Results 31 to 40 of about 46,336 (180)

A comparative study of estimators in multilevel linear models.

PLoS ONE, 2021
Multilevel Models are widely used in organizational research, educational research, epidemiology, psychology, biology and medical fields. In this paper, we recommend the situations where Bootstrap procedures through Minimum Norm Quadratic Unbiased ...
Sabz Ali, Said Ali Shah, Seema Zubair, Sundas Hussain   +3 more
doaj   +2 more sources

Evaluating the performance of Bayesian and restricted maximum likelihood estimation for stepped wedge cluster randomized trials with a small number of clusters

BMC Medical Research Methodology, 2022
Background Stepped wedge trials are an appealing and potentially powerful cluster randomized trial design. However, they are frequently implemented with a small number of clusters.
Kelsey L. Grantham, Jessica Kasza, Stephane Heritier, John B. Carlin, Andrew B. Forbes   +4 more
doaj   +1 more source

Penalized additive regression for space-time data: a Bayesian perspective [PDF]

, 2003
We propose extensions of penalized spline generalized additive models for analysing space-time regression data and study them from a Bayesian perspective.
Fahrmeir, Ludwig, Kneib, Thomas, Lang, S.   +2 more
core   +3 more sources

Characteristic comparison of triglyceride-rich remnant lipoprotein measurement between a new homogenous assay (RemL-C) and a conventional immunoseparation method (RLP-C)

Lipids in Health and Disease, 2008
Background Increased serum remnant lipoproteins are supposed to predict cardiovascular disease in addition to increased LDL. A new homogenous assay for remnant lipoprotein-cholesterol (RemL-C) has been developed as an alternative to remnant-like particle-
Saikawa Shinichi, Abe Ikuro, Ikewaki Katsunori, Ogura Yutaka, Hirowatari Yuji, Kurosawa Hideo, Yoshida Hiroshi, Domitsu Kenichi, Ito Kumie, Yanai Hidekatsu, Tada Norio   +10 more
doaj   +1 more source

Sophisticated sperm allocation in male fowl [PDF]

, 2003
When a female is sexually promiscuous, the ejaculates of different males compete for the fertilization of her eggs; the more sperm a male inseminates into a female, the more likely he is to fertilize her eggs.
Pizzari, T., Cornwallis, C.K., Lovlie, H., Jakobssen, S., Birkhead, T.R.   +4 more
core   +1 more source

Derivative Computations and Robust Standard Errors for Linear Mixed Effects Models in lme4 [PDF]

, 2017
While robust standard errors and related facilities are available in R for many types of statistical models, the facilities are notably lacking for models estimated via lme4.
Merkle, Edgar C., Wang, Ting
core   +3 more sources

Increased heterozygosity and allele variants are seen in Texel compared to Suffolk sheep [PDF]

, 2004
In this study, the Suffolk and Texel sheep breeds were compared for microsatellite marker heterozygosity throughout seven chromosomal regions in the sheep genome.
A Farid, AF McRae, AJ Ede, AJ Ede, AJ Smith, AN Blattman, AP Dempster, BA Freking, BM Burns, C Charlier, CA Pierson, D Vaiman, DJ Hulme, DM Groth, DS Falconer, E O'Doherty, E O'Doherty, F Tajima, F-W Schwaiger, FC Buchanan, G Simm, GA Gutierrez-Espeleta, GA Walling, HM Henry, J Buitkamp, J Cassinello, J Trowsdale, J Trowsdale, JC Fay, JF Maddox, JF Maddox, JM Penty, K Tabet-Aoul, KP Davies, KP Davies, KP Davies, LM Kossarek, LR Piper, M Carrington, M De Gortari, M Georges, MD Bishop, MR Thurz, PA Swarbrick, PW Hedrick, S Paterson, SJ O'Brien, TH Clutton-Brock, TM Robertson   +48 more
core   +1 more source

Remling’s theorem on canonical systems

Journal of Mathematical Physics, 2016
In this paper, we extend the Remling’s theorem on canonical systems that the ω limit points of the Hamiltonian under the shift map are reflectionless on the support of the absolutely continuous part of the spectral measure of a canonical system.
openaire   +3 more sources

REML estimation for binary data in GLMMs

Journal of Multivariate Analysis, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Noh, Maengseok, Lee, Youngjo
openaire   +1 more source

Employing a Monte Carlo algorithm in Newton-type methods for restricted maximum likelihood estimation of genetic parameters.

PLoS ONE, 2013
Estimation of variance components by Monte Carlo (MC) expectation maximization (EM) restricted maximum likelihood (REML) is computationally efficient for large data sets and complex linear mixed effects models.
Kaarina Matilainen, Esa A Mäntysaari, Martin H Lidauer, Ismo Strandén, Robin Thompson   +4 more
doaj   +1 more source