Author/Editor		Starc, Vito
Title		Cirkadiani ritmi in premiki delovnega časa
Translated title		Circadian rhythms and shifting wokring-time
Type		članek
Source		Delo Varn
Vol. and No.		Letnik 42, št. 4
Publication year		1997
Volume		str. 187-94
Language		slo
Abstract		The rhythm of some periodical physiological phenomena and sleeping are important factors which have a decisive effect on the effectiveness during the working process in shifts. For this purpose we have laid out some general characteristics of cirkadian rhythms, particularities of the alternating of waking state and sleep, the temperature of some hormones and the readiness for work. Additionally a modern overview on some sleep processes is given which are important for understanding the sleeping needs and effects of sleep deficiencies. It is shown that the of sleep has a considerable effect on the mental functions but very little on physical abilities and weakens the immune system. Two analytical models are shown, one for the analysis of the effect of sleep or rest on thelack of sleep and the other for the analysis of the effect of the cirkadian rhythm on the readiness for work.
Descriptors		WORKPLACE WORK SCHEDULE TOLERANCE CIRCADIAN RHYTHM BODY TEMPERATURE PROLACTIN HYDROCORTISONE SLEEP SLEEP DEPRIVATION EFFICIENCY