The NW section of the American Physical Society will meet October 20-22 at Oregon State University. See http://physics.oregonstate.edu/NWAPS2011 for details. Morning session: 8:30AM - 9:06AM Halliday-Resnick Plus 50, Kenneth Krane 9:06AM - 9:42AM AMS Experiment on the International Space Station, Andrei Kounine 9:42AM - 10:18AM Can Accelerators Meet the Medical Isotopes Needs of the World, Thomas Ruth 10:48AM - 11:24AM Topological Quantum Numbers and their Importance for Precise Measurements, David Thouless 11:24AM - 12:00PM New Frontiers in Optical Science: Terahertz Spectroscopy ot Two Dimensional Systems, Yun-Shik Lee Afternoon sessions: Session H1 Physics Education and Outreach Chair: Corinne Manogue, Oregon State University Room: LaSells Stewart Center Agriculture Science Room Invited Speakers: David Roundy, Mary Bridget Kustusch, Ted Vosk Session H2 Astrophysics, Cosmology and Gravity Chair: James Imamura, University of Oregon Room: LaSells Stewart Center Agriculture Production Room Invited Speakers: Thomas Quinn, Greg Bothun Session H3 Biophysics, Fluids and Fields Chair: Ethan Minot, Oregon State University Room: LaSells Stewart Center Agriculture Leaders Room Invited Speakers: Jens H. Gundlach, Paul Wiggens Session H4 Condensed Matter II Chair: Yves Izderda, Montana State University, and Janet Tate, Oregon State University Room: LaSells Stewart Center Construction and Engineering Hall Invited Speakers: Oksana Ostroverkhova, Michael Zwolak