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COORDINATING PHOTOSYNTHETIC ACTIVITY: CIRCADIAN RHYTHMS (Search Map)
Circadian rhythms are the daily repeating patterns of many organisms, such as the closing of flowers at night or opening of stomata during the day. ...
circadian rhythm (biology) -- Britannica Online Encyclopedia (Search Map)
Britannica online encyclopedia article on circadian rhythm (biology), the cyclical 24-hour period of human biological activity.
Circadian rhythms: Eyes of the clock (Search Map)
of circadian rhythms have been identified: timeless, dclock ... with a circadian rhythm, even in isolated cell culture. Although opsins are expressed in ...
Biology 202 (Search Map)
The circadian rhythm appears to be based on negative feedback loops (11) ... The circadian rhythm begins around noon when the per and tim genes transcribe the DNA into RNA. ...
Journal of Circadian Rhythms | Full text | A new approach to ... (Search Map)
Journal of Circadian Rhythms 2008, 6:7doi:10.1186/1740-3391-6-7 ... Disruption of circadian rhythms has been associated with a variety of maladies. ...
Journal of Circadian Rhythms (Search Map)
Publishes papers on all aspects of circadian and nycthemeral (daily) rhythms in living organisms, including processes associated with photoperiodism and daily torpor.
HHMI News: Shedding Light on Circadian Rhythms (Search Map)
Circadian rhythms, the patterns of activity that occur on a 24-hour cycle, are important biological regulators in virtually every living creature. ...
Circadian rhythm (Search Map)
A circadian rhythm is a roughly 24 hour cycle in the physiological processes of living beings, including plants, animals, fungi and cyanobacteria. ...
Circadian Rhythm Affects Memory | LiveScience (Search Map)
When the circadian system breaks down, so does memory. ... It might be that the degradation of circadian rhythms in elderly people may contribute to their short-term ...
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