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Flu virus increases resistance to Tamiflu The main drug used to treat the most-common form of flu in the United States - developed by Foster City, Calif.-based Gilead Sciences Inc. - is ineffective against most cases tested so far this flu season, the U.S. Centers for Disease Control and Prevention said. (GILD) (GSK) bizjournalsObserving all the intermediate steps of a chemical reaction Over the past 25 years, Scanning Tunneling Microscopy (STM) has brought us extremely detailed images of matter at the molecular and atomic level. STM, which is a non-optical technique, works by scanning an electrical probe over a surface to be imaged to detect a weak electric current flowing between the tip and the surface. The STM allows scientists to visualize regions of high electron density and hence infer the position of individual atoms and molecules on the surface of a lattice.Researchers also believe that the strength of time-lapsed high-resolution STM work to unravel complex surface reactions would allow them to achieve one of the 'Holy Grails' within the area of surface science, which is to directly observe chemical reactions at the atomic scale. A research team in Denmark has now shown that, by means of high-resolution STM studies in conjunction with density functional theory calculations, it is possible to follow the intermediate steps of a complex oxidation reaction. nanowerk.comFound: Oldest fossilized brain ever is uncovered in Kansas A 300 million-year-old fossilized fish brain was discovered during a routine computed tomography (CT) scan, according to a study published today in the Proceedings of the national academy of Sciences. Until now, scientists assumed that brains rarely--if ever--turned into fossils. Other soft tissue fossils, such as muscles and kidneys, have been found that date back longer than 350 million years ago, but because the brain is delicate and consists mostly of water, it's much less likely to be preserved in fossil form, says study co-author John Maisey, a curator in the paleontology division of the American Museum of Natural History in New York. But "It's more than just a curiosity," he says. "Modern technology has revealed a fossil that we really didn't know about before." High-powered scans using x-ray synchrotron microtomography (which, like a CT, uses x-rays to image cross-sections of an object) allowed scientists to peer into the rock-solid skull to see the 0. Scientific AmericanFootie fans take rivalries into hyperspace Practitioners of the beautiful game can now be found kicking symmetrical objects around in other dimensionsIt has been a bad week for Tottenham Hotspur. Having been knocked out of the UEFA Cup on Thursday, the team then lost to Manchester United in the Carling Cup Final yesterday. However, supporters can console themselves with the knowledge that Spurs is the only football team in the world to have gained honours in mathematical hyperspace: two of its players have symmetry groups named after them.The worlds of maths and science have a long history of naming important objects after people. For example, when astronomers discover new asteroids they often name them in honour of famous individuals, including pharaohs (2436 Hatshepsut), popes (8661 Ratzinger) and musicians (1815 Beethoven, 3834 Zappafrank and 15092 Beegees). Similarly, every time a biologist discovers a new species, there is the opportunity to honour someone or something. In 2007, Joe McHugh discovered a new species of Peruv Guardian.co.ukFootball fans take their rivalries into hyperspace Practitioners of the beautiful game can now be found kicking symmetrical objects around in other dimensionsIt has been a bad week for Tottenham Hotspur. Having been knocked out of the UEFA Cup on Thursday, the team then lost to Manchester United in the Carling Cup Final yesterday. However, supporters can console themselves with the knowledge that Spurs is the only football team in the world to have gained honours in mathematical hyperspace: two of its players have symmetry groups named after them.The worlds of maths and science have a long history of naming important objects after people. For example, when astronomers discover new asteroids they often name them in honour of famous individuals, including pharaohs (2436 Hatshepsut), popes (8661 Ratzinger) and musicians (1815 Beethoven, 3834 Zappafrank and 15092 Beegees). Similarly, every time a biologist discovers a new species, there is the opportunity to honour someone or something. In 2007, Joe McHugh discovered a new species of Peruv Guardian.co.ukA dozen bizarre devices from medicine`s dark past This collection of images of extraordinary objects are among 2500 featured in Brought to Life, the London Science Museum's new multimedia website exploring centuries of medical history NewScientist.comObama to put his stamp on science policy WASHINGTON (AP) -- President Barack Obama says science matters to his administration, a direct rebuke to his predecessor and his policies.... The Arizona RepublicUp close and personal Mark Williamson describes how space technology has allowed planetary astronomy to develop froma science of entirely remote observation to one of immersive experimentation Physicsworld.comIndividual Differences In Distance Perception And Fear Of Heights Distance perception is among the most pervasive mental phenomena and oldest research topics in behavioural science. However, we do not understand well the most common finding of distance perception research, that of large individual differences. Evolved navigation theory predicts that these individual differences may relate to navigational costs. Perception of navigation costs in the current study predicted large distance perception differences. Medicalnewstoday.comBioScience tip sheet, March 2009 (American Institute of Biological Sciences) The press release provides a listing of peer-reviewed research articles published in the March 2009 issue of BioScience, the journal of the American Institute of Biological Sciences. The journal's tag line is 'Organisms from Molecules to the Environment.' Eurekalert.org1 2 |
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