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تعداد نتایج: 13468268 فیلتر نتایج به سال:
In this paper, we work on extending a Chinese thesaurus with words distinctly used in various Chinese communities. The acquisition and classification of such region-specific lexical items is an important step toward the larger goal of constructing a Pan-Chinese lexical resource. In particular, we extend a previous study in three respects: (1) to improve automatic classification by removing dupl...
The structures of micelles of the surfactant polysorbate 80 (Tween 80) in 0-50% aqueous N,N-dimethylformamide (DMF) solutions (pH 7.2, ionic strength 2.44 mM) were investigated by means of small-angle X-ray scattering. At all the tested DMF concentrations, core-shell cylinder micelles formed; that is, increasing the concentration of DMF did not result in changes in the shape of the micelles. Th...
مقدمه : زگیل یکی از شایع ترین بیماری های پوستی است که توسط ویروس پاپیلومای انسانی ( hpv) ایجاد می گردد . بیشتر ضایعات سیر خود محدود شونده داشته و ظرف دو سال از بین می روند ولی گاهی نیز به مدت طولانی تری در سطح پوست باقی مانده و به سایر افراد یا سایر نقاط پوست منتقل می شوند . روش های درمان این بیماری متنوع بوده و شامل استفاده از کراتولیتیک ها مانند اسید لاکتیک و اسید سالسیلیک ، روش های فیزیکی ما...
A total of 111 Candida isolates representing 11 species were examined for their respective responses to a Tween 80 opacity test. The strains of Candida albicans and C. tropicalis that were examined produced an opacity response around their colonies at 2 to 3 days postinoculation. A second group of Candida species yielded a halo around their colonies at 8 to 10 days postinoculation. The remainin...
Non-myofibrillar enzyme activities persist after glycennation of insect flight muscle. Preservation of mitochondrial structure and function in glycerol-extracted preparations complicates the study of direct effects on the myofibrillar contractile machinery. Non-myofibrillar adenosine triphosphatase and a significant amount of respiration and oxidatdve phosphorylation in the presence of added su...
BACKGROUND Neural Tube Defects (NTDs) are among the most prevalent and most severe congenital malformations worldwide. Polymorphisms in key genes involving the folate pathway have been reported to be associated with the risk of NTDs. However, the results from these published studies are conflicting. We surveyed the literature (1996-2011) and performed a comprehensive meta-analysis to provide em...
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