Results 51  100 of 2027  
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Mroczek Dariusz D 1Chair of Motor Activity, University School of Physical Education, Wroclaw, Poland 2Faculty of Physical Education and Physiotherapy, Opole University of Technology,   2014
The present study aims to assess motor activity of volleyball players using an original video recording method developed by the authors. 28 volleyball players taking part in four matches of the Polish Volleyball League were examined. The recorded data were analyzed in view of the mean total distance covered by ...


Demetrashvili Nino N 1Department of Epidemiology, University Medical Center Groningen, University of Groningen, RB Groningen, the   2014
Confidence intervals for intraclass correlation coefficients in agreement studies with continuous outcomes are modelspecific and no generic approach exists. This paper provides two generic approaches for intraclass correlation coefficients of the form $$\sum _{q=1}^{Q}{\sigma }_{q}^{2}/(\sum _{q=1}^{Q}{\sigma }_{q}^{2}+\sum _{p=Q+1}^{P}{\sigma }_{p}^{2})$$. The first approach uses Satterthwaite's approximation and an Fdistribution. The second ...


Kim JaeKwan JK Vorononi Diagram Research Center, Hanyang University,   2014
Molecular external structure is important for molecular function, with voids on the surface and interior being one of the most important features. Hence, recognition of molecular voids and accurate computation of their geometrical properties, such as volume, area and topology, are crucial, yet most popular algorithms are based on the ...


Wynveen A A School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455,   2014
Some statistical features of steady states of a Kauffmanlike model for prebiotic evolution are reported from computational studies. We postulate that the interesting "lifelike" states will be characterized by a nonequilibrium distribution of species and a time variable species selfcorrelation function. Selecting only such states from the population of final ...


Gowda Karna K Department of Engineering Sciences and Applied Mathematics, Northwestern University, Evanston, Illinois 60208,   2014
A feature common to many models of vegetation pattern formation in semiarid ecosystems is a sequence of qualitatively different patterned states, "gaps → labyrinth → spots," that occurs as a parameter representing precipitation decreases. We explore the robustness of this "standard" sequence in the generic setting of a bifurcation problem ...


Chaimovich Aviel A Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 931065080,   2014
The hydrophobic interaction manifests two separate regimes in terms of size: Small nonpolar bodies exhibit a weak oscillatory force (versus distance) while large nonpolar surfaces exhibit a strong monotonic one. This crossover in hydrophobic behavior is typically explained in terms of water's tetrahedral structure: Its tetrahedrality is enhanced near small ...


Meaney Christopher   2014
In biomedical research, response variables are often encountered which have bounded support on the open unit interval  (0,1). Traditionally, researchers have attempted to estimate covariate effects on these types of response data using linear regression. Alternative modelling strategies may include: beta regression, variabledispersion beta regression, and fractional logit regression ...


Choi Yongju   2014
The validity of a hydrophobic organic contaminant mass transfer model to predict the effectiveness of insitu AC treatment under stagnant sedimentAC contact is studied for different contaminants and sediments. The modeling results and data from a previous 24month column study experiment of uptake in polyethylene samplers are within a factor ...


Wang Xiaoyan   2014
Among the methods of parallel magnetic resonance imaging (PMRI), Generalized Autocalibrating Partially Parallel Acquisitions (GRAPPA) technique reconstructs the missing kspace data by a set of weights, which are derived from autocalibration signal (ACS) lines acquired in parallel to the reduced lines. In this paper, a novel hybrid method is proposed ...


Martin Andrew A NHS Greater Manchester Commissioning Support Unit, Salford, Manchester,   2014
Background: Generic losartan provides an opportunity to enhance angiotensin receptor blocker (ARB) prescribing efficiency, with all ARBs essentially being similar. Initially, there was limited activity in NHS Bury (UK). This changed in March 2011 with therapeutic switching and other measures encouraging the prescribing of losartan following generics to enhance its ...


Legendre Pierre P Département de Sciences Biologiques, Université de Montréal, , C.P. 6128, Succursale Centreville, Montréal, Québec, Canada , H3C 3J7, Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR CNRS 6539, Institut Universitaire Européen de la Mer, Université de Bretagne Occidentale, , rue Dumont d'Urville, Plouzané 29280,   2014
This review focuses on the analysis of temporal beta diversity, which is the variation in community composition along time in a study area. Temporal beta diversity is measured by the variance of the multivariate community composition time series and that variance can be partitioned using appropriate statistical methods. Some of ...


Otani Koichi   2014
It has been suggested that interpersonal sensitivity, a personality trait associated with depression and anxiety disorders, is linked with attachment insecurity. To confirm this link, we studied the correlations of interpersonal sensitivity with working models of the self and other. The subjects were 301 healthy Japanese. Interpersonal sensitivity and working ...


MonteroMarin Jesus J Faculty of Health Sciences and Sports, University of Zaragoza, Huesca, Spain ; Department of Psychiatry, University of Zaragoza, Zaragoza, Spain ; REDIAPP "Red de Investigación en Actividades Preventivas y Promoción de la Salud" (Research Network on Preventative Activities and Health Promotion), Zaragoza,   2014
Burnout occurs when professionals use ineffective coping strategies to try to protect themselves from workrelated stress. The dimensions of 'overload', 'lack of development' and 'neglect', belonging to the 'frenetic', 'underchallenged' and 'wornout' subtypes, respectively, comprise a brief typological definition of burnout. The aim of the present study was to estimate ...


Marcon Eric E AgroParisTech, UMR Écologie des Forêts de Guyane, Kourou Cedex,   2014
Traditional measures of diversity, namely the number of species as well as Simpson's and Shannon's indices, are particular cases of Tsallis entropy. Entropy decomposition, i.e. decomposing gamma entropy into alpha and beta components, has been previously derived in the literature. We propose a generalization of the additive decomposition of Shannon ...


Wang Ling L Research Center for Drug Discovery & Institute of Human Virology, School of Pharmaceutical Sciences, Sun Yatsen University, Guangzhou,   2014
Mammalian target of rapamycin (mTOR) is a central controller of cell growth, proliferation, metabolism, and angiogenesis. Thus, there is a great deal of interest in developing clinical drugs based on mTOR. In this paper, in silico models based on multiscaffolds were developed to predict mTOR inhibitors or noninhibitors. First 1,264 ...


Raineri Emanuele E Statistical Genomics, Centro Nacional de Análisis Genómico, Barcelona, Catalonia,   2014
We apply a known algorithm for computing exactly inequalities between Beta distributions to assess whether a given position in a genome is differentially methylated across samples. We discuss the advantages brought by the adoption of this solution with respect to two approximations (Fisher's test and Z score). The same formalism ...


Tseng KuoKun KK 0000000262587009 Harbin Institute of Technology, Shenzhen Graduate School, Shenzhen,   2014
In recent years, many approaches have been suggested for Internet and web streaming detection. In this paper, we propose an approach to signal waveform detection for Internet and web streaming, with novel statistical automatons. The system records network connections over a period of time to form a signal waveform and ...


Zheng Bojin B 1] College of Computer Science, SouthCentral University For Nationalities, Wuhan 430074, China [2] State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China [3] Computer School, Wuhan University, Wuhan 430072,   2014
Realworld networks such as the Internet and WWW have many common traits. Until now, hundreds of models were proposed to characterize these traits for understanding the networks. Because different models used very different mechanisms, it is widely believed that these traits origin from different causes. However, we find that a ...


Erben Ulrike U Department of Medicine I for Gastroenterology, Infectious Disease and Rheumatology, Campus Benjamin Franklin, CharitéUniversitätsmedizin Berlin Berlin, Germany ; Research Center ImmunoSciences, CharitéUniversitätsmedizin Berlin Berlin,   2014
Histomorphology remains a powerful routine evaluating intestinal inflammation in animal models. Emphasizing the focus of a given animal study, histopathology can overstate differences between established models. We aimed to systematize histopathological evaluation of intestinal inflammation in mouse models facilitating interstudy comparisons. Samples of all parts of the intestinal tract from ...


Erickson Wallace P WP Western EcoSystems Technology, Inc., Cheyenne, WY, United States of   2014
Small passerines, sometimes referred to as perching birds or songbirds, are the most abundant bird group in the United States (US) and Canada, and the most common among bird fatalities caused by collision with turbines at wind energy facilities. We used data compiled from 116 studies conducted in the US ...


Parag Toufiq   2014
Pixel and superpixel classifiers have become essential tools for EM segmentation algorithms. Training these classifiers remains a major bottleneck primarily due to the requirement of completely annotating the dataset which is tedious, errorprone and costly. In this paper, we propose an interactive learning scheme for the superpixel classifier for EM ...


Wang Yin Y College of Life Science and Biotechnology, Shanghai Jiaotong University, Shanghai,   2014
Gene regulatory networks (GRNs) coherently coordinate the expressions of genes and control the behaviors of cellular systems. The complexity in modeling a quantitative GRN usually results from inaccurate parameter estimation, which is mostly due to small sample sizes. For better modeling of GRNs, we have designed a smallsample iterative optimization ...


Kang Di D 1] College of Forestry, Northwest A&F University, Yangling 712100, Shaanxi, China [2] The Research Center of Recycle Agricultural Engineering and Technology of Shaanxi Province, Yangling 712100 Shaanxi,   2014
This study investigated a typical secondary Betula platyphylla forest in the Ziwuling Mountains, Loess Plateau, China. In the sample plot, the DBH (diameter at breast height) class structure of B. platyphylla was bimodal. Individuals with small and large DBH values were abundant. The DBH structures of Quercus wutaishanica and Pinus ...


Wang Xinhui   2014
Nonspecific feature selection is a dimension reduction procedure performed prior to cluster analysis of high dimensional molecular data. Not all measured features are expected to show biological variation, so only the most varying are selected for analysis. In DNA methylation studies, DNA methylation is measured as a proportion, bounded between ...


Yin ZiWei ZW Department of Biology, College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, P. R.   2014
A new genus and species of the subtribe Batrisina from western Sarawak, Bryantinus matangus gen. et sp. n., is described, illustrated, and compared with related taxa. In addition, examination of a small series of batrisine material from Thailand revealed a new country record for Cerochusa cilioceps Yin & Nomura, which ...


Kanoatov Mirzo   2013
We describe a mathematical approach that enables extraction of kinetic rate constants from thousands of studies conducted over the past two decades with affinity capillary electrophoresis (ACE). Previously, ACE has been used almost exclusively for obtaining equilibrium constants of intermolecular interactions. In this article, we prove that there exists an ...


Noel Yvonnick   2013
An unfolding model for continuous bounded responses is proposed, derived both from a hypothetical interpolation response mechanism and from the hypothesis of two opposite sources of item refusal being collapsed. These two sources of refusal are made explicit in a threecomponent Dirichlet response model and then collapsed to obtain a (twocomponent) beta response ...


Stanga D D National Institute of R&D for Physics and Nuclear Engineering "HoriaHulubei", IFINHH, P.O.Box MG6, BucharestMagurele R077125, Romania. Electronic address:   2013
A simple method has been developed for determining the activity of largearea beta reference sources in anodized aluminum foils. It is based on the modeling of the transmission of beta rays through thin foils in planar geometry using Monte Carlo simulation. The method was checked experimentally and measurement results show ...


Iknayan Kelly J   2013
Estimates of species richness and diversity are central to community and macroecology and are frequently used in conservation planning. Commonly used diversity metrics account for undetected species primarily by controlling for sampling effort. Yet the probability of detecting an individual can vary among species, observers, survey methods, and sites. We ...


Havelka Miroslav M Czech Metrology Institute, Inspectorate for Ionizing Radiation, Radiová 1, 102 00 Prague, Czech Republic. Electronic address:   2013
The activity of the radionuclide (64)Cu was determined by the efficiency extrapolation method applied to 4π(PC)γ coincidence counting. The standardisation was performed by software coincidence countinga digital method for primary activity measurement that simplifies the setting of optimal coincidence parameters. The γrayenergy window, characterised by identical gamma detection efficiency related ...


Lee ChangHyun   2013
The sylvian arachnoid cyst (AC) is a common benign disease; however, it sometimes leads to subdural or intracystic hemorrhage without major trauma. The reason of easy bleeding of the AC is not fully understood. The purpose of this study was to investigate the bleeding mechanism of the sylvian AC in ...


Hardy J C   2013
Because of angularmomentum conservation, superallowed β decay between 0(+) analog states involves only the vector part of the weak interaction, so its measured ft value can be used to determine the vector coupling constant, GV. If many such transitions are measured, then the constancy of GV can be established and ...


Battisti Sabrina   2013
In May 2005, betahexachlorocyclohexane (βHCH) was found in a sample of bovine bulk milk from a farm in the Sacco River valley (Latium region, central Italy). The primary source of contamination was suspected to be industrial discharge into the environment with the Sacco River as the main mean of dispersion. ...


Wentao Fan   2013
A large class of problems can be formulated in terms of the clustering process. Mixture models are an increasingly important tool in statistical pattern recognition and for analyzing and clustering complex data. Two challenging aspects that should be addressed when considering mixture models are how to choose between a set ...


Kalantari Mojgan M Department of Radiology, Mahdiyeh Hospital, Shahid Beheshti University of Medical Sciences, Tehran,   2013
Abdominal circumference (AC), biparietal diameters (BPD) and femoral length (FL) are now the main parameters used to obtain estimated fetal weight (EFW). Although the role of soft tissue parameters in determining fetal weight was proved but clinical attention to midthigh soft tissue thickness (STT) is limited. To find the impression ...


Zhou Mingyuan   2013
The seemingly disjoint problems of count and mixture modeling are united under the negative binomial (NB) process. A gamma process is employed to model the rate measure of a Poisson process, whose normalization provides a random probability measure for mixture modeling and whose marginalization leads to a NB process for ...


He Wenqi   2013
We comment on the recent Letter, by Liu et al. [Opt. Lett.38, 1651 (2013)] in which a method to improve the security strength of the asymmetric cryptosystem (ACS) by Qin and Peng [Opt. Lett.35, 118 (2010)] was proposed. However, in accordance with Liu's methodology, we could easily find other more efficient ...


Yu Xiaoyi   2013
Longterm storage of articular cartilage (AC) has excited great interest due to the practical surgical significance of this tissue. The liquidustracking (LT) method developed by Pegg et al. [Cryobiology, 52 (2006) 360368] for vitreous preservation of AC achieved reasonable survival of postwarming chondrocytes in situ, but the design of the ...


Sathyamoorthy Sandeep   2013
Accurate prediction of pharmaceutical concentrations in wastewater effluents requires that the specific biochemical processes responsible for pharmaceutical biodegradation be elucidated and integrated within any modeling framework. The fate of three selected beta blockers  atenolol, metoprolol, and sotalol  was examined during nitrification using batch experiments to develop and evaluate ...


Carvalho Susana   2013
The present study analyses the composition, structure and trophic function of epibenthic assemblages in two artificial reefs (ARs) 16 years after deployment and in nearby natural reefs (NRs), aiming at providing insights on the complementarity between both habitats. Current findings suggest that after 16 years the ARs (concrete blocks), located ...


A Comparison of Statistical Methods for Detecting ContextModulated Functional Connectivity in fMRI.
Cisler Josh M   2013
Many cognitive and clinical neuroscience research studies seek to determine how contextual factors modulate cognitive processes. In fMRI, hypotheses about how context modulates distributed patterns of information processing are often tested by comparing functional connectivity between neural regions A and B as a function of task condition X and Y, ...


Salari Nader   2013
The classification of Acute Coronary Syndrome (ACS), using artificial intelligence (AI), has recently drawn the attention of the medical researchers. Using this approach, patients with myocardial infarction can be differentiated from those with unstable angina. The present study aims to develop an integrated model, based on the feature selection and ...


Silva M M   2014
This paper addresses the local identifiability and sensitivity properties of two classes of Wiener models for the neuromuscular blockade and depth of hypnosis, when drug dose profiles like the ones commonly administered in the clinical practice are used as model inputs. The local parameter identifiability was assessed based on the ...


Hansson Mari   2013
Highthroughput screening (HTS) is widely used in the pharmaceutical industry to identify novel chemical starting points for drug discovery projects. The current study focuses on the relationship between molecular hit rate in recent inhouse HTS and four common molecular descriptors: lipophilicity (ClogP), size (heavy atom count, HEV), fraction of sp(3)hybridized ...


El Karoui Noureddine N Department of Statistics, University of California, Berkeley, CA 94720, USA.   2013
We study regression Mestimates in the setting where p, the number of covariates, and n, the number of observations, are both large, but p ≤ n. We find an exact stochastic representation for the distribution of β = argmin(β∈ℝ(p)) Σ(i=1)(n) ρ(Y(i)  X(i')β) at fixed p and n under various ...


Comas J   2013
Field trials may be required to assess risks of genetically modified crops (GMCs) for nontarget arthropods. One critical point of these trials is their capacity to detect differences between the density of one taxon in the GMC and that in the comparator. The detection capacity of a trial depends on ...


  2013
Success often comes through many small, incremental, wellexecuted improvements.


Kuss Oliver   2013
There are still challenges when metaanalyzing data from studies on diagnostic accuracy. This is mainly due to the bivariate nature of the response where information on sensitivity and specificity must be summarized while accounting for their correlation within a single trial. In this paper, we propose a new statistical model ...


Automatic Relevance Determination in Nonnegative Matrix Factorization with the $(\beta)$Divergence.
Tan Vincent Y F   2013
This paper addresses the estimation of the latent dimensionality in nonnegative matrix factorization (NMF) with the $(\beta)$divergence. The $(\beta)$divergence is a family of cost functions that includes the squared euclidean distance, KullbackLeibler (KL) and ItakuraSaito (IS) divergences as special cases. Learning the model order is important as it is necessary ...


Legendre Pierre   2013
Beta diversity can be measured in different ways. Among these, the total variance of the community data table Y can be used as an estimate of beta diversity. We show how the total variance of Y can be calculated either directly or through a dissimilarity matrix obtained using any dissimilarity ...


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