conclusions the study findings highlight the importance of the mental aspect of fatigue in this working group. these results have possible implications for workers’ health and well-being and for the design of shift work systems, for industrial workers. background shift work is a well-recognized occupational health hazard in both industrialized and industrially developing countries. prolonged wo...

fatigue behavior of a vanadium microalloy steel has been studied in this research. here, microstructure constituents were considered which essentially are dependent on the heat treatment conditions. the results of high cycle fatigue tests revealed that heat treatment procedure and cooling rates have significant effects on fatigue properties. optimal heat treatment cycle of the microalloyed stee...

original article   shift work is a common work schedule that has several inappropriate consequences, the most important of which is fatigue. the aim of this study was to invest gate the impact of the shift length on the occupatio al fatigue of operators in filling stations. this cross-sectional study was carried out on operators of the filling station in national iranian oil products distributi...

study area is located in district of bajestan and ferdows cities, ne of iran. structurally, this area is part of lut block. the oldest exposed rocks, to the north of intrusive rocks and in eastern bajestan, are meta-chert, slate, quartzite, thin-bedded crystalline limestone and meta-argillite. the sedimentary units are: sardar formation (carboniferous), jamal formation (permian), sorkh shale an...

the purpose of the study is to show in which trimester of pregnancy is fatigue more common among working women, and whether or not there is any relationship between fatigue rate and educational level, income, etc. this is a longitudinal study. from the total number of patients who came to zeinab university hospital, 100 completed a demographics 50 item questionnaire and the numerical rating sca...

granitoid rocks of kaje area, northwest ferdows, with the composition of diorite, monzodiorite, monzonite, monzogranite, syenogranite and granite, with calk-alkaline and high potassium affinities, have trace and rare earth element geochemical characteristics similar to those from subduction zones, belonging to i-type granitoid rocks. most of these rocks are oxidized (magnetite series), while on...

background: cancer can lead to fatigue and the manifestation of psychological symptoms in patients, including depression, anxiety, and stress. objectives: the aim of this study was to investigate the relationship between fatigue and psychological symptoms in patients with gastrointestinal cancer. materials and methods: the study had a descriptive, cross-sectional design. we assessed levels of f...

the relationship between fatigue and mental health in chemical warfare victims with bronchiolitis obliterans     abbasi s [1] , mehdizadeh s [2] *, moqaddam m [3]     received: 8 mar, 2013 accepted: 10 may, 2013    abstract  background & aims : fatigue is one of the most debilitating symptoms in patients with respiratory disorders. in addition, among the chronic disease, lung disease have the h...

background: surface electromyography (semg) of muscles is a non-invasive tool that can be helpful in the assessment of muscle function and some motor control evaluations. a loss of force, known as muscle fatigue is accompanied by changes in muscle electrical activity. one of the most commonly used surface emg parameters which reflects paraspinal muscle fatigue during different tasks and positio...