منابع مشابه
Two ways to condense
Two ways to condense G ene-rich euchromatin and largely untranscribed heterochromatin may follow different rules to prepare for mitosis, according to J. Robert Manak, Joseph Lipsick, and colleagues (Stanford University, Stanford, CA). From S phase to prophase, chromatin must replicate and then condense to prepare for mitosis. In most eukaryotic cells, euchromatin starts the process by replicati...
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Several things, that were not all of my own choosing, have conspired to keep me out of active participation in membrane events for a while. But the spectator sport that I call "membrane watching" is far from dull. It may be as rewarding as such things as birds, Congress, girls, bali games, or the Berkeley campus-particularly when you feel yourself somewhat qualified. Of course you lose the trem...
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It has been known since the rigorous result by Angelescu and Corciovei [A-C] that the answer to the question in the title is negative for the Perfect Bose Gas (PBG). The main result of the present paper is that the answer could become positive if the bosons are simultaneously embedded in a periodic external potential. We show that it is true for PBG, as well as for the Bose gas with a mean-fiel...
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As governments increasingly deliver services over the Internet, the opportunities for monitoring and surveillance of society increase. In public services to support the vulnerable, such as welfare, monitoring and surveillance functionality is often regarded by system designers as important components in defences against fraud and system misuse. However, the responses from the participants in th...
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ژورنال
عنوان ژورنال: Science
سال: 2012
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.336.6083.780-c