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Rising temperatures and CO2 decrease tree growth (PNAS, May 13, 2003) Orb, human retinal scan, drosophila wings, and tree branches (© Patricia Olynyk) Sackler Colloquium on Evolution and Exploration of the Solar System (Jan. 5-6, 2007) Antibiotic-like peptide induces bacterial sporulation (PNAS, Aug. 3, 2004)

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Highlights:

yellow bullet  This Week in PNAS 
Highlights from the recent edition of Proceedings of the National Academy of Sciences (PNAS), the Academy's scientific journal

yellow bullet  Biographical Memoirs
Access more than 1,000 biographies of leading U.S. scientists including Thomas Edison, Alexander Graham Bell, Margaret Mead, Louis Agassiz, and Joseph Henry

News:

yellow bullet  Data-based Counterterrorism Programs Should be Evaluated for Effectiveness, Privacy
Oct. 7, 2008: All U.S. agencies with counterterrorism programs that collect or "mine" personal data -- such as phone records or Web sites visited -- should be required to evaluate the programs' effectiveness, lawfulness, and impacts on privacy.

yellow bullet  Grand Challenges for Engineering Spur Discussion at NAE Annual Meeting
Oct. 6, 2008: Representatives of the presidential campaigns of Sens. Obama and McCain, journalists, and members of the National Academy of Engineering's committee on the "Grand Challenges for Engineering" participated in a lively discussion of how to encourage action on this century's greatest engineering challenges and opportunities.

yellow bullet  L'Oreal USA 2009 Fellowships for Women in Science
Oct. 1, 2008: L’Oréal is accepting applications for grants to be awarded to five outstanding female postdoctoral researchers in science, math, engineering, or computer sciences. A jury of nine scientists, chaired by NAS President Ralph J. Cicerone, will select the 2009 L’Oréal USA Women in Science fellows.

yellow bullet  International Cooperation Needed to Lower Nuclear Proliferation Risks
Sept. 30, 2008: As global interest in nuclear energy grows, the United States and Russia, along with other countries and the International Atomic Energy Agency, should redouble efforts to ensure a reliable supply of nuclear fuel to nations pursuing this energy option, lowering these nations' incentive to build their own facilities to enrich uranium and reprocess spent fuel.

yellow bullet  Everglades Restoration Effort Making Scant Progress
Sept. 29, 2008: Complex project planning and funding processes are hindering a federal and state effort to restore the Florida Everglades.

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Koshland Science Museum

Free Family Weekend at the Koshland Science Museum: October 18-19 
As part of Earth Science Week and No Child Left Inside, the Koshland Science Museum offers a weekend of free admission and special events, including a hunt that explores the science hidden in the Penn Quarter neighborhood of Washington, DC. Challenge yourself as you come across clues and activities, all with a scientific angle. The Koshland Science Museum is located on the corner of 6th and E Streets, NW.
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