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Journal articles on the topic 'Maximal frequency selection'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Soriano, Jonathan, and Sarah Marzen. "How Well Can We Infer Selection Benefits and Mutation Rates from Allele Frequencies?" Entropy 25, no. 4 (2023): 615. http://dx.doi.org/10.3390/e25040615.

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Experimentalists observe allele frequency distributions and try to infer mutation rates and selection coefficients. How easy is this? We calculate limits to their ability in the context of the Wright-Fisher model by first finding the maximal amount of information that can be acquired using allele frequencies about the mutation rate and selection coefficient– at least 2 bits per allele– and then by finding how the organisms would have shaped their mutation rates and selection coefficients so as to maximize the information transfer.

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2

Luhanga, Matthew L. "Packet Error Probability for Diversity Systems in Slow Rayleigh Fading and Gaussian Noise." International Journal of Electrical Engineering & Education 23, no. 3 (1986): 239–44. http://dx.doi.org/10.1177/002072098602300309.

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Analytical results on packet error probability for noncoherent frequency-shift-keying (NCFSK) and differential phase-shift-keying (DPSK) systems with diversity reception operating over slow Rayleigh fading channels with Gaussian noise are derived. Expressions obtained are applicable to two linear combining schemes: selection combining and maximal-ratio combining.

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3

Ma, Debiao, Junteng Zheng, and Lizhi Peng. "Performance Evaluation of Epileptic Seizure Prediction Using Time, Frequency, and Time–Frequency Domain Measures." Processes 9, no. 4 (2021): 682. http://dx.doi.org/10.3390/pr9040682.

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The prediction of epileptic seizures is crucial to aid patients in gaining early warning and taking effective intervention. Several features have been explored to predict the onset via electroencephalography signals, which are typically non-stationary, dynamic, and varying from person-to-person. In the former literature, features applied in the classification have shared similar contributions to all patients. Therefore, in this paper, we analyze the impact of the specific combination of feature and channel from time, frequency, and time–frequency domains on prediction performance of disparate

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Kuroha, Akihiro, Chang-Jun Ahn, Tatsuya Omori, and Ken-ya Hashimoto. "Multiuser Diversity OFDMA using Power Priority Selection and Adaptive Clipping." International Journal of Distributed Systems and Technologies 5, no. 4 (2014): 18–30. http://dx.doi.org/10.4018/ijdst.2014100102.

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In recent, orthogonal frequency division multiple access (OFDMA) has been used for a multiuser wireless communication. In a wireless network, the transmitted signal of each user has independent channel fluctuation characteristic. By using this characteristic, OFDMA can achieve the multiuser diversity (MUDiv). Until this time, to achieve a low complexity and performance improvement, the adaptive subcarrier block (ASB) and frequency symbol spreading (FSS) methods have been proposed. However, the system performance in a low Eb/N0 is worse than that of maximal sum capacity (MSC) and peak to averag

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Marden, J. H., M. R. Wolf, and K. E. Weber. "Aerial performance of Drosophila melanogaster from populations selected for upwind flight ability." Journal of Experimental Biology 200, no. 21 (1997): 2747–55. http://dx.doi.org/10.1242/jeb.200.21.2747.

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A computerized system for three-dimensional tracking of large numbers of individual free-flying insects was used to assess the performance of Drosophila melanogaster from populations that had undergone 160 generations of selection for upwind flight ability. Compared with control lines, the selected lines showed significant increases in mean flight velocity, decreases in angular trajectory and a significant change in the interaction between velocity and angular trajectory. Maximal flight velocity was apparent as a sharply defined upper boundary of the distribution of horizontal and vertical vel

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Trinh, Le-Huy, and Fabien Ferrero. "Multiband Frequency Tuneable Antennas for Selection Combining Strategy in White Space Applications." Applied Sciences 12, no. 21 (2022): 11062. http://dx.doi.org/10.3390/app122111062.

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This article presents a reconfigurable antenna using digitally tuneable capacitors (DTCs). Mounted on a 120 × 200 mm2 ground plane, the radiating element has very compact dimensions of 0.06λg × 0.016λg × 0.0016λg (with λg being the wavelength at 585 MHz). The proposed structure could be operated in the white-space frequency band from 470 to 700 MHz. The antenna system is composed of two radiated elements that are placed at the corner of the board. The active components were soldered onto the antennas and controlled by an embedded microcontroller via the I2C interface. Antenna impedances were s

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7

Bendelac, A., P. Matzinger, R. A. Seder, W. E. Paul, and R. H. Schwartz. "Activation events during thymic selection." Journal of Experimental Medicine 175, no. 3 (1992): 731–42. http://dx.doi.org/10.1084/jem.175.3.731.

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During their differentiation in the mouse thymus, CD4+8- cells undergo several of the sequential changes observed upon normal activation of mature, peripheral CD4+ lymphocytes. Expression of CD69, an early activation marker, is first observed on a minority of cells at the T cell receptor (TCR)lo/med double-positive stage, is maximal (50-90%) on heat-stable antigen (HSA)hi TCRhi double-positive, HSAhi TCRmed CD4+8lo, and HSAhi TCRhi CD4+8- cells, and is downmodulated at the mature HSAlo CD4+8- stage. In contrast, CD44, a late activation marker, is selectively expressed at the HSAlo stage. The s

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8

GRYLLIAS, KONSTANTINOS C., and IOANNIS ANTONIADIS. "A PEAK ENERGY CRITERION (P. E.) FOR THE SELECTION OF RESONANCE BANDS IN COMPLEX SHIFTED MORLET WAVELET (CSMW) BASED DEMODULATION OF DEFECTIVE ROLLING ELEMENT BEARINGS VIBRATION RESPONSE." International Journal of Wavelets, Multiresolution and Information Processing 07, no. 04 (2009): 387–410. http://dx.doi.org/10.1142/s0219691309002982.

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Complex Shifted Morlet Wavelets (CSMW) present a number of advantages when used for the demodulation of the vibration response of defective rolling element bearings: (A) They present the optimally located window simultaneously in the time and in the frequency domains; (B) They allow for the maximal time-frequency resolution; (C) The magnitudes of the complex wavelet coefficients in the time domain lead directly to the required envelope; (D) They allow for the optimal selection of both the center frequency and the bandwidth of the requested filter. A Peak Energy criterion (P. E.) is proposed in

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9

Moiseev, A. A. "Model-based estimation of radio parameters." Radio industry 28, no. 3 (2018): 31–45. http://dx.doi.org/10.21778/2413-9599-2018-28-3-31-45.

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It’s proposed to use model-based approach for evaluation of radiation parameters observed by passive location facilities. This method is based on model parameters adjustment and interpretation of correspondent parameters values as experimental parameters evaluations. Evaluation adequacy criterion in this case is maximal probability of overlapping of experimental and model ranges of parameters. Preliminary objects selection can be based on frequency or/end directional characteristics of received signals. A possible selection criterion is based on discrimination conditions of frequency and time

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10

Smerlak, M. "Neutral quasispecies evolution and the maximal entropy random walk." Science Advances 7, no. 16 (2021): eabb2376. http://dx.doi.org/10.1126/sciadv.abb2376.

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Even if they have no impact on phenotype, neutral mutations are not equivalent in the eyes of evolution: A robust neutral variant—one which remains functional after further mutations—is more likely to spread in a large, diverse population than a fragile one. Quasispecies theory shows that the equilibrium frequency of a genotype is proportional to its eigenvector centrality in the neutral network. This paper explores the link between the selection for mutational robustness and the navigability of neutral networks. I show that sequences of neutral mutations follow a “maximal entropy random walk,

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11

Adeeb, Salh, Audah Lukman, Shahida M. Shah Nor, and A. Hamzah Shipun. "Adaptive Antenna Selection and Power Allocation in Downlink Massive MIMO Systems." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 6 (2017): 3521–28. https://doi.org/10.11591/ijece.v7i6.pp3521-3528.

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Massive multi-input, multi-output (MIMO) systems are an exciting area of study and an important technique for fifth-generation (5G) wireless networks that support high data rate traffic. An increased number of antenna arrays at the base station (BS) consumes more power due to a higher number of radio frequency (RF) chains, which cannot be neglected and becomes a technical challenge. In this paper, we investigated how to obtain the maximal data rate by deriving the optimal number of RF chains from a large number of available antenna arrays at the BS when there is equal power allocation among us

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12

Pinho, João Pedro, Bruno Mezêncio, Desidério Cano Porras, Julio Cerca Serrão, and Alberto Carlos Amadio. "Relationship Between Knee Extensors Power Output and Vastus Lateralis EMG Activation in Elderly Women: Influence of Mother Wavelet Selection." Open Sports Sciences Journal 10, no. 1 (2017): 263–71. http://dx.doi.org/10.2174/1875399x01710010263.

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Purpose:The main objective of this study was to compare frequency parameters produced by six mother wavelets pinpointing the most feasible to investigate electromyographic (EMG) parameters while producing knee extension power in elderly women. The influence of different load conditions in mother wavelet selection and power output were also analyzed.Methods:Thirteen sedentary elderly women (69.3 ± 4.1 years) took part in the study. Participants executed 6 repetitions of 3 load condition (30%, 50% and 70% of the maximal) with the concentric phase of the knee extension movement as quickly as poss

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13

Gorbachova, Liudmyla O., Viktoria S. Prykhodkina, and Borys F. Khrystiuk. "Spring flood frequency analysis in the Southern Buh River Basin, Ukraine." Journal of Geology, Geography and Geoecology 30, no. 2 (2021): 250–60. http://dx.doi.org/10.15421/112122.

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   The river floods are among the most dangerous natural disasters in the world. Each year, the spring floods cause the significant material damage in the different countries, including Ukraine. Knowledge of trends in such floods, as well as their probabilistic forecast, is of great scientific and practical importance. In last decades, the decreasing phase of cyclical fluctuations of the maximum runoff of spring floods has been observed on the plain rivers of Ukraine, including the Southern Bug River. In addition, there is an increase in air temperature. So, the actual task i

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14

Moiseev, A. A. "Improved rank selection algorithm." Radio industry (Russia) 31, no. 1 (2021): 37–44. http://dx.doi.org/10.21778/2413-9599-2021-31-1-37-44.

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Problem statement. A rank algorithm for selecting radio emission modes for operation in conditions of heterogeneity of sources and complex interference conditions, including the possible presence of mutual interference, is synthesized.Objective. The synthesis purpose is to ensure the independence of mode recognition from particular features of radio emission observation. Algorithm input is the primary signal processing result that includes such estimations as pulses durability, frequency and amplitude dynamics, and absolute variations. Primary decision statistics are formed using these values:

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15

Camporeale, Carlo, and Peter J. Schmid. "Parametric resonance in unsteady watertable flow." Journal of Fluid Mechanics 768 (March 12, 2015): 524–48. http://dx.doi.org/10.1017/jfm.2015.105.

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The stability of unsteady open-channel flow down an inclined plane is studied using an iterative approach based on the direct and adjoint stability equations combined with a physically justified energy measure. An efficient parametric resonance mechanism has been identified between the exogenous base-flow oscillations and the intrinsic frequencies of streamwise disturbance vortices. This resonance results in strong amplification over a substantial range of the governing parameters, favouring streamwise elongated structures. The optimal frequency for a maximal disturbance response can be effici

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16

LIU, HAN-BING, and YU-BO JIAO. "APPLICATION OF GENETIC ALGORITHM-SUPPORT VECTOR MACHINE (GA-SVM) FOR DAMAGE IDENTIFICATION OF BRIDGE." International Journal of Computational Intelligence and Applications 10, no. 04 (2011): 383–97. http://dx.doi.org/10.1142/s1469026811003215.

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A support vector machine (SVM) optimized by genetic algorithm (GA)-based damage identification method is proposed in this paper. The best kernel parameters are obtained by GA from selection, crossover and mutation, and utilized as the model parameters of SVM. The combined vector of mode shape ratio and frequency rate is used as the input variable. A numerical example for a simply supported bridge with five girders is provided to verify the feasibility of the method. Numerical simulation shows that the maximal relative errors of GA-SVM for the damage identification of single, two and three susp

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17

Chen, Xueliang, Baojia Chen, and Zhengkun Chen. "Research on Fault Feature Extraction of Rolling Bearing Based on dFIF." Journal of Physics: Conference Series 2181, no. 1 (2022): 012044. http://dx.doi.org/10.1088/1742-6596/2181/1/012044.

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Abstract Aiming at the problems that the traditional adaptive mode decomposition method has low decomposition efficiency, poor ability of anti-mode mixing and decomposition accuracy, a rolling bearing fault feature recognition method based on direct fast iterative filtering (dFIF) and the crest factor of envelope spectrum is proposed. dFIF first decomposes the raw rolling bearing vibration signal into a set of intrinsic mode function (IMFs), then the optimal component is chosen based on the maximal crest factor of envelope spectrum, and finally the bearing fault characteristic frequency and it

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18

Pozuelo-Carrascosa, Diana P., Juan Manuel Carmona-Torres, José Alberto Laredo-Aguilera, Pedro Ángel Latorre-Román, Juan Antonio Párraga-Montilla, and Ana Isabel Cobo-Cuenca. "Effectiveness of Respiratory Muscle Training for Pulmonary Function and Walking Ability in Patients with Stroke: A Systematic Review with Meta-Analysis." International Journal of Environmental Research and Public Health 17, no. 15 (2020): 5356. http://dx.doi.org/10.3390/ijerph17155356.

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Background: Neurological dysfunction due to stroke affects not only the extremities and trunk muscles but also the respiratory muscles. Aim: to synthesise the evidence available about the effectiveness of respiratory muscle training (RMT) to improve respiratory function parameters and functional capacity in poststroke patients. Methods: a systematic electronic search was performed in the MEDLINE, EMBASE, SPORTDiscus, PEDro and Web of Science databases, from inception to May 2020. Study selection and data extraction: randomised controlled trials (RCTs) that examined the effects of RMT versus no

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19

Salh, Adeeb, Lukman Audah, Nor Shahida M Shah, and Shipun A. Hamzah. "Adaptive Antenna Selection and Power Allocation in Downlink Massive MIMO Systems." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 6 (2017): 3521. http://dx.doi.org/10.11591/ijece.v7i6.pp3521-3528.

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Massive multi-input, multi-output (MIMO) systems are an exciting area of study and an important technique for fifth-generation (5G) wireless networks that support high data rate traffic. An increased number of antenna arrays at the base station (BS) consumes more power due to a higher number of radio frequency (RF) chains, which cannot be neglected and becomes a technical challenge. In this paper, we investigated how to obtain the maximal data rate by deriving the optimal number of RF chains from a large number of available antenna arrays at the BS when there is equal power allocation among us

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20

Yadnya, Made sutha, Suthami Ariessaputra, and Natasya Dewi Astuti. "CHANNEL SELECTION SIMULATION WITH RAIN CONDITIONS WITH COMPARISON OF SIGNAL STRENGTH OF RECEIVER EXISTING 5G NETWORK FREQUENCY 2.3 GHZ." DIELEKTRIKA 10, no. 2 (2023): 189–94. http://dx.doi.org/10.29303/dielektrika.v10i2.347.

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The 5G network has been used in Grand Prix 1 (GP-1) in Indonesia. In accordance with the permission granted by the Ministry of Communication and Information with a working frequency of below 900 MHZ, mid 2.3 GHz, and high 28 GHz. One of the advantages of 5G is that the download speed reaches 20 Gpbs per user using high frequencies. This study simulates by analyzing the effect of 5G network performance when there is rain attenuation which can reduce signal quality. Then a centralized RAN (C-RAN) architectural scenario is created when the BTS is dampened by rain for each of its links. Then calcu

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21

Szulborski, Michał, Sebastian Łapczyński, Łukasz Kolimas, Łukasz Kozarek, and Desire Dauphin Rasolomampionona. "Calculations of Electrodynamic Forces in Three-Phase Asymmetric Busbar System with the Use of FEM." Energies 13, no. 20 (2020): 5477. http://dx.doi.org/10.3390/en13205477.

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Proper busbar selection based on analytical calculations is of great importance in terms of power grid functioning and its safe usage. Experimental tests concerning busbars are very expensive and difficult to be executed. Therefore, the great advantage for setting the valid parameters for busbar systems components are analytical calculations supported by FEM (finite element method) modelling and analysis. Determining electrodynamic forces in busbar systems tends to be crucial with regard to subsidiary, dependent parameters. In this paper analytical calculations of asymmetric three-phase busbar

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22

Luo, Yu Feng, Yuan Shan Li, and Xu Chen. "Analysis of Multiple Degrees of Freedom Vibration Isolation System Using the State Space Method." Advanced Materials Research 338 (September 2011): 431–35. http://dx.doi.org/10.4028/www.scientific.net/amr.338.431.

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This papers deals with fast solving method of natural frequency and vibration isolation coefficient of multiple degrees of freedom vibration isolation system. In the foundation of a mathematical model of vibration motion differential equation, a new state space method is derived and presented. Through transforming the vibration isolation differential equations into the state space equations, it is convenient to facilitate the solution of vibration isolation coefficient of vibration isolation system of multiple degrees of freedom with damping, by using the state space method and the MATLAB/Simu

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23

Lou, Hao, Monicque M. Lorist, and Karin S. Pilz. "Variability in the temporal dynamics of object-based attentional selection." PLOS ONE 18, no. 11 (2023): e0294252. http://dx.doi.org/10.1371/journal.pone.0294252.

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Our attention can be directed to specific locations in our visual field (space-based attention), or to specific objects (object-based attention). However, object-based attention tends to be less pronounced than space-based attention and can vary greatly between individuals. Here we investigated whether the low prevalence of object-based effects is related to variability in the temporal dynamics of attentional selection. We manipulated cue-to-target intervals from 50 to 600 ms in a two-rectangle discrimination task. Space- and object-based effects were measured at the group level and for indivi

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Zhou, Yuqing, and Wei Xue. "A Multisensor Fusion Method for Tool Condition Monitoring in Milling." Sensors 18, no. 11 (2018): 3866. http://dx.doi.org/10.3390/s18113866.

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Tool fault diagnosis in numerical control (NC) machines plays a significant role in ensuring manufacturing quality. Tool condition monitoring (TCM) based on multisensors can provide more information related to tool condition, but it can also increase the risk that effective information is overwhelmed by redundant information. Thus, the method of obtaining the most effective feature information from multisensor signals is currently a hot topic. However, most of the current feature selection methods take into account the correlation between the feature parameters and the tool state and do not an

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25

Xue, Han, Weicheng Zhang, Chao Ni, and Xiping Lu. "Cross Product and Partitioned Filtering-Based Graham Convex Hull for Buoy Drifting Area Demarcating." Scientific Programming 2021 (November 29, 2021): 1–9. http://dx.doi.org/10.1155/2021/7713884.

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An improved Graham scan convex hull algorithm is designed using the convex hull region shrinkage algorithm and the sample selection decision algorithm. In the sorting of Graham scan convex hull algorithm, the cross-multiplication method is used instead of the operation of finding the polar angle, which avoids the high computational complexity of finding the inverse trigonometric function. When the polar angles are the same, that is, the two points are collinear, the points close to each other are deleted directly. Select the maximal horizontal ordinate point, minimal horizontal ordinate point,

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26

Alejos, Ana Vazquez, Manuel Garcia Sanchez, and Iñigo Cuiñas. "Performance Analysis of Polarization Diversity for Indoor Scenarios at 41.4 GHz and 61.5 GHz." International Journal of Antennas and Propagation 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/681820.

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We present the radio channel experiments conducted in indoor scenarios to test the performance of a dual orthogonal polarization scheme in the single-branch receiver end of a mobile system with a centre frequency of 41.4 GHz and 61.5 GHz. The diversity gain has been obtained according to three main combination methods for an outage probability of 1%: signal selection, equal gain combining, and maximal ratio combining. Diversity gain calculated ranges from 0.25 to 4.5 dB, depending on the combination technique used, the radiation pattern, the scenario, and the frequency band. The spatial variat

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27

Dumont-Lagacé, Maude, Albert Feghaly, Gabrielle Thauvette, et al. "Abstract 25 ECTmatch: Optimizing Small-Scale Cord Blood Banking Through HLA Analysis." Stem Cells Translational Medicine 11, Supplement_1 (2022): S30. http://dx.doi.org/10.1093/stcltm/szac057.025.

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Abstract Introduction Cord blood (CB) banks have had to rely on large inventories of CB units to try to serve the largest possible proportion of the population, all the while prioritizing collection of non-Caucasian ethnic groups. However, due to the high linkage disequilibrium of HLA genes and the high frequency of several HLA alleles in the population, CB banks contain hundreds of CB units that could be matched to the same patients, making the inventory somewhat redundant from a clinical standpoint. Objective ExCellThera developed ECTmatch, an algorithm dedicated to optimizing the selection

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Jürgens, Tim P., Jean Schoenen, Jørgen Rostgaard, et al. "Stimulation of the sphenopalatine ganglion in intractable cluster headache: Expert consensus on patient selection and standards of care." Cephalalgia 34, no. 13 (2014): 1100–1110. http://dx.doi.org/10.1177/0333102414530524.

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Context and overview Chronic cluster headache (CCH) is a debilitating headache disorder with a significant impairment of the patients' lives. Within the past decade, various invasive neuromodulatory approaches have been proposed for the treatment of CCH refractory to standard preventive drug, but only very few randomized controlled studies exist in the field of neuromodulation for the treatment of drug-refractory headaches. Based on the prominent role of the cranial parasympathetic system in acute cluster headache attacks, high-frequency sphenopalatine ganglion (SPG) stimulation has been shown

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Weber, Kaye, Sherry E. Courtney, Kee H. Pyon, Gordon Y. Chang, Paresh B. Pandit, and Robert H. Habib. "Detecting lung overdistention in newborns treated with high-frequency oscillatory ventilation." Journal of Applied Physiology 89, no. 1 (2000): 364–72. http://dx.doi.org/10.1152/jappl.2000.89.1.364.

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Positive airway pressure (Paw) during high-frequency oscillatory ventilation (HFOV) increases lung volume and can lead to lung overdistention with potentially serious adverse effects. To date, no method is available to monitor changes in lung volume (ΔVl) in HFOV-treated infants to avoid overdistention. In five newborn piglets (6–15 days old, 2.2–4.2 kg), we investigated the use of direct current-coupled respiratory inductive plethysmography (RIP) for this purpose by evaluating it against whole body plethysmography. Animals were instrumented, fitted with RIP bands, paralyzed, sedated, and plac

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Bhardwaj, Ananya, Ahmed Allam, Alper Erturk, and Karim G. Sabra. "Optimizing wireless acoustic energy harvesting and communication with passive markers underwater." Journal of the Acoustical Society of America 153, no. 3_supplement (2023): A345. http://dx.doi.org/10.1121/10.0019099.

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To enhance functionality of Acoustic Identification Tags (AID), passive markers designed as landmarks for Autonomous Underwater Vehicles (AUVs) [Satish et al., JASA 149 (2021)], the development of an accompanying battery free active communication platform was explored [Bhardwaj et al., JASA 152, 4 (2022)]. This platform utilizes custom piezoelectric transducers impedance matched for broadband operation, enabling concurrent acoustic energy harvesting and fast backscatter communication [Allam et al., SPIE 31, 9 (2022)]. The combination of these active and passive devices can improve AUV localiza

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Merwad, Ezzat A., Magdy M. AbdElftah, Said Abdelmonem, Elham M. Hasan, and Mohammad W. El-Anwar. "Subepithelial hydrodissection improves voice outcome of microflap surgery for vocal cord cyst." Egyptian Journal of Otolaryngology 35, no. 1 (2019): 51–55. http://dx.doi.org/10.4103/ejo.ejo_75_18.

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Abstract Objective The aim was to evaluate voice outcomes of microflap surgery with subepithelial infiltration for vocal fold cysts and to compare voice outcomes of microsurgery with and without subepithelial infiltration for vocal fold cysts. Patients and Methods This study was conducted on patients with vocal folds cysts. Patients who met selection criteria were divided into two groups: group A was operated by microflap surgery with subepithelial infiltration, and group B was operated by microflap surgery without subepithelial infiltration. Results Within the included 24 patients (12 in each

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Huang, Weijian, Qi Song, and Yuan Huang. "Two-Stage Short-Term Power Load Forecasting Based on SSA–VMD and Feature Selection." Applied Sciences 13, no. 11 (2023): 6845. http://dx.doi.org/10.3390/app13116845.

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Short-term power load forecasting is of great significance for the reliable and safe operation of power systems. In order to improve the accuracy of short-term load forecasting, for the problems of random fluctuation in load and the complexity of load-influencing factors, this paper proposes a two-stage short-term load forecasting method, SSA–VMD-LSTM-MLR-FE (SVLM–FE) based on sparrow search algorithm (SSA), to optimize variational mode decomposition (VMD) and feature engineering (FE). Firstly, an evaluation criterion on the loss of VMD decomposition is proposed, and SSA is used to find the op

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Ismailova, Aigul, Sailaubai Onayev, and Aizhan Ismailova. "CRITERIA OF OCCUPATIONAL FITNESS FOR WORKERS OF COAL PRODUCTION EXTREME PROFESSIONS." CBU International Conference Proceedings 1 (June 30, 2013): 323–30. http://dx.doi.org/10.12955/cbup.v1.52.

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In recent years issues of personal suitability for specific workplace (or career suitability) using complex methodological approaches were widely discussed in various fields of economy. This included studies of individual properties of neural system, personality, mental processes, cortico-subcortical relationships, autonomic responses, which characterize the degree of stress imposed upon a human's body. Specific working conditions in coal mines, characterized by a complex of unfavorable factors, place increased demands on psychofunctional conditions of miners’ bodies. Certain general propertie

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Uyar, Osman Murat, Francoise Sadler, Eva-Maria Konrad, and Faik Gelisken. "Impact of OCT scan-patterns in identifying morphological features of lamellar macular holes and macular pseudoholes." International Journal of Ophthalmology 15, no. 7 (2022): 1089–94. http://dx.doi.org/10.18240/ijo.2022.07.08.

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AIM: To evaluate the impact of the optical coherence tomography (OCT) scan patterns on the detection of the features associated with lamellar macular hole (LMH) and macular pseudohole (MPH). METHODS: This is a retrospective analysis of 100 consecutive eyes with LMH (n=41) and MPH (n=59) having at least three of the following OCT features, which include mandatory criteria for the diagnosis of LMH and MPH: Epiretinal membrane, epiretinal proliferation, verticalization, intraretinal cystoid spaces, foveoschisis, irregular foveal contour, foveal cavity with undermined edges, and ellipsoid line dis

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Chen, Yan, and Chunchun Hu. "Hourly PM2.5 Concentration Prediction Based on Empirical Mode Decomposition and Geographically Weighted Neural Network." ISPRS International Journal of Geo-Information 13, no. 3 (2024): 79. http://dx.doi.org/10.3390/ijgi13030079.

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Accurate prediction of fine particulate matter (PM2.5) concentration is crucial for improving environmental conditions and effectively controlling air pollution. However, some existing studies could ignore the nonlinearity and spatial correlation of time series data observed from stations, and it is difficult to avoid the redundancy between features during feature selection. To further improve the accuracy, this study proposes a hybrid model based on empirical mode decomposition (EMD), minimal-redundancy-maximal-relevance (mRMR), and geographically weighted neural network (GWNN) for hourly PM2

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Chen, Yongfa, Yingjie Zhu, Jie Wang, and Meng Li. "A Hybrid Model for Carbon Price Forecasting Based on Secondary Decomposition and Weight Optimization." Mathematics 13, no. 14 (2025): 2323. https://doi.org/10.3390/math13142323.

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Accurate carbon price forecasting is essential for market stability, risk management, and policy-making. To address the nonlinear, non-stationary, and multiscale nature of carbon prices, this paper proposes a forecasting framework integrating secondary decomposition, two-stage feature selection, and dynamic ensemble learning. Firstly, the original price series is decomposed into intrinsic mode functions (IMFs), using complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN). The IMFs are then grouped into low- and high-frequency components based on multiscale entropy (MSE) a

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Tanwar, Anju, Ashok Aggarwal, Ishan Saini, Tarsem Kumar, Mukesh Kumar, and Sergio T. Pichardo. "Diversity and distribution of arbuscular mycorrhizal fungi associated with vegetable crops in Haryana, India." EURASIAN JOURNAL OF SOIL SCIENCE (EJSS) 14, no. 1 (2024): 46–57. https://doi.org/10.18393/ejss.1574580.

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The optimal growth and development of many vegetable crops hinge significantly upon their reliance on Arbuscular Mycorrhizal Fungi (AMF). Understanding the AMF status of vegetable crops can assist researchers in selecting suitable strains for future experiments. Therefore, a field work was carried out to determine the species diversity and composition of AMF with fifty vegetable crops from seventeen different districts of Haryana. AMF spores were isolated and identified to evaluate AMF density, diversity, and host preference in terms of AMF species richness, abundance and frequency of occurren

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Garcia-Effron, Guillermo. "Rezafungin—Mechanisms of Action, Susceptibility and Resistance: Similarities and Differences with the Other Echinocandins." Journal of Fungi 6, no. 4 (2020): 262. http://dx.doi.org/10.3390/jof6040262.

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Rezafungin (formerly CD101) is a new β-glucan synthase inhibitor that is chemically related with anidulafungin. It is considered the first molecule of the new generation of long-acting echinocandins. It has several advantages over the already approved by the Food and Drug Administration (FDA) echinocandins as it has better tissue penetration, better pharmacokinetic/phamacodynamic (PK/PD) pharmacometrics, and a good safety profile. It is much more stable in solution than the older echinocandins, making it more flexible in terms of dosing, storage, and manufacturing. These properties would allow

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Pariente, Nonia, Antero Airaksinen, and Esteban Domingo. "Mutagenesis versus Inhibition in the Efficiency of Extinction of Foot-and-Mouth Disease Virus." Journal of Virology 77, no. 12 (2003): 7131–38. http://dx.doi.org/10.1128/jvi.77.12.7131-7138.2003.

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ABSTRACT RNA viruses replicate near the error threshold for maintenance of genetic information, and an increase in mutation frequency during replication may drive RNA viruses to extinction in a process termed lethal mutagenesis. This report addresses the efficiency of extinction (versus escape from extinction) of foot-and-mouth disease virus (FMDV) by combinations of the mutagenic base analog 5-fluorouracil (FU) and the antiviral inhibitors guanidine hydrochloride (G) and heparin (H). Selection of G- or H-resistant, extinction-escape mutants occurred with low-fitness virus only in the absence

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Di Pede, Francesco, Francesco Pistelli, Giovanni Viegi, et al. "Inclusion of Peak Expiratory Flow for Selection of the 'Best' Forced Vital Capacity Manoeuvre." Canadian Respiratory Journal 3, no. 5 (1996): 301–8. http://dx.doi.org/10.1155/1996/365275.

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OBJECTIVE:To assess four different criteria for selecting the 'best' forced vital capacity (FVC) manoeuvre to be used for clinical diagnostic purposes.DESIGN:Criterion standard.SETTING:General population survey performed in 1980-82.PATIENTS:One thousand, two hundred and eighty-three subjects (age range eight to 64 years) were first stratified into five mutually exclusive groups according to the following criteria: simultaneous largest FVC, forced expiratory volume in 1 s (FEV1) and peak expiratory flow (PEF) (group 1; n=481); isolated largest FVC (group 2; n=223); isolated largest FEV1(group 3

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Rakhmanin, U. A., S. E. Shibanov, and Sergey V. Kozulya. "Choice of sanitary-indicative microorganisms for the assessment of the safety of split-systems." Hygiene and sanitation 95, no. 3 (2019): 296–301. http://dx.doi.org/10.18821/0016-9900-2016-95-3-296-301.

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Purpose of work is a compilation of data about the microflora which colonizes a split-system, with the aim of selection of sanitary-indicative microorganisms, whose presence in the sample would indicate to the need for cleaning and disinfection of split-systems. Materials and methods. In the article there were used data of five years author’s scientific inquiry, related to the prevention of respiratory diseases, associated with the usage of a local air conditioning systems. We also use the data from the literature. Results. For selection of “indicative” microorganisms, we proposed the usage of

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Strong, Beverly SI, Amanda E. Lee, Tess J. Newkold, Lucas E. Turner, and Aimen F. Shaaban. "Prenatal Allospecific Tolerance Is Characterized By Early Treg Expansion and a Surprisingly Slow Pace for Teff Clonal Deletion." Blood 126, no. 23 (2015): 3070. http://dx.doi.org/10.1182/blood.v126.23.3070.3070.

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Abstract Prenatal transplantation capitalizes on the unique fetal environment, allowing for life-long engraftment of allogeneic stem cells without the need for harsh conditioning regimens. A prerequisite for stable engraftment of allogeneic cells likely requires the negative selection of donor-specific host effector T cells (Teff) and the support of donor-specific regulatory T cells (Tregs). However, little is known about the interplay between these cell types during development. The purpose of this study was to characterize the dynamic relationship between donor-specific Teff and Tregs as the

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Zhang, Tianhe C., John J. Janik, and Warren M. Grill. "Modeling effects of spinal cord stimulation on wide-dynamic range dorsal horn neurons: influence of stimulation frequency and GABAergic inhibition." Journal of Neurophysiology 112, no. 3 (2014): 552–67. http://dx.doi.org/10.1152/jn.00254.2014.

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Spinal cord stimulation (SCS) is a clinical therapy for chronic, neuropathic pain, but an incomplete understanding of the mechanisms underlying SCS contributes to the lack of improvement in SCS efficacy over time. To study the mechanisms underlying SCS, we constructed a biophysically based network model of the dorsal horn circuit consisting of interconnected dorsal horn interneurons and a wide-dynamic range (WDR) projection neuron and representations of both local and surround receptive field inhibition. We validated the network model by reproducing cellular and network responses relevant to p

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Muccino, David R., Alyn H. Morice, Surinder S. Birring, et al. "Design and rationale of two phase 3 randomised controlled trials (COUGH-1 and COUGH-2) of gefapixant, a P2X3 receptor antagonist, in refractory or unexplained chronic cough." ERJ Open Research 6, no. 4 (2020): 00284–2020. http://dx.doi.org/10.1183/23120541.00284-2020.

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BackgroundWe present study designs, dose selection and preliminary patient characteristics from two phase 3 clinical trials of gefapixant, a P2X3 receptor antagonist, in refractory chronic cough (RCC) or unexplained chronic cough (UCC).MethodsCOUGH-1 (NCT03449134) and COUGH-2 (NCT03449147) are randomised, placebo-controlled, double-blind, parallel-group trials in subjects with RCC or UCC (age ≥18 years; cough duration ≥1 year; Cough Severity Visual Analogue Scale score ≥40 mm). The primary efficacy study periods are 12 weeks (40-week extension; COUGH-1) and 24 weeks (28-week extension; COUGH-2

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Hassan, Mazlina Mansor, Kasumawati Lias, Norlida Buniyamin, Mohamad Zulkarnaen Ahmad Narihan, Bibi Sarpinah Sheikh Naimullah, and Dzufi Iszura Ispawi. "SAR Analysis Using Various Substrates of Microstrip Antenna for Breast Cancer Hyperthermia Treatment." Journal of Physics: Conference Series 2622, no. 1 (2023): 012006. http://dx.doi.org/10.1088/1742-6596/2622/1/012006.

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Abstract Hyperthermia is an alternative technique used to treat breast cancer using high heat, around 41°C to 45°C, to denature cancer tissue into necrotic tissue. It can work independently or in adjuvant with other conventional methods. The design of an antenna with a suitable substrate is essential for the applicator to transmit maximal heat to the intended area and distribute the heat uniformly on the treated tissues. Therefore, the inset feed microstrip antenna is design with five different substrates, simulated, analyzed, and their performance is compared to get the best substrate. The su

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Jargin, Sergei V. "Exaggeration of consequences of low-dose radiation exposures with special reference to cataracts." Imaging and Radiation Research 6, no. 2 (2023): 3387. http://dx.doi.org/10.24294/irr.v6i2.3387.

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Publications overestimating the medical and ecological sequels of a slight anthropogenic increase in the radiation background have been reviewed recently with examples of different organs and pathological conditions. The overestimation contributed to the strangulation of atomic energy. The use of nuclear energy for electricity production is on the agenda today due to the increasing energy needs of humankind. Apparently, certain scientific writers acted in the interests of fossil fuel producers. Health risks and environmental damage are maximal for coal and oil, lower for natural gas, and much

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Jargin, Sergei V. "Exaggeration of consequences of low-dose radiation exposures with special reference to cataracts." Imaging and Radiation Research 6, no. 1 (2024): 3387. http://dx.doi.org/10.24294/irr.v6i1.3387.

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Publications overestimating the medical and ecological sequels of a slight anthropogenic increase in the radiation background have been reviewed recently with examples of different organs and pathological conditions. The overestimation contributed to the strangulation of atomic energy. The use of nuclear energy for electricity production is on the agenda today due to the increasing energy needs of humankind. Apparently, certain scientific writers acted in the interests of fossil fuel producers. Health risks and environmental damage are maximal for coal and oil, lower for natural gas, and much

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Urian, Flavius-Iuliu, Corneliu Toader, Razvan-Adrian Covache Busuioc, et al. "Introducing the Index of Response to Stimulation (IRES): A Novel Metric for Assessing Vagus Nerve Stimulation Outcomes in Drug-Resistant Epilepsy." Medicina 61, no. 1 (2025): 75. https://doi.org/10.3390/medicina61010075.

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Background and Objectives: The Index of Response to Stimulation (IRES) is a new index that we introduce in this study to grade the effectiveness of vagus nerve stimulation in the treatment of drug-resistant epilepsy. We assessed 76 patients at 6, 12, and 18 months after VNS evaluating improvement with the IRES in four key dimensions: seizure duration decrease, seizure intensity decrease, improvement in quality of life, and seizure frequency decrease. This scale goes from 0, meaning no improvement, to 8, meaning maximal improvement, making the scale a really good measure of clinical utility. Ma

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Martens, Holger. "Transition Period of the Dairy Cow Revisited: I. Homeorhesis and Its Changes by Selection and Management." Journal of Agricultural Science 12, no. 3 (2020): 1. http://dx.doi.org/10.5539/jas.v12n3p1.

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The transition period of the dairy cow involves the end of pregnancy, parturition, and the onset of lactation. Multifaceted and rapid changes occur during this time, and in particular, the increase of milk secretion requires the large-scale reorientation of metabolism. The underlying mechanisms of this metabolic regulation are collectively named homeorhesis, a process that governs milk production during this phase and that exhibits (A) a chronic nature, (B) the simultaneous inclusion of multiple tissues, and (C) altered responses to homeostatic signals, but (D) no direct feedback mechanisms fo

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Bogemova, Oksana, and Elena Petrova. "Realization of the apology speech act: selection of speech tactics and the perlocutionary effect (based on the material of the Russian, English and French languages)." Litera, no. 5 (May 2021): 181–97. http://dx.doi.org/10.25136/2409-8698.2021.5.33004.

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This article examines the realization of the apology speech act in the three linguistic cultures: Russian, English, and French. The goal of this work is to determine the similarities and differences in functionality of the verbal act of apology in the context of the indicated cultures. The subject of this research is the expression with illocutionary meaning of apology. The authors review the composition of speech repertoire, means of realization of such speech act (conventional language, conventional speech, and nonconventional means), selection of speech tactics in expressing apology in form

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