نتایج جستجو برای: stress response
تعداد نتایج: 1338636 فیلتر نتایج به سال:
این پروژه پاسخی دینامیکی ورق های نازک مستطیلی که حداقل دو طرف آن دارای تکیه گاه ساده بوده و تحت بارگذاری مکانیکی مستقر روی فونداسیون الاستیک از نوع پسترنک باشد را بررسی می کند بارهای مکانیکی شامل بارهای ضربه ای عمود بر سطح ورق و بارهای درون صفحه ای وارد بر لبه های ورق به صورت تنش تک محوری و دو محوری می باشد. آنالیز براساس روش حل دقیق می باشد در ابتدا ارتعاشات آزاد ورق بصورت تحلیلی بررسی شده و ف...
The most desirable approach to improve characteristics such as yield with polygenic inheritance and genotype × environment interaction, is simultaneous selection using selection index based on related traits. This study was conducted Research Farm of Isfahan University of Technology, to compare selection indices for barley yield improvement under nitrogen stress and non stress conditions, usi...
The most desirable approach to improve characteristics such as yield with polygenic inheritance and genotype × environment interaction, is simultaneous selection using selection index based on related traits. This study was conducted Research Farm of Isfahan University of Technology, to compare selection indices for barley yield improvement under nitrogen stress and non stress conditions, usi...
An appropriate response and adaptation to hyperosmolarity, i.e., an external osmolarity that is higher than the physiological range, can be a matter of life or death for all cells. It is especially important for free-living organisms such as the yeast Saccharomyces cerevisiae. When exposed to hyperosmotic stress, the yeast initiates a complex adaptive program that includes temporary arrest of c...
asthma is one of the fastest growing syndromes in many countries and is adding a huge cost to the health care system. increasing reports have linked airway infectious diseases to asthma. influenza is one of the most serious airway infectious diseases and in recent years there have been some serious influenza virus pandemics which caused increased fatality in numerous different populations. dive...
the main purpose of this paper has been to discuss the effects of psychological stress and other environmental factors on incidence of diseases. we were specifically concerned with stress that increased susceptibility of uninfected hosts when exposed to infection. if such stresses also reduced resources, fecundity and/or survivorship, there was a reduction in the host carrying capacity. in addi...
Aerobic organisms are constantly exposed to reactive oxygen species (ROS), generated as normal metabolism byproducts, especially by respiration [1,2]. To modulate ROS concentrations and to counteract their deleterious effects, there are several antioxidant systems with an apparent functional redundancy, which may provide an evolutionary advantage. Saccharomyces cerevisiae cells possess multiple...
despite the different criticisms on contrastive analysis it has been proved that the results of it(when processed) can be useful in a tefl environment, specially at the level of phonology.this study is an attempt to compare and contrast the sound systems of kurdish and english for pedagogical aims.the consonants,vowels,stress and intonation of the two languages are described by the same model...
Chickpea (Cicer arietinum L.) is one of the most important legumes for human food and plays major roles in soil productivity. This crop is subjected to terminal drought in arid and semi-arid regions such as Iran. Identification of drought-induced genes is necessary not only for understanding molecular mechanisms of drought tolerance, but also is important to develop tolerant crops. In present s...
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