Health/Science calendar

MONDAY, OCTOBER 6

In Pursuit of a Sustainable Energy Future John W. Rowe, chairman and chief executive officer of Exelon Corporation will speak at Harvard University. He is a member of the boards of directors of Sunoco and the Northern Trust Company. At 5 p.m. at Harvard University's Science Center Lecture Hall D, 1 Oxford Street. Call 617-495-8883.

TUESDAY, OCTOBER 7

String Theories Gallery Talk with Artists Guest speaker Hong Liu, associate professor of physics at MIT, will present his research in String Theory. At 1 p.m., at 75 Arlington St. Go towww.suffolk.edu/nesad/gallery.