Results 21 to 30 of about 136,511 (258)

Estimating effective population size changes from preferentially sampled genetic sequences.

PLoS Computational Biology, 2020
Coalescent theory combined with statistical modeling allows us to estimate effective population size fluctuations from molecular sequences of individuals sampled from a population of interest.
Michael D Karcher, Luiz Max Carvalho, Marc A Suchard, Gytis Dudas, Vladimir N Minin   +4 more
doaj   +1 more source

MI-GWAS: a SAS platform for the analysis of inherited and maternal genetic effects in genome-wide association studies using log-linear models

BMC Bioinformatics, 2011
Background Several platforms for the analysis of genome-wide association data are available. However, these platforms focus on the evaluation of the genotype inherited by affected (i.e. case) individuals, whereas for some conditions (e.g.
Mitchell Laura E, Agopian AJ
doaj   +1 more source

Modeling the longtiudnal change of viral load of HIV positive patients on antiretroviral therapy

Cogent Medicine, 2021
HIV/AIDS continues to be a major public health concern and cause of death in the world. Even though WHO recommended viral load testing as the preferred monitoring approach to diagnose and confirm ARV treatment failure, but in most cases, factors ...
Dawit Getachew, Aragaw Eshetie, Dessie Melese Chekole   +2 more
doaj   +1 more source

Association of Melanoma-Risk Variants with Primary Melanoma Tumor Prognostic Characteristics and Melanoma-Specific Survival in the GEM Study

Current Oncology, 2021
Genome-wide association studies (GWAS) and candidate pathway studies have identified low-penetrant genetic variants associated with cutaneous melanoma.
Danielle R. Davari, Irene Orlow, Peter A. Kanetsky, Li Luo, Klaus J. Busam, Ajay Sharma, Anne Kricker, Anne E. Cust, Hoda Anton-Culver, Stephen B. Gruber, Richard P. Gallagher, Roberto Zanetti, Stefano Rosso, Lidia Sacchetto, Terence Dwyer, David C. Gibbs, David W. Ollila, Colin B. Begg, Marianne Berwick, Nancy E. Thomas   +19 more
doaj   +1 more source

Multivariate curve resolution of time course microarray data

BMC Bioinformatics, 2006
Background Modeling of gene expression data from time course experiments often involves the use of linear models such as those obtained from principal component analysis (PCA), independent component analysis (ICA), or other methods.
Martinez M Juanita, Roy Sushmita, Karakach Tobias K, Wentzell Peter D, Allen Christopher P, Werner-Washburne Margaret   +5 more
doaj   +1 more source

Analysis of Log-Linear Models

Journal of the Royal Statistical Society Series B: Statistical Methodology, 1972
Summary Log-linear models are extensively used to analyse categorical and “stimulus-response” data. This paper gives an iterative procedure for obtaining maximum likelihood estimates of cell frequencies and of the parameters of a log-linear model in a multinomial experiment.
openaire   +2 more sources

Adsorptive removal of micropollutants by natural and faujasite zeolites: Structural effect of micropollutants on adsorption

Ecotoxicology and Environmental Safety
To effectively characterize natural zeolite powder (ZP) and faujasite zeolite (FAU) as adsorbents to remove a wide variety of organic micropollutants, quantitative structure-activity relationship (QSAR) models for the adsorption of zeolites were ...
Bo-Gyeon Cho, Kwan-Yong Lee, Se-Been Mun, Che-Ryung Lim, Yeoung-Sang Yun, Chul-Woong Cho   +5 more
doaj   +1 more source

Structural equation and log-linear modeling: a comparison of methods in the analysis of a study on caregivers' health

BMC Medical Research Methodology, 2006
Background In this paper we compare the results in an analysis of determinants of caregivers' health derived from two approaches, a structural equation model and a log-linear model, using the same data set.
Rosenbaum Peter L, Walter Stephen D, Zhu Bin, Russell Dianne J, Raina Parminder   +4 more
doaj   +1 more source

Survival by Race and Ethnicity in Children and Adolescents/Young Adults With Relapsed/Refractory Hodgkin Lymphoma: A Pooled Analysis of Children's Oncology Group Trials

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Despite 5‐year survival rates of over 90% among children and adolescents/young adults (CAYAs) with classic Hodgkin lymphoma (cHL), 15%–20% relapse after frontline therapy. Prior analysis of frontline Children's Oncology Group (COG) clinical trials demonstrated that, despite similar rates of relapse, non‐Hispanic Black (NHB) and ...
Mallorie B. Heneghan, Lindsay A. Renfro, Yue Wu, Katia M. Crisler, Erin Marcotte, Tanya Trippett, Terzah Horton, Bradford S. Hoppe, Frank G. Keller, Chris Forlenza, Cindy Schwartz, Kara M. Kelly, Peter D. Cole, Sharon M. Castellino, Justine M. Kahn   +14 more
wiley   +1 more source

Randomly Stopped Sums: Models and Psychological Applications

Frontiers in Psychology, 2014
This paper describes an approach to modeling the sums of a continuous random variable over a number of measurement occasions when the number of occasions also is a random variable.
Michael eSmithson, Yiyun eShou
doaj   +1 more source