background economic consequence analysis is vital for recognizing pipeline comprehensive risk analysis and emergency response planning. objectives the purpose of this study was to estimate economic loss due to fire and explosion in petrochemical feed and product pipelines. materials and methods the present study which performed on 47 pipelines of a petrochemical special zone, pertinent pipeline...

background improper use of pesticides has become a serious in regard to human health in recent years. overlooking safety regulations, using pesticides creates many problems and health hazards for people. objectives this paper aimed to investigate the use of pesticides by pistachio farmers in kerman, iran. materials and methods this study was conducted in chatroud county, kerman province, iran. ...

background drowning is a serious but neglected health problem in low-and middle-income countries. objectives to describe the effectiveness of drowning prevention program on the reduction of drowning mortality rates in rural settings at the north of iran, and guide its replication elsewhere. patients and methods this interventional design included pre- and post-intervention observations in the r...

background : to assess the epidemiological characteristics of hypertensive patients in urban population of yazd, a cen­tral city in iran. methods: this cross sectional study was conducted from 2005-2006 and carried out on population aging 20-74 years. it is a part of the phase i of yazd healthy heart program that it is a community interventional study for prevention of car­diovascular disease. ...

social anxiety disorder is an anxiety disorder in which a person has an excessive and unreasonable fear of social situations. social anxiety and self-consciousness arise from a fear of being closely watched and criticized by others. clinical observation also suggests that some persons with social anxiety disorder may experience intense anger at others upon perceived negative evaluation or when ...

conclusions vitamin c supplementations after 14th weeks of gestation can prevent from pprom in women with the history of pprom. results pprom occurred in 44.7% of controls and 31.8% of cases (p < 0.05). prom occurred in 34.1% of controls and 18.8% of cases (p < 0.05). pregnancy was terminated at term gestation in 21.2% of controls and 49.4% of cases (p < 0.05). rupture of membranes was signific...

background  & aim: case-crossover  studies are the case-control  version of crossover studies. in these studies, cases and controls are the same subjects. the term crossover is applied for designs that all subjects pass through both treatment (exposure) and placebo (non-exposure) phases. in fact they are  crossover  of  subjects  between  periods  of  exposure  and  non-exposure.  this  design ...

background: recently grapefruit juice is known to enhance the bioavailability of several clinically important drugs such as nifedipine, terfenadine, cyclosporine, ethinylestradiole, midazolam, and triazolam. cyclosporine is an immunosuppressive agent that used in transplantation for preventation of chronic rejection. grapefruit increase in cmax and auc of drug mediated by suppression of cyp3a4 ...

wind energy today, has attracted widespread interest from among a variety of sources of renewable energy in the world. owing to the increasing demand for production of electrical energy for electricity networks by using wind power, it is essential that wind power plants are actively incorporated in the network’s performance using an appropriate control system. in general, these wind power plant...