We investigated the pattern of molecular variation with respect to secondary structure in the 16S ribosomal RNA gene and its phylogenetic implications for arachnids with a focus on spiders. Based on a model by Gutell et al. (1996), secondary structures were proposed for the 39 half of 16S in the mygalomorph spider Aptostichus atomarius. Models were also constructed for a hypervariable length of...

let r be a commutative ring with non-zero identity and m be a unital r-module. then the concept of quasi-secondary submodules of m is introduced and some results concerning this class of submodules is obtained

This problem analytical scientific article informs the reader about nowadays academic standards of secondary school management and their suitability to social, historical, political and economic realities of the development of civilization. It sets out and protects by academic evidence different points of view on the new enough concept of «Way of educational organization life», gives modern app...

This paper aims to analyze the effect of human capital on economic growth. Linear regression models with ordinary least squares method have been used for the analysis in which the dependent variable of Gross Domestic Product (GDP) per capita growth is decided according to real price and independent variables for human capital are enrollment rate in different education levels and also literacy r...

OBJECTIVE To analyze whether the explanatory model for health assessments among elderly people based on self-reporting is comparable with the model based on secondary informant reporting, and whether the secondary informant's self-assessed health influences the health assessment among these elderly people. METHODS This was a cross-sectional study on 230 pairs consisting of one elderly individ...