News tagged with clock
New pattern in our biological clock overturns long-held theory
Oct 08, 2009 |
4.9 / 5 (22) |
4
(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 ...
New 167-processor chip is super-fast, ultra energy-efficient
Apr 22, 2009 |
4.7 / 5 (21) |
4
A new, extremely energy-efficient processor chip that provides breakthrough speeds for a variety of computing tasks has been designed by a group at the University of California, Davis. The chip, dubbed AsAP, is ultra-small, ...
A step closer to an ultra precise atomic clock
Apr 16, 2009 |
4.6 / 5 (14) |
7
A clock that is so precise that it loses only a second every 300 million years - this is the result of new research in ultra cold atoms. The international collaboration is comprised of researchers from the ...
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) |
0
(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 |
4.8 / 5 (11) |
0
(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 ...
Body's circadian rhythm tightly entwined with blood sugar control
Oct 05, 2009 |
5 / 5 (10) |
0
Scientists have long struggled to understand the body's biological clock. Its tick-tock wakes us up, reminds us to eat and tells us when to go to bed. But what sets that circadian rhythm?
Graphene could lead to faster chips
Mar 19, 2009 |
4.9 / 5 (10) |
1
(PhysOrg.com) -- New research findings at MIT could lead to microchips that operate at much higher speeds than is possible with today's standard silicon chips, leading to cell phones and other communications ...
Video shows nanotube spins as it grows (w/ Videos)
Nanotechnology / Nanomaterials
Jul 27, 2009 |
4.8 / 5 (9) |
6
(PhysOrg.com) -- New video showing the atom-by-atom growth of carbon nanotubes reveals they rotate as they grow, much like the halting motion of a mechanical clock's second hand. Published online this month ...
Study shows more genes are controlled by biological clocks
Biology /
Aug 29, 2008 |
4.4 / 5 (9) |
0
The tick-tock of your biological clock may have just gotten a little louder. Researchers at the University of Georgia report that the number of genes under control of in living things than suspected only a few years ago. ...
Scientists Create New Robust Genetic Clock
Biology /
Oct 29, 2008 |
4.9 / 5 (8) |
2
UC San Diego bioengineers have created the first stable, fast and programmable genetic clock that reliably keeps time by the blinking of fluorescent proteins inside E. coli cells. The clock's blink rate c ...
The food-energy cellular connection revealed
Oct 15, 2009 |
4.6 / 5 (8) |
1
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 ...
What makes the heart 'tick-tock'
Biology /
Dec 02, 2008 |
4.6 / 5 (7) |
0
Researchers have new evidence to show that the heart beats to its own drummer, according to a report in the December issue of the journal Cell Metabolism. They've uncovered some of the molecular circuitry within the cardio ...
Paper sheds new 'light' on fascinating rhythms of the circadian clock
Biology /
Feb 16, 2009 |
4.6 / 5 (7) |
0
(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.
Probing question: What is a molecular clock?
Biology /
Nov 20, 2008 |
4.3 / 5 (7) |
0
It doesn't tick, it doesn't have hands, and it doesn't tell you what time of day it is. But a molecular clock does tell time -- on an epoch scale. The molecular clock, explained S. Blair Hedges, is a tool ...
Portable Precision: A New Type of Atomic Clock
Dec 10, 2008 |
4.3 / 5 (7) |
4
(PhysOrg.com) -- The most accurate atomic clocks in the world are based on the output of cesium atoms. These ultra-precise fountain clocks measure the frequency and time interval of seconds by using a fountain-like movement ...
