Richard J. Cebula, ; Sadullah Çelik, Marmara University—Turkey ; Gary Clayton, Northern Kentucky University—USA ; Christopher K. Coombs, Louisiana State University- Shreveport—USA ; Paul L. Hettler, California University of Pennsylvania—USA ; Karen Leppel, Widener University—USA ; José-María Montero Lorenzo, University of Castilla-La Mancha—Spain ; Waclawa Starzynska, University of Lodz—Poland ; M. Peter van der Hoek, Erasmus University—Netherlands and Dorota Witkowska, Warsaw University of Life Sciences—Poland