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Piantadosi Steven T ST Brain and Cognitive Sciences, University of Rochester, Rochester, NY, USA, - - 2014
The frequency distribution of words has been a key object of study in statistical linguistics for the past 70 years. This distribution approximately follows a simple mathematical form known as Zipf's law. This article first shows that human language has a highly complex, reliable structure in the frequency distribution over ...
Wen Dong D School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, China; The Key Laboratory for Computer Virtual Technology and System Integration of Hebei Province, Yanshan University, Qinhuangdao 066004, - - 2014
Recently, the synchronization between neural signals has been widely used as a key indicator of brain function. To understand comprehensively the effect of synchronization on the brain function, accurate computation of the synchronization strength among multivariate neural series from the whole brain is necessary. In this study, we proposed a ...
Fernando Vera José J University of Granada, - - 2014
In this paper we propose a latent class distance association model for clustering in the predictor space of large contingency tables with a categorical response variable. The rows of such a table are characterized as profiles of a set of explanatory variables, while the columns represent a single outcome variable. ...
Andrade P P PP Universidade Federal de Pernambuco, Recife, PE, Brazil, - - 2014
The Brazilian National Biosafety Committee approved in 2011 a new post release monitoring system for environmental releases of genetically modified organisms. It has a number of novel features in comparison with other established or proposed systems. The new system also allows the proponent to ask for monitoring exemption. General surveillance ...
West Simon S Institute of Integrative Biology, University of Liverpool, Crown Street, L69 7ZB , Liverpool, UK, - - 2014
The relationship between components of biochemical network and the resulting dynamics of the overall system is a key focus of computational biology. However, as these networks and resulting mathematical models are inherently complex and non-linear, the understanding of this relationship becomes challenging. Among many approaches, model reduction methods provide an ...
Geiser Christian C Department of Psychology, Utah State University, 2810 Old Main Hill, Logan, UT, 84322-2810, USA, - - 2014
Researchers analyzing longitudinal data often want to find out whether the process they study is characterized by (1) short-term state variability, (2) long-term trait change, or (3) a combination of state variability and trait change. Classical latent state-trait (LST) models are designed to measure reversible state variability around a fixed ...
Qi Meiwei M Department of Building Science, School of Architecture, Tsinghua University, - - 2014
Carbon dioxide (CO2 ) metabolically produced by humans has been widely used as a tracer gas for determining ventilation rates in occupied rooms. Among other necessities, the method requires good estimates of human CO2 generation rates. An empirically derived equation is widely used to calculate the CO2 generation rate. However, ...
Smith David V DV Center for Cognitive Neuroscience, Duke University, Durham, NC 27708, USA; Department of Psychology and Neuroscience, Duke University, Durham, NC 27708, - - 2014
A central challenge for neuroscience lies in relating inter-individual variability to the functional properties of specific brain regions. Yet, considerable variability exists in the connectivity patterns between different brain areas, potentially producing reliable group differences. Using sex differences as a motivating example, we examined two separate resting-state datasets comprising a ...
El-Bardini Mohammad M Department of Industrial Electronics and Control Engineering, Faculty of Electronic Engineering, Menofia University, Menof 32852, Egypt. Electronic address: - - 2014
In this paper, the interval type-2 fuzzy proportional-integral-derivative controller (IT2F-PID) is proposed for controlling an inverted pendulum on a cart system with an uncertain model. The proposed controller is designed using a new method of type-reduction that we have proposed, which is called the simplified type-reduction method. The proposed IT2F-PID ...
Dos Reis Mario M 1. Department of Genetics, Evolution and Environment, University College London, DarwinBuilding, Gower Street, London WC1E 6BT, - - 2014
Bayesian methods provide a powerful way to estimate species divergence times by combining information from molecular sequences with information from the fossil record. With the explosive increase of genomic data, divergence time estimation increasingly uses data of multiple loci (genes or site partitions). Widely used computer programs to estimate divergence ...
Snell M A MA Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, UK. - - 2014
Headwater streams are an important feature of the landscape, with their diversity in structure and associated ecological function providing a potential natural buffer against downstream nutrient export. Phytobenthic communities, dominated in many headwaters by diatoms, must respond to physical and chemical parameters that can vary in magnitude within hours, whereas ...
Schmidt Jason M JM Department of Zoology, Miami University, Oxford, OH, 45056, USA, - - 2014
Interactions between predators foraging in the same patch may strongly influence patch use and functional response. In particular, there is continued interest in how the magnitude of mutual interference shapes predator-prey interactions. Studies commonly focus on either patch use or the functional response without attempting to link these important components ...
Mao Zhiyi Z Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), State Key Laboratory of Medicinal Chemical Biology, Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin 300071, PR - - 2014
Polyphenols in plant samples have been extensively studied because phenolic compounds are ubiquitous in plants and can be used as antioxidants in promoting human health. A method for rapid determination of three phenolic compounds (chlorogenic acid, scopoletin and rutin) in plant samples using near-infrared diffuse reflectance spectroscopy (NIRDRS) is studied ...
Mariani Nathália Cristina Torres NC Universidade de São Paulo (USP), Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Av. do Café, s/n, Campus Universitário da USP, Ribeirão Preto, CEP 14040-903 São Paulo, - - 2014
The aim of this study was to evaluate the potential of near-infrared reflectance spectroscopy (NIR) as a rapid and non-destructive method to determine soluble solid content (SSC) in intact jaboticaba [Myrciaria jaboticaba (Vell.) O. Berg] fruit. Multivariate calibration techniques were compared with pre-processed data and variable selection algorithms, such as ...
Huijg Johanna M - - 2014
To be able to design effective strategies to improve healthcare professionals' implementation behaviors, a valid and reliable questionnaire is needed to assess potential implementation determinants. The present study describes the development of the Determinants of Implementation Behavior Questionnaire (DIBQ) and investigates the reliability and validity of this Theoretical Domains Framework ...
Bonnet Julien J Sorbonne Université, UPMC Univ Paris 06, UMR 8232, IPCM, Chimie des Polymères, F-75005 Paris, France. - - 2014
Some organic compounds gelate liquids by forming a network of anisotropic fibres. Hansen solubility parameters can be used to predict the range of liquids that are likely to be gelled by any given gelator. We critically review the various approaches recently proposed in the literature. In particular, we discuss the ...
Rafferty Anna N AN Computer Science Division, University of California, - - 2014
Analyzing the rate at which languages change can clarify whether similarities across languages are solely the result of cognitive biases or might be partially due to descent from a common ancestor. To demonstrate this approach, we use a simple model of language evolution to mathematically determine how long it should ...
Cheadle Samuel S Department of Experimental Psychology, University of Oxford, Oxford OX1 3UD, UK. Electronic address: - - 2014
Neural systems adapt to background levels of stimulation. Adaptive gain control has been extensively studied in sensory systems but overlooked in decision-theoretic models. Here, we describe evidence for adaptive gain control during the serial integration of decision-relevant information. Human observers judged the average information provided by a rapid stream of ...
El-Nagar Ahmad M AM Department of Industrial Electronics and Control Engineering, Faculty of Electronic Engineering, Menofia University, Menouf 32852, Egypt. Electronic address: - - 2014
This manuscript describes the use of a hardware-in-the-loop simulation to simulate the control of a multivariable anesthesia system based on an interval type-2 fuzzy neural network (IT2FNN) controller. The IT2FNN controller consists of an interval type-2 fuzzy linguistic process as the antecedent part and an interval neural network as the ...
Cole Bryan - - 2014
We have developed and evaluated several dynamical machine-learning algorithms that were designed to track the presence and severity of tremor and dyskinesia with 1-second resolution by analyzing signals collected from Parkinson's disease (PD) patients wearing small numbers of hybrid sensors with both 3-D accelerometeric (ACC) and surface-electromyographic (EMG) modalities. We ...
Welch Kelton D KD Department of Entomology, University of Kentucky, Lexington, KY, - - 2014
A major goal of gut-content analysis is to quantify predation rates by predators in the field, which could provide insights into the mechanisms behind ecosystem structure and function, as well as quantification of ecosystem services provided. However, percent-positive results from molecular assays are strongly influenced by factors other than predation ...
Hewett Paul P a Exposure Assessment Solutions, Inc. ; Morgantown , - - 2014
ABSTRACT For more than twenty years CSX Transportation (CSXT) has collected exposure measurements from locomotive engineers and conductors, who are potentially exposed to diesel emissions. The database included measurements for elemental and total carbon, polycyclic aromatic hydrocarbons, aromatics, aldehydes, carbon monoxide, and nitrogen dioxide. This database was statistically analyzed and ...
van de Meent Jan-Willem JW Department of Statistics, Columbia University, New York, New - - 2014
Many single-molecule experiments aim to characterize biomolecular processes in terms of kinetic models that specify the rates of transition between conformational states of the biomolecule. Estimation of these rates often requires analysis of a population of molecules, in which the conformational trajectory of each molecule is represented by a noisy, ...
Guo Zhenyuan Z College of Mathematics and Econometrics, Hunan University, Changsha 410082, China; Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong. Electronic address: - - 2014
This paper presents a systematic method for analyzing the robust stability of a class of interval neural networks with uncertain parameters and time delays. The neural networks are affected by uncertain parameters whose values are time-invariant and unknown, but bounded in given compact sets. Several new sufficient conditions for the ...
Neutel Anje-Margriet AM British Antarctic Survey, High Cross, Madingley Rd, Cambridge, CB3 0ET, - - 2014
The strength of interactions is crucial to the stability of ecological networks. However, the patterns of interaction strengths in mathematical models of ecosystems have not yet been based upon independent observations of balanced material fluxes. Here we analyse two Antarctic ecosystems for which the interaction strengths are obtained: (1) directly, ...
Zhang Linlin L Department of Statistics, Rice University, Houston, USA. Electronic address: - - 2014
In this paper we present a novel wavelet-based Bayesian nonparametric regression model for the analysis of functional magnetic resonance imaging (fMRI) data. Our goal is to provide a joint analytical framework that allows to detect regions of the brain which exhibit neuronal activity in response to a stimulus and, simultaneously, ...
Ko B R BR Korea University, Seoul - - 2014
We observe D0-D¯0 mixing in the decay D0→K+π- using a data sample of integrated luminosity 976  fb-1 collected with the Belle detector at the KEKB e+e- asymmetric-energy collider. We measure the mixing parameters x'2=(0.09±0.22)×10-3 and y'=(4.6±3.4)×10-3 and the ratio of doubly Cabibbo-suppressed to Cabibbo-favored decay rates RD=(3.53±0.13)×10-3, where the uncertainties are ...
Bush Keith K Department of Computer Science, University of Arkansas at Little Rock (UALR), Little Rock, AR 72204, USA. Electronic address: - - 2014
Inferences made from analysis of BOLD data regarding neural processes are potentially confounded by multiple competing sources: cardiac and respiratory signals, thermal effects, scanner drift, and motion-induced signal intensity changes. To address this problem, we propose deconvolution filtering, a process of systematically deconvolving and reconvolving the BOLD signal via the ...
Jacobsen Jon J Department of Mathematics, Harvey Mudd College, Claremont, CA, 91711, USA, - - 2014
To fully understand population persistence in river ecosystems, it is necessary to consider the effect of the water flow, which varies tremendously with seasonal fluctuations of water runoff and snow melt. In this paper, we study integrodifference models for growth and dispersal in the presence of advective flow with both ...
Inoue Kentaro K Department of Bioscience and Bioinformatics, Kyushu Institute of Technology, Iizuka, Fukuoka, 820-8502, - - 2014
Mathematical modeling has become a standard technique to understand the dynamics of complex biochemical systems. To promote the modeling, we had developed the CADLIVE dynamic simulator that automatically converted a biochemical map into its associated mathematical model, simulated its dynamic behaviors and analyzed its robustness. To enhance the feasibility by ...
Jenkins Todd M TM Cincinnati Children׳s Hospital Medical Center, 3333 Burnet Avenue, MLC 7000, Cincinnati, OH 45229-3039, USA. Electronic address: - - 2014
Utilizing electronic data capture (EDC) systems in data collection and management allows automated validation programs to preemptively identify and correct data errors. For our multi-center, prospective study we chose to use TeleForm, a paper-based data capture software that uses recognition technology to create case report forms (CRFs) with similar functionality ...
Svensson Elin M EM Department of Pharmaceutical Biosciences, Uppsala University, P.O. Box 591, 751 24, Uppsala, Sweden, - - 2014
The objective of this work was to facilitate the development of nonlinear mixed effects models by establishing a diagnostic method for evaluation of stochastic model components. The random effects investigated were between subject, between occasion and residual variability. The method was based on a first-order conditional estimates linear approximation and ...
Eriksson Anders A Evolutionary Ecology Group, Department of Zoology, University of Cambridge, Downing Street, Cambridge, CB2 3EJ, - - 2014
Distinguishing between hybridisation and population structure in the ancestral species is a key challenge in our understanding of how permeable species boundaries are to gene flow. The doubly-conditioned frequency spectrum (dcfs) has been argued to be a powerful metric to discriminate between these two explanations, and it was used to ...
Reverter Ferran - - 2014
Nowadays, combining the different sources of information to improve the biological knowledge available is a challenge in bioinformatics. One of the most powerful methods for integrating heterogeneous data types are kernel-based methods. Kernel-based data integration approaches consist of two basic steps: firstly the right kernel is chosen for each data ...
Amaku Marcos M School of Veterinary Medicine, University of São Paulo, Av. Prof. Orlando Marques de Paiva, 87, Cidade Universitária, São Paulo, SP, 05508-270, - - 2014
Dengue is considered one of the most important vector-borne infection, affecting almost half of the world population with 50 to 100 million cases every year. In this paper, we present one of the simplest models that can encapsulate all the important variables related to vector control of dengue fever. The ...
Wiedermann Wolfgang W Department of Psychology, University of Vienna, - - 2014
Previous studies have discussed asymmetric interpretations of the Pearson correlation coefficient and have shown that higher moments can be used to decide on the direction of dependence in the bivariate linear regression setting. The current study extends this approach by illustrating that the third moment of regression residuals may also ...
Baldacchino F F UMR 5175, Centre d'Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry (UM3), 34199 Montpellier Cedex 5, - - 2014
In France, during the summer, cattle in mountainous pastures can be highly exposed to tabanid bites. The persistent biting behaviour of tabanids not only causes disturbance, but is also responsible for transmitting diseases, such as bovine besnoitiosis. The purpose of this study was to better identify the level of tabanid ...
Lee Kwang Jin KJ Department of Medical System Engineering (DMSE), Gwangju Institute of Science and Technology (GIST), Gwangju, - - 2014
Neuronal and muscular electrical signals contain useful information about the neuromuscular system, with which researchers have been investigating the relationship of various neurological disorders and the neuromuscular system. However, neuromuscular signals can be critically contaminated by cardiac electrical activity (CEA) such as the electrocardiogram (ECG) which confounds data analysis. The ...
Renart Alfonso A Champalimaud Neuroscience Programme, Champalimaud Foundation, Avenida Brasilia, 1400-038 Lisbon, Portugal. Electronic address: - - 2014
Neural activity and behavior in laboratory experiments are surprisingly variable across trials. This variability and its potential causes have been the focus of a spirited debate. Here we review recent research that has shed light on the sources of neural variability and its impact on behavior. We explain how variability ...
Sannino Giovanna G Institute of High Performance Computing and Networking (ICAR), National Research Council of Italy (CNR), Via Pietro Castellino 111, Naples, Italy; University of Naples "Parthenope", Department of Technology, Naples, Italy. Electronic address: - - 2014
Real-time Obstructive Sleep Apnea (OSA) episode detection and monitoring are important for society in terms of an improvement in the health of the general population and of a reduction in mortality and healthcare costs. Currently, to diagnose OSA patients undergo PolySomnoGraphy (PSG), a complicated and invasive test to be performed ...
Oliveira J P JP Estação Litoral da Aguda, Rua Alfredo Dias, Praia da Aguda, 4410-475 Arcozelo/VNG, Portugal; CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal. Electronic address: - - 2014
Littoral areas are subject to severe and increasing pressures resulting from human activities occurring along or next to the coast. In this study, patterns of variability in the structure of rocky intertidal benthic assemblages and in the abundance of individual taxa were compared between locations close to the coastal cities ...
Goetz Stefan M SM Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA. Electronic address: - - 2014
Motor evoked potentials (MEPs) play a pivotal role in transcranial magnetic stimulation (TMS), e.g., for determining the motor threshold and probing cortical excitability. Sampled across the range of stimulation strengths, MEPs outline an input-output (IO) curve, which is often used to characterize the corticospinal tract. More detailed understanding of the ...
Van Stan John T JT 2nd Department of Geology and Geography, Georgia Southern University, Statesboro, GA, 30640, USA, - - 2014
Many tree species have been shown to funnel substantial rainfall to their stem base as stemflow flux, given a favorable stand structure and storm conditions. As stemflow is a spatially concentrated flux, prior studies have shown its impact on ecohydrological and biogeochemical processes can be significant. Less work has been ...
Chorley Adrian A UK Civil Aviation Authority, Aviation House, Gatwick Airport South, West Sussex, RH6 0YR, - - 2014
It is known that ultraviolet radiation (UVR) increases by 10-12% every 1,000 m altitude; UVR at the 10, 000 m of typical cruise altitude for commercial aircraft may be 2-3 times higher than at ground level. Information on the levels of solar UV exposures is essential for the assessment of ...
Jeffrey Kao Ming-Chih MC Stanford Hospital & Clinics, Department of Orthopaedics, Palo Alto, - - 2014
To develop and implement methodologies for characterizing accelerometry-derived patterns of physical activity (PA) in the United States in relation to demographics, anthropometrics, behaviors, and co-morbidities using the NHANES dataset. Retrospective analysis of nationally representative database SETTING: Computer-generated modeling in silico PARTICIPANTS: 6,329 adults in the U.S. from NHANES 2003-2004 database. ...
Ma Xiao-Kui XK Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, National Engineering Laboratory for Resource Developing of Endangered Chinese Crude Drugs in Northwest of China, College of Life Sciences, Shaanxi Normal University, Xi'an 710062, Shaanxi, China. Electronic address: - - 2014
The study was conducted to enhance exopolysaccharide (EPS) antioxidant formation (as measured by Trolox-Equivalent Antioxidant Capacity, TEAC) by Phellinus sp. P0988 through medium studies, while jointly increasing EPS yield. Out of seven medium components, four significant variables were identified based on linear models with statistical significance (p<0.05), namely rutin, FeSO4, ...
Shahamiri Seyed - - 2014
Automatic Speech Recognition (ASR) can be very helpful for speakers who suffer from dysarthria, a neurological disability that damages the control of motor speech articulators. Although a few attempts have been made to apply ASR technologies to sufferers of dysarthria, previous studies show that such ASR systems have not attained ...
Gingold Daniel B DB Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia, - - 2014
Warm sea surface temperatures (SST) are positively related to incidence of ciguatera fish poisoning (CFP). Increased severe storm frequency may create more habitat for ciguatoxic organisms. While climate change could expand the endemic range of CFP, the relationship between CFP incidence and specific environmental conditions is unknown. Estimate associations between ...
Minadakis George G Department of Electronic and Computer Engineering, Brunel University Uxbridge, Middlesex, UB8 3PH, - - 2014
Objective. Recent cross-disciplinary literature suggests a dynamical analogy between earthquakes and epileptic seizures. This study extends the focus of inquiry for the applicability of models for earthquake dynamics to examine both scalp-recorded and intracranial electroencephalogram recordings related to epileptic seizures. Approach. First, we provide an updated definition of the electric ...
Liang Suh-Yuen SY Core Facilities for Protein Structural Analysis at Institute of Biological Chemistry, Academia Sinica, Taipei, - - 2014
Despite many attempts for algorithm development in recent years, automated identification of intact glycopeptides from LC-MS(2) spectral data is still a challenge in both sensitivity and precision. We implemented a supervised machine learning algorithm, Random Forest, in an automated workflow to identify N-glycopeptides using spectral features derived from ion trap-based ...
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