**About the Editors**

**Michal Hnatiˇc** (Prof., Dr.Sc.) is a Full Professor of Physics in the Faculty of Science of P.J. Safarik ˇ University. He received his Master's and Ph.D. degrees in physics at the Leningrad State University in Leningrad (1983 and 1987, respectively, supervisor prof. A.N. Vasil'ev) and the highest scientific degree, Doctor of Science (Dr.Sc.), at the Comenius University in Bratislava (2007). His scientific interests are in quantum field theory methods, including their application in complex systems of classical physics (critical and stochastic dynamics, percolation, developed turbulence). He supervised 12 successfully defended Ph.D. students. He is a co-author of more than 150 scientific publications, including more than 80 in WOS or SCOPUS indexed international journals. He is participating in long-term successful international collaboration with colleagues from Helsinki University, Finland; Sankt-Petersburg State University, Russia; Joint Institute for Nuclear Research Dubna, Russia; and Uzhhorod National University, Ukraine.

**Jaroslav Antoˇs** (Dr.) graduated in 1974 in physics (Safarik University, Kosice, ˇ CSFR). From 1976 ˇ until now he has worked at the Institute of Experimental Physics (IEP), SAS, in Kosice (Slovakia). ˇ In 1976, he was delegated as a visiting scientist to the Joint Institute for Nuclear Research in Dubna, USSR. He did work there until 1981 and was involved in an experiment called HYPERON. In 1986, he went to DESY for a short visit. This short visit helped to establish collaboration between Czecho-Slovak institutes and H1 experiment at DESY. This was the first official collaboration of HEP Czech and Slovak groups in former Czecho-Slovakia on an experiment at DESY! In 1989, he took a position for one year as a scientific associate at CERN. He did work in the group of Professor Willis on the analysis of data from the HELIOS/1 experiment. Established contacts later helped him to start the official collaboration of the group in IEP with the HELIOS/3 experiment. This was the first official collaboration of the HEP group in former Czecho-Slovakia on an experiment at CERN! The aim of the HELIOS/3 experiment was to study dimuon production at 200 GeA in pW and SW reactions. His analysis proved the existence of a nontrivial effect in SW which cannot be explained by simple extrapolation from pW. This effect was quoted in support of the existence of quark–gluon plasma announced at CERN in the year 2000. In 1992, he was invited by Academia Sinica (Taiwan) to help to organize an experimental physics group at the Institute of Physics, Academia Sinica, Taipei. The group was quickly established and recognized. In January 1993, this group was accepted to the CDF collaboration at FNAL, USA. The Taiwan group was active in the search for the top quark in dilepton decay mode; after the discovery of the top quark, the main focus was on the determination of top quark mass in this channel. In mid-1995, Dr. Antos returned to his home institute (IEP). Even from ˇ Slovakia, he continued to collaborate with colleagues at CDF in the framework of the Taiwan group. He developed several original methods for top quark mass determination in the dilepton channel. In 2006, Slovakia was officially accepted to the CDF collaboration. The physics focus of the Slovak group is a study of top quark properties, specifically top quark mass and charge. He is the author or co-author of more than 1200 scientific papers published in recognized scientific journals and cited over 45,000 times.

**Juha Honkonen** (Dr.) is a Senior Scientist at the National Defence University, Helsinki, Finland, and an Adjunct Professor in Theoretical Physics at the University of Helsinki, Finland. He received his M.Sc. degree in physics in 1980 and earned his Ph.D. in theoretical and mathematical physics in 1984 at the Leningrad State University under the direction of the late Alexandr Nikolaevich Vasilev. He has been working as a researcher and instructor at the Nordisk Institut for Teoretisk Atomfysik (NORDITA) in Copenhagen, Denmark, and at the Helsinki University of Technology. Dr. Honkonen has authored and co-authored over 80 peer-reviewed scientific journal articles and numerous other publications in quantum statistical physics, theory of critical phenomena, stochastic dynamics, operations research, and military technology. He has been a keynote speaker and an invited speaker at several international and national conferences and meetings. He is the author of five university textbooks.
