In the News
Net Neutrality: Undifferentiated Networks Would Require Significant Ex A new study by researchers at Rensselaer Polytechnic Institute, AT&T Labs and the University of Nevada, Reno, suggests that an Internet where all traffic is treated identically would require significantly more capacity than one in which differentiated services are offered. Male-killing Bacteria Makes Female Butterflies More Promiscuous A study at UCL (University College London) finds that a high-prevalence of male-killing bacteria active in many species of insect including the butterfly, actually increases female promiscuity and male fatigue. NIEHS Response to Hurricane Katrina "This site is targeted to provide environmental health information to frontline public health and safety workers deployed to impacted communities."It features documents, Geographic Information System (GIS) maps, and links to information about chemical and biological pollutants, chemical exposure in humans, worker safety during flood cleanup, and other environmental health and emergency response topics related to Hurricane Katrina. From the National Institute of Environmental Health Sciences (NIEHS), U.S. National Institutes of Health (NIH). Phospholipids In The Cell Membrane Help Regulate Ion Channels Though the cell membrane is a protective barrier, it also plays a role in letting some foreign material in -- via ion channels that dot the cell's surface. Now new research from the Nobel Prize-winning laboratory that first solved the atomic structure of several such channels shows that their function is controlled in part by a complex interaction between a channel's voltage sensor and the cell membrane immediately adjacent to it. [Ironic] An Italian pensioner committed suicide after his wife fell in Recalling the end of Romeo and Juliet, the 70-year-old man, Ettore, who had sat by his wife's bedside for four months after she slipped into a coma following a heart attack, finally gave up hope and gassed himself in the garage of his family home.Less than a day later, his wife, Rossana, woke up in her hospital bed in Padua and immediately asked for him. Science Lesson Plans Sciencebase is proud to provide science educators and students with (K5) Elementary School Science Lesson Plans from Columbia Education Center, Portland, Oregon. These plans provide educators with the necessary background to teach science effectively as well as offering students additional background information and insights for their sciences courses. Scroll down for pinhole cameras, mapping constellations, limpet identification, and much more... Effects Of Nutrition On Learning The speed with which adult zebra finches learned a new association task inversely correlates not with the degree of nutritional deprivation experienced early in life, but with the level of compensatory growth, according to a study published in PLoS Biology. Many Teens Lose Migraines As They Reach Adulthood There's good news for kids and teens with migraines. Nearly 40percent of kids and teens with migraine no longer had headaches 10 years later, and another 20 percent developed less severe headaches, according to a new study published in the Oct. 24, 2006, issue of Neurology, the scientific journal of the American Academy of Neurology. Decrease Cancer-suppressing Protein Activity, Increase Life Span Too much production of the p53 protein shortens life span. Not enough can cause cancer. New research, headed up by Brown University biologist Stephen Helfand, shows that the health benefits of this protective protein can be harnessed - and longer life can be achieved - when its activity is decreased in the neurons of fruit flies. These findings, published in Current Biology, offer the first evidence that p53 can play a positive role in aging. How Muscle Weakness Caused By Myasthenia Gravis Can Be Stopped, Accord Severe muscle weakness caused by myasthenia gravis -- a highly debilitating autoimmune disorder -- can be prevented or reversed by blocking a key step in the immune response that brings on the disease, researchers have found. Myasthenia gravis, which affects about 120,000 Americans, is caused when the immune system produces antibodies that attack and damage acetylcholine receptors, which are mechanisms that play a key role in transmitting the electrical impulses that cause muscles to move and contract.
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