نتایج جستجو برای: pre stratified

تعداد نتایج: 354858  

Journal: :Forum Mathematicum 2004

Journal: :Journal of Geophysical Research: Oceans 1999

2017
Zachary A.P. Wintrob Jeffrey P. Hammel George K. Nimako Dan P. Gaile Alan Forrest Alice C. Ceacareanu

Exogenous insulin use may interfere with the T helper cells' cytokine production. This dataset presents the relationship between pre-existing use of injectable insulin in women diagnosed with breast cancer and type 2 diabetes mellitus, the T-helper 1 and 2 produced cytokine profiles at the time of breast cancer diagnosis, and subsequent cancer outcomes. A Pearson correlation analysis evaluating...

2013
Qian Xu Cai-yun He Jing-wei Liu Yuan Yuan

BACKGROUND MicroRNAs (miRNAs) negatively regulate the 3' untranslated region (3'-UTR) of coding genes by suppressing translation or degrading mRNAs, and they act as oncogenes or tumor suppressors. Recently, several studies investigated the association between pre-miR-27a rs895819 polymorphism and the risks of various cancers, but the results were inconsistent. METHODOLOGY/PRINCIPAL FINDINGS W...

Journal: :Journal of Algebra 1994

Journal: :Theoretical Linguistics 2015

Journal: :Information and Computation 1991

2003
Jana Kostková Radim Sára

Local joint image modeling in stereo matching brings more discriminable and stable matching features. Such features reduce the need for strong prior models (continuity) and thus algorithms that are less prone to false positive artefacts in general complex scenes can be applied. One of the principal quality factors in area-based dense stereo is the matching window shape. As it cannot be selected...

2016
Yousef M. T. El Gimati

Stratified sampling is often used in opinion polls to reduce standard errors, and it is known as variance reduction technique in sampling theory. The most common approach of resampling method is based on bootstrapping the dataset with replacement. A main purpose of this work is to investigate extensions of the resampling methods in classification problems, specifically we use decision trees, fr...

Journal: :iranian journal of public health 0
xiangyu chen dept. of epidemiology and health statistics, school of public health, medical college of soochow university , suzhou, china. qiaoqiao du dept. of epidemiology and health statistics, school of public health, medical college of soochow university , suzhou, china. zongda jin dept. of epidemiology and health statistics, school of public health, medical college of soochow university , suzhou, china. tian xu dept. of epidemiology and health statistics, school of public health, medical college of soochow university , suzhou, china. jiachen shi dept. of epidemiology and health statistics, school of public health, medical college of soochow university , suzhou, china. ge gao dept. of epidemiology and health statistics, school of public health, medical college of soochow university , suzhou, china.

traditional survey methods may cause refusals to respond or untruthful replies when encounter the sensitive questions. the randomized response technique (rrt) is designed to decrease social desirability bias and obtain reliable estimates. this study aimed to apply these new methods on the sensitive questions survey.simmons model was applied in the survey of issues relevant to commercial sex amo...

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