نتایج جستجو برای: k and ca

تعداد نتایج: 16889550  

ژورنال: دانش آب و خاک 2016

برای تعیین شاخص­های انحراف از درصد بهینه (DOP) و روش تلفیقی تشخیص و توصیه (DRIS) ارزیابی وضعیت تغذیه­ای پیاز (Allium cepa L.) و مقایسه دو روش مذکور، نمونه­های برگ از 50 مزرعه جمع­آوری و غلظت­های عناصر غذایی N، P،K ، Ca،Mg ،Fe ،Mn ، Zn ،Cu و B تعیین شدند. با توجه به مقدار عملکرد، مزارع به دو گروه، مزارع با عملکرد بالا و پایین تقسیم شدند. نرم­های DRIS برای نسبت­های مختلف عناصر غذایی تعیین شدند.  ...

عباس صفرنژاد, , مهدی آخوندی, , مهرداد لاهوتی, ,

Drought stress is one of the most important environmental stresses in reduce of growth and plants production. Determination of resistance mechanisms to environmental stress in plant improvement is very important. In order to , experiment with osmotic potentials of PEG (zero (control), -4, -8 & -12 bar) and alfalfa genotypes was done. The selected alfalfa genotypes namely, Yazdi(tolerant), Niksh...

Journal: :The Journal of biological chemistry 2001
C M Fanger H Rauer A L Neben M J Miller H Wulff J C Rosa C R Ganellin K G Chandy M D Cahalan

To maintain Ca(2+) entry during T lymphocyte activation, a balancing efflux of cations is necessary. Using three approaches, we demonstrate that this cation efflux is mediated by Ca(2+)-activated K(+) (K(Ca)) channels, hSKCa2 in the human leukemic T cell line Jurkat and hIKCa1 in mitogen-activated human T cells. First, several recently developed, selective and potent pharmacological inhibitors ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

in this thesis, a better reaction conditions for the synthesis of spirobarbiturates catalyzed by task-specific ionic liquid (2-hydroxy-n-(2-hydroxyethyl)-n,n-dimethylethanaminium formate), calcium hypochlorite ca(ocl)2 or n-bromosuccinimide (nbs) in the presence of water at room temperature by ultrasonic technique is provided. the design and synthesis of spirocycles is a challenging task becaus...

Journal: :Biological & pharmaceutical bulletin 2012
Satomi Niwa Susumu Ohya Yoshiyuki Kojima Shoichi Sasaki Hisao Yamamura Motomu Sakuragi Kenjiro Kohri Yuji Imaizumi

Large-conductance Ca(2+)-activated K(+) (BK(Ca)) channel encoded by K(Ca)1.1 plays an important role in the control of smooth muscle tone by modulating membrane potential and intracellular Ca(2+) mobilization. BK(Ca) channel is functionally expressed in prostatic smooth muscle cells, and is activated by α(1)-adrenoceptor agonists. The main objective of this study was to elucidate the pathophysi...

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