شرایط افروزش و اشتعال سوخت‌های گداخت هسته‌ای در حضور ناخالص­‌ها، یکی از موارد مهمی است که طراحی قرص‌های سوخت باید مورد توجه قرار گیرد. این مقاله اثر ناخالصی هسته سنگین طلا بر کلیه فرایندهای احتراق پلاسمای غیرتعادلی دوتریم- تریتیم مدل چهار دمایی آن شکل تابع توزیع انرژی رفتار فوتون‌ها تأثیر می‌گذارد بررسی گرفته است. مطالعه شامل اثرات منفی سوخت، طول زمان تشکیل لکه داغ نتایج محاسبات عددی به­ دست آم...

هدف: هدف از پژوهش حاضر، شناسایی مؤلفه‌های آزردگی‌های روانی انتقال‌یافته والدین به فرزندان، مبتنی بر مرور زندگی بود. روش: حاضر لحاظ روش‌شناسی نوع کیفی و روش نظریه داده بنیاد ‏و طریق نمونه‌گیری هدفمند نظری صورت گرفته است. جامعة موردپژوهش بین (پدر یا مادر) 35 تا 50 سال دارای فرزند نوجوان (دختر پسر در بازة سنی 13 18 سال) شهر تهران انتخاب شدند که به‌صورت داوطلبانه مصاحبه حضور پیدا کردند. با استفاده ...

The objective of this study was to evaluate total phenolic content and antioxidant activity of leaf and different parts of fruit (hull, shell, and kernel) of Bene in Ilam province. Total phenolic content was determined with the FolinCiocalteu Reagent (FCR); antioxidant activity of methanolic extracts were examined by DPPH (2,2diphenyl1picrylhydrazyl), FRAP (ferric reducing antioxidant power) an...

OBJECTIVE The aim of this study was to investigate the antioxidant activity of the aqueous extracts of leaves of Siamese neem tree (Azadirachta indica A. Juss var. siamensis Valeton) from several extracting and drying methods using 2,2-diphenyl-1-picrylhydrazyl (DPPH)-scavenging assay. MATERIALS AND METHODS The leaves of Siamese neem tree were extracted using percolation, decoction, maceratio...

This study was done to assess the total phenolic compounds (TPC) and 1, 1-diphenyl-2picrylhydrazyl (DPPH) scavenging activity in the flowers and leaves of Clitoria ternatea and Vitex negundo Linn. by using methanol and water extraction. TPC were evaluated using Folin-Ciocalteau method. Methanol was more efficient in extracting phenolic compounds compared with water in measuring TPC. Vitex negun...

The expression of regucalcin, a regulatory protein in the intracellular signaling system, in the hearts of rats was investigated. Regucalcin expression was examined using reverse transcription-polymerase chain reaction and Western blot analysis. Regucalcin mRNA and its protein levels in the hearts of male and female rats were significantly decreased with increasing age (50 weeks old) as compare...

The polyphenolic extracts and oils were obtained from ajwain, mustard, fenugreek and poppy seeds. The extracts were partitioned into acidic and neutral polyphenolic fractions and following estimation of total phenolics in the crude extract, acidic and neutral fractions and oil, all were analyzed for their DPPH (2,2-diphenyl-1-picrylhydrazyl) scavenging potential, ferric reducing ability and che...