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. Cancer progression is commonly thought of as a process involving the growth of a primary tumor followed by metastasis, in which cancer cells leave the primary tumor and spread to distant organs. A new study by researchers at Memorial Sloan-Kettering Cancer Center shows that circulating tumor cells - cancer cells that break away from a primary tumor and disseminate to other areas of the body - can also return to and grow in their tumor of origin, a newly discovered process called "self-seeding." http://www.physorg.com/news180845255.html Medicine & Health Thu, 24 Dec 2009 12:00:14 EST news180845255 Famous for its antioxidant properties and role in tissue repair, vitamin C is touted as beneficial for illnesses ranging from the common cold to cancer and perhaps even for slowing the aging process. Now, a study published online on December 24th by Cell Press in the journal Cell Stem Cell uncovers an unexpected new role for this natural compound: facilitating the generation of embryonic-like stem cells from adult cells. http://www.physorg.com/news180845703.html Biology Thu, 24 Dec 2009 12:00:11 EST news180845703 Scientists have shown for the first time that insects, like mammals, use vision rather than touch to find footholds. They made the discovery thanks to high-speed video cameras - technology the BBC uses to capture its stunning wildlife footage - that they used to film desert locusts stepping along the rungs of a miniature ladder. http://www.physorg.com/news180791439.html Biology Thu, 24 Dec 2009 12:00:03 EST news180791439 Santa Claus is coming to your town -- and NORAD is tracking him as he drops off presents around the world. The North American Aerospace Defense Command, which monitors the North American airspace, on Thursday set up an official "Santa Tracker" on its website (www.noradsanta.org) in seven languages to find the current location and upcoming stops of Santa and his storied reindeer. http://www.physorg.com/news180877905.html Technology Thu, 24 Dec 2009 11:52:13 EST news180877905 Iran will unveil a new home-built satellite in February, a newspaper reported Thursday, amid Western concerns that Tehran is using its nuclear and space industries to develop atomic and ballistic weapons. http://www.physorg.com/news180853256.html Space & Earth Thu, 24 Dec 2009 05:01:34 EST news180853256 New Yorkers are used to fighting each other for space, but there may be a new contender in town according to a Rockefeller study that appears to have uncovered a new species of cockroach. http://www.physorg.com/news180844499.html Biology Thu, 24 Dec 2009 02:35:24 EST news180844499 University of Queensland researchers are testing new materials to withstand the extreme heat experienced by hypersonic vehicles in flight so they can fly for substantially longer. http://www.physorg.com/news180844091.html Physics Thu, 24 Dec 2009 02:28:41 EST news180844091 Genomic switches can predispose an individual to one set of autoimmune disorders but protect the same person against another set of them, scientists at Stanford University School of Medicine have found. http://www.physorg.com/news180787044.html Medicine & Health Wed, 23 Dec 2009 20:00:03 EST news180787044 (PhysOrg.com) -- It is not only people who feel the effects of short winter days - new research by the University of Edinburgh and the University of Warwick has shed light on how plants calculate their own winter solstice. http://www.physorg.com/news180810791.html Biology Wed, 23 Dec 2009 17:20:02 EST news180810791 Web search and advertising giant Google said Wednesday that the US Federal Trade Commission (FTC) is seeking more information about its proposed purchase of mobile advertising company AdMob. http://www.physorg.com/news180808819.html Technology Wed, 23 Dec 2009 16:40:55 EST news180808819 (PhysOrg.com) -- Astronomers using the W. M. Keck Observatory have peered far into a young planetary system, giving an unprecedented view of dust and gas that might eventually form planets similar to Jupiter, Venus, or even Earth. The researchers used the Keck Interferometer, which combines the light-gathering power of both 10-meter Keck telescopes to act as an 85-meter telescopemuch larger than any existing or planned telescope. http://www.physorg.com/news180806114.html Space & Earth Wed, 23 Dec 2009 16:30:02 EST news180806114 (PhysOrg.com) -- If you have dry skin, wet it, if wet skin, dry it. This has been a general rule of dermatology for centuries, but scientists are working to develop more precise treatments for the dozen-plus inflammatory skin diseases that afflict people. New research details the fine genetic and immunological differences between two of the most common skin diseases, psoriasis and atopic eczema, presenting a new way to classify the disorders as well as possible novel therapeutics. http://www.physorg.com/news180805795.html Medicine & Health Wed, 23 Dec 2009 15:50:52 EST news180805795 Glaciers along the Gulf of Alaska are enriching stream and near shore marine ecosystems from a surprising source - ancient carbon contained in glacial runoff, researchers from four universities and the U.S. Forest Service report in the December 24, 2009, issue of the journal Nature. http://www.physorg.com/news180786023.html Space & Earth Wed, 23 Dec 2009 14:40:01 EST news180786023 A team of Columbia scientists have discovered two genes that, when simultaneously activated, are responsible for the most aggressive forms of human brain cancer. http://www.physorg.com/news180785735.html Medicine & Health Wed, 23 Dec 2009 14:20:01 EST news180785735 The ability to make, test, and map the atomic structure of new anti-cancer agents has enabled a team of Dana-Farber Cancer Institute scientists to discover a compound capable of halting a common type of drug-resistant lung cancer. http://www.physorg.com/news180784894.html Medicine & Health Wed, 23 Dec 2009 13:40:02 EST news180784894 The first detailed search of breast cancer genomes to uncover genomic rearrangements is published today. The team characterised the ways in which the human genome is broken and put back together in 24 cases of breast cancer. http://www.physorg.com/news180785193.html Medicine & Health Wed, 23 Dec 2009 13:30:02 EST news180785193 The faint tug of the sun and moon on the San Andreas Fault stimulates tremors deep underground, suggesting that the rock 15 miles below is lubricated with highly pressurized water that allows the rock to slip with little effort, according to a new study by University of California, Berkeley, seismologists. http://www.physorg.com/news180785622.html Space & Earth Wed, 23 Dec 2009 13:30:01 EST news180785622 A group of scientists has succeeded in creating the first transistor made from a single molecule. The team, which includes researchers from Yale University and the Gwangju Institute of Science and Technology in South Korea, published their findings in the December 24 issue of the journal Nature. http://www.physorg.com/news180785053.html Nanotechnology Wed, 23 Dec 2009 13:20:08 EST news180785053 New study finds that the average ecosystem will need to shift about a quarter mile per year to keep pace with global climate change. http://www.physorg.com/news180783744.html Space & Earth Wed, 23 Dec 2009 13:00:15 EST news180783744 (PhysOrg.com) -- Honey bees undergo a sudden transition from speeding aircraft to hovering helicopter as they perform the delicate art of landing on a flower. http://www.physorg.com/news180728592.html Biology Wed, 23 Dec 2009 13:00:02 EST news180728592 Stars in globular clusters are generally extremely old, with ages of 12-13 billion years. However, a small fraction of them appear to be significantly younger than the average population and, because they seem to have been left behind by the stars that followed the normal path of stellar evolution and became red giants, have been dubbed blue stragglers. http://www.physorg.com/news180783454.html Space & Earth Wed, 23 Dec 2009 13:00:01 EST news180783454 Scientists at UC Santa Barbara have made a major discovery in how the brain encodes memories. The finding, published in the December 24 issue of the journal Neuron, could eventually lead to the development of new drugs to aid memory. http://www.physorg.com/news180780161.html Medicine & Health Wed, 23 Dec 2009 12:00:08 EST news180780161 University of Iowa researchers have shown that a protein channel helps nerve sensors in blood vessels keep blood pressure in check. Without the protein channel, known as ASIC2, the sensors are unable to send the brain the signals it needs to properly control blood pressure. http://www.physorg.com/news180779688.html Medicine & Health Wed, 23 Dec 2009 12:00:03 EST news180779688 New cinema blockbuster, Avatar, leapt to the top of box office charts as soon as it came out - a stunning 3D realisation of an alien world. Our fascination with themes of escape to other fantastic places and the thrill of immersion in virtual environments also attracts millions to assume new identities in online virtual worlds. http://www.physorg.com/news180789918.html Technology Wed, 23 Dec 2009 11:25:43 EST news180789918 It's been used to dye the Chicago River green on St. Patrick's Day. It's been used to find latent blood stains at crime scenes. And now researchers at Northwestern University have used it to examine the thinnest material in the world. http://www.physorg.com/news180789864.html Nanotechnology Wed, 23 Dec 2009 11:24:48 EST news180789864 (AP) -- BlackBerry e-mail service in North America was restored for some users Wednesday morning following its second outage in less than a week. http://www.physorg.com/news180786104.html Technology Wed, 23 Dec 2009 10:21:58 EST news180786104 How do one-celled parasites move from the salivary gland of a mosquito through a person's skin into red blood cells? What molecular mechanisms form the basis for this very important movement of the protozoa? A team of researchers headed by Dr. Friedrich Frischknecht, head of a research group at the Department of Infectious Diseases at Heidelberg University Hospital, observed the initial stage of the malaria parasite that is transmitted by mosquitoes with new microscope techniques. http://www.physorg.com/news180784195.html Medicine & Health Wed, 23 Dec 2009 09:50:25 EST news180784195 Panasonic Corp., which recently made a successful takeover bid for Sanyo Electric Co., plans to market a lithium-ion storage cell for home use around fiscal 2011. http://www.physorg.com/news180778009.html Technology Wed, 23 Dec 2009 08:07:15 EST news180778009 Britain banned several drugs known as "legal highs" Wednesday amid mounting public concern about their health risks. http://www.physorg.com/news180777226.html Medicine & Health Wed, 23 Dec 2009 07:54:23 EST news180777226 Female ducks have evolved an intriguing way to avoid becoming impregnated by undesirable but aggressive males endowed with large corkscrew-shaped penises: vaginas with clockwise spirals that thwart oppositely spiraled males. http://www.physorg.com/news180769252.html Biology Wed, 23 Dec 2009 05:41:17 EST news180769252