نتایج جستجو برای: چشمه سزیم 137

تعداد نتایج: 16999  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1391

در این پایان نامه خواص ترمودینامیکی، دمای ذوب، ساختار و پایداری حرارتی نانو خوشه های فلزات قلیایی از طریق شبیه سازی دینامیک مولکولی بررسی شده است. دمای ذوب نانو خوشه هائی از فلز سزیم شامل 55 تا 6750 اتم بررسی شده است. انرژی داخلی، ظرفیت گرمایی، آنتالپی، آنتروپی، انرژی سطحی، و ضریب خود نفوذی نانو خوشه ها به صورت تابعی از دما محاسبه شده است. برای بررسی مکانیسم ذوب از پارامتر دگرگونی استفاده می ش...

Journal: :Realidad: Revista de Ciencias Sociales y Humanidades 2017

2013
Davide Farronato Francesco Mangano Stefano Pieroni Giuseppe Lo Giudice Roberto Briguglio Francesco Briguglio

The tooth structure preservation is the best way to postpone more invasive therapies. Especially in young patients more conservative techniques should be applied. Bonded porcelain veneers and even more the direct composite restorations, are the two therapeutic procedures that require the fewer sacrifice of dental tissue, finalized to the optimal recovery of aesthetic and functional outcome. Alt...

2009
Giovanna Priante Estella Musacchio Chiara Valvason Bruno Baggio

Background: There is some evidence suggesting a close relationship between polyunsaturated fatty acids (PUFAs) and renal inflammation and fibrosis, which are crucial stages in chronic kidney disease. Methods: To verify the role of PUFAs in renal fibrosis processes, we investigated the effects of eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA) and arachidonic acid (AA) on the gene expres...

2014
Gina L. Ambrosini

A range of individual nutrients and foods have been suggested to increase obesity risk in childhood, but the evidence is inconsistent. Dietary patterns that summarise the whole diet may, however, be more informative. The aim of the present paper was to systematically review the current evidence pertaining to overall dietary patterns in childhood and later obesity risk. Studies eligible for revi...

2003
Michael Foster

Volume 29, Number 3, May/June 1997 1980, the rate increased by 61% among adolescents, by 69% among women aged 20–24, by 67% among 25–29 year-olds and by 82% among women aged 30–34.2 Indeed, the rates for these latter groups have continued to rise since 1991, even as the birthrate among adolescents has stabilized and turned slightly downward. As a result of these trends, nonmarital births now ac...

2015
ARUN DEBRAY

1. Galilean Relativity and Newtonian Determinacy: 1/7/13 1 2. The Euler-Lagrange Equation: 1/9/13 3 3. Suddenly, Riemannian Geometry: 1/14/13 5 4. Examples of Natural Systems: 1/16/13 8 5. More on the Kepler Problem: 1/23/13 10 6. Rigid Bodies I: 1/28/13 12 7. Rigid Bodies II: 1/30/13 14 8. Rigid Bodies III: 2/4/13 15 9. The Legendre Transform and Projective Duality: 2/6/13 17 10. The Least Act...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه محقق اردبیلی 1390

ساختار نانو ذرات نقش بسیار مهمی در عملکرد آنها در مواجه با واکنش های شیمیایی و رفتار فیزیکی آن ها دارد.لذا بررسی تغییر ساختار نانو ذرات، می تواند اطلاعات مفیدی از رفتار آنها ارائه بدهد. علاوه بر اینها، بنظر می رسد در آینده ذرات نانو در محیط های متفاوتی از جمله در مراکز هسته ای که در آنجا تابش های مختلفی چون نوترون و گاما وجود دارد، استفاده شود. در این تحقیق نمونه cosalmcm-41 به روش تعویض یونی ...

2015
Junko Sugatani Yuji Noguchi Yoshiki Hattori Masahiko Yamaguchi Yasuhiro Yamazaki Akira Ikari

ThehumanpregnaneX receptor (hPXR) is a xenobiotic-sensing nuclear receptor that transcriptionally regulates drug metabolism–related genes. The aim of the present study was to elucidate the mechanism by which hPXR is regulated through threonine-408. A phosphomimetic mutationat threonine-408 (T408D) reduced the transcriptional activity of hPXR and its protein stability in HepG2 and SW480 cells in...

2002
Nevin YALMAN

A four year-old-girl with Diamond-Blackfan anemia (DBA) that was resistant to corticosteroid treatment and transfusion dependent underwent (bone marrow transplantation) BMT from HLA identical sibling. The patient was conditioned with busulfan and cyclophosphamide and achieved complete marrow engraftment and mixed chimerism in DNA analysis. For the following 13 months she was not transfusion dep...

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