Krishnakumar Nangeelil and Zaijing Sun (both Health Physics and Diagnostic Sciences) recently gave oral presentations at in National Harbor, Maryland. Nangeelil's talk is titled, “Comparison of GEANT 4 Simulation and Experimental Measurements of CosmicGuard Background Reduction System,” and Sun’s talk is titled, “Developing a Remote Gamma Spectra Collection System for Nuclear Sciences.” Sun also served as the session chair in the instrument session of the conference.