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Results 501 - 550 of 6163
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Xu Chengcheng C a Jiangsu Key Laboratory of Urban ITS, Southeast University Jiangsu Province Collaborative Innovation Center of Modern Urban Traffic Technologies Si Pai Lou #2 , Nanjing , China , 210096 Tel: +86-13801580045 Email: iamxcc1@gmail.com E-mail: wangwei@seu.edu.cn Email: - - 2014
ABSTRACT Objective: This study aimed to identify the traffic flow variables contributing to crash risks under different traffic states, and to develop a real-time crash risk model incorporating the varying crash mechanisms across different traffic states. Methods: The crash, traffic and geometric data were collected on the I-880N freeway in ...
Chen Liddy M LM a Global Research Operation, Biostatistics PAREXEL International 2520 Meridian Parkway, Durham , North Carolina 27713 , - - 2014
Abstract It has been widely recognized that interim analyses of accumulating data in a clinical trial can inflate type I error. Different methods, from group sequential boundaries to flexible alpha spending functions, have been developed to control the overall type I error at pre-specified level. These methods mainly apply to ...
Fu Bo B a Centre for Biostatistics, School of Medicine , The University of Manchester , Manchester , M13 9PL , - - 2014
Abstract In non-designed longitudinal observational studies, irregularly spaced measurements are commonly present over a period of follow-up time. We propose a smoothing dynamic model, based on the idea of varying coefficients, to analyze this highly unbalanced longitudinal data. The estimate of model parameters can be obtained by implementing a well-developed ...
Dupuy Céline C Unité Epidémiologie, Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (Anses), 31 avenue Tony Garnier, F-69364 Lyon, Cedex 07, France; Unité d'épidémiologie animale, UR346, INRA, F-63122 St Genès Champanelle, - - 2014
Bovine cysticercosis is a zoonotic parasitic disease due to Cysticercus bovis. This study aimed to identify factors that could have an impact on the prevalence of cysticercosis and to use them to build standardized indicators of prevalence. Multivariate logistic regression analyses were performed on data from 4,564,065 cattle (91.3% of ...
Briggs A D M AD Thames Valley Public Health England Centre, Chilton, - - 2014
SUMMARY Water supply-associated cryptosporidiosis outbreaks have decreased in England since the application of risk reduction measures to public water supplies. We hypothesized that smaller outbreaks were occurring which could be better detected by enhanced surveillance. Rolling analysis of detailed questionnaire data was applied prospectively in a population of 2·2 million ...
Kosciw Joseph G JG GLSEN, New York, NY, - - 2014
For lesbian, gay, bisexual, and transgender (LGBT) youth, coming out (i.e., disclosure of LGBT identity to others) can be a key developmental milestone, one that is associated with better psychological well-being. However, this greater visibility may come with increased risk of peer victimization. Being out, therefore, may reflect resilience and ...
Lucena Eudes Euler de Souza EE Department of Dentistry, Rio Grande do Norte State University, Caicó/RN, Brazil; Department of Dentistry, Federal University of Rio Grande do Norte, Natal/RN, - - 2014
Workers from various occupational groups stand out as being more susceptible to photodamage. Behaviors that can reduce the risk of onset of these disorders include the limitation or reduction of sun exposure, use of photoprotective clothing, and correct use of sunscreen. The present study aimed to verify the use of ...
Spinks Phillip Q PQ Department of Ecology and Evolutionary Biology, La Kretz Center for California Conservation Science, Institute of the Environment and Sustainability, University of California, Los Angeles, CA 90095, USA. Electronic address: - - 2014
A goal of modern taxonomy is to develop classifications that reflect current phylogenetic relationships and are as stable as possible given the inherent uncertainties in much of the tree of life. Here, we provide an in-depth phylogenetic analysis, based on 14 nuclear loci comprising 10,305 base pairs of aligned sequence ...
McGuire Jimmy A JA Museum of Vertebrate Zoology and Department of Integrative Biology, University of California, Berkeley, Berkeley, CA 94720, USA. Electronic address: - - 2014
The tempo of species diversification in large clades can reveal fundamental evolutionary mechanisms that operate on large temporal and spatial scales [1-4]. Hummingbirds have radiated into a diverse assemblage of specialized nectarivores comprising 338 species, but their evolutionary history has not, until now, been comprehensively explored. We studied hummingbird diversification ...
Dijkstra Hildebrand H *University of Groningen, University Medical Center Groningen Department of Radiology, Groningen, The - - 2014
The aim of this study was to compare the summing method (A) with the complement method (B) for calculating the cumulative lifetime-attributable-risk (LARtot) of tumor incidence and mortality of multiple CT exposures. Method A defines LARtot as the summation of the risk of each separate exposure. Method B was defined ...
Major Jason T JT Department of - - 2014
Research on the relations of personality traits to intelligence has primarily been concerned with linear associations. Yet, there are no a priori reasons why linear relations should be expected over nonlinear ones, which represent a much larger set of all possible associations. Using 2 techniques, quadratic and generalized additive models, ...
Tomás Inés I Department of Methodology of Behavioral Sciences, University of Valencia, Valencia, - - 2014
Test of measurement invariance across translated versions of questionnaires is a critical prerequisite to comparing scores on the different versions. In this study, we used exploratory structural equation modeling (ESEM) as an alternative approach to evaluate the measurement invariance of the Spanish version of the Physical Self-Description Questionnaire (PSDQ). The ...
Wang Zhiyong Z 1 Toyota Technological Institute at Chicago , Chicago, - - 2014
Abstract Sparse modeling, a feature selection method widely used in the machine-learning community, has been recently applied to identify associations in genetic studies including expression quantitative trait locus (eQTL) mapping. These genetic studies usually involve high dimensional data where the number of features is much larger than the number of ...
Sun Y Y Animal Breeding and Genomics Centre, Wageningen University, PO Box 338, 6700 AH Wageningen, the - - 2014
Because of a ban on the use of beak trimming in some European countries, feather pecking is becoming a substantial problem in the layer industry, both from animal welfare and economic points of view. The feather condition score (FCS) as a measure of feather damage has been shown to be ...
Wu Joseph T JT Department of Community Medicine and School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of - - 2014
Seroprevalence survey is the most practical method for accurately estimating infection attack rate (IAR) in an epidemic such as influenza. These studies typically entail selecting an arbitrary titer threshold for seropositivity (e.g. microneutralization [MN] 1∶40) and assuming the probability of seropositivity given infection (infection-seropositivity probability, ISP) is 100% or similar ...
Kamaluddin M R MR Universiti Sains Malaysia, School of Health Sciences, Forensic Sciences Programme, 16150 Kubang Kerian, Kelantan, Malaysia. - - 2014
Murder is the most notorious crime that violates religious, social and cultural norms. Examining the types and number of different killing methods that used are pivotal in a murder case. However, the psychological traits underlying specific and multiple killing methods are still understudied. The present study attempts to fill this ...
Krause Neal N Department of Health Behavior and Health Education, School of Public Health, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109-2029, - - 2014
Research indicates that meaning in life is an important correlate of health and well-being. However, relatively little is known about the way a sense of meaning may change over time. The purpose of this study is to explore two ways of assessing change in meaning within a second-order confirmatory factor ...
Maciejewski Wes W Department of Mathematics, The University of British Columbia, Vancouver, British Columbia, - - 2014
Evolutionary graph theory is a well established framework for modelling the evolution of social behaviours in structured populations. An emerging consensus in this field is that graphs that exhibit heterogeneity in the number of connections between individuals are more conducive to the spread of cooperative behaviours. In this article we ...
Burns G Leonard - - 2014
To determine if ADHD/ODD symptoms are better represented by a bifactor model of disruptive behavior [general disruptive behavior factor along with specific inattention (IN), specific hyperactivity/impulsivity (HI), and specific oppositional defiant disorder (ODD) factors] than an ADHD-IN, ADHD-HI, and ODD three-factor model. Mothers' and fathers' ratings of ADHD-IN, ADHD-HI, and ...
Nevado B - - 2014
Decreasing costs of next-generation sequencing (NGS) experiments have made a wide range of genomic questions open for study with nonmodel organisms. However, experimental designs and analysis of NGS data from less well-known species are challenging because of the lack of genomic resources. In this work, we investigate the performance of ...
Lowitt Eric - - 2014
Climate change presents clear and pressing threats to business--materials and product shortages, price volatility, legal bans or consumer backlash, and damaged transportation infrastructure, to name just a few. But there are opportunities as well. Lowitt, a consultant in the sustainability field, has developed a series of detailed checklists that will ...
Shimadera Hikari - - 2014
Improvement of air quality models is required so that they can be utilized to design effective control strategies for fine particulate matter (PM2.5). The Community Multiscale Air Quality modeling system was applied to the Greater Tokyo Area of Japan in winter 2010 and summer 2011. The model results were compared ...
Baghaei Purya - - 2014
The validity and psychometric properties of a new Persian adaptation of the Foreign Language Reading Anxiety Scale were investigated. The scale was translated into Persian and administered to 160 undergraduate students (131 women, 29 men; M age = 23.4 yr., SD = 4.3). Rasch model analysis on the scale's original ...
Pate M L - - 2014
The purpose of this study was to assess how selected variables affect the confined-space hazard perceptions of farmers in Utah. A confined space was defined as "any space found in an agricultural workplace that was not designed or intended as a regular workstation, has limited or restricted means of entry ...
O Brien Thomas F TF Department of Medicine, Brigham and Women´s Hospital and Harvard Medical School, Boston, MA, - - 2014
The microbes that infect us spread in global and local epidemics, and the resistance genes that block their treatment spread within and between them. All we can know about where they are to track and contain them comes from the only places that can see them, the world´s microbiology laboratories, ...
Sen Shibotosh S Medical Officer, West Bengal Public Health & Administrative Service, Directorate of Health Services, Government of West Bengal, Swasthya Bhavan, Kolkata, West Bengal, - - 2014
A descriptive study was designed based on secondary data of Kolkata Municipal Corporation (KMC). To estimate present status and trend of Malaria in KMC area; to determine time, place, person distribution of Malaria; to identify high-risk areas to mitigate future outbreak, and to recommend control strategies of Malaria. Three different ...
Manzotti Riccardo R Institute "GP Fabris", IULM University, via Carlo Bo, 8, 20143 Milano, - - 2014
The issue of integration in neural networks is intimately connected with that of consciousness. In this paper, integration as an effective level of physical organization is contrasted with a methodological integrative approach. Understanding how consciousness arises out of neural processes requires a model of integration in just causal physical terms. ...
Bohlmeijer Ernst T ET a Department of Psychology, Health & Technology , University of Twente , Enschede , The - - 2014
Objectives: As people grow older, identity development in later life becomes a more and more relevant topic. Studying processes that hinder or promote identity development in later life is of importance. Within this broader field, there has been a growing interest in narrative foreclosure. Our goal was to develop a ...
Devarajan Karthik K Department of Biostatistics and Bioinformatics, Fox Chase Cancer Center, Philadelphia, PA 19111, U.S.A. - - 2014
Nonnegative matrix factorization (NMF) by the multiplicative updates algorithm is a powerful machine learning method for decomposing a high-dimensional nonnegative matrix V into two nonnegative matrices, W and H, where V~WH. It has been successfully applied in the analysis and interpretation of large-scale data arising in neuroscience, computational biology, and ...
Karacaören Burak B Department of Animal Science, Akdeniz University, Antalya 07059, - - 2014
Most of the associated single nucleotide polymorphisms (SNPs) for genome wide association studies (GWAS) explain very little proportion of phenotypic variance in outbred populations. One reason is; large number of markers raises the problem of multiple hypothesis testing correction using conservative statistical tests in single marker models. Admixture mapping could ...
Floody Owen R OR Department of Psychology and Program in Neuroscience, Bucknell University, Lewisburg, Pennsylvania 17837. Electronic address: - - 2014
Studies using factor analysis have helped describe the organization of copulatory behavior in male rodents. However, the focus of these studies on a few traditional measures may have limited their results. To test this possibility, 74 sexually-experienced male hamsters were observed as they copulated with stimulus females. The measures collected ...
Sobas Frédéric F aHaemostasis Laboratory, Edouard Herriot Hospital, Lyon, France bDepartment of Statistics, Athens University of Economics and Business, Athens, Greece cCryopep, Montpellier, France *Frédéric Sobas and Panagiotis Tsiamyrtzis contributed equally to the writing of the - - 2014
An ideal medical biology internal quality control (IQC) plan should both monitor the laboratory methods efficiently and implement the relevant clinical-biological specifications. However, many laboratories continue to use the 12s quality control rule without considering the high risk of false rejection and without considering the relationship of analytical performance to ...
Taylor Graeme J GJ Department of Psychiatry, University of Toronto and Mount Sinai Hospital, Toronto, Ontario, Canada. Electronic address: - - 2014
Several studies have demonstrated associations between alexithymia, adult attachment styles, personality traits, and relationship adjustment. Only two studies, however, have explored associations between alexithymia and attachment representations. As part of a larger investigation of maternal and infant attachment, the current study explored this association in a sample of 97 pregnant ...
Degiorgio Michael - - 2014
As it becomes increasingly possible to obtain DNA sequences of orthologous genes from diverse setsof taxa, species trees are frequently being inferred from multilocus data. However, the behavior ofmany methods for performing this inference has remained largely unexplored. Some methods have been proven to be consistent given certain evolutionary models, ...
Booth Tom T University of Edinburgh, Edinburgh, - - 2014
The current article compares the use of exploratory structural equation modeling (ESEM) as an alternative to confirmatory factor analytic (CFA) models in personality research. We compare model fit, factor distinctiveness, and criterion associations of factors derived from ESEM and CFA models. In Sample 1 (n = 336) participants completed the ...
Navarro Y Y Servicio Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain; Centro de Vigilancia Sanitaria Veterinaria (VISAVET), Universidad Complutense, Madrid, Spain; CEI Campus Moncloa, UCM-UPM, Madrid, Spain; CIBER Enfermedades Respiratorias, CIBERES, - - 2014
Spoligotyping is the most widely used method for genotyping Mycobacterium bovis (M. bovis). However, its discriminatory power varies widely between countries. MIRU-VNTR typing could be a promising alternative, although it generally requires the time consuming and laborious simplex PCR assays using standard agarose gel electrophoresis. The accuracy of this approach depends ...
Arab Ali - - 2014
Malaria is a leading cause of mortality worldwide. There is currently conflicting data and interpretation on how variability in climate factors affects the incidence of malaria. This study presents a hierarchical Bayesian modelling framework for the analysis of malaria versus climate factors in West Africa. The hierarchical Bayesian framework takes ...
Argyrides Marios M Neapolis University Pafos, Cyprus. Electronic address: - - 2014
The current study aimed to confirm the factor structure and reliability of the newly translated Greek version of the Sociocultural Attitudes Towards Appearance Questionnaire-3 (SATAQ-3) among 1753 Greek-Cypriot high school students. Results of the structural equation modeling indicated a very good fit with the original four-factor structure of the SATAQ-3 ...
Cheon Kyeongmi K Biometrics Research, Merck, West Point, PA 19486, - - 2014
Markov models used to analyze transition patterns in discrete longitudinal data are based on the limiting assumption that individuals follow the common underlying transition process. However, when one is interested in diseases with different disease or severity subtypes, explicitly modeling subpopulation-specific transition patterns may be appropriate. We propose a model ...
Sadyś Magdalena M National Pollen and Aerobiology Research Unit, University of Worcester, Henwick Grove, WR2 6AJ, Worcester, England, UK, - - 2014
An aerobiological survey was conducted through five consecutive years (2006-2010) at Worcester (England). The concentration of 20 allergenic fungal spore types was measured using a 7-day volumetric spore trap. The relationship between investigated fungal spore genera and selected meteorological parameters (maximum, minimum, mean and dew point temperatures, rainfall, relative humidity, ...
Rehder Bob B Department of Psychology, New York University, New York, NY 10003, United States. Electronic address: - - 2014
Causal graphical models (CGMs) are a popular formalism used to model human causal reasoning and learning. The key property of CGMs is the causal Markov condition, which stipulates patterns of independence and dependence among causally related variables. Five experiments found that while adult's causal inferences exhibited aspects of veridical causal ...
Devon Hjelm R R Department of Computer Science, University of New Mexico, Albuquerque, NM 87131, USA; Mind Research Network, Albuquerque, NM 87106, - - 2014
Matrix factorization models are the current dominant approach for resolving meaningful data-driven features in neuroimaging data. Among them, independent component analysis (ICA) is arguably the most widely used for identifying functional networks, and its success has led to a number of versatile extensions to group and multimodal data. However there ...
Van der Borght Koen - - 2014
Different high-dimensional regression methodologies exist for the selection of variables to predict a continuous variable. To improve the variable selection in case clustered observations are present in the training data, an extension towards mixed-effects modeling (MM) is requested, but may not always be straightforward to implement.In this article, we developed ...
Wong Quincy J J QJ Macquarie University, Sydney, New South Wales, - - 2014
A body of research has demonstrated that individuals with Asian ethnicity endorse higher levels of fear of negative evaluation compared with individuals with European ethnicity. To date, no study has examined whether this Asian-European difference may be confounded by the differential interpretation of the measures of fear of negative evaluation ...
Käfer Jos J Université de Lyon; Université Lyon 1 ; CNRS; UMR 5558; Laboratoire de Biométrie et Biologie Evolutive; F-69622, Villeurbanne, - - 2014
Comparing species richness in sister clades that differ in a character state is one of the ways to study factors influencing diversification. While most of its applications have focussed on traits that increase diversification, some have been used to study the association of a trait with lower species richness, e.g. ...
Kolodziejczyk Julia K - - 2014
Abstract Purpose . There is a need for a self-report measure that assesses use of recommended strategies related to weight management. Design . Cross-sectional analysis. Setting . Universities, community. Subjects . Exploratory factor analysis (EFA) involved data from 404 overweight/obese young adults (mean age = 22 years, 48% non-Hispanic white, ...
Sha Qiuying Q Department of Mathematical Sciences, Michigan Technological University, Houghton, MI, - - 2014
With the development of sequencing techniques, there is increasing interest to detect associations between rare variants and complex traits. Quite a few statistical methods to detect associations between rare variants and complex traits have been developed for unrelated individuals. Statistical methods for detecting rare variant associations under family-based designs have ...
Fernández Rosa R Museum of Comparative Zoology & Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, MA 02138, - - 2014
Relationships between the five extant orders of centipedes have been considered solved based on morphology. Phylogenies based on samples of up to a few dozen genes have largely been congruent with the morphological tree apart from an alternative placement of one order, the relictual Craterostigmomorpha, consisting of two species in ...
Pertoldi Cino C Department of Biotechnology, Chemistry and Environmental Engineering, Section of Biology and Environmental Science, Aalborg University, Sohngårdsholmsvej 57, 9000, Aalborg, Denmark, - - 2014
Theoretical ecologists have long sought to understand how the persistence of populations depends on the interactions between exogenous (biotic and abiotic) and endogenous (e.g., demographic and genetic) drivers of population dynamics. Recent work focuses on the autocorrelation structure of environmental perturbations and its effects on the persistence of populations. Accurate ...
Hagemo Jostein S - - 2014
Exsanguination due to trauma-induced coagulopathy is a continuing challenge in emergency trauma care. Fibrinogen is a crucial factor for haemostatic competence, and may be the factor that reaches critically low levels first. Early fibrinogen substitution is advocated by a number of authors. Little evidence exists regarding the indications for fibrinogen ...
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