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González-Álvarez Jaime J Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain, - - 2014
A chemometric study was carried out to characterize three ionic liquid types (ILs) with hexacationic imidazolium, polymeric imidazolium, and phosphonium cationic cores, using a range of contra-anions such as halogens, thiocyanate, boron anions, triflate, and bistriflimide. The solvation parameter model developed by Abraham et al., unsupervised techniques as cluster analysis ...
Bisiacchi Patrizia P Department of General Psychology, University of Padova, Padova, Italy, - - 2014
Recent evidence reveals that inter- and intra-individual variability significantly affects cognitive performance in a number of neuropsychological pathologies. We applied a flexible family of statistical models to elucidate the contribution of inter- and intra-individual variables on cognitive functioning in healthy volunteers and patients at risk for hepatic encephalopathy (HE). Sixty-five ...
Rabosky Daniel L DL Museum of Zoology, University of Michigan, Ann Arbor, Michigan 48109 - - 2014
The correlation between species diversification and morphological evolution has long been of interest in evolutionary biology. We investigated the relationship between these processes during the radiation of 250+ scincid lizards that constitute Australia's most species-rich clade of terrestrial vertebrates. We generated a time-calibrated phylogenetic tree for the group that was ...
Shalloo L L 1 Livestock Systems Department, Teagasc, Animal & Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, - - 2014
There are significant costs associated with reproductive inefficiency in pasture-based dairy herds. This study has quantified the economic effect of a number of key variables associated with reproductive inefficiency in a dairy herd and related them to 6-week calving rate for both cows and heifers. These variables include: increased culling ...
Cox Matthew G MG Department of Behavioral Science, University of Texas MD Anderson Cancer Center, Houston, TX, - - 2014
Causal inference continues to be a critical aspect of evaluation research. Recent research in causal inference for statistical mediation has focused on addressing the sequential ignorability assumption; specifically, that there is no confounding between the mediator and the outcome variable. This article compares and contrasts three different methods for assessing ...
Laszlo Sarah S Department of Psychology, State University of New York, Binghamton, 4400 Vestal Parkway East, Binghamton, NY 13902, United States. Electronic address: - - 2014
The Parallel Distributed Processing (PDP) framework is built on neural-style computation, and is thus well-suited for simulating the neural implementation of cognition. However, relatively little cognitive modeling work has concerned neural measures, instead focusing on behavior. Here, we extend a PDP model of reading-related components in the Event-Related Potential (ERP) ...
Khushaba Rami N RN School of Electrical, Mechanical and Mechatronics Systems, Faculty of Engineering and Information Technology, University of Technology, Sydney (UTS), Australia. Electronic address: - - 2014
Recent studies in Electromyogram (EMG) pattern recognition reveal a gap between research findings and a viable clinical implementation of myoelectric control strategies. One of the important factors contributing to the limited performance of such controllers in practice is the variation in the limb position associated with normal use as it ...
Rozeboom Esther E Minimal Invasive Surgery and Interventions, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands, - - 2014
Flexible endoscopes are increasingly used to perform advanced intraluminal and transluminal interventions. These complex interventions demand accurate and efficient control, however, current endoscopes lack intuitiveness and ergonomic control of the endoscope tip. Alternative handheld controllers can improve intuitiveness and ergonomics, though previous studies are inconclusive concerning their effect on the ...
Furlotte Nicholas A NA 1] Microsoft Research, Los Angeles, CA, USA [2] Computer Science Department, University of California, Los Angeles, CA, - - 2014
The use of mixed models to determine narrow-sense heritability and related quantities such as SNP heritability has received much recent attention. Less attention has been paid to the inherent variability in these estimates. One approach for quantifying variability in estimates of heritability is a frequentist approach, in which heritability is ...
Del Rio do Valle Rodrigo R Institute of Health Sciences, Paulista University, São Paulo, Brazil; Applied Research Division, São Paulo Zoological Park Foundation, São Paulo, Brazil; Wildlife Management Consultoria Veterinária, São Paulo, - - 2014
The common marmoset (Callithrix jacchus) is of interest for reproductive studies because of their high and variable fertility in captivity. However, to understand this variability, much basic information still needs to be gathered. This study is the first to characterize marmoset semen comparing a German and a Brazilian colony. All ...
Hwang Taehee T Institute for the Environment, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, - - 2014
Mountain watersheds are primary sources of freshwater, carbon sequestration, and other ecosystem services. There is significant interest in the effects of climate change and variability on these processes over short to long time scales. Much of the impact of hydroclimate variability in forest ecosystems is manifested in vegetation dynamics in ...
Vanderweele Tyler J TJ From the aDepartments of Epidemiology and Biostatistics, Harvard School of Public Health, Boston, MA; and bDepartment of Nutrition, Harvard School of Public Health, Boston, - - 2014
We give critical attention to the assumptions underlying Mendelian randomization analysis and their biological plausibility. Several scenarios violating the Mendelian randomization assumptions are described, including settings with inadequate phenotype definition, the setting of time-varying exposures, the presence of gene-environment interaction, the existence of measurement error, the possibility of reverse causation, ...
Brockmann Uwe H UH Hamburg University, Institute for Geology, Dept. Biogeochemistry and Marine Chemistry, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany. Electronic address: - - 2014
Confidence of monitoring data is dependent on their variability and representativeness of sampling in space and time. Whereas variability can be assessed as statistical confidence limits, representative sampling is related to equidistant sampling, considering gradients or changing rates at sampling gaps. By the proposed method both aspects are combined, resulting ...
Macnab Ying C YC 1Epidemiology and Biostatistics, School of Population and Public Health, University of British Columbia, Vancouver, - - 2014
We present Bayesian hierarchical spatial model development motivated from a recent analysis of noisy small area response rate data, named the Booster data. The Booster data are postcode-level aggregates from a recent mail-out recruitment for a physical exercise intervention in deprived urban neighbourhoods in Sheffield, UK. Bayesian hierarchical Bernoulli-binomial spatial ...
Kennedy Jonathan - - 2014
A recent Lancet article reported the first reliable estimates of suicide rates in India. National-level suicide rates are among the highest in the world, but suicide rates vary sharply between states and the causes of these differences are disputed. We test whether differences in the structure of agricultural production explain ...
Packard Gary C GC Department of Biology, Colorado State University, Fort Collins, - - 2014
The traditional allometric method, which is at the heart of research paradigms used by comparative biologists around the world, entails fitting a straight line to logarithmic transformations of the original bivariate data and then back-transforming the resulting equation to form a two-parameter power function in the arithmetic scale. The method ...
Scheff Jeremy D JD Department of Biomedical Engineering, Rutgers University, 599 Taylor Road, Piscataway, NJ 08854, - - 2014
Analysis of heart rate variability (HRV) is a promising diagnostic technique due to the noninvasive nature of the measurements involved and established correlations with disease severity, particularly in inflammation-linked disorders. However, the complexities underlying the interpretation of HRV complicate understanding the mechanisms that cause variability. Despite this, such interpretations are ...
Pieters Sigrid S Department of Analytical Chemistry and Pharmaceutical Technology, Center for Pharmaceutical Research, Vrije Universiteit Brussel - VUB, Laarbeeklaan 103, Brussels B-1090, - - 2014
The aim of this work is to build a multivariate calibration (MVC) model from Raman spectra for the prediction of the protein conformational state class (i.e. native-like or non-native) in different freeze-dried pharmaceutical formulations of a model protein lactate dehydrogenase (LDH). As this model would be intended to facilitate and ...
El-Sabaawi Rana W RW Department of Ecology and Evolutionary Biology, Cornell University Ithaca, NewYork, - - 2014
Interspecific differences in organismal stoichiometry (OS) have been documented in a wide range of animal taxa and are of significant interest for understanding evolutionary patterns in OS. In contrast, intraspecific variation in animal OS has generally been treated as analytical noise or random variation, even though available data suggest intraspecific ...
Nam Yun Sik YS Advanced Analysis Center, Korea Institute of Science and Technology, P.O. Box 131, Cheongryangri, Seoul, 136-791, - - 2014
Questioned documents examined in a forensic laboratory sometimes contain signatures written with ballpoint pen inks; these signatures were examined to assess the feasibility of micro-attenuated total reflectance (ATR) Fourier transform infrared (FTIR) spectroscopy as a forensic tool. Micro-ATR FTIR spectra for signatures written with 63 ballpoint pens available commercially in ...
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 ...
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