Results 241 to 250 of about 35,797,497 (288)

Treatment effects and placebo effects

BMJ, 2015
Researchers investigated the effectiveness of iron supplementation on reducing fatigue in non-anaemic women with unexplained fatigue. A double blind randomised placebo controlled trial was performed. In total, 144 women aged 18-55 years were recruited from an academic primary care centre and eight general practices in western Switzerland.
openaire   +2 more sources

Experimental observation of the quantum Hall effect and Berry's phase in graphene

Nature, 2005
When electrons are confined in two-dimensional materials, quantum-mechanically enhanced transport phenomena such as the quantum Hall effect can be observed.
Yuanbo Zhang, Yan-Wen Tan, H. Stormer, P. Kim   +3 more
semanticscholar   +1 more source

A simplified method of evaluating dose-effect experiments.

Journal of Pharmacology and Experimental Therapeutics, 1948
1. A rapid graphic method for approximating the Median Effective Dose and the Slope of dose-per cent effect curves is presented. Confidence limits of both of these parameters for 19/20 probability are given by the method.
J. Litchfield, F. Wilcoxon
semanticscholar   +1 more source

Fixed Effects and Random Effects

2008
One of the major benefits from using panel data as compared to cross-section data on individuals is that it enables us to control for individual heterogeneity. Not controlling for these unobserved individual specific effects leads to bias in the resulting estimates.
openaire   +1 more source

Popcorn Effect

Journal of Bronchology & Interventional Pulmonology, 2013
F. Petrella, S. Cavaliere, L. Spaggiari
openaire   +3 more sources

Ultrasound Effects

Science, 1985
In a listing of the new foreign associates of the National Academy of Sciences (News and Comment, 17 May, p. 826), the name of Pierre Chambon, Biochemistry, Institut de Chimie Biologique, Faculté de Médecine, Strasbourg, France, was inadvertently omitted.
openaire   +2 more sources

The Effect of a Market Orientation on Business Profitability

, 1990
John C. Narver, S. Slater
semanticscholar   +1 more source

Effect size estimates: current use, calculations, and interpretation.

Journal of experimental psychology. General, 2012
C. O. Fritz, P. Morris, Jennifer J. Richler   +2 more
semanticscholar   +1 more source

Side Effects' Side Effect

Postgraduate Medicine, 1980
openaire   +2 more sources

the Effect of

, 2004
Douglas C. Montgomery, Loon Ching Tang, Usa Alamos National Laboratory, UK Reliability-based fault analysis of Nottingham, UK S 2 Heriot-Watt Univesity, S. B. C. U. U. O. University of Technology, X. W. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. K. Burdick, based on copula theory Y. Wang Christou, Distribution-free composite Shewhart-GWMA P.A. coolen, Rachel Silvestrini failure analysis of renewable energy s Di Bucchianico, M. A. A. F. Edwards, Tech Hume Center Freeman, nonparametric triple exponentially University of Singapore, Usa universal method of complex system reliability Washington University, of Chinese Academy non-parametric double, U. S. H. Z. N. Z. A. Gore and Associates, scheme to monitor Jensen, T. U. W. L. M. D. of Houston, .. InfineonTechnologiesdurationH.Shore..........., Balasubramaniyan, Articles Editorial Board   +20 more
semanticscholar   +1 more source