منابع مشابه
Delving into the diversity of silencing pathways
Submitted 20 March 2007; accepted 22 May 2007; published online 29 June 2007 developments include the elucidation of steps in the biogenesis of repeat-associated small interfering RNAs (rasiRNAs), new ideas about how siRNAs silence gene expression, how miRNAs repress translation, and the importance of siRNAs as tools in biological research and therapeutics. The discovery of siRNAs, which silenc...
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We describe an algorithm for automatically segmenting flowers in colour photographs. This is a challenging problem because of the sheer variety of flower classes, the intra-class variability, the variation within a particular flower, and the variability of imaging conditions – lighting, pose, foreshortening etc. The method couples two models – a colour model for foreground and background, and a...
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After years of fi ts and starts, the often stalled but always prodigious machinery of the dryeye pipeline appears to be moving forward. Thanks to improvements in designing clinical trials, monitoring patients’ signs and symptoms and evaluating the performance of therapeutic agents, a number of drugs are making their way through the clinical trial process. These agents include new mucomimetics, ...
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In this day and age, the Internet has become an integral part of our lives. Question and answer (Q&A) networks like Stack Exchange have grown to become major sources of knowledge on the Internet. On the Internet, users devote time into looking for answers to questions they have. Sometimes, these users are able to find these answers and other times they do not, thus wasting their time. If these ...
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ژورنال
عنوان ژورنال: Nature
سال: 2007
ISSN: 0028-0836,1476-4687
DOI: 10.1038/450031a