Results 91 to 100 of about 1,461,213 (320)
Permutation tests to estimate significances on Principal Components Analysis [PDF]
Computational Ecology and Software, 2012 Principal Component Analysis is the most widely used multivariate technique to summarize information in a data collection with many variables. However, for it to be valid and useful the meaningful information must be retained and the noisy information ...
Vasco M. N. C. S. Vieira
doaj
Proteomes, 2013 Identification of biomarkers capable of differentiating between pathophysiological states of an individual is a laudable goal in the field of proteomics.
Dennis J. Orton, Alan A. Doucette
doaj +1 more source
Molecular Oncology, EarlyView.Integrating ancestry, differential methylation analysis, and machine learning, we identified robust epigenetic signature genes (ESGs) and Core‐ESGs in Black and White women with endometrial cancer. Core‐ESGs (namely APOBEC1 and PLEKHG5) methylation levels were significantly associated with survival, with tumors from high African ancestry (THA) showing ...
Huma Asif, J. Julie Kim
wiley +1 more source
Ekológia (Bratislava), 2017 This article presents the features of the phylogenetic organization of the plant communities of the Dnieper River terrace within the ‘Dnieper-Orilskiy’ Nature Reserve and the patterns of its spatial variation involving remote sensing data of the Earth’s ...
Zhukov Olexander +4 more
doaj +1 more source
Debate: Subgroup analyses in clinical trials: fun to look at - but don't believe them!
Current Controlled Trials in Cardiovascular Medicine, 2000 Analysis of subgroup results in a clinical trial is surprisingly unreliable, even in a large trial. This is the result of a combination of reduced statistical power, increased variance and the play of chance.
Sleight Peter
doaj +1 more source
Outperforming completely randomized designs. [PDF]
Bi-randomization designs have become increasingly popular in industry because some of the factors under investigation are often hard-to-change. It is well-known that the resulting compound symmetric error structure not only affects estimation and ...
Goos, Peter, Vandebroek, Martina
core
Molecular Oncology, EarlyView.There is an unmet need in metastatic breast cancer patients to monitor therapy response in real time. In this study, we show how a noninvasive and affordable strategy based on sequencing of plasma samples with longitudinal tracking of tumour fraction paired with a statistical model provides valuable information on treatment response in advance of the ...
Emma J. Beddowes +20 more
wiley +1 more source
Inference with Imperfect Randomization: The Case of the Perry Preschool Program [PDF]
This paper considers the problem of making inferences about the effects of a program on multiple outcomes when the assignment of treatment status is imperfectly randomized.
Heckman, James J. +3 more
core
Random Matrices and Random Permutations
International Mathematics Research Notices, 1999 58 pages, Latex, 32 ...
openaire +3 more sources
Axioms, 2023 This expository paper advocates an approach to physics in which “typicality” is identified with a suitable form of algorithmic randomness. To this end various theorems from mathematics and physics are reviewed. Their original versions state that some property Φ(x) holds for P-almost all x∈X, where P is a probability measure on some space X.
openaire +5 more sources