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Maus Horst-Moritz HM Lauflabor Locomotion Laboratory, Institute for Sport Science, Technical University Darmstadt, Magdalenenstr. 27, 64289 Darmstadt, Germany - - 2014
Blindfolded or disoriented people have the tendency to walk in circles rather than on a straight line even if they wanted to. Here, we use a minimalistic walking model to examine this phenomenon. The bipedal spring-loaded inverted pendulum exhibits asymptotically stable gaits with centre of mass (CoM) dynamics and ground ...
Till John E JE *Risk Assessment Corporation, 417 Till Road, Neeses, SC 29107; †K-Spar Inc., 4835 W Foxtrail Lane, Idaho Falls, ID 83402; ‡U.S. Department of Energy, Germantown, - - 2014
The suitability of a new facility in terms of potential impacts from routine and accidental releases is typically evaluated using conservative models and assumptions to assure dose standards are not exceeded. However, overly conservative dose estimates that exceed target doses can result in unnecessary and costly facility design changes. This ...
Kreyssig Peter P Bio Systems Analysis Group, Department of Mathematics and Computer Science and Jena Centre for Bioinformatics, Friedrich Schiller University Jena, 07743 Jena, Germany, Mathematics Department, University of British Columbia, Kelowna, BC V1V 1V7, Canada, Instituto de Filosofía y Ciencias de la Complejidad - IFICC, Los Alerces 3024 Ñuñoa, Santiago, Chile, Center Leo Apostel, Vrije Universiteit Brussel, B-1160 Brussels, Belgium, Umm Al-Qura University, 1109 Makkah Al-Mukarramah and Al-Qunfudah Center for Scientific Research (QCSR), 21912 Al-Qunfudah, Kingdom of Saudi - - 2014
The functioning of many biological processes depends on the appearance of only a small number of a single molecular species. Additionally, the observation of molecular crowding leads to the insight that even a high number of copies of species do not guarantee their interaction. How single particles contribute to stabilizing ...
Lobo Daniel D Center for Regenerative and Developmental Biology, and Department of Biology Tufts University, 200 Boston Avenue, Suite 4600, Medford, MA 02155, - - 2014
The ability of certain organisms to completely regenerate lost limbs is a fascinating problem, far from solved. Despite the extraordinary published efforts during the last centuries of scientists performing amputations, transplantations, and molecular experiments, no mechanistic model exists yet that can completely explain patterning during the limb regeneration process. The ...
Hessel R R Soil Physics and Land Use team, Alterra, Wageningen UR, P.O. Box 47, 6700 AA, Wageningen, The Netherlands, - - 2014
It has become increasingly clear that desertification can only be tackled through a multi-disciplinary approach that not only involves scientists but also stakeholders. In the DESIRE project such an approach was taken. As a first step, a conceptual framework was developed in which the factors and processes that may lead ...
Hendrickson Erik L EL Department of Chemical Engineering and Center for Microbial Proteomics, University of Washington, Box 355014, Seattle, Washington, - - 2014
Fusobacterium nucleatum is a common oral organism that can provide adhesive and metabolic support to developing periodontal bacterial communities. It is within the context of these communities that disease occurs. We have previously reported whole cell proteomics analyses of Porphyromonas gingivalis and Streptococcus gordonii in early-stage communities with each other ...
Hafemeister Christoph C Department of Biology, Center for Genomics & Systems Biology, New York University, New York, NY, USA christoph.hafemeister@nyu.edu - - 2014
Experiments in animal models are often conducted to infer how humans will respond to stimuli by assuming that the same biological pathways will be affected in both organisms. The limitations of this assumption were tested in the IMPROVER Species Translation Challenge, where 52 stimuli were applied to both human and ...
Beer Randall D RD Indiana - - 2014
Abstract Maturana and Varela's concept of autopoiesis defines the essential organization of living systems and serves as a foundation for their biology of cognition and the enactive approach to cognitive science. As an initial step toward a more formal analysis of autopoiesis, this article investigates its application to the compact, ...
Martinez N E NE Department of Environmental Engineering and Earth Sciences, Clemson University, 342 Computer Ct, Anderson, SC 29625, USA. Electronic address: - - 2014
This study develops and compares different, increasingly detailed anatomical phantoms for rainbow trout (Oncorhynchus mykiss) for the purpose of estimating organ absorbed radiation dose and dose rates from (131)I uptake in multiple organs. The models considered are: a simplistic geometry considering a single organ, a more specific geometry employing additional ...
Negroni Jacopo J Joint IRB-BSC-CRG Program in Computational Biology, Institute for Research in Biomedicine (IRB Barcelona), c/ Baldiri Reixac 10-12, 08028 Barcelona, - - 2014
The structural modeling of protein interactions in the absence of close homologous templates is a challenging task. Recently, template-based docking methods have emerged to exploit local structural similarities to help ab-initio protocols provide reliable 3D models for protein interactions. In this work, we critically assess the performance of template-based docking in ...
Chen Alex Y AY Dart Neuroscience LLC, San Diego, California, United States of America; Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, United States of America; Graduate Program in Neuroscience, SUNY Stony Brook, Stony Brook, New York, United States of - - 2014
Parkinson's disease (PD) is a movement neurodegenerative disorder, characterized by bradykinesia, rigidity and tremor, constituting difficulties in walking and abnormal gait. Previous research shows that Drosophila expressing human α-synuclein A30P (A30P) develop deficits in geotaxis climbing; however, geotaxis climbing is a different movement modality from walking. Whether A30P flies would ...
Stewart Neil J NJ Academic Unit of Radiology, University of Sheffield, Royal Hallamshire Hospital, Sheffield, United - - 2014
To assess the sensitivity of the hyperpolarized (129) Xe chemical shift saturation recovery (CSSR) technique for noninvasive quantification of changes to lung microstructure and function in idiopathic pulmonary fibrosis (IPF) and systemic sclerosis (SSc). Ten healthy volunteers, four subjects with SSc and four with IPF were scanned at 1.5 T. ...
Sinclair Stephen - - 2014
With real-time models of friction that take velocity as input, accuracy depends in great part on adequately estimating velocity from position measurements. This process can be sensitive to noise, especially at high sampling rates. In audio-haptic acoustic simulations, often characterized by friction-induced, relaxation-type stick-slip oscillations, this gives a gritty, dry ...
Fernandez-Fontaina E E Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain. Electronic address: - - 2014
Cometabolism is the ability of microorganisms to degrade non-growth substrates in the presence of primary substrates, being the main removal mechanism behind the biotransformation of organic micropollutants in wastewater treatment plants. In this paper, a cometabolic Monod-type kinetics, linking biotransformation of micropollutants with primary substrate degradation, was applied to a ...
Magistrale Giuseppe G Neurology and NeuroRehabilitation Unit, Fondazione IRCCS Santa Lucia, - - 2014
The World Health Organization Disability Assessment Schedule (WHODAS-II) is a widely used generic assessment instrument for health and disability. However, a specific psychometric evaluation for this scale in multiple sclerosis (MS) is lacking. This study is aimed at the assessment of the psychometric properties of the WHODAS-II in MS with ...
Linge Svein O SO Telemark University College, - - 2014
Object The effect of craniovertebral decompression surgery on CSF flow dynamics in patients with Chiari malformation Type I (CM-I) has been incompletely characterized. The authors used computational fluid dynamics to calculate the effect of decompression surgery on CSF flow dynamics in the posterior fossa and upper cervical spinal canal. Methods ...
Tsukune Mariko M Graduate School of Creative Science/Institute of Advanced Active Aging Research, Waseda University, Tokyo, Japan, - - 2014
Accurate, noninvasive methods are sought for breast tumor detection and diagnosis. In particular, a need for noninvasive techniques that measure both the nonlinear elastic and viscoelastic properties of breast tissue has been identified. For diagnostic purposes, it is important to select a nonlinear viscoelastic model with a small number of ...
Mateo-Ortiz Daniel D Department of Chemical Engineering, University of Puerto Rico at Mayaguez, Puerto - - 2014
New analytical methods are needed to understand and optimize the processes by which tablets are produced. Fette 3090 tablet presses are commonly used in the pharmaceutical industry. A near-infrared (NIR) probe was installed into a Fette 3090 feed frame to understand and monitor the die filling process. The second objective ...
Abergel Daniel D Ecole Normale Supérieure, Departement de Chimie, UMR 7203 CNRS-UPMC-ENS, 24, rue Lhomond, 75005 Paris, France. Electronic address: - - 2014
The analysis of NMR relaxation data is revisited along the lines of a Bayesian approach. Using a Markov Chain Monte Carlo strategy of data fitting, we investigate conditions under which relaxation data can be effectively interpreted in terms of internal dynamics. The limitations to the extraction of kinetic parameters that ...
Shadden Shawn C SC Department of Mechanical Engineering, University of California, 5126 Etcheverry Hall, Berkeley, CA , 94720-1740, USA, - - 2014
Recent advances in imaging, modeling, and computing have rapidly expanded our capabilities to model hemodynamics in the large vessels (heart, arteries, and veins). This data encodes a wealth of information that is often under-utilized. Modeling (and measuring) blood flow in the large vessels typically amounts to solving for the time-varying ...
Villeneuve Emma - - 2014
Hyperspectral imaging has been an area of active research in image processing and analysis for more than ten years, mainly for remote sensing applications. Astronomical ground-based hyperspectral imagers offer new challenges to the community, which differ from the previous ones in the nature of the observed objects, but also in ...
Yu Hao-Ran HR Department of Astronomy, Beijing Normal University, Beijing 100875, China and Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, - - 2014
So far there is only indirect evidence that the Universe is undergoing an accelerated expansion. The evidence for cosmic acceleration is based on the observation of different objects at different distances and requires invoking the Copernican cosmological principle and Einstein's equations of motion. We examine the direct observability using recession ...
Mitchell Jonathan S JS Committee on Evolutionary Biology, The University of Chicago, Chicago, IL 60637, USA Department of Science and Education, The Field Museum of Natural History, Chicago, IL 60615, USA - - 2014
Ecological divergence is thought to be coupled with evolutionary radiations, yet the strength of this coupling is unclear. When birds diversified ecologically has received much less attention than their hotly debated crown divergence time. Here, we quantify how accurately skeletal morphology can predict ecology in living and extinct birds, and ...
Tugnoli Alessandro A LISES - Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Alma Mater Studiorum - Università di Bologna, via Terracini n.28, 40131 Bologna - - 2014
The evaluation of the initial direction and velocity of the fragments generated in the fragmentation of a vessel due to internal pressure is an important information in the assessment of damage caused by fragments, in particular within the quantitative risk assessment (QRA) of chemical and process plants. In the present ...
Kim Changwoo C Center for Water Resource Cycle, Green City Technology Institute, Korea Institute of Science and Technology, Seoul 136-791, Republic of - - 2014
Previously identified relationships between the attachment efficiency (α) and seepage velocity (US) of nanoparticles (NPs) were tested under simulated subsurface transport conditions, where the value of US is typically much less than the US on which they are based. This found an increase in the α value of TiO2 NPs ...
Thomson D J DJ Department of Mathematics and Statistics , Queen's University, Jeffery Hall , University Avenue, Kingston, Ontario, K7L 3N6 , - - 2014
In this paper, expressions are derived for the expected number of spurious peaks in a spectrum estimate, that is, crossings above a given significance level per frequency unit, as well as the expected width of these peaks. In numerous scientific applications, spectrum estimates are used for the purpose of identifying ...
Peel A J AJ Disease Dynamics Unit, Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, UK Institute of Zoology, Zoological Society of London, Regent's Park, London NW1 4RY, UK Environmental Futures Research Institute, Griffith University, Brisbane, 4111, Australia - - 2014
The notion of a critical community size (CCS), or population size that is likely to result in long-term persistence of a communicable disease, has been developed based on the empirical observations of acute immunizing infections in human populations, and extended for use in wildlife populations. Seasonal birth pulses are frequently ...
Pagès Guilhem G Singapore Bioimaging Consortium, A*STAR, Singapore, - - 2014
To introduce a direct method for estimating relaxation and kinetic parameter values from rapid dissolution dynamic nuclear polarization (RD-DNP) NMR time courses. The analysis relied on a kinetic model that is often used to analyze data in these studies-a unidirectional (bio)chemical reaction with rate constant k1 , coupled to longitudinal ...
Mangine Gerald T GT Institute of Exercise Physiology and Wellness, Sport and Exercise Science, University of Central Florida, Orlando, - - 2014
Mangine, GT, Hoffman, JR, Gonzalez, AM, Wells, AJ, Townsend, JR, Jajtner, AR, McCormack, WP, Robinson, EH, Fragala, MS, Fukuda, DH, and Stout, JR. Speed, force, and power values produced from nonmotorized treadmill test are related to sprinting performance. J Strength Cond Res 28(7): 1812-1819, 2014-The relationships between 30-m sprint time ...
Boyraz Güler G Department of Psychology and Behavioral Sciences, Louisiana Tech - - 2014
The purpose of the present study was to examine the reciprocal relationships between authenticity and measures of life satisfaction and distress using a 2-wave panel study design. Data were collected from 232 college students attending 2 public universities. Structural equation modeling was used to analyze the data. The results of ...
Liu Guodong G Institute of Polymer Science and Engineering, Hebei University of Technology, 300130, Tianjin, China, - - 2014
In this paper the enthalpy relaxation of polystyrene (PS) was restudied using a structure-dependent Kohlrausch stretch exponent β with incorporation of a coupling model (CM). The structure dependence of β is described in 3 semi-phenomenological equations. The temperature and structure dependence of the relaxation time of the Johari-Goldstein (JG) relaxation ...
Luan Shenghua S Center for Adaptive Behavior and Cognition, Max Planck Institute for Human - - 2014
In a lexicographic semiorders model for preference, cues are searched in a subjective order, and an alternative is preferred if its value on a cue exceeds those of other alternatives by a threshold Δ, akin to a just noticeable difference in perception. We generalized this model from preference to inference ...
Janjić Nataša J NJ 1Faculty of Medicine, University of Novi Sad, HajdukVeljkova 1-3, 21000 Novi Sad, Serbia 2Department of Physics, Faculty of Sciences, University of Novi Sad, Novi Sad, Serbia 3Department for Sport and Sports Medicine of Province Vojvodina, Masarikova25 , 21000 Novi Sad, - - 2014
The temporal patterns of running velocity is of profound interest for coaches and researchers involved in sprint racing. In thr present paper we applieda nonhomogeneous differential equation for the motion with resistance force proportional to the velocity for determination of the instantaneous velocity and instantaneous and average acceleration in the ...
Barhoum Suliman S Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania, - - 2014
In this work, we compare susceptometry-based oximetry (SBO) and two T2 -based methods for estimating resting baseline SvO2 in the superior sagittal sinus (SSS). SBO is a field-mapping technique whereas in T2 -based methods the intravascular blood signal is isolated either with velocity-encoded projections [projection-based T2 (PT2 )] or a ...
He L L School of Renewable Energy, North China Electric Power University, Beijing 102206, China. Electronic address: - - 2014
Little attention has been devoted to the characterization of colored noise in stochastic modeling systems. This study aims to propose an integrated numerical-simulation and statistical-inference method for the characterization of individual and mixed colored noises driving the DNAPL degradation kinetics. Through the method, the properties of colored noise (i.e. intensity ...
Sprecher David D Department of Mathematics, University of California, Santa Barbara, CA 93106, United States. Electronic address: - - 2014
The subject of this paper is algorithms for computing superpositions of real-valued continuous functions of several variables based on space-filling curves. The prototypes of these algorithms were based on Kolmogorov's dimension-reducing superpositions (Kolmogorov, 1957). Interest in these grew significantly with the discovery of Hecht-Nielsen that a version of Kolmogorov's formula ...
Georgiades Stelios S Offord Centre for Child Studies, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L8, Canada, - - 2014
The latent class structure of autism symptoms from the time of diagnosis to age 6 years was examined in a sample of 280 children with autism spectrum disorder. Factor mixture modeling was performed on 26 algorithm items from the Autism Diagnostic Interview - Revised at diagnosis (Time 1) and again at ...
Tran-Gia Johannes J Department of Diagnostic and Interventional Radiology, University of Würzburg, Würzburg, Germany. Electronic address: - - 2014
To include the flip angle distribution caused by the slice profile into the model used for describing the relaxation curves observed in inversion recovery Look-Locker FLASH T1 mapping for a more accurate determination of the relaxation parameters. For each inversion time, the flip angle dependent signal of the mono-exponential relaxation ...
Ricklefs Robert E RE Department of Biology, University of Missouri, St. Louis, Missouri - - 2014
Abstract Inferring the underlying speciation-extinction dynamics of a clade from the phylogenetic relationships of contemporary species has proven difficult, primarily because the record of extinction is absent. Moreover, models of diversification tend to emphasize either time homogeneity or gradual trends in speciation and extinction rates. In contrast, the fossil records ...
Galea Karen S KS Institute of Occupational Medicine (IOM), Edinburgh, - - 2014
Consumer uses of fuels and lubricants in Europe are subject to the Registration, Evaluation, Authorization and restriction of CHemicals (REACH) legislation. Ten volunteers completed a series of exposure situations to simulate filling a vehicle fuel tank with diesel (ES1 Diesel), adding lubricant to a car engine (two situations, one filling ...
Buchmann Nicolas A NA Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, Victoria, Australia, - - 2014
Non-volatile agents such as glycerol are being introduced into solution-based pMDI formulations in order to control mean precipitant droplet size. To assess their biopharmaceutical efficacy, both microscopic and macroscopic characteristics of the plume must be known, including the effects of external factors such as the flow generated by the patient's ...
Hill-Kapturczak Nathalie N Department of Psychiatry, The University of Texas Health Science Center at San Antonio, NRLC MC 7793, 7703 Floyd Curl Drive, San Antonio, TX, 78229-3900, - - 2014
Previously, we reported methods to estimate peak breath alcohol concentrations (BrAC) from transdermal alcohol concentrations (TAC) under conditions where alcohol consumption was controlled to produce similar BrAC levels in both sexes. This study characterized differences in the relationship between BrAC and TAC as a function of sex and developed a ...
Siegmund Gunter P GP MEA Forensic Engineers & Scientists, 11-11151 Horseshoe Way, Richmond, BC, V7A 4S5, Canada, - - 2014
A headform is needed to validate and compare helmet- and mouthguard-based sensors that measure the severity and direction of football head impacts. Our goal was to quantify the dynamic response of a mandibular load-sensing headform (MLSH) and to compare its performance and repeatability to an unmodified Hybrid III headform. Linear ...
Peng Jinzhu J School of Electrical Engineering, Zhengzhou University, Zhengzhou, Henan 450001, China. Electronic address: - - 2014
In this paper, mobile manipulator is divided into two subsystems, that is, nonholonomic mobile platform subsystem and holonomic manipulator subsystem. First, the kinematic controller of the mobile platform is derived to obtain a desired velocity. Second, regarding the coupling between the two subsystems as disturbances, Lyapunov functions of the two ...
Lu Kaifeng K a Forest Laboratories, Harborside Financial Center Plaza V , Jersey City , NJ - - 2014
Abstract For incomplete continuous longitudinal data with a monotone pattern, we study a pattern-mixture model which assumes that missingness only depends on observed data and the current missing value and that the conditional distribution of the current missing value differs from that of the observed patterns by location and scale ...
de Lau Hinke - - 2014
Traditional methods used for prediction of preterm delivery are subjective and inaccurate. The Electrohysterogram (EHG) and in particular the estimation of the EHG conduction velocity, is a relatively new promising method for detecting imminent preterm delivery. To date the analysis of the conduction velocity has relied on visual inspection of ...
Kiselica Andrew M - - 2014
Distress tolerance (DT), or the ability to withstand psychological distress, has been proposed as a mechanism underlying multiple forms of psychopathology. However, research on DT is limited in several areas. First, stability and change of DT over time has never been assessed in adults. Second, it is unclear whether alternative ...
Wang Yuan - - 2014
Accurate prediction to the detonation performances of different kinds of energetic materials has attracted significant attention in the area of high energy density materials (HEDMs). A common approach for the estimation of CHNO explosives is the Kamlet-Jacobs equation. However, with the development of energetic materials, the components of explosives are ...
Ricci Stefano S Information Engineering Department, University of Florence, Via S. Marta n. 3, 50139 Firenze, Italy. Electronic address: - - 2014
Maximum blood velocity estimates are frequently required in diagnostic applications, including carotid stenosis evaluation, arteriovenous fistula inspection, and maternal-fetal examinations. However, the currently used methods for ultrasound measurements are inaccurate and often rely on applying heuristic thresholds to a Doppler power spectrum. A new method that uses a mathematical model ...
Lyon Freire Izabela I Program of Defense Engineering, Military Institute of Engineering, Praça General Tibúrcio 80, Rio de Janeiro, 22290-270, Brazil - - 2014
This work investigates the direction-of-arrival problem. A time-delay-estimate (TDE) obtained from a peak of a correlation function is subject to two types of error: type I, approximation errors, and type II, errors due to spurious signals. The iterative least-squares algorithm tentatively selects spatially coherent subsets of TDEs containing no type ...
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