according to industrial accident’s investigation 60 to 90% of all accidents have directly been caused by human error. in this study , which has been done in the isomax unit of an oil refinery , totally 25 existing occupational tasks were  reviewed by aid of the results produced from interviewing the workers , discussing with supervisors & line managers and considering all the past accident’s re...

introduction: estrogen and progesterone are supposed to modify pain sensitivity. however, the actual role of each of these steroid hormones in this respect is not well known. plasma concentrations of these hormones show variation during estrous cycle. the role of alpha2 receptors in tonic pain has been pointed out. the aim of the present study was to investigate the agonist and antagonist effec...

Extensive research on human subjects has tried to investigate whether there is a correlation between cognitive performance and the menstrual cycle. Less is known about the relationship between the menstrual cycle and task performance in other cognitive animals. We test whether the secretion of a sex hormone [luteinizing hormone(LH)] influences the performance of cognitive tasks by a female chim...

This experimental study examined the effectiveness of using focused and unfocused tasks on Iranian intermediate EFL learners’ performance in producing noun, adjective, and adverb clauses. In addition,the aim of this study was to explore the effects of form-focused instruction and the feedback students received from their teacher after doing focused grammar tasks. Data consisted of the scores of...

results the results showed that the highest compressive force exerted on the back was equal to 4002 n and the lowest force 1425 n. moreover, 76% of the tasks were reported to have the highest compressive force greater than the recommended limit; 72% of the tasks had an li 1 - 3 and 28% of them had an li less than 1. there was a weak direct correlation between compressive force and rwl. backgrou...

For the foreign student it is very important to own skills of the academic letter. It is an important indicator of professional and research competence of the student. The mobility of foreign graduates of the Russian higher education institutions depends on their level of proficiency in the academic Russian letter as communications between the educational and scientific organizations extend at ...

when the degree of saturation at intersection approaches one, webster’s optimum cycle length equation becomes inapplicable, because the cycle length will becomes very big when the degree of saturation approaches one and will be fully unrealistic when the degree of saturation becomes greater than one. this is not a problem for hcm2000 method. but optimum cycle length calculation in this method h...

This study examined the effect of two different authentic topic-familiar rhetorical L2 listening tasks (expository and argumentative) differing in reasoning demand on the listening comprehension scores of a number of Iranian EFL advanced learners. Sixty homogeneous advanced learners were recruited based on their performance on an English Language Proficiency test (Fowler & Coe, 1976). Then they...

This paper proposes a framework to represent life-cycle activities performed in business process management (BPM). It is based on the functionbehaviour-structure (FBS) ontology that represents all design entities uniformly, independently of the specific stages in their life cycle. The framework specifies a set of distinct activities that operate on the function, behaviour and structure of a bus...