News tagged with circadian
New pattern in our biological clock overturns long-held theory
Oct 08, 2009 |
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(PhysOrg.com) -- University of Michigan mathematicians and their British colleagues say they have identified the signal that the brain sends to the rest of the body to control biological rhythms, a finding that overturns ...
Circadian clock may be critical for remembering what you learn
Biology /
Oct 08, 2008 |
4.6 / 5 (18) |
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(PhysOrg.com) -- The circadian rhythm that quietly pulses inside us all, guiding our daily cycle from sleep to wakefulness and back to sleep again, may be doing much more than just that simple metronomic task, ...
A Biological Basis for the 8-Hour Workday? Researchers uncover 8- and 12-hour Cycles of Gene Activity
Apr 22, 2009 |
4.8 / 5 (12) |
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(PhysOrg.com) -- The circadian clock coordinates physiological and behavioral processes on a 24-hour rhythm, allowing animals to anticipate changes in their environment and prepare accordingly. Scientists ...
Scientists Discover Hunger's Timekeeper
Aug 28, 2009 |
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(PhysOrg.com) -- Researchers at Columbia and Rockefeller Universities have identified cells in the stomach that regulate the release of a hormone associated with appetite. The group is the first to show that ...
Circadian rhythm-metabolism link discovered
Jul 24, 2008 |
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UC Irvine researchers have found a molecular link between circadian rhythms – our own body clock – and metabolism. The discovery reveals new possibilities for the treatment of diabetes, obesity and other related ...
The food-energy cellular connection revealed
Oct 15, 2009 |
4.6 / 5 (8) |
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Our body's activity levels fall and rise to the beat of our internal drums—the 24-hour cycles that govern fundamental physiological functions, from sleeping and feeding patterns to the energy available to our cells. Whereas ...
How would Einstein use e-mail? Letter writers of yore had same correspondence patterns as e-mail users today
Sep 25, 2009 |
3.7 / 5 (9) |
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You're not as different from Albert Einstein and Charles Darwin after all, at least when it comes to patterns of correspondence.
Paper sheds new 'light' on fascinating rhythms of the circadian clock
Biology /
Feb 16, 2009 |
4.6 / 5 (7) |
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(PhysOrg.com) -- Scientists have long known that interrupting the 24-hour circadian rhythm plays havoc with the lives and health of medical, military and airline personnel, factory employees and travelers.
Not just bleach: Hydrogen peroxide may tell time for living cells
Nov 03, 2009 |
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If a circadian rhythm is like an orchestra - the united expression of the rhythms of millions of cells - a common chemical may serve as the conductor, or at least as the baton.
Scientists identify stomach’s timekeepers of hunger
Medicine & Health / Neuroscience
Aug 14, 2009 |
4.7 / 5 (6) |
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(PhysOrg.com) -- New York collaborators at Columbia and Rockefeller Universities have identified cells in the stomach that time the release of a hormone that makes animals anticipate food and eat even when they are not hungry. ...
Scientists model 3D structures of proteins that control human clock
Apr 11, 2009 |
4.5 / 5 (6) |
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In an Early Edition issue of The Proceedings of the National Academy of Sciences (PNAS) on April 9, 2009, the researchers report that they have been able to determine the molecular structure of a plant photolyase protein that ...
How research into 'clocks' in plants could change our lives
Biology /
Dec 19, 2008 |
4.8 / 5 (5) |
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(PhysOrg.com) -- From ensuring blooms for Mother’s Day to easing sleep disruption due to jet lag or shiftwork, new research into the ‘clocks’ in plants by a team of University of Glasgow plants scientists ...
Tinkering with the circadian clock can suppress cancer growth
Feb 03, 2009 |
4.6 / 5 (5) |
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Researchers at the University of North Carolina at Chapel Hill have shown that disruption of the circadian clock - the internal time-keeping mechanism that keeps the body running on a 24-hour cycle - can slow the progression ...
New approach sheds light on ways Circadian disruption affects human health
Jul 16, 2008 |
3.1 / 5 (7) |
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Growing evidence indicates that exposure to irregular patterns of light and darkness can cause the human circadian system to fall out of synchrony with the 24-hour solar day, negatively affecting human health ...
Molecular basis and regulation of circadian rhythms in plants
Biology /
Jul 01, 2008 |
5 / 5 (4) |
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Dr. C. Robertson McClung and his colleagues are investigating the genetic basis and molecular mechanisms of circadian cycling and regulation in plants. Dr. McClung, of the Department of Biological Sciences, Dartmouth College, ...
