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Fri, 12 Feb 2016 14:09:15 EST
Rare beluga data show whales dive to maximize meals
As the Arctic continues to change due to rising temperatures, melting sea ice and human interest in developing oil and shipping routes, it's important to understand belugas' baseline behavior, argue the authors of a new article.
Fri, 12 Feb 2016 13:07:34 EST
Software optimized on Mira advances design of mini-proteins for medicines, materials
Scientists are using Mira to virtually design unique, artificial peptides, or short proteins. Peptides have the best properties of two different classes of medical drugs today and could enable future, peptide-based medicines with few side effects. As researchers begin to develop new peptides, they are optimizing their in-house software to test thousands of potential peptide structure designs in tandem, requiring a state-of-the-art supercomputer.
Fri, 12 Feb 2016 13:05:23 EST
Study finds mechanism by which obesity promotes pancreatic and breast cancer
Investigators may have uncovered a novel mechanism behind the ability of obesity to promote cancer progression. The study focused on the effects of obesity on pancreatic and breast cancer, since more than half of those diagnosed with such tumors are overweight or obese.
Fri, 12 Feb 2016 13:05:19 EST
Ants were socializing -- and sparring -- nearly 100 million years ago, study finds
Like people, ants have often fought over food and territory. But ants began fighting long before humans: at least 99 million years ago, according to a fossil insect expert.
Fri, 12 Feb 2016 13:05:14 EST
Imaging with an 'optical brush'
A new imaging device has been developed that consists of a loose bundle of optical fibers, with no need for lenses or a protective housing. The fibers are connected to an array of photosensors at one end; the other ends can be left to wave free, so they could pass individually through micrometer-scale gaps in a porous membrane, to image whatever is on the other side.
Fri, 12 Feb 2016 13:01:45 EST
When the boss's ethical behavior breaks bad
Is your boss ethical? Does he or she do what's right, as opposed to what's profitable? If so, they may turn downright abusive the next day. New research on leader behavior suggests ethical conduct leads to mental exhaustion and the "moral licensing" to lash out at employees.
Fri, 12 Feb 2016 10:24:31 EST
Catastrophic failure of South American Ice Age dam changed Pacific Ocean circulation and climate
The catastrophic release of fresh water from a vast south American lake at the end of the last Ice Age was significant enough to change circulation in the Pacific Ocean according to new research. The study reveals that the lake, which was about one third the size of Wales, drained several times between 13,000 and 8,000 years ago, with devastating consequences.
Fri, 12 Feb 2016 10:23:47 EST
Sleep apnea takes a toll on brain function
People with sleep apnea show significant changes in the levels of two important brain chemicals, which could be a reason that many have symptoms that impact their day-to-day lives, new research concludes.
Fri, 12 Feb 2016 10:23:44 EST
Genome studies can help identify lifestyle risks for diseases
A type of study commonly used to pinpoint genetic variants associated with diseases can also be used to identify the lifestyle predictors that increase the risk of a disease -- something that is often overlooked in genetic studies.
Fri, 12 Feb 2016 10:23:40 EST
Gene switch may repair DNA and prevent cancer
New discoveries are bringing scientists closer to understanding how DNA repairs itself with a chemical modification which, when absent, can lead to tumor formation.
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