background: this study investigated the relationship between people's attitudes towards the safety culture and comparing its perceptions among three levels of refinery personnel: top management, supervisory staff and frontline workers by conducting safety culture survey. methods: a questionnaire comprising general information and 59-safety attitude statement were distributed among 237 workers, ...

background: recently, there have been many studies on the harmful effects of radiation and the regulations on radiation safety have been toughened both at the in nation and abroad. this study aims to identify the perceptions and actions taken as to radiation safety, and the degree of knowledge related to radiation held by the radiologists working in large hospitals. materials and methods: the r...

awareness and preparedness for prevention of crisis plays an important role in minimizing its impacts and fatalities. this study suggests how to enhance the efficiency of crisis management through applying a resilience engineering (re) approach. the aim of this study was to design a questionnaire to assess crisis management based on re approach. in this descriptive survey, four principles of re...

To enhance Patient’s safety, we need effective methods for risk management. This work aims to propose an integrated approach to risk management for a hospital system. To improve patient’s safety, we should develop flexible methods where different aspects of risk and type of information are taken into consideration. This paper proposes a fuzzy Bayesian network to model and analyze risk in the op...