background: acetaminophen (apap) overdose causes renal and hepatic injury. it is ‎also believed that oxidative stress has a pivotal role in apap-induced renal injury. ‎therefore, protective effects of different antioxidants have been examined in apap-‎induced renal and hepatic toxicity models. stevia rebadiana is a plant with a high ‎degree of natural antioxidant activity in its leaf extract. t...

background: there is long-term interest in the effects of stress on health, due to the strain that it places on individuals which can lead to an increased risk of disease. the present study examined degree of perceived job stress related to incidents reporting rate and its dimensions among workers' isfahan steel company. methods: a self-administered anonymous was distributed to 189 workers. the...

an analytical nonlinear stress-strain model and a microscopic damage index for confined and unconfined concretes together with a macroscopic damage index for reinforced concrete (rc) structures under cyclic loading are proposed. in order to eliminate the problem of scale effect, an adjustable finite element computer program was generated to simulate rc structures subjected to cyclic loading. by...

in order to study the effect of different concentrations of salicylic acid in two commercial apricotcultivars of shahrood namely ‘shahrood 41’ and ‘jaffari’, under cold stress, a factorial experiment wasconducted in a randomized complete block design with three replications in 2012 at the agriculturalresearch center of shahrood city. the test had four factors including: sa with three levels (0....

nowadays, occupational accidents are one of the most important problems in developing countries. job stress and unsafe acts have been also recognized as effective factors in increasing the risk of occupational accidents. the main goal of this research was to evaluate the relationship between job stress and unsafe acts with occupational accidents. this study was performed on 195 employees in par...