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PhysOrg.com
New Algorithm Significantly Boosts Routing Efficiency of Networks (PhysOrg.com) -- A time-and-money-saving question shared by commuters in their cars and networks sharing ever-changing Internet resources is: "What's the best way to get from here to there?" Electronic Arts won't extend Take-Two deadline (AP) -- Video game publisher Electronic Arts Inc. may be retracting its hostile bid for smaller rival Take-Two Interactive Software Inc., but a deal - and a friendly one at that - is more likely than ever. New immunization strategy could halve the doses for stopping computer virus spreading Researchers have developed a new immunization strategy that requires up to 50% fewer immunization doses compared with the current most efficient strategy. The new strategy could be used to prevent the spread of human epidemics and computer viruses, and it applies to a wide variety of networks. New Speed Record for Magnetic Memories (PhysOrg.com) -- An experiment carried out at the Physikalisch-Technische Bundesanstalt (PTB) has realized spin torque switching of a nanomagnet as fast as the fundamental speed limit allows. Using this so-called ballistic switching future non-volatile magnetic memories could operate as fast as the fastest non-volatile memories. The experiments are described in the next issue of Physical Review Letters (22 August, 2008). When the patient can't decide Family members are often called upon to make medical choices for patients who are unable to do so themselves. Researchers led by Alexia Torke, M.D., of the Indiana University School of Medicine and the Regenstrief Institute, Inc., studied how physicians treating these patients interacted with surrogate decision-makers. Scientists making waves with wireless ocean monitoring The Great Barrier Reef and other sensitive environments could in future be managed with the help of a marine wireless network developed by University of Queensland (UQ)-led research. Newly detected air pollutant mimics damaging effects of cigarette smoke A previously unrecognized group of air pollutants could have effects remarkably similar to harmful substances found in tobacco smoke, Louisiana scientists are reporting in a study scheduled for presentation today at the 236th National Meeting of the American Chemical Society. Inhaling those pollutants exposes the average person up to 300 times more free radicals daily than from smoking one cigarette, they added. Suicidal thoughts among college students more common than expected More than half of 26,000 students across 70 colleges and universities who completed a survey on suicidal experiences reported having at least one episode of suicidal thinking at some point in their lives. Furthermore, 15 percent of students surveyed reported having seriously considered attempting suicide and more than 5 percent reported making a suicide attempt at least once in their lifetime. Toward Plastic Spin Transistors (PhysOrg.com) -- University of Utah physicists successfully controlled an electrical current using the "spin" within electrons - a step toward building an organic "spin transistor": a plastic semiconductor switch for future ultrafast computers and electronics. Cataloguing invisible life: Microbe genome emerges from lake sediment When entrepreneurial geneticist Craig Venter sailed around the world on his yacht sequencing samples of seawater, it was an ambitious project to use genetics to understand invisible ecological communities. But his scientific legacy was disappointing - a jumble of mystery DNA fragments belonging to thousands of unknown organisms. ... |