Group selections among laboratory populations of Tribolium.

Genetic structure of Tribolium castaneum (Coleoptera: Tenebrionidae) populations in mills.

The red flour beetle, Tribolium castaneum (Herbst), is primarily found associated with human structures such as wheat and rice mills. Such structures are predicted to be spatially isolated resource patches with frequent population bottlenecks that should influence their genetic structure. Genetic diversity and differentiation among nine populations of T. castaneum collected from wheat and rice...

Knops blood group haplotypes among distinct Brazilian populations.

BACKGROUND The Knops blood group system consists of antigens encoded by exon 29 of complement receptor 1 (CR1) gene. To better elucidate the complexity of Knops group system, the frequency of six single-nucleotide polymorphisms (SNPs) in three Brazilian populations is determined. STUDY DESIGN AND METHODS A total of 118 individuals descendant from Europe, Asia, and Africa were studied. The gen...

Segre-Veronese configuration for testing independence in group-wise selections

We consider testing independence in group-wise selections with some restrictions on combinations of choices. We present models for frequency data of selections for which it is easy to perform conditional tests by Markov chain Monte Carlo (MCMC) methods. When the restrictions on the combinations can be described in terms of a Segre-Veronese configuration, an explicit form of a Gröbner basis cons...

Selections from current literature: focus group technique in chronic illness.

Essential oil variations among the natural populations of Francoeuria undulata

Francoeuria undulata (L.) LACK is often synonymous with two species of the genus Pulicaria,i.e. Pulicaria undulata (L.) C.A. Mey and Pulicaria crispa (Forssk.) olive, which are oftenincluded under the genus Francoeuria. The essential oil yield and compositions in the fivenatural populations of Francoeuria undulata from Fars Province in southern Iran weredetermined by GC and GC/MS analysis. The ...