ABSTRACT
Underground corrosion is referred to the most difficult types of corrosion in connection with that it is multifactorial and differs in progressive dynamics of the participation of each parameter in the process of destruction of the metal. With the aim of the evaluation of the informativeness of the index of the biocorrosion activity caused by the influence of various factors to determine the character of the soil aggressiveness in the district of pipeline laying there was studied the complex of microbiological and physical-chemical indices). There was determined the amount of sulfur cycle bacteria (autotrophic thiobacteria and sulphate-reducing bacteria), the total concentration of sulfur and iron in the soil samples adjacent to the surface of the underground pipelines in the territory of the Khanty-Mansi Autonomous District of Yugra, and the ratio of these indices with a specific electrical resistance of the soil. There was established the predominance ofsamples with weak aggressiveness of the soil (55.17% of cases), with the criterion ofbiocorrosion soil activity of 2,44 ± 0,19. The results show significant differences in the thiobacteria content and mobile iron in the studied soil-ground samples. There was revealed a direct correlation of the average force of concentrations of identified bacteria and iron content in the soil. There was shown the necessity of the implementation of dynamic control and the development of methods of protection of metal structures to prevent biocorrosion in the design and in the process of the operation of the pipeline.
Subject(s)
Biochemical Phenomena , Biophysical Phenomena , Soil Microbiology , Soil/chemistry , Corrosion , Ecosystem , Gram-Negative Chemolithotrophic Bacteria/isolation & purification , Sulfur-Reducing Bacteria/isolation & purificationABSTRACT
The aim of the study was the assessment of the protein-vitamin correction of the food ration of student-athletes in the precompetitive period The relevance of nutritional support was determined by irrational and unbalanced nutrition and comorbidities in students, not infrequently due to insufficient material support of students, the schedule drawn up without taking in account their biorythmological activity. Enrichment of the diet of student-athletes was performed with the use of normoprotein--dry composite protein mixture (DCPM) in daily dose of 30 g). Normoprotein is a source of highly digestible proteins, dietary fibers, vitamins, minerals, taxifolin, which is recommended, also for the dietary (medical and preventive) nutrition of children in organized collectives. A prerequisite for the administration of the drug was the assessment of the health in 50 student-athletes in the Health Center questioning of students for the acquisition of information concerning the presence or absence of complaints, allergic reactions, evaluation of the life quality, and also written consent for the use of normoprotein.
Subject(s)
Athletes , Nutritional Status , Nutritional Support/methods , Schools, Medical , Students , Universities , Adolescent , Adult , Female , Humans , Male , Young AdultABSTRACT
Socioeconomic transformations and the poor environment of an industrial megalopolis negatively affected quality of life and morbidity rates in students (n = 2160). Academic intensity contributed to an increase in overall morbidity and morbidity from nervous system involvement. The regional sociohygienic monitoring of high-school training conditions within the framework of the surveillance system substantiates programs to prevent worse health and life quality in high school students.
Subject(s)
Environmental Monitoring/methods , Health Surveys , Hygiene/standards , Students , Universities/standards , Adolescent , Adult , Disease/etiology , Environmental Monitoring/statistics & numerical data , Female , Health Status , Humans , Male , Models, Theoretical , Nutritional Status , Socioeconomic Factors , Student Health Services/organization & administration , Student Health Services/standards , Student Health Services/trends , Surveys and Questionnaires , Young AdultABSTRACT
Complex impact of various factors on development of chronic diseases among adolescents aged of 15-17 years and dwelling in districts of Omskaya oblast is analyzed. It is noted that out of twelve factors four of them are of educational pedagogic category. Besides, one of these (the twelfth) takes second rank place emphasizing that making necessary hygienic conditions of education is of highly significance for maintenance of adolescent health. The most pronounced effect on development of chronic pathology among adolescents is produced by habitation conditions, timeliness and quality of applied health-improving medical activities during childhood. All educational pedagogic and some other factors can be controlled setting up thereby reserve for decreasing adolescent morbidity.
