[Qualitative and quantitative evaluation of the information flow regarding the "medical insurance" problems].

The presented qualimetric evaluation of documentary information flow permitted one to identify some of its characteristics, single out a group of nuclear and perinuclear journals containing about 70 percent of the entire documentary flow publications on the given problem and provide recommendations on the organization and retrieval search in the reference-information fund of our country.

[Effect of biologically active splenic factors on the functional state of mast cells in rats].

The effects of "splenic protein-free extract" and its fractions as well as splenin on the functional activity of the rat mast cells have been studied. It is established that this extract unlike splenin has no histamine-releasing activity, however it is able to inhibit histamine release from mast cels under the influence of specific liberator--substance 48/80. The found effect is associated with biologically active substances contained in fraction III of splenic protein-free extract.

[Effect of humoral factors of the spleen after irradiation].

It is stated that therapeutic effect of humoral factors isolated from the cattle spleen is associated with its influence on alpha 2-macroglobulin (alpha 2-MG) performing a protective function. The results obtained permit recommending the isolated preparations to increase total resistivity of the organism under irradiation.

[Activity of endopolygalacturonase in culture fluid of experimentally prepared polyploid cultures of Saccharomyces vini].

The action of colchicine solutions on a diploid Saccharomyces vini culture used in viniculture yielded three polyploid strains. The strains differ from the parent culture in their cell morphology and a higher endopolygalacturonase activity.