Results 21 to 30 of about 148,106 (212)

Comparison of predictor approaches for longitudinal binary outcomes: application to anesthesiology data [PDF]

PeerJ, 2014
Longitudinal data with binary repeated responses are now widespread among clinical studies and standard statistical analysis methods have become inadequate in the answering of clinical hypotheses.
Anil Aktas Samur, Nesil Coskunfirat, Osman Saka   +2 more
doaj   +2 more sources

Penalized Exponentially Tilted Likelihood for Growing Dimensional Models with Missing Data

Entropy
This paper develops a penalized exponentially tilted (ET) likelihood to simultaneously estimate unknown parameters and select variables for growing dimensional models with missing response at random.
Xiaoming Sha, Puying Zhao, Niansheng Tang   +2 more
doaj   +1 more source

Calibration and Evaluation of Different Estimation Models of Daily Solar Radiation in Seasonally and Annual Time Steps in Shiraz Region

مجله آب و خاک, 2017
Introduction: Solar radiation on the earth surface has a wide range of applications in hydrology, agriculture and meteorology. Solar radiation is an important parameter of estimated models of reference crop potential evapotranspiration such as the Penman–
Hamid Reza Fooladmand, Farzaneh Karimi
doaj   +1 more source

New prediction models for gross energy of pig urine using urinary nitrogen concentration and body weight: technical note [PDF]

Animal Bioscience
The objectives were to evaluate previous equations for estimating gross energy (GE) of pig urine using urinary nitrogen (N) and to develop novel equations for estimating GE concentrations of pig urine. A total of 136 urine samples were obtained from pigs
Hyunseok Do, Bokyung Hong, Jeonghyeon Son, Noa Park, Beob Gyun Kim   +4 more
doaj   +1 more source

Risk factors for diarrhea in a cohort of dairy heifer calves reared in individual outdoor hutches in Piraí, Rio de Janeiro, Brazil

Semina: Ciências Agrárias, 2016
This study aimed to evaluate the association between diarrhea and risk factors potentially related to diarrhea incidence, such as Cryptosporidium, Giardia, Eimeria and nematode infection, animal age, failure to transfer passive immunity, type of ...
Thais Ferreira Fagundes, Letícia Gabriela Poblete Vidal, Pedro Afonso Moreira Alves, Wagner de Souza Tassinari, Rita de Cássia Alves Alcântara de Menezes, Adevair Henrique da Fonseca, Maria Julia Salim Pereira   +6 more
doaj   +1 more source

Gradient estimates for singular $p$-Laplace type equations with measure data [PDF]

, 2021
Hongjie Dong, Hanye Zhu
openalex   +1 more source

Impact of the estimation equation for GFR on population-based prevalence estimates of kidney dysfunction

BMC Nephrology, 2017
Background Estimating equations are recommended by clinical guidelines as the preferred method for assessment of glomerular filtration rate (GFR). The aim of the study was to compare population-based prevalence estimates of decreased kidney function in ...
Pietro Trocchi, Matthias Girndt, Christa Scheidt-Nave, Silke Markau, Andreas Stang   +4 more
doaj   +1 more source

Full title: prevalence and risk factors of overweight in Beijing infants basing generalized estimating equation: a longitudinal study

BMC Public Health
Background The prevalence of childhood overweight and obesity in China has been rapidly increasing in recent years. The purposes of this study were to investigate the prevalence of infant overweight in Beijing and to explore the influencing factors using
Fang Ye, Jie Chen, Qin Hui, Die Liu, Qi Sun, Jing Liu, Qi Zhang   +6 more
doaj   +1 more source

Pathway analysis of rare variants for the clustered phenotypes by using hierarchical structured components analysis

BMC Medical Genomics, 2019
Backgrounds Recent large-scale genetic studies often involve clustered phenotypes such as repeated measurements. Compared to a series of univariate analyses of single phenotypes, an analysis of clustered phenotypes can be useful for substantially ...
Sungyoung Lee, Sunmee Kim, Yongkang Kim, Bermseok Oh, Heungsun Hwang, Taesung Park   +5 more
doaj   +1 more source

BB: An R Package for Solving a Large System of Nonlinear Equations and for Optimizing a High-Dimensional Nonlinear Objective Function

Journal of Statistical Software, 2009
We discuss R package BB, in particular, its capabilities for solving a nonlinear system of equations. The function BBsolve in BB can be used for this purpose.
Ravi Varadhan, Paul Gilbert
doaj