نتایج جستجو برای: night light
تعداد نتایج: 426123 فیلتر نتایج به سال:
Introduction[N1] :One of these annoying stimuli and a major source of stress in the NICU is sound. In neonatal intensive care units, sounds with different intensities and frequencies are produced from different sources such as fan devices, intermittent alarms, ventilators, telephones, door opening and closing, and staff conversations; Studies have reported that the average noise level in the NI...
BACKGROUND Light-at-night has been shown in experimental studies to disrupt melatonin production but this has only partly been confirmed in studies of night shift workers. In this cross-sectional study, we examined the circadian variation of melatonin in relation to shift status, individual levels of light-at-night exposure, and diurnal preference, an attribute reflecting personal preference fo...
The nighttime is undergoing unprecedented change across much of the world, with natural light cycles altered by introduction artificial emissions. Here we review extent and dynamics at night (ALAN), benefits that ALAN provides, environmental costs creates, approaches to mitigating these negative effects, how are likely in future. We particularly highlight consequences increasingly widespread us...
Song, Xiaowei, and Benjamin Rusak. Acute effects of light on body temperature and activity in Syrian hamsters: influence of circadian phase. Am J Physiol Regulatory Integrative Comp Physiol 278: R1369–R1380, 2000.—Light exposure at night causes an acute increase in human body temperature, which normally falls during the night. This change is largely attributable to the suppression by light of t...
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