All Topics (August 26 through October 31) Friday, September 11 11:30 AM Prof. Kim Stachenfeld, Columbia University Wednesday, September 23 12:15 PM Dr. Mark Wagner, National Institute of Health Wednesday, October 7 12:15 PM Prof. Abhilasha Joshi, National Center for Biological Sciences, Bangalore, India Wednesday, October 14 12:15 PM Prof. Randolph Helfrich, Yale University Wednesday, October 28 12:15 AM Prof. Kathleen Cullen, John Hopkins University