Gigiena truda i professional'nye zabolevaniia最新文献

Grounded and worded concept stresses that the intensity of regulating mechanisms must be taken into account in evaluating the difficulty and intensity of work, criteria of intensity are suggested. Growth of intensity index, centralized administration or considerable number of correlations (above the average on the whole industry) and more synchronized functions during the work improve the intensity of work by one step above the results of the simple physiological evaluation of work intensity.

Cytochemical parameters of peripheral neutrophils were studied in the experimental pattern of combined action of chlorine and phosphorus containing organic pesticides and different levels of dynamic physical strain. Studies revealed the protective effect of the minimal physical strain and aggravating effect of the moderate and maximal strain leading to the depressed aerobic oxidation and increased anaerobic glycolysis.

The general morbidity and transitory disablement in workers engaged into superphosphate production was assessed in connection with age, sex and length of service. The results proved its possibility to serve as informative criteria for the hazardous occupational conditions evaluation.

The functional status and capacity for work were studied in humans exposed to the combined occupational and natural (everyday mountainous migrations) factors. Occupational factors and vertical migration appeared to effect synergistically on functional systems, which necessitates the further investigations concerning the work normalization in mountainous conditions.

Features of metal's co-action according to the results of toxico inetic studies concerning the binary elemental combinations infused into the body are discussed. The investigations revealed that the stoichiometric laws of metals' co-action depended on the way the metals were infused by and the scheme of their combined action, on their qualitative and quantitative composition. The quantitative changes in the metabolism of metals during their co-action were found the most important. These changes may serve to evaluate and forecast the combined action of metals. The role of individual metallic qualities in their metabolic co-action was proved to be important.

Electronic industry workers, whose work involves visual strain were examined. The work appeared to be characterized by a plenty of unfavourable factors: high visual and emotional intensity, considerable strain of the locomotor apparatus in supporting a fixed sitting posture. The micromountain workers were exposed to poor ionized and ozonized air conditions combined with high bacterial contamination and lack of the UV rays in the air. Examinees showed markedly changed health and functional status of the main body systems. A complex of hygienic, prophylactic, physiological, technological and medical measures yielded remarkable results. Working conditions of electron industry workers are to be regulated.

The incidence of diseases of the peripheral nervous system was studied during the voyage in different groups of sea sailors. The diseases due to overcooling and overexercise (cervico-thoracic and lumbosacral radiculosis) appeared to predominate. Methods of electroneurostimulation of acupuncture points and reflexogenic zones, lymphotropic therapy were used in the treatment administered on board the ship.

Cytogram of pulmonary lavage fluid was studied in 50 workers al risk of developing silicosis. Workers with long length of service showing no radiographic signs of silicosis had normal cytogram of pulmonary lavage fluid, except for slightly increased neutrophil counts. Cytogram of patients with first recognized silicosis were characterized by elevated lymphocyte count. Neutrophil level increased in chronic silicosis. Cytogram of pulmonary lavage fluid is considered valuable for the diagnosis and prognosis.