نتایج جستجو برای: working shifts
تعداد نتایج: 258770 فیلتر نتایج به سال:
This paper presents a novel bi-objective manpower scheduling problem that minimizes the penalty resulted from employees’ assignment at lower skill levels than their real skill and maximizes employees’ utility for working at a special skill level in some shifts or on some days. Employees are classified in two specialist groups and three skill levels in each specialization. In addition, the prese...
BACKGROUND Oxidative stress is believed to have a role in the development of chronic diseases. It is also known that long-term night and shift work in nurses might be associated with many health-related problems like fatigue, sleep problems, anxiety and difficulties in maintaining regular lifestyles. AIM In this study, we aimed to evaluate the changes of oxidative stress parameters and anxiet...
PURPOSE The aim of this study was to investigate whether rotating shift work increases occupational stress in nurses. METHODS This study measured shift work scheduling and occupational stress by using the Effort-Reward Imbalance model with self-reported questionnaires in a sample of 654 female nurses. RESULTS Overcommitment risk was higher in nurses who worked rotating shifts than in those ...
Circadian blood pressure rhythm differences in normotensive subjects working day versus night shifts
A discontinuity, a rounded step function, is shown to exist in the fitted linear slope of the recall distributions as the recall shifts from the emptying of working memory (positive slope) to the second stage (negative slope). The discontinuity leads to a first estimate of the capacity of working memory at 4-4.5 items. Working memory accounts for the recency effect. The primacy effect comes fro...
anxiety is a feeling of worry and excessive concern against obscure danger about inner or outer threat, which occur in form of ambiguous fear. it finally causes physical problem and impairs social and occupational functions. anxiety is the most common mental disorder. nursing totally is a difficult job and because of their working environmental and activity, they always encountering with damage...
Background and aims: The circadian rhythm is one the most important biological rhythms that regulates the sleep-wake cycle and repeats every 24 hours roughly. This 24-hour cycle includes physiological and behavioral rhythms like sleep cycle. Any disruptions in the body’s natural rhythms can cause many problems, such as drowsiness, sleep deprivation, reduced physical activity, and mental functio...
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