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. A new study sheds light on a little understood biological process called quiescence, which enables blood-forming stem cells to exist in a dormant or inactive state in which they are not growing or dividing. According to the study's findings, researchers identified the genetic pathway used to maintain a cell's quiescence, a state that allows bone marrow cells to escape the lethal effects of standard cancer treatments. http://www.physorg.com/news150726406.html Biology Fri, 09 Jan 2009 12:26:46 EST news150726406 (PhysOrg.com) -- Listening to the early universe just got harder. A team led by Alan Kogut of NASA's Goddard Space Flight Center in Greenbelt, Md., today announced the discovery of cosmic radio noise that booms six times louder than expected. http://www.physorg.com/news150569765.html Space & Earth Wed, 07 Jan 2009 16:56:05 EST news150569765 An innovative approach for implanting a new aortic heart valve without open-heart surgery is being offered to patients at NewYork-Presbyterian Hospital/Columbia University Medical Center. Known as the PARTNER (Placement of AoRTic traNscathetER valves) trial, this Phase 3 multicenter study is being led by national co-principal investigators Dr. Martin Leon and Dr. Craig Smith and is focused on the treatment of patients who are at high risk or not suitable for open-heart valve replacement surgery. http://www.physorg.com/news150561085.html Medicine & Health Wed, 07 Jan 2009 14:31:25 EST news150561085 (PhysOrg.com) -- NASA's Fermi Gamma-ray Space Telescope has discovered 12 new gamma-ray-only pulsars and has detected gamma-ray pulses from 18 others. The finds are transforming our understanding of how these stellar cinders work. http://www.physorg.com/news150483177.html Space & Earth Tue, 06 Jan 2009 16:52:57 EST news150483177 (PhysOrg.com) -- An ongoing X-ray survey undertaken by NASA's Swift spacecraft is revealing differences between nearby active galaxies and those located about halfway across the universe. Understanding these differences will help clarify the relationship between a galaxy and its central black hole. http://www.physorg.com/news150482218.html Space & Earth Tue, 06 Jan 2009 16:36:58 EST news150482218 Five-year-old Kate Levschan and her 18-month-old brother, Jacob, have never sat on Santa's lap. Their mother, Marti Levschan, wants to keep it that way. http://www.physorg.com/news150398444.html Medicine & Health Mon, 05 Jan 2009 17:20:44 EST news150398444 Just seeing someone smoke can trigger smokers to abandon their nascent efforts to kick the habit, according to new research conducted at Duke University Medical Center. http://www.physorg.com/news150397760.html Medicine & Health Mon, 05 Jan 2009 17:09:20 EST news150397760 In a six-month comparison of low-carb diets, one that encourages eating carbohydrates with the lowest-possible rating on the glycemic index leads to greater improvement in blood sugar control, according to Duke University Medical Center researchers. http://www.physorg.com/news150397364.html Medicine & Health Mon, 05 Jan 2009 17:02:44 EST news150397364 (PhysOrg.com) -- The center of the Milky Way presents astronomers with a paradox: it holds young stars, but no one is sure how those stars got there. The galactic center is wracked with powerful gravitational tides stirred by a 4 million solar-mass black hole. Those tides should rip apart molecular clouds that act as stellar nurseries, preventing stars from forming in place. Yet the alternative - stars falling inward after forming elsewhere - should be a rare occurrence. http://www.physorg.com/news150383551.html Space & Earth Mon, 05 Jan 2009 13:12:31 EST news150383551 The planet Jupiter gained weight in a hurry during its infancy. It had to, since the material from which it formed probably disappeared in just a few million years, according to a new study of planet formation around young stars. http://www.physorg.com/news150383252.html Space & Earth Mon, 05 Jan 2009 13:07:32 EST news150383252 A large number of North Atlantic right whales have been seen in the Gulf of Maine in recent days, leading right whale researchers at NOAA's Northeast Fisheries Science Center (NEFSC) to believe they have identified a wintering ground and potentially a breeding ground for this endangered species. http://www.physorg.com/news150115302.html Biology Fri, 02 Jan 2009 10:41:42 EST news150115302 New computer visualization technology developed by the Harvard Initiative in Innovative Computing has helped astrophysicists understand that gravity plays a larger role than previously thought in deep space's vast, star-forming molecular clouds. http://www.physorg.com/news149951713.html Space & Earth Wed, 31 Dec 2008 13:15:13 EST news149951713 UC Davis Cancer Center researchers report today the discovery of a molecule that targets glioblastoma, a highly deadly form of cancer. The finding, which is published in the January 2009 issue of the European Journal of Nuclear Medicine and Molecular Imaging, provides hope for effectively treating an incurable cancer. http://www.physorg.com/news149769509.html Medicine & Health Mon, 29 Dec 2008 10:38:29 EST news149769509 (PhysOrg.com) -- Given the sheer number of potential applications for carbon nanotubes, experts in the field of nanotechnology are developing effective ways to mass produce intricate nanoscale structures for electronics, sensing, energy and biomedical applications in a timely, cost-effective manner with a high level of accuracy. http://www.physorg.com/news149258907.html Nanotechnology Tue, 23 Dec 2008 12:48:27 EST news149258907 When you first notice a door handle, your brain has already been hard at work. Your visual system first sees the handle, then it sends information to various parts of the brain, which go on to decipher out the details, such as color and the direction the handle is pointing. As the information about an object is sent further along the various brain pathways, more and more details are noticed -- in that way, a simple door handle turns into a silver-plated-antique-style-door-handle-facing-right. Information about the handle also reaches the part of your brain responsible for planning movements (known as the pre-motor area), and it comes up with a set of motions, allowing you to turn the handle with your right hand and open the door. http://www.physorg.com/news148828835.html Medicine & Health Thu, 18 Dec 2008 13:20:35 EST news148828835 Research out of the Ireland Cancer Center of University Hospitals Case Medical Center has found that the vast majority of triple negative breast cancers express the MUC-1 target. This first-of-its-kind finding, presented today at the San Antonio Breast Cancer Symposium, has paved the way for an upcoming vaccine trial for patients with early stage triple negative breast cancer that could potentially prevent recurrence of this aggressive type of breast cancer. http://www.physorg.com/news148315876.html Medicine & Health Fri, 12 Dec 2008 14:51:16 EST news148315876 Models of the universe that place us near the center of a large, sparse region don't jibe with astronomical observations. Cosmologists at the University of British Columbia reached the conclusion through a new analysis that reaffirms the presence of a perplexing dark energy. http://www.physorg.com/news148152748.html Physics Wed, 10 Dec 2008 17:32:28 EST news148152748 Preliminary results of a pivotal Phase 2 clinical trial of pralatrexate (PDX), a drug that partially works by mimicking folic acid, showed a complete or partial response in 27 percent of patients with recurrent or resistant peripheral T-cell lymphoma (PTCL). http://www.physorg.com/news148062429.html Medicine & Health Tue, 09 Dec 2008 16:27:09 EST news148062429 Older patients with acute myloid leukemia (AML) who were once told that nothing could be done for them are finding new hope - and life - through a clinical trial at The Ohio State University Comprehensive Cancer Center - James Cancer Hospital and Solove Research Institute. http://www.physorg.com/news147967841.html Medicine & Health Mon, 08 Dec 2008 14:10:41 EST news147967841 Age alone should not determine whether an older patient with acute myeloid leukemia or myelodysplastic syndrome receives a blood stem cell transplant from a matched donor, researchers of the Center for International Blood and Marrow Transplant Research reported today at the 50th annual meeting of the American Society of Hematology. http://www.physorg.com/news147955032.html Medicine & Health Mon, 08 Dec 2008 10:37:12 EST news147955032 Researchers at Ohio State devised a new dosing schedule for the drug to increase its anti-tumor activity. http://www.physorg.com/news147927835.html Medicine & Health Mon, 08 Dec 2008 03:03:55 EST news147927835 NASA's Swift Gamma-ray Explorer satellite rocketed into space in 2004 on a mission to study some of the highest-energy events in the universe. The spacecraft has detected more than 380 gamma-ray bursts, fleeting flares that likely signal the birth of a black hole in the distant universe. In that time, Swift also has observed 80 exploding stars and studied six comets. http://www.physorg.com/news147542805.html Space & Earth Wed, 03 Dec 2008 16:06:45 EST news147542805 A team of cancer researchers from several Boston academic medical centers has discovered a potential treatment for a group of tumors that have resisted previous targeted therapy approaches. http://www.physorg.com/news147272893.html Medicine & Health Sun, 30 Nov 2008 13:08:13 EST news147272893 A new study led by researchers at the Joslin Diabetes Center and Harvard Medical School has found that a common genetic variant associated with an increased risk of coronary artery disease (CAD) in the general population is also linked to an even higher risk for people with diabetes, particularly those with poor glucose control. http://www.physorg.com/news146848594.html Medicine & Health Tue, 25 Nov 2008 15:16:34 EST news146848594 Two new compounds created by a University of Central Florida professor show early promise for destroying breast cancer tumors. http://www.physorg.com/news146296883.html Medicine & Health Wed, 19 Nov 2008 06:01:23 EST news146296883 A study is under way at Rush University Medical Center using a small, soft-patch device made of a Gore-tex-type material - often used to make durable outerwear - to close a common hole found in the heart called a patent foramen ovale (PFO) in order to prevent recurrent strokes and transient ischemic attacks (TIAs) in adults. http://www.physorg.com/news146232431.html Medicine & Health Tue, 18 Nov 2008 12:07:11 EST news146232431 Walter J. Lukiw, PhD, Associate Professor of Neuroscience and Ophthalmology at LSU Health Sciences Center New Orleans, is the lead author of a paper identifying, for the first time, a specific function of a fragment of ribonucleic acid (RNA), once thought to be no more than a byproduct, in regulating inflammation and the development of Alzheimer's disease. http://www.physorg.com/news145861392.html Medicine & Health Fri, 14 Nov 2008 05:03:12 EST news145861392 The combination of traditional chemotherapy agents with targeted therapies called monoclonal antibodies showed no safety concerns and improved survival in patients with advanced non-small cell lung cancer according to a study presented at the 2008 Chicago Multidisciplinary Symposium in Thoracic Oncology. http://www.physorg.com/news145800276.html Medicine & Health Thu, 13 Nov 2008 12:04:36 EST news145800276 Four in five Americans support the idea of a nationwide study to investigate the interactions of genes, environment and lifestyle, and three in five say they would be willing to take part in such a study, according to a survey released today. The research was conducted by the Genetics and Public Policy Center at Johns Hopkins University with funding from the National Human Genome Research Institute (NHGRI) of the National Institutes of Health (NIH). http://www.physorg.com/news145720943.html Medicine & Health Wed, 12 Nov 2008 14:02:23 EST news145720943 For mini-strokes, or transient ischemic attacks (TIAs), both overdiagnosis and underdiagnosis can be perilous. Overdiagnosis neglects the real underlying illness. Underdiagnosis leaves a patient at risk of a full-fledged stroke. Both expose patients to erroneous therapies with potential side effects. http://www.physorg.com/news145544418.html Medicine & Health Mon, 10 Nov 2008 13:00:18 EST news145544418