منابع مشابه
Bleach at the roots of mitotic progression
Bleach at the roots of mitotic progression Lim et al. show how hydrogen peroxide at the centrosome spurs cells to advance through mitosis. Cdk1 and regulatory proteins such as cyclin B1, Plk1, and Aurora A cooperate to initiate mitosis. To exit mitosis, cells destroy the regulatory proteins, an effect triggered by the APC/C when it is bound to its coactivator Cdh1. Cdk1 adds phosphates to Cdh1 ...
متن کاملconditional copula-garch methods for value at risk of portfolio: the case of tehran stock exchange market
ارزش در معرض ریسک یکی از مهمترین معیارهای اندازه گیری ریسک در بنگاه های اقتصادی می باشد. برآورد دقیق ارزش در معرض ریسک موضوع بسیارمهمی می باشد و انحراف از آن می تواند موجب ورشکستگی و یا عدم تخصیص بهینه منابع یک بنگاه گردد. هدف اصلی این مطالعه بررسی کارایی روش copula-garch شرطی در برآورد ارزش در معرض ریسک پرتفویی متشکل از دو سهام می باشد و ارزش در معرض ریسک بدست آمده با روشهای سنتی برآورد ارزش د...
NudC Deacetylation Regulates Mitotic Progression
Mitosis is largely driven by posttranslational modifications of proteins. Recent studies suggest that protein acetylation is prevalent in mitosis, but how protein acetylation/deacetylation regulates mitotic progression remains unclear. Nuclear distribution protein C (NudC), a conserved protein that regulates cell division, was previously shown to be acetylated. We found that NudC acetylation wa...
متن کاملStudies on the Control of Mitotic Activity in Excised Roots
The mitotic characteristics of excised roots of the garden pea, Pisum sativum, have been studied under conditions of controlled nutrition. The excised root system was tested with regard to its ability to respond, mitotically, to various carbon sources. Sucrose, glucose, fructose, and DL-glyceraldehyde were found to support mitotic activity in excised roots, galactose and 2-deoxy-D-glucose were ...
متن کاملthe role of application of dynamic assessment approach in improvement of iranian efl writing performance at different language proficiency levels
the present study sought to investigate the role of dynamic assessment (da) in improvement of iranian efl writing performance at different language proficiency levels. to this end, after conducting the quick placement test, 60 iranian efl learners were assigned to two groups with different language proficiency levels. in both groups each participant wrote two compositions, one before and one af...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2015
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.2101iti1