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. Publishing in PLoS Pathogens, researchers at from the Kimmel Cancer Center at Jefferson have found a novel mechanism by which drugs block HIV-1 from entering host cells. http://www.physorg.com/news178809016.html Medicine & Health Mon, 30 Nov 2009 13:11:08 EST news178809016 A novel technology involving use of stem cells, developed by Hebrew University of Jerusalem researchers, has been applied to provide better and rapid healing for patients suffering from complicated bone fractures. http://www.physorg.com/news178802935.html Medicine & Health Mon, 30 Nov 2009 11:50:02 EST news178802935 MRSA (methicillin-resistant Staphylococcus Aureus) and other drug-resistant bacteria could face annihilation as low-temperature plasma prototype devices have been developed to offer safe, quick, easy and unfailing bactericidal cocktails. http://www.physorg.com/news178438994.html Physics Thu, 26 Nov 2009 06:24:08 EST news178438994 Up to now, extreme production temperatures made it impossible to equip metallic components with RFID chips during the operating process. At Euromold in Frankfurt (Dec. 2-5), Germany, Fraunhofer researchers present a variation on a process that makes the non-destructive integration of radio chips a reality. http://www.physorg.com/news178279408.html Technology Tue, 24 Nov 2009 10:20:02 EST news178279408 (PhysOrg.com) -- NASA's Spitzer Space Telescope has contributed to the discovery of the youngest brown dwarf ever observed -- a finding that, if confirmed, may solve an astronomical mystery about how these cosmic misfits are formed. http://www.physorg.com/news178221292.html Space & Earth Mon, 23 Nov 2009 17:55:42 EST news178221292 (PhysOrg.com) -- Since the discovery in 2007 that a component of human semen called SEVI boosts infectivity of the virus that causes AIDS, researchers have been trying to learn more about SEVI and how it works, in hopes of thwarting its infection-promoting activity. http://www.physorg.com/news177859237.html Chemistry Thu, 19 Nov 2009 13:21:15 EST news177859237 (PhysOrg.com) -- The investment in nuclear power has been growing around the world over the last few years, being viewed as a means for countries to control their energy security, avoid the price fluctuations of other energy sources, and reduce their carbon dioxide emissions, but concerns are now being raised. http://www.physorg.com/news177839133.html Physics Thu, 19 Nov 2009 09:50:06 EST news177839133 (PhysOrg.com) -- A new way to access and reuse environmental data from diverse sources has been devised by European researchers. They foresee a future where environmental data and services are offered on the open market. http://www.physorg.com/news177671377.html Technology Tue, 17 Nov 2009 09:10:05 EST news177671377 An upgrade to a Cray XT5 high-performance computing system deployed by the Department of Energy has made the "Jaguar" supercomputer the world's fastest. Located at Oak Ridge National Laboratory, Jaguar is the scientific research community's most powerful computational tool for exploring solutions to some of today's most difficult problems. The upgrade, funded with $19.9 million under the Recovery Act, will enable scientific simulations for exploring solutions to climate change and the development of new energy technologies. http://www.physorg.com/news177608722.html Electronics Mon, 16 Nov 2009 16:30:02 EST news177608722 (PhysOrg.com) -- Astrophysicists at the University of Warwick and Kiel University have discovered two earth sized bodies with oxygen rich atmospheres - however there is a bit of a disappointing snag for anyone looking for a potential home for alien life, or even a future home for ourselves, as they are not planets but are actually two unusual white dwarf stars. http://www.physorg.com/news177258394.html Space & Earth Thu, 12 Nov 2009 14:27:33 EST news177258394 A very close and detailed study of how the most robust antibodies work to block the HIV virus as it seeks entry into healthy cells has revealed a new direction for researchers hoping to design an effective vaccine. http://www.physorg.com/news177008235.html Medicine & Health Mon, 09 Nov 2009 16:58:05 EST news177008235 A new class of supernova was discovered by scientists at Berkeley and may be the first example of a new type of exploding star. A team of astrophysicists at UC Santa Barbara had predicted this kind of explosion in their theoretical work. http://www.physorg.com/news176654551.html Space & Earth Thu, 05 Nov 2009 15:50:01 EST news176654551 (PhysOrg.com) -- The first stars in the universe may have been very different from the stars we see today, yet they may hold clues to understanding some of the mysterious features of the universe. These "dark stars," first theorized in 2007, could grow to be much larger than modern stars, and would be powered by dark matter particles that annihilate inside them, rather than by nuclear fusion. In the early universe, dark stars would have emitted visible light like the Sun, but today their light would be redshifted into the infrared range by the time it reaches us, and so dark stars would be invisible to the naked eye. http://www.physorg.com/news176457990.html Physics Tue, 03 Nov 2009 09:40:01 EST news176457990 A new generation of high-energy (>kJ) petawatt (HEPW) lasers is being constructed worldwide to study high intensity laser matter interactions, including fast ignition. Fast ignition is a laser-based technique for heating and igniting deuterium and tritium fuel to fusion temperatures in a two-step process. In the first phase, laser beams vaporize a fuel pellet and compress it to a thousand times its original density, while in the second phase, electrons accelerated by an intense-laser pulse deposit energy within the fuel assembly, causing rapid heating. This is akin to the way a gasoline engine works with a spark plug. http://www.physorg.com/news176403056.html Physics Mon, 02 Nov 2009 23:00:01 EST news176403056 If you keep twisting a straight elastic string, at some moment it starts kinking in a wild way. Something similar occurs when one increases the electrical current flowing in a magnetized plasma doughnut: it takes on a wild helical shape, which spoils its performance. This phenomenon concerns scientists exploring fusion power, who use powerful magnetic fields to confine plasma during their experiments. http://www.physorg.com/news176402729.html Physics Mon, 02 Nov 2009 20:20:02 EST news176402729