Professor, Department of Communication and Media Research, University of Zurich

Associate Professor, Canada Research Chair, University of British Columbia

Heller School for Social Policy, Brandeis University

Professor of Adult Education, Texas State University

Netherlands Interdisciplinary Demographic Institute & VU University, Amsterdam

University of Queensland

Emeritus Professor of Medicine, Boston University

Professor of Physical Activity and Health, Ghent University

Keele University

Professor, Department of Occupational Science & Occupational Therapy, University of …