ers are used to guide the development of therapeutic drug candidates. Dr. Hostetler’s research has led to the discovery and application of novel PET tracers for seven different CNS targets.

Samantha E. Kentis is a program manager at the U.S. Department of Homeland Security (DHS) Domestic Nuclear Detection Office’s (DNDO’s) National Technical Nuclear Forensics Center. She manages the National Nuclear Forensics Expertise Development Program; leads the Center’s interagency coordination efforts on national-level nuclear forensics policy and planning among the Departments of Defense, Energy, Homeland Security, Justice, State, and the Intelligence Community; and works closely with the State Department and others as the DNDO lead for nuclear forensics-related international activities. Prior to joining DHS, Ms. Kentis worked in the private sector primarily supporting nuclear forensics R&D efforts at the Defense Threat Reduction Agency. She holds a B.A. in foreign affairs from the University of Virginia and an M.A. in security studies from Georgetown University’s Edmund A. Walsh School of Foreign Service.

W. Frank Kinard is the Mebane Professor of Chemistry at the College of Charleston in Charleston, South Carolina. His teaching responsibilities include nuclear chemistry, environmental chemistry, instrumental analysis, and quantitative analysis. He received his B.S. degree in chemistry from Duke University and his Ph.D. in analytical chemistry from the University of South Carolina. He was an Atomic Energy Commission Post-Doctoral Fellow at Florida State University and a research associate in chemical oceanography in the Department of Marine Sciences of the University of Puerto Rico in Mayagüez. His most recent research activities have centered on the application of inductively coupled plasma—mass spectrometry to the analysis of high-level wastes at the Savannah River Site. Currently, he is serving as the director of the “Summer School in Nuclear Chemistry” sponsored by the U.S. Department of Energy and the American Chemical Society at San José State University. He is the secretary of the Division of Nuclear Chemistry and Technology of the American Chemical Society. He has spent his summers for the last two decades as a senior research scientist in the Chemical Technology Division of the Oak Ridge National Laboratory, guest scientist in the Nuclear Chemistry Division of the Lawrence Livermore National Laboratory, and as a visiting scientist at the Savannah River Ecology Laboratory and the Analytical Development Section of the Savannah River Technology Center. He has been a faculty member at the College of Charleston since 1972 and is the author of more than 35 technical publications. Dr. Kinard is an analytical chemist who has worked for the past 20

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