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. As the global population hits seven billion, experts are warning that skewed gender ratios could fuel the emergence of volatile "bachelor nations" driven by an aggressive competition for brides. http://phys.org/news238827207.html Other Sciences Wed, 26 Oct 2011 05:54:25 EST news238827207 (AP) -- In its first study of women's health around the globe, the World Health Organization said Monday that the AIDS virus is the leading cause of death and disease among women between the ages of 15 and 44. http://phys.org/news176996772.html Medicine & Health Mon, 09 Nov 2009 14:00:02 EST news176996772