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Aldababseh Mahmoud M Department of Electronic Engineering, Al-Quds University, P.O. Box 20002, Jerusalem, - - 2014
We address the problem of estimating time-varying fading channels in filter bank multicarrier (FBMC/OQAM) wireless systems based on pilot symbols. The standard solution to this problem is the least square (LS) estimator or the minimum mean square error (MMSE) estimator with possible adaptive implementation using recursive least square (RLS) algorithm ...
Wang Jinfeng J School of Statistics and Mathematics, Inner Mongolia University of Finance and Economics, Hohhot 010070, - - 2014
We propose and analyze a new expanded mixed element method, whose gradient belongs to the simple square integrable space instead of the classical H(div; Ω) space of Chen's expanded mixed element method. We study the new expanded mixed element method for convection-dominated Sobolev equation, prove the existence and uniqueness for finite ...
Rhodes Jonathan R JR School of Geography, Planning and Environmental Management, The University of Queensland, Brisbane, Queensland, Australia; ARC Centre of Excellence for Environmental Decisions, The University of Queensland, Brisbane, Queensland, Australia; NERP Environmental Decisions Hub, The University of Queensland, Brisbane, Queensland, - - 2014
Roads and vehicular traffic are among the most pervasive of threats to biodiversity because they fragmenting habitat, increasing mortality and opening up new areas for the exploitation of natural resources. However, the number of vehicles on roads is increasing rapidly and this is likely to continue into the future, putting ...
Si Weijian W Department of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, - - 2014
A novel direction of arrival (DOA) estimation method in compressed sensing (CS) is presented, in which DOA estimation is considered as the joint sparse recovery from multiple measurement vectors (MMV). The proposed method is obtained by minimizing the modified-based covariance matching criterion, which is acquired by adding penalties according to ...
Santolaria Jorge J 0000-0001-7316-0003 Departamento de Ingeniería de Diseño y Fabricación, Edificio Torres Quevedo, EINA, Universidad de Zaragoza, 50018 Zaragoza, - - 2014
A new procedure for the calibration of an articulated arm coordinate measuring machine (AACMM) is presented in this paper. First, a self-calibration algorithm of four laser trackers (LTs) is developed. The spatial localization of a retroreflector target, placed in different positions within the workspace, is determined by means of a ...
Gupta Maneesha M Netaji Subhash Institute of Technology, Sector 3, Dwarka, New Delhi 110078, - - 2014
Different evolutionary algorithms (EAs), namely, particle swarm optimization (PSO), genetic algorithm (GA), and PSO-GA hybrid optimization, have been used to optimize digital differential operators so that these can be better fitted to exemplify their new improved fractional order differentiator counterparts. First, the paper aims to provide efficient 2nd and 3rd ...
Szpala Stanislaw S BC Cancer Agency (Fraser Valley Centre). - - 2014
Partial transmission through rounded leaf ends of Varian multileaf collimators (MLC) is accounted for with a parameter called the dosimetric leaf gap (DLG). Verification of the value of the DLG is needed when the dose delivery is accompanied by gantry rotation in VMAT plans. We compared the doses measured with ...
Kane Emily A EA Department of Biology, University of California, , 900 University Avenue, Riverside, CA 92521, - - 2014
Prey capture is critical for survival, and differences in correctly positioning and timing a strike (accuracy) are likely related to variation in capture success. However, an ability to quantify accuracy under natural conditions, particularly for fishes, is lacking. We developed a predictive model of suction hydrodynamics and applied it to ...
Yohannes S - - 2014
The association between physiologically dependent pharmacokinetic parameters (CL(B), T1/2beta, Vd(ss)) of marbofloxacin and body weight was studied in eight animal species based on allometric equation Y = aWb, where 'Y' is the pharmacokinetic parameter, 'W' is body weight, 'a' is allometric coefficient (intercept) and 'b' is the exponent that describes ...
Marković Dana D DD 0000-0002-6033-5457 Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, - - 2014
Numerous regression approaches to isotherm parameters estimation appear in the literature. The real insight into the proper modeling pattern can be achieved only by testing methods on a very big number of cases. Experimentally, it cannot be done in a reasonable time, so the Monte Carlo simulation method was applied. ...
Alves Gelio G National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, United States of - - 2014
Meta-analysis methods that combine [Formula: see text]-values into a single unified [Formula: see text]-value are frequently employed to improve confidence in hypothesis testing. An assumption made by most meta-analysis methods is that the [Formula: see text]-values to be combined are independent, which may not always be true. To investigate the ...
Park No-Wook NW 0000-0002-9778-3624 Department of Geoinformatic Engineering, Inha University, Incheon 402-751, Republic of - - 2014
This paper compares the predictive performance of different geostatistical kriging algorithms for intertidal surface sediment facies mapping using grain size data. Indicator kriging, which maps facies types from conditional probabilities of predefined facies types, is first considered. In the second approach, grain size fractions are first predicted using cokriging and ...
Penin Alexandr A 0000-0002-3127-2979 "D. Ghitu" Institute of Electronic Engineering and Nanotechnologies, Academy of Sciences of Moldova, Academiei Street 3/3, 2028 Chisinau, - - 2014
The droop current-sharing method for voltage sources of a limited capacity is considered. Influence of equalizing resistors and load resistor is investigated on uniform distribution of relative values of currents when the actual loading corresponds to the capacity of a concrete source. Novel concepts for quantitative representation of operating regimes ...
Lotfi Taher T Department of Mathematics, Hamedan Branch, Islamic Azad University, Hamedan 68138, - - 2014
It is attempted to present an efficient and free derivative class of Steffensen-like methods for solving nonlinear equations. To this end, firstly, we construct an optimal eighth-order three-step uniparameter without memory of iterative methods. Then the self-accelerator parameter is estimated using Newton's interpolation in such a way that it improves ...
Liu Yang Y 0000-0001-8218-0196 School of Mathematical Sciences, Inner Mongolia University, Hohhot 010021, - - 2014
A kind of new mixed element method for time-fractional partial differential equations is studied. The Caputo-fractional derivative of time direction is approximated by two-step difference method and the spatial direction is discretized by a new mixed element method, whose gradient belongs to the simple (L (2)(Ω)(2)) space replacing the complex ...
Dostbil Zeki Z Department of Nuclear Medicine, Faculty of Medicine, Dicle University, 21280 Diyarbakir, - - 2014
Objectives. The measurement of mucociliary transport velocity by rhinoscintigraphy with Tc-99m-macroaggregated albumin ((99m)Tc-MAA) is reliable measure of mucociliary clearance. The aim of this study is to assess the intratest, interobserver, and intraobserver reproducibility of nasal mucociliary transport rate (NMTR) measurement. Materials and Methods. Twenty-two subjects were evaluated to determine intratest ...
Tange Julie I JI Department of Laboratory Medicine and Pathology, Mayo Clinic Rochester, - - 2013
Warfarin dosing relies on accurate measurements of international normalized ratio (INR), which is calculated from the prothrombin time (PT), International Sensitivity Index international sensitivity index (ISI) of the thromboplastin, and the geometric mean of normal PT (MNPT). However, ISI assignments of certain reagent/instrument combinations are frequently unavailable, especially when the ...
McMurphy Timothy B TB Department of Biomedical Materials Science, University of Mississippi Medical Center, Jackson, MS, - - 2013
To develop a method, which is precise, accurate, and insensitive to the angle of inclination for determining the fractal dimensional increment (D*) of a surface. Brownian interpolation was used to generate simulated ceramic fracture surfaces having known D* values of 0.1, 0.2, 0.3, and 0.4 with 10 surfaces at each ...
Liang Tai-Ran TR Department of Physics, Nankai University, Tianjin 300071, - - 2013
The Chinese spallation neutron source (CSNS) is a high-performance pulsed neutron source, having 20 neutron beamlines for neutron scattering instruments. The shielding design of these beamlines is usually needed for Monte Carlo (MC) calculation, and the use of variance reduction methods is critical to carrying out an efficient, reliable MC ...
Brehm Wolfgang W Department of Biology, Universität Konstanz, Box 647, 78457 Konstanz, - - 2014
In serial crystallography, a very incomplete partial data set is obtained from each diffraction experiment (a `snapshot'). In some space groups, an indexing ambiguity exists which requires that the indexing mode of each snapshot needs to be established with respect to a reference data set. In the absence of such ...
Debin Marion - - 2013
Assessing the accuracy of influenza epidemic periods determined by statistical models is important to improve the performance of algorithms used in real-time syndromic surveillance systems. This is a difficult problem to address in the absence of a reliable gold standard. The objective of this study is to establish an expert-based ...
Unal Yavuz Y Education Faculty, Amasya University, Amasya, - - 2014
In this paper, an innovative data pre-processing method to improve the classification performance and to determine automatically the vertebral column disorders including disk hernia (DH), spondylolisthesis (SL) and normal (NO) groups has been proposed. In the classification of vertebral column disorders' dataset with three classes, a pairwise fuzzy C-means (FCM) ...
Göhring Janett J Max F. Perutz Laboratories, Medical University of Vienna, Vienna 1030, Austria, Gregor Mendel Institute, Vienna 1030, Austria, Institute for Applied Physics, Johannes Kepler University Linz, Linz 4040, Austria and Upper Austria University of Applied Sciences, Campus Linz, Linz 4020, - - 2013
Telomeres comprise the protective caps of natural chromosome ends and function in the suppression of DNA damage signaling and cellular senescence. Therefore, techniques used to determine telomere length are important in a number of studies, ranging from those investigating telomeric structure to effects on human disease. Terminal restriction fragment (TRF) ...
Gentsch Lydia L Institute of Agricultural Sciences, ETH Zurich, Universitatsstrasse 2, 8092 Zurich, Switzerland; INRA, UR1263 Ephyse, 33140 Villenave d'Ornon, - - 2013
Field measurements of photosynthetic carbon isotope discrimination ((13) Δ) of Fagus sylvatica, conducted with branch bags and laser spectrometry, revealed a high variability of (13) Δ, both on diurnal and day-to-day timescales. We tested the prediction capability of three versions of a commonly-used model for (13) Δ [called here comprehensive ...
Xu Wenxiang W Institute of Soft Matter Mechanics, College of Mechanics and Materials, Hohai University, Nanjing 210098, China. - - 2013
The effect of microstructures of interfacial layers on transport behaviors of particulate composites has been found to be significant, thus microstructural characteristics of interfacial layers should be considered in the analysis for better prediction of transport properties of particulate composites. However, it is very difficult to determine the volume fraction ...
Tellinghuisen Joel J Department of Chemistry, Vanderbilt University, Nashville, Tennessee, USA 37235. Electronic address: - - 2013
New methods are used to compare seven qPCR analysis methods for their performance in estimating the quantification cycle (Cq) and amplification efficiency (E) for a large test data set (94 samples for each of 4 dilutions) from a recent study. Precision and linearity are assessed using chi-square (χ2), which is ...
Berivanlou Nima Hemmati NH Control and Intelligent Processing Center of Excellence, School of Electrical and Computer Engineering, College of Engineering, University of Tehran, Tehran, - - 2013
The quality of the functional near infrared spectroscopy (fNIRS) recordings is highly degraded by the presence of physiological interferences. It is crucial to efficiently separate the evoked hemodynamic responses (EHRs) from other background hemodynamic activities prior to any further processing. This paper presents a novel algorithm for physiological interferences reduction ...
Greve Douglas N DN Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, - - 2013
Exploratory (i.e., voxelwise) spatial methods are commonly used in neuroimaging to identify areas that show an effect when a region-of-interest (ROI) analysis cannot be performed because no strong a priori anatomical hypothesis exists. However, noise at a single voxel is much higher than noise in a ROI making noise management ...
Eder Maximilian M Research Group CAPS-Computer Aided Plastic Surgery, Department of Plastic Surgery and Hand Surgery, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, Munich, - - 2013
Biomechanical breast modeling using finite element (FE) analysis to predict 3-D breast deformations is of interest for various biomedical applications. Currently no consensus of reliable magnitudes of mechanical breast tissue properties exists. We therefore applied 12 material properties proposed in the literature to FE simulation models derived from prone MRI ...
Sinha Samiran S Department of Statistics, Texas A&M University, College Station, Texas 77843-3143, - - 2013
We take a semiparametric approach in fitting a linear transformation model to a right censored data when predictive variables are subject to measurement errors. We construct consistent estimating equations when repeated measurements of a surrogate of the unobserved true predictor are available. The proposed approach applies under minimal assumptions on ...
Schneider D D Clinic of Fixed and Removable Prosthodontics and Dental Material Science, Center of Dental Medicine, University of Zurich, - - 2013
The use of periodontal probes harbors the risk of measurement errors. The aim of this study was to investigate the accuracy of the digital determination of gingival recession and papilla height on virtual jaw models, given the hypothesis that they show lower intrarater and interrater variability than conventional linear measurements ...
McGinitie Teague M TM Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G2G2, - - 2013
A new method for estimating the thermodynamic parameters of ΔH(T0), ΔS(T0), and ΔCP for use in thermodynamic modeling of GC×GC separations has been developed. The method is an alternative to the traditional isothermal separations required to fit a three-parameter thermodynamic model to retention data. Herein, a non-linear optimization technique is ...
Prudhomme Christel C Centre for Ecology and Hydrology, Wallingford OX10 8BB, United - - 2013
Increasing concentrations of greenhouse gases in the atmosphere are expected to modify the global water cycle with significant consequences for terrestrial hydrology. We assess the impact of climate change on hydrological droughts in a multimodel experiment including seven global impact models (GIMs) driven by bias-corrected climate from five global climate ...
Hero Robert R University of California, Davis, - - 2013
In this paper, we present a high quality and interactive method for volume rendering curvilinear-grid datasets. This method is based on a two-stage parallel transformation of the sample position into intermediate computational space then into texture space through the use of multiple 1 and 2D deformation textures using hardware acceleration. ...
Dwyer Michael G MG Buffalo Neuroimaging Analysis Center, Department of Neurology, School of Medicine and Biomedical Science, University at Buffalo, State University of New York, Buffalo, NY, USA. Electronic address: - - 2013
SIENA and similar techniques have demonstrated the utility of performing "direct" measurements as opposed to post-hoc comparison of cross-sectional data for the measurement of whole brain (WB) atrophy over time. However, gray matter (GM) and white matter (WM) atrophy are now widely recognized as important components of neurological disease progression, ...
Murad Havi H 1Biostatistics Unit, Gertner Institute for Epidemiology and Health Policy Research, Tel-Hashomer, - - 2013
Assessing interactions in linear regression models when covariates have measurement error (ME) is complex.We previously described regression calibration (RC) methods that yield consistent estimators and standard errors for interaction coefficients of normally distributed covariates having classical ME. Here we extend normal based RC (NBRC) and linear RC (LRC) methods to ...
Grabowski T - - 2013
Regulatory agencies do not specify how to plan the sampling intervals in pharmacokinetics (PK) studies. Every interval between each sampling point forms one of the fractions of the area under the curve (AUC). The aim of this study is to propose a method of qualitative evaluation of PK studies, on ...
Hirve Siddhivinayak S Vadu Rural Health Program, KEM Hospital Research Center, Pune, India; Umeå Centre for Global Health Research, Division of Epidemiology and Global Health, Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden. Electronic address: - - 2013
We compared prevalence estimates of self-rated health (SRH) derived indirectly using four different small area estimation methods for the Vadu (small) area from the national Study on Global AGEing (SAGE) survey with estimates derived directly from the Vadu SAGE survey. The indirect synthetic estimate for Vadu was 24% whereas the ...
Kuhlmann Levin - - 2013
Bayesian spiking neurons (BSNs) provide a probabilistic interpretation of how neurons perform inference and learning. Online learning in BSNs typically involves parameter estimation based on maximum-likelihood expectation-maximization (ML-EM) which is computationally slow and limits the potential of studying networks of BSNs. An online learning algorithm, fast learning (FL), is presented ...
Chen Baojiang - - 2013
In statistical analysis, a regression model is needed if one is interested in finding the relationship between a response variable and covariates. When the response depends on the covariate, then it may also depend on the function of this covariate. If one has no knowledge of this functional form but ...
Grosswendt B - - 2013
The track nanodosemeter developed at the National Laboratories of Legnaro (LNL), Italy allows the direct investigation of the properties of particle tracks, by measuring ionisation-cluster-size distributions caused by ionising particles within a 'nanometre-sized' target volume while passing it at a well-specified impact parameter. To supplement the measurements, a dedicated Monte ...
Caruel M - - 2013
Complex 3D beating heart models are now available, but their complexity makes calibration and validation very difficult tasks. We thus propose a systematic approach of deriving simplified reduced-dimensional models, in "0D"-typically, to represent a cardiac cavity, or several coupled cavities-and in "1D"-to model elongated structures such as muscle samples or ...
Brocchini Maurizio M D.I.C.E.A. , Università Politecnica delle Marche , Via Brecce Bianche 12, 60131 Ancona, - - 2013
This paper, which is largely the fruit of an invited talk on the topic at the latest International Conference on Coastal Engineering, describes the state of the art of modelling by means of Boussinesq-type models (BTMs). Motivations for using BTMs as well as their fundamentals are illustrated, with special attention ...
Wang Kun - - 2013
Lopinavir (LPV)/ritonavir (RTV) co-formulation (LPV/RTV) is a widely used protease inhibitor (PI)-based regimen to treat HIV-infection. As with all PIs, the trough concentration (C trough) is a primary determinant of response, but the optimum exposure remains poorly defined. The primary objective was to develop an integrated LPV population pharmacokinetic model ...
Dutra José Diogo L - - 2013
In this study, we propose three different methods for calculation of Judd-Ofelt intensity parameters of poly-europium systems. The first, named Centroid Method, proposes the calculation considering the center of the dimeric system as the half distances between the two europium centers. The second method, called Overlapped Polyhedra Method, proposes the ...
Wagner S - - 2013
Objective. We investigate volume conduction effects in transcranial direct current stimulation (tDCS) and present a guideline for efficient and yet accurate volume conductor modeling in tDCS using our newly-developed finite element (FE) approach. Approach. We developed a new, accurate and fast isoparametric FE approach for high-resolution geometry-adapted hexahedral meshes and ...
Redal-Baigorri Belén - - 2013
Estimation of Glomerular Filtration Rate (GFR) by equations such as Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) or Modification of Diet in Renal Disease (MDRD) is usually expressed as a Body Surface Area (BSA) indexed value (ml/min per 1.73 m2). This can have severe clinical consequences in patients with extreme body ...
Camacho A A Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya, Avda. Diagonal, 647, 08028 Barcelona, Spain. Electronic address: - - 2013
The activities on air filters of the radionuclides (40)K and (137)Cs were measured in an above ground laboratory and compared with the activities measured in an underground laboratory. The average relative differences were lower than 20% for (137)Cs and (40)K. The temporal series of these radionuclides in the period 2006-2010 ...
Charman W Neil WN Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, - - 2013
Lens average and equivalent refractive indices are required for purposes such as lens thickness estimation and optical modeling. We modeled the refractive index gradient as a power function of the normalized distance from lens center. Average index along the lens axis was estimated by integration. Equivalent index was estimated by ...
Yuan Xiaoru - - 2013
For high-dimensional data, this work proposes two novel visual exploration methods to gain insights into the data aspect and the dimension aspect of the data. The first is a Dimension Projection Matrix, as an extension of a scatterplot matrix. In the matrix, each row or column represents a group of ...
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