Emeritus Professor of Physics, Queens University.

Former Senior Lecturer in Theoretical Physics, University of Glasgow.

Directeur de Recherche Emérite CNRS, Institut de Biologie Structurale .

Director, STFC UK Astronomy Technology Centre.

Professor of Physics, University of Edinburgh.

Professor of Theoretical Physics, Heriot-Watt University.

Former Professor of Natural Philosophy, University of Glasgow.

Secretary and Treasurer, Carnegie Trust for the Universities of Scotland.

Professor of Experimental Physics, University of Basel.

Professor of Signal Processing and Communications, University of Athens.

Executive Director, STFC National Laboratories, Science and Technology Facilities Council (STFC).

Professor of Astrophysics, University of Edinburgh, Institute for Astronomy.