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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 ...
Karabulut Esra Mahsereci EM Vocational High School of Higher Education, Gaziantep University, 27310, Gaziantep, - - 2014
This study develops a logistic model tree based automation system based on for accurate recognition of types of vertebral column pathologies. Six biomechanical measures are used for this purpose: pelvic incidence, pelvic tilt, lumbar lordosis angle, sacral slope, pelvic radius and grade of spondylolisthesis. A two-phase classification model is employed ...
De Momi E E Department of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano, Milan, Italy, - - 2014
StereoElectroEncephaloGraphy (SEEG) is done to identify the epileptogenic zone of the brain using several multi-lead electrodes whose positions in the brain are pre-operatively defined. Intracranial hemorrhages due to disruption of blood vessels can cause major complications of this procedure ([Formula: see text]1 %). In order to increase the intervention safety, we ...
Foruzan Amir H AH Department of Biomedical Engineering, Engineering Faculty, Shahed University, Tehran, Iran, - - 2014
Statistical shape models (SSMs) represent morphological variations of a specific object. When there are large shape variations, the shape parameters constitute a large space that may include incorrect parameters. The human liver is a non-rigid organ subject to large deformations due to external forces or body position changes during scanning ...
Pardo María Del Carmen MD Department of Statistics and O.R. (I), Faculty of Mathematics, Complutense University of Madrid, E-28040, Madrid, - - 2014
The generalized estimating equations (GEEs) method has become quite useful in modeling correlated data. However, diagnostic tools to check that the selected final model fits the data as accurately as possible have not been explored intensively. In this paper, an outlier detection technique is developed based on the use of ...
Shahid Syed Salman SS Research Center for Modeling and Simulation, National University of Sciences and Technology, Islamabad, Pakistan. School of Mechanical and Electrical Engineering, University of Southern Queensland, Toowoomba, QLD, - - 2014
Objectives. Computational methods are increasingly used to optimize transcranial direct current stimulation (tDCS) dose strategies and yet complexities of existing approaches limit their clinical access. Since predictive modelling indicates the relevance of subject/pathology based data and hence the need for subject specific modelling, the incremental clinical value of increasingly complex ...
Testa S S Haemostasis and Thrombosis Center, Department of Clinical Pathology, AO Istituti Ospitalieri, Cremona, - - 2014
Although most guidelines for quality assessment of INR PMs recommend specific procedures, no clear regulation or methodology is required for outpatients in our country. We have developed a specific INR portable monitor (PM) quality control system within our telemedicine organization to check over time quality performances and plan corrective actions. ...
Fosbøl Marie Ø MO Department of Clinical Physiology and Nuclear Medicine, Center of Functional and Diagnostic Imaging and Research, University of Copenhagen, Hvidovre Hospital, Hvidovre, - - 2014
Reliable and valid body composition assessment is important in both clinical and research settings. A multitude of methods and techniques for body composition measurement exist, all with inherent problems, whether in measurement methodology or in the assumptions upon which they are based. This review is focused on currently applied methods ...
Kumar Sivakumar Prasanth SP a Department of Bioinformatics, Applied Botany Centre (ABC) , Gujarat University , Ahmedabad 380009 , Gujarat , - - 2014
Quantitative pharmacophore hypothesis combines the 3D spatial arrangement of pharmacophore features with biological activities of the ligand data-set and predicts the activities of geometrically and/or pharmacophoric similar ligands. Most pharmacophore discovery programs face difficulties in conformational flexibility, molecular alignment, pharmacophore features sampling, and feature selection to score models if the ...
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 ...
Ferrie Christopher C Center for Quantum Information and Control, University of New Mexico, Albuquerque, New Mexico 87131-0001, - - 2014
In this Letter, we strengthen and extend the connection between simulation and estimation to exploit simulation routines that do not exactly compute the probability of experimental data, known as the likelihood function. Rather, we provide an explicit algorithm for estimating parameters of physical models given access to a simulator which ...
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 ...
Wixted John T JT Department of Psychology, University of California, San - - 2014
The theoretical understanding of eyewitness identifications made from a police lineup has long been guided by the distinction between absolute and relative decision strategies. In addition, the accuracy of identifications associated with different eyewitness memory procedures has long been evaluated using measures like the diagnosticity ratio (the correct identification rate ...
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 ...
Schrauwen J T C JT Department of Biomedical Engineering, Erasmus Medical Center, Rotterdam 3000CA, The Netherlands. Electronic address: - - 2014
Pressure drop (△p) estimations in human coronary arteries have several important applications, including determination of appropriate boundary conditions for CFD and estimation of fractional flow reserve (FFR). In this study a △p prediction was made based on geometrical features derived from patient-specific imaging data. Twenty-two mildly diseased human coronary arteries ...
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 ...
Sarotti Ariel M AM Instituto de Química de Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, S2002LRK Rosario, Argentina. Electronic address: - - 2014
A computational study was conducted to gain insight into the pyrolytic deformylations of levoglucosenone and isolevoglucosenone. Present B3LYP/6-31G(∗) and CBS-QB3 calculations provide valuable evidence to rule out the formation of isolevoglucosenone during the pyrolytic degradation of cellulosic materials. This, along with the supplementary data herein presented and with other recent ...
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 ...
Grigoryeva Lyudmila L Laboratoire de Mathématiques de Besançon, Université de Franche-Comté, UFR des Sciences et Techniques. 16, route de Gray. F-25030 Besançon Cedex, France. Electronic address: - - 2014
Reservoir computing is a recently introduced machine learning paradigm that has already shown excellent performances in the processing of empirical data. We study a particular kind of reservoir computers called time-delay reservoirs that are constructed out of the sampling of the solution of a time-delay differential equation and show their ...
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