[Immunobiological properties of bacteria].

Opsonins found on the surface of microbial cells in vivo and ex vivo are characterized. The possibility of their visualization by immune electron and fluorescent microscopy has been demonstrated. Opsonins are shown to play a role in immune-mediated adhesion of bacteria to phagocytes and erythrocytes and formation of virus-bacterium associations.

[Distribution of labeled octadecane and its metabolites in rat organs and tissues in chronic peroral administration].

Chronic experiments were made to study cumulation and metabolism of 114C-octadecane in rat organs and tissues. A progressive utilization of the indicator by the animals' body was disclosed, the highest content of the label being found in the adipose tissue and adrenals. Octadecane does not excrete with the urine.

[Effect of heating on the benz(a)pyrene content in wood pyrolysis products].

Benz(a)pyrene was detected in the ether-insoluble fraction of acidic water on being heated to 100 and 300-450 degrees C, while heating of total acidic water and settled tar at 300-450 degrees C did not cause any changes in the content of this compound. The obtained results suggest that the ether-soluble fraction of acidic water contains compounds which promote benz(a)pyrene breakdown or inhibit its synthesis from products of timber pyrolysis.

[Model of the dynamics of the body's water metabolism under normal and pathologic conditions].

A theoretical and experimental study of metabolic processes is presented. Dynamics of water exchange in the living organism under normal and pathological conditions is described. The investigation performed states that the coefficients of analytical equations and constant removal of tritium water from the organism depends on the form and degree of pathology, i.

[Effect on water metabolism of body posture relative to the gravity vector].

A combined effect of hypokinesia and body position at different angles to the gravity vector on the water content and rate of its metabolism was studied. It was shown that bed rest reduced total water losses and the rate of its metabolism. It was body position as related to the gravity vector rather than bed rest that influenced the total water content in the body.

[Effect of overheating products of wood hydrolysis on 3,4-benzpyrene output].

Under study was the effect of overheating of wood pyrolysis products at 600 degrees C on the content of 3,4-benzpyrene in them. Overheating only of the water portion of pyrolysis products would increase considerably its BP content, on account of it the total output of the carcinogen is increased. While overheating of total pyrolysis products results in still greater increase of total BP output on account of its concentration rise both in the water portion and resin.

[Differences in the mechanisms of low-temperature and high-temperature processes in the formation of 3,4-benzopyrene during wood pyrolysis].

In 4 series of experiments a dependence between 3,4-benzpyrene (BP) output and the temperature of fir sawdust pyrolysis under isothermic conditions has been investigated. The experimental series differed in the duration of wood pulp particles stay in the reaction zone (tau). Also EPR spectra of pyrolysis products have been recorded.