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First molars provide insight into evolution of great apes, humans Scientists have gained new insights into the timing of molar emergence and its relation to growth and reproduction in apes. "We can use the same techniques to calculate ages at first molar emergence from the fossils of early hominids that just happened to die while their first molars were erupting," researchers report. Motor vehicle crashes more common among young drivers who engage in se Drivers who engaged in self-harm were at increased risk of motor vehicle crashes, even after controlling for psychological distress and substance abuse, found a study of 18,871 Australian drivers. Laser Surgery Does Not Appear To Have Long-term Effects On Corneal Cel Laser eye surgery to correct vision problems does not appear to be associated with lasting changes to cells lining the inside of the cornea at nine years after the procedure, according to a new report. New Nanostructure Technology Provides Advances In Eyeglass, Solar Ener Chemical engineers have invented a new technology to deposit "nanostructure films" on various surfaces, which may first find use as coatings for eyeglasses that cost less and work better. Ultimately, the technique may provide a way to make solar cells more efficiently produce energy. [Ironic] LONDON: A jailed cocaine dealer is working as Santa Claus on John Tams, who dons beard, boots and red suit to work in a cafe's Christmas grotto, said he wanted to give something back to the community... Positioning Pelvic Cancer Patients On Stomachs For Radiation Yields Be Positioning pelvic cancer patients on their stomachs rather than their backs is a better method for delivering radiation therapy, according to new research. Because patients return for multiple therapies, being able to reproduce the positioning of the patient allowed more precision, which reduces toxicity. Care-seeking Behavior Associated With 'Upper-GI Symptoms' Patients with upper gastrointestinal (GI) complaints visit their general practitioner more often than patients with other conditions. Researchers found that people with dyspepsia, heartburn, epigastric discomfort and other upper-abdominal complaints had almost twice as many GP contacts, which were ultimately associated with problems in all organ systems. These patients were twice as frequently referred to specialist care and received twice as many prescriptions. Cell's Powerhouses Dismantled: Complete Inventory Of All Proteins In M All of life is founded on the interactions of millions of proteins. These are the building blocks for cells and form the molecular mechanisms of life. The problem is that proteins are extremely difficult to study, particularly because there are so many of them and they appear in all sizes and weights. Now, researchers have made a breakthrough in protein research -- making virtually the complete inventory of all the proteins in the mitochondria, the energy producers found in every cell. Teens Spend More Time At Computers, Become Less Active As They Grow Ol As they grow older, teenagers are spending more time in front of the computer and television and less time participating in physical activities, according to researchers at the University of Minnesota School of Public Health. Halving Daily Cigarette Quota Has No Health Benefit Halving the number of cigarettes smoked every day in the belief that it will stave off an early death makes no difference, suggests research in Tobacco Control. Although reducing consumption may have a place as a temporary measure in smoking cessation, this study proves quite clearly that the only safe way out of the risk caused by smoking is to quit, say the authors.
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