Natalia Vinogradova

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An analysis of the mechanism of the contraceptive action of the indicated new derivatives of 17~-hydroxyprogesterone showed that it is based on an inhibition of the incretion of LH in the active stage of the cycle. A consequence of the change in LH secretion is evidently a decrease in the metabolic activity of the endometrium when VII and estrogens are(More)
According to the Relevant Alternatives (RA) Theory of knowledge, to know that something is the case is to have ruled out the relevant alternatives. The conception of knowledge in epistemic logic also involves the elimination of possibilities, but without an explicit distinction, among the possibilities consistent with an agent’s information, between those(More)
It could be assumed that, in analogy with the compounds already studied, quaternary salts + l If"" with N--CH=NHCOR or N--CH2N-CO groupings can also be converted into the initial tertiary amines as the result of hydrolysis. But they should differ from their oxygen-containing analogs in the rate of hydrolysis, lipophilicity, and possibly in other properties,(More)
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