Professor Helim Aranda-Espinoza from the Fischell Department of Bioengineering at the University of Maryland will open the PSE Fall Seminar Series on Friday, September 7, 2007. Professor Aranda-Espinoza will give his lecture titled, “Measurement of Traction Stresses in Cell Migration” at 3:30PM on Friday, September 7, 2007. The event is open to the public. All are welcome to attend.