[applause] david b. mumford. finish the 2009 national medal of science to david b. mumford, brown university. for his contributions to the field of mathematics which fundamentally changeddal yes brayic geometry and for connecting mathematics to other topics such as neurobiology. [applause] stanley b. prusiner. the 2009 national medal of science to stanley b. prusiner, university of california san francisco. for his discovery of pri ons, the causative agent of neurodegenerative diseases and his continuing efforts to develop effective methods for detecting and treating prix ondiseases. [applause] warren m. washington. the 2009 national medal of science to warren m. washington, national center for atmospheric research for his development and use of global climate models to understand climate and explain the role of human activities and natural processes in the earth's climate systems and for his work to support a diverse science and engineering work force. [applause] >> amnon yariv. the 2009 national medal of science to amnon yariv, california institute of technology. f

[applause] a >> david b. mumford. the 2009 national medal of science to david b. mumford, brown university, for his contributions to the field of mathematics, which fundamentally changed algebraic geometry, and for connecting mathematics to other disciplines such as computer vision and neurobiology. [applause] >> stanley b. prusiner. the 2009 national medal of science to stanley b. prusiner, university of california san francisco, for his discovery of prions, the causative agent of bovine spongiform encephalopathy and other related neurodegenerative diseases, and his continuing efforts to develop effective methods for detecting and treating prion diseases. [applause] >> warren m. washington. the 2009 national medal of science to warren m. washington, national center for atmospheric research, for his development and use of global climate models to understand climate and explain the role of human activities and natural processes in the earth's climate system, and for his work to support a diverse science and engineering workforce. [applause] >> amnon yariv. the 2009