Results 261 to 270 of about 371,247 (318)

Surgical Trial: Possibilities and Objections

European Surgical Research, 2008
Trials are widely regarded as the best method for assessing the effectiveness of new techniques. The placebo effect of surgery is a real but little considered fact; other problems that arise in surgical trials are the skills of the participating surgeons, the random assignment of patients and the impossibility of a wholly blind approach.
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Applications of covering principle to clinical trials with multiple objectives

Communications in Statistics - Simulation and Computation, 2021
A novel covering principle was recently proposed to address the multiplicity issue in the multiple hypotheses testing with a hierarchical structure.
Hong Zhou, Huajiang Li
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The Trials of the Gas Mask An Object of Fumbling

Diogenes, 1993
It was during the Gulf War that I discovered the gas mask to be an object. As it became increasingly credible and imminent, the unfathomable menace was crucially rescaled to the toxic potency and dispersal pattern of law-abiding molecules. So it went with the gas mask: the Gulf War transformed it from a vaguely morbid mental image into a facial object ...
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Superchain procedures in clinical trials with multiple objectives

Statistics in Medicine, 2012
This paper introduces a new class of multiple testing procedures for addressing multiplicity problems arising in clinical trials with multiple objectives grouped into families. The families may correspond to equally important sets of objectives (co‐primary endpoints) or ordered sets of objectives (primary and secondary endpoints).
Kordzakhia, George, Dmitrienko, Alex
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