Search Results
Results 1 - 50 of 2220
1 2 3 4 5 6 7 8 9 10 >
Barrett Paul M PM Department of Earth Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK - - 2014
Current characterizations of early dinosaur evolution are incomplete: existing palaeobiological and phylogenetic scenarios are based on a fossil record dominated by saurischians and the implications of the early ornithischian record are often overlooked. Moreover, the timings of deep phylogenetic divergences within Dinosauria are poorly constrained owing to the absence of ...
Panchal Mitesh B MB Vibration and Noise Control Laboratory, Mechanical and Industrial Engineering Department, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India. - - 2014
In this study, the feasibility of single walled boron nitride nanotube (SWBNNT)-based biosensors has been ensured considering the continuum modelling-based simulation approach, for mass-based detection of various bacterium/viruses. Various types of bacterium or viruses have been taken into consideration at the free-end of the cantilevered configuration of the SWBNNT, as ...
Panchal Mitesh B MB Vibration and Noise Control Laboratory, Mechanical and Industrial Engineering Department, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India. - - 2014
The unprecedented dynamic characteristics of nanoelectromechanical systems make them suitable for nanoscale mass sensing applications. Owing to superior biocompatibility, boron nitride nanotubes (BNNTs) are being increasingly used for such applications. In this study, the feasibility of single walled BNNT (SWBNNT)-based bio-sensor has been explored. Molecular structural mechanics-based finite element (FE) ...
Engel Konrad K Institut für Mathematik, Universität Rostock, 18057, Rostock, Germany, - - 2014
The multichannel recordings of signals of many cells cultivated on a multielectrode array (MEA) impose some challenging problems. A meanwhile classic problem is the separation of the recordings of a single electrode into classes of recordings where each class is caused by a single cell. This is the well-known spike ...
Higham Tom T Oxford Radiocarbon Accelerator Unit, Research Laboratory for Archaeology &the History of Art, University of Oxford, Oxford OX1 3QY, - - 2014
The timing of Neanderthal disappearance and the extent to which they overlapped with the earliest incoming anatomically modern humans (AMHs) in Eurasia are key questions in palaeoanthropology. Determining the spatiotemporal relationship between the two populations is crucial if we are to understand the processes, timing and reasons leading to the ...
Buffa R R Department of Environmental and Life Sciences, University of Cagliari, Cittadella Universitaria, Monserrato, - - 2014
This review is directed to define the efficacy of bioelectrical impedance vector analysis (BIVA) for assessing two-compartment body composition. A systematic literature review using MEDLINE database up to 12 February 2014 was performed. The list of papers citing the first description of BIVA, obtained from SCOPUS, and the reference lists ...
Zhang Ying - - 2014
A lack of X-ray or NMR structures of proteins inhibits their further study and characterization, motivating the development of new ways of analyzing structural information without crystal structures. The combination of hydrogen deuterium exchange mass spectrometry (HDX-MS) data in conjunction with homology modeling (HM) can provide improved structure and mechanistic ...
Lee Mong-Chuan MC Institute of Biotechnology, Central Taiwan University of Science and Technology, 666, Bu-zih Road, Bei-tun District, Taichung, 40601, - - 2014
A mathematical model system was derived to describe the kinetics of ammonium nitrification in a fixed biofilm reactor using dewatered sludge-fly ash composite ceramic particle as a supporting medium. The model incorporates diffusive mass transport and Monod kinetics. The model was solved using a combination of the orthogonal collocation method ...
Camina Martín M A MA Area of Nutrition and Food Science, Faculty of Medicine, Universidad de Valladolid, Valladolid, - - 2014
In clinical practice, geriatric nutritional assessment usually includes nutritional screening, a simple anthropometric assessment, measurement of various biochemical parameters, such as serum albumin, and sometimes (not always) body composition analysis (BCA). However, there is a high prevalence of undiagnosed malnutrition in patients with dementia. Several factors contribute to this situation; ...
Sack Lawren L Department of Ecology and Evolution, University of California Los Angeles, 621 Charles E. Young Drive South, Los Angeles, California 90095, USA - - 2014
It has been recently proposed that leaf vein length per area ( VLA : ) is the major determinant of leaf mass per area ( LMA : ), and would thereby determine other traits of the leaf economic spectrum (LES), such as photosynthetic rate per mass (A mass), nitrogen concentration ...
Pernet C R CR Centre for Clinical Brain Sciences, Neuroimaging Sciences, University of Edinburgh, Edinburgh, UK. Electronic address: - - 2014
In recent years, analyses of event related potentials/fields have moved from the selection of a few components and peaks to a mass-univariate approach in which the whole data space is analysed. Such extensive testing increases the number of false positives and correction for multiple comparisons is needed. Here we review ...
Traill Lochran W LW Division of Biology, Imperial College London, Silwood Park, Berkshire SL5 7PY, United Kingdom;School of Animal, Plant and Environmental Sciences, University of the Witwatersrand, Wits 2050, South Africa; and lochran.traill@gmail.com - - 2014
Selective harvest, such as trophy hunting, can shift the distribution of a quantitative character such as body size. If the targeted character is heritable, then there will be an evolutionary response to selection, and where the trait is not, then any response will be plastic or demographic. Identifying the relative ...
Tarabini Marco M a Department of Mechanical Engineering , Politecnico di Milano , Lecco , - - 2014
The human response to vibration is typically studied using linear estimators of the frequency response function, although different literature works evidenced the presence of non-linear effects in whole-body vibration response. This paper analyses the apparent mass of standing subjects using the conditioned response techniques in order to understand the causes ...
Giannini Norberto Pedro NP Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Tucumán, Argentina; Universidad Nacional de Tucumán, Facultad de Ciencias Naturales e Instituto Miguel Lillo, San Miguel de Tucumán, Tucumán, Argentina; Department of Mammalogy, American Museum of Natural History, New York, New - - 2014
Following the embryonic period of organogenesis, most development is allometric growth, which is thought to produce most of the evolutionary morphological divergence between related species. Bivariate or multivariate coefficients of allometry are used to describe quantitative developmental data and are comparable across taxa; as such, these coefficients are amenable to ...
Lalonde Trent L TL Department of Applied Statistics, University of Northern Colorado, Greeley, CO 80639, - - 2014
When analyzing longitudinal data, it is essential to account both for the correlation inherent from the repeated measures of the responses as well as the correlation realized on account of the feedback created between the responses at a particular time and the predictors at other times. As such one can ...
Melià P P Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, via Ponzio 34/5, 20133 Milano, - - 2014
A simple approach is proposed to fit a body growth model for the European eel Anguilla anguilla to data-poor case studies. The model is a modified von Bertalanffy curve allowing for delayed sex determination and sexual dimorphism. The proposed procedure provides preliminary estimates of model parameters on the basis of ...
Yanosky Jeff D - - 2014
Exposure to atmospheric particulate matter (PM) remains an important public health concern, although it remains difficult to quantify accurately across large geographic areas with sufficiently high spatial resolution. Recent epidemiologic analyses have demonstrated the importance of spatially- and temporally-resolved exposure estimates, which show larger PM-mediated health effects as compared to ...
Christensen Krista K National Center for Environmental Assessment, Office of Research and Development, United States Environmental Protection Agency, Washington, DC, - - 2014
The use of human biomonitoring data to characterize exposure to environmental contaminants in epidemiology studies has expanded greatly in recent years. Substantial variability in effect measures may arise when using different exposure metrics for a given contaminant, and it is often not clear which metric is the best surrogate for ...
Legg Benjamin Adam - - 2014
Aggregation impacts the reactivity, colloidal stability, and transport behavior of nanomaterials, yet methods to characterize basic structural features of aggregates are limited. Here, cryo-transmission electron microscope (Cryo-TEM) based tomography is utilized as a method for directly imaging fragile aggregates of nanoparticles in aqueous suspension and an approach for extracting quantitative ...
Booth Alastair Murray - - 2014
The growth, composition, and evolution of secondary organic aerosol (SOA) are governed by properties of individual compounds and ensemble mixtures that affect partitioning between the vapour and condensed phase. There has been considerable recent interest in the idea that SOA can form highly viscous particles where the diffusion of either ...
Baeza Guilhem P GP Université Montpellier 2, Laboratoire Charles Coulomb UMR 5221, F-34 095, Montpellier, France. - - 2014
The formation of aggregates in simplified industrial styrene-butadiene nanocomposites with silica filler has been studied using a recent model based on a combination of electron microscopy, computer simulations, and small-angle X-ray scattering. The influence of the chain mass (40 to 280 kg mol(-1), PI < 1.1), which sets the linear ...
Sergi Giuseppe G Department of Medicine - DIMED, Geriatrics Division, University of Padova, Padova, - - 2014
Aging is characterized by a loss of appendicular skeletal muscle mass (ASMM) leading to physical disability and death. Bioelectrical impedance analysis (BIA) is reliable in estimating ASMM but no prediction equations are available for elderly Caucasian subjects. The aim of the study was to develop and validate an equation derived ...
Wang Fang F Department of Environmental Engineering Sciences, University of Florida, Gainesville, FL 32611, United - - 2014
Simplified analytical solutions, developed as source strength functions (SSFs), are capable of describing the temporal dissolution of nonaqueous phase liquids in groundwater, which is useful for predicting source longevity and can serve as a guide for remedial activities. Here, SSF parameters were estimated by fitting enhanced aqueous dissolution data from ...
Yu Chao C 1] State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, China [2] Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA [3] University of the Chinese Academy of Sciences, Beijing, - - 2014
The spatial and temporal characteristics of fine particulate matter (PM2.5, particulate matter <2.5 μm in aerodynamic diameter) are increasingly being studied from satellite aerosol remote sensing data. However, cloud cover severely limits the coverage of satellite-driven PM2.5 models, and little research has been conducted on the association between cloud properties and ...
Gallardo Oscar O CSIC/UAB Proteomics Laboratory, Instituto de Investigaciones Biomédicas de Barcelona-Consejo Superior de Investigaciones Científicas, IDIBAPS, Rosellón 161, 6a planta, 08036, Barcelona, - - 2014
We present several bioinformatics applications for the identification and quantification of phosphoproteome components by mass spectrometry. These applications include a front-end graphical user interface that combines several RAW to MGF extractors (EasierMgf), two graphical user interfaces for search engines OMSSA and SEQUEST (OmssaGui and SequestGui), and three applications, one for ...
Matsumoto Masaki M Research Center for Radiation Emergency Medicine, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan - - 2014
This paper describes the Basic Radionuclide vAlue for Internal Dosimetry (BRAID) code, which was developed to calculate the time-dependent activity distribution in each organ and tissue characterised by the biokinetic compartmental models provided by the International Commission on Radiological Protection (ICRP). Translocation from one compartment to the next is taken ...
Beauchamp Guy G Faculty of Veterinary Medicine, University of Montréal, Saint-Hyacinthe, Québec, Canada J2S 7C6 - - 2014
Cooperative breeding is not common in birds but intriguingly over-represented in several families, suggesting that predisposing factors, similar ecological constraints or a combination of the two facilitate the evolution of this breeding strategy. The life-history hypothesis proposes that cooperative breeding is facilitated by high annual survival, which increases the local ...
Geng Shujuan S School of Information Science and Engineering, Shandong University, 27 Shanda Road, Jinan, 250100, People's Republic of - - 2014
The neural mass model developed by Lopes da Silva et al. simulates complex dynamics between cortical areas and is able to describe a limit cycle behavior for alpha rhythms in electroencephalography (EEG). In this work, we propose a modified neural mass model that incorporates a time delay. This time-delay model ...
Ipsen Andreas A Institute of Mass Spectrometry, College of Medicine, Swansea University, Swansea, SA2 8PP, UK, - - 2014
In a recent article, we derived a probability distribution that was shown to closely approximate that of the data produced by liquid chromatography time-of-flight mass spectrometry (LC/TOFMS) instruments employing time-to-digital converters (TDCs) as part of their detection system. The approach of formulating detailed and highly accurate mathematical models of LC/MS ...
Borg Niklas N Department of Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund, - - 2014
This study has implemented and calibrated a model that describes the separation of the monomer of monoclonal antibodies from the dimer and larger oligomers on preparative-scale using cation-exchange chromatography. A general rate model with temperature dependent diffusion was coupled to a pH- and temperature-dependent steric mass action model. The model ...
Ott David D J.F. Blumenbach Institute of Zoology and Anthropology, University of Göttingen, - - 2014
While metabolic theory predicts variance in population density within communities depending on population average body masses, the ecological stoichiometry concept relates density variation across communities to varying resource stoichiometry. Using a data set including biomass densities of 4959 populations of soil invertebrates across 48 forest sites we combined these two ...
Twedt Elyssa E Department of Psychology, University of Richmond, M03C Richmond Hall, Richmond, VA, 23173, USA, - - 2014
We examined how observers use one aspect of their own morphology, height, when judging the physical characteristics of other people. To address this, participants judged the heights of people as they walked past. We tested the hypothesis that differences between participant and target height account for systematic patterns of variability ...
van Kempen Thomas H S TH Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands. Electronic address: - - 2014
Blood clot formation is crucial to maintain normal physiological conditions but at the same time involved in many diseases. The mechanical properties of the blood clot are important for its functioning but complicated due to the many processes involved. The main structural component of the blood clot is fibrin, a ...
Nana Alisa A Sports Nutrition, Australian Institute of Sport, Canberra, ACT, - - 2014
Dual energy X-ray absorptiometry (DXA) is rapidly becoming more accessible and popular as a technique to monitor body composition, especially in athletic populations. Although studies in sedentary populations have investigated the validity of DXA assessment of body composition, few studies have examined the issues of reliability in athletic populations and ...
Armitage James Michael - - 2014
Practical, financial and ethical considerations related to conducting extensive animal testing have resulted in various initiatives to promote and expand the use of in vitro testing data for chemical evaluations. Nominal concentrations in the aqueous phase corresponding to an effect (or biological activity) are commonly reported and used to characterize ...
Dettman Joshua R - - 2014
Copper may be recovered as evidence in high profile cases such as thefts and improvised explosive device (IED) incidents; comparison of copper samples from the crime scene and associated with the subject of an investigation can provide probative associative evidence and investigative support. A solution-based inductively coupled plasma mass spectrometry ...
Handoh Itsuki C IC Center for Research Development, Research Institute for Humanity and Nature, 457-4 Motoyama, Kamigamo, Kita-ku, Kyoto 603-8047, Japan. Electronic address: - - 2014
Marine mammals in the past mass mortality events may have been susceptible to infection because their immune systems were suppressed through the bioaccumulation of environmental pollutants such as polychlorinated biphenyls (PCBs). We compiled mortality event data sets of 33 marine mammal species, and employed a Finely-Advanced Transboundary Environmental model (FATE) ...
Boudon Stéphanie Marie SM Novartis Institutes for BioMedical Research, Preclinical Safety, 4002, Basel, - - 2014
Mass spectrometry imaging (MSI) was applied to samples from mouse skin and from a human in vitro 3D skin model in order to assess its suitability in the context of photosafety evaluation. MSI proved to be a suitable method for the detection of the model compound sparfloxacin in biological tissues ...
Stevens Jeffrey R JR Department of Psychology, Center for Brain, Biology, and Behavior, University of Nebraska-Lincoln, Lincoln, NE 68588-0156, USA - - 2014
From finding food to choosing mates, animals must make intertemporal choices that involve fitness benefits available at different times. Species vary dramatically in their willingness to wait for delayed rewards. Why does this variation across species exist? An adaptive approach to intertemporal choice suggests that time preferences should reflect the ...
Jathar Shantanu H SH Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA 15213; - - 2014
Secondary organic aerosol (SOA) formed from the atmospheric oxidation of nonmethane organic gases (NMOG) is a major contributor to atmospheric aerosol mass. Emissions and smog chamber experiments were performed to investigate SOA formation from gasoline vehicles, diesel vehicles, and biomass burning. About 10-20% of NMOG emissions from these major combustion ...
Luo Hui H Dipartimento di Fisica ed Astronomia, Università di Padova, Via Marzolo 8, 35131 Padova, Italy and INFN, Sezione di Padova, Via Marzolo 8, 35131 Padova, Italy and SISSA, Via Bonomea 265, 34136 Trieste, - - 2014
We introduce a N=1 supergravity model with a very simple hidden sector coupled to the electroweak gauge and Higgs sectors of the minimal supersymmetric standard model. At the classical level, supersymmetry and SU(2)×U(1) are both spontaneously broken, with vanishing vacuum energy. Two real flat directions control the two symmetry-breaking scales ...
Pryce Robert R Department of Kinesiology and Applied Health, University of Winnipeg, Canada. Electronic address: - - 2014
There is a paucity of information regarding the impact of central adiposity on the inertial characteristics of body segments. Deriving low back loads during lifting requires accurate estimate of inertial parameters. The purpose was to determine the body segment inertial parameters of people with central adiposity using a photogrammetric technique, ...
Gasperi Johnny J Université Paris-Est, LEESU, UMR MA 102-AgroParisTech, 61 Avenue du Général de Gaulle, 94010 Créteil Cedex, France. Electronic address: - - 2014
The objective of this study was to examine the occurrence of parabens (5 congeners), triclosan (TCS) and triclocarban (TCC) at the scale of the Parisian sewer network and to provide representative knowledge on these compounds in France for a large area. For this purpose and in collaboration with the Parisian ...
Wen Chi-Chung CC Department of Mathematics, Tamkang University, New Taipei , 25137, Taiwan, - - 2014
Covariate measurement error problems have been recently studied for current status failure time data but not yet for multivariate current status data. Motivated by the three-hypers dataset from a health survey study, where the failure times for three-hypers (hyperglycemia, hypertension, hyperlipidemia) are subject to current status censoring and the covariate ...
Moresi Mark P MP a School of Exercise Science , Australian Catholic University , Strathfield , - - 2014
Abstract Double-leg repeated jumping tasks are commonly used as measures of lower limb stiffness in exercise science research. Within similar stiffness calculations, variation in data-reduction criteria exists. The impact of these varied data-reduction methods on stiffness measures is unknown. Sixteen adolescent female participants from varied physical activity backgrounds performed 15 ...
Bouwhuis Sandra S Edward Grey Institute, Department of Zoology, University of Oxford, South Parks Road, Oxford, OX1 3PS, UK; Institute of Avian Research, An der Vogelwarte 21, 26386, Wilhelmshaven, - - 2014
Estimates of selection in natural populations are frequent but our understanding of ecological causes of selection, and causes of variation in the direction, strength and form of selection, is limited. Here, we apply a multi-level framework to partition effects of great tit fledging mass on first-year survival to hierarchical levels ...
Barbosa T M TM National Institute of Education, Nanyang Technological University, Singapore, Singapore; Research Centre in Sports, Health and Human Development, Vila Real, - - 2014
The aim of this study was to analyze the changes in the hydrodynamic profile of young swimmers over a competitive season and to compare the variations according to a well-designed training periodization. Twenty-five swimmers (13 boys and 12 girls) were evaluated in (a) October (M1); (b) March (M2); and (c) ...
Rauk Adam P AP inVentiv Health Clinical, Princeton, NJ, - - 2014
Defining a suitable product presentation with an acceptable stability profile over its intended shelf-life is one of the principal challenges in bioproduct development. Accelerated stability studies are routinely used as a tool to better understand long-term stability. Data analysis often employs an overall mass action kinetics description for the degradation ...
Gardner Rick M RM Department of Psychology, University of Colorado Denver, Denver, Colorado, USA. Electronic address: - - 2014
Body size overestimation is a fundamental feature in anorexia nervosa (AN). The extent or even existence of body size overestimation in AN is controversial. The most recent review (Farrell et al., 2005) found that only half the studies reported overestimation of body size in individuals diagnosed with AN. The remaining ...
García-Parra Patricia P Department of Legal Medicine, Toxicology and Physical Anthropology, Faculty of Medicine, University of Granada, Avda de Madrid, Granada, n°11, C.P 18012, Spain. Electronic address: - - 2014
Sex estimation is one of the first steps in forensic anthropology to identify human remains. In absence of the skull or the pelvis, any skeletal remain becomes fundamental for identification, especially in mass-disaster cases. The sternum is a potentially useful element in anthropological analysis with a high recovery rate in ...
1 2 3 4 5 6 7 8 9 10 >