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Zustand: New. Walter Heape, F.R.S.: A Pioneer of Reproductive Biology (Paperback or Softback).

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Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - InhaltsangabePrologue.- 1 Collection of Gametes in Laboratory Animals and Preparation of Sperm for in Vitro Fertilization.- Collection of Ova for in Vitro Fertilization.- Methods Presently Used for Sperm Collection.- Differences in Sperm as a Function of Collection Method.- Preparation of Ejaculated Sperm for Use in in Vitro Fertilization.- Methods Used to Induce Capacitation of Ejaculated Sperm.- References.- 2 Ovum Collection and Induced Luteal Dysfunction in Primates.- Ovum Collection.- Evaluation of Corpus Luteum function.- Induced Folliculogenesis.- Discussion and Conclusions.- References.- 3 Analysis of Culture Media for in Vitro Fertilization and Criteria for Success.- Culture Media.- Criteria for Success.- Conclusions.- References.- 4 In Vitro Culture of the Zygote and Embryo.- General Observations on Fertilization and Early Development in Vitro.- Metabolic Requirements for Embryonic Development in Vitro.- Complex Media and Biological Fluids for Embryo Culture.- Conclusions.- References.- 5 Mechanisms of Fertilization in Mammals.- Epididymal Maturation and Capacitation of Spermatozoa.- Acrosome and Acrosome Reaction.- Hyperactivation of Spermatozoa.- Interaction of Spermatozoa with the Cumulus Oophorus.- Interaction of Spermatozoa with the Zona Pellucida.- Sperm-Egg Fusion.- Decondensation of the Sperm Nucleus and Development of Sperm and Egg Pronuclei.- Conclusions.- References.- 6 The Mammalian Egg's Block to Polyspermy.- Zona Reaction.- Zona Reaction Mechanisms.- Egg Plasma Membrane Block.- Block to Polyspermy Mechanisms.- Conclusions.- References.- 7 Gamete Interaction in the Sea Urchin A Model for Understanding the Molecular Details of Animal Fertilization.- Fertilization in the Sea Urchin.- The Plasma Membrane of Sea Urchin Sperm.- Sperm-Specific Surface Antigenicity Common to Seven Animal Phyla.- Isolation of Acrosome Granules and Identification of Bindin as the Major Component Involved in Sperm Adhesion.- Identification of a Bindin Receptor Glycoprotein from the Egg Vitelline Layer.- Conclusions.- References.- 8 Awakening of the Invertebrate Egg at Fertilization.- Sperm-Egg Fusion and the Rapid Block to Polyspermy.- Insertion and Localization of Sperm Components in the Egg.- The Cortical Reaction and Extracellular Peroxidative Reactions.- Activation of Egg Metabolism.- Conclusions.- References.- 9 Chromosome Aberrations and Mammalian Reproduction.- The Newborn.- Postimplantation Embryos.- Preimplantation Embryos.- Germ Cells.- Conclusions.- References.- 10 The Effects of Chromosomal Aneuploidy on Early Development Experimental Approaches.- Products of Aneuploid Mouse Embryos.- The Consequences of Monosomy.- Identical Twin Embryos.- Conclusions.- References.- 11 Blastocyst Fluid Formation.- Na+/ K+ ATPase and Blastocyst Fluid Accumulation.- Oxygen Consumption and Active Transport.- Developmental Aspects of Solute Transport in Blastocysts.- Conclusions.- References.- 12 Water and Electrolyte Transport by Pig Chorioallantois.- Porcine Allantoic Fluid Volume and Composition.- Effect of Lactogenic Hormones on Transport Properties of the Porcine Chorioallantoic Membrane.- Effect of Bromocryptine on Allantoic Fluid Volume and Electrolyte Composition at Day 30 of Gestation.- Discussion and Conclusions.- References.- 13 Critical Review of Embryo Transfer Procedures with Cattle.- Normalcy of Superovulated Ova.- A Note on Experimental Design.- Morphological Evaluation of Embryos.- Morphological Normalcy of Superovulated Ova with Time.- In Vitro Culture of Bovine Embryos.- Stage of the Estrous Cycle to Initiate Superovulation.- Regimens for Inseminating Superovulated Cows.- Side of Transfer.- Stage of Embryonic Development and Surgical Transfer.- Donor-Recipient Estrous Cycle Synchrony.- Factors Affecting Pregnancy Rates after Nonsurgical Transfer.- Summary and Conclusions.- References.- Epilogue. …

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Paperback. Zustand: New. Print on Demand. This book reports on the 1937 United States Census of Unemployment. Following the Great Depression, the government conducted a survey of the unemployed to better serve and understand the needs of its citizens. The survey included questions about income, occupation, age, dependents, and working hours. In addition to the unemployment survey, the book includes the findings of a subsequent enumerative census, designed to check the accuracy of the voluntary survey. Through these two surveys, the author was able to make inferences about the population of workers not captured in the original survey, like housewives supplementing their family income and those only seeking work due to circumstance rather than financial necessity. This book provides a snapshot of the experiences of the American worker in the late 1930s. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. …

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