نتایج جستجو برای: stress effect

تعداد نتایج: 2006885  

Journal: :پژوهش های زراعی ایران 0
مانی مجدم عادل مدحج

in order to study the effects of drought stress and nitrogen (n) levels on grain yield, yield components and water use efficiency of grain corn (sc.704), a field experiment was conducted in 2009 growing season. the experiment was split-plot based on randomized complete block design arrangement and four replicates. main plots were three irrigation levels included optimum irrigation (i1), moderat...

Journal: :international journal of high risk behaviors and addiction 0
zahra habibi department of psychology, islamic azad university, branch of karaj, karaj, ir iran; department of psychology, islamic azad university, branch of karaj, karaj, ir iran. tel.: +98-9352336314 somayeh tourani department of psychology, allameh tabatabaei university, tehran, ir iran hasan sadeghi department of psychology, science and research university, young researchers club and elites, ardabil, ir iran abbass abolghasemi department of psychology, university of mohaghegh ardabili, ardabil, ir iran

background stressful life events may cause initiation of drug use among people. the main purpose of this study was to evaluate the effectiveness of stress management skill training on depression, anxiety and stress levels in drug addicts after withdrawal. objectives the population included all drug addicts after withdrawal in 2012 in alborz province. materials and methods the study was quasi-ex...

Journal: :desert 2015
hosein shekofteh hamid shahrokhi elham solimani

since there is limited information on the simultaneous effect of drought stress and salicylic acid on yield and mucilagecontent of the medicinal herb, plantago ovata forssk is available, a pot experiment was conducted in factorial form basedon a randomized complete block design with three replications in jiroft, kerman province, south of iran. as the firstfactor, drought stress included four le...

Stress is a reaction to unwanted events disturbing body homeostasis which influences its pathways and target areas. Stress affects the brain through the lateral hypothalamic area (LHA) orexinergic system that mediates the effect of corticotropin-releasing hormone (CRH) through CRH receptor type 1 (CRHr1). Therefore, this study explores the outcome of stress exposure on anxiety development and t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1391

the effect of poss instruction in comparison with conventional instruction on development of esp learners’ parts of speech knowledge and attitude toward call.

Journal: :فصلنامه علمی اکوفیزیولوژی گیاهان زراعی 0

in order to study the effect of compost and salinity stress on seedling growth and generative traits of wheat (sivand cultivar) a pot experiment was conducted based on complete randomized design arranged in factorial with six replications at the research greenhouse, faculty of agriculture, mashhad branch, islamic azad university, mashhad, iran, during in cropping season 2013-2014. factors were ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی مکانیک 1382

خستگی پدیده ای است که از طریق بالا رفتن تعداد سیکلهای بارگذاری به مرور صدمه را در قطعه افزایش میدهد و نهایتا منجر به واماندگی آن میشود. جهت افزایش عمر و یکپارچگی قطعات تا کنون روشهای مختلفی برای ارزیابی خستگی ارائه شده است. این روشها را در یک دسته بندی کلی میتوان به سه شاخه تقسیم نمود: 1- روشهای بر پایه تنش 2- روشهای بر پایه کرنش و 3- روشهای انرژی. در این پژوهش سعی شده که عمر خستگی رینگ خودرو ب...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده علوم تربیتی و روانشناسی 1387

چکیده ندارد.

Journal: :basic and clinical neuroscience 0
reza mahmoudi organization elham enant organization hamdollah delaviz cellular and molecular research center, yasuj university of medical sciences, yasuj, iran. p.o.box: 7591994799 parastou rad organization amrollah roozbehi organization mehrzad jafari barmak organization

introduction: prenatal stress has deleterious effects on the development of the brain and is associated with behavioral and psychosocial problems in childhood and adulthood. this study aimed to determine the protective effect of l-arginine on fetal brain under maternal stress. methods: twenty pregnant wistar rats (weighting 200-230 g) were randomly divided into 4 groups (n=5 for each group). th...

شاکری, احسان, طباطبایی, سید علی,

In order to study the effect of drought stress on qualitative and quantitative traits of sunflower cultivars and use of drought tolerance stress to determine the most tolerant cultivar to drought stress, this experiment was conducted on six cultivars of sunflower under two irrigation regimes (normal irrigation and drought stress) at agricultural and natural resources center of Yazd in 2010. The...

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