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. As early as one week after beginning treatment for brain tumors, a new imaging analysis method was able to predict which patients would live longer, researchers from the University of Michigan Comprehensive Cancer Center have found. http://www.physorg.com/news159371458.html Medicine & Health Sun, 19 Apr 2009 14:51:55 EST news159371458 New research on infrasound from volcanic eruptions shows an unexpected connection with jet engines. Researchers at Scripps Institution of Oceanography at UC San Diego speeded up the recorded sounds from two volcanoes and uncovered a noise very similar to typical jet engines. These new research findings provide scientists with a more useful probe of the inner workings of volcanic eruptions. Infrasound is sound that is lower in frequency than 20 cycles per second, below the limit of human hearing. http://www.physorg.com/news158419157.html Space & Earth Wed, 08 Apr 2009 14:19:43 EST news158419157 (PhysOrg.com) -- As highway traffic increases, you'd probably expect a traffic jam, where vehicles slow down due to the high density. While traffic jams are a common occurrence on our highways, high density traffic has completely different effects for ants traveling on trails. As a new study has found, ants don't have traffic jams. Rather, as ant traffic density increases, the traffic maintains the same average velocity as at low densities. http://www.physorg.com/news157627187.html Biology Mon, 30 Mar 2009 10:20:19 EST news157627187 Most chest pain is caused by fatty deposits that hinder blood flow through the main, spaghetti-thick arteries of the heart. http://www.physorg.com/news157385811.html Medicine & Health Fri, 27 Mar 2009 15:17:28 EST news157385811 Results of a Mayo Clinic study show that a simple, noninvasive finger sensor test is "highly predictive" of a major cardiac event, such as a heart attack or stroke, for people who are considered at low or moderate risk, according to researchers. http://www.physorg.com/news157294709.html Medicine & Health Thu, 26 Mar 2009 13:59:08 EST news157294709 Insects such as honeybees and bumble bees are predictable in the way they move among flowers, typically moving directly from one flower to an adjacent cluster of flowers in the same row of plants. The bees' flight paths have a direct affect on their ability to hunt for pollen and generate "gene flow", fertilization and seed production that results when pollen moves from one plant to another. The study of gene flow has experienced more attention in part due to the recent introduction of genetically modified organisms (GMOs) into the environment. http://www.physorg.com/news156795581.html Biology Fri, 20 Mar 2009 19:21:14 EST news156795581 (PhysOrg.com) -- Scientists at the Naval Research Laboratory recently reported the detection of toxins with unprecedented speed, sensitivity, and simplicity. The approach can sense as few as a few hundred molecules in a drop of blood in less than 10 minutes, with only four simple steps from sample to answer. http://www.physorg.com/news156179561.html Biology Fri, 13 Mar 2009 16:14:33 EST news156179561 (PhysOrg.com) -- Choosing to have aggressive brain surgery after suffering a severe stroke generally improves the patients' lives and allows them to live longer, according to research by neurologists at the University of Rochester Medical Center. http://www.physorg.com/news156101281.html Medicine & Health Thu, 12 Mar 2009 18:29:08 EST news156101281 Researchers have shown that they can tell where a person is "standing" within a virtual reality room on the basis of the pattern of activity in the brain alone. The findings, published online on March 12th in Current Biology, a Cell Press publication, offer compelling evidence that the hippocampus, a region of the brain critical to navigation, memory, and imagining future experiences, works in a structured and predictable way. That discovery is contrary to what many experts had previously suspected, according to the researchers. http://www.physorg.com/news156096557.html Medicine & Health Thu, 12 Mar 2009 17:09:49 EST news156096557 Giving clot-busting drugs to patients who wake up with stroke symptoms appears to be as safe as giving it to those in the recommended three-hour window, according to researchers at The University of Texas Medical School at Houston. http://www.physorg.com/news156094923.html Medicine & Health Thu, 12 Mar 2009 16:42:43 EST news156094923 A group of scientists in California is trying to develop a cheaper, less invasive way to spot the early stages of retinal damage from diabetic retinopathy, the leading cause of blindness in American adults, before it leads to blindness. As described in the special Interactive Science Publishing (ISP) issue of Optics Express, the Optical Society's (OSA) open-access journal, the scientists are using beams of light to measure blood flow in the back of the eye. http://www.physorg.com/news156007813.html Physics Wed, 11 Mar 2009 16:30:59 EST news156007813 Rights groups called on Google, Yahoo! and Microsoft on Friday not to censor their Web search engines one day next week to help protest cyber censorship. http://www.physorg.com/news155574479.html Technology Fri, 06 Mar 2009 15:08:29 EST news155574479 (PhysOrg.com) -- NASA managers completed a review Friday of space shuttle Discovery's readiness for flight and selected the official launch date for the STS-119 mission. Commander Lee Archambault and his six crewmates are now scheduled to lift off to the International Space Station at 9:20 p.m. EDT on March 11. http://www.physorg.com/news155573470.html Space & Earth Fri, 06 Mar 2009 14:52:47 EST news155573470 (PhysOrg.com) -- Traditionally, magnetism and superconductivity don't mix. For more than 20 years, the only known superconductors that worked at so-called "high" temperatures (above 30 K, or about -406 degrees Fahrenheit) were almost all based on copper. Materials with strong magnetism, scientists thought, would disrupt the pairing of electrons that is key to achieving the frictionless flow of superconductivity. So when a group of researchers recently found high-temperature superconductivity present in a class of iron-based materials, their discovery shocked and excited the scientific community. http://www.physorg.com/news155494328.html Physics Thu, 05 Mar 2009 16:52:46 EST news155494328 Too little activity by gene regulators called PPARs appears to be a major player in the irreversible lung damage that can occur in children with heart defects, researchers say. http://www.physorg.com/news155473873.html Medicine & Health Thu, 05 Mar 2009 11:11:33 EST news155473873 A University of Pennsylvania team has completed the first successful demonstration of a noninvasive optical device to monitor cerebral blood flow in patients with acute stroke, a leading cause of disability and death. http://www.physorg.com/news155227588.html Medicine & Health Mon, 02 Mar 2009 14:47:23 EST news155227588 With a new 3D-model for energy simulation scientists from Bochum, Germany, and Huntsville, USA, are studying the 'physical mystery' of the Voyager. Over 30 years ago the spacecraft detected particles in solar wind which were 'hotter' than they should have been according to the existing theory expounded by the mathematician Andrey Kolmogorov in 1941. http://www.physorg.com/news154966140.html Physics Fri, 27 Feb 2009 14:09:31 EST news154966140 In landlocked South Dakota, hundreds of miles and 1,600 feet of elevation from the nearest ocean, South Dakota State University professor Francis Ting studies the structure of breaking waves like those that pound the world`s coastlines. http://www.physorg.com/news154275025.html Technology Thu, 19 Feb 2009 14:11:14 EST news154275025 Great advances have been made in treating blockages in the arteries of the brain using angioplasty to widen the narrowed artery and a stent to hold the artery open. However, in-stent stenosis, or a re-blockage of the artery within the stent due to scar tissue or blood clots, is estimated to occur in up to 30 percent of patients and can cause a stroke or death. http://www.physorg.com/news153579286.html Medicine & Health Wed, 11 Feb 2009 12:57:41 EST news153579286 Some patients who suffer a stroke as a result of a blockage in an artery in the brain may benefit from a clot-busting drug nine or more hours after the onset of symptoms. The findings are published in the online edition of Radiology. http://www.physorg.com/news153404015.html Medicine & Health Mon, 09 Feb 2009 12:14:29 EST news153404015 Reperfusion therapy in the form of percutaneous coronary intervention (PCI) is now the recommended first treatment for victims of acute myocardial infarction. New European guidelines issued in November 2008 emphasised speed of action and the importance of reperfusion therapy to restore blood flow to the heart and improve survival rates. The benefits of PCI are less clear in patients with stable coronary artery disease; PCI has been shown to improve symptoms, but the impact on prognosis is still a matter of debate. http://www.physorg.com/news153138808.html Medicine & Health Fri, 06 Feb 2009 10:33:51 EST news153138808 Men don't necessarily need medications to have a romantic Valentine's Day. In fact, there are steps they can take to treat their erectile dysfunction without heading to the doctor or drugstore. Here are three simple tips to improve their performance in the bedroom. http://www.physorg.com/news152977749.html Medicine & Health Wed, 04 Feb 2009 13:49:32 EST news152977749 A grid of small arteries at the surface of the brain redirects flow and widens at critical points to restore blood supply to tissue starved of nutrients and oxygen following a stroke, a study published this week has found. http://www.physorg.com/news152561532.html Medicine & Health Fri, 30 Jan 2009 18:12:48 EST news152561532 Magnesium sulphate protects very premature babies from cerebral palsy, a new study shows. The findings of this Cochrane Review could help reduce incidence of the disabling condition, which currently affects around one in every 500 newborn babies overall, but up to one-in-ten very premature babies (< 28 weeks of gestation). http://www.physorg.com/news151755538.html Medicine & Health Wed, 21 Jan 2009 10:19:29 EST news151755538 A research group from Sweden investigated the mechanisms underlying the reduction in gastric blood flow induced by a luminal water extract of Helicobacter pylori (H. pylori). They found that the H. pylori water extract reduces gastric mucosal blood flow acutely through iNOS- and nerve-mediated pathways. http://www.physorg.com/news151754929.html Medicine & Health Wed, 21 Jan 2009 10:09:20 EST news151754929 Looking at the retina in the eyes of patients with cerebral malaria has provided scientists with a vital insight into why malaria infection in the brain is so deadly. In a study funded by the Wellcome Trust and Fight for Sight and published today in the Journal of Infectious Diseases, researchers in Malawi have shown for the first time in patients that the build-up of infected blood cells in the narrow blood vessels of the brain leads to a potentially lethal lack of oxygen to the brain. http://www.physorg.com/news151222194.html Medicine & Health Thu, 15 Jan 2009 06:09:54 EST news151222194 Doctors may be implanting too many artery-opening stents and could improve patient outcomes - and ultimately save lives - if they did more in-depth measurements of blood flow in the vessels to the heart. That's the finding of a study, to be published Jan. 15 in the New England Journal of Medicine, that evaluated the benefits of a new diagnostic tool to measure blood flow and determine whether stenting was the best option. http://www.physorg.com/news151176330.html Medicine & Health Wed, 14 Jan 2009 17:25:30 EST news151176330 (PhysOrg.com) -- A revealing snapshot of the effect of the downturn in the UK economy on the small business sector has been uncovered by an online survey produced by The University of Nottingham Institute for Enterprise and Innovation (UNIEI). http://www.physorg.com/news151077478.html Other Sciences Tue, 13 Jan 2009 13:57:58 EST news151077478 Canadian researchers have, for the first time, developed an organic substance that attracts and supports cells necessary for tissue repair and can be directly injected into problem areas. This development, published online in the FASEB Journal, is a major step toward treatments that allow people to more fully recover from injury and disease and may even help reduce the need for organ transplantation. http://www.physorg.com/news150977056.html Medicine & Health Mon, 12 Jan 2009 10:04:16 EST news150977056 New research published in the international journal Neurobiology of Aging by Marc Poulin, PhD, DPhil, finds that being physically fit helps the brain function at the top of its game. An Alberta Heritage Foundation for Medical Research Senior Scholar, Poulin finds that physical activity benefits blood flow in the brain, and, as a result, cognitive abilities. http://www.physorg.com/news150645185.html Medicine & Health Thu, 08 Jan 2009 13:53:05 EST news150645185