the total change in living quality happening in developed countries represents a suitable policy and programming conducted by the government. providing enough power and authority for those who are called as society organizers, there remains no doubt to expect a fruitful national economy and consequently a much better living conditions. according to the rate of changes and family economic evolut...

Background: Health care centers play an important role in providing health service to the public and maintaining the health of the community. This study was an attempt to evaluate the quality of work life and its association with job burnout and job performance among healthcare employees. Material and Methods: This cross-sectional study was carried out on 136 employees of healthcare centers an...

-the cowpea aphid, aphis craccivora koch, is an important pest of robinia pseudoacacia frisia. life table parameters of a. craccivora were determined under natural (16- 33ºc and 32-89% rh, respectively) and laboratory (25 ± 1ºc, rh of 70 ± 5% and a photoperiod of 16:8 h (l: d) conditions. the data were analyzed using the age-stage, two-sex life table theory. each experiment was replicated 45 ti...

power transformers provide a vital link between the generation and distribution of produced energy. such static equipment is subjected to abuse during operation in generation and distribution stations and leads to catastrophic failures. this paper reviewed the techniques in the field of condition monitoring of power transformers in recent years. transformer monitoring and diagnosis are the effe...