Although our sample of positive selection may be biased, most positive selection episodes appear to have taken place in respiratory chain genes.
The above films are just a sampling of selections taken from an international film culture that is increasingly congested with serious, worthwhile movies shot on digital video.
Enjoy this online sampling of selections from the show, or drop by and see the prints in Berkeley or Bremen.
For state and territory samples, probability of selection was proportionate to AIDS prevalence; for provider samples, probability of selection was proportionate to HIV-infected patient census.
As this was a sample of convenience, selection bias prevents the results from being assumed to be reflective of the population.
Additionally, data abstracted for the population-based surveys included methods of sample selection, sample size and pre-war data comparisons.
Although both samples were randomized cluster samples, the possibility of selection bias cannot be overlooked.
We therefore used a purposive multistage sampling of first selection of districts based on poverty incidence (PI) followed by selection of communities within the districts.
The couple plan to release sampler CDs of selections from the material as further fund-raising efforts, and will donate the entire Creative Music Studio audio collection to the Center for Jazz Studies at Columbia University.
In the final stage of sample selection, the number of teachers that were interviewed was determined by a proportional sampling method.
