Travel across multiple time zones results in desynchronization of environmental time cues and the sleep-wake schedule from their normal phase relationships with the endogenous circadian system. Circadian misalignment can result in poor neurobehavioral performance, decreased sleep efficiency, and inappropriately timed physiological signals including gastrointestinal activity and hormone release....

We address a real-world optimization problem: the scheduling of a Bank Information Technologies (IT) staff. This problem can be defined as the process of constructing optimized work schedules for staff. In a general sense, it requires the allocation of suitably qualified staff to specific shifts to meet the demands for services of an organization while observing workplace regulations and attemp...

The aim of this study was to explore the effect of work related problem on shift workers’ attitude, aptitude and job satisfaction. A total of 240 shift workers in five Ferro-alloy industries of Orissa working in rotating three shift systems were participated in this study. The findings indicated that shift work has major adverse impact on psychological, social, family and conjugal life of shift...

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...

BACKGROUND Shift work has been identified as a risk factor for several cancer sites in recent years, with melatonin as a potential intermediate on the proposed causal pathway. This study examined the influence of nighttime light exposure on melatonin levels among 123 rotating shift nurses. METHODS Nurses working a rotating shift schedule (two 12-hour days, two 12-hour nights, and five days of...