Observers and commentators

Sabine EHRHART, University of Luxembourg
Mervyn HARTWIG, London, UK
Tony JUDGE, Brussels, Belgium
Ruben NELSON, Foresight Canada, Canada
Svetlana PISKLAKOVA, Omsk State Medical Academy and Omsk F.M. Dostoevsky State University, Russia
Varadaraja V. RAMAN, Rochester University, USA
Niels WEIDTMANN, Tübingen University, Germany