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Sfoungaristos Stavros S Urology Department, Hadassah University Hospital , The Hebrew University, Jerusalem, Israel - - 2014
Abstract Purpose: To produce and validate a predictive model based on CT parameters for calculating the probability of a stone to be visible on fluoroscopy of shockwave lithotripsy (SWL) and to compare its accuracy to that of kidneys-ureters-bladder (KUB) radiography. Methods: We retrospectively analyzed 306 patients (sample group) who underwent ...
Dagbovie Ayawoa S AS Department of Mathematics and Maxwell Institute for Mathematical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, - - 2014
Banded vegetation is a characteristic feature of semi-arid environments. It occurs on gentle slopes, with alternating stripes of vegetation and bare ground running parallel to the contours. A number of mathematical models have been proposed to investigate the mechanisms underlying these patterns, and how they might be affected by changes ...
Berman Gordon J GJ http://orcid.org/0000-0003-3588-7820 Joseph Henry Laboratories of Physics and Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08544, - - 2014
A frequent assumption in behavioural science is that most of an animal's activities can be described in terms of a small set of stereotyped motifs. Here, we introduce a method for mapping an animal's actions, relying only upon the underlying structure of postural movement data to organize and classify behaviours. ...
Bridge Eli S ES Oklahoma Biological Survey, University of Oklahoma, 111 E. Chesapeake St., Norman, OK 73019, USA. Phone +01 (405) - - 2014
Satellite-based tracking of migratory waterfowl is an important tool for understanding the potential role of wild birds in the long-distance transmission of highly pathogenic avian influenza. However, employing this technique on a continental scale is prohibitively expensive. This study explores the utility of stable isotope ratios in feathers in examining ...
Koponen Janne - - 2014
In ultrasound tomography, the spatial distribution of the speed of sound in a region of interest is reconstructed based on transient measurements made around the object. The computation of the forward problem (the full-wave solution) within the object is a computationally intensive task and can often be prohibitive for practical ...
Adler D S DS Department of Anthropology, University of Connecticut, 354 Mansfield Road, Unit 1176, Storrs, CT 06269, USA. - - 2014
The Lower to Middle Paleolithic transition (~400,000 to 200,000 years ago) is marked by technical, behavioral, and anatomical changes among hominin populations throughout Africa and Eurasia. The replacement of bifacial stone tools, such as handaxes, by tools made on flakes detached from Levallois cores documents the most important conceptual shift ...
Ben-David Avishai A RDECOM, Edgewood Chemical Biological Center, Aberdeen Proving Ground, MD 21010, USA. Electronic address: - - 2014
Titration of microorganisms in infectious or environmental samples is a corner stone of quantitative microbiology. A simple method is presented to estimate the microbial counts obtained with the serial dilution technique for microorganisms that can grow on bacteriological media and develop into a colony. The number (concentration) of viable microbial ...
Goodsman Devin W DW Department of Biological Sciences, CW 405, Biological Sciences Bldg., University of Alberta, Edmonton, Alberta, Canada T6G 2E9. Electronic address: - - 2014
As researchers collect spatiotemporal population and genetic data in tandem, models that connect demography and dispersal to genetics are increasingly relevant. The dominant spatiotemporal model of invasion genetics is the stepping-stone model which represents a gradual range expansion in which individuals jump to uncolonized locations one step at a time. ...
Taira Wataru W From the BCPH Unit of Molecular Physiology, Department of Chemistry, Biology and Marine Science, Faculty of Science, University of the Ryukyus, Nishihara, Okinawa 903-0213, Japan (Taira, Nohara, Hiyama, and - - 2014
To evaluate the effects of the Fukushima nuclear accident on the surrounding area, we studied the pale grass blue butterfly Zizeeria maha, the most common butterfly in Japan. We here review our important findings and their implications. We found forewing size reduction, growth retardation, high mortality rates, and high abnormality ...
Azhar Faisal - - 2014
In this paper, a method is presented to label and track anatomical landmarks (e.g., head, hand/arm, feet), which are referred to as significant body points (SBPs), using implicit body models. By considering the human body as an inverted pendulum model, ellipse fitting and contour moments are applied to classify it ...
Yu Jin-Gang - - 2014
Visual saliency is attracting more and more research attention since it is beneficial to many computer vision applications. In this paper, we propose a novel bottom-up saliency model for detecting salient objects in natural images. First, inspired by the recent advance in the realm of statistical thermodynamics, we adopt a ...
Duck Geraint G School of Computer Science, Manchester Institute of Biotechnology and Computational and Evolutionary Biology, Faculty of Life Sciences, The University of Manchester, Manchester M13 9PL, - - 2014
As a natural consequence of being a computer-based discipline, bioinformatics has a strong focus on database and software development, but the volume and variety of resources are growing at unprecedented rates. An audit of database and software usage patterns could help provide an overview of developments in bioinformatics and community ...
Chikhlyaev Igor I Institute of Ecology of the Volga River Basin RAS, 445003, Russia, Samara region, Togliatti, 10 Komzina - - 2014
In this paper we considered information on the helminth fauna of the European common brown frog (Rana temporaria Linnaeus, 1758) from 10 regions of the Volga basin. This study includes consolidated data of different authors over the last 30 years, supplemented by the results of our own research. There are ...
Roth Joseph - - 2014
We hypothesize that an individual computer user has a unique and consistent habitual pattern of hand movements, independent of the text, while typing on a keyboard. As a result, this paper proposes a novel biometric modality named "Typing Behavior (TB)" for continuous user authentication. Given a webcam pointing toward a ...
Oswal Ashwini A Wellcome Trust Centre for Neuroimaging, 12 Queen Square, London, UK; Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, Oxford, UK. Electronic address: - - 2014
Beamforming is a spatial filtering based source reconstruction method for EEG and MEG that allows the estimation of neuronal activity at a particular location within the brain. The computation of the location specific filter depends solely on an estimate of the data covariance matrix and on the forward model. Increasing ...
Cyr Adam J AJ a BioEngineering Program, University of Kansas , Learned Hall, 1530 W 15th Street, Lawrence , KS , - - 2014
The net laxity of the knee is a product of individual ligament structures that provide constraint for multiple degrees of freedom (DOF). Clinical laxity assessments are commonly performed along a single axis of motion, and lack analyses of primary and coupled motions in terms of translations and rotations of the ...
Piomelli U U Department of Mechanical and Materials Engineering, Queen's University, Kingston, Ontario, Canada - - 2014
Since its introduction, in the early 1970s, large eddy simulations (LES) have advanced considerably, and their application is transitioning from the academic environment to industry. Several landmark developments can be identified over the past 40 years, such as the wall-resolved simulations of wall-bounded flows, the development of advanced models for ...
Russo Gabrielle A GA Department of Anthropology, Stony Brook University, Stony Brook, NY, 11794-8081, - - 2014
Tail reduction/loss independently evolved in a number of mammalian lineages, including hominoid primates. One prerequisite to appropriately contextualizing its occurrence and understanding its significance is the ability to track evolutionary changes in tail length throughout the fossil record. However, to date, the bony correlates of tail length variation among living ...
Pineda-Pardo José Angel JA Laboratory of Neuroimaging. Centre for Biomedical Technology. Universidad Politécnica de Madrid. Campus de Montegancedo, 28223, Pozuelo de Alarcón, Spain; Laboratory of Cognitive and Computational Neuroscience. Centre for Biomedical Technology. Universidad Politécnica de Madrid. Campus de Montegancedo, 28223, Pozuelo de Alarcón, Spain. Electronic address: - - 2014
Whole brain resting state connectivity is a promising biomarker that might help to obtain an early diagnosis in many neurological diseases, such as dementia. Inferring resting-state connectivity is often based on correlations, which are sensitive to indirect connections, leading to an inaccurate representation of the real backbone of the network. ...
Liu Ruimin R State Key Laboratory of Environment Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China. Electronic address: - - 2014
Interpolation processes and results are generally accompanied by uncertainty which affects the spatial and temporal properties of pollutants. Based on the 4 period sample data of total phosphorus (TP) collected from the Yangtze River Estuary (YRE) in 2010 and 2011, the uncertainty of spatial-temporal variation was analyzed with interpolation methods ...
Wang Bin - - 2014
This paper presents a novel approach for both fast and accurately retrieving similar shapes. A hierarchical string cuts (HSC) method is proposed to partition a shape into multiple level curve segments of different lengths from a point moving around the contour to describe the shape gradually and completely from the ...
Wagner Andreas A Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland The Swiss Institute of Bioinformatics, Quartier Sorge - Batiment Genopode, 1015 Lausanne, Switzerland The Santa Fe Institute, 1399 Hyde Park Road, Santa Fe, NM 87501, USA - - 2014
Innovations in biological evolution and in technology have many common features. Some of them involve similar processes, such as trial and error and horizontal information transfer. Others describe analogous outcomes such as multiple independent origins of similar innovations. Yet others display similar temporal patterns such as episodic bursts of change ...
Edwards Christopher A CA Department of Ocean Sciences, University of California, Santa Cruz, CA 95064; email: - - 2014
This article reviews the past 15 years of developments in regional ocean data assimilation. A variety of scientific, management, and safety-related objectives motivate marine scientists to characterize many ocean environments, including coastal regions. As in weather prediction, the accurate representation of physical, chemical, and/or biological properties in the ocean is ...
Jin Long - - 2014
In this brief, a discrete-time Zhang neural network (DTZNN) model is first proposed, developed, and investigated for online time-varying nonlinear optimization (OTVNO). Then, Newton iteration is shown to be derived from the proposed DTZNN model. In addition, to eliminate the explicit matrix-inversion operation, the quasi-Newton Broyden-Fletcher-Goldfarb-Shanno (BFGS) method is introduced, ...
Chong Jo Woon JW Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, 01609-2280, USA, - - 2014
Motion and noise artifacts (MNA) are a serious obstacle in utilizing photoplethysmogram (PPG) signals for real-time monitoring of vital signs. We present a MNA detection method which can provide a clean vs. corrupted decision on each successive PPG segment. For motion artifact detection, we compute four time-domain parameters: (1) standard ...
Fatone Stefania S Department of Physical Medicine and Rehabilitation, Feinberg School of Medicine, Prosthetics-Orthotics Center, Northwestern University, Chicago, IL, USA - - 2014
Misalignment of an articulated ankle-foot orthosis joint axis with the anatomic joint axis may lead to discomfort, alterations in gait, and tissue damage. Theoretical, two-dimensional models describe the consequences of misalignments, but cannot capture the three-dimensional behavior of ankle-foot orthosis use. The purpose of this project was to develop a ...
Zille Pascal - - 2014
In this paper, an original observation model for multiresolution optical flow estimation is introduced. Multiresolution frameworks, often based on coarse-to-fine warping strategies, are widely used by state-of-the-art optical flow methods. They allow the recovery of large motions by successive estimations of the flow field at several resolution levels. Although such ...
Partridge Roland W RW 1 Royal Hospital for Sick Children , Edinburgh, Scotland, United Kingdom - - 2014
Abstract Introduction: Objective performance feedback has potential to maximize the training benefit of laparoscopic simulators. Instrument movement metrics are, however, currently the preserve of complex and expensive systems. We aimed to develop and validate affordable, user-ready software that provides objective feedback by tracking instrument movement in a "take-home" laparoscopic simulator. ...
Wu Dan D Department of Mechanical and Industrial Engineering, The University of Iowa, Iowa City, IA, 52242, - - 2014
A three-dimensional (3D) thermo-fluid model is developed to study regional distributions of temperature and water vapor in three multi-detector row computed-tomography-based human airways with minute ventilations of 6, 15 and 30 L/min. A one-dimensional (1D) model is also solved to provide necessary initial and boundary conditions for the 3D model. Both ...
Vijayan Sinara S Norwegian University of Science and Technology, 7491 Trondheim, - - 2014
Treatments like radiotherapy and focused ultrasound in the abdomen require accurate motion tracking, in order to optimize dosage delivery to the target and minimize damage to critical structures and healthy tissues around the target. 4D ultrasound is a promising modality for motion tracking during such treatments. In this study, the ...
Verdière Kévin K GAUS, Department of Mechanical Engineering, Université de Sherbrooke (Qc), J1K 2R1, Canada Kevin.Verdiere@USherbrooke.ca, Raymond.Panneton@USherbrooke.ca, - - 2014
A transfer matrix method to predict absorption coefficient and transmission loss of parallel assemblies of materials which can be expressed by a 2 × 2 transfer matrix was published recently. However, the usual method based on the sum of admittances is largely used to predict also surface admittance of parallel assemblies. This ...
Nagel Tina M - - 2014
Background: Performing planar biaxial testing and using nominal stress-strain curves for soft tissue characterization is most suitable when (1) the test produces homogeneous strain fields, (2) fibers are aligned with the coordinate axes, and (3) strains are measured far from boundaries. Some tissue types (such as lamellae of the annulus ...
Miravete Verónica V Departament de Ciències Ambientals, Facultat de Ciències, Universitat de Girona, Campus Montilivi, 17071 Girona, Catalonia, Spain - - 2014
Human transportation facilitates the dispersal of exotic ants, but few studies have quantified the magnitude and geography of these movements. We used several non-parametric indices to estimate the number of species successfully introduced to or established in new regions. We also compared their source biogeographic realms to assess the importance ...
Liu Feng F Key Laboratory for NeuroInformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 611054, Sichuan, People's Republic of - - 2014
Functional neuroimaging studies have found intra-regional activity and inter-regional connectivity alterations in patients with post-traumatic stress disorder (PTSD). However, the results of these studies are based on group-level statistics and therefore it is unclear whether PTSD can be discriminated at single-subject level, for instance using the machine learning approach. Here, ...
Menys A A Centre for Medical Imaging, 3rd Floor East, 250 Euston Road London NW1 2PG, UCL Division of Medicine, London, - - 2014
At present, registration-based quantification of bowel motility from dynamic MRI is limited to breath-hold studies. Here we validate a dual-registration technique robust to respiratory motion for the assessment of small bowel and colonic motility. Small bowel datasets were acquired in breath-hold and free-breathing in 20 healthy individuals. A pre-processing step ...
Liu Hong H School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China; Key Laboratory of Education Ministry for Image Processing and Intelligence Control, Wuhan, Hubei 430074, - - 2014
A robust and accurate center-frequency (CF) estimation (RACE) algorithm for improving the performance of the local sine-wave modeling (SinMod) method, which is a good motion estimation method for tagged cardiac magnetic resonance (MR) images, is proposed in this study. The RACE algorithm can automatically, effectively and efficiently produce a very ...
Li Changyang - - 2014
Automated and general medical image segmentation can be challenging because the foreground and the background may have complicated and overlapping density distributions in medical imaging. Conventional region-based level-set algorithms often assume piecewise constant (PC) or piecewise smooth (PS) for segments, which are implausible for general medical image segmentation. Further, low ...
Scarfe Peter P School of Psychology and Clinical Language Sciences, University of Reading, Reading, Berkshire, United Kingdom RG6 6AL - - 2014
When the sensory consequences of an action are systematically altered our brain can recalibrate the mappings between sensory cues and properties of our environment. This recalibration can be driven by both cue conflicts and altered sensory statistics, but neither mechanism offers a way for cues to be calibrated so they ...
Urzal Vanda V Department of orthodontics and oral facial genetics, faculty of dentistry, Porto university, rua Dr. Manuel Pereira da Silva, 4200-393 Porto, Portugal. Electronic address: - - 2014
The aim of this study was to determine a differential diagnostic model for anterior open bite (AOB) in children in order to predict evolution with growth in cases of skeletal or dysfunctional dysplasia. The sample was composed of 128 subjects divided into 2 groups according to overbite values: a control ...
Dumestre Danielle D Section of Plastic and Reconstructive Surgery, Department of Surgery, University of Calgary, Alberta, - - 2014
To systematically review literature pertaining to microsurgical skill assessment tools to determine those specific to, and validated for, microsurgery training. Multiple databases were searched with preset terms. The search dates included all years up to May 2014. The eligibility criteria included the presence of statistical comparison with a control group ...
Camacho-Valdez Vera V Centro de Investigación en Alimentación y Desarrollo A.C., Av. Sábalo - Cerritos s/n, P.O. Box 711, 82100, Mazatlán, Sinaloa, - - 2014
Changes in the coastal landscape of Southern Sinaloa (Mexico), between 2000 and 2010, were analyzed to relate spatial variations in wetlands extent with the provision and economic value of the ecosystem services (ES). Remote sensing techniques applied to Landsat TM imagery were used to evaluate land use/land cover changes while ...
Sandau Martin M Department of Neuroscience and Pharmacology, University of Copenhagen, 2200 Copenhagen N, Denmark; The Danish Institute of Fire and Security Technology, 2650 Hvidovre, Denmark. Electronic address: - - 2014
Estimating 3D joint rotations in the lower extremities accurately and reliably remains unresolved in markerless motion capture, despite extensive studies in the past decades. The main problems have been ascribed to the limited accuracy of the 3D reconstructions. Accordingly, the purpose of the present study was to develop a new ...
Eigenbrod Felix F Centre for Biological Sciences, University of Southampton, Southampton, SO17 1BJ, - - 2014
The combined effects of climate change and habitat loss represent a major threat to species and ecosystems around the world. Here, we analyse the vulnerability of ecosystems to climate change based on current levels of habitat intactness and vulnerability to biome shifts, using multiple measures of habitat intactness at two ...
Aguilera Fátima F Department of Civil and Environmental Engineering, University of Perugia, Borgo XX Giugno 74, 06121, Perugia, Italy, - - 2014
The aim of the present study was to develop pheno-meteorological models to explain and forecast the main olive flowering phenological phases within the Mediterranean basin, across a latitudinal and longitudinal gradient that includes Tunisia, Spain, and Italy. To analyze the aerobiological sampling points, study periods from 13 years (1999-2011) to 19 years ...
van Vugt Floris T FT Institute of Music Physiology and Musicians' Medicine, University of Music, Drama, and Media, Emmichplatz 1, 30175, Hanover, Germany, - - 2014
Humans are capable of learning a variety of motor skills such as playing the piano. Performance of these skills is subject to multiple constraints, such as musical phrasing or speed requirements, and these constraints vary from one context to another. In order to understand how the brain controls highly skilled ...
Vrancken A C T AC Orthopaedic Research Lab, Radboud University Medical Center, Nijmegen, The - - 2014
The geometry-dependent functioning of the meniscus indicates that detailed knowledge on 3D meniscus geometry and its inter-subject variation is essential to design well functioning anatomically shaped meniscus replacements. Therefore, the aim of this study was to quantify 3D meniscus geometry and to determine whether variation in medial meniscus geometry is ...
Stanley Calandra Q CQ Department of Biology, York University, Toronto, M3J 1P3, Canada; Smithsonian Conservation Biology Institute, Migratory Bird Center, National Zoological Park, Washington, D.C., 20013, U.S.A.; Canadian Wildlife Service, Ontario Region, 867 Lakeshore Road, Burlington, Ontario, - - 2014
Many migratory animals are experiencing rapid population declines, but migration data with the geographic scope and resolution to quantify the complex network of movements between breeding and nonbreeding regions are often lacking. Determining the most frequently used migration routes and nonbreeding regions for a species is critical for understanding population ...
Barr W Andrew WA Department of Anthropology, University of Texas at Austin, Austin, Texas, - - 2014
Bovid astragali are one of the most commonly preserved bones in the fossil record. Accordingly, astragali are an important target for studies seeking to predict the habitat preferences of fossil bovids based on bony anatomy. However, previous work has not tested functional hypotheses linking astragalar morphology with habitat while controlling ...
Deck Leslie L - - 2014
A general method of surface profiling with phase-shifting interferometry techniques uses iterative linear regression to fit the sequence of interferograms to a physical model of the cavity. The physical model incorporates all important cavity influences, including environmentally induced rigid-body motion, phase shifter miscalibrations, multiple interference, geometry-induced spatial phase-shift variations, and ...
Rahman Md Rejaur MR College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, Hubei, China, - - 2014
This study was an attempt to analyse the regional environmental quality with the application of remote sensing, geographical information system, and spatial multiple criteria decision analysis and, to project a quantitative method applicable to identify the status of the regional environment of the study area. Using spatial multi-criteria evaluation (SMCE) ...
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