http://en.redtram.com/ sciencedaily.com Copyright (c) 2009 RedTram. All rights reserved. webmaster@redtram.com (RedTram) en Sat, 28 Nov 2009 05:34:15 GMT 300 100 50 http://en.redtram.com/ http://img.en.redtram.com/rsslogo.gif 3283 | Bell's palsy: Study calls for rethink of cause and treatment http://en.redtram.com/go/233031762/top100/ 233031762 Drugs widely prescribed to treat facial paralysis in Bell's palsy are ineffective and are based on false notions of the cause of the condition, according to researchers. They say research must now focus on discovering other potential causes and treatments. Sat, 28 Nov 2009 05:16:23 GMT http://en.redtram.com/go/233031762/top100/ 3283 | Advertising message gone viral? Thank altruistic, yet image-conscious internet 'e-mavens' http://en.redtram.com/go/233031698/top100/ 233031698 Why do some online ad campaigns go viral while other online marketing messages gather "cyber-dust" on the information superhighway? The key may lie in the motivation of Internet users to email that content to their social network, say researchers. Sat, 28 Nov 2009 05:15:55 GMT http://en.redtram.com/go/233031698/top100/ 3329 | Ecological speciation by sexual selection on good genes http://en.redtram.com/go/233028616/top100/ 233028616 Darwin suggested that the action of natural selection can produce new species, but 150 years after the publication of "On the Origin of Species" debate continues on the mechanisms of speciation. New research finds sexual selection to greatly enlarge the Sat, 28 Nov 2009 04:50:48 GMT http://en.redtram.com/go/233028616/top100/ 3329 | Wide heads give hammerhead sharks exceptional stereo view http://en.redtram.com/go/233028591/top100/ 233028591 Why hammerhead sharks have their distinctively shaped heads has puzzled scientists for generations, but now researchers have discovered that hammerheads' wide heads give them an impressive stereo view. Sat, 28 Nov 2009 04:50:36 GMT http://en.redtram.com/go/233028591/top100/ 3329 | Knockouts in human cells point to pathogenic targets http://en.redtram.com/go/233028561/top100/ 233028561 Researchers have developed a new approach for genetics in human cells and used this technique to identify specific genes and proteins required for pathogens. With the ability to generate knockout cells for most human genes, the authors were able to Sat, 28 Nov 2009 04:50:19 GMT http://en.redtram.com/go/233028561/top100/ 3329 | Tough yet stiff deer antler is materials scientist's dream http://en.redtram.com/go/233028516/top100/ 233028516 It is almost impossible to make materials that are tough yet stiff: stiff materials tend to break easily and cannot absorb impacts. But not so dry deer antlers. Surviving impacts that are six times greater than crashes that shatter wet Sat, 28 Nov 2009 04:49:52 GMT http://en.redtram.com/go/233028516/top100/ 3329 | Ecologists sound out new solution for monitoring cryptic species http://en.redtram.com/go/233028415/top100/ 233028415 Ecologists have worked out a way of using recordings of birdsong to accurately measure the size of bird populations. This is the first time sound recordings from a microphone array have been translated into accurate estimates of bird species' populations. Sat, 28 Nov 2009 04:49:01 GMT http://en.redtram.com/go/233028415/top100/ 3328 | Mass extinction: Why did half of N. America's large mammals disappear 40,000 to 10,000 years ago? http://en.redtram.com/go/232996240/top100/ 232996240 Years of scientific debate over the extinction of ancient species in North America have yielded many theories. However, new findings reveal that a mass extinction occurred in a geological instant. Sat, 28 Nov 2009 01:10:44 GMT http://en.redtram.com/go/232996240/top100/ 3328 | Academic questions 'green' initiatives on cutting carbon footprint http://en.redtram.com/go/232996184/top100/ 232996184 Global carbon markets may well have been hailed as the savior of the planet by reducing greenhouse gas emissions, but in many ways they are doing more harm than good, according to new evidence. Sat, 28 Nov 2009 01:10:32 GMT http://en.redtram.com/go/232996184/top100/ 3314 | Building real security with virtual worlds http://en.redtram.com/go/232940230/top100/ 232940230 Advances in computerized modeling and prediction of group behavior, together with improvements in video game graphics, are making possible virtual worlds in which defense analysts can explore and predict results of possible military and policy actions, say computer science researchers. Fri, 27 Nov 2009 17:59:30 GMT http://en.redtram.com/go/232940230/top100/ 3314 | Nanowires key to future transistors, electronics http://en.redtram.com/go/232940211/top100/ 232940211 A new generation of ultrasmall transistors and more powerful computer chips using tiny structures called semiconducting nanowires are closer to reality after a key discovery by researchers. Fri, 27 Nov 2009 17:59:26 GMT http://en.redtram.com/go/232940211/top100/ 3301 | First 'genetic map' of Han Chinese may aid search for disease susceptibility genes http://en.redtram.com/go/232891169/top100/ 232891169 The first genetic historical map of the Han Chinese, the largest ethnic population in the world, as they migrated from south to north over evolutionary time. Fri, 27 Nov 2009 12:23:07 GMT http://en.redtram.com/go/232891169/top100/ 1874 | First-ever blueprint of 'minimal cell' is more complex than expected http://en.redtram.com/go/232883870/top100/ 232883870 What are the bare essentials of life, the indispensable ingredients required to produce a cell that can survive on its own? Can we describe the molecular anatomy of a cell, and understand how an entire organism functions as a system? Fri, 27 Nov 2009 11:42:05 GMT http://en.redtram.com/go/232883870/top100/ 1874 | New cause for Alzheimer's disease? http://en.redtram.com/go/232883849/top100/ 232883849 Scientists have discovered that a precursor to nerve growth factor (pro-NGF) may play a pathogenic role in Alzheimer's disease. Fri, 27 Nov 2009 11:41:56 GMT http://en.redtram.com/go/232883849/top100/ 1874 | Exposure to both traffic, indoor pollutants puts some kids at higher risk for asthma later http://en.redtram.com/go/232883814/top100/ 232883814 New research presents strong evidence that the "synergistic" effect of early-life exposure to both outdoor traffic-related pollution and indoor endotoxin causes more harm to developing lungs than one or the other exposure alone. Fri, 27 Nov 2009 11:41:46 GMT http://en.redtram.com/go/232883814/top100/ 1874 | Stem cells heal lungs of newborn animals: May lead to new treatments for lungs of premature babies http://en.redtram.com/go/232883799/top100/ 232883799 Scientists have demonstrated that stem cells protect and repair the lungs of newborn rats. The study finds that rats treated with stem cells ran twice as far, and had better survival rates. Currently, there is no treatment for the lungs Fri, 27 Nov 2009 11:41:39 GMT http://en.redtram.com/go/232883799/top100/ 1874 | New device enables early detection of cancerous skin tumors http://en.redtram.com/go/232883785/top100/ 232883785 Researchers are developing a new device that detects cancerous skin tumors, including melanomas that aren't visible to the naked eye. The OSPI instrument (Optical Spectro-Polarimetric Imaging) revealed new textures of lesions that have never been seen before. Dermatologists and plastic Fri, 27 Nov 2009 11:41:34 GMT http://en.redtram.com/go/232883785/top100/ 1874 | Marker of oxidative stress predicts heart disease outcomes http://en.redtram.com/go/232883756/top100/ 232883756 Researchers have identified a substance in the blood that may be useful in predicting an individual's risk for heart disease. The substance is cystine, an oxidized form of the amino acid cysteine and an indirect measure of oxidative stress. In Fri, 27 Nov 2009 11:41:22 GMT http://en.redtram.com/go/232883756/top100/ 1874 | Discovery leads to effective treatment of painful skin condition http://en.redtram.com/go/232883746/top100/ 232883746 Researchers have discovered a remarkable treatment for a rare, yet debilitating, skin condition. Fri, 27 Nov 2009 11:41:15 GMT http://en.redtram.com/go/232883746/top100/