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A new study clearly establishes a partial genetic basis underlying racial differences in slow-wave sleep, suggesting that it may be possible to develop sleep-related therapies that target specific genetic variants. Using a panel of 1,698 ancestry informative genetic markers, the study found that greater African genetic>
Throughout history, human beings have used the whistle for everything from hailing a cab to carrying a tune. Now, an orangutan's spontaneous whistling is providing scientists at Great Ape Trust of Iowa new insights into the evolution of speech and learning. >
Autopsies usually point to a cause of death but now a study of brain tissue collected from people who committed suicide may explain an underlying cause of major depression and suicide. The international research group, led by Dr. Michael O. Poulter of Robarts Research Institute at The University of Western Ontario>
Neanderthals had shorter legs than their Homo sapiens contemporaries, leading many to believe that the locomotion of the former was less efficient (basically, they have to take more steps to traverse a certain distance). But a new study, performed by researchers at the John Hopkins School of Medicine, questions this>
A new type of single-dose vaccine comes in a nasal spray and doesn't require refrigeration. The latest design and testing of these "nanovaccines" sets the stage to dramatically alter the public health landscape because it can get more people vaccinated around the world squash the looming threats of emerging>
    In a column posted a few days ago (November 1) I mentioned that my friend John Evans, a Cambridge (England) mathematician, has developed a general formula for estimating biocomplexity. It is quite simple, using only two variables: the number of units in a system, and the number of connections (interactions)>