To accommodate as many talks as possible and allow participants to switch between sessions, all oral presentations will be 15 minutes in total, including 12 minutes for the actual talk and 2-3 minutes for questions and changing speakers, regardless of the number of presentations in the session.  Each oral presentation should take place sequentially at the start of the session.  Symposia presentations may allocate time differently.  At the time of the session if there are no-shows, the chair of the session will announce the no-show and maintain the sequence of presentations.  In other words, there should be no pauses in the session.  The chair will keep the time and take questions from the audience, and – together with a volunteer assigned to the session room – assist you with the technical equipment. You can find your session chair’s name in the program (Schedule at a Glance). Please arrive at the assigned room at least 15 minutes before the session start time (not your talk time) to introduce yourself to the chair as well as to the session volunteer.