نتایج جستجو برای: stable cell

تعداد نتایج: 1905356  

2013
Bruce C. Thomson Nick J. Ostle Niall P. McNamara Simon Oakley Andrew S. Whiteley Mark J. Bailey Robert I. Griffiths

Soil carbon (C) storage is dependent upon the complex dynamics of fresh and native organic matter cycling, which are regulated by plant and soil-microbial activities. A fundamental challenge exists to link microbial biodiversity with plant-soil C cycling processes to elucidate the underlying mechanisms regulating soil carbon. To address this, we contrasted vegetated grassland soils with bare so...

2006
MARIA J. REVECO JUAN ZOLEZZI

Given the restructure of the electric sector in the whole world , they have developed many methods to allocate cost of the transmission system that, independently we established the different characteristics for one country to another they try to pay to the sector, giving signs of technical and economic efficiency. This publication is to emphasize with in the discussion and describe a method to...

2002
MARKO LINDROOS VEIJO KAITALA Marko Lindroos

The purpose of this paper is to study the coalition game between the potential fishing nations of Norwegian spring-spawning herring. We study a three-player cooperative game using Shapley value and nucleolus as solution concepts. We show that full cooperation between all fishing nations is not stable when the fishing fleets have a high-catchability coefficient. Further, the potential new member...

2009
ALEXANDER G. RAMM ALEXANDRA SMIRNOVA

Two principally different statements of the problem of stable numerical differentiation are considered. It is analyzed when it is possible in principle to get a stable approximation to the derivative f ′ given noisy data fδ. Computational aspects of the problem are discussed and illustrated by examples. These examples show the practical value of the new understanding of the problem of stable di...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1372

مطالعات اخیر نشان داده است که آهن از طریق کاتالیز واکنش تولید رادیکال آزاد هیدروکسیل (oh) می تواند باعث آسیب یاخته های اندوتلیال عروق کرونر و اکسیداسیون ldl شود و همچنین در آسیب میوکارد در مراحل ایسکمی و جریان دوباره خون به بافت قلبی نقش مهمی ایفا نماید. این مطالعه بطور تصادفی بر روی 130 بیمار مبتلا به انفارکتوس میوکارد (mi) شامل 94 مرد و 36 زن در بخش ccu بیمارستان قلب شهید رجائی تهران در دو مر...

HR Soleimanpour Lichaei S Esmaeilzadeh Bahabadi S Soleimanpour Lichaei,

Background The piwi family genes are highly conserved during evolution and play a crucial role in stem cell self-renewal, gametogenesis, and RNA interference in diverse organisms ranging from Arabidopsis to humans. Piwil2, also known as Hili, is one of the four human homologues of piwi. Piwil2 was found in germ cells of adult testis, suggesting that this gene functions in spermatogonial stem ce...

Journal: :International Journal of Computer Applications 2013

شعاری‌نژاد, سعیده, ناصری, دولت,

 The stable colloidal dispersions of magnetic nano-particles in nematic liquid crystals are called ferronematics. Their behaviour in magnetic fields depends on various parameters such as anchoring energy, magnetic anisotropy, and shape and volume fraction of the particles. In the present paper, the threshold field is obtained for these colloidal nematics. Then, the influence of magnetic anisotr...

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