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Introduction. The main purposes of this study were to investigate shift-work-related health problems in 12-h shift schedule and to identify major factors associated with these problems. Materials and methods. This cross-sectional study was conducted at 8 petrochemical plants. The study population consisted of 1203 workers (549 shift and 654 day workers). Data on personal details, the shift schedule...
Background. Assessment of the level of exposure to work-related musculoskeletal disorders (WMSDs) risk factors can be an appropriate basis for planning and implementing an interventional ergonomics program in the workplace. This study was conducted among workers of an Iranian sugar-producing factory to determine WMSD prevalence rate among production workers and to assess the level of exposure to WMSD...
What is important for an identification system is to be accurate, low cost, fast, and safe. Almost all current identification methods such as fingerprint, face, hand palm and iris recognition, are vulnerable considering plastic surgeries and some other changes in face, palm and finger print, while this is not the case for the retina. Human retina would never change during one's life and thus the uniqueness...
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