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An induction ceremony of new members of the American Academy of Arts and Sciences Image - In this video, DESI project participants share their insight and excitement about the project and its potential for new and unexpected discoveries. (Credit: Marilyn Chung/Berkeley Lab, DESI Collaboration) A photo of a male doctor speaking with a veteran in a wheelchair. Structure of human TFIIH, a large protein assembly that acts to help repair and read our genome. Shown in the foreground is the a rendering of the overall architecture, and in the background it interacts with DNA helices. The atomic structure of the SOS protein, a cell messaging molecule that uses a unique timing mechanism to regulate activation of a critical immune system pathway.