American Roentgen Ray Society excuse whatever" for anyone being injured during medical X-rays, which "could be taken in a fraction of a second". American Roentgen Ray Society The American Roentgen Ray Society (ARRS) is a radiology society in the United States. It was founded in 1900, in the early days of X-ray and radiation study. Headquartered in Leesburg, Virginia, the society publishes a monthly peer-reviewed journal: "American Journal of Roentgenology" (previously "American Journal of Radiology"), providing a forum for advances in radiology and related fields. It provides scholarships, and presents awards. Its educational programs include seminars and a program of continuing education for radiologic
Wilhelm Barthlott (Geodiversity), including migration and globalization. His Biodiversity Distribution Map has been published in numerous textbooks in addition to being the foundation for many postgraduate studies. In the framework of the BMBF-BIOTA-AFRICA project led by him, biodiversity patterns in Africa as a model continent are analyzed and potential impacts of climate change are investigated. Wilhelm Barthlott was the first botanist to use high resolution in scanning electron microscopy systematically in the research of biological surfaces since 1970. Most prominent among his results was the discovery of the self-cleaning effect of superhydrophobic micro- and nanostructured surfaces, which were technically realized with the