In the News
Long-lost, Dangerous Asteroid Is Found Again Echoing the re-discovery of America by the Spanish long after an earlier Viking reconnaissance, astronomers have learned that a recently observed asteroid -- one that could potentially hit the Earth -- was actually first observed nearly a half-century ago. Researchers at the Minor Planet Center of the Smithsonian Astrophysical Observatory in Cambridge, MA have confirmed work by SETI Institute astronomer Peter Jenniskens that the recently discovered asteroid 2007 RR9 is in fact the long-lost object 6344 P-L. Mathematician's Insight Helps Unravel Knotty Problem New research published in the mathematical journal Geometry and Topology describes a useful pattern of numbers that has lain hidden for almost 100 years in one of the most notable classification schemes for twisted knots. The pattern was discovered by Rice University mathematician Shelly Harvey. It was found in a widely used knot classification scheme that was originally described by the famed French mathematician Henri Poincaré. Scott Adams 'Hacks' His Brain First the Dilbert creator loses his voice due to a rare condition known as spasmodic dysphonia. Now he reveals in an amazingly affecting personal blog post how he learned to speak again. In Bodyhack. Remarkable Physiology Allows Crucian Carp To Survive Months Without Ox Cooling water temperature during the fall prompts the crucian carp to store vast amounts of glycogen in its brain and at the same time reduce the amount of energy its brain needs. These physiological changes keep the brain functioning from February to April, when there is no oxygen in its ponds. The carp, a goldfish cousin, avoids predators this way. Workplace Depression Screening And Enhanced Treatment Improves Product Enhanced and systematic efforts to identify and treat depression in the workplace significantly improves employee health and productivity, likely leading to lower costs overall for the employer, according to a new study. Previous studies have shown that employees who are depressed are less productive and are absent more often. Other studies have shown that organized screening and enhanced depression treatment can significantly improve health. However, few employers have implemented such programs, in part because their return on investment is unclear. Marrying Natural And Social Sciences For Mother Earth's Sake No one says marriage is easy -- but an international group of 16 natural scientists and social scientists are saying the wedding of natural sciences and social sciences is called for. There was a problem, for example, in Wisconsin, where indigenous populations compete with recreation. Smelt was introduced as a food source for game fish like walleye. The plan backfired when the smelt gobbled the young walleye, decimating the population. Autism Problems Explained In New Research New research from Melbourne's Howard Florey Institute helps to explain why children with autism spectrum disorders (autism) have problem-solving difficulties.Using functional magnetic resonance imaging technology (fMRI) the Florey scientists have shown that children with autism have less activation in the deep parts of the brain responsible for executive function (attention, reasoning and problem solving). Pop Goes the Window A website lets you test your pop-up blocker's mojo. Plus: A preview of Opera's new browser for portable Nintendo game consoles. In Monkey Bites. Asymptomatic Peripheral Artery Disease Prevalence Is Rising The prevalence of asymptomatic peripheral artery disease (PAD) is steadily increasing among American adults. PAD occurs when fatty deposits accumulate in the inner linings of artery walls, restricting blood flow and needed oxygen to the legs, feet, arms and other areas of the body. PAD increases the risk of dying from heart disease and stroke. Retina Adapts To Seek The Unexpected, Ignore The Commonplace Researchers at Harvard University have found evidence that the retina actively seeks novel features in the visual environment, dynamically adjusting its processing in order to seek the unusual while ignoring the commonplace. The scientists report in this week's issue of the journal Nature on their finding that this principle of novelty-detection operates in many visual environments.
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