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. Microscopic particles of carbon known as buckyballs may be able to keep the nation's water pipes clear in the same way clot-busting drugs prevent arteries from clogging up. http://www.physorg.com/news155457592.html Nanotechnology Thu, 05 Mar 2009 06:40:16 EST news155457592 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 (PhysOrg.com) -- The vast expanses of intergalactic space appear to be filled with a haze of tiny, smoke-like "dust" particles that dim the light from distant objects and subtly change their colors, according to a team of astronomers from the Sloan Digital Sky Survey (SDSS-II), including a researcher from the University of California, Davis. http://www.physorg.com/news154893222.html Space & Earth Thu, 26 Feb 2009 17:54:42 EST news154893222 (PhysOrg.com) -- As the 2008-09 Antarctic drilling season concludes, the IceCube Neutrino Observatory is on track to be finished as planned in 2011. http://www.physorg.com/news154792355.html Physics Wed, 25 Feb 2009 13:53:19 EST news154792355 (PhysOrg.com) -- Neutral atoms--having no net electric charge--usually don't act very dramatically around a magnetic field. But by `dressing them up` with light, researchers at the Joint Quantum Institute, a collaborative venture of the National Institute of Standards and Technology and the University of Maryland at College Park, have caused ultracold rubidium atoms to undergo a startling transformation. http://www.physorg.com/news154769672.html Physics Wed, 25 Feb 2009 07:36:38 EST news154769672 (PhysOrg.com) -- A team of astronomers, led by Loretta Dunne from the University of Nottingham, have found some very unusual stardust. In a paper to be published in Monthly Notices of the Royal Astronomical Society, Dr Dunne and her team find new evidence for the production of copious quantities of dust in the Cassiopeia A supernova remnant, the remains of a star that exploded about 300 years ago. http://www.physorg.com/news154709258.html Space & Earth Tue, 24 Feb 2009 14:48:14 EST news154709258 A study by researchers at the Johns Hopkins University found an association between increasing levels of indoor particulate matter pollution and the severity of asthma symptoms among children. The study, which followed a group of asthmatic children in Baltimore, Md., is among the first to examine the effects of indoor particulate matter pollution. The results are published in the February 2009 edition of the journal Environmental Health Perspectives. http://www.physorg.com/news154264285.html Medicine & Health Thu, 19 Feb 2009 11:12:20 EST news154264285 (PhysOrg.com) -- What do Saturn and flowers have in common? As shapes, both possess certain symmetries that are easily recognizable in the natural world. Now, at an extremely small level, researchers from Duke University and the University of Massachusetts have created a unique set of conditions in which tiny particles within a solution will consistently assemble themselves into these and other complex shapes. http://www.physorg.com/news154190856.html Nanotechnology Wed, 18 Feb 2009 14:48:45 EST news154190856 (PhysOrg.com) -- The smallest nano-sized silica particles used in biomedicine and engineering likely won't cause unexpected biological responses due to their size, according to work presented today. The result should allay fears that cells and tissues will react unpredictably when exposed to the finest silica nanomaterials in industrial or commercial applications. http://www.physorg.com/news154021822.html Nanotechnology Mon, 16 Feb 2009 15:51:37 EST news154021822 The identity and origin of tiny, potentially hazardous particles emitted from common laser printers have been revealed by a new study at Queensland University of Technology. http://www.physorg.com/news153569767.html Medicine & Health Wed, 11 Feb 2009 10:17:03 EST news153569767 (PhysOrg.com) -- A team of Los Alamos researchers led by Victor Klimov has shown that carrier multiplication -when a photon creates multiple electrons -is a real phenomenon in tiny semiconductor crystals and not a false observation born of extraneous effects that mimic carrier multiplication. The research, explained in a recent issue of Accounts of Chemical Research, shows the possibility of solar cells that create more than one unit of energy per photon. http://www.physorg.com/news153507595.html Nanotechnology Tue, 10 Feb 2009 17:01:15 EST news153507595 (PhysOrg.com) -- Astronomers have made an unexpected find using a polarimeter (an instrument used to measure the wave properties of light) funded by the Science and Technology Facilities Council (STFC), that has the potential to affect future climate models. http://www.physorg.com/news153507391.html Space & Earth Tue, 10 Feb 2009 16:56:59 EST news153507391 (PhysOrg.com) -- Saturday, Feb. 7, marked the 10th anniversary of the launch of NASA's well-traveled Stardust spacecraft. http://www.physorg.com/news153417966.html Space & Earth Mon, 09 Feb 2009 16:10:24 EST news153417966 A new therapy being developed at the University of Florida could, in time, produce another weapon for the fight against herpes. http://www.physorg.com/news152885637.html Medicine & Health Tue, 03 Feb 2009 12:14:18 EST news152885637 Algae is a livid green giveaway of nutrient pollution in a lake. Scientists would love to reproduce that action in tiny particles that would turn different colors if exposed to biological weapons, food spoilage or signs of poor health in the blood. http://www.physorg.com/news151508961.html Nanotechnology Sun, 18 Jan 2009 13:49:21 EST news151508961 Scientists need a more detailed understanding of how human-produced atmospheric particles, called aerosols, affect climate in order to produce better predictions of Earth's future climate, according to a NASA-led report issued by the U.S. Climate Change Science Program on Friday. http://www.physorg.com/news151383514.html Space & Earth Sat, 17 Jan 2009 02:58:34 EST news151383514 (PhysOrg.com) -- When physicists experiment with quantum entanglement, they usually work with photons, the intangible particles of light. In the past few years, however, scientists have begun to broaden their experiments by entangling material particles. By seeing how far this quantum property extends into the classical realm, researchers can investigate the implications of entanglement in the macroscopic world, such as our intuitive assumptions of `realism` - that objects exist whether or not anyone observes them - and `locality` - that objects cannot communicate with each other faster than the speed of light. http://www.physorg.com/news151327985.html Physics Fri, 16 Jan 2009 11:33:05 EST news151327985 (PhysOrg.com) -- Liquid or glass, hard or soft -- researchers at the University of Twente, The Netherlands, are investigating a new 'model material' that can adopt a series of different properties. This is possible because of miniscule balls of knotted polymers which become enlarged as the temperature drops. It has interesting potential for research into the consequences of ageing in the properties of glass, which can serve as a model for the natural process of ageing. Researchers in the Physics of Complex Fluids group have published a paper on the subject in Physical Review Letters. http://www.physorg.com/news150729182.html Nanotechnology Fri, 09 Jan 2009 13:13:02 EST news150729182 Researchers have uncovered why some dietary fats, specifically long-chain fats, such as oleic acid (found in olive oil), are more prone to induce inflammation. Long-chain fats, it turns out, promote increased intestinal absorption of pro-inflammatory bacterial molecules called lipopolysaccharides (LPS). This study appears in the January issue of JLR. http://www.physorg.com/news150652159.html Medicine & Health Thu, 08 Jan 2009 15:49:19 EST news150652159 Climate researchers have shown that big volcanic eruptions over the past 450 years have temporarily cooled weather in the tropics -but suggest that such effects may have been masked in the 20th century by rising global temperatures. Their paper, which shows that higher latitudes can be even more sensitive to volcanism, appears in the current issue of Nature Geoscience. http://www.physorg.com/news150397996.html Space & Earth Mon, 05 Jan 2009 17:13:16 EST news150397996 Abundant tiny particles of diamond dust exist in sediments dating to 12,900 years ago at six North American sites, adding strong evidence for Earth's impact with a rare swarm of carbon-and-water-rich comets or carbonaceous chondrites, reports a nine-member scientific team. http://www.physorg.com/news150048795.html Nanotechnology Thu, 01 Jan 2009 16:13:15 EST news150048795 (PhysOrg.com) -- Biological fuel cells use enzymes or whole microorganisms as biocatalysts for the direct conversion of chemical energy to electrical energy. One type of microbial fuel cell uses anodes (positive electrodes) coated with a bacterial film. The fuel consists of a substrate that the bacteria can break down. The electrons released in this process must be transferred to the anode in order to be drawn off as current. But how can the electrons be efficiently conducted from the microbial metabolism that occurs inside a cell to the anode? http://www.physorg.com/news149857405.html Chemistry Tue, 30 Dec 2008 11:03:25 EST news149857405 (PhysOrg.com) -- Earth's magnetic field, which shields our planet from particles streaming outward from the Sun, often develops two holes that allow the largest leaks, according to researchers sponsored by NASA and the National Science Foundation. http://www.physorg.com/news148665600.html Space & Earth Tue, 16 Dec 2008 16:00:00 EST news148665600 Researchers in Pennsylvania are reporting for the first time that nanoparticles 1/5,000 the diameter of a human hair encapsulating an experimental anticancer agent, kill human melanoma and drug-resistant breast cancer cells growing in laboratory cultures. The discovery could lead to the development of a new generation of anti-cancer drugs that are safer and more effective than conventional chemotherapy agents, the scientists suggest. The research is scheduled for the Dec. 10 issue of ACS' Nano Letters. http://www.physorg.com/news148573402.html Nanotechnology Mon, 15 Dec 2008 14:23:22 EST news148573402 (PhysOrg.com) -- For years, many physicists have accepted that dark matter is composed of weakly interacting massive particles (WIMPs). The fact that WIMPs can naturally explain the amount of dark matter in the universe - left over from the Big Bang - has been described as the `WIMP miracle.` http://www.physorg.com/news148316483.html Physics Fri, 12 Dec 2008 15:01:23 EST news148316483 A detailed analysis of the measurements of five different satellites has revealed the existence of the warm plasma cloak, a new region of the magnetosphere, which is the invisible shield of magnetic fields and electrically charged particles that surround and protect Earth from the onslaught of the solar wind. http://www.physorg.com/news148316137.html Space & Earth Fri, 12 Dec 2008 14:55:37 EST news148316137 (PhysOrg.com) -- Several research projects are underway to try to detect particles that may make up the mysterious `dark matter` believed to dominate the universe`s mass. But the existing detectors have a problem: They also pick up particles of ordinary matter - hurtling neutrons that masquerade as the elusive dark-matter particles the instruments are designed to find. http://www.physorg.com/news148131822.html Physics Wed, 10 Dec 2008 11:43:42 EST news148131822 (PhysOrg.com) -- Researchers have investigated the possibility that laser printers emit pathogenic toner particles into the air, which has been a subject of public controversy. Some reports have suggested that laser printers release tiny particles that could have negative health effects. http://www.physorg.com/news147449602.html Medicine & Health Tue, 02 Dec 2008 14:13:22 EST news147449602 Researchers at Purdue University have developed a technique that uses a laser and holograms to precisely position numerous tiny particles within seconds, representing a potential new tool to analyze biological samples or create devices using nanoassembly. http://www.physorg.com/news147443587.html Nanotechnology Tue, 02 Dec 2008 12:33:07 EST news147443587 (PhysOrg.com) -- Scientists using ESA's Mars Express have produced the first crude map of aurorae on Mars. These displays of ultraviolet light appear to be located close to the residual magnetic fields generated by Mars's crustal rocks. They highlight a number of mysteries about the way Mars interacts with electrically charged particles originating from the Sun. http://www.physorg.com/news146487857.html Space & Earth Fri, 21 Nov 2008 11:04:17 EST news146487857