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Mann-Whitney Test with Adjustments to Pre-treatment Variables for Missing Values and Observational Study
Dimension reduction Kernel smoothing Mann-Whitney statistic Missing out- comes Observational studies Selection bias
2016/1/25
The conventional Wilcoxon/Mann-Whitney test can be invalid for comparing treatment effects in the presence of missing values or in observational studies. This is because the missingness of the outcome...
Mann-Whitney Test with Adjustments to Pre-treatment Variables for Missing Values and Observational Study
Dimension reduction Kernel smoothing Mann-Whitney statistic
2016/1/20
The conventional Wilcoxon/Mann-Whitney test can be invalid for comparing treatment effects in the presence of missing values or in observational studies. This is because the missingness of the outcome...
Central limit theorems for pre-averaging covariance estimators under endogenous sampling times
Central limit theorem Hitting times Market microstructure noise Nonsynchronous observa-tions Pre-averaging Time endogeneity
2013/6/13
We consider two continuous It\^o semimartingales observed with noise and sampled at stopping times in a nonsynchronous manner. In this article we establish a central limit theorem for the pre-averaged...
Thermal Effects for Shaft-Pre-Stress on Rotor Dynamic System
Thermal effects Modelling, Campbell diagram Whirl Rotor dynamics.
2012/9/17
This Paper outlines study behaviour of rotating shaft with high speed under thermal effects. The method of obtaining the frequency response functions of a rotor system with study whirl effect in this ...
Extraversion and Organizational Work Beliefs as Pre-Employment Predictors of Union Attitudes
Extraversion Organizational Work Beliefs Organizational Work Beliefs Pre-Employment Predictors Union Attitudes
2009/7/15
In order to examine the role of personality and work beliefs as determinants of general union attitudes and the willingness to join a union, a model of extraversion, organizational work beliefs, union...
图书馆和档案馆对于未出版的1972年前录音资料在数字保护与传播上的版权保护及其它相关问题（Copyright and Related Issues Relevant to Digital Preservation and Dissemination of Unpublished Pre-1972 Sound Recordings by Libraries and Archives）
图书馆 未出版录音资料 数字版权保护
2009/4/3
The National Recording Preservation Board was established at the Library of Congress by the National Recording Preservation Act of 2000. Among the provisions of the law are a directive to the Board to...
“Pre-conditioning” for feature selection and regression in high-dimensional problems
Pre-conditioning feature selection regression high-dimensional problems
2010/4/27
The primary method used for this initial regression is supervised principal components. Then we
apply a standard procedure such as forward stepwise selection or the
LASSO to the pre-conditioned resp...
Promoting School Readiness in Oklahoma: An Evaluation of Tulsa's Pre-K Program
Promoting School Readiness Oklahoma Tulsa's Pre-K Program
2016/3/4
Since the mid-1990s, three states, including Oklahoma, have established a universal pre-kindergarten (pre-K) program. We analyze the effects of Oklahoma's universal pre-kindergarten (pre-K) program fo...