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. The methods mothers use to control their children during playtime and other daily activities could have a negative impact on their child's self-esteem and behavior, according to a new Purdue University study. http://www.physorg.com/news137081302.html Medicine & Health Mon, 04 Aug 2008 15:08:22 EST news137081302