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Kumar Naveen N Department of Pharmaceutical Analysis, Indo-Soviet College of Pharmacy (ISFCP), Moga 142001, - - 2014
This article presents various important tools of chemometrics utilized as data evaluation tools generated by various hyphenated analytical techniques including their application since its advent to today. The work has been divided into various sections, which include various multivariate regression methods and multivariate resolution methods. Finally the last section deals ...
Fan Mingyu - - 2014
Geodesic distance, as an essential measurement for data dissimilarity, has been successfully used in manifold learning. However, most geodesic distance-based manifold learning algorithms have two limitations when applied to classification: 1) class information is rarely used in computing the geodesic distances between data points on manifolds and 2) little attention ...
Lee Eunah E Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, MD 20852, - - 2014
Volumetric computed tomography dose index (CTDIvol) is an important dose descriptor to reconstruct organ doses for patients combined with the organ dose calculated from computational human phantoms coupled with Monte Carlo transport techniques. CTDIvol can be derived from weighted CTDI (CTDIw) normalised to the tube current-time product (mGy/100 mAs), using knowledge ...
Dentler Kathrin - - 2014
Our study aims to assess the influence of data quality on computed Dutch hospital quality indicators, and whether colorectal cancer surgery indicators can be computed reliably based on routinely recorded data from an electronic medical record (EMR). Cross-sectional study in a department of gastrointestinal oncology in a university hospital, in ...
Lee Sang J SJ Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, MA, - - 2014
The accuracy of digital impressions greatly influences their clinical viability in implant restorations. The aim of this study was to compare the accuracy of gypsum models acquired from the conventional implant impression to digitally milled models created from direct digitalization by three-dimensional analysis. Thirty gypsum and 30 digitally milled models, ...
Xue Cheng C Department of Orthopaedics and Traumatology, Wuxi Hospital of Traditional Chinese Medicine, Wuxi, Jiangsu, People's Republic of - - 2014
This study assessed the feasibility of anatomical coracoclavicular (CC) ligaments reconstruction, using three-dimensional (3D) measurement and virtual drilling. One-hundred-and-five 3D shoulder models were constructed using SuperImage software, based on computed tomography (CT) scan data. For each model the attachment sites and footprint dimensions of the CC ligaments were defined and ...
Lu Jun - - 2014
Movement related potentials (MRPs) are used as features in many brain-computer interfaces (BCIs) based on electroencephalogram (EEG). MRP feature extraction is challenging since EEG is noisy and varies between subjects. Previous studies used spatial and spatio-temporal filtering methods to deal with these problems. However, they did not optimize temporal information ...
Sterner Beckett B Field Museum of Natural History, Chicago, IL, United States. Electronic address: - - 2014
We argue that the mathematization of science should be understood as a normative activity of advocating for a particular methodology with its own criteria for evaluating good research. As a case study, we examine the mathematization of taxonomic classification in systematic biology. We show how mathematization is a normative activity ...
Tian Suyan - - 2014
Over the last decade, metabolomics has evolved into a mainstream enterprise utilized by many laboratories globally. Like other "omics" data, metabolomics data has the characteristics of a smaller sample size compared to the number of features evaluated. Thus the selection of an optimal subset of features with a supervised classifier ...
Rush Laura E LE School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS - - 2014
Density functional theory, coupled-cluster theory, and transition state theory are used to build a computational model of the kinetics of phosphine-free cobalt-catalyzed hydroformylation and hydrogenation of alkenes. The model provides very good agreement with experiment, and enables the factors that determine the selectivity and rate of catalysis to be determined. ...
Maroufy Vahed V a Department of Statistics and Actuarial Science , University of Waterloo , Waterloo , - - 2014
Abstract In this paper we discuss an optimization approach to the sample size question, founded on maximising the value of information in comparison studies with binary responses. The expected value of perfect information, EVPI, is calculated and the optimal sample size is obtained by maximizing the expected net gain of ...
Welch M C MC School of Science and Technology, University of New England, New South Wales, - - 2014
Agent-based modelling has proven to be a promising approach for developing rich simulations for complex phenomena that provide decision support functions across a broad range of areas including biological, social and agricultural sciences. This paper demonstrates how high performance computing technologies, namely General-Purpose Computing on Graphics Processing Units (GPGPU), and ...
Raj Anil A Stanford - - 2014
Tools for estimating population structure from genetic data are now used in a wide variety of applications in population genetics. However, inferring population structure in large modern data sets imposes severe computational challenges. Here, we develop efficient algorithms for approximate inference of the model underlying the STRUCTURE program using a ...
Abbey Craig K CK Department of Psychological and Brain Sciences, University of California, Santa Barbara, CA 93106. Electronic address: - - 2014
Our objective is to determine whether expected utility (EU) and the area under the receiver operator characteristic (AUC) are consistent with one another as endpoints of observer performance studies in mammography. These two measures characterize receiver operator characteristic performance somewhat differently. We compare these two study endpoints at the level ...
Sztrinkai Gergely G Trauma Centre, Pésterfy Hospital, Budapest, Hungary. - - 2014
In this study, we aimed to create a realistic model which is suitable for computerized simulation of any kind of fractures and provides reliable results. We used a plastic pelvic model to construct advanced specimens. The data were retrieved from the computed tomography scans of a healthy pelvis. A geometrically ...
Favero Simone Del - - 2014
Frequent and accurate reference measurements of blood-glucose (BG) concentration are key for modeling and for computing outcome metrics in clinical trials but difficult, invasive, and costly to collect. Continuous glucose monitoring (CGM) is a minimally-invasive technology that has the requested temporal resolution to substitute BG references for such a scope, ...
Flower Gordon - - 2014
Multiscale computational models can provide systemic evaluation and prediction of neuropharmacological drug effects. To date, little computational modeling work has been done to bridge from intracellular to neuronal circuit level. A complex model that describes the intracellular dynamics of the presynaptic terminal of a serotonergic neuron has been previously proposed. ...
Holzbach Andreas A Intstitute for Cognitive Systems (ICS), Technische Universität München, Munich, Germany, - - 2014
In this article, we present a neurologically motivated computational architecture for visual information processing. The computational architecture's focus lies in multiple strategies: hierarchical processing, parallel and concurrent processing, and modularity. The architecture is modular and expandable in both hardware and software, so that it can also cope with multisensory integrations ...
Ibragimov Bulat - - 2014
In this paper, we propose a novel approach to landmark-based shape representation that is based on transportation theory, where landmarks are considered as sources and destinations, all possible landmark connections as roads, and established landmark connections as goods transported via these roads. Landmark connections, which are selectively established, are identified ...
Kumar Ambuj A Bioinformatics Division, School of Bio Sciences and Technology, Vellore Institute of Technology University, Vellore, Tamil Nadu, - - 2014
Computational prediction of cancer associated SNPs from the large pool of SNP dataset is now being used as a tool for detecting the probable oncogenes, which are further examined in the wet lab experiments. The lack in prediction accuracy has been a major hurdle in relying on the computational results ...
Liu Song S Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan - - 2014
We propose a new method for detecting changes in Markov network structure between two sets of samples. Instead of naively fitting two Markov network models separately to the two data sets and figuring out their difference, we directly learn the network structure change by estimating the ratio of Markov network ...
Johnson Stephen B SB Department of Public Health, Weill Cornell Medical College, New York. Electronic address: - - 2014
Publications are a key data source for investigator profiles and research networking systems. We developed ReCiter, an algorithm that automatically extracts bibliographies from PubMed using institutional information about the target investigators. ReCiter executes a broad query against PubMed, groups the results into clusters that appear to constitute distinct author identities ...
Kosalagood Pasupen P Department of Radiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, - - 2014
Information regarding linear accuracy is necessary for efficient treatment evaluation, especially for maxillofacial reconstruction or implants. To investigate the accuracy of linear measurements from multiple cone beam computed tomography (CBCT) devices. A RANDO® phantom was scanned with eight CBCT scanners (11 modes). The viewing software accompanying each scanner was employed ...
Joe Paula S PS a Department of Environmental Health Sciences , University of Alabama at - - 2014
Abstract In 2010, NIOSH published new digital headform models based on their recently updated fit test panel. The new panel, based on the 2000 census to better represent the modern workforce, created 2 additional sizes: Short/Wide and Long/Narrow. While collecting the anthropometric data that comprised the panel, additional three-dimensional data ...
Larsen Camilla Marie CM Department of Sports Science and Clinical Biomechanics, University of Southern Denmark , Odense , Denmark - - 2014
Abstract The aims were to compile a schematic overview of clinical scapular assessment methods and critically appraise the methodological quality of the involved studies. A systematic, computer-assisted literature search using Medline, CINAHL, SportDiscus and EMBASE was performed from inception to October 2013. Reference lists in articles were also screened for ...
Chakraborty Sumantra - - 2014
An interval type-2 fuzzy set (IT2 FS) is characterized by its upper and lower membership functions containing all possible embedded fuzzy sets, which together is referred to as the footprint of uncertainty (FOU). The FOU results in a span of uncertainty measured in the defuzzified space and is determined by ...
Bai Shiyang S LSEC, Institute of Computational Mathematics and Scientific/Engineering Computing, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, China. Electronic address: - - 2014
This paper describes the design and function of a visualization tool, VCMM, for visualizing and analyzing data, and interfacing solvers for generic continuum molecular modeling. In particular, an emphasis of the program is to treat the data set based on unstructured mesh as used in finite/boundary element simulations, which largely ...
Caiazzo Alfonso A WIAS Berlin, Mohrenstrasse 39, Berlin, - - 2014
An association of stenotic internal jugular veins (IJVs) to anomalous cerebral venous hemodynamics and Multiple Sclerosis has been recently hypothesized. In this work, we set up a computational framework to assess the relevance of IJV stenoses through numerical simulation, combining medical imaging, patient-specific data and a mathematical model for venous ...
Yuan Qi Q School of Information Science and Engineering, Shandong University, Jinan 250100, P. R. China , Suzhou Institute of Shandong University, Suzhou 215123, P. R. - - 2014
The automatic identification of epileptic EEG signals is significant in both relieving heavy workload of visual inspection of EEG recordings and treatment of epilepsy. This paper presents a novel method based on the theory of sparse representation to identify epileptic EEGs. At first, the raw EEG epochs are preprocessed via ...
Menicucci Nicolas C NC School of Physics, The University of Sydney, Sydney, New South Wales 2006, - - 2014
A long-standing open question about Gaussian continuous-variable cluster states is whether they enable fault-tolerant measurement-based quantum computation. The answer is yes. Initial squeezing in the cluster above a threshold value of 20.5 dB ensures that errors from finite squeezing acting on encoded qubits are below the fault-tolerance threshold of known qubit-based ...
Jover Jesús J Departament de Química Inorgànica, Universitat de Barcelona, Av. Diagonal 645, 08028, Barcelona - - 2014
Computational studies, especially those that use density functional theory (DFT), have become pervasive in the characterization, mechanistic study, and optimization of homogeneous organometallic catalysts, and the "rational" design of such catalysts seems within reach once more. But how advanced, user-friendly, and reliable are the computational tools that are currently available? ...
McNally Kevin K Health and Safety Laboratory (HSL), Harpur Hill, Buxton, Derbyshire SK17 9JN, - - 2014
This paper describes a Bayesian model for the assessment of inhalation exposures in an occupational setting; the methodology underpins a freely available web-based application for exposure assessment, the Advanced REACH Tool (ART). The ART is a higher tier exposure tool that combines disparate sources of information within a Bayesian statistical ...
Tanaka Emi E School of Mathematics and Statistics, The University of Sydney, Sydney, NSW - - 2014
With over 9000 unique users recorded in the first half of 2013 MEME is one of the most popular motif finding tools available. Reliable estimates of the statistical significance of motifs can greatly increase the usefulness of any motif finder. By analogy, it is difficult to imagine evaluating a BLAST ...
Solazzo E E European Commission, Joint Research Centre, Institute for Environment and Sustainability, Air and Climate Unit, Ispra, - - 2014
In this paper we analyse the properties of an eighteen-member ensemble generated by the combination of five atmospheric dispersion modelling systems and six meteorological data sets. The models have been applied to the total deposition of (137)Cs, following the nuclear accident of the Fukushima power plant in March 2011. Analysis ...
Challacombe Matt M Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, - - 2014
We report an N-Body approach to computing the Fock exchange matrix with and without permutational symmetry. The method achieves an O(NlgN) computational complexity through an embedded metric-query, allowing hierarchical application of direct SCF criteria. The advantages of permutational symmetry are found to be 4-fold for small systems, but decreasing with ...
Fang Xicheng X 1Department of Statistics and Applied Probability, National University of Singapore, - - 2014
Mixed-effects models are increasingly used in many areas of applied science. Despite their popularity, there is virtually no systematic approach for examining the homogeneity of the random-effects covariance structure commonly assumed for such models. We propose two tests for evaluating the homogeneity of the covariance structure assumption across subjects: one ...
Alexandridis Alex A Department of Electronics, Technological Educational Institute of Athens, Agiou Spiridonos, Aigaleo 12210, Greece. Electronic address: - - 2014
The profusion of data accumulating in the form of medical records could be of great help for developing medical decision support systems. The objective of this paper is to present a methodology for designing data-driven medical diagnostic tools based on neural network classifiers. The proposed approach adopts the radial basis ...
Dayan Peter P Gatsby Computational Neuroscience Unit, University College London, London, UK, - - 2014
Evidence supports at least two methods for learning about reward and punishment and making predictions for guiding actions. One method, called model-free, progressively acquires cached estimates of the long-run values of circumstances and actions from retrospective experience. The other method, called model-based, uses representations of the environment, expectations, and prospective ...
McCarty Catherine A - - 2014
The purpose of this manuscript is to describe the PhenX RISING network and the site experiences in the implementation of PhenX measures into ongoing population-based genomic studies. Eighty PhenX measures were implemented across the seven PhenX RISING groups, thirty-three of which were used at more than two sites, allowing for ...
Lewis Richard L RL Department of Psychology, University of - - 2014
We propose a framework for including information-processing bounds in rational analyses. It is an application of bounded optimality (Russell & Subramanian, 1995) to the challenges of developing theories of mechanism and behavior. The framework is based on the idea that behaviors are generated by cognitive mechanisms that are adapted to ...
Sand Andreas A Bioinformatics Research Centre, Aarhus University, - - 2014
tqDist is a software package for computing the triplet and quartet distances between general rooted or unrooted trees, respectively. The program is based on algorithms with running time O(n log n) for the triplet distance calculation and O(d · n log n) for the quartet distance calculation, where n is ...
Latimer Shane S School of Social Sciences and Psychology, University of Western Sydney, Penrith, New South Wales, - - 2014
The purpose of this study was to investigate the application of item banking to questionnaire items intended to measure Deliberate Self-Harm (DSH) behaviours. The Rasch measurement model was used to evaluate behavioural items extracted from seven published DSH scales administered to 568 Australians aged 18-30 years (62% university students, 21% ...
Gaspers Judith J Center of Excellence Cognitive Interaction Technology, Bielefeld - - 2014
According to usage-based approaches to language acquisition, linguistic knowledge is represented in the form of constructions-form-meaning pairings-at multiple levels of abstraction and complexity. The emergence of syntactic knowledge is assumed to be a result of the gradual abstraction of lexically specific and item-based linguistic knowledge. In this article, we explore ...
Bartels Ward W a Department of Mechanical Engineering , Katholieke Universiteit Leuven , Leuven , - - 2014
Hip joint moments are an important parameter in the biomechanical evaluation of orthopaedic surgery. Joint moments are generally calculated using scaled generic musculoskeletal models. However, due to anatomical variability or pathology, such models may differ from the patient's anatomy, calling into question the accuracy of the resulting joint moments. This ...
Altarelli Fabrizio F DISAT and Center for Computational Sciences, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy and Collegio Carlo Alberto, Via Real Collegio 30, 10024 Moncalieri, - - 2014
We study several Bayesian inference problems for irreversible stochastic epidemic models on networks from a statistical physics viewpoint. We derive equations which allow us to accurately compute the posterior distribution of the time evolution of the state of each node given some observations. At difference with most existing methods, we ...
Tuarob Suppawong S Computer Science and Engineering, The Pennsylvania State University, University Park, PA 16802, - - 2014
The role of social media as a source of timely and massive information has become more apparent since the era of Web 2.0. Multiple studies illustrated the use of information in social media to discover biomedical and health-related knowledge. Most methods proposed in the literature employ traditional document classification techniques ...
Acosta-Mesa Héctor-Gabriel HG School of Physics and Artificial Intelligence, Department of Artificial Intelligence, Universidad Veracruzana, Sebastián Camacho # 5, 91000, Xalapa, Ver. México.. Electronic address: - - 2014
In this work, we present a novel application of time series discretization using evolutionary programming for classification of precancerous cervical lesions. The approach optimizes the number of intervals in which the length and amplitude of the time series should be compressed, preserving the important information for classification purposes. Using evolutionary ...
García-Pereira María Jesús MJ Departamento de Bioquímica, Genética e Inmunología, Facultad de Biología, Universidad de Vigo, 36310 Vigo, Spain. Electronic address: - - 2014
Deep coalescence and the nongenealogical pattern of descent caused by recombination have emerged as a common problem for phylogenetic inference at the species level. Here we use computer simulations to assess whether AFLP-based phylogenies are robust to the uncertainties introduced by these factors. Our results indicate that phylogenetic signal can ...
Embleton Nina N School of Mathematics, University of Birmingham, Birmingham, B15 2TT, UK, - - 2014
Evaluation of pest abundance is an important task of integrated pest management. It has recently been shown that evaluation of pest population size from discrete sampling data can be done by using the ideas of numerical integration. Numerical integration of the pest population density function is a computational technique that ...
Bielejec Filip F Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, - - 2014
Molecular phylogenetic and phylogeographic reconstructions generally assume time-homogeneous substitution processes. Motivated by computational convenience, this assumption sacrifices biological realism and offers little opportunity to uncover the temporal dynamics in evolutionary histories. Here, we propose an evolutionary approach that explicitly relaxes the time-homogeneity assumption by allowing the specification of different infinitesimal ...
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