نتایج جستجو برای: acute heat stress
تعداد نتایج: 1091345 فیلتر نتایج به سال:
Heat stress is one of the harmful factors in workplaces. Asphalt workers are exposed to thermal stress due to the open environment and process. The aim of this study was to assess the heat stress and strain in asphalt workers. This study was conducted on 29 employees of asphalt workstation. The heat stress was measured based on Wet-Bulb Globe Temperature (WBGT). Also, physiological parameters s...
In order to determine the best index for evaluating maize genotypes, 28 maize hybrids were evaluated in two planting dates, 6 July to coincide heat stress with pollination time and 27 July as normal planting to avoid high temperature during pollination and grain filling period, using a randomized complete block design with three replications, in Shushtar city, in 2008. Results showed that in st...
the aim of this study was to determine heat stress effect on physical capacity of semi-professional footballers in iran by means of oxygen consumption measurement, heart rate monitoring and wbgt assessment environmental conditions.this study compared two different thermal environmental conditions related to sub-maximal exercise and its effect on human physical capacity. thirty two male football...
original article introduction: exposure to heat is one of the workplace risk factors, which may lead to thermal strain, such as rising heart rate and body temperature. to have the best association between a heat stress indices and physiological parameters have always been a major concern for those studying the subject. this study aims to compare the association of two heat stress indices with...
introduction: current study examined the possible role of the central nucleus of amygdala (cea) transient inactivation on the metabolic and hormonal disturbances induced by acute electro foot shock stress in female rats. considering the differences between female and male in responses to stress, this study attempts to reveal possible mechanisms underlying these differences. methods: uni- or bil...
Background:and aims Working in hot environments is one of the common physical risks factor in the workplace, which can also cause heat-related illnesses and various health effects on workers, and also increasing the risk of injuries and occupational accidents. The purpose of this paper is review conducted studies about heat stress in different countries, investigation the indices of heat stress...
To investigate the role of mitochondrial antioxidant capacity during increased susceptibility to heat accompanied by the aging, young and aged Wistar rats were exposed on heat for 60 min. After heat exposure, hepatic and brain mitochondria were isolated. Our results revealed changes in antioxidant enzyme activities in liver and brain mitochondria from young and to a greater extent in aged rats....
It is generally accepted that maternal heat stress during early pregnancy reduces fertility in mammalian species. Preimplantation embryos are sensitive to heat stress, and acute elevation of temperature causes a decrease of embryonic viability and subsequent development rate to the blastocyst stage in mouse (Arechiga et al., 1998). In dairy cows, high ambient temperatures around the time of ins...
background: overwhelming life experiences can trigger stress disorders including acute stress disorder (asd) and post-traumatic stress disorder (ptsd). the objective of this study was to investigate the frequency of and predictive factors for asd and ptsd in snakebite victims. methods: in this study, snakebite victims who were admitted to mashhad medical toxicology centre, imam reza hospital, i...
Background & Aims of the Study: Heat Stress is a major factor in many industrials and heat stress is one of occupational hazards in the workplace and severely affects the health and productivity, heat stress can decrease efficiency, increase accidents and reduce safety levels. Aim of this study was comparing the heat stress indices of HSI and WBGT and core body temperature in steels ind...
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