During the week of 19-24 November 2007, SCL's Antun Balaz will visit the Department of Physics of the University of Duisburg-Essen. This is the continuation of the research activity with Dr. Axel Pelster, initiated at the recent PI07 conference in Dresden. During the visit, A. Balaz will give a talk entitled "Effective Actions Approach for Improving Numerical Calculations of Path Integrals".