منابع مشابه
What Makes Up
20 M A X P L A N C K R E S E A R C H 1 / 2 0 0 9 Nature shuns perfect symmetry. If it didn’t, the universe would contain no matter – only radiation. For half a century now, physicists have been searching for the reason behind this minor yet, for humans, essential departure from perfection. Three Nobel Prizes have already been awarded for partial successes, the last one in 2008. At the MAX PLANC...
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متن کاملMaking up one’s mind
Dans cet article, l’auteur essaie de décrire le rapport entre savoir ce que l’on veut, qui est une manière de se connaître soi-même, et être quelqu’un de responsable. En replaçant ces réflexions à la fois dans un contexte néo-kantien récent et à travers les reformulations de ce problème opérées par la philosophie analytique, l’auteur évoque dans le détail deux manières d’être responsable de ses...
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More than 5 million people in the United States are afflicted with some form of paralysis, leaving them with diminished physical capacity. Fortunately, the past few years have seen advancements in both stem-cell technologies, which promise to repair such injuries, and in the development of sophisticated prosthetic devices that offer patients a way to interact with their environment. For example...
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A recently recognized strategy for gene regulation involves transcription of a non-coding RNA (ncRNA) transcript that overlaps the gene targeted for regulation. In many cases, it seems that it is the act of transcription itself rather than the ncRNA transcript that mediates regulation. A paper in this issue of the EMBO Journal shows one mechanism by which these transcription events regulate tra...
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ژورنال
عنوان ژورنال: Nature
سال: 1976
ISSN: 0028-0836,1476-4687
DOI: 10.1038/261268a0