Mar.- July 2002 Visiting Professor. Institute of Chemical Process Fundamentals. Academy of sciences Czech Republic Prague 6
July - Sept 2002 Visiting Professor, Dept. of Physics and Astronomy, University College, London, England.
March- July 2003 Visiting Professor, Dept. of Biochemistry, Kansas State University, Manhattan, Kansas. 66506, USA
July- Nov 2003 Visiting Professor, Dept. of Chemistry, Duquesne University, Pittsburgh, PA, 15282, USA
December 2003 Visiting Professor, Dept. of Chemistry, Australian defense Forces Academy, Canberra, Australia.
Jan-Mar 2004 Visiting Professor, Dept. of Chemistry, University of the Philippines, Diliman, Quezon City, Philippines.
Sept 2004 - July 2006 Visiting Professor, Dept. of Physical Chemistry University of Burgos, Burgos, Spain
Summer 2006 Visiting Professor, Dept. of Computational Molecular Biophysics, University of Heidelberg, Heidelberg, Germany
Oct 2006- Oct 2007 Visiting scholar, Center of Theoretical Biological Physics, University of California San Diego (UCSD), La Jolla, CA
Oct 2007 -June 2008 Visiting researcher, National Institute of Standards &
Technology (NIST), Maryland, USA
July 2008- June 2009 Division of Physical Chemistry, Arrhenius
Laboratory, Stockholm University,
Stockholm, Sweden
June 2009- Present: The Hebrew University of Jerusalem,
Givat Ram, Jerusalem, Israel