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Dissolved organic matter (DOM) is the precursor of disinfection by-products (DBPs) which is widely found in the aquatic environment. The analysis of DOM in raw water is helpful to evaluate the formation potentials of DBPs. However, there is relatively little research on the DOM identification of raw water in northern China. In this study, the variation in DOM in M reservoir water in one year by fluorescence excitation-emission matrix-parallel factor analysis (EEM-PARAFAC) was investigated to evaluate the DBP formation potential

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Radiation technologists usually perform several physical tasks as part of their work routine that are related to imaging equipment and handling patients. These kinds of physical activities increase their risk of developing musculoskeletal symptoms (MSS). To determine the prevalence and causative factors of MSS among radiation technologists in Saudi Arabia. A previously validated and published questionnaire was sent electronically to 800 radiation technologists in Saudi Arabia. It focused on the presence and prior diagnosis of MSS. Quest