Tinkering With Circadian Clock Can Suppress Cancer Growth:
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 of cancer.
How Your Body Clock Avoids Hitting The Snooze Button:
Scientists from Queen Mary, University of London have discovered a new part of the mechanism which allows our bodyclocks to reset themselves on a molecular level. ---------- Professor Stanewsky explains: "A circadian photoreceptor called Cry is activated by light in the blue spectrum. Once active, Cry then becomes able to bind to a protein called Jetlag. The Jetlag protein then helps to destroy another protein called Timeless, which is used to reset the bodyclock.
"Crucially though, we found that Jetlag also helps to destroy the original photoreceptor Cry itself. This allows the Timeless protein to reaccumulate during the next day, making sure that the clock mechanism continues to tick."
Natural Predispositions Determine The Social Roles Of Bees:
Bees have an innate tendency to form social connections. What is the origin of this social behavior? Researchers at the Centre de recherches sur la cognition animale (CRCA) (CNRS/ Université de Toulouse have discovered that distribution of labor, which is a feature of the social organization of bee colonies, is a result of the existence of insects specialized in aversive and appetitive responses to stimuli. They also noted that these same specializations also determine the learning and memorization abilities of individual bees.
Early Whales Gave Birth On Land, Fossil Find Reveals:
Two newly described fossil whales---a pregnant female and a male of the same species--reveal how primitive whales gave birth and provide new insights into how whales made the transition from land to sea.
At 2,500 Pounds And 43 Feet, Prehistoric Snake Is Largest On Record:
The largest snake the world has ever known -- as long as a school bus and as heavy as a small car -- ruled tropical ecosystems only 6 million years after the demise of the fearsome Tyrannosaurus rex, according to a new discovery published in the journal Nature.
Researchers Help Unlock The Secrets Of Gene Regulatory Networks:
A quartet of studies by researchers at the California Institute of Technology (Caltech) highlight a special feature on gene regulatory networks recently published in the Proceedings of the National Academy of Sciences (PNAS). The collection of papers, "Gene Networks in Development and Evolution Special Feature, Sackler Colloquium," was coedited by Caltech's Eric H. Davidson, the Norman Chandler Professor of Cell Biology. His coeditor was Michael Levine, professor of genetics, genomics and development at the University of California, Berkeley.
Happy Employees Are Critical For An Organization's Success, Study Shows:
One's happiness might seem like a personal subject, but a Kansas State University researcher says employers should be concerned about the well-being of their employees because it could be the underlying factor to success.
Neurobiologist Proposes 'The End Of Sex As We Once Knew It':
Women are not from Venus any more than men are from Mars. But even though both sexes are perfectly terrestrial beings, they are not lacking in other differences. And not only in their reproductive organs and behavior, either, but in such unsexy characteristics as the propensity for drug abuse, fine motor control, reaction to stress, moods and many brain structures.
An international research team of scientists from UC Riverside, the Massachusetts Institute of Technology and other institutions has found the oldest evidence for animals in the fossil record.
Can Cannibalism Fight Infections?:
Whenever humans create a new antibiotic, deadly bacteria can counter it by turning into new, indestructible super-bugs. That's why bacterial infection is the number one killer in hospitals today. But new research from Tel Aviv University may give drug developers the upper hand in outsmarting bacteria once and for all.
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