In the News
Tilapia feed on Fiji's native fish The poster child for sustainable fish farming -- the tilapia -- is actually a problematic invasive species for the native fish of the islands of Fiji, according to a new study. Moss Genes Provided Fuse For Plant Life Explosion Scientists have identified the genes that control the development of root hairs on plants. These genes are also found in moss, a finding that changes our understanding of how the plants we see today evolved over 400 million years ago. Plants use roots to anchor themselves, and to absorb nutrients. Root hairs are single cells that grow from the roots and greatly increase the root's surface area. The researchers identified a pair of genes that are required for root hairs to grow. When these genes were turned off, plants produced hairless roots. Satellite Tags Show How White Sharks Travel Scientists are using satellites to follow the movements of four white sharks that were fitted with tracking tags at North Neptune Island near Port Lincoln, South Australia, in mid-November. Caffeine Reverses Memory Impairment In Mice With Alzheimer's Symptoms Coffee drinkers may have another reason to pour that extra cup. When aged mice bred to develop symptoms of Alzheimer's disease were given caffeine -- the equivalent of five cups of coffee a day -- their memory impairment was reversed, report researchers. Puerto Rico and the Dawn of the Modern Age: Nineteenth- and Early-Twen "Portrays the early history of the commonwealth of Puerto Rico through first-person accounts, political writings, and histories."Topics include "the land and its resources, relations with Spain, the competition among political parties, reform efforts, and recollections by veterans of the Spanish-American War."Materials date from 1831 through 1929, and most are in Spanish. Includes background essays. From the American Memory Project of the Library of Congress. Roald Dahl's 'Fantastic Mr. Fox' Melds Classic Stop-Motion, Cutting-Ed On the surface, stop-motion animation is a very low-tech process, but to create the world of Fantastic Mr. Fox, based on the beloved children's book by Roald Dahl, it required an architecture of cutting-edge technology capable of handling the 5,229 shots with 621,450 frames totaling 120 GB of data.

 Hyperglycemia: New mechanism underlying cardiovascular disease describ Hyperglycemia starts a complex chain of events that damages blood vessels and cause cardiovascular disease. Scientists have now been able to demonstrate why this happens, as well as how the destructive chain can be broken. This discovery represents a crucial step towards an efficient treatment of the vascular injuries that will be the cause of death for most diabetes patients. PSA Velocity's Clinical Usefulness Remains Unclear Some studies have suggested that the rate of change of prostate-specific antigen levels may correspond with prostate cancer survival. But this does not necessarily mean that PSA velocity will be valuable as a prostate cancer screening tool, according to a new article. 'Rosetta Stone' Of Supervolcanoes Discovered In Italian Alps Scientists have found the "Rosetta Stone" of supervolcanoes. A fossil supervolcano has been revealed in a rare uplift of the Earth's crust in the Sesia Valley of the Italian Alps. The discovery will advance scientific understanding of active supervolcanoes, such as Yellowstone, which is the second-largest supervolcano in the world and which last erupted 630,000 years ago. Similar effectiveness among options for managing low-risk prostate can A comprehensive appraisal of the management and treatment options for low-risk prostate cancer found that the rates of survival and tumor recurrence are similar among the most common treatment approaches, although costs can vary considerably.
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