Nataliya Ivanova

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A glycoside, holothurin A1 has been isolated from the polar glyosidic fractions of the holothuriansH. floridana andH. grisea. The complete structure of the glycoside has been established; it is: 3β-[0-(3-0-methyl-β-D-glucopyranosyl)-(1 → 3)-0-β-D-glucopyranosyl-(1 → 4)-0-β-D-quinovopyranosyl-(1 →(More)
A probabilistic model describing functioning of the elements of a neuronal population is suggested. The model includes subsystems: synaptically interconnected inhibitory and excitatory neurons. The probability of the occurrence of the intercellular signal at varying levels of the endogenous transmitter and the effects of exogenous ligands (agonists,(More)
Studied was the effect of gamma-treatment on the growth and development of Tr. foetus in cultures. The experiments were carried out with two strains (180 and 2548) supplied from the Academy of Sciences, Tallin, ESSR (USSR). Irradiation was performed by means of increasing rates of gamma treatment (from 1000 to 1500000 rad) applied either once or twice at(More)