en-us Tue, 10 Jun 2008 23:59:59 -0700 The U.S. Food and Drug Administration today proposed a new four-star rating system for over-the-counter sunscreen drug products with ultraviolet A UVA and ultraviolet B UVB protection. The proposed regulations would for the first time put a permanent safety standard...]]> Thu, 23 Aug 2007 23:59:59 -0700 Thu, 26 Jul 2007 23:59:59 -0700 Sun, 01 Jul 2007 23:59:59 -0700 Tue, 13 Feb 2007 06:52:06 -0800 JAVA JAVA Sun, 17 Dec 2006 23:59:59 -0800 Wed, 15 Nov 2006 23:59:59 -0800 Wed, 06 Sep 2006 23:59:59 -0700 SEC SEC The formation of clouds is affected by the lightness or darkness of air pollution particles, U.S. and Israeli scientists have determined, solving one puzzing question about the role of clouds in global warming. The capacity of air pollution to absorb energy from the Sun is...]]> Fri, 14 Jul 2006 23:59:59 -0700 Wed, 26 Apr 2006 00:00:00 -0700 Tue, 18 Apr 2006 23:59:59 -0700 Wed, 11 Jan 2006 23:59:59 -0800 Sun, 01 Jan 2006 23:59:59 -0800 Tue, 06 Sep 2005 23:59:59 -0700 Fri, 01 Jul 2005 23:59:59 -0700 QTM QTM Wed, 01 Jun 2005 23:59:59 -0700 QTM QTM Wed, 01 Jun 2005 23:59:59 -0700 Wed, 01 Jun 2005 23:59:59 -0700 QTM QTM Wed, 13 Apr 2005 23:59:59 -0700 JAVA JAVA Fri, 11 Mar 2005 23:59:59 -0800