I. Vitamin D Endocrine System R ESEARCH directed at defining the molecular mode of
action of vitamin D is currently at its apex. There is now evidence implicating the essential …

1α, 25-Dihydroxyvitamin D3 (1, 25) is a structurally unique steroid hormone because it not
only possesses the complete 25-hydroxycholesterol side chain, but most notably, it …

Photochemistry of vitamin D and its isomers and of simple trienes Page 311 I. 11. 111. IV. V.
VI. VII. VIII. IX. X. Photochemistry of Vitamin D and Its Isomers and of Simple Trienes HJ C …

Cocrystallization has emerged over the past decade as an attractive technique for
modification of the physicochemical properties of compounds used as active pharmaceutical …

Drug–drug co-crystallization could realize combination drugs at a molecular level. Two
polymorphic co-crystals between VD2 and VD3 were successfully designed and …

To overcome the disadvantages of a small starting set in MULTAN a technique is described
whereby a large number of phases are given random values with low weights and then …

A series of substituted poly (p-phenylenediyne) s (1a− f) was synthesized by the palladium-
catalyzed cross-coupling condensation of terminal dialkynylalkanes with substituted …

Different expressions of the maximum-entropy estimates of the electron density function,
corresponding to different prior information are obtained. They show that no general …

A probabilistic approach is described which is able to estimate triplet cosine invariants via
their second representation. The experimental tests on structures of different complexity …

The application of the condition that a true set of phases for a substantial subset of
normalized structure factors should satisfy Sayre's equation leads to a phase-refining …