1. School of Cognitive Science, Institute for Research in Fundamental Sciences, P.O. Box 1954851167, Tehran, Iran
2. Department of Physics, Institute for Advanced Studies in Basic Sciences, Zanjan 45137-66731, Iran
3. Faculty of Natural Sciences and Mathematics, University of Maribor, Koroška cesta 160, 2000 Maribor, Slovenia
4. Center for Applied Mathematics and Theoretical Physics, University of Maribor, Mladinska 3, 2000 Maribor, Slovenia
5. Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan