نتایج جستجو برای: heat stress and normal conditions

تعداد نتایج: 17045304  

Journal: :bulletin of the iranian mathematical society 2012
hossein doostie amin saeidi

abstract. in this paper, we classify all of the finite p-groups with at most three non linear irreducible character kernels.

Journal: :Circulation 2003
José González-Alonso José A L Calbet

BACKGROUND A classic, unresolved physiological question is whether central cardiorespiratory and/or local skeletal muscle circulatory factors limit maximal aerobic capacity (VO2max) in humans. Severe heat stress drastically reduces VO2max, but the mechanisms have never been studied. METHODS AND RESULTS To determine the main contributing factor that limits VO2max with and without heat stress, ...

Journal: :The American journal of physiology 1999
D M Hall K R Baumgardner T D Oberley C V Gisolfi

Exposure of conscious animals to environmental heat stress increases portal venous radical content. The nature of the observed heat stress-inducible radical molecules suggests that hyperthermia produces cellular hypoxic stress in liver and intestine. To investigate this hypothesis, conscious rats bearing in-dwelling portal venous and femoral artery catheters were exposed to normothermic or hype...

Journal: :international journal of occupational hygiene 0
mohamadreza monazzam department of occupational health engineering, school of public health, tehran university of medical sciences. farideh golbabaei department of occupational health engineering, school of public health, tehran university of edicalsciences,tehran, iran. rasoul hematjo department of occupational health engineering, faculty of health, bushehr university of medical sciences, bushehr , iran. mostafa hosseini department of epidemiology and biostatistics, school of public health, tehran university of medical sciences. parvin nassiri department of occupational health engineering, school of public health, tehran university of medical sciences. somayeh fahang-dehghan department of occupational health engineering, school of public health, tehran university of medical sciences, tehran, iran.

heat stress is a common occupational health hazard at outdoor workplaces especially in a hot-humid climate. overheating of the body can cause a number of problems, including heat rash, heat cramps, dizziness, heat exhaustion, and heat stroke. the present study aimed to assess heat stress indices including di, wbgt, and sw req /phs, as a mean to estimate the heat load on the employees of a petro...

Abdolmehdi Bakhshandeh Ali Hamdi Shengri Aziz Karmollachaab Faraj Saadi Al kasir Ghodratolah Fathi Mohammad Hossain Gharineh

In order to study the effects of terminal heat stress and nitrogen on morphophysiological characteristics, ANUE (Agronomical Nitrogen Use Efficiency) and yield of canola, an experiment was conducted at research farm of Ramin Agricultural Sciences and Natural Resources university. The experiment was arranged in split plots based on randomized complete block design with four replications. Main pl...

Journal: :crop breeding journal 2011
m. mohammadi r. karimizadeh

terminal heat and drought are the main constraints for wheat production in the vast and diverse semi-tropical rainfed regions of iran. high temperature stress during wheat’s reproductive stage is particularly detrimental, reducing both individual kernel weight and kernel number. identification of adapted genotypes can improve grain yield and its stability under heat stress conditions. selection...

Journal: :علوم گیاهان زراعی ایران 0
فریبا مرسلی آقاجری دانش آموختة کارشناسی ارشد اصلاح نباتات، گروه اصلاح و بیوتکنولوژی گیاهی، دانشکدة کشاورزی دانشگاه ارومیه رضا درویش زاده استاد، اصلاح نباتات، گروه اصلاح و بیوتکنولوژی گیاهی، دانشکدة کشاورزی دانشگاه ارومیه و استاد پژوهشکدة زیست فناوری دانشگاه ارومیه حمید حاتمی ملکی استادیار گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه مراغه محسن برین استادیار، گروه علوم خاک، دانشکدة کشاورزی، دانشگاه ارومیه ناصر عباسپور دانشیار، گروه زیست شناسی، دانشکدة علوم، دانشگاه ارومیه

salinity stress is one of the most important abiotic stresses which threaten plants. in order to study the effect of salinity stress on yield and yield components of sunflower and also genetic analysis of these traits in relation with salt tolerance, a factorial experiment based on a completely randomized design with three replications was conducted. pots were arranged outside the greenhouse in...

The present study was conducted to investigate the genetic diversity and evaluate the drought tolerance indices on 16 genotypes of faba been based on split plot design with three replications in Agricultural Research Center of Borujerd. Irrigation regimes as the including normal and drought stress levels and genotypes were considered as the main and sub plot,respectively. Analysis of variance f...

Journal: :Insect biochemistry and molecular biology 2000
N E Gruntenko T G Wilson M Monastirioti I Y Rauschenbach

Juvenile hormone (JH) degradation was studied under normal and stress conditions in young and matured females of Drosophila melanogaster strains having mutations in different genes involved in responses to stress It was shown that (1) the impairment in heat shock response elicits an alteration in stress-reactivity of the JH system; (2) the impairment JH reception causes a decrease of JH-hydroly...

Journal: :تولید گیاهان زراعی 0

in order to study drought tolerance indices and to introduce tolerant maize hybrids in drought conditions, an experiment was conducted at the experimental field of seed and plant improvement institute, in 2009. the experiment was carried out using split-plot in a randomized complete block design (crbd) with three replications. the main plots consisted of three levels of irrigation regimes (irri...

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