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KNOXVILLE — The University of Tennessee Science Forum resumes its series of public scientific lectures this spring semester.

The presentations, held Fridays at noon in Dining Rooms C and D of Thompson Boling Arena, inform audiences about new developments in research and spur discussion of current scientific issues.

The UT Science Forum continues the tradition of the Knoxville Science Club, which began hosting scientific talks locally 70 years ago.

This semester’s scheduled dates, speakers and topics are:

Jan. 23, Dr. Gary Smith, professor and director of Nuclear Medicine, UT Medical Center, “Radiopharmaceuticals for Brain Imaging.”

Jan. 30, A.C. Wilson, executive vice president and founder, IdleAire Technologies Corporation, “18-Wheelers and Clean Air: From Dream to Reality.”

Feb. 6, Dr. Kenneth Ferslew, professor of Pharmacology and director of Toxicology, East Tennessee State University College of Medicine, “Adulterating Urine: Ways to Mask the Results of Your Drug Screen.”

Feb. 13, Dr. John Collier, professor and head, Chemical Engineering, “Making Scotch: Its Engineering and Chemistry.”

Feb. 20, Bern Tryon, director of Herpetology, Knoxville Zoo, “Restoring the Bog Turtle to Tennessee.”

Feb. 27, Dr. Joseph Chun, assistant professor, UT Graduate School of Medicine, “Ultrasound Liposuction for Breast Reduction.”

March 5, Dr. Geoffrey Greene, research scientist, Oak Ridge National Laboratory, UT professor of Physics, “The Subatomic World of the Neutron.”

March 12, No meeting — spring break.

March 19, Col. Robert Walsh, professor of Military Science, “Special Operation Forces in Today’s Army.”

March 26, Frank Munger, senior writer and head, Oak Ridge Bureau, Knoxville News Sentinel, “Stories from a Science Reporter’s Notebook.”

April 2, Dr. David Irick, research assistant professor, Mechanical, Aeronautical, and Biomedical Engineering, “Automotive Engineering Research at UT.”

April 9, No meeting — spring recess.

April 16, Dr. Peter Liaw, Ivan Racheff Professor,Materials Science and Engineering, “Thermography Detection of Fatigue Damage in Materials.”

April 23, Dr. Jake Weltzin, assistant professor,Ecology and Evolutionary Biology, “Climate Change: Fueling the Fire of Biological Invasions?”