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Conger Scott A SA Department of Kinesiology, Recreation, and Sport Studies, University of Tennessee, Knoxville, Tennessee, - - 2014
To examine the relationship between hand rim propulsion power and energy expenditure (EE) during wheelchair wheeling and to investigate whether adding other variables to the model could improve on the prediction of EE. Individuals who use manual wheelchairs (n=14) performed five different wheeling activities in a wheelchair with a PowerTap ...
Knutson Brian B Department of Psychology, Stanford University, Stanford, CA 94305, USA. Electronic address: - - 2014
Neuroimaging findings are often interpreted in terms of affective experience, but researchers disagree about the advisability or even possibility of such inferences, and few frameworks explicitly link these levels of analysis. Here, we suggest that the spatial and temporal resolution of functional magnetic resonance imaging (fMRI) data could support inferences ...
Zhang Kai K Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas School of Public Health, Houston, TX 77030, USA. Electronic address: - - 2014
Hot weather increases risk of mortality. Previous studies used different sets of weather variables to characterize heat stress, resulting in variation in heat-mortality associations depending on the metric used. We employed a statistical learning method - random forests - to examine which of the various weather variables had the greatest ...
Barbosa Heloisa H Universidade Federal de Minas Gerais, Belo Horizonte, - - 2014
This paper presents a modeling effort for developing safety performance models (SPM) for urban intersections for three major Brazilian cities. The proposed methodology for calibrating SPM has been divided into the following steps: defining the safety study objective, choosing predictive variables and sample size, data acquisition, defining model expression and ...
Linares Oscar A - - 2014
ABSTRACT The absorption pattern of orally administered OxyContin (OXC) reflected in urine indicates that its appearance into systemic circulation undergoes transit absorption delays. The authors developed an OXC transit-delay compartment model that identified a new source of oxycodone hydrochloride (OC): the rate of appearance of OC due to OXC tablet ...
Wang Lunche L State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, Hubei Province, 430079, China, - - 2014
Photosynthetically active radiation (PAR) observed at Fukang, China from 2005 to 2012 was used to investigate PAR variability and its relationship with global solar radiation (G) under various sky conditions in Northwest China. Clearness index (K t) was used for characterizing the sky conditions and model development; it was discovered ...
Cane James J School of Psychology, Keynes College, University of Kent, Canterbury, - - 2014
Behaviour change technique (BCT) Taxonomy v1 is a hierarchically grouped, consensus-based taxonomy of 93 BCTs for reporting intervention content. To enhance the use and understanding of BCTs, the aims of the present study were to (1) quantitatively examine the 'bottom-up' hierarchical structure of Taxonomy v1, (2) identify whether BCTs can ...
Kapur Kush K Clinical Research Center and Department of Neurology, Boston Children's Hospital, Harvard Medical School, 21 Autumn St., Boston, MA 02215, - - 2014
In this article, we develop appropriate statistical methods for determining the required sample size while comparing the efficacy of an intervention to a control with repeated binary response outcomes. Our proposed methodology incorporates the complexity of the hierarchical nature of underlying designs and provides solutions when varying attrition rates are ...
Burchard-Levine Alejandra A Tsinghua University - Veolia Environnement Joint Research Center for Advanced Environmental Technology, School of Environment, Tsinghua University, Beijing, China. Electronic address: - - 2014
China's fast pace industrialization and growing population has led to several accidental surface water pollution events in the last decades. The government of China, after the 2005 Songhua River incident, has pushed for the development of early warning systems (EWS) for drinking water source protection. However, there are still many ...
Curtis A T AT Dept. of Medical Biophysics, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario Canada; Robarts Research Institute, The University of Western Ontario, 100 Perth Drive London, Ontario Canada N6A 5K8. Electronic address: - - 2014
A data-driven regressor selection technique for reducing physiological noise in BOLD fMRI is presented that capitalizes on additional information contained in the phase of the signal time-course. This method, termed highcor, identifies a set of suspect voxels by selecting based on high temporal correlation between the magnitude and phase components ...
Taylor Michelle L ML Centre for Ecology and Conservation, University of Exeter, Penryn Campus, Treliever Road, Penryn, TR10 9FE, - - 2014
A popular notion in sexual selection is that females are polyandrous and their offspring are commonly sired by more than a single male. We now have large-scale evidence from natural populations to be able to verify this assumption. Although we concur that polyandry is a generally common and ubiquitous phenomenon, ...
Faes Luca - - 2014
In the study of interacting physiological systems, model-free tools for time series analysis are fundamental to provide a proper description of how the coupling among systems arises from the multiple involved regulatory mechanisms. This study presents an approach which evaluates direction, magnitude and exact timing of the information transfer between ...
Sven Shafizadeh S Department of Trauma and Orthopaedic Surgery, Cologne Merheim Medical Centre, Witten/Herdecke University, Ostmerheimer Strasse 200, 51109, Cologne, Germany, - - 2014
Intraoperative fluoroscopy has been proposed as a feasible method to improve the accuracy of anatomical tunnel positioning. However, it has so far not been determined, whether this technique reduces the variability of tunnel positioning in a clinical set-up. Therefore, the purpose of this study was to determine the variability of ...
Chave Jérôme J CNRS & Université Paul Sabatier, UMR 5174 Laboratoire Evolution et Diversité Biologique, 31062, Toulouse, - - 2014
Terrestrial carbon stock mapping is important for the successful implementation of climate change mitigation policies. Its accuracy depends on the availability of reliable allometric models to infer oven-dry aboveground biomass of trees from census data. The degree of uncertainty associated with previously published pantropical aboveground biomass allometries is large. We ...
Silva Déborah R O DR Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, CP 486, CEP 30161-970, Belo Horizonte, Minas Gerais, Brazil, - - 2014
Mesohabitat components such as substrate and surface flow types are intimately related to benthic macroinvertebrate assemblages in streams. Visual assessments of the distribution of these components provide a means of evaluating physical habitat heterogeneity and aid biodiversity surveys and monitoring. We determined the degree to which stream site and visually ...
Cozzolino D D School of Agriculture, Food and Wine, Faculty of Sciences, The University of Adelaide, Waite Campus, PMB 1 Glen Osmond, SA 5064, Adelaide, - - 2014
Vibrational spectroscopy encompasses a number of techniques and methods including UV, visible (VIS), Fourier transform infrared or mid infrared (FTIR or FTMIR), near infrared (NIR) and Raman spectroscopy. The use and application of spectroscopy generates spectra containing hundreds of variables (absorbances at each wavenumbers or wavelengths), resulting in the production ...
Laurin Michel M Sorbonne Universités, CR2P, CNRS/MNHN/UPMC, Muséum National d'Histoire Naturelle, Paris, - - 2014
The potential presence of developmental modules is studied in the urodele skull using several classical statistical methods that have not previously been used in this context. Principal component analysis (PCA) of ossification sequence data on 21 bones in 21 extant urodele species suggests the presence of up to four developmental ...
Ciaccio Edward J - - 2014
Real-time spectral analyzers can be difficult to implement for PC computer-based systems because of the potential for high computational cost, and algorithm complexity. In this work a new spectral estimator (NSE) is developed for real-time analysis, and compared with the discrete Fourier transform (DFT). Clinical data in the form of ...
Vasdekis Vassilis G S VG Department of Statistics, Athens University of Economics and Business, 76 Patission Street, 10434, Athens, - - 2014
Models with random effects/latent variables are widely used for capturing unobserved heterogeneity in multilevel/hierarchical data and account for associations in multivariate data. The estimation of those models becomes cumbersome as the number of latent variables increases due to high-dimensional integrations involved. Composite likelihood is a pseudo-likelihood that combines lower-order marginal ...
Kouskoura Maria G MG Laboratory of Pharmaceutical Analysis, Department of Pharmaceutical Technology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124, Thessaloniki, - - 2014
Partial least squares and quantitative structure retention relationship models have been used mainly to explain and then to predict the retention mechanism on a cyanopropyl high-performance liquid chromatography column. Developing and applying the models involves studying the chromatographic behaviour of 100 probes. Characterization of the probes took place under optimized ...
Yamins Daniel L K DL Department of Brain and Cognitive Sciences and McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA - - 2014
The ventral visual stream underlies key human visual object recognition abilities. However, neural encoding in the higher areas of the ventral stream remains poorly understood. Here, we describe a modeling approach that yields a quantitatively accurate model of inferior temporal (IT) cortex, the highest ventral cortical area. Using high-throughput computational ...
Shults Justine J Department of Biostatistics and Epidemiology, University of Pennsylvania School of Medicine, Philadelphia, PA, - - 2014
This note implements an unstructured decaying product matrix via the quasi-least squares approach for estimation of the correlation parameters in the framework of generalized estimating equations. The structure we consider is fairly general without requiring the large number of parameters that are involved in a fully unstructured matrix. It is ...
Mooney Stephen J SJ From the Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, - - 2014
Multilevel studies of neighborhood effects on health frequently aggregate individual-level data to create contextual measures. For example, percent of residents living in poverty and median household income are both aggregations of Census data on individual-level household income. Because household income is sensitive and complex, it is likely to be reported ...
Nethery Elizabeth - - 2014
Personal exposure studies of air pollution generally use self-reported diaries to capture individuals' time-activity data. Enhancements in the accuracy, size, memory and battery life of personal Global Positioning Systems (GPS) units have allowed for higher resolution tracking of study participants' locations. Improved time-activity classifications combined with personal continuous air pollution ...
Lau Nathan N a Department of Systems and Information Engineering , University of Virginia , Charlottesville , VA , - - 2014
Query- or probe-based situation awareness (SA) measures sometimes rely on process experts to evaluate operator actions and system states when used in representative settings. This introduces variability of human judgement into the measurements that require inter-rater reliability assessment. However, the literature neglects inter-rater reliability of query/probe-based SA measures. We recruited ...
Bruna Maria M Mathematical Institute, University of Oxford, Oxford OX2 6GG, United - - 2014
The quasi-steady-state approximation (or stochastic averaging principle) is a useful tool in the study of multiscale stochastic systems, giving a practical method by which to reduce the number of degrees of freedom in a model. The method is extended here to slow-fast systems in which the fast variables exhibit metastable ...
Durnez Joke J Department of Data Analysis, Ghent University, H. Dunantlaan 1, 9000, Ghent, - - 2014
Functional Magnetic Resonance Imaging is a widespread technique in cognitive psychology that allows visualizing brain activation. The data analysis encompasses an enormous number of simultaneous statistical tests. Procedures that either control the familywise error rate or the false discovery rate have been applied to these data. These methods are mostly ...
Chisholm Ryan A RA Smithsonian Tropical Research Institute, P.O. Box 0843-03092, Balboa, Ancón, Republic of Panamá; Department of Biological Sciences, Faculty of Science, National University of Singapore, 14 Science Drive 4, Singapore, 117543, - - 2014
Long-term surveys of entire communities of species are needed to measure fluctuations in natural populations and elucidate the mechanisms driving population dynamics and community assembly. We analysed changes in abundance of over 4000 tree species in 12 forests across the world over periods of 6-28 years. Abundance fluctuations in all forests ...
Merello Paloma P Department of Applied Physics (UD Industrial Engineering), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain; Valencian Institute for Conservation and Restoration of Cultural Heritage (IVC+R), C/Genaro Lahuerta 25-3°, 46010 Valencia, Spain. Electronic address: - - 2014
Chemometrics has been applied successfully since the 1990s for the multivariate statistical control of industrial processes. A new area of interest for these tools is the microclimatic monitoring of cultural heritage. Sensors record climatic parameters over time and statistical data analysis is performed to obtain valuable information for preventive conservation. ...
He Xiaoming X Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, - - 2014
There is an imperative need to develop methods that can rapidly and accurately determine individual exposure to radiation for screening (triage) populations and guiding medical treatment in an emergency response to a large-scale radiological/nuclear event. To this end, a number of methods that rely on dose-dependent chemical and/or physical alterations ...
Hu Yunfeng Y State Key Laboratory of Automobile Simulation and Control, Jilin University, Changchun, PR China; Department of Control Science and Engineering, Jilin University (Campus NanLing), Changchun, PR - - 2014
In this paper, a model-based nonlinear gearshift controller is designed by the backstepping method to improve the shift quality of vehicles with a dual-clutch transmission (DCT). Considering easy-implementation, the controller is rearranged into a concise structure which contains a feedforward control and a feedback control. Then, robustness of the closed-loop ...
Dhossche Dirk M DM From the Department of Psychiatry, University of Mississippi Medical Center, Jackson, - - 2014
Catatonia is currently viewed as a unique syndrome that consists of specific motor signs responding to benzodiazepines and electroconvulsive therapy (ECT). Advances in catatonia may provide a new window into the mechanism of ECT. Findings on catatonia are updated and related to the mechanism of ECT. Selective literature review. There ...
Kaplan David A DA Department of Environmental Engineering Sciences, University of Florida, PO Box 116350, Gainesville, FL 32611, USA. Electronic address: - - 2014
Coastal wetlands occupy a delicate position at the intersection of fresh and saline waters. Changing climate and watershed hydrology can lead to saltwater intrusion into historically freshwater systems, causing plant mortality and loss of freshwater habitat. Understanding the hydrological functioning of tidally influenced floodplain forests is essential for advancing ecosystem ...
Lundgren-Nilsson Asa A Centre for Person-centred Care, Institute of Health and Care Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden; Department of Clinical Neuroscience and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Gothenburg, - - 2014
Fatigue is a common and distressing symptom in cancer patients due to both the disease and its treatments. The concept of fatigue is multidimensional and includes both physical and mental components. The 22-item Revised Piper Fatigue Scale (RPFS) is a multidimensional instrument developed to assess cancer-related fatigue. This study reports ...
Qi Shuai S School of Food and Biological Engineering, Jiangsu University, Xuefu Road 301, Zhenjiang 212013, Jiangsu, PR - - 2014
A portable and low-cost optical sensors system consisting of hardware and software was developed and used for real-time monitoring total polyphenols content in tea in this work. This developed system was used for data acquisition. Partial least square (PLS) with several variable selection algorithms was used for modeling. Synergy interval ...
Suenderhauf Claudia C Pharmaceutical Sciences, Pharma Research and Early Development, F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, 4070, Basel, Switzerland, - - 2014
Onset and rate of gastric emptying are important determinants of drug absorption after oral dosing. Therefore, robust estimates of these parameters are needed in physiologically based absorption models to predict reliably plasma concentration time profiles. For human and some other laboratory animals, reasonable parameterization of gastric emptying has been established. ...
de Moraes Augusto César - - 2014
Resting heart rate reflects sympathetic nerve activity. A significant association between resting heart rate (HR) and all causes of cardiovascular mortality has been reported by some epidemiologic studies. Despite suggestive evidence, resting heart rate (RHR) has not been formally explored as a prognostic factor and potential therapeutic outcome and, therefore, ...
Sentürk Damla D Department of Biostatistics, University of California, Los Angeles, CA, - - 2014
Motivated by a longitudinal study on factors affecting the frequency of clinic visits of older adults, an exploratory time varying lagged regression analysis is proposed to relate a longitudinal response to multiple cross-sectional and longitudinal predictors from time varying lags. Regression relations are allowed to vary with time through smooth ...
Robbins Blaine B Department of Sociology, University of Washington, 211 Savery Hall, Box 353340, Seattle, WA 98195-3340, United States. Electronic address: - - 2014
Although the social exchange paradigm has produced a vibrant research program, the theoretical tradition is rarely used to model the structure of social networks outside of experiments and simulations. To address this limitation, we derive power-dependence predictions about network structure and geographic mobility-the outcomes of power-use-and test these predictions using ...
Fallahi Firouz F Department of Economics, University of Tabriz, Tabriz, Iran. Electronic address: - - 2014
This study has two goals. The first is to use Markov Switching models to identify and analyze the cycles in the unemployment rate and four different types of property-related criminal activities in the US. The second is to apply the nonparametric concordance index of Harding and Pagan (2006) to determine ...
Yeh Yi-Ren - - 2014
We present a novel domain adaptation approach for solving cross-domain pattern recognition problems, i.e., the data or features to be processed and recognized are collected from different domains of interest. Inspired by canonical correlation analysis (CCA), we utilize the derived correlation subspace as a joint representation for associating data across ...
Chen Chao - - 2014
Newly developed hypertext transfer protocol (HTTP)-based video streaming technologies enable flexible rate-adaptation under varying channel conditions. Accurately predicting the users' quality of experience (QoE) for rate-adaptive HTTP video streams is thus critical to achieve efficiency. An important aspect of understanding and modeling QoE is predicting the up-to-the-moment subjective quality of ...
Babadi Behtash - - 2014
Nonparametric spectral estimation is a widely used technique in many applications ranging from radar and seismic data analysis to electroencephalography (EEG) and speech processing. Among the techniques that are used to estimate the spectral representation of a system based on finite observations, multitaper spectral estimation has many important optimality properties, ...
Bradley Paul Simon PS a Department of Sports & Exercise Sciences , University of Sunderland , Sunderland , SR1 3SD , - - 2014
Abstract The aims of this study were twofold: (1) to examine the influence of situational variables on ball possession in elite soccer and (2) to quantify the variables that discriminate between high or low percentage ball possession teams (HPBPT and LPBPT) across different playing positions. Match performance data were collected ...
Dunn John C JC School of Psychology, University of Adelaide, North Terrace, Adelaide, 5005, Australia, - - 2014
Ashby (2014) has argued that state-trace analysis (STA) is not an appropriate tool for assessing the number of cognitive systems, because it fails in its primary goal of distinguishing single-parameter and multiple-parameter models. We show that this is based on a misunderstanding of the logic of STA, which depends solely ...
Gori Franco - - 2014
We present a number of results relating to the difference of two Gaussian Schell-model cross-spectral densities (CSDs). They allow us to specify conditions under which such a difference represents itself in a valid CSD. In particular, a sufficient condition is derived for the non-negative definiteness of the resulting CSD, for ...
Degras David D Department of Mathematical Sciences, DePaul University,cxu - - 2014
In this paper we introduce a new hierarchical model for the simultaneous detection of brain activation and estimation of the shape of the hemodynamic response in multi-subject fMRI studies. The proposed approach circumvents a major stumbling block in standard multi-subject fMRI data analysis, in that it both allows the shape ...
Katapally Tarun R TR Department of Community Health and Epidemiology, College of Medicine, Health Science Building , 107 Wiggins Road , University of Saskatchewan, Saskatoon , Saskatchewan, Canada S7N 5E5 - - 2014
Accelerometers are predominantly used to objectively measure the entire range of activity intensities - sedentary behaviour (SED), light physical activity (LPA) and moderate to vigorous physical activity (MVPA). However, studies consistently report results without accounting for systematic accelerometer wear-time variation (within and between participants), jeopardizing the validity of these results. ...
Ferdowsi Hasan - - 2014
Measured data or states for a nonlinear dynamic system is usually contaminated by outliers. Identifying and removing outliers will make the data (or system states) more trustworthy and reliable since outliers in the measured data (or states) can cause missed or false alarms during fault diagnosis. In addition, faults can ...
Jing Yaqi Y Tianjin Key Laboratory of Process Measurement and Control, Institute of Robotics and Autonomous Systems, School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, - - 2014
An electronic nose (e-nose) was designed to classify Chinese liquors of the same aroma style. A new method of feature reduction which combined feature selection with feature extraction was proposed. Feature selection method used 8 feature-selection algorithms based on information theory and reduced the dimension of the feature space to ...
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