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Multistage Sampling for Genetic Studies
Annual Review of Genomics and Human Genetics, 2007In the past, to study Mendelian diseases, segregating families have been carefully ascertained for segregation analysis, followed by collecting extended multiplex families for linkage analysis. This would then be followed by association studies, using independent case-control samples and/or additional family data.
Robert C, Elston +2 more
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Magnetic Studies of Lunar Samples
Science, 1970The remanent magnetism of a lunar type C breccia sample includes a large viscous component with a time constant of several hours, and a high coercivity remanence, possibly acquired by impact processes on the lunar surface. Ilmenite(?) and metallic iron in breccias, and ferrous and metallic iron in glass beads separated from lunar fines (type D) were ...
R R, Doell +3 more
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Unified study of color sampling
Applied Optics, 1989In this study, we unify some previous research work on the design of optimal color sensors and the reconstruction of color signals from color samples. We show that they are all based on a simple linear vectorspace representation derived from the Karhunen-Loeve (K-L) expansion theorem. We also show how this idea works by two simulation examples.
Y L, Chang, P, Liang, S, Hackwood
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Sampling strategies for linkage studies
European Archives of Psychiatry and Clinical Neuroscience, 1991Broadly there are three alternative sampling strategies for linkage studies of complex disorders such as schizophrenia. These are to select either affected sib pairs (and their parents) or small-to-medium-size pedigrees, or large pedigrees. The advantages and disadvantages of each are discussed.
L R, Goldin, M M, Martinez, E S, Gershon
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Sampling bias in transgender studies
The Lancet Infectious Diseases, 2013Thus, urban and clinic samples might not represent the sex lives of transgender women in less urban areas, of higher economic positions, or those who are not primarily sexually attracted to men. Although high HIV prevalences can serve as an advocacy instrument in drawing attention to the health of transgender women, labelling a group that experiences ...
Greta R, Bauer, Ayden I, Scheim
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1980
The following compilation of study designs is intended as a resource for both reviewers and practitioners of genetic toxicology. The study designs include the general requirements under Good Laboratory Practices regulations, methodology, and evaluation criteria.
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The following compilation of study designs is intended as a resource for both reviewers and practitioners of genetic toxicology. The study designs include the general requirements under Good Laboratory Practices regulations, methodology, and evaluation criteria.
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Micropaleontological Studies of Lunar Samples
Science, 1970Optical and electron microscopic studies of rock chips and dust from the bulk sample box returned by Apollo 11 and of petrographic thin sections and acid-resistant residues of lunar material have yielded no evidence of indigenous biological activity.
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Sample sizes for bioequivalence studies
Statistics in Medicine, 1991AbstractIn recent years a number of decision rules, based on sound statistical principles, have been proposed for deciding if a test formulation is bioequivalent to a reference formulation. The decision rule based on confidence intervals has been accepted by regulatory agencies, at least by the Food and Drug Administration of the United States.
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The American Naturalist, 1972
The rarefaction method proposed by Sanders (1968) to allow one to compare the diversity of samples composed of different numbers of individuals and species is compared with the results that would be obtained if smaller random samples were taken from a universe defined by the observed sample. The rarefaction technique overestimates the number of species
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The rarefaction method proposed by Sanders (1968) to allow one to compare the diversity of samples composed of different numbers of individuals and species is compared with the results that would be obtained if smaller random samples were taken from a universe defined by the observed sample. The rarefaction technique overestimates the number of species
openaire +1 more source