نتایج جستجو برای: b فتالازین 5
تعداد نتایج: 1967601 فیلتر نتایج به سال:
The organizer is a unique region in the gastrulating embryo that induces and patterns the body axis. It arises before gastrulation under the influence of the Nieuwkoop center. We show that during gastrulation, cell movements bring cells into and out of the chick organizer, Hensen's node. During these movements, cells acquire and lose organizer properties according to their position. A "node ind...
Case-Based Reasoning (CBR) is a very popular methodology for developing knowledge-based systems [1]. Yet there are few toolkits available for building CBR systems. In this paper we present a framework called Fionn that is specifically designed for the development of CBR systems. Since Fionn was designed specifically for CBR it provides good support for some of the unique characteristics of CBR ...
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5-Hydroxymethylcytosine (5-hmC) was recently identified as a relatively frequent base in eukaryotic genomes. Its physiological function is still unclear, but it is supposed to serve as an intermediate in DNA de novo demethylation. Using X-ray diffraction, we solved five structures of four variants of the d(CGCGAATTCGCG) dodecamer, containing either 5-hmC or 5-methylcytosine (5-mC) at position 3...
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