The two educational methods equally increase knowledge and performance, but the role-playing method may have a more desirable and lasting effect on performance.

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Given the importance of physical and mental well-being of nurses and the moral and professional responsibility of an organization to protect staff health, it is of prime importance to examine the inpatient psychiatric nurses' experiences to better understand them and hopefully use such knowledge so as to improve their work life.

The present work examined data obtained during the analysis of Hearing Reduction (HR) of Abadan Petroleum Refinery (Abadan PR) workers of Iran with a history of disease and injuries. To this end, all workers in the refinery were chosen. In this research, the effects of history of disease and injury including trauma, electric shock, meningitis-typhoid disease and genetic illness as well as contact with lead, mercury, CO2 and alcohol consumption were evaluated (Lie, et al., 2016) [1]. After the completion of the questionnaires by workers, the coded data were fed into EXCELL. Statistical analysis of data was carried out, using SPSS 16.

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