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Cleary Sean D SD The George Washington University School of Public Health and Health Services, Department of Epidemiology and Biostatistics, Washington, DC, - - 2014
Little research has focused on item analysis and factor structure of the most commonly used measures of insight. We examined the factorial structure of the Birchwood Insight Scale (BIS), a brief, easy-to-administer, self-report measure. We studied the BIS in 327 first-episode psychosis patients, including a test sample (n=163) and a ...
Kessler David C DC SAS Institute Inc., Advanced Analytics - - 2014
Estimating a phenotype distribution conditional on a set of discrete-valued predictors is a commonly encountered task. For example, interest may be in how the density of a quantitative trait varies with single nucleotide polymorphisms and patient characteristics. The subset of important predictors are not usually known in advance. This becomes ...
Busse Michelle M a Washington School of Professional Psychology , Seattle, WA , - - 2014
The current study was designed to advance general research investigating the Personality Assessment Inventory (PAI), by examining whether the psychometric properties of the PAI would generalize to a sample differing from the original standardization sample. Specifically, the reliability and factor structure of the PAI were examined in a mixed neuropsychological ...
Evangelista C C CNRS, Université Paul Sabatier, ENFA, UMR 5174 EDB (Laboratoire Évolution & Diversité Biologique), 118 route de Narbonne, F-31062, Toulouse, France; Université Toulouse 3 Paul Sabatier, CNRS, UMR5174 EDB, F-31062, Toulouse, - - 2014
Many generalist populations are composed of specialized individuals that use a narrow part of the population's niche. Ecological theories predict that individual specialization and population trophic niche are determined by biotic interactions and resource diversity emerging from environmental variations (i.e., ecological opportunities). However, due to the paucity of empirical and ...
Bateson Thomas F TF National Center for Environmental Assessment, United States Environmental Protection Agency, Washington, District of Columbia, - - 2014
Recent meta-analyses of occupational epidemiology studies identified two important exposure data quality factors in predicting summary effect measures for asbestos-associated lung cancer mortality risk: sufficiency of job history data and percent coverage of work history by measured exposures. The objective was to evaluate different exposure parameterizations suggested in the asbestos ...
Smith Watts Ashley K AK University of - - 2014
Studies have reported an inverse association between language development and behavioral inhibition or shyness across childhood, but the direction of this association remains unclear. This study tested alternative hypotheses regarding this association in a large sample of toddlers. Data on behavioral inhibition and expressive and receptive language abilities were collected ...
Geelen Anouk A Division of Human Nutrition, Wageningen University, PO Box 8129, 6700 EV Wageningen, The - - 2014
To illustrate the impact of intake-related bias in FFQ and 24 h recall (24hR), and correlated errors between these methods, on intake-health associations. Dietary intake was assessed by a 180-item semi-quantitative FFQ and two 24hR. Urinary N and urinary K were estimated from two 24 h urine samples. We compared ...
Urbanczik Robert R Department of Physiology, and Center for Learning, Cognition and Memory, University of Bern, Bühlplatz 5, CH-3012 Bern, - - 2014
Recent modeling of spike-timing-dependent plasticity indicates that plasticity involves as a third factor a local dendritic potential, besides pre- and postsynaptic firing times. We present a simple compartmental neuron model together with a non-Hebbian, biologically plausible learning rule for dendritic synapses where plasticity is modulated by these three factors. In ...
Pattnaik Swetansu - - 2014
The rapid advancements in the field of genome sequencing are aiding our understanding on many biological systems. In the last five years, computational biologists and bioinformatics specialists have come up with newer, better and more efficient tools towards the discovery, analysis and interpretation of different genomic variants from high-throughput sequencing ...
Lee Wen-Chung - - 2014
The randomized controlled study is the gold-standard research method in biomedicine. In contrast, the validity of a (nonrandomized) observational study is often questioned because of unknown/unmeasured factors, which may have confounding and/or effect-modifying potential. In this paper, the author proposes a perturbation test to detect the bias of unmeasured factors ...
Preti Antonio A Center of Liaison Psychiatry and Psychosomatics, University Hospital, University of Cagliari, Italy; Section on Clinical Psychology, Department of Education, Psychology, Philosophy, University of Cagliari, Italy; Genneruxi Medical Center, Cagliari, Italy. Electronic address: - - 2014
The study of hallucination-like experiences (HLEs) in non-clinical populations is increasingly used to corroborate etiological models of psychosis. This method capitalizes on the absence of confounding factors that typically affect the study of hallucinations in clinical subjects. To estimate the prevalence of HLEs in young adults; validate the mutidimensionality and ...
Zhang Guangjian G Psychology Department, Haggar Hall, University of Notre Dame, Notre Dame, IN, 46556, USA, - - 2014
Exploratory process factor analysis (EPFA) is a data-driven latent variable model for multivariate time series. This article presents analytic standard errors for EPFA. Unlike standard errors for exploratory factor analysis with independent data, the analytic standard errors for EPFA take into account the time dependency in time series data. In ...
Wintle Bonnie C BC Environmental Science, School of Botany, University of Melbourne, Melbourne, 3010, - - 2014
Bayesian networks (BNs) are graphical modeling tools that are generally recommended for exploring what-if scenarios, visualizing systems and problems, and for communication between stakeholders during decision making. In this article, we investigate their potential for exploring different perspectives in trade disputes. To do so, we draw on a specific case ...
Andrews Kimberly R KR School of Biological & Biomedical Sciences, Durham University, South Road, DH1 3LE, Durham, - - 2014
Next Generation Sequencing (NGS) technology is revolutionizing the fields of population genetics, molecular ecology, and conservation biology. But it can be challenging for researchers to learn the new and rapidly evolving techniques required to use NGS data. A recent workshop entitled "Population Genomic Data Analysis" was held to provide training ...
Aandahl R Zachariah RZ University of New South - - 2014
Exact computational methods for inference in population genetics are intuitively preferable to approximate analyses. We reconcile two starkly different estimates of the reproductive number of tuberculosis from previous studies that used the same genotyping data and underlying model. This demonstrates the value of approximate analyses in validating exact methods.
Vig Dhruv K DK Department of Molecular and Cellular Biology, University of Arizona, Tucson, - - 2014
To elucidate pathogen-host interactions during early Lyme disease, we developed a mathematical model that explains the spatiotemporal dynamics of the characteristic first sign of the disease, a large (≥5-cm diameter) rash, known as an erythema migrans. The model predicts that the bacterial replication and dissemination rates are the primary factors ...
Burton Rob J F RJ Bygdeforskning (Centre for Rural Research), Universitetssenteret, Dragvoll, N-7491 Trondheim, Norway. Electronic address: - - 2014
Many agricultural studies have observed a relationship between farmer demographic characteristics and environmental behaviours. These relationships are frequently employed in the construction of models, the identification of farmer types, or as part of more descriptive analyses aimed at understanding farmers' environmental behaviour. However, they have also often been found to ...
Schrooten Chris - - 2014
Imputation of genotypes from low-density to higher density chips is a cost-effective method to obtain high-density genotypes for many animals, based on genotypes of only a relatively small subset of animals (reference population) on the high-density chip. Several factors influence the accuracy of imputation and our objective was to investigate ...
Pérez-Rodríguez Antón A Departamento de Zoología y Antropología Física, Universidad Complutense de Madrid, E-28040, Madrid, - - 2014
The importance of parasitism for host populations depends on local parasite richness and prevalence: usually host individuals face higher infection risk in areas where parasites are most diverse, and host dispersal to or from these areas may have fitness consequences. Knowing how parasites are and will be distributed in space ...
Silva F F FF Departamento de Zootecnia, Universidade Federal de Viçosa, 36570-000, Viçosa, - - 2014
In the era of genome-wide selection (GWS), genotype-by-environment (G×E) interactions can be studied using genomic information, thus enabling the estimation of SNP marker effects and the prediction of genomic estimated breeding values (GEBVs) for young candidates for selection in different environments. Although G×E studies in pigs are scarce, the use ...
Chang Song - - 2014
This study uses 3-level, 2-wave time-lagged data from a random sample of 55 high-technology firms, 238 teams, and 1,059 individuals in China to investigate a multilevel combinational model of employee creativity. First, we hypothesize that firm (macrolevel) high-commitment work systems are conducive to individual (microlevel) creativity. Furthermore, we hypothesize that ...
Peart Claire R CR Department of Genetics, Evolution & Environment, University College London, Gower Street, London, WC1E 6BT, UK; Department of Life Sciences, The Natural History Museum, Cromwell Road, South Kensington, London, SW7 5BD, UK. Electronic address: - - 2014
Lake Tanganyika (LT) is a biodiversity hotspot supporting many endemic radiations that provide comparative systems in which to investigate if there are common factors leading to the build-up of its considerable diversity. Despite LT containing the highest diversity of lacustrine catfishes on Earth, the evolutionary relationships of nocturnal catfishes within ...
Sjödin Per P Department of Evolutionary Biology and SciLife Lab Uppsala, Uppsala - - 2014
Ancestral relationships between populations separated by time represent an often neglected dimension in population genetics, a field which historically has focused on analysis of spatially distributed samples from the same point in time. Models are usually straightforward when two time-separated populations are assumed to be completely isolated from all other ...
Caminade Cyril C Institute of Infection and Global Health, Department of Epidemiology and Population Health and School of Environmental Sciences, Department of Geography and Planning, University of Liverpool, Liverpool L69 7ZT, United - - 2014
Malaria is an important disease that has a global distribution and significant health burden. The spatial limits of its distribution and seasonal activity are sensitive to climate factors, as well as the local capacity to control the disease. Malaria is also one of the few health outcomes that has been ...
Szöke A A AP-HP, Groupe Hospitalier "Mondor", Pôle de Psychiatrie, Créteil, 94000, France, - - 2014
Despite significant progresses in our knowledge of the risk factors for schizophrenia, we still are several steps short of implementing effective prevention strategies. Universal prevention strategies have several theoretical advantages but their implementation has been limited to date by their costs and lack of methods to assess their efficiency. To ...
Ewings Sean M SM 1Southampton Statistical Sciences Research Institute, University of Southampton, Southampton, - - 2014
This article presents a new statistical approach to analysing the effects of everyday physical activity on blood glucose concentration in people with type 1 diabetes. A physiologically based model of blood glucose dynamics is developed to cope with frequently sampled data on food, insulin and habitual physical activity; the model ...
Tyrcha Joanna - - 2014
We derive learning rules for finding the connections between units in stochastic dynamical networks from the recorded history of a "visible'' subset of the units. We consider two models. In both of them, the visible units are binary and stochastic. In one model the "hidden'' units are continuous-valued, with sigmoidal ...
Rajdl Kamil - - 2014
Fano factor is one of the most widely used measures of variability of spike trains. Its standard estimator is the ratio of sample variance to sample mean of spike counts observed in a time window and the quality of the estimator strongly depends on the length of the window. We ...
Goldade Mary Patricia MP a Office of Technical and Management Services , United States Environmental Protection Agency Region 8 , Denver , - - 2014
At asbestos-contaminated sites, exposure assessment requires measurement of airborne asbestos concentrations; however, the choice of preparation steps employed in the analysis has been debated vigorously among members of the asbestos exposure and risk assessment communities for many years. This study finds that the choice of preparation technique used in estimating ...
Xiao Canhua C Nell Hodgson Woodruff School of Nursing, Emory University, 1520 Clifton Road NE, Room 225, Atlanta, GA, - - 2014
In this article, we address statistical techniques appropriate for examining longitudinal changes in cancer symptom clusters. When the cluster structure is not pre-determined, researchers may examine symptom clusters either at each time point or use composite scores to examine the symptom clusters across time points. When the cluster structures are ...
Suarez-Kurtz Guilherme G Programa de Farmacologia, Instituto Nacional do Câncer, Rio de Janeiro, RJ, 20231-050, Brazil. - - 2014
The heterogeneous Brazilian population, with European, African and Amerindian ancestral roots is a model case for exploring the impact of population admixture on the frequency distribution of polymorphisms in pharmacogenes, and the design and interpretation of pharmacogenomics trials. Examples drawn from studies carried out by researchers of the Brazilian pharmacogenomics ...
Jiang Qi Q School of Computer Science and Technology, Xidian University, Xi'an, China, - - 2014
To ensure only authorized access to medical services, several authentication schemes for telecare medicine information systems (TMIS) have been proposed in the literature. Due to its better performance than traditional cryptography, Hao et al. proposed an authentication scheme for TMIS using chaotic map based cryptography. They claimed that their scheme ...
Jackson Ben B School of Sport Science, Exercise and Health, University of Western Australia, Crawley, WA, - - 2014
Drawing from a three-factor model of organizational commitment, we sought to provide validity evidence for a multidimensional conceptualization designed to capture adolescent athletes' commitment to their coach-athlete relationship or their team. In Study 1, 335 individual-sport athletes (Mage = 17.32, SD = 1.38) completed instruments assessing affective, normative, and continuance ...
Shi Benyun B Department of Computer Science, Hong Kong Baptist University, Kowloon Tong, Hong - - 2014
The transmission networks of Plasmodium vivax characterize how the parasite transmits from one location to another, which are informative and insightful for public health policy makers to accurately predict the patterns of its geographical spread. However, such networks are not apparent from surveillance data because P. vivax transmission can be ...
Liebman Kelly A KA University of California, Davis, Davis, California, United States of - - 2014
Heterogeneous mosquito biting results in different individuals in a population receiving an uneven number of bites. This is a feature of many vector-borne disease systems that, if understood, could guide preventative control efforts toward individuals who are expected to contribute most to pathogen transmission. We aimed to characterize factors determining ...
Shreif Zeina Z Laboratory of Biological Modeling, National Institutes of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, United States of - - 2014
As scientific advances in perturbing biological systems and technological advances in data acquisition allow the large-scale quantitative analysis of biological function, the robustness of organisms to both transient environmental stresses and inter-generational genetic changes is a fundamental impediment to the identifiability of mathematical models of these functions. An approach to ...
Fan Judith E JE Department of Psychology, Princeton University, Princeton, NJ 08544 jefan@princeton.edu - - 2014
Bentley et al.'s framework assigns phenomena of personal and collective decision-making to regions of a dual-axis map. Here, we propose that understanding the collective dynamics of decision-making requires consideration of factors that guide movement across the map. One such factor is self-awareness, which can lead a group to seek out ...
Keane Mark T MT School of Computer Science and Informatics, University College Dublin, Belfield, Dublin 4, Ireland. mark.keane@ucd.ie - - 2014
The textual, big-data literature misses Bentley et al.'s message on distributions; it largely examines the first-order effects of how a single, signature distribution can predict population behaviour, neglecting second-order effects involving distributional shifts, either between signature distributions or within a given signature distribution. Indeed, Bentley et al. themselves under-emphasise the ...
Engell Vilhelm V Department of Orthopaedic Surgery and Traumatology (Affiliated to Institute of Clinical Research, University of Southern Denmark, Denmark), Odense University Hospital, Sdr. Boulevard 29, 5000, Odense C., Denmark, - - 2014
The aetiology of congenital clubfoot is unclear. Although studies on populations, families, and twins suggest a genetic component to the aetiology, other studies have identified environmental factors. The purpose of this study was to calculate heritability in order to determine to what extent genetic and/or environmental factors contribute to the ...
Gluskin Rebecca Tave RT Children's Hospital Informatics Program, Children's Hospital Boston, Boston, Massachusetts, United States of - - 2014
Dengue is a common and growing problem worldwide, with an estimated 70-140 million cases per year. Traditional, healthcare-based, government-implemented dengue surveillance is resource intensive and slow. As global Internet use has increased, novel, Internet-based disease monitoring tools have emerged. Google Dengue Trends (GDT) uses near real-time search query data to ...
Maia Aline De Holanda Nunes Ade - - 2014
We developed a computer program for life table analysis using the open source, free software programming environment R. It is useful to quantify chronic nonlethal effects of treatments on arthropod populations by summarizing information on their survival and fertility in key population parameters referred to as fertility life table parameters. ...
Bentley R Alexander - - 2014
In a recent New York Times column (April 15, 2013), David Brooks discussed how the big-data agenda lacks a coherent framework of social theory – a deficiency that the Bentley, O'Brien, and Brock (henceforth BOB) model was meant to overcome. Or, stated less pretentiously, the model was meant as a ...
Dickson E D ED Department of Nuclear Engineering and Radiation Health Physics, - - 2014
The human health and environmental effects following a postulated accidental release of radioactive material to the environment have been a public and regulatory concern since the early development of nuclear technology. These postulated releases have been researched extensively to better understand the potential risks for accident mitigation and emergency planning ...
Rahman Mohammad Shamsur MS Department of Comparative Biomedicine and Food Science (BCA), University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro (PD), - - 2014
Vibrio is a very diverse genus responsible for different human and animal diseases. The accurate identification of Vibrio at the species level is important to assess the risks related to public health and diseases of aquatic organisms. The ecology of Vibrio spp., together with their genetic background, represents an important ...
Rose Sherri - - 2014
In a recent issue of the Journal, VanderWeele and Vansteelandt (Am J Epidemiol. 2011;174(10):1197-1203) discussed an inverse probability weighting method for case-control studies that could be used to estimate an additive interaction effect, referred to as the "relative excess risk due to interaction." In this article, we reinforce the well-known ...
Vanderweele Tyler J - - 2014
In the accompanying commentary, Rose and van der Laan (Am J Epidemiol. 0000;000(00):000-000) criticize the relative excess risk due to interaction (RERI) measure, the use of additive interaction, and the weighting approach we developed to assess RERI with case-control data. In this commentary, we note some of the advantages of ...
Podlaski Rafał R Department of Nature Protection, Institute of Biology, Jan Kochanowski University, ul. Świętokrzyska 15, 25-406 Kielce, Poland. Electronic address: - - 2014
In recent years finite-mixture models have been employed to approximate and model empirical diameter at breast height (DBH) distributions. We used two-component mixtures of either the Weibull distribution or the gamma distribution for describing the DBH distributions of mixed-species, two-cohort forest stands, to analyse the relationships between the DBH components, ...
Mousavi Sayyed R SR Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; School of Computer Science, Institute for Research in Fundamental Sciences, Tehran, Iran. Electronic address: - - 2014
Human haplotypes include essential information about SNPs, which in turn provide valuable information for such studies as finding relationships between some diseases and their potential genetic causes, e.g., for Genome Wide Association Studies. Due to expensiveness of directly determining haplotypes and recent progress in high throughput sequencing, there has been ...
Matiatos Ioannis I Faculty of Geology and Geoenvironment, University of Athens, Athens 15784, - - 2014
The present study involves an integration of the hydrogeological, hydrochemical and isotopic (both stable and radiogenic) data of the groundwater samples taken from aquifers occurring in the region of northeastern Peloponnesus. Special emphasis has been given to health-related ions and isotopes in relation to the WHO and USEPA guidelines, to ...
Kunkel Adrianne A a Department of Communication Studies , University of Kansas , Lawrence , Kansas , - - 2014
A typology of meaning reconstruction in grief-related discourse is offered as an extension to extant approaches to meaning making as a factor in relieving distress. Sensemaking, acceptance or resignation without understanding, realization of benefits via positive reappraisal, and realignment of roles and relationships are advanced as the 4 types of ...
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