[Optimal personal resource as a determinant of adaptational strategies of shift workers in Far North].

Development of mineral deposits in Far North and Arctic regions is a priority in Russian Federation. Result of shift workers' adaptation in Far North is formed adaptational strategy. Environmental and personal resources determine adaptational strategies in occupational activity of shift workers.

[The concept of "psychological risk" in the professional activity of employees of fly-in fly-out method of labor organization on the example of oil and gas companies in the Far North].

Professional work in shift team in the Far North contributes to the formation of unfavorable functional states and the development of destructive personality traits of employees, which lead to a decrease in the level of mental health, productivity and work efficiency With the aim to predict the professional efficiency of the rotational personnel it is necessary to determine the probability of negative psychological states, properties and qualities that will prevent its implementation, i.e, the psychological risks in professional activities. Psychological risk in the professional activity is the probability of occurrence of a professional personal destructions and the formation of unfavorable functional states of employees when performing job functions due to the prolonged negative impact of social-household and occupational factors in the lack of personal and environmental resource.

Climate variations and salmonellosis in northwest Russia: a time-series analysis.

Associations between monthly counts of all laboratory-confirmed cases of salmonellosis in Arkhangelsk, northern Russia, from 1992 to 2008 and climatic variables with lags 0-2 were studied by three different models. We observed a linear association between the number of cases of salmonellosis and mean monthly temperature with a lag of 1 month across the whole range of temperatures. An increase of 1 °C was associated with a 2·04% [95% confidence interval (CI) 0·25-3·84], 1·84% (95% CI 0·06-3·63) and 2·32% (95% CI 0·38-4·27) increase in different models.

Ethnic medicine: from fundamental studies to practice of health preservation of the indigenous peoples in the North.

Objectives: We carry out social-hygienic and medical examinations of the indigenous population of the Russian northern territories.

Study Design: Mobile medical teams examined the population of the most of settlements of the Nenets autonomous area.

Methods: The study of the peculiarities of the public health state of the indigenous people.

[Justifying the use of primary tissue culture method for evaluation of sodium fluoride safety in nutrition products].

Toxicity of sodium fluoride added to nutrition products is assessed through peculiarities of kidney tissue culture growth in vitro--over 75% inhibition of cell clumps growth supports high toxic influence of sodium fluoride, the growth decrease from 63% to 74% signifies lower degree, the growth inhibition less than 62% demonstrates very low toxicity of the chemical.

Scanning electron microscopy of rat erythrocytes during chronic alcoholic intoxication combined with protein and vitamin deficit.

Electron microscopy revealed morphological changes in erythrocytes from rats with chronic alcoholic intoxication kept on protein- and vitamin B-deficient rations. All animals had anisopoikilocytosis (up to 50%). Most pronounced changes in erythrocyte population attesting to accelerated erythrocyte aging (stomato- and microcytosis, discocyte swelling, and spontaneous hemolysis) were found in alcohol-fed rats kept on deficient ration.

[The functional-morphological characteristics of alcohol-induced pathology as dependent on the nature of the intoxication and its nootropil correction in an experiment].

The response of hematological system, carbohydrate metabolism and pathomorphologic alterations in the viscera were studied for four weeks on the model of chronic alcoholization in conditions of hydrolytic alcohol production. It is shown that maximal deviations of all the parameters in white conventional rats occur after receiving a combined ethanol dose in inhalation of a mixture of methanol and furfurol vapour. Less manifest pathology was revealed in simultaneous introduction of nootropil solution.

[The possibilities for using combined methods in typing Candida albicans for establishing epidemiological relationships].

An outbreak of candidiasis caused by C. albicans was registered in a neonatal intensive care unit of one of the hospital of St.-Petersburg at the period of August 12-October 8, 1992.

[An outbreak of nosocomial candidiasis in a hematology ward].

The aim of the present investigation was the study of the epidemic process of hospital candidiasis. The study was carried out from October 1991 to May 1992 in a hematological ward of one of the hospitals of St.-Petersburg on 9 patients with generalized forms of candidiasis: in 4 of them the disease was caused by C.

[Hematologic characteristics of patients with chronic alcoholism and people at risk].

Red cell functional and structural characteristics were studied in 146 patients with chronic alcoholism (CA) stage II, 47 workers of hydrolysis plant exposed to ethyl alcohol inhalations (risk group) and 100 healthy controls (male blood donors). It was found that CA patients and risk group subjects have similar changes in the erythron system, though in alcoholics these were much more pronounced: elevated count of red cells, blood hemoglobin concentration, hematocrit, increased mean size of red cells and intensity of 24-h erythropoiesis in reduced red cell survival. Scanning electron microscopy revealed abnormal surface architectonics of red cells.

[The dynamic hematological indices in alcoholic intoxication in relation to the ecological situation].

Comparative investigations of conventional male rat red blood with modelling of chronic alcohol-toxic influence of different types were carried out. Even a short alcohol intoxication developing against the background of ecologically unfavourable factors of the environment was shown to cause rapid development of decompensation of the blood system protective mechanisms. In these cases hematologic picture resembled that after long and hard alcohol abuse.

[The use of a method for the electrophoretic typing by protein profiles of bacteria in the genus Acinetobacter for epidemiological diagnosis].

On the basis of data obtained by the biological characterization and electrophoretic typing of Acinetobacter sp. cultures by the spectra of membrane proteins epidemiological relationships, routes of transmission and specific features of the circulation of strains causing purulent inflammatory diseases have been determined.

[Study of beta-lactamase activity of staphylococci from different sources].

The beta-lactamase activity of staphylococci isolated from the nasopharynx and skin of children with destructive affections of the lungs and from blood of patients with cardiovascular diseases subjected to surgical operations was determined with acidometric and microbiological procedures. Interrelation between synthesis of beta-lactamase by the staphylococcal strains and their resistance to beta-lactam antibiotics was demonstrated. No correlation of the antibiotic resistance and the taxonomic position of the staphylococcal strains was observed.

[A method of electrophoretic differentiation of the genera of glucose-nonfermenting gram-negative bacteria].

Glucose nonfermenting gram-negative bacteria were electrophoretically typed for the extracellular protein spectra. The method permits differentiation on the generic level the cultures of such bacteria, characterized by atypical biochemistry, within 10 hours.

[Preparation of an erythrocytic diagnostic agent based on staphylococcal proteinase].

Various methods for sheep red cell sensitization for the preparation of erythrocytic diagnostic agent from staphylococcal proteinase were under study. Sensitization with chromium chloride yielded the best results as regarded the sensitivity of the agent, optimal sensitizing dose, and sensitin consumption. The resultant erythrocytic diagnostic agent retained about 10% of the initial enzymic solution activity.