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Division of labor --- Economics

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Meiosis, the process of forming gametes in preparation for sexual reproduction, has long been a focus of intense study. Meiosis has been studied at the cytological, genetic, molecular and cellular levels. Studies in model systems have revealed common underlying mechanisms while in parallel, studies in diverse organisms have revealed the incredible variation in meiotic mechanisms. This book brings together many of the diverse strands of investigation into this fascinating and challenging field of biology.

Meiosis. --- Reduction division (Genetics) --- Cell division --- Karyokinesis --- Medical genetics

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Avec une rapidité surprenante, l'Allemagne a retrouvé son unité en 1990. Cet événement majeur de la fin du XXe siècle marquera profondément l'évolution interne du pays et l'avenir de l'Europe. Ce livre veut fixer des repères pour saisir la portée des vastes mutations en cours. Des spécialistes confirmés de l'Allemagne font le point sur les évolutions les plus significatives, aidant ainsi à comprendre ce qui se prépare de l'autre côté du Rhin. With surprising speed, Germany was reunited in 1990. This major evenement of the end of the 20th century marked deeply the country’s internal development and the future of Europe. Accomplished specialists of Germany assess the most significant developments, on the important economical, societal and cultural changes. Political structures are transformed; reunited Germany is still looking for its new role on the international scene and questions its new identity.

History --- division de l'Allemagne --- réunification --- Europe

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The book gives an in-depth study of the principles of the spread spectrum techniques and their applications in mobile communications. It starts with solid foundations in the digital communications that are essential to unequivocal understanding of the CDMA technology, and guides the reader through the fundamentals and characteristics of cellular CDMA communications. Features include:* A very clear and thorough description of the principles and applications of spread spectrum techniques in multi-user mobile communications.* Matlab-based worked examples, exercises and practi

Code division multiple access. --- Wireless communication systems.

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To keep up with the ever-increasing data transmission speed needs, data center interconnects are scaling up to provide multi-Tbit/s connectivity. These links require a high number of WDM channels, while the associated transceivers should be compact and energy efficient. Scaling the number of channels, however, is still limited by the lack of adequate optical sources. In this book, we investigate novel chip-scale frequency comb generators as multi-wavelength light sources for Tbit/s WDM links.

Wavelength division multiplexing. --- Mode-locked lasers.