Background and Objectives: Work sampling is a useful technique to characterize how employees allocate their work time to various activities. Given the value of nurses’ time for quality health care delivery, characterization of nursing time distribution may provide useful information for optimal use of nursing staff. The purpose of the present study was to explore time allocatio...

shiftwork that affects diverse aspects of human life is arranged in various schedules. the main purpose of this study was to compare psycho-social problems among employees working in different 12-hour shift schedules of iranian petrochemical industries. this cross-sectional study was carried out at eight petrochemical companies in asalooyeh area. the study population consisted of 549 shift work...

Introduction: Exposure to the low frequency electric and magnetic fields (ELF-EMF) is very common in workers occupied in the combined cycle power plant during work shifts  The present study aimed to measure ELF-EMF flux density among shift and non-shift workers, determine job stress among workers and office workers, and identify major factors associated with job stress in the studied groups. M...

Municipality of Tehran with huge number of employees and with the aim to reduce stress and promote the work efficiency, seriously wants to achieve suitable and utilizable studies. Osipow's job stress test is one of the best tools to reach this aim. Data population includes securities building of municipality of Tehran (88 persons from region 18 and 72 persons from region 20), who were randomly ...

This commentary intends to instigate discussions about upcoming epidemiologic research, and its interpretation, into putative links between shift work, involving circadian disruption or chronodisruption [CD], and the development of internal cancers.In 2007, the International Agency for Research on Cancer (IARC) convened an expert group to examine the carcinogenicity of shift work, inter alia ch...

PURPOSE To examine the effect of designed dynamic light on staff's quality of sleep with regard to sleep efficiency, level of melatonin in saliva, and subjective perceptions of quality of sleep. METHODS An intervention group working in designed dynamic light was compared with a control group working in ordinary institutional light at two comparable intensive care units (ICUs). The study inclu...