Titlebook: Mechanism of Fertilization: Plants to Humans; Brian Dale Conference proceedings 1990 Springer-Verlag Berlin Heidelberg 1990 Activation.Bef

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C. M. Guilluy,T. Gaude,C. Digonnet-Kerhoas,A. Chaboud,Ph. Heizmann,C. Dumas experiments on the perception of emotions narrated in this book. Two databases consisting of realistic, dynamic, and mutual related visual and vocal emotional information are described. The databases were constructed to allow an actual comparison between the effectiveness of visual and vocal cues i

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Ultrastructure and AG Staining of Echinoderm Spermatogenesise review the process of acrosome formation in the Echinodermata with emphasis on those aspects which still remain obscure. Silver nitrate staining at the ultrastructural level is also discussed and its application to the study of echinoderm spermatogenesis is presented.

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Tyrosine Phosphorylation of MPF and Membrane Proteins During Meiotic Maturation of Starfish Oocytesil first polar body emission, then decreased upon completion of meiosis. Endogenous . phosphorylation of cortices showed a high tyrosine kinase activity towards a 68-kDa protein but no difference between cortices from oocytes treated or not with the hormone..These findings suggest that tyrosine phos

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Protein Synthesis and Protein Phosphorylation as Regulators of MPF Activityof interphase-type resting nuclei. The same cytological effects were promoted by the without affecting protein synthesis. Similar results were obtained with sea urchins, amphibians and mammals..We conclude that (1) newly formed short lived proteins are required for maintaining metaphase 1 conditions