Description: [caption id="" align="aligncenter" width="400" caption=""Backscatter" x-ray scan, courtesy of Flickr user publik16, Creative Commons: Attribution 2.0."][/caption] Following the Christmas Day capture of a passenger, dubbed “The Underwear Bomber,” who attempted to blow up an American airliner, controversy swirls around the use and efficacy of full body scanners and the fate of
Description: [view in Spanish][edan-image:id=siris_sic_9227,size=110,left]Exchanging specimens is essential in botanical research: Herbaria swap their duplicates in return for specimens they lack. Such international trading is based on relations established through correspondence and research trips, relations that endure through generations of botanists. By the early twentieth century,