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Search results for 'American Physical Society'


Physicists observe experimental evidence for directed percolation A team of physicists has, for the first time, seen convincing experimental evidence for directed percolation, a phenomenon that turns up in computer models of the ways diseases spread through a population or how water soaks through loose soil. Their observation strengthens the case for directed percolation's relevance to real systems, and lends new vigor to long-standing theories about how it works. Their experiment is reported in Physical Review E and highlighted with a Viewpoint in the November 16 issue of Physics (http://physics.aps.org). http://www.news-medical.net/news/20091120/Physicists-observe-experimental-evidence-for-directed-percolation.aspx
World-record energies for laser accelerated particles achieved An international team of physicists at Los Alamos National Laboratory has succeeded in using intense laser light to accelerate protons to energies never before achieved. Using this technique, scientists can now accelerate particles to extremely high velocities that would otherwise only be possible using large accelerator facilities. Physicists around the world are examining laser particle acceleration and laser produced radiation for potential future uses in cancer treatment. http://www.news-medical.net/news/20091103/World-record-energies-for-laser-accelerated-particles-achieved.aspx
New research may help in understanding mechanisms involved in blood flow-related disorders Red blood cells, which make up 45 percent of blood, normally take the shape of circular cushions with a dimple on either side. But they can sometimes deform into an asymmetrical slipper shape. A team of physicists have used simulations to explore how fluid flow might be responsible for this deformation, as well as how the deformation in turn affects blood flow. http://www.news-medical.net/news/20091027/New-research-may-help-in-understanding-mechanisms-involved-in-blood-flow-related-disorders.aspx
Engineering flu vaccines A new computerized method of testing could help world health officials better identify flu vaccines that are effective against multiple strains of the disease. http://www.news-medical.net/news/2009/03/17/47003.aspx
Scientists invent novel low-viscosity gel for regenerating human tissue University of Delaware scientists have invented a novel biomaterial with surprising antibacterial properties that can be injected as a low-viscosity gel into a wound where it rigidifies nearly on contact--opening the door to the possibility of delivering a targeted payload of cells and antibiotics to repair the damaged tissue. http://www.news-medical.net/news/2007/07/19/27821.aspx
Diagnosing skin cancers with laser-based system In an early step toward nonsurgical screening for malignant skin cancers, Duke University chemists have demonstrated a laser-based system that can capture three-dimensional images of the chemical and structural changes under way beneath the surface of human skin. http://www.news-medical.net/news/2007/06/05/25993.aspx
New laser technology for more precise cancer treatments Tom Cowan’s team is thinking smaller, but with big impact. Particle accelerators are a key research tool in a high energy physicist’s arsenal, but they take up a lot of space - miles and miles of it. But at the University of Nevada, Reno, smaller is better. http://www.news-medical.net/news/2005/05/10/9938.aspx
Researchers study radiation blockers while conducting nuclear imaging of Iodine uptake in mouse tissues Scientists have found that a dose five times higher than the FDA-recommended dosage of potassium iodide in the event of a nuclear accident is needed to protect small animals effectively from radioactive iodide in medical imaging procedures. The long-term animal nuclear imaging project is being conducted by a collaboration of biology and physics researchers from the Department of Energy's Jefferson Lab and The College of William & Mary (CWM). http://www.news-medical.net/news/2005/04/20/9379.aspx
Revival of a unique and proven cancer treatment, neutron therapy Northern Illinois University has announced plans to revive a unique and proven cancer treatment that blends advanced medical science with accelerator physics developed at Fermi National Accelerator Laboratory, a Department of Energy laboratory in Batavia, Ill. http://www.news-medical.net/news/2004/12/07/6746.aspx
Nano-bullet for non-invasive treatment of cancers Virginia Commonwealth University physicists, working with one of the most precious materials on Earth – gold -- and with one of the most common – sand -- have created a so-called “nano-bullet” that targets tumors and may help scientists develop non-invasive cancer treatments. http://www.news-medical.net/news/2004/10/20/5695.aspx
Computers can't compete with humans in the ability to recognize patterns or images Computers, for all of their computational muscle, do not hold a candle to humans in the ability to recognize patterns or images. This basic quandary in computational theory – why can computers crunch numbers but cannot efficiently process images – has stumped scientists for many years. http://www.news-medical.net/news/2004/05/10/1390.aspx
Scientist discovers why skin turns leathery “The reason our skin becomes more leathery and thick as we age might be due to a loss of elasticity in the cells,” says Igor Sokolov of Clarkson University, who presented his latest research findings during a session on bio-imaging techniques at the Annual American Physical Society (APS) March meeting in Montreal. http://www.news-medical.net/news/2004/04/21/720.aspx
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