Christina Karakizi, Manchester Metropolitan University, United Kingdom; Akpona Okujeni, Humboldt-Universität zu Berlin, Germany; Eleni Sofikiti, Vasileios Tsironis, Athina Psalta, National Technical University of Athens, Greece; Patrick Hostert, Humboldt-Universität zu Berlin, Germany; Konstantinos Karantzalos, National Technical University of Athens, Greece; Elias Symeonakis, Manchester Metropolitan University, United Kingdom