Results 31 to 40 of about 46,545 (326)

Samsun Koşullarında Geliştirilen Çeşit Adayı Mısırların Verim Öğelerinin Belirlenmesi ve Stabilite Analizi

Journal of Agricultural Sciences, 2003
Bu araştırmada İvesi ırkı kuzularda doğum ağırlığına ait kalıtım derecesinin tahmininde baba familya sayısının etkisi araştırılmıştır. Doğum ağırlığına ait veriler 17 baş damızlık koça ait 1062 baş tekiz kuzudan elde edilmiştir.
Ahmet Öz
doaj   +1 more source

Estimation of genetic parameters of Wood’s lactation curve parameters using Bayesian and REML methods for milk production trait of Holstein dairy cattle

Journal of Applied Animal Research, 2022
Bayesian and average information restricted maximum likelihood (AI-REML) approaches were used to estimate variance components and genetic parameters of Wood’s lactation curve parameters of milk production traits in three lactations of Iranian Holstein ...
Keyvan Radjabalizadeh, Sadegh Alijani, Abolfazl Gorbani, Tarlan Farahvash   +3 more
doaj   +1 more source

Plasma metabolites reflect seasonally changing metabolic processes in a long-distance migrant shorebird (Calidris canutus) [PDF]

, 2002
Migrant birds have tightly scheduled annual cycles consisting of several distinct life cycle (sub-)stages such as reproduction, migration, moult and overwintering, each of which have specific metabolic requirements (e.g., fattening during migration ...
Jenni, Lukas,, Jenni-Eiermann, Susanne,, Piersma, Theunis,   +2 more
core   +2 more sources

A new approach fits multivariate genomic prediction models efficiently

Genetics Selection Evolution, 2022
Background Fast, memory-efficient, and reliable algorithms for estimating genomic estimated breeding values (GEBV) for multiple traits and environments are needed to make timely decisions in breeding.
Alencar Xavier, David Habier
doaj   +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

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

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

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

The analysis of very small samples of repeated measurements II: a modified box correction [PDF]

, 2010
There is a need for appropriate methods for the analysis of very small samples of continuous repeated measurements. A key feature of such analyses is the role played by the covariance matrix of the repeated observations.
Bellavance, Box, Box, Brammer, Chen, Crowder, Fitzmaurice, Geisser, Greenhouse, Huynh, Jones, Kenward, Kenward, Mancl, Nelder, Nelder, Pan, SAS Institute Inc., Satterthwaite, Scheffé, Skene, Stuart, Verbeke   +22 more
core   +2 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