http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Traditional retailers and cash-strapped states face a tough sell in the House as they lobby Congress to limit tax-free shopping on the Internet. http://phys.org/news287121299.html Technology Tue, 07 May 2013 05:10:01 EST news287121299 Knee osteoarthritis (OA) accounts for more disability in the elderly than any other disease. Running, although it has proven cardiovascular and other health benefits, can increase stresses on the joints of the leg. In a study published in the December 2009 issue of PM&R: The journal of injury, function and rehabilitation, researchers compared the effects on knee, hip and ankle joint motions of running barefoot versus running in modern running shoes. They concluded that running shoes exerted more stress on these joints compared to running barefoot or walking in high-heeled shoes. http://phys.org/news181830502.html Medicine & Health Mon, 04 Jan 2010 12:28:39 EST news181830502 From running shoes to ceiling fans, consumers are becoming the designers of their own products. A new study in the Journal of Consumer Research looks at the ways consumers compare their creations to those designed by professionals. http://phys.org/news170352193.html Other Sciences Tue, 25 Aug 2009 03:10:02 EST news170352193 Australian researchers have admitted they had found no scientific proof that hi-tech running shoes improve athletic performance or limit injury. http://phys.org/news156063767.html Medicine & Health Thu, 12 Mar 2009 08:03:07 EST news156063767