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, ...

Pharmacy students in the six-year education system are expected to combine their knowledge obtained from many lectures and to develop problem-solving abilities in therapeutics. These two expectations are considered to be difficult in the conventional education system. Therefore we introduced a new problem-based learning (PBL) method in the class on "pharmacotherapeutics," which was held in the ...

In this work, a model for the nitrogen chemistry in the oxy-fuel combustion of pulverized coal has been developed. The model is a chemical reaction engineering type of model with a detailed reaction mechanism for the gas-phase chemistry, together with a simplified description of the mixing of flows, heating and devolatilization of particles, and gas solid reactions. The model is validated by co...

The modeling of cohort data based on the Armitage-Doll multistage model of the carcinogenic process has gained popular acceptance as a methodology for quantitative risk assessment for estimating the dose-related relationships between different occupational and environmental carcinogenic exposures and cancer mortality. The multistage model can be used for extrapolation to low doses relevant for ...

To help inform the setting of dust control standards in coalmines, this brief review summarises the most recent and reliable exposure-response relations, for damaging respiratory effects, derived from the Pneumoconiosis Field Research (PFR). Collecting data over 38 years in the British coal industry, this was a programme of prospective research on the respiratory health of coal miners, characte...