[Population reproduction as a subject of demography]. / O vosproizvodstve naseleniya kak predmete demografii.

"Two standpoints on...population reproduction as...a subject of demography are considered. According to the first one reproduction is identified with natural movement, according to the second one, natural movement of the population forms an abstract component [of] reproduction." (SUMMARY IN ENG AND UKR)

[Some problems of intensification of studies on population self-reproduction]. / Nekotorye problemy uglubleniya issledovanii samovosproizvedeniya naseleniya.

"The paper deals with the most important debatable problems of theoretical demography. It is stated that modern demography is not a harmonious scientific system but a conglomeration of the data on different aspects of the population and its reproduction....A conclusion is made that a number of important problems in modern demography cannot be solved when approaching the given population as [a] human population." (SUMMARY IN ENG)

[The inadequacy of the "narrow understanding" of population reproduction for disclosing its self-reproducing mechanisms]. / O neadekvatnosti "uzkogo ponimaniya" vosproizvodstva naseleniya resheniyu zadachi raskrytiya mekhanizma ego samovosproizvedeniya.

PIP: The author points out limitations within demographic analysis of a narrow definition of the concept of population reproduction. The concept of measuring not only quantitative but also qualitative aspects of population reproduction is considered. (SUMMARY IN ENG)^ieng

[Effect of Fe3+ ions on Thiobacillus ferrooxidans oxidation of ferrous oxide at various temperatures]. / Vliianie ionov Fe3+ na okislenie Thiobacillus ferrooxidans zakisnogo zheleza pri razlichnoi temperature.

The inhibition of the rate of ferrous iron oxidation by Thiobacillus ferrooxidans with ferric ions was shown to depend on their concentration, the temperature of the medium, and the phase of the cultural growth. Ferrous iron oxidation was inhibited with ferric ions both at low (below 1.0 g/l) and high (ca. 10 g/l) concentrations, the process being temperature dependent: the rate of inhibition decreased with a fall of the temperature. The bacterium was most sensitive to unfavourable Fe3+ concentrations at 8-26 degrees C during the lag phase; Fe2+ oxidation was inhibited during the exponential phase of growth only at 26 degrees C. The Ki for Fe3+ at 27, 10 and 5 degrees C were 3.09-3.39, 11.4-22.8 and 46.0 g/l Fe3+, respectively. Therefore, the affinity of the enzyme for the inhibitor Fe3+ decreases with a fall of the temperature.

[Insufficiency of the urea-synthesizing function of the liver and its correction in mechanical jaundice]. / Nedostatochnost' mochevinopinteziruiushcei funktsii pechnei i ee korrektsiia pri mekhanicheskoi zheltukhe.

From the moment of the rise of blood bilirubin level extrahepatic bile stasis is accompanied by hepatic insufficiency, the first preclinical manifestation of which is the increase of urea level in the liver tissue. Parallel with the hyperbilirubinaemia there is the increase of inhibition of urea-synthetizing liver function, resulting in the rise of ammonia level in the liver tissue and in the blood, which has both local and general toxic effect. The injection of retabolil 2 to 7 days preoperatively produces a favourable clinical effect, which permits to recommend this procedure to be introduced into the preoperative therapeutic complex in case of mechanical jaundice.