Results 401  450 of 3177  
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Steyn R R Department of Nuclear Medicine, Groote Schuur Hospital, University of Cape Town, South   2014
To determine how two software packages, supplied by Siemens and Hermes, for processing gated blood pool (GBP) studies should be used in our department and whether the use of different cameras for the acquisition of raw data influences the results. The study had two components. For the first component, 200 ...


Azmi Aqil M AM Department of Computer Science, College of Computer & Information Sciences, King Saud University, Riyadh, Saudi   2014
A major task in computational biology is the discovery of short recurring string patterns known as motifs. Most of the schemes to discover motifs are either stochastic or combinatorial in nature. Stochastic approaches do not guarantee finding the correct motifs, while the combinatorial schemes tend to have an exponential time ...


Hou Hailong H 0000000332503967 School of Mathematics and Statistics, Henan University of Science and Technology, Luoyang, Henan 471003,   2014
A graph X is said to be Endcompletelyregular (resp., Endinverse) if its endomorphism monoid End(X) is completely regular (resp., inverse). In this paper, we will show that if X[Y] is Endcompletelyregular (resp., Endinverse), then both X and Y are Endcompletelyregular (resp., Endinverse). We give several approaches to construct new Endcompletelyregular ...


Horsley Alex A Institute of Inflammation and Repair, University of Manchester, Manchester, United Kingdom; Manchester Adult Cystic Fibrosis Centre, University Hospital of South Manchester, Manchester, United   2014
The Innocor device contains a highly sensitive photoacoustic gas analyser that has been used to perform multiple breath washout (MBW) measurements using very low concentrations of the tracer gas SF6. Use in smaller subjects has been restricted by the requirement for a gas analyser response time of <100 ms, in ...


Wang Wei W Key Lab of GIScience, Education Ministry of China, East China Normal University, Shanghai,   2014
The pixel purity index (PPI) and twodimensional (2D) scatter plots are two popular techniques for endmember extraction in remote sensing spectral mixture analysis, yet both suffer from one major drawback, that is, the selection of a final set of endmembers has to endure a cumbersome process of iterative visual inspection ...


Huan Mei M MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044,   2014
The paper proposed a model for estimating waiting endurance times of electric twowheelers at signalized intersections using survival analysis method. Waiting duration times were collected by video cameras and they were assigned as censored and uncensored data to distinguish between normal crossing and redlight running behavior. A Cox proportional hazard ...


Ren Yong Y College of Communication Engineering, Chongqing University, Chongqing 400044, China.   2014
This paper proposes an approach for measuring the azimuth angle and tilt angle of underground drilling tools with a MEMS threeaxis accelerometer and a threeaxis fluxgate sensor. A mathematical model of well logging attitude angle is deduced based on combining space coordinate transformations and algebraic equations. In addition, a system ...


Wang Jimin J College of Computer & Information, Hohai University, Nanjing 210098,   2014
Multivariate time series (MTS) datasets are very common in various financial, multimedia, and hydrological fields. In this paper, a dimensioncombination method is proposed to search similar sequences for MTS. Firstly, the similarity of singledimension series is calculated; then the overall similarity of the MTS is obtained by synthesizing each of ...


Liu XianFang XF Department of Mathematics, Chongqing Higher Education Mega Center, Chongqing Normal University, Huxi Campus, Chongqing 401331,   2014
We obtain an expectation formula and give the probabilistic proofs of some summation and transformation formulas of qseries based on our expectation formula. Although these formulas in themselves are not the probability results, the proofs given are based on probabilistic concepts.


Liu Yan Xia YX College of Automation, Beijing Union University, Beijing 100101, China.   2014
A complete error calibration model with 12 independent parameters is established by analyzing the threeaxis magnetometer error mechanism. The said model conforms to an ellipsoid restriction, the parameters of the ellipsoid equation are estimated, and the ellipsoid coefficient matrix is derived. However, the calibration matrix cannot be determined completely, as ...


DrzałGrabiec Justyna J Institute of Physiotherapy, University of Rzeszów, 26 Warszawska Street, 35205 Rzeszów,   2014
Introduction. The aim of this study was to evaluate the compatibility of external measurements of parameters characterizing scoliosis using the photogrammetric method. Material. The study involved 120 children between the ages of 7 and 11 years in Podkarpackie (Poland). Method. Measurements of body posture characteristics were performed using the photogrammetric ...


Pietro Cipresso C Applied Technology for NeuroPsychology Laboratory (IRCCS Istituto Auxologico Italiano), Via Pellizza da Volpedo 41, 20149 Milan,   2014
Everyone is interested in the pursuit of happiness, but the real problem for the researchers is how to measure it. Our aim was to deeply investigate happiness measurement through biomedical signals, using psychophysiological methods to objectify the happiness experiences measurements. The classic valencearousal model of affective states to study happiness ...


Rhee MooYong MY Cardiovascular Center, Dongguk University Ilsan Hospital, 27 Donggukro, Ilsandonggu, Goyangsi, Gyeonggi 410773, Korea.   2014
The present study evaluated the reliability of equations using spot urine (SU) samples in the estimation of 24hour urine sodium excretion (24HUNa). Equations estimating 24HUNa from SU samples were derived from firstmorning SU of 101 participants (52.4 ± 11.1 years, range 2470 years). Equations developed by us and other investigators ...


Fateen SeifEddeen K SE Department of Chemical Engineering, Cairo University, Giza 12316,   2014
The search for reliable and efficient global optimization algorithms for solving phase stability and phase equilibrium problems in applied thermodynamics is an ongoing area of research. In this study, we evaluated and compared the reliability and efficiency of eight selected natureinspired metaheuristic algorithms for solving difficult phase stability and phase ...


Abdul Razak Fatimah F Complexity & Networks Group and Department of Mathematics, Imperial College London, London, United Kingdom; School of Mathematical Sciences, Faculty of Science & Technology, Universiti Kebangsaan Malaysia, Bangi, Selangor,   2014
'Causal' direction is of great importance when dealing with complex systems. Often big volumes of data in the form of time series are available and it is important to develop methods that can inform about possible causal connections between the different observables. Here we investigate the ability of the Transfer ...


Qu Zhaowei Z College of Transportation, Jilin University, Changchun 130022,   2014
To estimate the capacity of roundabouts more accurately, the priority rank of each stream is determined through the classification technique given in the Highway Capacity Manual 2010 (HCM2010), which is based on macroscopical analysis of the relationship between entry flow and circulating flow. Then a conflict matrix is established using ...


Zhu Ailing A School of Mathematical Sciences, Shandong Normal University, Jinan 250014,   2014
We present the semidiscrete and the backward Euler fully discrete discontinuous mixed covolume schemes for parabolic problems on triangular meshes. We give the error analysis of the discontinuous mixed covolume schemes and obtain optimal order error estimates in discontinuous H(div) and firstorder error estimate in L (2).


VázquezAlcocer Alan A Centro de Investigación en Matemáticas, Guanajuato, Guanajuato,   2014
One of the most important steps in biomedical longitudinal studies is choosing a good experimental design that can provide high accuracy in the analysis of results with a minimum sample size. Several methods for constructing efficient longitudinal designs have been developed based on power analysis and the statistical model used ...


Chaiwatpongsakorn Chaichana C Department of Biomedical, Chemical, and Environmental Engineering, University of Cincinnati, 2901 Woodside Dr., Cincinnati, OH 45221, USA.   2014
Wireless sensor networks are becoming increasingly important as an alternative solution for environment monitoring because they can reduce cost and complexity. Also, they can improve reliability and data availability in places where traditional monitoring methods are difficult to site. In this study, a carbon monoxide wireless sensor network (COWSN) was ...


Yang Yingxiang Y Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139,   2014
The estimation of commuting flows at different spatial scales is a fundamental problem for different areas of study. Many current methods rely on parameters requiring calibration from empirical trip volumes. Their values are often not generalizable to cases without calibration data. To solve this problem we develop a statistical expression ...


Wu Jibo J 0000000162336704 Department of Mathematics and KLDAIP, Chongqing University of Arts and Sciences, Chongqing 402160,   2014
We introduce an unbiased twoparameter estimator based on prior information and twoparameter estimator proposed by Özkale and Kaçıranlar, 2007. Then we discuss its properties and our results show that the new estimator is better than the twoparameter estimator, the ordinary least squares estimator, and explain the almost unbiased twoparameter estimator ...


Zhao Zhibiao Z Penn State   2014
We study nonparametric regression function estimation for models with strong dependence. Compared with shortrange dependent models, longrange dependent models often result in slower convergence rates. We propose a simple differencingsequence based nonparametric estimator that achieves the same convergence rate as if the data were independent. Simulation studies show that the ...


Vashisht Priyanka P Department of Computer Science and Engineering, Amity School of Engineering and Technology, Bijwasan, New Delhi 110061,   2014
In data grids scientific and business applications produce huge volume of data which needs to be transferred among the distributed and heterogeneous nodes of data grids. Data replication provides a solution for managing data files efficiently in large grids. The data replication helps in enhancing the data availability which reduces ...


Mondani Hernan H Department of Sociology, Stockholm University, Stockholm,   2014
Organizational growth processes have consistently been shown to exhibit a fatterthanGaussian growthrate distribution in a variety of settings. Long periods of relatively small changes are interrupted by sudden changes in all size scales. This kind of extreme events can have important consequences for the development of biological and socioeconomic systems. ...


Hoque Faika F 0000000156411229 School of Electrical Engineering, University of Ulsan, Ulsan 680749, Republic of   2014
This paper proposes an effective warning message forwarding scheme for cooperative collision avoidance. In an emergency situation, an emergencydetecting vehicle warns the neighbor vehicles via an emergency warning message. Since the transmission range is limited, the warning message is broadcast in a multihop manner. Broadcast packets lead two challenges to ...


Lee Sanghyuk S 0000000302536936 Department of Electrical and Electronic Engineering, Xi'an JiaotongLiverpool University, Suzhou 215123,   2014
Research on fault detection algorithm was developed with the similarity measure and random forest algorithm. The organized algorithm was applied to unmanned aircraft vehicle (UAV) that was readied by us. Similarity measure was designed by the help of distance information, and its usefulness was also verified by proof. Fault decision ...


Cardenas Valerie A VA Neurobehavioral Research, Inc., Ala Moana Pacific Center, 1585 Kapiolani Blvd., Suite 1030, Honolulu, HI 96814,   2014
To validate an automated cerebellar segmentation method based on active shape and appearance modeling and then segment the cerebellum on images acquired from adolescents with histories of prenatal alcohol exposure (PAE) and nonexposed controls (NC). Automated segmentations of the total cerebellum, right and left cerebellar hemispheres, and three vermal lobes ...


Bruza Peter P Science and Engineering Faculty, Information Systems School, Queensland University of Technology Brisbane, QLD,   2014
This article presents a study of how humans perceive and judge the relevance of documents. Humans are adept at making reasonably robust and quick decisions about what information is relevant to them, despite the ever increasing complexity and volume of their surrounding information environment. The literature on document relevance has ...


Rosso Abbey A National Park Service, Winthrop, Washington, United States of   2014
Terrestrial lichen biomass is an important indicator of forage availability for caribou in northern regions, and can indicate vegetation shifts due to climate change, air pollution or changes in vascular plant community structure. Techniques for estimating lichen biomass have traditionally required destructive harvesting that is painstaking and impractical, so we ...


Daneshmand Saeed S Department of Geomatics Engineering, University of Calgary, Schulich School of Engineering, Position Location and Navigation (PLAN) Group, 2500 University Drive, N.W., Calgary, AB T2N 1N4, Canada.   2014
The use of global navigation satellite system (GNSS) antenna arrays for applications such as interference countermeasure, attitude determination and signaltonoise ratio (SNR) enhancement is attracting significant attention. However, precise antenna array calibration remains a major challenge. This paper proposes a new method for calibrating a GNSS antenna array using live ...


Kume Keiichiro K 0000000204444739 Third Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 11 Iseigaoka, Yahatanishiku, Kitakyushu 8078555,   2014
Background. Although the size of colon polyps is an important risk factor for colorectal cancer, a standardized measurement technique has yet to be determined. In clinical practice, most endoscopists estimate polyp size by uncertain visual estimation; however, colonoscopic polypectomy is indicated for adenomatous polyps more than 5 mm in diameter. We ...


Guan Qiu Q College of Computer Science, Zhejiang University of Technology, Hangzhou 310023,   2014
Scalp soft tissue expansion is one of the key medical techniques to generate new skin tissue for correcting various abnormalities and defects of skin in plastic surgery. Therefore, it is very important to work out the appropriate approach to evaluate the increase of expanded scalp area and to predict the ...


Gao Wei W School of Information Science and Technology, Yunnan Normal University, Kunming 650500,   2014
A graph G is called a fractional (g, f)deleted graph if G  {e} admits a fractional (g, f)factor for any e ∈ E(G). A graph G is called a fractional (g, f, n)critical deleted graph if, after deleting any n vertices from G, the resulting graph is still a ...


Wu Lingfei L Baidu Inc., Baidu Campus, Haidian District, Beijing, P. R. China; School of Human Evolution and Social Change, Arizona State University, Tempe, Arizona, United States of America; Center for the Study of Institutional Diversity, Arizona State University, Tempe, Arizona, United States of   2014
We view web forums as virtual living organisms feeding on user's clicks and investigate how they grow at the expense of clickstreams. We find that [Formula: see text] (the number of page views in a given time period) and [Formula: see text] (the number of unique visitors in the time ...


Reidpath Daniel D DD South East Asia Community Observatory (SEACO), Monash University, Bandar Sunway, Malaysia ; Global Public Health, School of Medicine and Health Sciences, Monash University, Bandar Sunway,   2014
Measures of household socioeconomic position (SEP) are widely used in health research. There exist a number of approaches to their measurement, with Principal Components Analysis (PCA) applied to a basket of household assets being one of the most common. PCA, however, carries a number of assumptions about the distribution of ...


Magis David D Department of Education (B32), University of Liege, Boulevard du Rectorat 5, 4000 Liege, Belgium,   2014
The Infit mean square W and the Outfit mean square U are commonly used person fit indexes under Rasch measurement. However, they suffer from two major weaknesses. First, their asymptotic distribution is usually derived by assuming that the true ability levels are known. Second, such distributions are even not clearly ...


Jaber Abobaker M AM School of Mathematical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang,   2014
This paper mainly forecasts the daily closing price of stock markets. We propose a twostage technique that combines the empirical mode decomposition (EMD) with nonparametric methods of local linear quantile (LLQ). We use the proposed technique, EMDLLQ, to forecast two stock index time series. Detailed experiments are implemented for the ...


Jung KyungMi KM Institute of Marine Research (IMR) and Hjort Centre for Marine Ecosystem Dynamics, Bergen, Norway; Department of Biology, University of Bergen, Bergen,   2014
It is generally accepted that the high buoyancy of pelagic marine eggs is due to substantial influx of water across the cell membrane just before ovulation. Here we further develop the theoretical basis by applying laboratory observations of the various components of the fertilized egg in firstprinciple equations for egg ...


Louk Maya M Department of Ubiquitous IT, Graduate School of Dongseo University, SasangGu, Busan 617716, Republic of   2014
There are many malware applications in Smartphone. Smartphone's users may become unaware if their data has been recorded and stolen by intruders via malware. Smartphonewhether for business or personal usemay not be protected from malwares. Thus, monitoring, detecting, tracking, and notification (MDTN) have become the main purpose of the writing ...


Chebrolu Venkata V VV Department of Biomedical Engineering, University of WisconsinMadison, Madison, WI 53706, USA ; Department of Human Oncology, University of WisconsinMadison, Madison, WI 53792, USA ; Wisconsin Institute of Medical Research, 1111 Highland Avenue, Madison, WI 53705,   2014
Purpose. To achieve rapid automated delineation of gross target volume (GTV) and to quantify changes in volume/position of the target for radiotherapy planning using fourdimensional (4D) CT. Methods and Materials. Novel morphological processing and successive localization (MPSL) algorithms were designed and implemented for achieving autosegmentation. Contours automatically generated using MPSL ...


Webb Benjamin B University of California at San Francisco, San Francisco,   2014
Functional characterization of a protein sequence is one of the most frequent problems in biology. This task is usually facilitated by accurate threedimensional (3D) structure of the studied protein. In the absence of an experimentally determined structure, comparative or homology modeling can sometimes provide a useful 3D model for a ...


AUTOMUTE 2.0: A Portable Framework with Enhanced Capabilities for Predicting Protein Functional ...
Masso Majid M Laboratory for Structural Bioinformatics, School of Systems Biology, George Mason University, Manassas, VA 20110,   2014
The AUTOMUTE 2.0 standalone software package includes a collection of programs for predicting functional changes to proteins upon single residue substitutions, developed by combining structurebased features with trained statistical learning models. Three of the predictors evaluate changes to protein stability upon mutation, each complementing a distinct experimental approach. Two additional ...


Chen Jing J National Heart, Lung and Blood Institute, National Institutes of Health, 50 South Drive, Building 50, Room 3306, Bethesda, Maryland 20892,   2014
The spindle assembly checkpoint arrests mitotic progression until each kinetochore secures a stable attachment to the spindle. Despite fluctuating noise, this checkpoint remains robust and remarkably sensitive to even a single unattached kinetochore among many attached kinetochores; moreover, the checkpoint is silenced only after the final kinetochorespindle attachment. Experimental observations ...


Liu Hao H Nanjing University of Aeronautics and Astronautics, P.R. China Jinling Hospital, Department Orthopedics, Nanjing University School of Medicine, P.R.   2014
Separation of the femur head and acetabulum is one of main difficulties in the diseased hip joint due to deformed shapes and extreme narrowness of the joint space. To improve the segmentation accuracy is the key point of existing automatic or semiautomatic segmentation methods. In this paper, we propose a ...


Kuhapatanakul Kantaphon K Department of Mathematics, Faculty of Science, Kasetsart University, Bangkok,   2014
Recently Holliday and Komatsu extended the results of Ohtsuka and Nakamura on reciprocal sums of Fibonacci numbers to reciprocal sums of generalized Fibonacci numbers. The aim of this work is to give similar results for the alternating sums of reciprocals of the generalized Fibonacci numbers with indices in arithmetic progression. ...


Yan Luchun L School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Xueyuan Road 30, Haidian District, Beijing 100083, China.   2014
A novel odor interaction model was proposed for binary mixtures of benzene and substituted benzenes by a partial differential equation (PDE) method. Based on the measurement method (tangentintercept method) of partial molar volume, original parameters of corresponding formulas were reasonably displaced by perceptual measures. By these substitutions, it was possible ...


Ke Shengnan S School of Software, Jiangxi Normal University, Nanchang 330022, China.   2014
In recent years, there has been tremendous growth in the field of indoor and outdoor positioning sensors continuously producing huge volumes of trajectory data that has been used in many fields such as locationbased services or location intelligence. Trajectory data is massively increased and semantically complicated, which poses a great ...


Smith Jeremy D JD School of Sport & Exercise Science, University of Northern Colorado;   2014
The purpose of this study was twofold: (1) demonstrate a technique that can be used to directly estimate the inertial properties of a belowknee prosthesis, and (2) contrast the effects of the proposed technique and that of using intact limb inertial properties on joint kinetic estimates during walking in unilateral, ...


Suh Young Soo YS Department of Electrical Engineering, University of Ulsan, Namgu 680749, Ulsan, Korea.   2014
Locationdependent differences of ambient magnetic fields inside a building can be used to estimate location. In this paper, an inertial/magnetic sensor is attached to a belt position and its location is estimated using the ambient magnetic field. The walking distance is estimated using the linear relationship between the walking step ...


The consequences of ignoring measurement invariance for path coefficients in structural equation ...
Guenole Nigel N IBM Smarter Workforce Institute London, UK ; Institute of Management Studies, Goldsmiths, University of London London,   2014
We report a Monte Carlo study examining the effects of two strategies for handling measurement noninvariance  modeling and ignoring noninvariant items  on structural regression coefficients between latent variables measured with item response theory models for categorical indicators. These strategies were examined across four levels and three types of ...


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