In the News
Mutant Gene Shatters Nerves: Was Abe Lincoln Affected? If you bend a knee or an elbow, the nerves in your limbs stretch but do not break. A University of Utah study suggests why: A gene produces a springy protein that keeps nerve cells flexible. When the gene was disabled in tiny nematode worms, their nerve cells literally broke. The discovery may provide a new explanation for spinocerebellar ataxia type 5 (SCA5) -- a disease previously tied to a human version of the gene and identified in 11 generations of U.S. President Abraham Lincoln's family, starting with his paternal grandparents. SCA5 may have afflicted Lincoln himself. The new study suggests how. Gene Therapy Can Improve Muscle Mass And Strength In Monkeys, Research Scientists are one step closer to clinical trials to test a gene delivery strategy to improve muscle mass and function in patients with certain degenerative muscle disorders. At The Root Of Nutrient Limitation, Ecosystems Are Not As Different As Anyone who has thrown a backyard barbecue knows that hot dogs are inexplicably packaged in different numbers than buns -- eight hot dogs per pack versus 10 hot dog buns. Put in ecological terms, this means that weenie roasts are 'hot-dog limited'-- the extra buns are worthless without hot dogs to fill them. Such limiting factors are a cornerstone of natural ecology, where phosphorus or nitrogen limits plant production in most ecosystems. Holy Smoke! Hacked IPhone Explodes Many iPhone hacks require opening up the case -- and that can lead to trouble, as one would-be hacker discovers, when a wayward screwdriver punctures the battery, causing it to explode. Cancer-causing Protein Can Also Help Fight The Tumors It Causes New research uses the Ras protein to fight its own malign effects. Nature's Process For Nitrogen Fixation Caught In Action A research team from Utah State University, Virginia Tech, and Northwestern University asked whether the biological process for nitrogen fixation, carried out by microbes that contain the enzyme nitrogenase, follows the same pathway as recently reported chemical methods. Their research method resulted in the ability to witness steps in the biological process that enables some microorganisms to convert atmospheric nitrogen to nutrients. Molecular middle managers make more decisions than bosses Organisms are structured at the molecular level in ways similar to social hierarchies. In some, master genetic regulators call most of the shots, and in others most of life's activities are carried out by more egalitarian collaborations. Saturn's Moon Iapetus Shows A Bulging Waistline Images returned by NASA's Cassini spacecraft cameras during a New Year's Eve flyby of Saturn's moon Iapetus (eye-APP-eh- tuss) show startling surface features that are fueling heated scientific discussions about their origin. Special Reports: Lewis &Clark Bicentennial Collection of columns from October 2005 by Seattle Post-Intelligencer editorial cartoonist and columnist David Horsey, "on the path of Lewis and Clark, from the Continental Divide to the Pacific."His "modest mission: to cover in nine days the ground it took Lewis and Clark three months to cross."Includes illustrations, photos, and dispatches from Horsey's journey along the route of Lewis and Clark. Queen Bee Promiscuity Boosts Hive Health Though promiscuity may be risky behavior for humans, it's healthy for honeybees: Queen honeybees who indulge in sexual surfeits with multiple drones produce more disease-resistant colonies than monogamous monarchs, according to a new study.
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