http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (AP) -- Facebook has created a dual-class stock structure designed to give founder Mark Zuckerberg and other existing shareholders control over the company. http://www.physorg.com/news178312283.html Technology Tue, 24 Nov 2009 19:12:13 EST news178312283 (PhysOrg.com) -- Induced pluripotent stem (iPS) cells -- adult cells reprogrammed to look and function like versatile embryonic stem cells -- are of growing interest in medicine. They may provide a way to create different kinds of patient-matched stem cells as treatments for disease, while sidestepping many of the ethical questions surrounding stem cells created from embryos. However, the production of iPS cells is often imprecise, yielding many incompletely reprogrammed cells. Now, researchers at Children's Hospital Boston have developed a technique to help distinguish these cells from the desired pure stem cells. http://www.physorg.com/news178310446.html Biology Tue, 24 Nov 2009 18:41:07 EST news178310446 (PhysOrg.com) -- Researchers at the University of Cincinnati have documented that the brain hormone serotonin is made in human breast cancer cells and functions abnormally, contributing to malignant growth. http://www.physorg.com/news178308579.html Medicine & Health Tue, 24 Nov 2009 18:20:02 EST news178308579 (PhysOrg.com) -- Political affinity could influence how some people view the skin tone of biracial political candidates, according to a new study from the University of Chicago Booth School of Business, New York University and Tilburg University in The Netherlands. http://www.physorg.com/news178307486.html Other Sciences Tue, 24 Nov 2009 17:51:55 EST news178307486 (PhysOrg.com) -- Water expands when it freezes. Anyone who has ever left a can of soda or bottle of water in the freezer too long has witnessed this first hand. So how do plants and animals survive severe temperatures? http://www.physorg.com/news178307122.html Biology Tue, 24 Nov 2009 17:45:47 EST news178307122 This year, many of college football's biggest rivalry games take place over Thanksgiving weekend. A win earns bragging rights for the year. Visiting teams are often thought to be at a considerable disadvantage, especially in the disruptive environment of a rival's home stadium. In terms of points, however, that disadvantage is probably less than they think. Recent research claims that commonly accepted figures overestimate the home field advantage in major college football. http://www.physorg.com/news178306815.html Other Sciences Tue, 24 Nov 2009 17:40:53 EST news178306815 Novel nanomaterials developed at Rensselaer were sent into orbit on Nov. 16 aboard Space Shuttle Atlantis. http://www.physorg.com/news178304620.html Nanotechnology Tue, 24 Nov 2009 17:04:10 EST news178304620 (PhysOrg.com) -- In the first video showing the auroras above the northern latitudes of Saturn, Cassini has spotted the tallest known "northern lights" in the solar system, flickering in shape and brightness high above the ringed planet. http://www.physorg.com/news178303936.html Space & Earth Tue, 24 Nov 2009 16:53:17 EST news178303936 (PhysOrg.com) -- Physicists from the Japanese-led multi-national T2K neutrino collaboration announced today that over the weekend they detected the first events generated by their newly built neutrino beam at the J-PARC accelerator laboratory in Tokai, Japan. http://www.physorg.com/news178300806.html Physics Tue, 24 Nov 2009 16:01:48 EST news178300806 (PhysOrg.com) -- Computer chips that transmit data with light instead of electricity consume much less power than conventional chips, but so far, they've remained laboratory curiosities. Professors Vladimir Stojanović and Rajeev Ram and their colleagues in MIT's Research Laboratory of Electronics and Microsystems Technology Laboratory hope to change that, by designing optical chips that can be built using ordinary chip-manufacturing processes. http://www.physorg.com/news178298113.html Technology Tue, 24 Nov 2009 15:15:49 EST news178298113 The Dead Sea may soon shrink to a lifeless pond as Middle East political strife blocks vital measures needed to halt the decay of the world's lowest and saltiest body of water, experts say. http://www.physorg.com/news178296235.html Space & Earth Tue, 24 Nov 2009 14:47:50 EST news178296235 New findings from an international team of researchers probing the nerve-insulating myelin sheath were bolstered by the work of Boston College biologists, who used x-rays to uncover how mutations affect the structure of myelin, a focal point of research in multiple sclerosis and other neurological disorders. http://www.physorg.com/news178295855.html Medicine & Health Tue, 24 Nov 2009 14:37:57 EST news178295855 (PhysOrg.com) -- The first large black holes in the universe likely formed and grew deep inside gigantic, starlike cocoons that smothered their powerful x-ray radiation and prevented surrounding gases from being blown away, says a new study led by the University of Colorado at Boulder. http://www.physorg.com/news178293451.html Space & Earth Tue, 24 Nov 2009 13:58:28 EST news178293451 Scientists have crystallised a protein that may help gut bacteria bind to the gastrointestinal tract. The protein could be used by probiotic producers to identify strains that are likely to be of real benefit to people. http://www.physorg.com/news178285643.html Chemistry Tue, 24 Nov 2009 12:00:01 EST news178285643 Stents that keep weakened and flabby arteries from collapsing have been true life-savers. But after six months, those stents are no longer needed -- once the arteries are strengthened, they become unnecessary. Previously, doctors had no choice but to leave them in place. http://www.physorg.com/news178284711.html Biology Tue, 24 Nov 2009 11:48:28 EST news178284711 (PhysOrg.com) -- New research on bacterial communities throughout six large Arctic river ecosystems reveals predictable temporal patterns, suggesting that scientists could use these communities as markers for monitoring climate change in the polar regions. The study, published this week in the Proceedings of the National Academy of Sciences Early Edition, shows that bacterial communities in the six rivers shifted synchronously over time, correlating with seasonal shifts in hydrology and biogeochemistry. http://www.physorg.com/news178280399.html Space & Earth Tue, 24 Nov 2009 11:20:01 EST news178280399 Even before they start school, many young girls worry that they are fat. But a new study suggests watching a movie starring a stereotypically thin and beautiful princess may not increase children's anxieties. http://www.physorg.com/news178279727.html Medicine & Health Tue, 24 Nov 2009 10:20:03 EST news178279727 (PhysOrg.com) -- What constitutes fish food is a matter of debate. A high-profile study a few years ago suggested that fish get almost 50 percent of their carbon from trees and leaves, evidence for a very close link between the terrestrial and aquatic ecosystems. http://www.physorg.com/news178280069.html Biology Tue, 24 Nov 2009 10:15:44 EST news178280069 (PhysOrg.com) -- Clinical trials comparing a spray-on skin product with skin grafts will start in the US in December. The trials, which are partly funded by a US army grant of $1.4 million, will last about a year and will involve 106 patients with second degree burns. The product, ReCell, has been available for some time in Europe, Australia, Malaysia and elsewhere, and was approved for use in China earlier this year. http://www.physorg.com/news178271249.html Medicine & Health Tue, 24 Nov 2009 09:50:02 EST news178271249 (PhysOrg.com) -- That California and Texas still lead the United States in generating renewable energy probably is no surprise. But, NREL's 2009 State of the States report shows that several smaller states from Maine to Louisiana to Utah are closing the clean energy gap, confirming that every state has renewable energy potential. http://www.physorg.com/news178272077.html Technology Tue, 24 Nov 2009 08:50:01 EST news178272077 A new study that reconstructed ocean temperatures from millions of years ago could provide new insight into how the Earth responds to climate change. http://www.physorg.com/news178272697.html Space & Earth Tue, 24 Nov 2009 08:12:24 EST news178272697 (PhysOrg.com) -- Scientists are learning that the dynamic regulation of genes -- as much as the genes themselves -- shapes the fate of organisms. Now the discovery of a new epigenetic mechanism regulating genes in the brain under stress is helping change the way scientists think about psychiatric disorders and could open new avenues to treatment. http://www.physorg.com/news178271825.html Medicine & Health Tue, 24 Nov 2009 07:57:44 EST news178271825 (PhysOrg.com) -- The web browser Opera 10.10 has been released as a stable version, and it has a number of new features to enhance the browsing experience, including "Unite", which is a group of applications for sharing music, photos and other files. http://www.physorg.com/news178270915.html Technology Tue, 24 Nov 2009 07:46:17 EST news178270915 An unusual number of severe allergic reactions to swine flu vaccinations have been recorded in Canada, where a batch of the vaccine from GlaxoSmithKline (GSK) has been recalled, the WHO said on Tuesday. http://www.physorg.com/news178269887.html Medicine & Health Tue, 24 Nov 2009 07:25:09 EST news178269887 Outrageous prices may not be the only thing causing anger at the petrol pumps. A new study, published in the open access journal BMC Physiology, has shown that rats exposed to fumes from leaded and unleaded gasoline become more aggressive. http://www.physorg.com/news178264764.html Medicine & Health Tue, 24 Nov 2009 06:02:11 EST news178264764 (PhysOrg.com) -- A new website will give everyone the chance to contribute to science by playing a 'cosmic fruit machine' and compare images of colliding galaxies with millions of simulated images of galactic pile-ups. http://www.physorg.com/news178264605.html Space & Earth Tue, 24 Nov 2009 05:57:19 EST news178264605 (PhysOrg.com) -- Comparing prices over the Internet has become a common practice for consumers. Now, just in time for Black Friday, a group of Missouri University of Science and Technology students is putting that ability to comparison-shop in the palm of your hand. http://www.physorg.com/news178227892.html Technology Mon, 23 Nov 2009 20:10:02 EST news178227892 (PhysOrg.com) -- Hepatitis C, a formidable virus that affects 130 million people worldwide, is nursing some pretty impressive bruises. By knocking out sections and subsections of one of its proteins, scientists reveal weak spots in the virus's armor and gain new momentum for developing drug targets for sufferers of the disease. http://www.physorg.com/news178227669.html Medicine & Health Mon, 23 Nov 2009 19:41:59 EST news178227669 German scientist Paul Ehrlich found what he coined the "magic bullet" in the early 20th century upon developing the world`s first effective treatment of syphilis. http://www.physorg.com/news178221774.html Medicine & Health Mon, 23 Nov 2009 18:50:03 EST news178221774 (PhysOrg.com) -- UCSF scientists have shown for the first time that the rigidity of a tissue can induce cancer. The research team identified an enzyme that is crucial for regulating tissue stiffness and demonstrated that the enzyme can turn abnormal but non-malignant breast tissue into tumors, according to a study published in Cell online. http://www.physorg.com/news178221935.html Medicine & Health Mon, 23 Nov 2009 18:40:01 EST news178221935