منابع مشابه
Tiny travel companions
Since the first modern humans left their birthplace in Eastern Africa and slowly spread to populate every inhabitable place on the planet, Homo sapiens has been a migratory animal. Over thousands of years, these travellers unknowingly carried excess baggage on their journeys: countless microbes in and on their bodies, which evolved along with their host. By applying the tools of modern genomics...
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A vital step in growth factor-driven angiogenesis is the coordinated engagement of endothelial integrins with the extracellular matrix. The molecular mechanisms that partner growth factors and integrins are being elucidated, revealing an intricate interaction of surface receptors and their signaling pathways.
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The life of an RNA molecule is complicated. Once a newly synthesized eukaryotic RNA has emerged from the RNA polymerase in the nucleus, it will be processed, spliced, and exported into cytoplasm. In prokaryotes, transcribed RNA is synthesized directly in the cytoplasm. RNA molecules that serve as mRNAs have to be kept devoid of local structures that are inhibitory for ribosome scanning and tran...
متن کاملArtificial Companions
The paper concerns the closely related topics of the possibility of machines having identifiable personalities, and the possible future legal responsibilities of machines. As will become clear, I wish to explore these topics in terms which are basically those of computational linguistics; and by ‘machines’ here, I intend software entities, rather than robots, and in particular the sort of softw...
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The human visual system is remarkably tolerant to degradations in image resolution: in a scene recognition task, human performance is similar whether 32 × 32 color images or multi-mega pixel images are used. With small images, even object recognition and segmentation is performed robustly by the visual system, despite the object being unrecognizable in isolation. Motivated by these observations...
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ژورنال
عنوان ژورنال: EMBO reports
سال: 2007
ISSN: 1469-221X,1469-3178
DOI: 10.1038/sj.embor.7400908