[Evaluation of occupational risk for health of operators of petrochemical production and their physiological and hygienic stipulation].

The modernization of the technological process in the petrochemical industry has reduced the degree of influence of adverse factors of the production environment, but not eliminated the adverse impact of industrial environmental factors on the health ofworkers. Factors failed to meet hygienic standards in the workplace of operators were shown to be are electromagnetic radiation, chemicals (ammonium, nitrogen dioxide), industrial lighting. In addition operators ' work is characterized by high intensity of the labor process. Therewithal the labor of operators is characterized by the high intensity of the working process. For the operators ofpetroleum industry there is typical the risk from the combined exposure of the complex of chemical substances and noise, this risk proves both to be both potentially dangerous and increase in dependence on doses offactors and length of service. The level of individual professional risk in 32% of the operators is high; risk group for the profession is defined as high. In most cases, in operators of both small and long experience there was established the decline in the functional state of the central nervous system, the predominance of sympathetic tone in the regulation of adaptive processes, reduced reactivity of the autonomic nervous system and the more the length of service among operators the more the number of cases with poor adaptation and its breakdown.

[The impact of nutrient prosperity of the body on the alimentary status of junior high school pupils within the framework of the implementation of health-saving technologies].

In the work there was performed the assessment of the actual nutrition of high school pupils, its impact on the nutritional status and efficiency of the implementation in the modern educational process certified vitamin-mineral complexes as a health-saving component of the optimization of rations. The introduction of additional vitamin-mineral complexes into the food of high school pupils was established to lead to the optimization of nutrition content by most of macro- and micronutrients, which in turn contributed to the increase in the number of children with an adequate supply of the body with vitamins and also contributed to the increase of students with a satisfactory adaptation by 44.3%, cases having sufficient performance reserves by 48.4% and the decrease of the number of children with sharply reduced functional reserves by 4 times.

[Physiological and hygienic characteristics of working conditions of workers in petrochemical enterprise].

The paper presents results of a study of the functional state of major workers of the refinery "Gazprom Neftekhim Salavat" when exposed to hazardous working conditions. The results have shown adverse effects of chemical factors of working environment and the intensity of the labor process on the functional state of the body of workers that shows a violation of efficiency and adaptability of the their organism to the working conditions.

[Role of the nutrients supply in the functioning of major organs and systems of the body of students].

The article presents the results of a study of factual nutrition of first-year students of Orenburg Medical Academy and the assessment of its impact on nutritional status. These data suggest that nutrition students is irrational and inadequate due to low nutritional value of diets, inadequate intake of macro-and micronutrients, which lead to a breach of nutritional status of students, as evidenced by the increase in the percentage of students with significant and sharply reduced functional capabilities of the body and deviations in physical development.

[Influence of environmental factors on the pediatric population in the urbanized and rural areas of the Orenburg Region].

The paper gives the data of studies establishing the regularities of formation of the composition, levels, and space-time features of pollution of ambient air, soil, and drinking water in the risk of their influence of the health status of the children residing in the urbanized and rural areas. The studies have ascertained that the magnitude of a complex anthropogenic load of the environment on the pediatric population living in the urbanized area is 4.9 times higher than that in the rural area. The priority chemical pollutants are different in the urbanized and rural areas. The urbanized area has been found to be most unfavorable as to the risk of development of non-carcinogenic effects with the calculated hazard indices being kept in mind. The same trend is shown for the calculated population risk indices.

[Impact of high-technology teaching systems on the formation of gymnasia pupils' adaptive capacities].

The paper presents the results of studying the adaptive capacities in first-, fourth-, and fifth-form gymnasia pupils taught by the system developed by L. V. Zankov (Group 1) and M. Montessori (Group 2), by evaluating the functional status of the cardiovascular and central nervous systems and determining the level of biological adaptation. The findings are suggestive of the better adaptation and functional status of the central nervous and cardiovascular systems in the gymnasia pupils taught by the educational-and-developing program worked out by L. V. Zankov, which is likely to be explained by the training effect of functional capacities and by the formation of a long-acting effect that is shown in the better adaptation values on transition to the middle link of education.

[Hygienic assessment of trace element levels in drinking water and food products within the system of socio-hygienic monitoring system]. / Gigienicheskaia otsenka soderzhaniia mikroélementov v pit'evoi vode i produktakh pitaniia v sisteme sotsial'no-gigienicheskogo monitoringa.

The paper provides a comprehensive hygienic assessment of the levels of the essential and toxic trace elements chosen in terms of regional features in drinking water and foodstuffs of locally manufactured products. Priority pollutants of drinking water and foodstuffs are defined in the eastern, western, and central lands of the Orenburg Region. A significant imbalance of essential trace elements was revealed. Daily oral intake of priority and toxic trace elements were calculated in foodstuffs and drinking water.