搜索结果: 1-15 共查到“理学 LONGITUDINAL”相关记录48条 . 查询时间(1 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Dynamic copula-based nonparametric estimation of rank-tracking probabilities with longitudinal data
动态copula 纵向数据秩 跟踪概率 非参数估计
2023/5/10
The rank-tracking probability (RTP) is a useful statistical index for measuring the ``tracking ability'' of longitudinal disease risk factors in biomedical studies. A flexible nonparametric method for...
Longitudinal study of alcohol consumption and HDL concentrations: a community-based study
alcohol cardiovascular disease risk epidemiology HDL lipids prospective cohort triglyceride
2018/11/13
Background: In cross-sectional studies and short-term clinical trials, it has been suggested that there is a positive dose-response relation between alcohol consumption and HDL concentrations. However...
Body composition, diet, and physical activity: a longitudinal cohort study in preschoolers with cerebral palsy
body composition body fat cerebral palsy energy intake fat-free mass habitual physical activity preschool children sedentary behavior
2018/11/12
Background: Altered body composition in children with cerebral palsy (CP) could be due to differences in energy intake, habitual physical activity (HPA), and sedentary time.
Interactions between genetic variants associated with adiposity traits and soft drinks in relation to longitudinal changes in body weight and waist circumference
adiposity traits genetic variants interactions obesity soft drinks
2018/12/14
Background: Intake of sugar-sweetened beverages is associated with obesity, and this association may be modified by a genetic predisposition to obesity.
Spectral Analysis for Discrete Longitudinal Data
Discrete longitudinal data spectral analysis
2015/7/14
Spectral Analysis for Discrete Longitudinal Data.
Fitting Longitudinal Data with Hierarchical Generalized Linear Models
H-likelihood L-N estimators Poisson-Gamma models
2015/3/18
We propose a class of hierarchical generalized linear models (HGLMs) with random dispersions in this paper, and focus on the properties of the L-N estimators for the fixed
effect β in the extended Po...
An approach to joint analysis of longitudinal measurements and competing risks failure time data
longitudinal measurements risks failure time data
2015/3/18
Joint analysis of longitudinal measurements and survival data has received much attention in recent
years. However, previous work has primarily focused on a single failure type for the event time. In...
Pressure support versus thermal broadening in the Lyman alpha forest - I. Effects of the equation of state on longitudinal structure
low-density intergalactic gas temperature
2014/12/22
In the low-density intergalactic medium that gives rise to the Lyman α (Lyα) forest, gas temperature and density are tightly correlated. The velocity scale of thermal broadening and the Hubble flow ac...
Regression Trees for Longitudinal and Multiresponse Data
CART,decision tree generalized estimating equation linear mixed effect smodel lowess missing values recursive partitioning selection bias
2012/11/22
Previous algorithms for constructing regression tree models for longitudinal and multiresponse data have mostly followed the CART approach. Consequently, they inherit the same selection biases and com...
Longitudinal Study of Repeated Sprint Performance in Youth Soccer Players of Contrasting Skeletal Maturity Status
young athletes multilevel modeling growth maturation short-term effort
2015/5/12
without the use of the arms were measured. Fat-free mass (FFM) was determined by age and gender-specific formulas. Developmental changes in total sprint time across ages were predicted using multileve...
Estimation of Genetic Parameters from Longitudinal Records of Body Weight of Berkshire Pigs
Age Body Weights Direct and Maternal Genetic Effects
2016/5/10
Direct and maternal genetic heritabilities and their correlations with body weight at 5 stages in the life span of purebred Berkshire pigs, from birth to harvest, were estimated to scrutinize body wei...
The Superconducting Phases of URu2Si2: Longitudinal Sound Velocity Measurements
Superconducting Phases URu2Si2 Longitudinal Sound Velocity Measurements
2012/2/27
High resolution longitudinal sound velocity measurements in a magnetic field performed in the temperature tending to zero limit reveal two distinct signatures attributable to multiple superconducting ...
Longitudinal Scaling of Elliptic Flow in Landau Hydrodynamics
Landau Hydrodynamics Longitudinal Scaling of Elliptic Flow
2011/7/21
This study presents generalization of the Landau hydrodynamic solution for multiparticle production applied to non-central relativistic heavy ion collisions.
Longitudinal Fluctuations in Partonic and Hadronic Initial State
Longitudinal Fluctuations Partonic Hadronic Initial State
2011/7/21
Substantial collective flow is observed in collisions between Lead nuclei at LHC as evidenced by the azimuthal correlations in the transverse momentum distributions of the produced particles.
Longitudinal pseudodifferential operators on multiply fibred manifolds
Longitudinal pseudodifferential operators multiply fibred manifolds
2011/1/20
Motivated by index theory on flag varieties, we prove a compactness theorem for products of longitudinal pseudodifferential operators on manifolds admitting multiple fibrations. Let X be a smooth mani...