vrsotsarga-Studies on Grhya Rituals (IV)

Reproductive rituals

TEIZO OGAWA (editor), History of obstetrics (Proceedings of the Seventh International Symposium on the Comparative History of Medicine-East and West), Tokyo, Division of Medical History, Taniguchi Foundation, 1984, 8vo, pp. viii, 283, illus., [no price stated]. ANN OAKLEY, The captured womb. A history of the medical care of pregnant women, Oxford, Basil Blackwell, 1984, 8vo, pp. x, 351, illus.,...

Anonymous Rituals

Religion and ritual have been characterized as costly ways for conditional cooperators to signal their type, and thus identify and interact with one another. But an effective signal may be prohibitively expensive: if the cost of participation is too small, freeriders may send the signal and behave selfishly later. However, if the ritual reveals only the average level of signaling in a group, fr...

Studies on Self-Sterility. IV. Selective Fertilization.

INTRODUCTION .................................................................. 346 Discussion of the problem ..................................................... 348 Pollen-tube frequency distributions ............................................. 349 Influence of growth of compatible pollen tubes upon incompatible pollen tubes.. .. 352 SUMMARY AND DISCUSSION ....................................

Structural studies on human type IV collagen.

Type IV collagen was isolated from limited pepsin digests of human placenta by selective salt precipitation at acidic and neutral pH. The native protein was resistant to human skin collagenase but was cleaved by a rat mast cell protease. Molecular sieve chromatography of the reduced and alkylated material separated relatively homogeneous components of molecular weight 140,000 (140K) and 100,000...

Studies on Plasma Protein. IV. Leprosy