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Reduction of 5,10-methylenetetrahydrofolate (methyleneTHF), a donor for methylating dUMP to dTMP in DNA synthesis, to 5-methyltetrahydrofolate (methylTHF), the primary methyl donor for methionine synthesis, is catalyzed by 5,10-methylenetetrahydrofolate reductase (MTHFR). A common 677 C --> T polymorphism in the MTHFR gene results in thermolability and reduced MTHFR activity that decreases the ...
BACKGROUND/AIM Studies have indicated a relationship between either gene polymorphism or in vivo B vitamins' nutritional status with cognition in the elderly. However, the combined effects of MTHFR and SLC19A1gene polymorphism with serum folate and vitamin B12 levels on cognition in Chinese adult population remain unclear. METHODS Demographic information of 426 Chinese adults aged from 55 to ...
ساخت قدرت در افغانستان ممیزه کاملا سنتی دارد. بررسی عوامل اجتماعی این ساخت قدرت، هدف این مقاله را تشکیل می دهد. به لحاظ شکل بندی گروه های اجتماعی اشراف، روحانیون و در دهه های اخیر نیروهای جهادی ساختمان بندی اصلی گروه های اجتماعی در افغانستان را تشکیل می دهند. در مقاطعی از تاریخ این کشور مانند دوران شاه آمان الله (1298-1307ه.ش) و محمد ظاهر شاه (1342-1352ه.ش) اقداماتی در جهت توسعه سیاسی انجام گرف...
In this work we study the effect of some electrical prosperities on synthetic rubber reinforced with carbon black diluted in heptanes with concentrations from 0.2% gm/mole to 2.0% gm/ mole in temperatures range (100, 150, 200, 250, 300) C associated with amount weight of black carbon 5wt% added to the diluted rubber. The results of electrical properties measurement of Buna rubber reinforced wit...
This paper investigates the determinants of refugee students’ social integration in Lebanon, Turkey, and Australia. seeks to understand how legal status corresponding length asylum shape children’s integration. The three host countries offer refugees different statuses ranging from short-term medium-term long-term Therefore, our data collection covers a sample 1298 middle school students all co...
Mobile right heart thrombus (MRHT) is uncommon pathology but the true prevalence is still unknown. Previous studies reported that MRHT occurs in 7% to 18% of patients with pulmonary embolism with high mortality rate (44.7%) (1). The main manifestations of venous thromboembolism (VTE) are deep venous thrombosis (DVT) and pulmonary embolism. In addition, genetic factors play an important role in ...
Experiments to study the mixing between two gases induced by the RichtmyerMeshkov instability are performed in a vertical shock tube of large, square internal cross section. The test gas is contained in an axisymmetric soap bubble which is at rest on an injector and is seeded with smoke to perform planar Mie scattering. Concurrently to the laboratory experiments, a computational investigation i...
مقدمه: ژنهای ترومبوفیلی غالباً بهعنوان مهمترین عوامل خطر در ایجاد بیماریهای قلبی - عروقی، ترومبوآمبولی و از همه مهمتر برای سقط های حاملگی گزارش میشوند. مطالعه حاضر با هدف بررسی میزان شیوع این پلیمورفیسمها در زنان مراجعه کننده به یکی از آزمایشگاههای پاتوبیولوژی مولکولی تهران انجام شد. روشکار: این مطالعه مقطعی- توصیفی بر روی 591 نمونه خون بایگانی شده زنانی که با اختلالات سقط جنین و ن...
The interpersonal difficulties of university students may affect their academic performance. Regarding who manifest perfectionist automatic thoughts, they tend to show in heterosexual relationships. This research aimed examine the relationship and predictive capacity constructs related perfectionism on relationships with people opposite sex. 1298 Ecuadorian were recruited. 51.8% sample men (n =...
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