Introduction. Increasing concentrations of xenobiotics in the biosphere have induced growth microelementoses. The pathology is frequent among children as a result their adaptive insufficiency calling forth decrease nonspecific resistance. These tendencies make increasingly urgent need for development more efficient ways to correct environmentally determined conditions. Purpose: comparative study i...

background : this study was designed to investigate whether there was an association between abo blood groups and car­diovascular risk factors in healthy population. methods : in this cross-sectional study, risk factors screening for cardiovascular disease(cvd) on 5000 healthy persons of go­lestan province, northern iran, in 2005 was estimated by a questionnaire that included age, sex, physical...

In this paper, without using the classification of finite simple groups, we determine the structure of  finite simple groups whose Sylow 3-subgroups are of the order 9. More precisely, we classify finite simple groups whose Sylow 3-subgroups are elementary abelian of order 9.

introduction: this survey was undertaken to assess self-reported oral health behaviour, oral and systemic conditions among functionally independent population in talash, north of iran. the question is whether there are any relationships between these variables. materials and methods: a total of 203 elderly subjects enrolled in this study 125 (61.5%) were males and 78 (38.4%) were females. all s...

Locating public services for nomadic population groups is a difficult challenge as the locations of the targeted populations seasonally change. In this paper, the population groups are assumed to occupy different locations according to the time of the year, i.e., winter and summer. A binary integer programming model is formulated to determine the optimal number and locations of primary health u...