The Class Bdelloidea of the Phylum Rotifera is the largest metazoan taxon in which males, hermaphrodites, and meiosis are unknown. We conducted a molecular genetic test of this indication that bdelloid rotifers may have evolved without sexual reproduction or genetic exchange. The test is based on the expectation that after millions of years without these processes, genomes will no longer contai...

Objective This research draws on the theory of unequal exchange to help explain global inequities in prevalence undernourishment (PoU). Methods I evaluate proposition that vertical flow exports high-income countries exerts harmful effects less-developed using fixed estimation and generalized least squares random tobit panel regression models. Results Insights from advance our understanding PoU....

Choir singing as a collective polyphonic vocal art, compared to the natural sound of nature, choir works in process artistic reproduction, addition formation rate sound, amplitude and overtone resonance other material requirements, must be built with role human thought feeling exchange, is organized, demanding, sequential social functions requirements.

the lack of health human resources is a global issue. china also faces the same issue, in addition to the equity of human resources allocation. with the launch of new healthcare reform of china in 2009, have the issues been improved? relevant data from china health statistical yearbook and a qualitative study show that the unequal allocation of health human resources is getting worse than before.

Genomic regions containing trinucleotide repeats (TNRs) are highly unstable, as the repeated sequences exhibit a high rate of mutational change, in which they undergo either a contraction or an expansion of repeat numbers. Although expansion of TNRs is associated with several human genetic diseases, the expansion mechanism is poorly understood. Extensive studies in model organisms have indicate...

The article provides information about green microalga Chloroidium saccharophilum (Trebouxiophyceae) whose history of study dates back to more than 100 years. issues its intraspecific variability are considered. We also studied the strain C. IRK–A 230 isolated from a small puddle on southeastern shore Lake Baikal (Republic Buryatia, Russia). Light and electron microscopy molecular phylogeny met...