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Kireeva Natalia V NV Laboratory of New Physical-Chemical Problems, Frumkin Institute of Physical, Chemistry & Electrochemistry, Russian Academy of Sciences, Leninsky pr-t 31, 119071 Moscow (Russia); Department of Molecular Physics, Moscow Institute of Physics & Technology, Institutsky per. 9, 141700, Dolgoprudny (Russia). - - 2014
Over the years, a number of dimensionality reduction techniques have been proposed and used in chemoinformatics to perform nonlinear mappings. In this study, four representatives of nonlinear dimensionality reduction methods related to two different families were analyzed: distance-based approaches (Isomap and Diffusion Maps) and topology-based approaches (Generative Topographic Mapping (GTM) ...
Kerpedjiev Peter - - 2014
Modern DNA sequencing methods produce vast amounts of data that often requires mapping to a reference genome. Most existing programs use the number of mismatches between the read and the genome as a measure of quality. This approach is without a statistical foundation and can for some data types result ...
Huang Anhui A Department of Electrical and Computer Engineering, University of Miami, Coral Gables, Florida, United States of - - 2014
Pathway-based genome-wide association studies (GWAS) can exploit collective effects of causal variants in a pathway to increase power of detection. However, current methods for pathway-based GWAS do not consider epistatic effects of genetic variants, although interactions between genetic variants may play an important role in influencing complex traits. In this ...
Ugarte Maria Dolores MD 1Department of Statistics and O. R., Public University of Navarre, - - 2014
Spatio-temporal disease mapping comprises a wide range of models used to describe the distribution of a disease in space and its evolution in time. These models have been commonly formulated within a hierarchical Bayesian framework with two main approaches: an empirical Bayes (EB) and a fully Bayes (FB) approach. The ...
Wang Changqing C School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, China; School of Biomedical Engineering, Southern Medical University, Guangzhou, - - 2014
Fitting the measured decay signal to the first moment in the presence of noncentral chi noise (M(1) NCM) can correctly address the effect of noise on the effective transverse relaxation rate (R2*) relaxometry of iron loaded liver. However, this method requires intensive computation, which restricts its application to R2* mapping. ...
Yang Yingsi Y Department of Mathematics, The Hong Kong University of Science and Technology, Hong Kong, - - 2014
This study sought to improve the predicative performance and goodness-of-fit of mapping models, as part of indirect valuation, by introducing cubic spline smoothing to map a group of health-related quality of life (HRQOL) measures onto a preference-based measure. This study was a secondary analysis of a cross-sectional health survey data ...
Popa Sorin - - 2014
A full set of FEM studies of the catheter within a cylindrical cuvette and within an elliptical cuvette are presented along with novel insight on the fundamental electromagnetic properties of the catheter. An in-vitro experiment with modified small mouse PV catheters was conducted and the results are presented as a ...
Shi Yonggang - - 2014
In this paper we present a novel approach for the intrinsic mapping of anatomical surfaces and its application in brain mapping research. Using the Laplace-Beltrami eigensystem, we represent each surface with an isometry invariant embedding in a high dimensional space. The key idea in our system is that we realize ...
Bucher B B Swiss Federal Nuclear Safety Inspectorate, Industriestrasse 19, Brugg 5200, - - 2014
During an international intercomparison exercise of airborne gamma spectrometry held in Switzerland 2007 teams from Germany, France and Switzerland were proving their capabilities. One of the tasks was the composite mapping of an area around Basel. Each team was mainly covering the part of its own country at its own ...
Sohn Kwanghyun K Cardiovascular Research Center, Massachusetts General Hospital, Boston, - - 2014
We have introduced a method to guide radiofrequency catheter ablation (RCA) procedures that estimates the location of a catheter tip used to pace the ventricles and the target site for ablation using the single equivalent moving dipole (SEMD). To investigate the accuracy of this method in resolving epicardial and endocardial ...
Lee Minhyun - - 2014
For the effective photovoltaic (PV) system, it is necessary to accurately determine the monthly average daily solar radiation (MADSR) and to develop an accurate MADSR map which can simplify the decision-making process for selecting the suitable location of the PV system installation. Therefore, this study aimed to develop a framework ...
Quintana-Pacheco Yuri Y IBIS Research Group, University of Alicante, Alicante, Spain. Electronic address: - - 2014
The Growing Neural Gas model is used widely in artificial neural networks. However, its application is limited in some contexts by the proliferation of nodes in dense areas of the input space. In this study, we introduce some modifications to address this problem by imposing three restrictions on the insertion ...
Koehl Patrice P University of California, Davis, - - 2014
A new algorithm is presented that provides a constructive way to conformally warp a triangular mesh of genus zero to a destination surface with minimal metric deformation, as well as a means to compute automatically a measure of the geometric difference between two surfaces of genus zero. The algorithm takes ...
Chan Wing-Yin - - 2014
It is a common practice nowadays to plan needle access pathways to the volumetric organs before performing surgeries. An enormous amount of needle access planning systems has been proposed in recent years. Recent works mainly focus on the system usability or target accessibility. Visualization of the planned access pathways has ...
Liu Zheng Z Yunnan University of Finance and Economics, Kunming, Yunnan, P.R.China, - - 2014
Recent advances in precision agriculture technologies and spatial statistics allow realistic, site-specific estimation of nematode damage to field crops and provide a platform for the site-specific delivery of nematicides within individual fields. This paper reviews the spatial statistical techniques that model correlations among neighboring observations and develop a spatial economic ...
Ball Richard D RD Neuromuscular and Rehabilitation Associates of Northern Michigan, Traverse City, - - 2014
Radiofrequency ablation (RFA) is a safe and effective pain therapy used to create sensory dysfunction in appropriate nerves via thermal damage. While commonly viewed as a simple process, RF heating is actually quite complex from an electrical engineering standpoint, and it is difficult for the non-electrical engineer to achieve a ...
Springer Yuri P - - 2014
In addition to being a major nuisance biter, the lone star tick, Amblyomma americanum (L.), is increasingly recognized as an important vector of pathogens affecting humans, domestic animals, and wildlife. Despite its notoriety, efforts have been lacking to define the spatial occurrence ofA. americanum in the continental United States with ...
Mathew Kiran K Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, - - 2014
Solid-liquid interfaces are at the heart of many modern-day technologies and provide a challenge to many materials simulation methods. A realistic first-principles computational study of such systems entails the inclusion of solvent effects. In this work, we implement an implicit solvation model that has a firm theoretical foundation into the ...
Stikov Nikola N McConnel Brain Imaging Center, Montreal Neurological Institute, McGill University, Montreal, - - 2014
There are many T1 mapping methods available, each of them validated in phantoms and reporting excellent agreement with literature. However, values in literature vary greatly, with T1 in white matter ranging from 690 to 1100 ms at 3 Tesla. This brings into question the accuracy of one of the most ...
Denniss Jonathan J Optometry and Vision Sciences/Computing and Information Systems, The University of Melbourne, Alice Hoy Building, Melbourne, Victoria, 3010, - - 2014
Purpose: We have developed customised maps that relate visual field and optic nerve head (ONH) regions according to individual anatomy. In this study we aimed to determine feasible map resolution for research use, and to make a principled recommendation of sector size for clinical applications. Methods: Measurement variability in fovea-ONH ...
Uçüncü Esra E Ankara University, Department of Biology, Faculty of Science, Ankara 06100, - - 2014
The present study investigates and models the effect of laser ablated silver nanoparticles (AgNPs) on the development of the aquatic macrophyte Lemna minor. Toxic effects of five different AgNP concentrations (8, 16, 32, 96 and 128μgL(-1)) on L. minor were recorded over seven days under simulated natural conditions. Biosorption of ...
Rettmann Maryam E ME Biomedical Imaging Resource, Mayo Clinic College of Medicine, Rochester, Minnesota - - 2014
In cardiac ablation therapy, accurate anatomic guidance is necessary to create effective tissue lesions for elimination of left atrial fibrillation. While fluoroscopy, ultrasound, and electroanatomic maps are important guidance tools, they lack information regarding detailed patient anatomy which can be obtained from high resolution imaging techniques. For this reason, there ...
Bookstein Fred L FL Department of Anthropology, University of Vienna, A-1091 Vienna, Austria, and Department of Statistics, University of Washington, Seattle, WA 98195. - - 2014
Bentley et al.'s claim that their "map … captures the essence of decision making" (target article, Abstract) is deconstructed and shown to originate in a serious misunderstanding of the role of principal components and statistical graphics in the generation of pattern claims and hypotheses from profile data. Three alternative maps ...
Mwase Enala T ET School of Veterinary Medicine, University of Zambia, Lusaka, - - 2014
Past case reports have indicated that lymphatic filariasis (LF) occurs in Zambia, but knowledge about its geographical distribution and prevalence pattern, and the underlying potential environmental drivers, has been limited. As a background for planning and implementation of control, a country-wide mapping survey was undertaken between 2003 and 2011. Here ...
Gellert Georg G North Rhine-Westphalia State Agency for Nature Environment and Consumer Protection, Postfach 101052, 45610, Recklinghausen, Germany, - - 2014
Fifteen years ago, the first mapping guidelines for the recording and evaluation of river physical habitat quality in Germany, closely following the Länder Arbeitsgemeinschaft Wasser (LAWA) field survey, have been published. In light of this experience, a revised version has now been developed for North Rhine-Westphalia (West Germany). For the ...
Savini Alessandra A Milano-Bicocca University, Dept. of Geological Sciences and Geotechnologies, Milano, Italy ; Senckenberg am Meer, Marine Research Department, Südstrand, Wilhelmshaven, - - 2014
In this study, we mapped the distribution of Cold-Water Coral (CWC) habitats on the northern Ionian Margin (Mediterranean Sea), with an emphasis on assessing coral coverage at various spatial scales over an area of 2,000 km(2) between 120 and 1,400 m of water depth. Our work made use of a ...
Longo Matthew R MR Department of Psychological Sciences, Birkbeck, University of London, Malet Street, London, WC1E 7HX, UK, - - 2014
Perceiving the external spatial location of the limbs using position sense requires that immediate proprioceptive afferent signals be combined with a stored body model specifying the size and shape of the body. Longo and Haggard (Proc Natl Acad Sci USA 107:11727-11732, 2010) developed a method to isolate and measure this ...
Guilford Tim T Animal Behaviour Research Group, Department of Zoology, South Parks Road, Oxford OX1 3PS, - - 2014
Homing pigeons (Columba livia) have been the central model of avian navigation research for many decades, but only more recently has research extended into understanding their mechanisms of orientation in the familiar area. The discovery (facilitated by GPS tracking) that pigeons gradually acquire with experience individually idiosyncratic routes home to ...
Reinertsen I I SINTEF Medical Technology, Trondheim, Norway, - - 2014
   Inaccurate placement of external ventricular drains (EVDs) is a common issue in cerebrospinal diversion procedures. The conventional freehand technique results in a high fraction of sub-optimally placed catheters, and the use of image guidance can improve these results. The purpose of this paper is the validation of the use of ...
Schreiber Jan J Max Planck Institute for Human Cognitive and Brain Sciences, Cortical Networks and Cognitive Functions, Leipzig, Germany. Electronic address: - - 2014
Diffusion MRI is a non-invasive method that potentially gives insight into the brain's white matter structure regarding the pathway of connections and properties of the axons. Here, we propose a novel global tractography method named Plausibility Tracking that provides the most plausible pathway, modeled as a smooth spline curve, between ...
Ravikumar K E - - 2014
The creation of biological pathway knowledge bases is largely driven by manual effort to curate based on evidences from the scientific literature. It is highly challenging for the curators to keep up with the literature. Text mining applications have been developed in the last decade to assist human curators to ...
Gitter Anthony - - 2014
Advances in experimental techniques resulted in abundant genomic, transcriptomic, epigenomic, and proteomic data that have the potential to reveal critical drivers of human diseases. Complementary algorithmic developments enable researchers to map these data onto protein-protein interaction networks and infer which signaling pathways are perturbed by a disease. Despite this progress, ...
Sohn Kwanghyun - - 2014
Radio-frequency catheter ablation (RCA) is an established treatment for ventricular tachycardia (VT). A key feature of the RCA procedure is the need for a mapping approach that facilitates the identification of the target ablation site. In this study, we investigate the effect of the location of the reference potential and ...
Yarrow Stuart S Institute for Adaptive and Neural Computation, School of Informatics, University of Edinburgh, Edinburgh, United - - 2014
Topographic maps are an often-encountered feature in the brains of many species, yet there are no standard, objective procedures for quantifying topography. Topographic maps are typically identified and described subjectively, but in cases where the scale of the map is close to the resolution limit of the measurement technique, identifying ...
Payá Luis L Departamento de Ingeniería de Sistemas y Automática, Miguel Hernández University, Avda. de la Universidad s/n, Elche (Alicante), Spain. - - 2014
Map building and localization are two crucial abilities that autonomous robots must develop. Vision sensors have become a widespread option to solve these problems. When using this kind of sensors, the robot must extract the necessary information from the scenes to build a representation of the environment where it has ...
Looney Chris C Washington State Department of Agriculture, 1111 Washington St. SE, Olympia WA, - - 2014
Carabidae) collected from the Hanford Nuclear Reservation and Hanford National Monument (together the Hanford Site), which is located in south-central Washington State. The Site is a relatively undisturbed relict of the shrub-steppe habitat present throughout much of the western Columbia Basin before the westward expansion of the United States. Species, ...
Kent Brian P BP Department of Statistics, Carnegie Mellon University, Pittsburgh, Pennsylvania, United States of - - 2014
Fiber tractography on diffusion imaging data offers rich potential for describing white matter pathways in the human brain, but characterizing the spatial organization in these large and complex data sets remains a challenge. We show that level set trees-which provide a concise representation of the hierarchical mode structure of probability ...
Rashid Maliha M Department of Mathematics, International Islamic University, Sector H-10, Islamabad 44000, - - 2014
We define the concept of β ℱ L -admissible for a pair of L-fuzzy mappings and establish the existence of common L-fuzzy fixed point theorem. Our result generalizes some useful results in the literature. We provide an example to support our result.
Zhao Bo B Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign ; Beckman Institute for Advanced Science and Technology, University of Illinois at - - 2013
MR parameter mapping (e.g., T 1 mapping, T 2 mapping, or [Formula: see text] mapping) is a valuable tool for tissue characterization. However, its practical utility has been limited due to long data acquisition time. This paper addresses this problem with a new model-based parameter mapping method, which utilizes an ...
Haase Christian C Philips Research, 22335 Hamburg, Germany; Karlsruher Institut für Technologie, 76131 Karlsruhe, Germany. Electronic address: - - 2013
Tracking the location of medical devices in interventional X-ray data solves different problems. For example the motion information of the devices is used to determine cardiac or respiratory motion during X-ray guided procedures or device features are used as landmarks to register images. In this publication an approach using a ...
Lee Li-Hui LH Department of Computer Science, University of Leipzig, Leipzig, - - 2013
To address the problem of mapping local laboratory terminologies to Logical Observation Identifiers Names and Codes (LOINC). To study different ontology matching algorithms and investigate how the probability of term combinations in LOINC helps to increase match quality and reduce manual effort. We proposed two matching strategies: full name and ...
Mohedano Raúl R Universidad Politécnica de Madrid, - - 2013
We propose a new Bayesian framework for automatically determining the position (location and orientation) of an uncalibrated camera using the observations of moving objects and a schematic map of the passable areas of the environment. Our approach takes advantage of static and dynamic information on the scene structures through prior ...
Gaspar Héléna A - - 2013
Earlier (Kireeva et al. Mol. Inf. 2012, 31, 301-312), we demonstrated that generative topographic mapping (GTM) can be efficiently used both for data visualization and building of classification models in the initial D-dimensional space of molecular descriptors. Here, we describe the modeling in two-dimensional latent space for the four classes ...
Shoults-Wilson W Aaron - - 2013
Bivalves secrete their shells in an annual fashion, resulting in discrete bands of growth within each shell. In doing so, they may incorporate trace elements in concentrations reflecting exposure. This may make it possible to use them as archives of environmental information, such as contamination events. In this study, we ...
Almécija Sergio - - 2013
Orrorin tugenensis (Kenya, ca. 6 Ma) is one of the earliest putative hominins. Its proximal femur, BAR 1002'00, was originally described as being very human-like, although later multivariate analyses showed an australopith pattern. However, some of its traits (for example, laterally protruding greater trochanter, medially oriented lesser trochanter and presence of ...
Gobbel Glenn T - - 2013
Rapid, automated determination of the mapping of free text phrases to pre-defined concepts could assist in the annotation of clinical notes and increase the speed of natural language processing systems. The aim of this study was to design and evaluate a token-order-specific naïve Bayes-based machine learning system (RapTAT) to predict ...
Lex Alexander - - 2013
Biological pathway maps are highly relevant tools for many tasks in molecular biology. They reduce the complexity of the overall biological network by partitioning it into smaller manageable parts. While this reduction of complexity is their biggest strength, it is, at the same time, their biggest weakness. By removing what ...
Forsberg Brian C - - 2013
A simple intuitive approach to modified ultrafiltration (MUF) may improve the safety of this technique and enhance the adoption rate of MUF in pediatric and adult centers. This simplified technique is more easily implemented than the traditional MUF technique and will allow teams to adopt this technique successfully with ease.
Datla Naresh V - - 2013
Active needles are recently being developed to improve steerability and placement accuracy for various medical applications. These active needles can bend during insertion by actuators attached to their bodies. The bending of active needles enables them to be steered away from the critical organs on the way to target and ...
Barman Rahul - - 2013
We used a land surface model to quantify the causes and extents of biases in terrestrial gross primary production (GPP) due to the use of meteorological reanalysis datasets. We first calibrated the model using meteorology and eddy covariance data from 25 flux tower sites ranging from the tropics to the ...
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