Titlebook: Spermatogenesis — Fertilization — Contraception; Molecular, Cellular Eberhard Nieschlag,Ursula-F. Habenicht Conference proceedings 1992 Sp

GENRE

有害处

Wolfgang Schulze,Andrea Salzbrunnis the high-frequency field of light, the other is the internal low (possibly dc)-frequency field associated with the deformation of a solid subjected to a mechanical stress (photoelasticity) or stemming from an externally applied electric field. In the wake of the invention of the laser thirty year

forestry

莎草

R. John Aitken,Margaret Paterson,P. Thillai Koothan

atrophy

Characterization of Inhibitory and Stimulatory Effects of Zona Pellucida Glycoproteins on the ProacProacrosin, the zymogen form of the serine protease acrosin, is located in the acrosome of mammalian spermatozoa. During the process of gamete interaction, acrosin is believed to assist sperm penetration of the surrounding egg shell, the zona pellucida. This penetration is supported by a proteolytic attack of acrosin against the zona glycoproteins.

支架

Patrimony

–FER

Bernard Jégou,Viqar Syed,Pascal Sourdaine,Stephen Byers,Nadine Gérard,Juan Velez de la Calle,Charlesernal states and of producing either of two different stable outputs. At any given time the internal state and corresponding output depend on the history of operation of the device; by temporary adjustment of the inputs it should be possible to set or reset the device to either state. Thus the lates

Commonplace

推崇

Luciano Martini,Roberto C. Melcangi,Fabio Celotti field embraces esoteric aspects of fundamental physics as well as themes of interest to applied science. Nonlinear optics in solids dates back to the beginning of the nineteenth century when Brewster discovered the photoelastic effect in gels [1]. At the end of the century, Kerr discovered the quad