University of Arkansas

1 – 11/2005 a 2/2006 – Professor Visitante junto ao Department of Physics – University of Arkansas.

2 – 01/2007 a 03/2007 – Professor Visitante junto ao Department of Physics – University of Arkansas.

3 – 01/2008 a 03/2008 – Professor Visitante junto ao Department of Physics – University of Arkansas.