Perderam-se as animações (de slides e humanas), mas mesmo assim acho que dá para a seguir.
==================================================================== On May 28th, I was at Alfragide, near Lisbon, at the Air Force Headquarters, participating in a seminar on teaching and training at the military. The organizers kindly made a slidecast of my presentation about "immersive on-line environments", with its recording. The animations (slides and humans) where lost, but I believe it is quite adequate. While it is in Portuguese, you can find a transcript there, so just use an online translator or ask a Portuguese-speaking friend.