GREENSBORO, North Carolina, July 1 (TNSres) -- The University of North Carolina Greensboro campus issued the following news: As a little girl in Sri Lanka, Hemali Rathnayake loved science and dreamed of a better world. As a grown woman in Greensboro, Dr. Hemali Rathnayake loves science and is changing the world for the better. Rathnayake is a UNCG associate professor at the Joint School of Nanoscience and Nanoengineering on East Gate City Boulevard, where she and the graduate students she tea  more