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Zhao Chen C Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Nephrology, Guangzhou, 510080, - - 2014
Patients with continuous ambulatory peritoneal dialysis (CAPD) have high all-cause mortality risk that varies extensively among different conditions. The objective of this study was to develop and validate risk models to predict the 2-year all-cause mortality risks of CAPD patients. A total of 1,354 patients who received CAPD treatment >3 ...
Poullis Michael M Department of Cardiac Surgery, Liverpool Heart and Chest Hospital, Liverpool, UK - - 2014
EuroSCORE II, despite improving on the original EuroSCORE system, has not solved all the calibration and predictability issues. Recursive, non-linear and mixed recursive and non-linear regression analysis were assessed with regard to sensitivity, specificity and predictability of the original EuroSCORE and EuroSCORE II systems. The original logistic EuroSCORE, EuroSCORE II ...
Shahian David M DM Massachusetts General Hospital and Harvard Medical School, Boston, - - 2014
Early risk models in cardiac surgery focused exclusively on coronary artery bypass grafting surgery (CABG), using pre-procedural variables to estimate the likelihood of in-hospital or 30-day mortality. These models were initially developed to assess provider performance, but they have subsequently been used for patient counseling, shared decision-making, and a variety ...
Yu Tsung-Hsien - - 2014
Claims data has usually been used in recent studies to identify cases of healthcare-associated infection. However, several studies have indicated that the ICD-9-CM codes might be inappropriate for identifying such cases from claims data; therefore, several researchers developed alternative identification models to correctly identify more cases from claims data. The ...
Kötting Joachim J BQS Institute for Quality and Patient Safety, Düsseldorf, North Rhine-Westphalia, - - 2014
Background A specific risk model concerning mortality of patients undergoing isolated coronary artery bypass grafting (CABG) is developed based on the national quality benchmarking mandatory by law in Germany. Methods On the basis of the national data pool from 2004, a risk score model for patients undergoing isolated CABG was developed and ...
Ghavidel Alireza Alizadeh AA Heart Valve Disease Research Center, Rajaei Cardiovascular Medical and Research Center, Tehran, - - 2014
The aim of this study was to develop new models for prediction of short-term mortality risk in on-pump coronary artery bypass grafting (CABG) surgery using decision tree (DT) methods. Between September 2005 and April 2006, 948 consecutive patients underwent CABG surgery at Rajaie Heart Center. Potential risk factors were reviewed ...
Zheng Zhe - - 2013
This study aims to construct a logistically derived additive score for predicting in-hospital mortality risk in Chinese patients undergoing coronary artery bypass surgery (CABG). Data from 9839 consecutive CABG patients in 43 Chinese centers were collected between 2007 and 2008 from the Chinese Coronary Artery Bypass Grafting Registry. This database ...
Engoren Milo - - 2013
As many as 14 % of patients undergoing coronary artery bypass surgery are readmitted within 30 days. Readmission is usually the result of morbidity and may lead to death. The purpose of this study is to develop and compare statistical and genetic programming models to predict readmission. Patients were divided into separate ...
Wang Ming-Fu - - 2013
New synonymies and new combinations are proposed, based mainly on the study of type materials. They are as follows: Helina sarmentosa Fang & Fan, 1993 = Helina dianica Qian & Feng, 2005, syn. n.; Helina dianxiia Xue and Li, 2002 = Helina aureolicolorata Feng & Xue, 2002, syn. n.; Myospila ...
Ceyhan Elvan E Dept. of Mathematics, Koç University, 34450 Sariyer, Istanbul, Turkey. - - 2012
In this article, we use longitudinal morphometry (shape and size) measures of hippocampus in subjects with mild dementia of Alzheimer type (DAT) and nondemented controls in logistic discrimination. The morphometric measures we use are volume and metric distance measures at baseline and follow-up (two years apart from baseline). Morphometric differences ...
Barakat B - - 2012
The discovery of activin and inhibins as modulators of the hypothalamal-pituitary-gonadal axis has set the foundation for understanding their central importance to many facets of development and disease. This review contains an overview of the processes and cell types that are central to testis development and spermatogenesis and then provides ...
Zhusubaliyev Zhanybai T - - 2012
Complex nonlinear dynamics in a recent mathematical model of non-basal testosterone regulation are investigated. In agreement with biological evidence, the pulsatile (non-basal) secretion of testosterone is modeled by frequency and amplitude modulated feedback. It is shown that, in addition to already known periodic motions with one and two pulses in ...
Galán Severino F - - 2012
Abstract Genetic algorithms typically use crossover, which relies on mating a set of selected parents. As part of crossover, random mating is often carried out. A novel approach to parent mating is presented in this work. Our novel approach can be applied in combination with a traditional similarity-based criterion to ...
El-Fadel Mutasem - - 2012
This paper examines landfill gas (LFG) emissions at a large inactive waste disposal site to evaluate the viability of investment in LFG recovery through the clean development mechanism (CDM) initiative. For this purpose, field measurements of LFG emissions were conducted and the data were processed by geospatial interpolation to estimate ...
Binns Michael - - 2012
The study of pharmacophores, i.e. of common features between different ligands, is important for the quantitative identification of "compatible" enzymes and binding species. A pharmacophore-based technique is developed which combines multiple conformations with a distance geometry method to create flexible pharmacophore representations. It uses a set of low-energy conformations combined ...
Cassan A - - 2012
Most known extrasolar planets (exoplanets) have been discovered using the radial velocity or transit methods. Both are biased towards planets that are relatively close to their parent stars, and studies find that around 17-30% (refs 4, 5) of solar-like stars host a planet. Gravitational microlensing, on the other hand, probes ...
Highton Jamie M - - 2012
Highton, JM, Lamb, KL, Twist, C, and Nicholas, C. The reliability and validity of short-distance sprint performance assessed on a nonmotorized treadmill. J Strength Cond Res 26(X): 000-000, 2012-This study examined the interday and intraday reliabilities and validities of various sprint performance variables on a nonmotorized treadmill (NMT) over distances ...
Holden-Douilly Laurène - - 2012
This article describes a method that allows estimating, with the 2D version of the direct linear transformation (DLT), the actual 2D coordinates of a point when the latter is not strictly in the calibration plane. Markers placed in vertical line, above, below and in the centre of a horizontal calibration ...
Rodríguez-García José Antonio - - 2012
To estimate the incidence of acute leukemia (AL) in El Bierzo (BZ) and to carry out a cross-association analysis in order to suggest some etiological clues. We registered all new AL cases diagnosed 2000-2005. Annual standardized incidence rate (SIR) was calculated by the direct method. A cross-association analysis was performed ...
Tam Gary K L - - 2012
Due to the popularity of computer games and animation, research on 3D articulated geometry model retrieval is attracting a lot of attention in recent years. However, most existing works extract high dimensional features to represent models, which suffer from practical limitations. First, misalignment in high dimensional features may produce unreliable ...
Hearn Laurence K - - 2012
Passive air samplers (PAS) consisting of polyurethane foam (PUF) disks were deployed at 6 outdoor air monitoring stations in different land use categories (commercial, industrial, residential and semi-rural) to assess the spatial distribution of polybrominated diphenyl ethers (PBDEs) in the Brisbane airshed. Air monitoring sites covered an area of ∼1143 ...
Fukuyama Julia - - 2012
This article compares different methods for combining abundance data, phylogenetic trees and clinical covariates in a nonparametric setting. In particular we study the output from the principal coordinates analysis on UNIFRAC and WEIGHTED UNIFRAC distances and the output from a double principal coordinate analyses DPCOA using distances computed on the ...
Filipe João A N - - 2012
Exotic pathogens and pests threaten ecosystem service, biodiversity, and crop security globally. If an invasive agent can disperse asymptomatically over long distances, multiple spatial and temporal scales interplay, making identification of effective strategies to regulate, monitor, and control disease extremely difficult. The management of outbreaks is also challenged by limited ...
Badke Yvonne M - - 2012
The success of marker assisted selection depends on the amount of linkage disequilibrium (LD) across the genome. To implement marker assisted selection in the swine breeding industry, information about extent and degree of LD is essential. The objective of this study is to estimate LD in four US breeds of ...
Bliss Robin L RL Department of Orthopedic Surgery, Orthopedic and Arthritis Center for Outcomes Research, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA. - - 2012
Spatial accessibility of healthcare may be measured by proximity of patient residence to health services, typically in driving distance or driving time. Precise driving distances and times are rarely available. Although straight line distances between zipcode centroids and between precise address locations are used as proxy measures for distance to ...
Eagles D - - 2011
The introduction of novel bluetongue serotypes and genotypes into northern Australia is considered possible via the long-distance windborne dispersal of Culicoides (Diptera: Ceratopogonidae) vectors from Southeast Asia. Initial findings from simulation modelling of potential dispersal over a 15-year period revealed that the greatest risk for incursion of windborne Culicoides from ...
Ulrich Markus - - 2011
This paper describes an approach for recognizing instances of a 3D object in a single camera image and for determining their 3D poses. A hierarchical model is generated solely based on the geometry information of a 3D CAD model of the object. The approach does not rely on texture or ...
McClain Craig R - - 2012
Patterns of beta-diversity or distance decay at oceanic scales are completely unknown for deep-sea communities. Even when appropriate data exist, methodological problems have made it difficult to discern the relative roles of environmental filtering and dispersal limitation for generating faunal turnover patterns. Here, we combine a spatially extensive dataset on ...
Rezáč Jan - - 2011
Dissociation curves calculated using multiple correlated QM methods for 66 noncovalent complexes (Řezáč et al., J Chem Theory Comput 2011, 7, 2427) have allowed us to interpolate equilibrium intermolecular distances for each studied method. Comparison of these data with CCSD(T)/complete basis set reference geometries provides information on how these methods ...
Lin Yu - - 2011
Comparing two or more phylogenetic trees is a fundamental task in computational biology. The simplest outcome of such a comparison is a pairwise measure of similarity, dissimilarity, or distance. A large number of such measures have been proposed, but so far all suffer from problems varying from computational cost to ...
Puel F - - 2011
The aim of this study was to identify kinematic and dynamic variables related to the best tumble turn times (3mRTT, the turn time from 3-m in to 3-m out, independent variable) in ten elite male swimmers using a three-dimensional (3D) underwater analysis protocol and the Lasso (least absolute shrinkage and ...
Varley Matthew C - - 2011
PURPOSE: To compare the peak 5-min period of high-velocity running (HiVR) during a soccer match using a pre-defined vs a rolling time interval. METHODS: Player movement data was collected from nineteen elite Australian soccer players over 11 competitive matches (77 individual match files) using a 5-Hz global positioning system. Raw ...
Onuki Ritsuko - - 2011
Abstract Classification of the individuals' genotype data is important in various kinds of biomedical research. There are many sophisticated clustering algorithms, but most of them require some appropriate similarity measure between objects to be clustered. Hence, accurate inter-diplotype similarity measures are always required for classification of diplotypes. In this article, ...
Fenwick N I D - - 2011
As a part of bovine tuberculosis eradication strategy, the Welsh Government has proposed a badger cull in a defined area in and around North Pembrokeshire, and has published information on herd densities and incidence levels within and close to the area. In the present study, three sets of previously published ...
Boykin Laura M - - 2012
Species delimitation directly impacts on global biosecurity. It is a critical element in the decisions made by national governments in regard to the flow of trade and to the biosecurity measures imposed to protect countries from the threat of invasive species. Here we outline a novel approach to species delimitation, ...
Buston Peter M - - 2012
A central question of marine ecology is, how far do larvae disperse? Coupled biophysical models predict that the probability of successful dispersal declines as a function of distance between populations. Estimates of genetic isolation-by-distance and self-recruitment provide indirect support for this prediction. Here, we conduct the first direct test of ...
Zhang Jian J Center for Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109, - - 2011
One of critical difficulties of molecular dynamics (MD) simulations in protein structure refinement is that the physics-based energy landscape lacks a middle-range funnel to guide nonnative conformations toward near-native states. We propose to use the target model as a probe to identify fragmental analogs from PDB. The distance maps are then used to ...
Astrin Jonas J - - 2011
Species boundaries are studied in a group of beetles, the western Palaearctic Cryptorhynchinae. We test for congruence of 'traditionally' identified morphospecies with species inferred through parsimony networks, distance-based clustering and the ultrametric tree-based generalized mixed yule-coalescent (GMYC) approach. For that purpose, we sequenced two variable fragments of mitochondrial DNA (CO1 ...
O'Donnell Lauren J - - 2012
The overall goal of this research is the design of statistical atlas models that can be created from normal subjects, but may generalize to be applicable to abnormal brains. We present a new style of joint modeling of fMRI, DTI, and structural MRI. Motivated by the fact that a white ...
Durrleman Stanley - - 2011
This paper aims at quantifying ontogenetic differences between bonobo (Pan paniscus) and chimpanzee (Pan troglodytes) endocrania, using dental development as a timeline. We utilize a methodology based on smooth and invertible deformations combined with a metric of "currents" that defines a distance between endocranial surfaces and does not rely on ...
Yu Zimu - - 2011
Setback distance has been used as an effective tool to avoid odor nuisance from livestock operations. Many setback distances were guidelines that were determined by empirical methods that are considered to be lack of science base. Air dispersion models have been used to determine setback distances; however, these models do ...
Dick Christian - - 2011
An instant and quantitative assessment of spatial distances between two objects plays an important role in interactive applications such as virtual model assembly, medical operation planning, or computational steering. While some research has been done on the development of distance-based measures between two objects, only very few attempts have been ...
Rasmussen Brian E - - 2011
Purpose: To perform a comparison of the interim air-kerma strength standard for high dose rate (HDR) (192)Ir brachytherapy sources maintained by the University of Wisconsin Accredited Dosimetry Calibration Laboratory (UWADCL) with measurements of the various source models using modified techniques from the literature. The current interim standard was established by ...
Wang Yu-Shuen - - 2011
We introduce a focus+context method to visualize a complicated metro map of a modern city on a small displaying area. The context of our work is with regard the popularity of mobile devices. The best route to the destination, which can be obtained from the arrival time of trains, is ...
Oczypok Elizabeth A - - 2012
The ultimate survival of humanity is dependent upon colonization of other planetary bodies. Key challenges to such habitation are (patho)physiologic changes induced by known, and unknown, factors associated with long-duration and distance space exploration. However, we currently lack biological models for detecting and studying these changes. Here, we use a ...
Goerigk Lars - - 2011
Dispersion-corrected density functional theory is assessed on the new S66 and S66x8 benchmark sets for non-covalent interactions. In total, 17 different density functionals are evaluated. Two flavors of our latest additive London-dispersion correction DFT-D3 and DFT-D3(BJ), which differ in their short-range damping functions, are tested. In general, dispersion corrections are ...
Lee Chulhee - - 2011
In this paper, we propose new auto-stereoscopic 3D displays that substantially reduce crosstalk. In general, it is difficult to eliminate crosstalk in auto-stereoscopic 3D displays. Ideally, the parallax barrier can eliminate crosstalk for a single viewer at the ideal position. However, due to variations in the viewing distance and the ...
Fu Junjie - - 2011
The performance of hybrids can be predicted with gene expression data from their parental inbred lines. Implementing such prediction approaches in breeding programs promises to increase the efficiency of hybrid breeding. The objectives of our study were to compare the accuracy of prediction models employing multiple linear regression (MLR), partial ...
Harmer Aaron M T - - 2011
Orb web spiders sit at the centre of their approximately circular webs when waiting for prey and so face many of the same challenges as central-place foragers. Prey value decreases with distance from the hub as a function of prey escape time. The further from the hub that prey are ...
Hein Andrew M - - 2011
Ecology Letters (2011) ABSTRACT: Animal migration is one of the great wonders of nature, but the factors that determine how far migrants travel remain poorly understood. We present a new quantitative model of animal migration and use it to describe the maximum migration distance of walking, swimming and flying migrants. ...
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