($400--for the best poster by a graduate student)


     Dr. Chung Soo Yoo, Adjunct Associate Professor in the Department of Medicinal Chemistry and Research Associate in the Department of Crystallography of the University of Pittsburgh, was killed the Korean Airlines Flight 007 disaster of August 31, 1983.  Dr. Yoo came to the U.S. from Korea in 1965, obtained his M.S. degree in Chemistry at Rice University in 1967, his PhD in Crystallography at the University of Pittsburgh in 1971, and became a U.S. citizen. He was a member of the Biocrystallography Laboratory of the Veterans Administration Medical Center in Pittsburgh.
     Dr. Yoo was one of the most likeable crystallographers among students and colleagues in Pittsburgh, and has always been very enthusiastic about the Pittsburgh Diffraction Conference.
     The Chung Soo Yoo Award, established by the Pittsburgh Diffraction Society in his honor, is given to the graduate student presenting the best poster at the annual Conference.