منابع مشابه
Synapsis and meiotic recombination analyses: MLH1 focus in the XY pair as an indicator.
BACKGROUND Anomalies in meiotic prophase I have been related to partial or total meiotic arrest. These anomalies include an abnormal synaptic process, resulting in disorders in meiotic recombination. METHODS In the present study, we analyse primary spermatocytes from 12 infertile men (four with non-obstructive azoospermia, six with oligoastenoteratozoospermia, one with astenoteratozoospermia ...
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THE COMPUTER INDUSTRY IS EXPERIENCING a major shift: improved single-processor performance via higher clock rates has reached its technical limits due to overheating. Fortunately, Moore’s law still holds, so chip makers use transistors to boost performance through parallelism. Modern chips consist of multiple microprocessors (also called cores), buses, and cache memory on the same chip. As of t...
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A COMPUTER SYSTEM’S security can be compromised in many ways— a denial-of-service attack can make a server inoperable, a worm can destroy a user’s private data, or an eavesdropper can reap fi nancial rewards by inserting himself in the communication link between a customer and her bank through a man-in-the-middle (MITM) attack. What all these scenarios have in common is that the adversary is an...
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AT THE FIRST software engineering (SE) conference in 1968, Doug McIlroy introduced the concept of software components during his keynote speech, “Mass-Produced Software Components.”1 That components hold such an esteemed place in SE history should come as no surprise: componentization is a fundamental engineering principle. Top-down approaches decompose large systems into smaller parts—componen...
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EVER SINCE THE software in dustry diverged from the computer manufacturing industry, software firms’ business models have been in flux. Over the last decade, the primary software industry has tended to be seen as a combination of a US$200-billion software product industry (with products comprising either enterprise solutions or packaged mass-market software) and a $500-billion professionalservi...
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ژورنال
عنوان ژورنال: The Journal of the Institute of Television Engineers of Japan
سال: 1988
ISSN: 0386-6831,1884-9652
DOI: 10.3169/itej1978.42.386