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Circadian Clocks

Known as: Circadian Timing System, Timing System, Circadian, Clocks, Circadian 
Biological mechanism that controls CIRCADIAN RHYTHM. Circadian clocks exist in the simplest form in cyanobacteria and as more complex systems in… 
National Institutes of Health

Papers overview

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Highly Cited
2000
Highly Cited
2000
Circadian rhythms in several species can be phase-shifted by procedures that stimulate locomotor activity (“exercise”) during the… 
Highly Cited
1997
Highly Cited
1997
Evidence from a number of laboratories over the past 12 years has established that cyanobacteria, a group of photosynthetic… 
Highly Cited
1989
Highly Cited
1989
A NUMBER of environmental and pharmacological stimuli capable of inducing phase shifts and/or period changes in the circadian… 
Highly Cited
1980
Highly Cited
1980
The suprachiasmatic nucleus (SCN) has been proposed as a site for an endogenous circadian oscillator in mammals, since lesions of… 
Highly Cited
1978
Highly Cited
1978
Seven circular manic-depressives were studied through complete of cycles of mania and depression. In five subjects, there was… 
Highly Cited
1976
Highly Cited
1976
Many mammalian species display seasonal breeding patterns correlated with annual cycles of change in the physiology and… 
Highly Cited
1974
Highly Cited
1974
The biological clock may be a feedback system involving ions and ion-transport channels. 
Highly Cited
1968
Highly Cited
1968
1. The circadian rhythms of rectal temperature and biogenic amine levels in mid‐brain and caudate nucleus have been measured in…