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1
Yang, Jian Hua, Guang Xue Zhang, Yu Feng Mao, Hao Li, and Biao Yang. "An Orientation Method Fit for the Photogrammetry of the Excavating Face in a Coal Mine." Advanced Materials Research 1065-1069 (December 2014): 2239–45. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.2239.
Повний текст джерелаАнотація:
Geological logging is a fundamental technical practice in a coal mine and also one of the most important technical jobs for the production of the coal mine, having important significance for the coal mine’s safe production and source recycling. Irregular shapes of the excavating faces make current photographic geological logging mode and methods unfeasible, so this paper studies critical techniques and methods of underground excavating face photographic geological logging in coal mines and proposes a new close-range photogrammetry control method, orienting the excavating face’s stereoscopic image using the directing laser and the plumb line, and proves through experiments that the positional accuracy of this method meets the requirement of the geological logging and that this photogrammetry orientation method is suitable for geological logging of the roadway excavating face images of coal mines.
2
Li, Hao, Yun Cai, Biao Yang, and Ming Fei Wu. "A Fast Geological Logging Technique of Underground Coal Mines Based on Photogrammetry." Advanced Materials Research 663 (February 2013): 661–67. http://dx.doi.org/10.4028/www.scientific.net/amr.663.661.
Повний текст джерелаАнотація:
Aiming at the deficiency of current geological logging method on the coal working face, the geological logging information system for coal mines based on digital camera is developed, integrating techniques of photogrammetry, graphic and image processing, and GIS. Emphasis is mainly placed on the fast acquisition of images from coal mining and excavation faces, photographic information processing and geological logging method, thus achieving the integrated work pattern of data acquisition, computer-aided processing and logging mapping. The experiment shows that by applying the fast geological logging technique of coal mines, the logging result which is accurate, authentic, reliable and satisfies the current requirements can be obtained, improving the work efficiency and result quality, therefore providing a new means and approach for geological logging of underground coal mines.
3
Zhao, Jian Feng, Wen Hua Zeng, and Min Liu. "Comparison System of Face Identification Algorithms under Application-Specific." Advanced Materials Research 268-270 (July 2011): 2072–76. http://dx.doi.org/10.4028/www.scientific.net/amr.268-270.2072.
Повний текст джерелаАнотація:
It has been the academic researching subject how to objectively compare the various face identification algorithms. This paper design a system based on the Colorado State University identification evaluation system, which can compare face identification algorithms under application-specific. First of all, introduced the old system; then taken the logging system for desktop of PC as an example, designed the comparing system of face identification algorithms under application-specific, coded the process of achieving and pre-processed data and described the steps of processing data; at last tested PCA_MahCosine, LDA_ldaSoft, Bayesian_ML, PCA_Euclidean and Bayesian_MAP five common face identification methods, conclude Bayesian_ML algorithm is the best algorithm in face recognition logging system for logging on PC desktop and give the parameter in the system, provide a sample for testing face identification algorithms under application-specific.
4
Bagdanov, Andrew D., Alberto Del Bimbo, Fabrizio Dini, Giuseppe Lisanti, and Iacopo Masi. "Posterity Logging of Face Imagery for Video Surveillance." IEEE MultiMedia 19, no. 4 (October 2012): 48–59. http://dx.doi.org/10.1109/mmul.2012.15.
Повний текст джерела
5
Gamon, T. I., and R. P. Finn. "Simplified Descriptive Scheme and Classification System for the Logging of Cut Slope Faces." Geological Society, London, Engineering Geology Special Publications 2, no. 1 (1986): 253–60. http://dx.doi.org/10.1144/gsl.1986.002.01.46.
Повний текст джерелаАнотація:
AbstractA simplified descriptive scheme and classification system is currently being used for the systematic logging of cut slopes for a 22 ha site formation project in weathered granitic rocks in Hong Kong.The site formation comprises the removal of some 1.5 million m3 of soft granitic soil and 3.5 million m3 of sound rock, and the formation of approximately 60,000 m2 of slope face. The cut slope faces are logged as they are exposed, and the slope protection and stabilisation works designed and installed as the site is lowered.A simplified descriptive scheme was considered essential to reduce the time for logging and eliminate the need for specialist logging personnel.Existing descriptive schemes were compared and the most useful, compatible indices selected. Additional indices from other authors were added where appropriate. This descriptive scheme was simplified after the site investigation stage of the works and the resultant scheme checked against the faces exposed during the excavation of 300,000 m3 of weathered granite as part of the advanced works.The finalised simplified scheme was documented as a manual, which has been used on site to standardise the descriptions, abbreviations and presentation. Once logged, the exposed weathered profile is classified into zones, and the distribution of the zones compared with a number of standard profiles to rapidly assess the stability of the ‘soil’ slopes.To date, 40,000 m2 of slope face have been logged at a scale of 1:100, and appropriate slope protection and stabilisation works designed and installed.
6
Xing, Xiang, Feng Cai, and Wang Shui Hu. "Research on Sedimentary Facies of Formation of Neogene in Oilfield." Applied Mechanics and Materials 340 (July 2013): 920–23. http://dx.doi.org/10.4028/www.scientific.net/amm.340.920.
Повний текст джерелаАнотація:
The paper studied the sedimentary system of No.1 and No.2 structure in Nanpu oil field with methods of geological, logging, seismic and chemical analysis, associated with core characteristics, sedimentary structure, profile structure and logging facies. The results demonstrate the following three points. First, Minghuazhen Formation in Nanpu field is meandering river sedimentary, and the channel subphase can be further divided into channel bottom lag deposits, beach, abandoned channel and natural levee. Second, the isopach and sedimentary face map of Minghuazhen Formation are generated based on each well's thickness of sand body and curve characteristics, and show the trend of North West and South West distribution. Third, sand body distribution can be predicted though spatial distribution of sedimentary face. And linear reservoir and Barrage-type reservoir are the two typical zones of Minghuazhen Formation.
7
Mozahem, Najib Ali. "Using Learning Management System Activity Data to Predict Student Performance in Face-to-Face Courses." International Journal of Mobile and Blended Learning 12, no. 3 (July 2020): 20–31. http://dx.doi.org/10.4018/ijmbl.2020070102.
Повний текст джерелаАнотація:
Higher education institutes are increasingly turning their attention to web-based learning management systems. The purpose of this study is to investigate whether data collected from LMS can be used to predict student performance in classrooms that use LMS to supplement face-to-face teaching. Data was collected from eight courses spread across two semesters at a private university in Lebanon. Event history analysis was used to investigate whether the probability of logging in was related to the gender and grade of the students. Results indicate that students with higher grades login more frequently to the LMS, that females login more frequently than males, and that student login activity increases as the semester progresses. As a result, this study shows that login activity can be used to predict the academic performance of students. These findings suggest that educators in traditional face-to-face classes can benefit from educational data mining techniques that are applied to the data collected by learning management systems in order to monitor student performance.
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Stassen, Gerrit, Christopher Grieben, Ingo Froböse, and Andrea Schaller. "Engagement with a Web-Based Health Promotion Intervention among Vocational School Students: A Secondary User and Usage Analysis." International Journal of Environmental Research and Public Health 17, no. 7 (March 25, 2020): 2180. http://dx.doi.org/10.3390/ijerph17072180.
Повний текст джерелаАнотація:
Engagement with web-based interventions is both generally low and typically declining. Visits and revisits remain a challenge. Based on log data of a web-based cluster randomized controlled trial conducted in vocational schools, the present secondary analysis aimed to identify influencing factors on initially logging in to a health promotion platform among young adults and to examine the engagement over the course of an eight-week intervention. Data of 336 students (62.2% female, age span 18–25) from two intervention arms (web-based intervention and web-based intervention with an additional initial face-to-face contact) was included. Binary logistic regression and log-data visualization were performed. An additional initial face-to-face contact (odds ratio (OR) = 2.971, p = 0.005), female sex (OR = 2.237, p = 0.046) and the health-related skill “dealing with health information” (OR = 2.179, p = 0.030) significantly increased the likelihood of initially logging in. Other variables showed no influence. 16.6% of all potential users logged in at least once, of which 57.4% revisited the platform. Most logins were tracked at the beginning of the intervention and repeated engagement was low. To increase the engagement with web-based interventions, health-related skills should be fostered. In addition, a strategy could be to interlink comparable interventions in vocational schools more regularly with everyday teaching through multi-component interventions.
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Wiryadinata, Romi, Raya Sagita, Siswo Wardoyo, and Priswanto Priswanto. "Pengenalan Wajah Pada Sistem Presensi Menggunakan Metode Dynamic Times Wrapping, Principal Component Analysis dan Gabor Wavelet." Dinamika Rekayasa 12, no. 1 (February 6, 2016): 1. http://dx.doi.org/10.20884/1.dr.2016.12.1.138.
Повний текст джерелаАнотація:
<p align="justify">Presensi is a logging attendance, part of activity reporting an institution, or a component institution itself which contains the presence data compiled and arranged so that it is easy to search for and used when required at any time by the parties concerned. Computer application developed in the presensi system is a computer application that can recognize a person's face using only a webcam. Face recognition in this study using a webcam to capture an image of the room at any given time who later identified the existing faces. Some of the methods used in the research here is a method of the Dynamic Times Wrapping (DTW), Principal Component Analysis (PCA) and Gabor Wavelet. This system, used in testing with normal facial image expression. The success rate of the introduction with the normal expression of face image using DTW amounting to 80%, 100% and PCA Gabor wavelet 97%</p>
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Hartman, G. F., J. C. Scrivener, and T. E. McMahon. "Saying That Logging is Either 'Good' or 'Bad' for Fish Doesn't Tell You How to Manage the System." Forestry Chronicle 63, no. 3 (June 1, 1987): 159–64. http://dx.doi.org/10.5558/tfc63159-3.
Повний текст джерелаАнотація:
A 16-year multi-disciplinary watershad study at Carnation Creek, British Columbia, revealed that different activities in a forest harvest program had different impacts on the physical and biological components of the system. Changes in stream temperature, as a result of logging and a climatic warming trend, and changes in the distribution and volume of woody debris in the channel caused complex sequence of processes to influence salmonid production in both a positive and negative manner. The influence depended on the type of physical change, the fish species and its life history stage, and on the elapsed time after the logging activity. Some direct implications of the research to the problems of managing in the face of complexity are discussed.
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Greene, W. Dale, Thomas G. Harris, Christopher E. DeForest, and Jingxin Wang. "Harvesting Cost Implications of Changes in the Size of Timber Sales in Georgia." Southern Journal of Applied Forestry 21, no. 4 (November 1, 1997): 193–98. http://dx.doi.org/10.1093/sjaf/21.4.193.
Повний текст джерелаАнотація:
Abstract The size of individual forest stands and timber sales in Georgia is slowly declining. The trend runs counter to the minimum sale size sought by harvesting systems where increased capital requirements are making small sales more expensive to perform. Our most common systems will face increasingly expensive logging chances if current trends in sale size continue. South. J. Appl. For. 21(4):193-198.
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Quinnell, Rupert, and Andrew Balmford. "A future for Palawan's forests?" Oryx 22, no. 1 (January 1988): 30–35. http://dx.doi.org/10.1017/s0030605300027368.
Повний текст джерелаАнотація:
Palawan is one of the last relatively undeveloped islands in the Philippines. It still has extensive forest cover, and is of considerable conservation importance. However, the remaining forests are disappearing fast in the face of rapid population growth and uncontrolled logging. The authors visited the island to carry out ecological fieldwork in 1984. Here they report on threats to the forests, and discuss the prospects for sustainable development on Palawan.
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Raatevaara, Antti, Heikki Korpunen, Harri Mäkinen, and Jori Uusitalo. "Log end face image and stem tapering indicate maximum bow height on Norway spruce bottom logs." European Journal of Forest Research 139, no. 6 (August 31, 2020): 1079–90. http://dx.doi.org/10.1007/s10342-020-01309-0.
Повний текст джерелаАнотація:
Abstract In cut-to-length logging, the harvester operator adjusts the bucking in accordance with visible defects on processed stems. Some of the defects, such as a sweep on the bottom of the stem, decrease the yield and quality of sawn products and are difficult for the operator to notice. Detecting the defects with improved sensors would support the operator in his qualitative decision-making and increase value recovery of logging. Predicting the maximum bow height of the bottom log in Norway spruce (Picea abies (L.) Karst.) with log end face image and stem taper was investigated with two modelling approaches. A total of 101 stems were selected from five clear-cut stands in southern Finland. The stems were crosscut and taper measured, and the butt ends of the bottom logs were photographed. The stem diameter, out-of-roundness, and pith eccentricity were measured from the images while the max. bow height was measured by a 3D log scanner at a sawmill. The bottom logs with an eccentric pith had higher max. bow height. In addition, a highly conical bottom part of the stem was more common on the bottom logs with a large max. bow height. Applying both log end face image and stem taper measurements gave the best model fit and detection accuracy (76%) for bottom logs with a large max. bow height. The results indicate that the log end face image and stem taper measurements can be utilised to aid harvester operator in deciding an optimised length for logs according to the bow height.
14
Tian, Gan. "Comprehensive Exploration and three-dimensional construction technology of water plug based on directional horizontal drilling caved column." E3S Web of Conferences 237 (2021): 03003. http://dx.doi.org/10.1051/e3sconf/202123703003.
Повний текст джерелаАнотація:
The ordovician limestone water inrush accident occurred during the excavation of 8228 working face in Tashan Coal Mine, Tongmei Group. On the basis of comprehensive geophysical exploration above and below the well, in order to find out the development boundary of the water flowing subsided column and the distribution characteristics of the broken body filled in it, and to control the subsided column by Grouting, the development boundary, the influence zone, the cementation of the fractured body and the distribution characteristics of the water flowing subsided column are found out by means of multi-layer and multi-branch surface directional horizontal drilling speed logging, drilling fluid leakage, cuttings logging and logging while drilling, and combined with data statistical analysis. The length and short axis of the collapse column is 410m - 200m, and the broken area is mainly distributed in the right front of the driving head of the belt roadway near the water inrush roadway. The 3d geological modeling of the spatial structure and development characteristics of the collapse column is carried out by using SURPAC software, and the main passageway area, fracture area and secondary fracture area are divided according to the crushing degree of the collapse column filling material. In view of the different zones of the collapse column broken body, the directional horizontal drilling control technology and the three-dimensional block grouting technology are used to construct the separate zones of the grouting technology. The safe mining of the working face is finally realized by the comprehensive treatment of cutting the source and reinforcing the water-flowing collapse column. The comprehensive exploration and treatment technology of directional horizontal drilling multi-branch collapse column provides a good reference for other similar projects.
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Espada, Ana Luiza Violato, and Mário Vasconcellos Sobrinho. "Logging Community-Based Forests in the Amazon: An Analysis of External Influences, Multi-Partner Governance, and Resilience." Forests 10, no. 6 (May 28, 2019): 461. http://dx.doi.org/10.3390/f10060461.
Повний текст джерелаАнотація:
Over the last few years, forest-based communities have faced two different but related phenomena. On the one hand, they have become more integrated with global economies, accessing regional and international markets. On the other, they have been pressured by economic groups into becoming part of the ecologically unequal exchange that exports natural resources and generates social and environmental problems at a local level. However, within new approaches to managing common-pool resources in common properties such as sustainable-use protected areas, communities are finding their own ways to be resilient and to face the two phenomena that are part of the same global economic system. Communities have built a multi-partner governance system for forest management and community development that involves agents from the civil society, state and market. Accordingly, multi-partner governance has proven to be a strategy to protect community-based forests against increasing timber market pressure. The question that then emerges is, to what extent has multi-partner governance been effective in supporting forest-based communities to be resilient and to face pressures from the global timber market in forests under community use? The aim of this paper is to analyze forest-based community resilience to the global economic system in situations where common properties are under governance of multiple stakeholders. The research is based on a singular case study in the Tapajós National Forest, Brazilian Amazon, which is a sustainable-use protected area with 24 communities involved in a multi-partner governance system. The article shows that forest-based communities under pressure have been resilient, and facing the global economic system have created a community-based cooperative for managing timber and engaging all partners in the process to improve their collective action. The cooperative provides timber sales revenue that supports community development both through diversification of agroforestry production and building of infrastructure as collective benefits.
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Karsenty, Alain. "Is sustainable logging possible in Africa’s dense forest?" BOIS & FORETS DES TROPIQUES 336 (September 6, 2018): 3. http://dx.doi.org/10.19182/bft2018.336.a31615.
Повний текст джерелаАнотація:
René Catinot, qui fut directeur des recherches forestières au CTFT (Centre Technique Forestier Tropical, qui deviendra le département Forêt du Cirad) et figure historique de la foresterie tropicale française, se posait cette question au début des années 1960. Dès leur arrivée en Afrique Tropicale, nous dit Catinot, « les Forestiers chargés de la gestion de la forêt dense ont cherché à la régénérer ». Les connaissances forestières de milieux tempérés sont insuffisantes face à des forêts qui comportent 200 à 300 espèces, mais qui contiennent nettement moins de bois qu’une forêt aménagée en zone tempérée. Un débat oppose alors les tenants d’une régénération naturelle à ceux de la régénération artificielle. Le problème de l’exploitation sélective tropicale, particulièrement en Afrique, est le faible taux de prélèvement qui limite l’arrivée de lumière au sol et empêche la germination nécessaire au renouvellement des espèces les plus appréciées commercialement, lesquelles sont souvent à tendance héliophile. Catinot est affirmatif « il ne faut pas compter sur la Nature seule pour la régénérer ». Les techniques sylvicoles s’emploient, dès lors, à favoriser ces espèces commerciales, soit en « stimulant la croissance des plants préexistants » (sylviculture utilisant la régénération naturelle), soit en « transplantant dans les forêts épuisées par l’exploitation des plants d’essences nobles préalablement produits en pépinière » (régénération artificielle). Le langage sur la « noblesse » des essences trahit les conceptions de l’époque. Le terme de « diversité biologique » n’apparaitra qu’en 1968 et il faudra encore quelques années pour comprendre que la biodiversité ne se limite pas à la somme des espèces, mais représente l'ensemble des interactions entre les êtres vivants. Que nous dit Catinot, qui exprime bien la pensée des forestiers tropicaux de l’époque ? La sylviculture utilisant la régénération naturelle, « c’est avant tout une destruction lente et prudente du couvert » en utilisant délianage, dégagement et empoisonnement des « espèces gênantes ». Quant à la régénération artificielle, « il faut bien détruire la forêt préexistante pour donner aux plants la lumière indispensable à leur croissance ». Ce langage serait inaudible aujourd’hui, à l’heure où l’on cherche à promouvoir « l’exploitation à faible impact » et où la certification Forest Stewardship Council « de bonne gestion forestière » (FSC) s’interroge sur la compatibilité de l’exploitation, même à faible impact, avec le maintien de « paysages forestiers intacts »...
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Leonov, Jurii, Aleksandr Kuz'menko, Rodion Filippov, Liudmila Filippova, and Anna Sazonova. "Models and methods for automating the analysis of logging for the tasks of geographically distributed socio-economic systems." Applied Mathematics and Control Sciences, no. 4 (January 26, 2022): 92–115. http://dx.doi.org/10.15593/2499-9873/2021.4.06.
Повний текст джерелаАнотація:
Forests play a crucial role in maintaining the Earth's global biodiversity and preserving the ecological balance. In general, forest cover around the world is crucial and is an important indicator of the overall level of health on the planet. It is well known that forests properly purify the air, preserve watersheds, prevent erosion, improve water quality and provide natural resources. In addition, forests help in the face of global warming and absorb a lot of carbon dioxide, which is the main greenhouse gas, thus helping to protect the globe from climate change. In many cases, the range or extent of illegal logging cannot be accurately calculated, mainly due to the nature of the activity. It is estimated that illegal forest activities worldwide lead to the loss of approximately 10-15 billion US dollars in annual government revenues. In the mid-1990s, illicit trade accounted for almost 15% of world trade. In addition, it was pointed out that in the most vulnerable forest regions, more than half of all logging operations were carried out illegally. Despite recent work on environmental initiatives and the development of various tools for monitoring export forest products, more than ever before, it is necessary to use systems to detect illegal logging. Over the past decades, the development of remote sensing technologies, as well as advances in information and communication technologies (ICT), have made it possible to use automated or semi-automatic surveillance solutions in vast areas such as forests. Technologies such as video surveillance, wireless surveillance systems, aerial photographs and satellite images are used. The article discusses the main approaches for analyzing changes in the area of logging. These methods can be used in real time by studying and comparing changes in the areas of forest stands.
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Parnaby, HE. "A taxonomic review of the genus Pteralopex (Chiroptera: Pteropodidae), the monkey-faced bats of the south-western Pacific." Australian Mammalogy 23, no. 2 (2001): 145. http://dx.doi.org/10.1071/am01145.
Повний текст джерелаАнотація:
Morphological variation in the genus Pteralopex is reviewed to evaluate species limits and diagnostic criteria. Five species are recognised: P. atrata and P. pulchra from Guadalcanal, Solomon Islands; P. anceps from Bougainville and Buka Islands, Papua New Guinea, and Choiseul and Isabel Islands, Solomon Islands; and P. acrodonta from Taveuni, Fiji. A new species is described from New Georgia and Vangunu Islands, Solomon Islands. It resembles P. pulchra but differs in dental, cranial and pelage characters. A number of criteria previously considered diagnostic for P. anceps are shown to be invalid. The new species faces a high extinction risk from logging operations and pressure from expanding human populations, and an IUCN threat category of ?Critically Endangered? is proposed. All Pteralopex species face a high risk of extinction and conservation measures such as habitat protection are urgently required.
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Percoco, Vanessa M. "Food Logging and Blogging Toward Healthier Nutrition: Bringing the Curriculum Out of the Classroom and Into the 21st Century." Pedagogy in Health Promotion 3, no. 2 (August 5, 2016): 77–81. http://dx.doi.org/10.1177/2373379916661561.
Повний текст джерелаАнотація:
This article focuses on the benefits of promoting lifelong, healthy eating habits within a student-centered blog. A learning community, located in an urban, northeastern section of the United States, was formed between two fifth grades from different socioeconomic backgrounds and college students enrolled in a nutrition class. Components of this unit, Food Logging and Blogging, include students’ completion and analysis of food diaries, face-to-face discussions regarding healthy eating habits, and a blog. Blogging, still a fairly new form of communication in the classroom environment, promotes engaging conversations and has increased nutrition knowledge. Advantages of blogging include authenticity with audience, transparency that gives students a platform to speak candidly, improved digital literacy savvy, and higher order thinking skills. It also offers prospective health teachers and professionals an alternative form of communication.
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Baksáné Varga, Erika. "Conversion of customer service event logs to standard formats." Production Systems and Information Engineering 10, no. 2 (2022): 1–10. http://dx.doi.org/10.32968/psaie.2022.2.1.
Повний текст джерелаАнотація:
The act of logging the events (transactions, errors, intrusions, etc.) happening within an information system is about the same age as the system itself. Mining these historical records, however, is a recent demand to support robotic process automation initiatives. Our goal is to create an RPA solution for heavily overloaded customer services and we now face the problem of getting logs with different syntax and structure. This paper presents the standard event log formats and reviews the steps of transforming the most frequent non-standard log formats into a uniform formalism.
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Hlaing, Zar Chi, Chiho Kamiyama, and Osamu Saito. "Interaction between Rural People’s Basic Needs and Forest Products: A Case Study of the Katha District of Myanmar." International Journal of Forestry Research 2017 (2017): 1–18. http://dx.doi.org/10.1155/2017/2105012.
Повний текст джерелаАнотація:
The understanding of interaction between rural people and forest products is one of the challenges faced while balancing forest product utilization with forest conservation in Myanmar. This study aims to contribute an effort to such challenges by analyzing the interaction of rural households with forest products in Myanmar. Data were collected using face-to-face questionnaire interviews with 218 households and conducting a rapid tree inventory across 132 circular random plots in selected rural communities around four townships of the Katha District. The empirical results indicate that the 95% of rural households were entirely dependent on forest products. The survey documented 13 main forest products and 54 tree species, which were primarily used for household consumption. Low-income households compared with medium- and high-income households with low educational level (p<0.05) and a small agricultural land area (p<0.05) were found to be more forest-dependent households. Illegal logging, mining, fuel-wood collection, slash-and-burn agriculture, and the establishment of forest plantations were reported as the main causes of forest products depletion. Findings from this study, although at a microlevel, can be used by the Myanmar Forestry Department as baseline information to improve community-based forest management activities.
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Cumming, S. "Forest Issues 2: Conserving Hollow-dependent Fauna in Timber-production Forests (Environmental Heritage Monograph Series No 3)." Pacific Conservation Biology 4, no. 4 (1998): 369. http://dx.doi.org/10.1071/pc980369.
Повний текст джерелаАнотація:
In the absence of primary excavators, such as woodpeckers, the formation of tree-hollows suitable for occupation by hollow-dependent fauna in Australia may take several hundred years. However, intervals between logging operations in timberproduction forests are typically between 40 and 120 years with the result that hollow-dependent fauna are threatened over large areas of Australia's eucalypt forests. Many species of mammals, birds and invertebrates depend upon tree hollows for dens, roosting or nesting, and habitat. Therefore, there is a strong need to retain and conserve suitable hollowbearing trees within Australian forests in the face of increasingly more intensive and destructive timber harvesting practices.
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Hira, Ms Shewli. "A Sociological Study of “Managing Online Education During Covid Times” Ms. Shewli Hira,." Addaiyan Journal of Arts, Humanities and Social Sciences 2, no. 10 (December 15, 2020): 1–8. http://dx.doi.org/10.36099/ajahss.2.10.1.
Повний текст джерелаАнотація:
This paper looks at the emotional problems faced by teachers and students across the globe and Saudi Arabia in particular due to the sudden transition from face-to-face classes to online classes. The pandemic due to Covid 19 brings out the already existing digital/social divide in societies across the world. Amidst such a situation, schools and colleges grappled with new ed-technology. Fitting course content with voice-only features due to cultural issues, teachers had little confidence in presenting lectures on a virtual platform. All of a sudden LMSes, like Blackboard, experienced tremendous load and students had difficulty logging in and sometimes due to bad weather, they could not connect to the LMS. Hilly or remote desert areas had a poor net connection, along with phone incompatibility. As every cloud has a silver lining, the teachers found solutions to improve teaching, and engage students in online learning. Teachers are also forced to re-look at their teaching strategies, re-write lesson plans. With the help of technology, the teachers collected the best materials after hours of search burning for better learning. Unfortunately, all these led to burnout – emotional and mental. As days passed by, students and teachers continued with the hope of learning and teaching from home with fluctuating bandwidth, slow loading pages/site, costly data packs, battery exhausting sessions and tired eyes.
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Zhu, Zheng, and Xiang Zhu. "Study on Spatiotemporal Characteristic and Mechanism of Forest Loss in Urban Agglomeration in the Middle Reaches of the Yangtze River." Forests 12, no. 9 (September 14, 2021): 1242. http://dx.doi.org/10.3390/f12091242.
Повний текст джерелаАнотація:
Under the backdrop of achieving carbon neutrality and accelerating urbanization, China’s forests face unprecedented pressures. This study explored the spatiotemporal characteristics of forest loss in the urban agglomeration in the middle reaches of the Yangtze River (UAMRYR). The dynamic mechanism of forest loss caused by fire, logging, construction, and pollution was also analyzed using spatial database development, polygon superposition analysis, grid system construction, and coordinate system calculation. The results show that the forest loss in the UAMRYR experienced three stages: continuous acceleration (1990–2010), peak (2010–2015), and slight decline (2015–2020). Rapid urban expansion is the primary cause of forest loss, and the three metropolitan areas had the fastest urban expansion and the most severe forest loss. Due to the success of afforestation efforts, the forest loss caused by fire, logging, and pollution was restored by 80%, while most of the forest losses caused by construction are permanent. Given the current forest loss trends, large expanses of forests in the UAMRYR are at risk of being destroyed and causing serious damage to the region’s ecological environment. Forest losses can be significantly reduced by guiding the rational expansion of cities, supporting afforestation for urban construction projects, strengthening forest fire risk investigation, and implementing ecological reconstruction of polluted areas.
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Lahlou, Saadi. "Identity, social status, privacy and face-keeping in digital society." Social Science Information 47, no. 3 (September 2008): 299–330. http://dx.doi.org/10.1177/0539018408092575.
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Digitization of society raises concerns about privacy. This article first describes privacy threats of life-logging. It gives the technically novice reader a quick overview of what information and communication technology (ICT) is currently preparing for society, based on state-of-the art research in the industry laboratories: ubiquitous computing, aware environments, the Internet of Things, and so on. We explain how geolocation systems work and how they can provide detailed accounts of personal activity that will deeply affect privacy. At present, system designers rarely implement privacy-enhancing technologies — we explain why, based on empirical research. On the other hand, users, while expressing concern, do not protect themselves in practice — we list reasons for this. The problem is complex because the very nature of identity and social relations works against protecting personal data; this is the privacy dilemma. At least two key mechanisms in the production of good interaction and in the construction of social status are based on personal data disclosure. Then we discuss the nature of privacy, based on field observation. Privacy loss can be seen as `losing face'. We detail this notion, based on a discussion of the notion of face, and especially the Asian social construct of `Chemyon'. We then propose a new, positive, definition of privacy as `keeping face'. This positive notion can be used to build constructive guidelines for enhancing privacy in systems design, compatible with the way designers perceive their role. These guidelines are presented in an annex, after a short conclusion that advocates a constructive — perhaps risky — role for social science in the construction of future information and communication technology. 1
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Busch, Tobias, Filiep Vanpoucke, and Astrid van Wieringen. "Auditory Environment Across the Life Span of Cochlear Implant Users: Insights From Data Logging." Journal of Speech, Language, and Hearing Research 60, no. 5 (May 24, 2017): 1362–77. http://dx.doi.org/10.1044/2016_jslhr-h-16-0162.
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Purpose We describe the natural auditory environment of people with cochlear implants (CIs), how it changes across the life span, and how it varies between individuals. Method We performed a retrospective cross-sectional analysis of Cochlear Nucleus 6 CI sound-processor data logs. The logs were obtained from 1,501 people with CIs (ages 0–96 years). They covered over 2.4 million hr of implant use and indicated how much time the CI users had spent in various acoustical environments. We investigated exposure to spoken language, noise, music, and quiet, and analyzed variation between age groups, users, and countries. Results CI users spent a substantial part of their daily life in noisy environments. As a consequence, most speech was presented in background noise. We found significant differences between age groups for all auditory scenes. Yet even within the same age group and country, variability between individuals was substantial. Conclusions Regardless of their age, people with CIs face challenging acoustical environments in their daily life. Our results underline the importance of supporting them with assistive listening technology. Moreover, we found large differences between individuals' auditory diets that might contribute to differences in rehabilitation outcomes. Their causes and effects should be investigated further.
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Chen, Qiang, Nengyou Wu, Changling Liu, Changchun Zou, Yang Liu, Jianye Sun, Yanlong Li, and Gaowei Hu. "Research Progress on Global Marine Gas Hydrate Resistivity Logging and Electrical Property Experiments." Journal of Marine Science and Engineering 10, no. 5 (May 9, 2022): 645. http://dx.doi.org/10.3390/jmse10050645.
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Natural gas hydrate is widely spread in marine environments around the world. It has great energy potential due to its high methane gas content. High-precision exploration and evaluation of marine gas hydrate still face great challenges as it is affected by the complex reservoir control mechanisms and distribution characteristics. Resistivity is widely used in geophysical logging and theoretical research on gas hydrate-bearing reservoirs by utilizing the high sensitivity electrical response. In this paper, based on the examination of the global marine gas hydrate occurrences, resistivity logging results are summarized. Then the key remaining gas hydrate resistivity experimental concerns are reviewed. In summary, resistivity properties are a reliable means to derive the gas hydrate reservoir characteristics, despite the effect induced by the anisotropic properties of hydrate reservoirs and drilling technology. The overall resistivity change associated with the occurrence of pore filling gas hydrate in reservoirs are relatively small, and the specific value is affected by sediment lithology and hydrate saturation. On the other hand, fracture filling hydrate reservoirs have strong anisotropy, and massive hydrate occurrences (i.e., layers of gas hydrate with no sediment) section shows very high resistivity variation. Clay minerals are an important factor restricting the accurate estimation of gas hydrate saturations from in situ resistivity measurements. Many experimental studies have proposed the correction of Archie empirical formula, but widely representative models have not yet been developed. It is worth noting that more complex resistivity measurements may be able to provide additional electrical response information on various gas hydrate systems.
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Azmi, Muhammad Aqmarul Azri, Mohd Nazaruddin Yusoff, and Faizal Md. Hanafiah. "ULU MUDA FOREST." Journal of Governance and Development (JGD) 18, no. 1 (December 31, 2022): 33–44. http://dx.doi.org/10.32890/jgd2022.18.1.3.
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Malaysia receives abundant rainfall averaging 3,000 mm annually that contributes to the continuous water resources to the country.However, issues arise on how to manage water supplies effectively and how to sustain the availability of clean water despite otherindustrial activities. Looking at the northern region of Malaysia, the 160,000 hectare of Ulu Muda in Kedah is the largest water catchment area that face the same issue. Even though Kedah is not facing any major issues on water resources since it has adequate catchment area, but the given situation of deforestation or logging activities at the area of the forest will someday bring effect on the water supplies to Kedah, Pulau Pinang and Perlis. This paper aims to address the issue together with measuring the water management system in Kedah.
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Proutsos, Nikolaos, Alexandra Solomou, George Karetsos, Konstantinia Tsagari, George Mantakas, Konstantinos Kaoukis, Athanassios Bourletsikas, and George Lyrintzis. "The Ecological Status of Juniperus foetidissima Forest Stands in the Mt. Oiti-Natura 2000 Site in Greece." Sustainability 13, no. 6 (March 23, 2021): 3544. http://dx.doi.org/10.3390/su13063544.
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Junipers face multiple threats induced both by climate and land use changes, impacting their expansion and reproductive dynamics. The aim of this work is to evaluate the ecological status of Juniperus foetidissima Willd. forest stands in the protected Natura 2000 site of Mt. Oiti in Greece. The study of the ecological status is important for designing and implementing active management and conservation actions for the species’ protection. Tree size characteristics (height, breast height diameter), age, reproductive dynamics, seed production and viability, tree density, sex, and habitat expansion were examined. The data analysis revealed a generally good ecological status of the habitat with high plant diversity. However, at the different juniper stands, subpopulations present high variability and face different problems, such as poor tree density, reduced numbers of juvenile trees or poor seed production, inadequate male:female ratios, a small number of female trees, reduced numbers of seeds with viable embryos, competition with other woody species, grazing, and illegal logging. From the results, the need for site-specific active management and interventions is demonstrated in order to preserve or achieve the good status of the habitat at all stands in the region.
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Hossain, Md Uzzal. "Survey on Common Practices of Vegetables Cultivation in Floating Bed at Barishal District, Bangladesh." ABC Research Alert 8, no. 3 (September 1, 2020): 99–106. http://dx.doi.org/10.18034/abcra.v8i3.485.
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Floating bed vegetable cultivation is now extended to wetland areas and long term water logging areas from southern parts of Bangladesh. Vegetables and other horticultural crops are now being cultivated in this method and getting popularity day by day. This method of cultivation is now providing numerous socio-economic, ecological and agricultural benefits towards climate change to local people. To face the circumstances from changed climate system effective adaptation actions and knowledge transfer is needed. This survey was conducted to find out socio-economic aspects, floral diversity cultivated, yield performance of cultivated crops, diversification of this technology, and also to find out the problems related to cultivation of this system. It was found that both sexes participate almost equally that leads to gender equity. In addition, a diversification in construction materials, fertilizers uses, yield purposes and crops cultivated were also found.
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Wang, Zhong, Huaping Wang, Treston Davis, Jing Li, Suming Wu, Wei Ren, and Richard Ce Liu. "Development of a directional resistivity logging-while-drilling tool using a joint-coil antenna and its geosteering applications." GEOPHYSICS 83, no. 5 (September 1, 2018): D165—D171. http://dx.doi.org/10.1190/geo2017-0780.1.
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Geosteering is a key technique to increase oil- and gas-production rates, especially within a thin reservoir layer. The purpose of geosteering in the production zone is to keep the drilling path in oil- and gas-bearing reservoirs. To keep the drilling system inside the production zone, downhole sensors must be able to detect bed boundaries, which include identifying the boundary location with respect to the sensor and the boundary distance from the sensor. We have developed a directional resistivity logging-while-drilling (LWD) tool for geosteering applications. The directional LWD tool is equipped with a joint-coil antenna composed of an axially polarized coil Rz connected in series with two transversely polarized coils Rx. During a revolution around the axis of the tool, the voltage of the axial coil VRz, voltage of the transverse coils VRx, and tool face angle [Formula: see text], which indicates the boundary direction, can be extracted through curve fitting the total voltage response of the joint-coil antenna. The distance to the boundary can be derived from a 1D inversion. The LWD tool has been tested in several reservoirs in China, and it has a demonstrated capability to provide reliable and accurate estimations of the boundary direction and distance. Field data indicate that the boundary detection depth can reach 2.1 and 1.7 m when the tool is in a sand and shale formation. Using wireline-logging data from surrounding wells as reference, deviations between the reference and the measured distance to the boundary are within 0.2 m.
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Van Pham, Hai, and Philip Moore. "A Proposal for Information Systems Security Monitoring Based on Large Datasets." International Journal of Distributed Systems and Technologies 9, no. 2 (April 2018): 16–26. http://dx.doi.org/10.4018/ijdst.2018040102.
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This article describes how the objective of recent advances in soft computing and machine learning models is the resolution of issues related to security monitoring for information systems. Most current techniques and models face significant limitations, in the monitoring of information systems. To address these limitations, the authors propose a new model designed to detect potential security breaches at an early stage using logging data. The proposed model uses unsupervised training techniques with a rule-based system to analyse data file logs. The proposed approach has been evaluated using a case study based on the learning of data file logs to determine the effectiveness of the proposed approach. Experimental results show that the proposed approach performs well, the results demonstrate that the proposed approach performs better than other conventional security methods in the identification of the correct decisions related to potential security in information systems.
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Kim, H., H. M. Kang, S. I. Choi, and S. Jeon. "Identifying relevant international forest regimes for South Korea based on their issues." International Forestry Review 22, no. 4 (December 1, 2020): 438–48. http://dx.doi.org/10.1505/146554820831255498.
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South Korea has focused on bilateral agreements to supply timber since the 1990s which requires cooperation with forest-related international organisations. This study analysed the relationship between South Korean and international forest regimes by identifying the issues these regimes face and analysing South Korea's contribution to these regimes. The study used data from an in-depth content analysis of key policy documents between South Korea and each of the regimes. The results confirm six forest-related international issues: Sustainable Forest Management, Sustainable Development Goals, forest land degradation and desertification, climate change, illegal logging, forest biodiversity, and species conservation. South Korea contributed to these regimes through cooperative initiatives and projects. This contribution, furthermore, directs other countries' participation to confront the issues. Most of the international forest-related issues in South Korea are derived from external elements such as international agreements or governances. South Korea also uses international regimes to encourage national goals.
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Henry, Kim, Aurélie Mayet, Miguel Hernandez, Guillaume Frechard, Pierre-Antoine Blanc, Marion Schmitt, Nathalie André, et al. "Outbreak of Cutaneous Leishmaniasis among military personnel in French Guiana, 2020: Clinical, phylogenetic, individual and environmental aspects." PLOS Neglected Tropical Diseases 15, no. 11 (November 19, 2021): e0009938. http://dx.doi.org/10.1371/journal.pntd.0009938.
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Background Cutaneous Leishmaniasis (CL) is endemic in French Guiana but cases are usually sporadic. An outbreak signal was issued on May 15th 2020 with 15 suspected cases after a military training course in the rainforest. An outbreak investigation was carried out. Methodology/Principal findings Thirty cases were confirmed. Leishmania guyanensis was the most frequent species (90%). The most frequent presentation was ulcerative (90%). Lesions on the face and hands were frequent (40% each). Eight cases (26%) presented a poor outcome after treatment with pentamidine and required a second line with amphotericin B. Three of them required further treatments with meglumine antimoniate or miltefosine. Two spots within the training area were deemed as likely sites of contamination, due to illegal logging. The isolated Leishmania strains did not form a separate cluster. Participation in Week 13 of year 2020 was associated with infection (OR = 4.59 [1.10–19.83]; p = 0.016) while undergoing only the “Fighting” exercise was protective (OR = 0.1 [0–0.74]; p = 0.021). There was no association between infection and other risk factors at the individual level. The attack rate of Regiment B (14/105 = 13.3%) was significantly higher (OR = 4.22 [1.84–9.53], p = 0.0001) compared to Regiment A (16/507 = 3.2%). The attack rate during this training course (30/858 = 3.5%) was significantly higher (OR 2.29 [1.28–4.13]; p = 0.002) than for other missions in French Guiana during the same period (22/1427 = 1.5%). Conclusions This outbreak could be explained by a combination of factors: climatic conditions around week 13, at-risk activities including night trainings, absence of impregnation, a lesser experience of rainforest duties in Regiment B and illegal logging attracting sandflies on military training grounds.
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Sanda, AR, and Jibrin Dibal. "Analysis of Irrigation Water Quality at Kadawa Irrigation Project for Improved Productivity." International Journal of Environment 3, no. 3 (September 13, 2014): 235–40. http://dx.doi.org/10.3126/ije.v3i3.11082.
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In the face of water scarcity and the several negative consequences, such as water wastage, flooding, water logging, soil losses and production losses, conserving the finite amount of fresh water is a must. The quality of irrigation water must therefore be ascertained. The chemical quality of three sources of irrigation water from canal and drainage water, namely drainage water, fresh irrigation water from canal, and drainage/irrigation water mixture, were analyzed from Kadawa irrigation Project for year 2013 and 2014 cropping seasons, with the view to evaluating the potential risks associated with their use in irrigation and hence their suitability or otherwise for irrigation purposes. The analysis revealed that the use of drainage water alone for irrigation may result in problems associated with salinity, while a blend of drainage/irrigation water in the ratio of 1:1 is a viable means of water conservation and a good means of crop production. DOI: http://dx.doi.org/10.3126/ije.v3i3.11082 International Journal of Environment Vol.3(3) 2014: 235-240
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Whitehouse, John F. "East Australian Rain-forests: A Case-study in Resource Harvesting and Conservation." Environmental Conservation 18, no. 1 (1991): 33–43. http://dx.doi.org/10.1017/s0376892900021263.
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Human interactions with rain-forest on the Australian continent have played, and will continue to play, a vital role in their distribution and survival. The presence and significance of rain-forest in Australia lies in the evolutionary history of the Australian plate since the break-up of the Gondwanan supercontinent. Its continued survival and distribution illustrates and encapsulates the history of plant evolution and biogeography in Australia.Since human arrival in Australia at least 40,000 years ago, human interactions with rain-forest have been marked by a number of phases — ranging from Aboriginal use of rain-forest resources to the impetus given by the hunt for the prized Red Cedar, and from the early European settlement on the east coast of Australia in the midto late-19th century to the wholesale clearing of rain forests for agricultural settlement and dairying in the late 19th century. In more modern times, human interactions with rain-forest have focused on adapting forest management techniques to rain-forest logging, restructuring the native forest timber industry in the face of mechanization, changing markets and resource constraints, convulsions as a result of conservationist challenges in Terania Creek and Daintree, and finally the implications of conserving rain-forests in the context of natural processes including fire, climate change, and the impact of human visitors and their recreation.The course of the controversies over rain-forest conservation in Australia has meant that rain-forest logging either has been dramatically curtailed or is in the process of generally ceasing. The protection of rainforests from logging and forestry operations in the future seems secure, given the widespread community support for rain-forest conservation. Threats to rain-forest conservation in the future are likely to be found in more subtle processes: the impact of fire regimes on the spread and contractions of rain-forests, the impacts of exotic species such as Lantana (Lantana camara) and Camphor Laurel (Cinnamomum camphora), the impacts of human uses through tourism and recreation, the diminution of the viability of isolated pockets by ‘edge effects’, and the damage to the remaining stands on freehold property by conflicting land-uses.Overlying all of these potential threats is the impact of global climate change. Climate change since the Tertiary has reduced the once widespread rain-forest communities of Australia practically to the status of relicts in refugia. Will the remaining rain-forests be able to withstand the projected human-induced climate changes of the future?
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Hoffmann, Stephan, Marian Schönauer, Joachim Heppelmann, Antti Asikainen, Emmanuel Cacot, Benno Eberhard, Hubert Hasenauer, et al. "Trafficability Prediction Using Depth-to-Water Maps: the Status of Application in Northern and Central European Forestry." Current Forestry Reports 8, no. 1 (January 8, 2022): 55–71. http://dx.doi.org/10.1007/s40725-021-00153-8.
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Abstract Purpose of Review Mechanized logging operations with ground-based equipment commonly represent European production forestry but are well-known to potentially cause soil impacts through various forms of soil disturbances, especially on wet soils with low bearing capacity. In times of changing climate, with shorter periods of frozen soils, heavy rain fall events in spring and autumn and frequent needs for salvage logging, forestry stakeholders face increasingly unfavourable conditions to conduct low-impact operations. Thus, more than ever, planning tools such as trafficability maps are required to ensure efficient forest operations at reduced environmental impact. This paper aims to describe the status quo of existence and implementation of such tools applied in forest operations across Europe. In addition, focus is given to the availability and accessibility of data relevant for such predictions. Recent Findings A commonly identified method to support the planning and execution of machine-based operations is given by the prediction of areas with low bearing capacity due to wet soil conditions. Both the topographic wetness index (TWI) and the depth-to-water algorithm (DTW) are used to identify wet areas and to produce trafficability maps, based on spatial information. Summary The required input data is commonly available among governmental institutions and in some countries already further processed to have topography-derived trafficability maps and respective enabling technologies at hand. Particularly the Nordic countries are ahead within this process and currently pave the way to further transfer static trafficability maps into dynamic ones, including additional site-specific information received from detailed forest inventories. Yet, it is hoped that a broader adoption of these information by forest managers throughout Europe will take place to enhance sustainable forest operations.
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SWIFT, PETER, and ANDREW COCK. "Traditional Khmer Systems of Forest Management." Journal of the Royal Asiatic Society of Great Britain & Ireland 25, no. 1 (October 2, 2014): 153–73. http://dx.doi.org/10.1017/s135618631400039x.
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AbstractAid donors, civil society groups and the Cambodian government have tended to focus their policy initiatives concerned with communities and their forests on Cambodia's indigenous minorities. Few attempts have been made to document the relationship between ethnic Khmers and forests. However, with almost three quarters of Cambodia covered with forests until quite recently, and a large proportion of the Khmer population living in proximity to forests, it is not surprising that Cambodia's dominant ethnic group has had a close and meaningful relationship with forests. In this article, we examine the traditional systems of forest management of Khmer social groups and how these systems are changing. We argue that traditional Khmer systems of forest management are still relevant in the context of the rapid changes that have occurred in rural Cambodia over the past two decades. These systems shape how Khmer groups make sense of the natural world and claim rights of tenure over forest areas. They continue to play a vital role in preserving Cambodia's natural forests in the face of deforestation driven by plantation schemes and logging operations.
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Sun, Siboyu, and Yude Geng. "Livelihood Resilience and Its Influencing Factors of Worker Households in the Face of State-Owned Forest Areas Reform in China." Sustainability 14, no. 3 (January 25, 2022): 1328. http://dx.doi.org/10.3390/su14031328.
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To promote the sustainable development of state-owned forest areas, the Chinese government announced the reform of state-owned forest areas in 2015. It mainly includes the logging ban of natural forests and the separation of government and enterprises. Timely investigation of the changes in the livelihood resilience of worker households before and after the reform of state-owned forest areas is of great significance to the sustainable development of state-owned forest areas. With the application of livelihood resilience theory, we established an evaluation index system from three dimensions of buffer capacity, self-organization, and learning capacity. Taking five forest industry enterprises operating state-owned forest areas in Northeast and Inner Mongolia in China as an example, we measured worker households’ livelihood resilience, and identified the key factors of worker households’ livelihood resilience. The results showed: (1) The reform of state-owned forest areas has improved the livelihood resilience of worker households in Longjiang, Daxing’anling, Inner Mongolia, and Jilin forest industry groups, but reduced the livelihood resilience of worker households in Changbai Mountain forest industry groups. (2) With the advancement of the reform of state-owned forest areas, the gap of livelihood resilience of worker households of forest industry groups shows an expanding trend. (3) The influencing factors that affect the worker households’ livelihood resilience of various forest industry groups are similar. Among them, the education of household head, household head health, household size, work experience, and neighborhood relationships are the key factors that affect the resilience of worker households.
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Lane, Jan-Erik. "Latin America and the Cop21 Agreement: A Most Severe Implementation Problematic." Journal of Economics and Public Finance 3, no. 1 (February 16, 2017): 107. http://dx.doi.org/10.22158/jepf.v3n1p107.
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<p><em>As the Latin American countries have hardly started developing implementation strategies of the agreed upon COP21 objectives, their situation should be more researched. The CO2:s are really high in 2 countries but medium in all the others; Mexico and Brazil that face enormous difficulties with global warming. Thus, the dominant energy reliance remains much fixed upon oil and natural gas, but with some third component like hydro, geothermal or biomass power. Hydro power is used much but it presents a risk as it requires lots of water, which further global warming may deny—look at Venezuela today. Brazil’s plans for 30 new dams in the Amazons together with ongoing logging and new agriculture will destroy the rain forest Major investments in wind, solar, geo-thermal power or/and nuclear power are called for, besides the plenty biomass and hydro power. But to make a great energy transformation towards renewables and atomic power, the Latin American countries need massive assistance from the promised Super Fund. Only Uruguay has come far with the changes towards renewables, producing electricity with 100% renewables, including wind power.</em></p>
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Han, Jian, Pan Gao, Zhimin Cao, Jing Li, Sijie Wang, and Can Yang. "Well log data super-resolution based on locally linear embedding." Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles 76 (2021): 63. http://dx.doi.org/10.2516/ogst/2021042.
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Unconventional remaining oil and gas resources such as tight oil, shale oil, and coalbed gas are currently the focus of the exploration and development of major oil fields all over the world. Therefore, to make best understand of target reservoirs, enhancing the vertical resolution of well log data is crucial important. However, in the face of the continuous low-level fluctuations of international oil price, large scale use of expensive high resolution well logging hardware tools has always been unaffordable and unacceptable. In another aspect, traditional well log interpolation methods can always not realize high reliable information enhancement for crucial high frequency components. In this paper, in order to improve the well log data super-resolution performance, we propose for the first time to employ Locally Linear Embedding (LLE) technique to reveal the nonlinear mapping relationship between 2-times-scale-difference well log data. Several super resolution experiments with well log data from a given area of Daqing Oil field, China, were conducted. Experimental results illustrated that the proposed LLE-based method can efficiently achieve more reliable super-resolution results than other state-of-the-art methods.
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Stare, Darja, Petra Grošelj, and Špela Pezdevšek Malovrh. "Ovire in rešitve pri sanaciji v ujmah poškodovanih zasebnih gozdov." Acta Silvae et Ligni 123 (2020): 23–30. http://dx.doi.org/10.20315/asetl.123.2.
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Frequent natural disasters in recent years have been a major challenge in private forest management and have led to increased activity among all stakeholders along the forest-wood chain. In this paper, we reviewed the literature on salvage logging in private forests damaged by natural disasters, with the aim of identifying the barriers that private forest owners face in salvaging and solutions for faster and more efficient salvaging. After reviewing the relevant literature, we included 59 articles and 25 reports in the final analysis. The results showed that researchers have not yet systematically addressed the identification of barriers. We identified 51 barriers, which we classified into 7 groups, and 68 solutions, which we classified into 11 groups. Most researchers have dealt with barriers from the 'Characteristics of private forest owners' group and solutions from the 'Stakeholder Cooperation' group. Finally, we associated the identified barriers with appropriate salvaging solutions and found that all identified solutions represent a solution for at least one of the barriers and that each barrier has at least one solution. The research represents the first, but important, step in identifying the decision-making factors for salvaging in private forests damaged by natural disasters.
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Nwankwoala, H. O. "Case Studies on Coastal Wetlands and Water Resources in Nigeria." European Journal of Sustainable Development 1, no. 2 (June 1, 2012): 113. http://dx.doi.org/10.14207/ejsd.2012.v1n2p113.
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Wetlands play a very important role in the sustenance of both the surface andgroundwater resources of the country. It is sad to observe that the country is fast losingher wetlands, as the rich wetlands are being seriously threatened by a number ofanthropogenic and biophysical factors. Some of the notable human actions includepopulation pressure, rapid urbanization, mining, oil and industrial waste pollution,overgrazing, logging, dam construction, transportation routes and other physicalinfrastructure. Others factors are uncontrolled tilling for crop production andunprecedented/unregulated land reclamation. Subsidence, saltwater intrusion, sandstorm, desertification and droughts, invasion by alien floral and faunal species as well asmarine and coastal erosion are natural threats to wetlands in Nigeria. Wetlandsdestruction affects negatively water supply and water resources management. This studyexamines in great detail the fate of wetlands in the face of climate change andrecommends that efforts should be made to accurately document the country’s wetland.The paper therefore suggested sustainable options for wetlands and water resourcesmanagement in Nigeria. This, the paper opined, can be done through the strengtheningof wetlands preservation and conservation regulation, mitigating the effects of climatechange as well as the development of deliberate restoration programmes and policiesaimed at sustaining degraded wetlands in Nigeria.
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Shanee, Sam, Lorena Fernández-Hidalgo, Nestor Allgas, Veronica Vero, Raul Bello-Santa Cruz, Mark Bowler, Mrinalini Erkenswick Watsa, et al. "Threat Analysis of Forest Fragmentation and Degradation for Peruvian Primates." Diversity 15, no. 2 (February 15, 2023): 276. http://dx.doi.org/10.3390/d15020276.
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Peru has 55 primate taxa (including all species and subspecies), a third of which are threatened. The major drivers of habitat loss, degradation and fragmentation are grazing, forestry, agriculture and transport infrastructure. Other activities such as hunting exacerbate these threats. We assessed the threats from degradation and fragmentation facing Peruvian primates to aid in the design and implementation of mitigation strategies. Through GIS-based mapping, statistical modeling and specialist assessments, we evaluated all primate taxa using the IUCN Conservation Measures Partnership Unified Classifications of Direct Threats across five categories (direct threats to primates, threats to habitat, causes of fragmentation, factors exacerbating fragmentation and threats to primates and habitats as a consequence of fragmentation), highlighting which were most common and most severe. Our results showed that all primate taxa were affected by degradation and fragmentation in Peru. The most common and severe direct threat was hunting, whereas housing and urban development, smallholder crop farming, smallholder grazing and large-scale logging were the most common and severe threats across the other categories. The families Cebidae and Atelidae face the highest overall threat. Our analysis showed that the current IUCN listing of Leontocebus leucogenys [LC] underestimates the true threat level this species faces and that Lagothrix lagothricha tschudii [DD] should be listed under one of the threat categories. In Peru, the need for mitigating the threat of habitat fragmentation is clear. To ensure the survival of Peru’s diverse primate taxa, forest connectivity needs to be maintained or recovered through the protection and restoration of key areas considering their biological and social needs.
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van der Vaart, Rosalie, Dorine van Driel, Kristel Pronk, Suzan Paulussen, Selma te Boekhorst, Judith G. M. Rosmalen, and Andrea W. M. Evers. "The Role of Age, Education, and Digital Health Literacy in the Usability of Internet-Based Cognitive Behavioral Therapy for Chronic Pain: Mixed Methods Study." JMIR Formative Research 3, no. 4 (November 21, 2019): e12883. http://dx.doi.org/10.2196/12883.
Повний текст джерелаАнотація:
Background Internet-based cognitive behavior therapy (iCBT) can be effective in mental and somatic health care. Research on the feasibility of internet interventions in clinical practice is, however, still scarce. Studies with a focus on the patient regarding usability of interventions and digital health literacy skills are especially lacking. Objective The goal of this study was to assess the usability of an iCBT for chronic pain, Master Your Pain, and the relationship between its usability outcomes and the factors age, educational level, and digital health literacy skills. The aims were to determine what changes were needed in the program for sufficient usability and which individual characteristics were related to the usability of the program. Methods Patients were recruited from two mental health care practices. A mixed methods approach was used in this study. A qualitative observational study comprising performance tasks in the iCBT program was used to test usability. A quantitative questionnaire was used to measure possible related constructs. Usability was operationalized as the number of tasks that could be completed and the type and number of problems that occurred while doing so. Performance tasks were set up to measure 6 digital skills: (1) operating the computer and internet browser, (2) navigation and orientation, (3) using search strategies, (4) evaluating relevance of content, (5) adding personal content, and (6) protecting and respecting privacy. Participants were asked to think aloud while performing the tasks, and screen activities and webcam recordings were captured. The qualitative observational data was coded using inductive analysis by two independent researchers. Correlational analyses were performed to test how usability relates to sociodemographics and digital health literacy. Results A total of 32 patients participated, with a mean age of 49.9 years and 84% (27/32) being female. All performance tasks except one (fill in a diary registration) could be completed independently by more than 50% of the participants. On operational, navigation, and search levels, participants struggled most with logging in, logging out, and finding specific parts of the intervention. Half of the sample experienced problems evaluating the relevance and adding content to the program to some extent. Usability correlated moderately negatively with age and moderately positively with digital health literacy skills but not with educational level. Conclusions The results provide insight into what is essential for proper usability regarding the design of an iCBT program considering variations in age, educational level, and digital health literacy. Furthermore, the results provide insight into what type of support is needed by patients to properly use the intervention. Tailoring support among the needs of certain age groups or skill levels could be beneficial and could range from no extra support (only online feedback, as intended) to practical support (an additional usability introduction session) to blended care (combined face-to-face sessions throughout the therapy).
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Martyshov, M. I., та D. A. Nikitenko. "Предварительная обработка данных системного мониторинга для анализа профиля загрузки высокопроизводительных вычислительных систем". Numerical Methods and Programming (Vychislitel'nye Metody i Programmirovanie), № 3 (14 вересня 2021): 229–37. http://dx.doi.org/10.26089/nummet.v22r314.
Повний текст джерелаАнотація:
HPC systems are complex in architecture and contain millions of components. To ensure reliable operation and efficient output, functioning of most subsystems should be supervised. This is done on the basis of collected data from various logging and monitoring systems. This means that different data sources are used, and accordingly, data analysis can face multiple issues processing this data. Some of the data subsets can be incorrect due to the malfunctioning of used sensors, monitoring system data aggregation errors, etc. This is why it is crucial to preprocess such monitoring data before analyzing it, taking into the consideration the analysis goals. The aim of this paper is, being based on the MSU HPC Center monitoring data, to propose an approach to data preprocessing of HPC monitoring systems, giving some real life examples of issues that may be faced, and recommendations for further analysis of similar datasets. Высокопроизводительные вычислительные системы сложны по архитектуре и содержат миллионы компонент. Чтобы обеспечить надежную работу и эффективную отдачу, необходимо контролировать работу всех их подсистем. Это делается на основе данных, собранных различными системами журналирования и мониторинга. Это означает, что используются разные источники данных, и, соответственно, анализ данных может столкнуться с множеством проблем, связанных с обработкой этих данных. Некоторые из подмножеств данных могут быть неверными из-за неисправности используемых датчиков, ошибок агрегирования данных системы мониторинга и т.д. Вот почему крайне важно проводить предварительную обработку таких данных мониторинга перед их анализом, принимая во внимание цели анализа. Цель этой работы, описать подход к предварительной обработке данных суперкомпьютерных систем мониторинга на основе опыта работы СКЦ МГУ, привести некоторые реальные примеры проблем, с которыми можно при этом столкнуться, а также рекомендации по дальнейшему анализу подобных наборов данных.
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Batiuk, Taras, and Victoria Vysotska. "Information Support for Personalities Socialization Processes Based on Common Interests." Vìsnik Nacìonalʹnogo unìversitetu "Lʹvìvsʹka polìtehnìka". Serìâ Ìnformacìjnì sistemi ta merežì 11 (June 15, 2022): 56–86. http://dx.doi.org/10.23939/sisn2022.11.056.
Повний текст джерелаАнотація:
The main objective of this article is to create an information system project for socialization by personal interests on the basis of SEO-technologies and methods of machine learning. The main purpose of this information system is to identify the user within the system using neural networks and to select similar users by analysing the user's current information. An information system was created that, through Identity and JWT tokens, provides optimized and secure authorization, logging, and support functions for the current system user session. Finding a face in a user's photo and checking the presence of a similar user in the database are implemented using convolutional and Siamese neural networks. The analysis and formation of similar user beeps were implemented using fuzzy search algorithms, the Levenshtein algorithm and the Noisy Channel model, which made it possible to maximize the automation of the user selection process and to optimize the time spent in this process. Tools have also been created to view other users’ profiles, preferences and private correspondence. All private correspondence and information about it are stored in the current database. Each user of the system can view all information about sent and received messages. The created information system implements the process of user identification, analysis, selection and further socialization of system users.
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MacLeod, Anna, and Cathy Fournier. "Residents’ use of mobile technologies: three challenges for graduate medical education." BMJ Simulation and Technology Enhanced Learning 3, no. 3 (April 10, 2017): 99–105. http://dx.doi.org/10.1136/bmjstel-2016-000185.
Повний текст джерелаАнотація:
IntroductionThe practice of medicine involves, among other things, managing ambiguity, interpreting context and making decisions in the face of uncertainty. These uncertainties, amplified for learners, can be negotiated in a variety of ways; however, the promise, efficiency and availability of mobile technologies and clinical decision supports make these tools an appealing way to manage ambiguity.Mobile technologies are becoming increasingly prevalent in medical education and in the practice of medicine. Because of this, we explored how the use of mobile technologies is influencing residents’ experiences of graduate medical education.MethodsWe conducted an 18-month qualitative investigation to explore this issue. Our research was conceptually and theoretically framed in sociomaterial studies of professional learning. Specifically, our methods included logging of technology use and related reflexive writing by residents (n=10), interviews with residents (n=12) and interviews with faculty (n=6).ResultsWe identified three challenges for graduate medical education related to mobile technology use: (1) efficiency versus critical thinking; (2) patient context versus evidence-based medicine and (3) home/work-life balance.DiscussionIn this digital age, decontextualised knowledge is readily available. Our data indicate that rather than access to accurate knowledge, the more pressing challenge for medical educators is managing how, when and why learners choose to access that information.
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Busse, Monica, Julie Latchem-Hastings, Kate Button, Vince Poile, Freya Davies, Rhian O' Halloran, Barbara Stensland, et al. "Web-based physical activity intervention for people with progressive multiple sclerosis: application of consensus-based intervention development guidance." BMJ Open 11, no. 3 (March 2021): e045378. http://dx.doi.org/10.1136/bmjopen-2020-045378.
Повний текст джерелаАнотація:
ObjectivesPeople with progressive multiple sclerosis (PwPMS) report that they recognise the benefits of activity on their physical and psychological health but need support to achieve their physical activity goals. We aimed to systematically develop a theoretically informed intervention that would enable PwPMS to more readily engage in regular physical activity.DesignWe used an intervention mapping approach to inform intervention development.SettingWe conducted semistructured interviews with PwPMS and their families/carers and physiotherapists recruited from secondary care settings.ParticipantsFourteen PwPMS with an Expanded Disability Status Scale score of between 6 and 8 and 7 of their families/carers and 13 physiotherapists and 1 physiotherapy technician participated.ResultsInterview data suggested that the development of supportive coaching relationships with physiotherapists could promote the ability of PwPMS to achieve a desirable and achievable physical activity plan. These interview data informed the prototype ‘Lifestyle Exercise and Activity Package for Multiple Sclerosis’ (LEAP-MS) consisting of a secure multiuser web-based platform (with an education and activity suite, interactive components enabling selection of exercises, goal setting and activity logging), up to six flexible face-to-face or web-based physiotherapy coaching sessions and remote support via an embedded web-based messaging function that all together draw on specific theory-based methods to achieve physical activity behaviour change, namely active learning, reinforcement, modelling, feedback, facilitation, goal setting and guided practice. Implementation is within a multiuser platform accessible to participants, trained physiotherapists and researchers.ConclusionsWe have followed an inclusive, systematic and transparent process to develop the LEAP-MS intervention that enables detailed description of components, context and guiding principles to inform ongoing evaluation. Importantly, PwPMS expressed the need for autonomy in developing physical activity plans. This has been achieved through the embedding of self-management principles in the design and delivery of the LEAP-MS intervention.
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Hatcher, Simon, Robyn Whittaker, Murray Patton, Wayne Sylvester Miles, Nicola Ralph, Katharina Kercher, and Cynthia Sharon. "Web-based Therapy Plus Support by a Coach in Depressed Patients Referred to Secondary Mental Health Care: Randomized Controlled Trial." JMIR Mental Health 5, no. 1 (January 23, 2018): e5. http://dx.doi.org/10.2196/mental.8510.
Повний текст джерелаАнотація:
Background The evidence for the effectiveness of Web-based therapies comes mainly from nonclinical populations, with a few studies in primary care. There is little evidence from patients referred to secondary mental health care with depression. Adherence to Web-based therapies is often poor. One way to increase this is to create a new health service role of a coach to guide people through the therapy. Objective This study aimed to test in people referred to secondary care with depression if a Web-based therapy (The Journal) supported by a coach plus usual care would be more effective in reducing depression compared with usual care plus an information leaflet about Web-based resources after 12 weeks. Methods We conducted a randomized controlled trial with two parallel arms and a process evaluation that included structured qualitative interviews analyzed using thematic analysis. The coach had a background in occupational therapy. Participants were recruited face-to-face at community mental health centers. Results We recruited 63 people into the trial (intervention 35, control 28). There were no statistically significant differences in the change from baseline in Patient Health Questionnaire-9 (PHQ-9) scores at 12 weeks comparing The Journal with usual care (mean change in PHQ-9 score 9.4 in the intervention group and 7.1 in the control group, t41=1.05, P=.30; mean difference=2.3, 95% CI −2.1 to 6.7). People who were offered The Journal attended on average about one less outpatient appointment compared with usual care, although this difference was not statistically significant (intervention mean number of visits 2.8 (SD 5.5) compared with 4.1 (SD 6.7) in the control group, t45=−0.80, P=.43; mean difference=1.3, 95% CI −4.5 to 2.0). The process evaluation found that the mean number of lessons completed in the intervention group was 2.5 (SD=1.9; range=0-6) and the number of contacts with the coach was a mean of 8.1 (SD=4.4; range=0-17). The qualitative interviews highlighted the problem of engaging clinicians in research and their resistance to recruitment: technical difficulties with The Journal, which prevented people logging in easily; difficulty accessing The Journal as it was not available on mobile devices; participants finding some lessons difficult; and participants saying they were too busy to complete the sessions. Conclusions The study demonstrated that it is feasible to use a coach in this setting, that people found it helpful, and that it did not conflict with other care that participants were receiving. Future trials need to engage clinicians at an early stage to articulate where Web-based therapies fit into existing clinical pathways; Web-based therapies should be available on mobile devices, and logging in should be easy. The role of the coach should be explored in larger trials. Trial Registration Australian New Zealand Clinical Trials Registry (ACTRN): 12613000015741; https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=363351&isReview=true (Archived by WebCite at http://www.webcitation.org/6wEyCc6Ss).