2019 <https://www.begadistrictnews.com.au/story/5649214/giiyong-festival-the-first-of-its-kind-in-yuin-nation/?cs=7523#slide=2>. ———. “Giiyong Festival Celebrates Diverse, Enduring Cultures.” Bega District News 24 Sep. 2018. 1 Mar. 2019 <https://www.begadistrictnews.com.au/story/5662590/giiyong-festival-celebrates-diverse-enduring-cultures-photos-videos/>.Myers, Doug. “The Fifth Festival of Pacific Arts.” Australian Aboriginal Studies 1 (1989): 59–62.Simpson, Alison. Personal Communication, 9 Apr. 2019.Slater, Lisa. “Sovereign Bodies: Australian Indigenous Cultural Festivals and Flourishing Lifeworlds.” The Festivalization of Culture. Eds. Andy Bennett, Jodie Taylor, and Ian Woodward. London: Ashgate, 2014. 131–46.South East Arts. "Giiyong Festival Report." Bega: South East Arts, 2018.———. Giiyong Grow the Music. Poster for Event Produced on Saturday, 28 Oct. 2017. Bega: South East Arts, 2017.Williams, Jasmin. Personal Communication, 28 Mar. 2019.Young, Michael, with Ellen, and Debbie Mundy. The Aboriginal People of the Monaro: A Documentary History. Sydney: NSW National Parks and Wildlife Service, 2000.
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Burgess, Jean, and Axel Bruns. "Twitter Archives and the Challenges of "Big Social Data" for Media and Communication Research." M/C Journal 15, no. 5 (October 11, 2012). http://dx.doi.org/10.5204/mcj.561.

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Lists and Social MediaLists have long been an ordering mechanism for computer-mediated social interaction. While far from being the first such mechanism, blogrolls offered an opportunity for bloggers to provide a list of their peers; the present generation of social media environments similarly provide lists of friends and followers. Where blogrolls and other earlier lists may have been user-generated, the social media lists of today are more likely to have been produced by the platforms themselves, and are of intrinsic value to the platform providers at least as much as to the users themselves; both Facebook and Twitter have highlighted the importance of their respective “social graphs” (their databases of user connections) as fundamental elements of their fledgling business models. This represents what Mejias describes as “nodocentrism,” which “renders all human interaction in terms of network dynamics (not just any network, but a digital network with a profit-driven infrastructure).”The communicative content of social media spaces is also frequently rendered in the form of lists. Famously, blogs are defined in the first place by their reverse-chronological listing of posts (Walker Rettberg), but the same is true for current social media platforms: Twitter, Facebook, and other social media platforms are inherently centred around an infinite, constantly updated and extended list of posts made by individual users and their connections.The concept of the list implies a certain degree of order, and the orderliness of content lists as provided through the latest generation of centralised social media platforms has also led to the development of more comprehensive and powerful, commercial as well as scholarly, research approaches to the study of social media. Using the example of Twitter, this article discusses the challenges of such “big data” research as it draws on the content lists provided by proprietary social media platforms.Twitter Archives for ResearchTwitter is a particularly useful source of social media data: using the Twitter API (the Application Programming Interface, which provides structured access to communication data in standardised formats) it is possible, with a little effort and sufficient technical resources, for researchers to gather very large archives of public tweets concerned with a particular topic, theme or event. Essentially, the API delivers very long lists of hundreds, thousands, or millions of tweets, and metadata about those tweets; such data can then be sliced, diced and visualised in a wide range of ways, in order to understand the dynamics of social media communication. Such research is frequently oriented around pre-existing research questions, but is typically conducted at unprecedented scale. The projects of media and communication researchers such as Papacharissi and de Fatima Oliveira, Wood and Baughman, or Lotan, et al.—to name just a handful of recent examples—rely fundamentally on Twitter datasets which now routinely comprise millions of tweets and associated metadata, collected according to a wide range of criteria. What is common to all such cases, however, is the need to make new methodological choices in the processing and analysis of such large datasets on mediated social interaction.Our own work is broadly concerned with understanding the role of social media in the contemporary media ecology, with a focus on the formation and dynamics of interest- and issues-based publics. We have mined and analysed large archives of Twitter data to understand contemporary crisis communication (Bruns et al), the role of social media in elections (Burgess and Bruns), and the nature of contemporary audience engagement with television entertainment and news media (Harrington, Highfield, and Bruns). Using a custom installation of the open source Twitter archiving tool yourTwapperkeeper, we capture and archive all the available tweets (and their associated metadata) containing a specified keyword (like “Olympics” or “dubstep”), name (Gillard, Bieber, Obama) or hashtag (#ausvotes, #royalwedding, #qldfloods). In their simplest form, such Twitter archives are commonly stored as delimited (e.g. comma- or tab-separated) text files, with each of the following values in a separate column: text: contents of the tweet itself, in 140 characters or less to_user_id: numerical ID of the tweet recipient (for @replies) from_user: screen name of the tweet sender id: numerical ID of the tweet itself from_user_id: numerical ID of the tweet sender iso_language_code: code (e.g. en, de, fr, ...) of the sender’s default language source: client software used to tweet (e.g. Web, Tweetdeck, ...) profile_image_url: URL of the tweet sender’s profile picture geo_type: format of the sender’s geographical coordinates geo_coordinates_0: first element of the geographical coordinates geo_coordinates_1: second element of the geographical coordinates created_at: tweet timestamp in human-readable format time: tweet timestamp as a numerical Unix timestampIn order to process the data, we typically run a number of our own scripts (written in the programming language Gawk) which manipulate or filter the records in various ways, and apply a series of temporal, qualitative and categorical metrics to the data, enabling us to discern patterns of activity over time, as well as to identify topics and themes, key actors, and the relations among them; in some circumstances we may also undertake further processes of filtering and close textual analysis of the content of the tweets. Network analysis (of the relationships among actors in a discussion; or among key themes) is undertaken using the open source application Gephi. While a detailed methodological discussion is beyond the scope of this article, further details and examples of our methods and tools for data analysis and visualisation, including copies of our Gawk scripts, are available on our comprehensive project website, Mapping Online Publics.In this article, we reflect on the technical, epistemological and political challenges of such uses of large-scale Twitter archives within media and communication studies research, positioning this work in the context of the phenomenon that Lev Manovich has called “big social data.” In doing so, we recognise that our empirical work on Twitter is concerned with a complex research site that is itself shaped by a complex range of human and non-human actors, within a dynamic, indeed volatile media ecology (Fuller), and using data collection and analysis methods that are in themselves deeply embedded in this ecology. “Big Social Data”As Manovich’s term implies, the Big Data paradigm has recently arrived in media, communication and cultural studies—significantly later than it did in the hard sciences, in more traditionally computational branches of social science, and perhaps even in the first wave of digital humanities research (which largely applied computational methods to pre-existing, historical “big data” corpora)—and this shift has been provoked in large part by the dramatic quantitative growth and apparently increased cultural importance of social media—hence, “big social data.” As Manovich puts it: For the first time, we can follow [the] imaginations, opinions, ideas, and feelings of hundreds of millions of people. We can see the images and the videos they create and comment on, monitor the conversations they are engaged in, read their blog posts and tweets, navigate their maps, listen to their track lists, and follow their trajectories in physical space. (Manovich 461) This moment has arrived in media, communication and cultural studies because of the increased scale of social media participation and the textual traces that this participation leaves behind—allowing researchers, equipped with digital tools and methods, to “study social and cultural processes and dynamics in new ways” (Manovich 461). However, and crucially for our purposes in this article, many of these scholarly possibilities would remain latent if it were not for the widespread availability of Open APIs for social software (including social media) platforms. APIs are technical specifications of how one software application should access another, thereby allowing the embedding or cross-publishing of social content across Websites (so that your tweets can appear in your Facebook timeline, for example), or allowing third-party developers to build additional applications on social media platforms (like the Twitter user ranking service Klout), while also allowing platform owners to impose de facto regulation on such third-party uses via the same code. While platform providers do not necessarily have scholarship in mind, the data access affordances of APIs are also available for research purposes. As Manovich notes, until very recently almost all truly “big data” approaches to social media research had been undertaken by computer scientists (464). But as part of a broader “computational turn” in the digital humanities (Berry), and because of the increased availability to non-specialists of data access and analysis tools, media, communication and cultural studies scholars are beginning to catch up. Many of the new, large-scale research projects examining the societal uses and impacts of social media—including our own—which have been initiated by various media, communication, and cultural studies research leaders around the world have begun their work by taking stock of, and often substantially extending through new development, the range of available tools and methods for data analysis. The research infrastructure developed by such projects, therefore, now reflects their own disciplinary backgrounds at least as much as it does the fundamental principles of computer science. In turn, such new and often experimental tools and methods necessarily also provoke new epistemological and methodological challenges. The Twitter API and Twitter ArchivesThe Open API was a key aspect of mid-2000s ideas about the value of the open Web and “Web 2.0” business models (O’Reilly), emphasising the open, cross-platform sharing of content as well as promoting innovation at the margins via third-party application development—and it was in this ideological environment that the microblogging service Twitter launched and experienced rapid growth in popularity among users and developers alike. As José van Dijck cogently argues, however, a complex interplay of technical, economic and social dynamics has seen Twitter shift from a relatively open, ad hoc and user-centred platform toward a more formalised media business: For Twitter, the shift from being primarily a conversational communication tool to being a global, ad-supported followers tool took place in a relatively short time span. This shift did not simply result from the owner’s choice for a distinct business model or from the company’s decision to change hardware features. Instead, the proliferation of Twitter as a tool has been a complex process in which technological adjustments are intricately intertwined with changes in user base, transformations of content and choices for revenue models. (van Dijck 343)The specifications of Twitter’s API, as well as the written guidelines for its use by developers (Twitter, “Developer Rules”) are an excellent example of these “technological adjustments” and the ways they are deeply interwined with Twitter’s search for a viable revenue model. These changes show how the apparent semantic openness or “interpretive flexibility” of the term “platform” allows its meaning to be reshaped over time as the business models of platform owners change (Gillespie).The release of the API was first announced on the Twitter blog in September 2006 (Stone), not long after the service’s launch but after some popular third-party applications (like a mashup of Twitter with Google Maps creating a dynamic display of recently posted tweets around the world) had already been developed. Since then Twitter has seen a flourishing of what the company itself referred to as the “Twitter ecosystem” (Twitter, “Developer Rules”), including third-party developed client software (like Twitterific and TweetDeck), institutional use cases (such as large-scale social media visualisations of the London Riots in The Guardian), and parasitic business models (including social media metrics services like HootSuite and Klout).While the history of Twitter’s API rules and related regulatory instruments (such as its Developer Rules of the Road and Terms of Use) has many twists and turns, there have been two particularly important recent controversies around data access and control. First, the company locked out developers and researchers from direct “firehose” (very high volume) access to the Twitter feed; this was accompanied by a crackdown on free and public Twitter archiving services like 140Kit and the Web version of Twapperkeeper (Sample), and coincided with the establishment of what was at the time a monopoly content licensing arrangement between Twitter and Gnip, a company which charges commercial rates for high-volume API access to tweets (and content from other social media platforms). A second wave of controversy among the developer community occurred in August 2012 in response to Twitter’s release of its latest API rules (Sippey), which introduce further, significant limits to API use and usability in certain circumstances. In essence, the result of these changes to the Twitter API rules, announced without meaningful consultation with the developer community which created the Twitter ecosystem, is a forced rebalancing of development activities: on the one hand, Twitter is explicitly seeking to “limit” (Sippey) the further development of API-based third-party tools which support “consumer engagement activities” (such as end-user clients), in order to boost the use of its own end-user interfaces; on the other hand, it aims to “encourage” the further development of “consumer analytics” and “business analytics” as well as “business engagement” tools. Implicit in these changes is a repositioning of Twitter users (increasingly as content consumers rather than active communicators), but also of commercial and academic researchers investigating the uses of Twitter (as providing a narrow range of existing Twitter “analytics” rather than engaging in a more comprehensive investigation both of how Twitter is used, and of how such uses continue to evolve). The changes represent an attempt by the company to cement a certain, commercially viable and valuable, vision of how Twitter should be used (and analysed), and to prevent or at least delay further evolution beyond this desired stage. Although such attempts to “freeze” development may well be in vain, given the considerable, documented role which the Twitter user base has historically played in exploring new and unforeseen uses of Twitter (Bruns), it undermines scholarly research efforts to examine actual Twitter uses at least temporarily—meaning that researchers are increasingly forced to invest time and resources in finding workarounds for the new restrictions imposed by the Twitter API.Technical, Political, and Epistemological IssuesIn their recent article “Critical Questions for Big Data,” danah boyd and Kate Crawford have drawn our attention to the limitations, politics and ethics of big data approaches in the social sciences more broadly, but also touching on social media as a particularly prevalent site of social datamining. In response, we offer the following complementary points specifically related to data-driven Twitter research relying on archives of tweets gathered using the Twitter API.First, somewhat differently from most digital humanities (where researchers often begin with a large pre-existing textual corpus), in the case of Twitter research we have no access to an original set of texts—we can access only what Twitter’s proprietary and frequently changing API will provide. The tools Twitter researchers use rely on various combinations of parts of the Twitter API—or, more accurately, the various Twitter APIs (particularly the Search and Streaming APIs). As discussed above, of course, in providing an API, Twitter is driven not by scholarly concerns but by an attempt to serve a range of potentially value-generating end-users—particularly those with whom Twitter can create business-to-business relationships, as in their recent exclusive partnership with NBC in covering the 2012 London Olympics.The following section from Twitter’s own developer FAQ highlights the potential conflicts between the business-case usage scenarios under which the APIs are provided and the actual uses to which they are often put by academic researchers or other dataminers:Twitter’s search is optimized to serve relevant tweets to end-users in response to direct, non-recurring queries such as #hashtags, URLs, domains, and keywords. The Search API (which also powers Twitter’s search widget) is an interface to this search engine. Our search service is not meant to be an exhaustive archive of public tweets and not all tweets are indexed or returned. Some results are refined to better combat spam and increase relevance. Due to capacity constraints, the index currently only covers about a week’s worth of tweets. (Twitter, “Frequently Asked Questions”)Because external researchers do not have access to the full, “raw” data, against which we could compare the retrieved archives which we use in our later analyses, and because our data access regimes rely so heavily on Twitter’s APIs—each with its technical quirks and limitations—it is impossible for us to say with any certainty that we are capturing a complete archive or even a “representative” sample (whatever “representative” might mean in a data-driven, textualist paradigm). In other words, the “lists” of tweets delivered to us on the basis of a keyword search are not necessarily complete; and there is no way of knowing how incomplete they are. The total yield of even the most robust capture system (using the Streaming API and not relying only on Search) depends on a number of variables: rate limiting, the filtering and spam-limiting functions of Twitter’s search algorithm, server outages and so on; further, because Twitter prohibits the sharing of data sets it is difficult to compare notes with other research teams.In terms of epistemology, too, the primary reliance on large datasets produces a new mode of scholarship in media, communication and cultural studies: what emerges is a form of data-driven research which tends towards abductive reasoning; in doing so, it highlights tensions between the traditional research questions in discourse or text-based disciplines like media and communication studies, and the assumptions and modes of pattern recognition that are required when working from the “inside out” of a corpus, rather than from the outside in (for an extended discussion of these epistemological issues in the digital humanities more generally, see Dixon).Finally, even the heuristics of our analyses of Twitter datasets are mediated by the API: the datapoints that are hardwired into the data naturally become the most salient, further shaping the type of analysis that can be done. For example, a common process in our research is to use the syntax of tweets to categorise it as one of the following types of activity: original tweets: tweets which are neither @reply nor retweetretweets: tweets which contain RT @user… (or similar) unedited retweets: retweets which start with RT @user… edited retweets: retweets do not start with RT @user…genuine @replies: tweets which contain @user, but are not retweetsURL sharing: tweets which contain URLs(Retweets which are made using the Twitter “retweet button,” resulting in verbatim passing-along without the RT @user syntax or an opportunity to add further comment during the retweet process, form yet another category, which cannot be tracked particularly effectively using the Twitter API.)These categories are driven by the textual and technical markers of specific kinds of interactions that are built into the syntax of Twitter itself (@replies or @mentions, RTs); and specific modes of referentiality (URLs). All of them focus on (and thereby tend to privilege) more informational modes of communication, rather than the ephemeral, affective, or ambiently intimate uses of Twitter that can be illuminated more easily using ethnographic approaches: approaches that can actually focus on the individual user, their social contexts, and the broader cultural context of the traces they leave on Twitter. ConclusionsIn this article we have described and reflected on some of the sociotechnical, political and economic aspects of the lists of tweets—the structured Twitter data upon which our research relies—which may be gathered using the Twitter API. As we have argued elsewhere (Bruns and Burgess)—and, hopefully, have begun to demonstrate in this paper—media and communication studies scholars who are actually engaged in using computational methods are well-positioned to contribute to both the methodological advances we highlight at the beginning of this paper and the political debates around computational methods in the “big social data” moment on which the discussion in the second part of the paper focusses. One pressing issue in the area of methodology is to build on current advances to bring together large-scale datamining approaches with ethnographic and other qualitative approaches, especially including close textual analysis. More broadly, in engaging with the “big social data” moment there is a pressing need for the development of code literacy in media, communication and cultural studies. In the first place, such literacy has important instrumental uses: as Manovich argues, much big data research in the humanities requires costly and time-consuming (and sometimes alienating) partnerships with technical experts (typically, computer scientists), because the free tools available to non-programmers are still limited in utility in comparison to what can be achieved using raw data and original code (Manovich, 472).But code literacy is also a requirement of scholarly rigour in the context of what David Berry calls the “computational turn,” representing a “third wave” of Digital Humanities. Berry suggests code and software might increasingly become in themselves objects of, and not only tools for, research: I suggest that we introduce a humanistic approach to the subject of computer code, paying attention to the wider aspects of code and software, and connecting them to the materiality of this growing digital world. With this in mind, the question of code becomes increasingly important for understanding in the digital humanities, and serves as a condition of possibility for the many new computational forms that mediate our experience of contemporary culture and society. (Berry 17)A first step here lies in developing a more robust working knowledge of the conceptual models and methodological priorities assumed by the workings of both the tools and the sources we use for “big social data” research. Understanding how something like the Twitter API mediates the cultures of use of the platform, as well as reflexively engaging with its mediating role in data-driven Twitter research, promotes a much more materialist critical understanding of the politics of the social media platforms (Gillespie) that are now such powerful actors in the media ecology. ReferencesBerry, David M. “Introduction: Understanding Digital Humanities.” Understanding Digital Humanities. Ed. David M. Berry. London: Palgrave Macmillan, 2012. 1-20.boyd, danah, and Kate Crawford. “Critical Questions for Big Data.” Information, Communication & Society 15.5 (2012): 662-79.Bruns, Axel. “Ad Hoc Innovation by Users of Social Networks: The Case of Twitter.” ZSI Discussion Paper 16 (2012). 18 Sep. 2012 ‹https://www.zsi.at/object/publication/2186›.Bruns, Axel, and Jean Burgess. “Notes towards the Scientific Study of Public Communication on Twitter.” Keynote presented at the Conference on Science and the Internet, Düsseldorf, 4 Aug. 2012. 18 Sep. 2012 http://snurb.info/files/2012/Notes%20towards%20the%20Scientific%20Study%20of%20Public%20Communication%20on%20Twitter.pdfBruns, Axel, Jean Burgess, Kate Crawford, and Frances Shaw. “#qldfloods and @QPSMedia: Crisis Communication on Twitter in the 2011 South East Queensland Floods.” Brisbane: ARC Centre of Excellence for Creative Industries and Innovation, 2012. 18 Sep. 2012 ‹http://cci.edu.au/floodsreport.pdf›Burgess, Jean E. & Bruns, Axel (2012) “(Not) the Twitter Election: The Dynamics of the #ausvotes Conversation in Relation to the Australian Media Ecology.” Journalism Practice 6.3 (2012): 384-402Dixon, Dan. “Analysis Tool Or Research Methodology: Is There an Epistemology for Patterns?” Understanding Digital Humanities. Ed. David M. Berry. London: Palgrave Macmillan, 2012. 191-209.Fuller, Matthew. Media Ecologies: Materialist Energies in Art and Technoculture. Cambridge, Mass.: MIT P, 2005.Gillespie, Tarleton. “The Politics of ‘Platforms’.” New Media & Society 12.3 (2010): 347-64.Harrington, Stephen, Highfield, Timothy J., & Bruns, Axel (2012) “More than a Backchannel: Twitter and Television.” Ed. José Manuel Noguera. Audience Interactivity and Participation. COST Action ISO906 Transforming Audiences, Transforming Societies, Brussels, Belgium, pp. 13-17. 18 Sept. 2012 http://www.cost-transforming-audiences.eu/system/files/essays-and-interview-essays-18-06-12.pdfLotan, Gilad, Erhardt Graeff, Mike Ananny, Devin Gaffney, Ian Pearce, and danah boyd. “The Arab Spring: The Revolutions Were Tweeted: Information Flows during the 2011 Tunisian and Egyptian Revolutions.” International Journal of Communication 5 (2011): 1375-1405. 18 Sep. 2012 ‹http://ijoc.org/ojs/index.php/ijoc/article/view/1246/613›.Manovich, Lev. “Trending: The Promises and the Challenges of Big Social Data.” Debates in the Digital Humanities. Ed. Matthew K. Gold. Minneapolis: U of Minnesota P, 2012. 460-75.Mejias, Ulises A. “Liberation Technology and the Arab Spring: From Utopia to Atopia and Beyond.” Fibreculture Journal 20 (2012). 18 Sep. 2012 ‹http://twenty.fibreculturejournal.org/2012/06/20/fcj-147-liberation-technology-and-the-arab-spring-from-utopia-to-atopia-and-beyond/›.O’Reilly, Tim. “What is Web 2.0? Design Patterns and Business Models for the Next Generation of Software.” O’Reilly Network 30 Sep. 2005. 18 Sep. 2012 ‹http://www.oreillynet.com/pub/a/oreilly/tim/news/2005/09/30/what-is-web-20.html›.Papacharissi, Zizi, and Maria de Fatima Oliveira. “Affective News and Networked Publics: The Rhythms of News Storytelling on #Egypt.” Journal of Communication 62.2 (2012): 266-82.Sample, Mark. “The End of Twapperkeeper (and What to Do about It).” ProfHacker. The Chronicle of Higher Education 8 Mar. 2011. 18 Sep. 2012 ‹http://chronicle.com/blogs/profhacker/the-end-of-twapperkeeper-and-what-to-do-about-it/31582›.Sippey, Michael. “Changes Coming in Version 1.1 of the Twitter API.” 16 Aug. 2012. Twitter Developers Blog. 18 Sep. 2012 ‹https://dev.Twitter.com/blog/changes-coming-to-Twitter-api›.Stone, Biz. “Introducing the Twitter API.” Twitter Blog 20 Sep. 2006. 18 Sep. 2012 ‹http://blog.Twitter.com/2006/09/introducing-Twitter-api.html›.Twitter. “Developer Rules of the Road.” Twitter Developers Website 17 May 2012. 18 Sep. 2012 ‹https://dev.Twitter.com/terms/api-terms›.Twitter. “Frequently Asked Questions.” 18 Sep. 2012 ‹https://dev.twitter.com/docs/faq›.Van Dijck, José. “Tracing Twitter: The Rise of a Microblogging Platform.” International Journal of Media and Cultural Politics 7.3 (2011): 333-48.Walker Rettberg, Jill. Blogging. Cambridge: Polity, 2008.Wood, Megan M., and Linda Baughman. “Glee Fandom and Twitter: Something New, or More of the Same Old Thing?” Communication Studies 63.3 (2012): 328-44.
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Chavdarov, Anatoliy V. "Special Issue No. – 10, June, 2020 Journal > Special Issue > Special Issue No. – 10, June, 2020 > Page 5 “Quantative Methods in Modern Science” organized by Academic Paper Ltd, Russia MORPHOLOGICAL AND ANATOMICAL FEATURES OF THE GENUS GAGEA SALISB., GROWING IN THE EAST KAZAKHSTAN REGION Authors: Zhamal T. Igissinova,Almash A. Kitapbayeva,Anargul S. Sharipkhanova,Alexander L. Vorobyev,Svetlana F. Kolosova,Zhanat K. Idrisheva, DOI: https://doi.org/10.26782/jmcms.spl.10/2020.06.00041 Abstract: Due to ecological preferences among species of the genus GageaSalisb, many plants are qualified as rare and/or endangered. Therefore, the problem of rational use of natural resources, in particular protection of early spring plant species is very important. However, literary sources analysis only reveals data on the biology of species of this genus. The present research,conducted in the spring of 2017-2019, focuses on anatomical and morphological features of two Altai species: Gagealutea and Gagea minima; these features were studied, clarified and confirmed by drawings and photographs. The anatomical structure of the stem and leaf blade was studied in detail. The obtained research results will prove useful for studies of medicinal raw materials and honey plants. The aforementioned species are similar in morphological features, yet G. minima issmaller in size, and its shoots appear earlier than those of other species Keywords: Flora,gageas,Altai species,vegetative organs., Refference: I. Atlas of areas and resources of medicinal plants of Kazakhstan.Almaty, 2008. II. Baitenov M.S. Flora of Kazakhstan.Almaty: Ġylym, 2001. III. DanilevichV. G. ThegenusGageaSalisb. of WesternTienShan. PhD Thesis, St. Petersburg,1996. IV. EgeubaevaR.A., GemedzhievaN.G. The current state of stocks of medicinal plants in some mountain ecosystems of Kazakhstan.Proceedings of the international scientific conference ‘”Results and prospects for the development of botanical science in Kazakhstan’, 2002. V. Kotukhov Yu.A. New species of the genus Gagea (Liliaceae) from Southern Altai. Bot. Journal.1989;74(11). VI. KotukhovYu.A. ListofvascularplantsofKazakhstanAltai. Botan. Researches ofSiberiaandKazakhstan.2005;11. VII. KotukhovYu. The current state of populations of rare and endangered plants in Eastern Kazakhstan. Almaty: AST, 2009. VIII. Kotukhov Yu.A., DanilovaA.N., AnufrievaO.A. Synopsisoftheonions (AlliumL.) oftheKazakhstanAltai, Sauro-ManrakandtheZaisandepression. BotanicalstudiesofSiberiaandKazakhstan. 2011;17: 3-33. IX. Kotukhov, Yu.A., Baytulin, I.O. Rareandendangered, endemicandrelictelementsofthefloraofKazakhstanAltai. MaterialsoftheIntern. scientific-practical. conf. ‘Sustainablemanagementofprotectedareas’.Almaty: Ridder, 2010. X. Krasnoborov I.M. et al. The determinant of plants of the Republic of Altai. Novosibirsk: SB RAS, 2012. XI. Levichev I.G. On the species status of Gagea Rubicunda. Botanical Journal.1997;6:71-76. XII. Levichev I.G. A new species of the genus Gagea (Liliaceae). Botanical Journal. 2000;7: 186-189. XIII. Levichev I.G., Jangb Chang-gee, Seung Hwan Ohc, Lazkovd G.A.A new species of genus GageaSalisb.(Liliaceae) from Kyrgyz Republic (Western Tian Shan, Chatkal Range, Sary-Chelek Nature Reserve). Journal of Asia-Pacific Biodiversity.2019; 12: 341-343. XIV. Peterson A., Levichev I.G., Peterson J. Systematics of Gagea and Lloydia (Liliaceae) and infrageneric classification of Gagea based on molecular and morphological data. Molecular Phylogenetics and Evolution.2008; 46. XV. Peruzzi L., Peterson A., Tison J.-M., Peterson J. Phylogenetic relationships of GageaSalisb.(Liliaceae) in Italy, inferred from molecular and morphological data matrices. Plant Systematics and Evolution; 2008: 276. XVI. Rib R.D. Honey plants of Kazakhstan. Advertising Digest, 2013. XVII. Scherbakova L.I., Shirshikova N.A. Flora of medicinal plants in the vicinity of Ust-Kamenogorsk. Collection of materials of the scientific-practical conference ‘Unity of Education, Science and Innovation’. Ust-Kamenogorsk: EKSU, 2011. XVIII. syganovA.P. PrimrosesofEastKazakhstan. Ust-Kamenogorsk: EKSU, 2001. XIX. Tsyganov A.P. Flora and vegetation of the South Altai Tarbagatay. Berlin: LAP LAMBERT,2014. XX. Utyasheva, T.R., Berezovikov, N.N., Zinchenko, Yu.K. ProceedingsoftheMarkakolskStateNatureReserve. Ust-Kamenogorsk, 2009. XXI. Xinqi C, Turland NJ. Gagea. Flora of China.2000;24: 117-121. XXII. Zarrei M., Zarre S., Wilkin P., Rix E.M. Systematic revision of the genus GageaSalisb. (Liliaceae) in Iran.BotJourn Linn Soc.2007;154. XXIII. Zarrei M., Wilkin P., Ingroille M.J., Chase M.W. A revised infrageneric classification for GageaSalisb. (Tulipeae; Liliaceae): insights from DNA sequence and morphological data.Phytotaxa.2011:5. View | Download INFLUENCE OF SUCCESSION CROPPING ON ECONOMIC EFFICIENCY OF NO-TILL CROP ROTATIONS Authors: Victor K. Dridiger,Roman S. Stukalov,Rasul G. Gadzhiumarov,Anastasiya A. Voropaeva,Viktoriay A. Kolomytseva, DOI: https://doi.org/10.26782/jmcms.spl.10/2020.06.00042 Abstract: This study was aimed at examining the influence of succession cropping on the economic efficiency of no-till field crop rotations on the black earth in the zone of unstable moistening of the Stavropol krai. A long-term stationary experiment was conducted to examine for the purpose nine field crop rotation patterns different in the number of fields (four to six), set of crops, and their succession in crop rotation. The respective shares of legumes, oilseeds, and cereals in the cropping pattern were 17 to 33, 17 to 40, and 50 to 67 %. It has been established that in case of no-till field crop cultivation the economic efficiency of plant production depends on the set of crops and their succession in rotation. The most economically efficient type of crop rotation is the soya-winter wheat-peas-winter wheat-sunflower-corn six-field rotation with two fields of legumes: in this rotation 1 ha of crop rotation area yields 3 850 grain units per ha at a grain unit prime cost of 5.46 roubles; the plant production output return and profitability were 20,888 roubles per ha and 113 %, respectively. The high production profitabilities provided by the soya-winter wheat-sunflower four-field and the soya-winter-wheat-sunflower-corn-winter wheat five-field crop rotation are 108.7 and 106.2 %, respectively. The inclusion of winter wheat in crop rotation for two years in a row reduces the second winter wheat crop yield by 80 to 100 %, which means a certain reduction in the grain unit harvesting rate to 3.48-3.57 thousands per ha of rotation area and cuts the production profitability down to 84.4-92.3 %. This is why, no-till cropping should not include winter wheat for a second time Keywords: No-till technology,crop rotation,predecessor,yield,return,profitability, Refference: I Badakhova G. Kh. and Knutas A. V., Stavropol Krai: Modern Climate Conditions [Stavropol’skiykray: sovremennyyeklimaticheskiyeusloviya]. Stavropol: SUE Krai Communication Networks, 2007. II Cherkasov G. N. and Akimenko A. S. Scientific Basis of Modernization of Crop Rotations and Formation of Their Systems according to the Specializations of Farms in the Central Chernozem Region [Osnovy moderniz atsiisevooborotoviformirovaniyaikh sistem v sootvetstvii so spetsi-alizatsiyeykhozyaystvTsentral’nogoChernozem’ya]. Zemledelie. 2017; 4: 3-5. III Decree 330 of July 6, 2017 the Ministry of Agriculture of Russia “On Approving Coefficients of Converting to Agricultural Crops to Grain Units [Ob utverzhdeniikoeffitsiyentovperevoda v zernovyyee dinitsysel’s kokhozyaystvennykhkul’tur]. IV Dridiger V. K., About Methods of Research of No-Till Technology [O metodikeissledovaniytekhnologii No-till]//Achievements of Science and Technology of AIC (Dostizheniyanaukiitekhniki APK). 2016; 30 (4): 30-32. V Dridiger V. K. and Gadzhiumarov R. G. Growth, Development, and Productivity of Soya Beans Cultivated On No-Till Technology in the Zone of Unstable Moistening of Stavropol Region [Rost, razvitiyeiproduktivnost’ soiprivozdelyvaniipotekhnologii No-till v zone ne-ustoychivog ouvlazhneniyaStavropol’skogokraya]//Oil Crops RTBVNIIMK (Maslichnyyekul’turyNTBVNIIMK). 2018; 3 (175): 52–57. VI Dridiger V. K., Godunova E. I., Eroshenko F. V., Stukalov R. S., Gadzhiumarov, R. G., Effekt of No-till Technology on erosion resistance, the population of earthworms and humus content in soil (Vliyaniyetekhnologii No-till naprotivoerozionnuyuustoychivost’, populyatsiyudozhdevykhcherveyisoderzhaniyegumusa v pochve)//Research Journal of Pharmaceutical, Biological and Chemical Sciences. 2018; 9 (2): 766-770. VII Karabutov A. P., Solovichenko V. D., Nikitin V. V. et al., Reproduction of Soil Fertility, Productivity and Energy Efficiency of Crop Rotations [Vosproizvodstvoplodorodiyapochv, produktivnost’ ienergeticheskayaeffektivnost’ sevooborotov]. Zemledelie. 2019; 2: 3-7. VIII Kulintsev V. V., Dridiger V. K., Godunova E. I., Kovtun V. I., Zhukova M. P., Effekt of No-till Technology on The Available Moisture Content and Soil Density in The Crop Rotation [Vliyaniyetekhnologii No-till nasoderzhaniyedostupnoyvlagiiplotnost’ pochvy v sevoob-orote]// Research Journal of Pharmaceutical, Biological and Chemical Sciences. 2017; 8 (6): 795-99. IX Kulintsev V. V., Godunova E. I., Zhelnakova L. I. et al., Next-Gen Agriculture System for Stavropol Krai: Monograph [SistemazemledeliyanovogopokoleniyaStavropol’skogokraya: Monogtafiya]. Stavropol: AGRUS Publishers, Stavropol State Agrarian University, 2013. X Lessiter Frank, 29 reasons why many growers are harvesting higher no-till yields in their fields than some university scientists find in research plots//No-till Farmer. 2015; 44 (2): 8. XI Rodionova O. A. Reproduction and Exchange-Distributive Relations in Farming Entities [Vosproizvodstvoiobmenno-raspredelitel’nyyeotnosheniya v sel’skokhozyaystvennykhorganizatsiyakh]//Economy, Labour, and Control in Agriculture (Ekonomika, trud, upravleniye v sel’skomkhozyaystve). 2010; 1 (2): 24-27. XII Sandu I. S., Svobodin V. A., Nechaev V. I., Kosolapova M. V., and Fedorenko V. F., Agricultural Production Efficiency: Recommended Practices [Effektivnost’ sel’skokhozyaystvennogoproizvodstva (metodicheskiyerekomendatsii)]. Moscow: Rosinforagrotech, 2013. XIII Sotchenko V. S. Modern Corn Cultivation Technologies [Sovremennayatekhnologiyavozdelyvaniya]. Moscow: Rosagrokhim, 2009. View | Download DEVELOPMENT AND TESTING OF AUTONOMOUS PORTABLE SEISMOMETER DESIGNED FOR USE AT ULTRALOW TEMPERATURES IN ARCTIC ENVIRONMENT Authors: Mikhail A. Abaturov,Yuriy V. Sirotinskiy, DOI: https://doi.org/10.26782/jmcms.spl.10/2020.06.00043 Abstract: This paper is concerned with solving one of the issues of the general problem of designing geophysical equipment for the natural climatic environment of the Arctic. The relevance of the topic has to do with an increased global interest in this region. The paper is aimed at considering the basic principles of developing and the procedure of testing seismic instruments for use at ultralow climatic temperatures. In this paper the indicated issue is considered through the example of a seismic module designed for petroleum and gas exploration by passive seismoacoustic methods. The seismic module is a direct-burial portable unit of around 5 kg in weight, designed to continuously measure and record microseismic triaxial orthogonal (ZNE) noise in a range from 0.1 to 45 Hz during several days in autonomous mode. The functional chart of designing the seismic module was considered, and concrete conclusions were made for choosing the necessary components to meet the ultralow-temperature operational requirements. The conclusions made served for developing appropriate seismic module. In this case, the components and tools used included a SAFT MP 176065 xc low-temperature lithium cell, industrial-spec electronic component parts, a Zhaofeng Geophysical ZF-4.5 Chinese primary electrodynamic seismic sensor, housing seal parts made of frost-resistant silicone materials, and finely dispersed silica gel used as water-retaining sorbent to avoid condensation in the housing. The paper also describes a procedure of low-temperature collation tests at the lab using a New Brunswick Scientific freezing plant. The test results proved the operability of the developed equipment at ultralow temperatures down to -55°C. In addition, tests were conducted at low microseismic noises in the actual Arctic environment. The possibility to detect signals in a range from 1 to 10 Hz at the level close to the NLNM limit (the Peterson model) has been confirmed, which allows monitoring and exploring petroleum and gas deposits by passive methods. As revealed by this study, the suggested approaches are efficient in developing high-precision mobile seismic instruments for use at ultralow climatic temperatures. The solution of the considered instrumentation and methodical issues is of great practical significance as a constituent of the generic problem of Arctic exploration. Keywords: Seismic instrumentation,microseismic monitoring,Peterson model,geological exploration,temperature ratings,cooling test, Refference: I. AD797: Ultralow Distortion, Ultralow Noise Op Amp, Analog Devices, Inc., Data Sheet (Rev. K). Analog Devices, Inc. URL: https://www.analog.com/media/en/technical-documentation/data-sheets/AD797.pdf(Date of access September 2, 2019). II. Agafonov, V. M., Egorov, I. V., and Shabalina, A. S. Operating Principles and Technical Characteristics of a Small-Sized Molecular–Electronic Seismic Sensor with Negative Feedback [Printsipyraboty I tekhnicheskiyekharakteristikimalogabaritnogomolekulyarno-elektronnogoseysmodatchika s otritsatel’noyobratnoysvyaz’yu]. SeysmicheskiyePribory (Seismic Instruments). 2014; 50 (1): 1–8. DOI: 10.3103/S0747923914010022. III. Antonovskaya, G., Konechnaya, Ya.,Kremenetskaya, E., Asming, V., Kvaema, T., Schweitzer, J., Ringdal, F. Enhanced Earthquake Monitoring in the European Arctic. Polar Science. 2015; 1 (9): 158-167. IV. Anthony, R. E., Aster, R. C., Wiens, D., Nyblade, Andr., Anandakrishnan, Sr., Huerta, Audr., Winberry, J. P., Wilson, T., and Rowe, Ch. The Seismic Noise Environment of Antarctica. Seismological Research Letters. 2015; 86(1): 89-100. DOI: 10.1785/0220150005 V. Brincker, R., Lago, T. L., Andersen, P., and Ventura, C. Improving the Classical Geophone Sensor Element by Digital Correction. In Conference Proceedings: IMAC-XXIII: A Conference & Exposition on Structural Dynamics Society for Experimental Mechanics, 2005. URL: https://www.researchgate.net/publication/242452637_Improving_the_Classical_Geophone_Sensor_Element_by_Digital_Correction(Date of access September 2, 2019). VI. Bylaw 164 of the State Committee for Construction of the Russian Federation “On adopting amendments to SNiP 31-01-99 “Construction climatology”. URL: https://base.garant.ru/2322381/(Date of access September 2, 2019). VII. Chao Xu, Junbo Wang, Deyong Chen, Jian Chen, Bowen Liu, Wenjie Qi, XichenZheng, Hua Wei, Guoqing Zhang. The Electrochemical Seismometer Based on a Novel Designed.Sensing Electrode for Undersea Exploration. 20th International Conference on Solid-State Sensors, Actuators and Microsystems &Eurosensors XXXIII (TRANSDUCERS &EUROSENSORS XXXIII). IEEE, 2019. DOI: 10.1109/TRANSDUCERS.2019.8808450. VIII. Chebotareva, I. Ya. New algorithms of emission tomography for passive seismic monitoring of a producing hydrocarbon deposit: Part I. Algorithms of processing and numerical simulation [Novyye algoritmyemissionnoyto mografiidlyapassivnogoseysmicheskogomonitoringarazrabatyvayemykhmestorozhdeniyuglevodorodov. Chast’ I: Algoritmyobrabotki I chislennoyemodelirovaniye]. FizikaZemli. 2010; 46(3):187-98. DOI: 10.1134/S106935131003002X IX. Danilov, A. V. and Konechnaya, Ya. V. Analytical comparison of seismic instruments for stationary surveys in the Arctic [Sravnitel’nyyanalizseysmicheskoyapparaturydlyastatsionarnykhnablyudeniy v Arktike]. DSYS. URL: https://dsys.ru/upload/id254_docPDF_FranzJosefLand.pdf(Date of access September 2, 2019). X. Dew point temperature calculator. Maple Tech. International LLC. URL: https://www.calculator.net/dew-point-calculator.html?airtemperature=20&airtemperatureunit=celsius&humidity=0.34&dewpoint=&dewpointunit=celsius&x=51&y=14(Date of access September 2, 2019). XI. Frolov, A. S. Matching of wave fields recorded by different geophysical receivers [Soglasovaniyevolnovykhpoley, poluchennykh s primeneniyemrazlichnoyregistriruyushcheyapparatury]. Abstracts IX International scientific and technical conference competition of young specialists “Geophysics-2013”. Saint-Petersburg: Gubkin University, 2013. URL: https://www.gubkin.ru/faculty/geology_and_geophysics/chairs_and_departments/exploration_geophysics_and_computers_systems/files/2013_SPb_Frolov.pdf. (Date of access September 2, 2019). XII. Gibbons, S. J., Asming, V., Fedorov, A., Fyen, J., Kero, J., Kozlovskaya, E., Kværna, T., Liszka, L., Näsholm, S.P., Raita, T., Roth, M., Tiira, T., Vinogradov, Yu. The European Arctic: A laboratory for seismoacoustic studies. Seism. Res. Letters. 2015; 86 (3): 917–928. XIII. GOST 8.395-80. State system for ensuring the uniformity of measurements. Reference conditions of measurements while calibrating. General requirements [Gosudarstvennayasistemaobespecheniyaedinstvaizmereniy. Normal’nyyeusloviyaizmereniypripoverke. Obshchiyetrebovaniya]. Moscow: Standartinform, 2008. URL: http://gostrf.com/normadata/1/4294821/4294821960.pdf (Date of access September 2, 2019). XIV. Guralp 6TD. Operators’ Guide. Document Number: MAN-T60-0002, Issue J: April, 2017. Guralp Systems Limited. URL: https://www.guralp.com/documents/MAN-T60-0002.pdf (Date of access September 2, 2019). XV. Inshakova, A. S., Barykina, E. S., and Kozlov, V. V. Role of silica gel in adsorption air drying [Rol’ silikagelya v adsorbtsionnoyosushkevozdukha]. AlleyaNauki (Alley of Science). 2017; 15. URL: https://www.alley- science.ru/domains_data/files/November2017/ROL%20SILIKAGELYa%20V%20ADSORBCIONNOY%20OSUShKE%20VOZDUHA.pdf(Date of access September 2, 2019). XVI. Ioffe, D. and Pozdnyakov, P. Searching for Hidden Reserves of Modern Microchip Circuits. Part I [Poiskskrytykhrezervovsovremennykhmikroskhem. Chast’ I].Komponenty I tekhnologii (Components and Technologies). 2015; 4: 144-46. XVII. Jiang Xu, Xi Wang, Ningyi Yuan, Jianning Ding, Si Qin, Joselito M. Razal, Xuehang Wang, ShanhaiGe, Gogotsi, Yu. Extending the low temperature operational limit of Li-ion battery to −80 °C. Energy Storage Materials (IF0). Published 2019-04-27. DOI: 10.1016/j.ensm.2019.04.033. XVIII. Kouznetsov, O. L., Lyasch, Y. F., Chirkin, I. A., Rizanov, E. G., LeRoy, S. D., Koligaev, S. O. Long-term monitoring of microseismic emissions: Earth tides, fracture distribution, and fluid content. SEG, APPG Interpretation. 2016: 4 (2): T191–T204. XIX. Laverov, N. P., Bogoyavlenskiy, V. I., Bogoyavlenskiy, I. V. Fundamental Aspects of Rational Management of the Petroleum and Gas Resources of the Arctic and the Russian Continental Shelf: Strategy, Prospects, and Problems [Fundamental’nyyeaspektyratsional’nogoosvoyeniyaresursovneftiigazaArktiki I shel’faRossii: strategiya, perspektivyi problem].Arktika: ekologiya I ekonomika [Arctic: Ecology and Economy]. 2016; 2 (22): 4-13. XX. Lee, P. Low Noise Amplifier Selection Guide for Optimal Noise Performance, Analog Devices, Inc., AN-940 Application Note. Analog Devices, Inc. URL: https://www.analog.com/media/en/technical-documentation/application-notes/AN-940.pdf(Date of access September 2, 2019). XXI. Markatis, N., Polychronopoulou, K., Tselentis, Ak. Passive seismic tomography: A passive concept actively evolving. First Break. 2012; 30 (7): 83-90. XXII. Matveev, I. V. and Matveeva, N. V. Portable seismic recorder “SEISAR-5” with very low energy consumption for autonomous work in harsh climatic conditions [Portativnyyseysmicheskiyregistrator «Seysar-5» s ochen’ nizkimenergopotrebleniyemdlyaavtonomnoyraboty v slozhnykhklimatic heskikhusloviyakh]. Nauka I tekhnologicheskierazrabotki (Science and Technological Developments). 2017; 96 (3): 33-40. [Special Issue “Applied Geophysics: New Developments and Results. Part 1. Seismology and Seismic Exploration]. DOI: 10.21455/std2017.3-3. XXIII. Mishra, R. The Temperature Ratings of Electronic Parts.Electronics Cooling magazine. URL: http://www.electronics-cooling.com/2004/02/the-temperature-ratings-of-electronic-parts(Date of access September 2, 2019). XXIV. Moore, Sue E.; Stabeno, Phyllis J.; Van Pelt, Thomas I. The Synthesis of Arctic Research (SOAR) project. Deep-Sea Research Part II. 152: 1-7. DOI: 10.1016/j.dsr2.2018.05.013. XXV. MS-SPORT Viscous Silicone Lubricant with Fluoroplastic. ToR2257-010-45540231-2003. OOO VMPAUTO, URL: https://smazka.ru/attachments/get/469/ms-sport-tds.pdf(Date of access September 2, 2019). XXVI. New Brunswick™ Premium -86 °C Freezers. Operating manual. URL: https://www.eppendorf.com/product-media/doc/en/142770_Operating-Manual/New-Brunswick_Freezers_Operating-manual-86-C-Premium-Freezers.pdf(Date of access September 2, 2019). XXVII. New seismic digitizer/recorder for passive seismic monitoring applications. LandTech Enterprises. URL: http://www.landtechsa.com/Images/Instrument/SRi32L/SRi32L.pdf(Date of access September 2, 2019). XXVIII. Parker, T., Winberry, P., Huerta, A., Bainbridge, G., Devanney, P. Direct Burial Broadband Seismic Instrumentation for Polar Environments. Nanometrics Inc. URL: https://www.nanometrics.ca/sites/default/files/2017-11/direct_burial_bb_seismic_instrumentation_for_polar_environments.pdf. (Date of access September 2, 2019). XXIX. Peterson, J. Observation and Modeling of Seismic Background Noise. Albuquerque, New Mexico: US Department of Interior Geological Survey, 1993. XXX. Razinkov, O.G., Sidorov-Biryukov, D. D., Townsend, B., Parker, T., Bainbridge, G., Greiss, R. Strengths and Applications of Direct Burial Seismic Instruments [Preimushchestva I oblastiprimeneniyaseysmicheskikhpriborovdlyapryamoyustanovki v grunt] in Proc. VI Sci. Tech. Conf. “Problems of Complex Geophysical Monitoring of the Russian Far East”, Petropavlovsk-Kamchatskiy: Geophysical Survey, Russian Academy of Sciences, 2017. URL: http://www.emsd.ru/conf2017lib/pdf/techn/razinkov.pdf (Date of access September 2, 2019). XXXI. Roux, Ph., Wathelet, M., Roueff, Ant. The San Andreas Fault revisited through seismic-noise and surface-wave tomography. Geophysical Research Letters. 2011; 38 (13). DOI: 10.1029/2011GL047811. XXXII. Rubber O-ring seals for hydraulic and pneumatic equipment. Specifications [Kol’tsarezinovyyeuplotnitel’nyyekruglogosecheniyadlyagidravlicheskikh I pnevmaticheskikhustroystv. Tekhnicheskiyeusloviya]. GOST 18829-2017 Interstate standard. Moscow: Standartinform, 2017. URL: https://files.stroyinf.ru/Data/645/64562.pdf (Date of access September 2, 2019). XXXIII. Sanina, I., Gabsatarova, I., Chernykh, О.,Riznichenko, О., Volosov, S., Nesterkina, M., Konstantinovskaya, N. The Mikhnevo small aperture array enhances the resolution property of seismological observations on the East European Platform. Journal of Seismology (JOSE). 2011; 15 (3): 545-56. (DOI: 10.1007/sl0950-010-9211-х). XXXIV. SM-3VK Magnetoelectric Seismic Pickup. Specifications. ToR-4314-001-02698826-01. N. Laverov Federal Centre for Integrated Arctic Research, Russian Academy of Sciences. URL: http://fciarctic.ru/index.php?page=ckpg (Date of access September 2, 2019). XXXV. Sobisevich, A. L.,Presnov, D. A.,Agafonov, V. M.,Sobisevich, L. E. Autonomous geohydroacoustic ice buoy of new generation [Vmorazhivayemyyavtonomnyygeogidroakusticheskiy buy novogopokoleniya]. Nauka I tekhnologicheskierazrabotki (Science and Technological Developments). 2018; 97 (1): 25–34. [Special issue “Precise Geophysical Monitoring of Natural Hazards. Part 1. Instruments andTechnologies”]. DOI: 10.21455/ std2018.1-3. XXXVI. Zhukov, Y. V. Issues of resistance and reliability of electronic equipment products to the exposure factors [Voprosystoykosti i nadezhnostiizdeliyradioelektronnoytekhniki k vneshnimvozdeystvuyushchimfaktoram]. Provintsial’nyyenauchnyyezapiski (The journal Provincial scientific proceedings). 2019; 1 (9): 118-124. View | Download COMPARATIVE ANALYSIS OF RESULTS OF TREATMENT OF PATIENTS WITH FOOT PATHOLOGY WHO UNDERWENT WEIL OPEN OSTEOTOMY BY CLASSICAL METHOD AND WITHOUT STEOSYNTHESIS Authors: Yuriy V. Lartsev,Dmitrii A. Rasputin,Sergey D. Zuev-Ratnikov,Pavel V.Ryzhov,Dmitry S. Kudashev,Anton A. Bogdanov, DOI: https://doi.org/10.26782/jmcms.spl.10/2020.06.00044 Abstract: The article considers the problem of surgical correction of the second metatarsal bone length. The article analyzes the results of treatment of patients with excess length of the second metatarsal bones that underwent osteotomy with and without osteosynthesis. The results of treatment of patients who underwent metatarsal shortening due to classical Weil-osteotomy with and without osteosynthesis were analyzed. The first group consisted of 34 patients. They underwent classical Weil osteotomy. The second group included 44 patients in whomosteotomy of the second metatarsal bone were not by the screw. When studying the results of the treatment in the immediate postoperative period, weeks 6, 12, slightly better results were observed in patients of the first group, while one year after surgical treatment the results in both groups were comparable. One year after surgical treatment, there were 2.9% (1 patient) of unsatisfactory results in the first group and 4.5% (2 patients) in the second group. Considering the comparability of the results of treatment in remote postoperative period, the choice of concrete method remains with the operating surgeon. Keywords: Flat feet,hallux valgus,corrective osteotomy,metatarsal bones, Refference: I. A novel modification of the Stainsby procedure: surgical technique and clinical outcome [Text] / E. Concannon, R. MacNiocaill, R. Flavin [et al.] // Foot Ankle Surg. – 2014. – Dec., Vol. 20(4). – P. 262–267. II. Accurate determination of relative metatarsal protrusion with a small intermetatarsal angle: a novel simplified method [Text] / L. Osher, M.M. Blazer, S. Buck [et al.] // J. Foot Ankle Surg. – 2014. – Sep.-Oct., Vol. 53(5). – P. 548–556. III. Argerakis, N.G. The radiographic effects of the scarf bunionectomy on rearfoot alignment [Text] / N.G. Argerakis, L.Jr. Weil, L.S. Sr. Weil // Foot Ankle Spec. – 2015. – Apr., Vol. 8(2). – P. 89–94. IV. Bauer, T. Percutaneous forefoot surgery [Text] / T. Bauer // Orthop. Traumatol. Surg. Res. – 2014. – Feb., Vol. 100(1 Suppl.). – P. S191–S204. V. Biomechanical Evaluation of Custom Foot Orthoses for Hallux Valgus Deformity [Text] // J. Foot Ankle Surg. – 2015. – Sep.-Oct., Vol.54(5). – P. 852–855. VI. Chopra, S. Characterization of gait in female patients with moderate to severe hallux valgus deformity [Text] / S. Chopra, K. Moerenhout, X. Crevoisier // Clin. Biomech. (Bristol, Avon). – 2015. – Jul., Vol. 30(6). – P. 629–635. VII. Computer assisted planning and custom-made surgical guide for malunited pronation deformity after first metatarsophalangeal joint arthrodesis in rheumatoid arthritis: a case report [Text] / M. Hirao, S. Ikemoto, H. Tsuboi [et al.] // Comput. Aided Surg. – 2014. – Vol. 19(1-3). – P. 13–19. VIII. Correlation between static radiographic measurements and intersegmental angular measurements during gait using a multisegment foot model [Text] / D.Y. Lee, S.G. Seo, E.J. Kim [et al.] // Foot Ankle Int. – 2015. – Jan., Vol.36(1). – P. 1–10. IX. Correlative study between length of first metatarsal and transfer metatarsalgia after osteotomy of first metatarsal [Text]: [Article in Chinese] / F.Q. Zhang, B.Y. Pei, S.T. Wei [et al.] // Zhonghua Yi XueZaZhi. – 2013. – Nov. 19, Vol. 93(43). – P. 3441–3444. X. Dave, M.H. Forefoot Deformity in Rheumatoid Arthritis: A Comparison of Shod and Unshod Populations [Text] / M.H. Dave, L.W. Mason, K. Hariharan // Foot Ankle Spec. – 2015. – Oct., Vol. 8(5). – P. 378–383. XI. Does arthrodesis of the first metatarsophalangeal joint correct the intermetatarsal M1M2 angle? Analysis of a continuous series of 208 arthrodeses fixed with plates [Text] / F. Dalat, F. Cottalorda, M.H. Fessy [et al.] // Orthop. Traumatol. Surg. Res. – 2015. – Oct., Vol. 101(6). – P. 709–714. XII. Dynamic plantar pressure distribution after percutaneous hallux valgus correction using the Reverdin-Isham osteotomy [Text]: [Article in Spanish] / G. Rodríguez-Reyes, E. López-Gavito, A.I. Pérez-Sanpablo [et al.] // Rev. Invest. Clin. – 2014. – Jul., Vol. 66, Suppl. 1. – P. S79-S84. XIII. Efficacy of Bilateral Simultaneous Hallux Valgus Correction Compared to Unilateral [Text] / A.V. Boychenko, L.N. Solomin, S.G. Parfeyev [et al.] // Foot Ankle Int. – 2015. – Nov., Vol. 36(11). – P. 1339–1343. XIV. Endolog technique for correction of hallux valgus: a prospective study of 30 patients with 4-year follow-up [Text] / C. Biz, M. Corradin, I. Petretta [et al.] // J. OrthopSurg Res. – 2015. – Jul. 2, № 10. – P. 102. XV. First metatarsal proximal opening wedge osteotomy for correction of hallux valgus deformity: comparison of straight versus oblique osteotomy [Text] / S.H. Han, E.H. Park, J. Jo [et al.] // Yonsei Med. J. – 2015. – May, Vol. 56(3). – P. 744–752. XVI. Long-term outcome of joint-preserving surgery by combination metatarsal osteotomies for shortening for forefoot deformity in patients with rheumatoid arthritis [Text] / H. Niki, T. Hirano, Y. Akiyama [et al.] // Mod. Rheumatol. – 2015. – Sep., Vol. 25(5). – P. 683–638. XVII. Maceira, E. Transfer metatarsalgia post hallux valgus surgery [Text] / E. Maceira, M. Monteagudo // Foot Ankle Clin. – 2014. – Jun., Vol. 19(2). – P.285–307. XVIII. Nielson, D.L. Absorbable fixation in forefoot surgery: a viable alternative to metallic hardware [Text] / D.L. Nielson, N.J. Young, C.M. Zelen // Clin. Podiatr. Med. Surg. – 2013. – Jul., Vol. 30(3). – P. 283–293 XIX. Patient’s satisfaction after outpatient forefoot surgery: Study of 619 cases [Text] / A. Mouton, V. Le Strat, D. Medevielle [et al.] // Orthop. Traumatol. Surg. Res. – 2015. – Oct., Vol. 101(6 Suppl.). – P. S217–S220. XX. Preference of surgical procedure for the forefoot deformity in the rheumatoid arthritis patients–A prospective, randomized, internal controlled study [Text] / M. Tada, T. Koike, T. Okano [et al.] // Mod. Rheumatol. – 2015. – May., Vol. 25(3). – P.362–366. XXI. Redfern, D. Percutaneous Surgery of the Forefoot [Text] / D. Redfern, J. Vernois, B.P. Legré // Clin. Podiatr. Med. Surg. – 2015. – Jul., Vol. 32(3). – P. 291–332. XXII. Singh, D. Bullous pemphigoid after bilateral forefoot surgery [Text] / D. Singh, A. Swann // Foot Ankle Spec. – 2015. – Feb., Vol. 8(1). – P. 68–72. XXIII. Treatment of moderate hallux valgus by percutaneous, extra-articular reverse-L Chevron (PERC) osteotomy [Text] / J. Lucas y Hernandez, P. Golanó, S. Roshan-Zamir [et al.] // Bone Joint J. – 2016. – Mar., Vol. 98-B(3). – P. 365–373. XXIV. Weil, L.Jr. Scarf osteotomy for correction of hallux abducto valgus deformity [Text] / L.Jr. Weil, M. Bowen // Clin. Podiatr. Med. Surg. – 2014. – Apr., Vol.31(2). – P. 233–246. View | Download QUANTITATIVE ULTRASONOGRAPHY OF THE STOMACH AND SMALL INTESTINE IN HEALTHYDOGS Authors: Roman A. Tcygansky,Irina I. Nekrasova,Angelina N. Shulunova,Alexander I.Sidelnikov, DOI: https://doi.org/10.26782/jmcms.spl.10/2020.06.00045 Abstract: Purpose.To determine the quantitative echogenicity indicators (and their ratio) of the layers of stomach and small intestine wall in healthy dogs. Methods. A prospective 3-year study of 86 healthy dogs (aged 1-7 yrs) of different breeds and of both sexes. Echo homogeneity and echogenicity of the stomach and intestines wall were determined by the method of Silina, T.L., et al. (2010) in absolute values ​​of average brightness levels of ultrasound image pixels using the 8-bit scale with 256 shades of gray. Results. Quantitative echogenicity indicators of the stomach and the small intestine wall in dogs were determined. Based on the numerical values ​​characterizing echogenicity distribution in each layer of a separate structure of the digestive system, the coefficient of gastric echogenicity is determined as 1:2.4:1.1 (mucosa/submucosa/muscle layers, respectively), the coefficient of duodenum and jejunum echogenicity is determined as 1:3.5:2 and that of ileum is 1:1.8:1. Clinical significance. The echogenicity coefficient of the wall of the digestive system allows an objective assessment of the stomach and intestines wall and can serve as the basis for a quantitative assessment of echogenicity changes for various pathologies of the digestive system Keywords: Ultrasound (US),echogenicity,echogenicity coefficient,digestive system,dogs,stomach,intestines, Refference: I. Agut, A. Ultrasound examination of the small intestine in small animals // Veterinary focus. 2009.Vol. 19. No. 1. P. 20-29. II. Bull. 4.RF patent 2398513, IPC51A61B8 / 00 A61B8 / 14 (2006.01) A method for determining the homoechogeneity and the degree of echogenicity of an ultrasound image / T. Silina, S. S. Golubkov. – No. 2008149311/14; declared 12/16/2008; publ. 09/10/2010 III. Choi, M., Seo, M., Jung, J., Lee, K., Yoon, J., Chang, D., Park, RD. Evaluation of canine gastric motility with ultrasonography // J. of Veterinary Medical Science. – 2002. Vol. 64. – № 1. – P. 17-21. IV. Delaney, F., O’Brien, R.T., Waller, K.Ultrasound evaluation of small bowel thickness compared to weight in normal dogs // Veterinary Radiology and Ultrasound. 2003 Vol. 44, № 5. Р 577-580. V. Diana, A., Specchi, S., Toaldo, M.B., Chiocchetti, R., Laghi, A., Cipone, M. Contrast-enhanced ultrasonography of the small bowel in healthy cats // Veterinary Radiology and Ultrasound. – 2011. – Vol. 52, № 5. – Р. 555-559. VI. Garcia, D.A.A., Froes, T.R. Errors in abdominal ultrasonography in dogs and cats // J. of Small Animal Practice. – 2012. Vol. 53. – № 9. – P. 514-519. VII. Garcia, D.A.A., Froes, T.R. Importance of fasting in preparing dogs for abdominal ultrasound examination of specific organs // J. of Small Animal Practice. – 2014. Vol. 55. – № 12. – P. 630-634. VIII. Gaschen, L., Granger, L.A., Oubre, O., Shannon, D., Kearney, M., Gaschen, F. The effects of food intake and its fat composition on intestinal echogenicity in healthy dogs // Veterinary Radiology and Ultrasound. 2016. Vol. 57. № 5. P. 546-550 IX. Gaschen, L., Kircher, P., Stussi, A., Allenspach, K., Gaschen, F., Doherr, M., Grone, A. Comparison of ultrasonographic findings with clinical activity index (CIBDAI) and diagnosis in dogs with chronic enteropathies // Veterinary radiology and ultrasound. – 2008. – Vol. 49. – № 1. – Р. 56-64. X. Gil, E.M.U. Garcia, D.A.A. Froes, T.R. In utero development of the fetal intestine: Sonographic evaluation and correlation with gestational age and fetal maturity in dogs // Theriogenology. 2015. Vol. 84, №5. Р. 681-686. XI. Gladwin, N.E. Penninck, D.G., Webster, C.R.L. Ultrasonographic evaluation of the thickness of the wall layers in the intestinal tract of dogs // American Journal of Veterinary Research. 2014. Vol. 75, №4. Р. 349-353. XII. Gory, G., Rault, D.N., Gatel, L, Dally, C., Belli, P., Couturier, L., Cauvin, E. Ultrasonographic characteristics of the abdominal esophagus and cardia in dogs // Veterinary Radiology and Ultrasound. 2014. Vol. 55, № 5. P. 552-560. XIII. Günther, C.S. Lautenschläger, I.E., Scholz, V.B. Assessment of the inter- and intraobserver variability for sonographical measurement of intestinal wall thickness in dogs without gastrointestinal diseases | [Inter-und Intraobserver-Variabilitätbei der sonographischenBestimmung der Darmwanddicke von HundenohnegastrointestinaleErkrankungen] // Tierarztliche Praxis Ausgabe K: Kleintiere – Heimtiere. 2014. Vol. 42 №2. Р. 71-78. XIV. Hanazono, K., Fukumoto, S., Hirayama, K., Takashima, K., Yamane, Y., Natsuhori, M., Kadosawa, T., Uchide, T. Predicting Metastatic Potential of gastrointestinal stromal tumors in dog by ultrasonography // J. of Veterinary Medical Science. – 2012. Vol. 74. – № 11. – P. 1477-1482. XV. Heng, H.G., Lim, Ch.K., Miller, M.A., Broman, M.M.Prevalence and significance of an ultrasonographic colonic muscularishyperechoic band paralleling the serosal layer in dogs // Veterinary Radiology and Ultrasound. 2015. Vol. 56 № 6. P. 666-669. XVI. Ivančić, M., Mai, W. Qualitative and quantitative comparison of renal vs. hepatic ultrasonographic intensity in healthy dogs // Veterinary Radiology and Ultrasound. 2008. Vol. 49. № 4. Р. 368-373. XVII. Lamb, C.R., Mantis, P. Ultrasonographic features of intestinal intussusception in 10 dogs // J. of Small Animal Practice. – 2008. Vol. 39. – № 9. – P. 437-441. XVIII. Le Roux, A. B., Granger, L.A., Wakamatsu, N, Kearney, M.T., Gaschen, L.Ex vivo correlation of ultrasonographic small intestinal wall layering with histology in dogs // Veterinary Radiology and Ultrasound.2016. Vol. 57. № 5. P. 534-545. XIX. Nielsen, T. High-frequency ultrasound of Peyer’s patches in the small intestine of young cats / T. Nielsen [et al.] // Journal of Feline Medicine and Surgery. – 2015. – Vol. 18, № 4. – Р. 303-309. XX. PenninckD.G. Gastrointestinal tract. In Nyland T.G., Mattoon J.S. (eds): Small Animal Diagnostic Ultrasound. Philadelphia: WB Saunders. 2002, 2nd ed. Р. 207-230. XXI. PenninckD.G. Gastrointestinal tract. In: PenninckD.G.,d´Anjou M.A. Atlas of Small Animal Ultrasonography. Blackwell Publishing, Iowa. 2008. Р. 281-318. XXII. Penninck, D.G., Nyland, T.G., Kerr, L.Y., Fisher, P.E. Ultrasonographic evaluation of gastrointestinal diseases in small animals // Veterinary Radiology. 1990. Vol. 31. №3. P. 134-141. XXIII. Penninck, D.G.,Webster, C.R.L.,Keating, J.H. The sonographic appearance of intestinal mucosal fibrosis in cats // Veterinary Radiology and Ultrasound. – 2010. – Vol. 51, № 4. – Р. 458-461. XXIV. Pollard, R.E.,Johnson, E.G., Pesavento, P.A., Baker, T.W., Cannon, A.B., Kass, P.H., Marks, S.L. Effects of corn oil administered orally on conspicuity of ultrasonographic small intestinal lesions in dogs with lymphangiectasia // Veterinary Radiology and Ultrasound. 2013. Vol. 54. № 4. P. 390-397. XXV. Rault, D.N., Besso, J.G., Boulouha, L., Begon, D., Ruel, Y. Significance of a common extended mucosal interface observed in transverse small intestine sonograms // Veterinary Radiology and Ultrasound. 2004. Vol. 45. №2. Р. 177-179. XXVI. Sutherland-Smith, J., Penninck, D.G., Keating, J.H., Webster, C.R.L. Ultrasonographic intestinal hyperechoic mucosal striations in dogs are associated with lacteal dilation // Veterinary Radiology and Ultrasound. – 2007. Vol. 48. – № 1. – P. 51-57. View | Download EVALUATION OF ADAPTIVE POTENTIAL IN MEDICAL STUDENTS IN THE CONTEXT OF SEASONAL DYNAMICS Authors: Larisa A. Merdenova,Elena A. Takoeva,Marina I. Nartikoeva,Victoria A. Belyayeva,Fatima S. Datieva,Larisa R. Datieva, DOI: https://doi.org/10.26782/jmcms.spl.10/2020.06.00046 Abstract: The aim of this work was to assess the functional reserves of the body to quantify individual health; adaptation, psychophysiological characteristics of the health quality of medical students in different seasons of the year. When studying the temporal organization of physiological functions, the rhythm parameters of physiological functions were determined, followed by processing the results using the Cosinor Analysis program, which reveals rhythms with an unknown period for unequal observations, evaluates 5 parameters of sinusoidal rhythms (mesor, amplitude, acrophase, period, reliability). The essence of desynchronization is the mismatch of circadian rhythms among themselves or destruction of the rhythms architectonics (instability of acrophases or their disappearance). Desynchronization with respect to the rhythmic structure of the body is of a disregulatory nature, most pronounced in pathological desynchronization. High neurotism, increased anxiety reinforces the tendency to internal desynchronization, which increases with stress. During examination stress, students experience a decrease in the stability of the temporary organization of the biosystem and the tension of adaptive mechanisms develops, which affects attention, mental performance and the quality of adaptation to the educational process. Time is shortened and the amplitude of the “initial minute” decreases, personal and situational anxiety develops, and the level of psychophysiological adaptation decreases. The results of the work are priority because they can be used in assessing quality and level of health. Keywords: Desynchronosis,biorhythms,psycho-emotional stress,mesor,acrophase,amplitude,individual minute, Refference: I. Arendt, J., Middleton, B. Human seasonal and circadian studies in Antarctica (Halley, 75_S) – General and Comparative Endocrinology. 2017: 250-259. (http://dx.doi.org/10.1016/j.ygcen.2017.05.010). II. BalandinYu.P. A brief methodological guide on the use of the agro-industrial complex “Health Sources” / Yu.P. Balandin, V.S. Generalov, V.F. Shishlov. Ryazan, 2007. III. Buslovskaya L.K. Adaptation reactions in students at exam stress/ L.K. Buslovskaya, Yu.P. Ryzhkova. Scientific bulletin of Belgorod State University. Series: Natural Sciences. 2011;17(21):46-52. IV. Chutko L. S. Sindromjemocionalnogovygoranija – Klinicheskie I psihologicheskieaspekty./ L.S Chutko. Moscow: MEDpress-inform, 2013. V. Eroshina K., Paul Wilkinson, Martin Mackey. The role of environmental and social factors in the occurrence of diseases of the respiratory tract in children of primary school age in Moscow. Medicine. 2013:57-71. VI. Fagrell B. “Microcirculation of the Skin”. The physiology and pharmacology of the microcirculation. 2013:423. VII. Gurova O.A. Change in blood microcirculation in students throughout the day. New research. 2013; 2 (35):66-71. VIII. Khetagurova L.G. – Stress/Ed. L.G. Khetagurov. Vladikavkaz: Project-Press Publishing House, 2010. IX. Khetagurova L.G., Urumova L.T. et al. Stress (chronomedical aspects). International Journal of Experimental Education 2010; 12: 30-31. X. Khetagurova L.G., Salbiev K.D., Belyaev S.D., Datieva F.S., Kataeva M.R., Tagaeva I.R. Chronopathology (experimental and clinical aspects/ Ed. L.G. Khetagurov, K.D. Salbiev, S.D.Belyaev, F.S. Datiev, M.R. Kataev, I.R. Tagaev. Moscow: Science, 2004. XI. KlassinaS.Ya. Self-regulatory reactions in the microvasculature of the nail bed of fingers in person with psycho-emotional stress. Bulletin of new medical technologies, 2013; 2 (XX):408-412. XII. Kovtun O.P., Anufrieva E.V., Polushina L.G. Gender-age characteristics of the component composition of the body in overweight and obese schoolchildren. Medical Science and Education of the Urals. 2019; 3:139-145. XIII. Kuchieva M.B., Chaplygina E.V., Vartanova O.T., Aksenova O.A., Evtushenko A.V., Nor-Arevyan K.A., Elizarova E.S., Efremova E.N. A comparative analysis of the constitutional features of various generations of healthy young men and women in the Rostov Region. Modern problems of science and education. 2017; 5:50-59. XIV. Mathias Adamsson1, ThorbjörnLaike, Takeshi Morita – Annual variation in daily light expo-sure and circadian change of melatonin and cortisol consent rations at a northern latitude with large seasonal differences in photoperiod length – Journal of Physiological Anthropology. 2017; 36: 6 – 15. XV. Merdenova L.A., Tagaeva I.R., Takoeva E.A. Features of the study of biological rhythms in children. The results of fundamental and applied research in the field of natural and technical sciences. Materials of the International Scientific and Practical Conference. Belgorod, 2017, pp. 119-123. XVI. Ogarysheva N.V. The dynamics of mental performance as a criterion for adapting to the teaching load. Bulletin of the Samara Scientific Center of the Russian Academy of Sciences. 2014;16:5 (1): S.636-638. XVII. Pekmezovi T. Gene-environment interaction: A genetic-epidemiological approach. Journal of Medical Biochemistry. 2010;29:131-134. XVIII. Rapoport S.I., Chibisov S.M. Chronobiology and chronomedicine: history and prospects/Ed. S.M. Chibisov, S.I. Rapoport ,, M.L. Blagonravova. Chronobiology and Chronomedicine: Peoples’ Friendship University of Russia (RUDN) Press. Moscow, 2018. XIX. Roustit M., Cracowski J.L. “Non-invasive assessment of skin microvascular function in humans: an insight into methods” – Microcirculation 2012; 19 (1): 47-64. XX. Rud V.O., FisunYu.O. – References of the circadian desinchronosis in students. Ukrainian Bulletin of Psychoneurology. 2010; 18(2) (63): 74-77. XXI. Takoeva Z. A., Medoeva N. O., Berezova D. T., Merdenova L. A. et al. Long-term analysis of the results of chronomonitoring of the health of the population of North Ossetia; Vladikavkaz Medical and Biological Bulletin. 2011; 12(12,19): 32-38. XXII. Urumova L.T., Tagaeva I.R., Takoeva E.A., Datieva L.R. – The study of some health indicators of medical students in different periods of the year. Health and education in the XXI century. 2016; 18(4): 94-97. XXIII. Westman J. – Complex diseases. In: Medical genetics for the modern clinician. USA: Lippincott Williams & Wilkins, 2006. XXIV. Yadrischenskaya T.V. Circadian biorhythms of students and their importance in educational activities. Problems of higher education. Pacific State University Press. 2016; 2:176-178. View | Download TRIADIC COMPARATIVE ANALYSIS Authors: Stanislav A.Kudzh,Victor Ya. Tsvetkov, DOI: https://doi.org/10.26782/jmcms.spl.10/2020.06.00047 Abstract: The present study of comparison methods based on the triadic model introduces the following concepts: the relation of comparability and the relation of comparison, and object comparison and attributive comparison. The difference between active and passive qualitative comparison is shown, two triadic models of passive and active comparison and models for comparing two and three objects are described. Triadic comparison models are proposed as an alternative to dyadic comparison models. Comparison allows finding the common and the different; this approach is proposed for the analysis of the nomothetic and ideographic method of obtaining knowledge. The nomothetic method identifies and evaluates the general, while the ideographic method searches for unique in parameters and in combinations of parameters. Triadic comparison is used in systems and methods of argumentation, as well as in the analysis of consistency/inconsistency. Keywords: Comparative analysis,dyad,triad,triadic model,comparability relation,object comparison,attributive comparison,nomothetic method,ideographic method, Refference: I. AltafS., Aslam.M.Paired comparison analysis of the van Baarenmodel using Bayesian approach with noninformativeprior.Pakistan Journal of Statistics and Operation Research 8(2) (2012) 259{270. II. AmooreJ. E., VenstromD Correlations between stereochemical assessments and organoleptic analysis of odorous compounds. Olfaction and Taste (2016) 3{17. III. BarnesJ., KlingerR. Embedding projection for targeted cross-lingual sentiment: model comparisons and a real-world study. Journal of Artificial Intelligence Research 66 (2019) 691{742. doi.org/10.1613/jair.1.11561 IV. Castro-SchiloL., FerrerE.Comparison of nomothetic versus idiographic-oriented methods for making predictions about distal outcomes from time series data. Multivariate Behavioral Research 48(2) (2013) 175{207. V. De BonaG.et al. Classifying inconsistency measures using graphs. Journal of Artificial Intelligence Research 66 (2019) 937{987. VI. FideliR. La comparazione. Milano: Angeli, 1998. VII. GordonT. F., PrakkenH., WaltonD. The Carneades model of argument and burden of proof. Artificial Intelligence 10(15) (2007) 875{896. VIII. GrenzS.J. The social god and the relational self: A Triad theology of the imago Dei. Westminster: John Knox Press, 2001. IX. HermansH.J. M.On the integration of nomothetic and idiographic research methods in the study of personal meaning.Journal of Personality 56(4) (1988) 785{812. X. JamiesonK. G., NowakR. Active ranking using pairwise comparisons.Advances in Neural Information Processing Systems (2011) 2240{2248. XI. JongsmaC.Poythress’s triad logic: a review essay. Pro Rege 42(4) (2014) 6{15. XII. KärkkäinenV.M. Trinity and Religious Pluralism: The Doctrine of the Trinity in Christian Theology of Religions. London: Routledge, 2017. XIII. KudzhS. A., TsvetkovV.Ya. Triadic systems. Russian Technology Magazine 7(6) (2019) 74{882. XIV. NelsonK.E.Some observations from the perspective of the rare event cognitive comparison theory of language acquisition.Children’s Language 6 (1987) 289{331. XV. NiskanenA., WallnerJ., JärvisaloM.Synthesizing argumentation frameworks from examples. Journal of Artificial Intelligence Research 66 (2019) 503{554. XVI. PührerJ.Realizability of three-valued semantics for abstract dialectical frameworks.Artificial Intelligence 278 (2020) 103{198. XVII. SwansonG.Frameworks for comparative research: structural anthropology and the theory of action. In: Vallier, Ivan (Ed.). Comparative methods in sociology: essays on trends and applications.Berkeley: University of California Press, 1971 141{202. XVIII. TsvetkovV.Ya.Worldview model as the result of education.World Applied Sciences Journal 31(2) (2014) 211{215. XIX. TsvetkovV. Ya. Logical analysis and variable scales. Slavic Forum 4(22) (2018) 103{109. XX. Wang S. et al. Transit traffic analysis zone delineating method based on Thiessen polygon. Sustainability 6(4) (2014) 1821{1832. View | Download DEVELOPING TECHNOLOGY OF CREATING WEAR-RESISTANT CERAMIC COATING FOR ICE CYLINDER." JOURNAL OF MECHANICS OF CONTINUA AND MATHEMATICAL SCIENCES spl10, no. 1 (June 28, 2020). http://dx.doi.org/10.26782/jmcms.spl.10/2020.06.00048.

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