abstract background: since suicide attempt among adolescents is a major challenge and the reasons why this age group attempt suicide are complex, the aim of this study was to investigate the risk factors that contribute to suicide attempt among adolescents. materials and methods: in this qualitative content analysis, 14 adolescents (12–19 years old) who were admitted in two hospitals in shiraz,...

conclusions the findings of the meta-epidemiological study support that ebv infection may increase the risk of breast cancer. nested case-control studies are required in the future. results a total of 20 case-control studies were selected, and the total numbers of subjects in the case and control groups were 1947 and 1010, respectively. the findings of this meta-analysis revealed that ebv infec...

results the results show that the individual and demographic factor (idf), organizational factor (of), h & s training factor (tf), workplace-human factor (whf), factor related to type of accident occurrence (taf), h & s risk management system factor (rmsf), and accident time factor (atf) were considered to be effective and significant independent latent factors in occupational injuries. conclus...

background: the reliability and safety of gas refineries are strongly associated with the reliability of other parts of the system. defect and failure in one part of a system can cause total system breakdown or accident. the failure and damage in these equipment such as transformers and boilers results in not only the equipment damage and human injuries but also productivity reduction. the purp...

the present study aimed to investigate the characteristics of occupational accidents and frequency and severity of work related accidents in the construction industry among iranian insured workers during the years 20072011.the iranian social security organization (isso) accident database containing 21,864 cases between the years 2007-2011 was applied in this study. in the next step, total accid...

safety distance has already been a main measurement for the hazard control of chemical installations interpreted to mean providing space between the hazardous installation and different types of targets. but, the problem is how to determine the enough space. this study considers the application of quantitative risk assessment to evaluating a compressed natural gas station site and to identify n...

fuzzy logic is one of the concepts that has created different scientific attitudes by entering into various professional fields nowadays and in some cases has made remarkable effects on the results of the practical researches. however, the existence of stochastic and uncertain situations in risk and accident field, affects the possibility of the forecasting and preventing the occurrence of the ...

this paper provides a fuzzy based decision support system (dss) for risk analysis in e-tourism ( electronic tourism ) investment. in general term, e-tourism is the use of information and communication technology (ict) in tourism which may allow operating tourism in least variable cost, least time and increased work efficiency. it is worth noting that there are many factors that affect the deve...

background accident investigation programs are a necessary part in identification of risks and management of the business process. objectives one of the most important features of such programs is the analysis technique for identifying the root causes of accidents in order to prevent their recurrences. analytical hierarchy process (ahp) was used to compare management oversight and risk tree (mo...

the need to establish power plants to supply the required electricity of the country has been rising due to increasing demand levels as well as the lack of governmental resources. furthermore, the available traditional attitude in performing and conducting power plant projects has made government seek a modern attitude. this paper tries to use the topics that have been employed in automotive in...