On October 11th 2018, Johanna Beate Stumpf from the University of Oslo defended her dissertation for the degree of Ph.D. The title of the thesis was “Virtually Timed Ambients: A Calculus for Resource Management in Cloud Computing”. The adjudication committee was Professor Uwe Nestmann (Electrical Engineering and Computer Science, Technische Universität Berlin), Associate Professor Anna Philippou, (Department of Computer Science, University of Cyprus) and Associate Professor Jon Henrik Forssell (Department of Informatics, University of Oslo). Johanna was supervised by Professor Einar Broch Johnsen and Professor Martin Steffen. Her work looked at developing a method of formally modelling analysing the behaviour of processes running on virtual machines running on a cloud computing.