background: the bibliometric methods have been used in many disciplines of sciences to study the scientific production and research trends. in this study, they were used to investigate research trends related to the risk assessment of cryptosporid­ium pathogen in water field. methods : data were obtained on the scopus database from 1993 to 2013. re­search tendency was investigated by analyzing ...

one of the fundamental issues in the ethics of medical researches is cost-benefit assessment which consists a main part of related codes. this article is aimed to propose a model for ethical assessment of researches with judgment about their costs and benefits. after reviewing related materials and our experiences and discussions with experts, we proposed a model for ethical assessment of costs...

disasters are one of the most important challenges which must be considered by every management system. higher education centers have high disaster risk because of their risk factors (existence of historical and scientific documents and resources and expensive laboratory equipment in these centers emphasizes the importance of disaster management). moreover, the existence of young volunteers of ...

weather and climate have considerable influence on the concentration of air pollutants such as particles and gases. the range and concentration of these particles and gases are very dependent on prevailing weather conditions and air currents. this research concentrates on health effects of benzene, one of the air pollutants of tehran, as a major city. the concentration of benzene emission to ai...

background: in the current study,the hazard quotient, the hazard index (hi) and spatial variations of fe,mn,cu and cr in drinking water sources of andimesk-shush, khuzestan province, southern iranaquifer were assessed. methods: we compared theconcentrations of aforementioned heavy metals in wells and springs inandimeshk and shush regions. the non-carcinogenic risk assessment of heavy metals was...

background: the aim of this study was assessment the risk management status of waste anesthetic gases in academicals hospitals in iran to prevent from harmful effects of these gases on employees' health. methods: a descriptive-analytic study was designed in 2011. standard structured checklist developed by ecri institute (emergency care research institute) was applied. checklists were filled ons...

background: chemical contaminants present in the work environments include gases, vapors, and solid and liquid suspended particles. the number of factories producing chemicals has increased significantly. each year, new products are introduced into the market. consequently, the number of employees at risk of exposure to these materials is increased. hazardous chemicals are used in the petrochem...

appreciated by most men. In the business world, risk, when adroitly judged, can lead to significant rewards. By contrast, most men tend to be somewhat risk averse, not only financially, but also more importantly in terms of approaching their health. Attitudes between the sexes vary, as does their willingness to seek medical help and advice. Women tend to seek help earlier and are much more like...

A method is presented for identifying an expected profitable set of customers, to offer them an additional insurance product, by estimating a customer specific latent risk profile, for the additional product, by using the customer specific available data for an existing insurance product of the specific customer. For the purpose, a multivariate credibility estimator is considered and we investi...