Professorship for Social and Economic History at the University of Duisburg-Essen

Professorship for North American Cultural Studies at the University of Duisburg-Essen

Director of the Institute for Advanced Study in the Humanities Essen

Professorship for British Literature and Culture at the University of Duisburg-Essen

Professorship for Communication Science at the University of Duisburg-Essen

Professorship for Literature and Media Studies at the University of Duisburg-Essen

Professorship for Political Theory with a focus on Politics and Religion at the Westfälische Wilhelms-Universität Münster

Professorship for Islamic Studies and Arabic Studies at the Westfälische Wilhelms-Universität Münster

Professorship for International Relations and Sustainable Development at the Westfälische Wilhelms-Universität Münster

Professorship for Civil Law, Philosophy of Law and Medical Law at the Westfälische Wilhelms-Universität Münster

Professorship for Ancient History at the Westphalian Wilhelms University Münster
 

Professorship for Public Law and Constitutional Theory at the Westphalian Wilhelms University Münster

Professorship for Communication Science at the Westphalian Wilhelms University Münster

Professorship for Political Education and Didactics of Social Sciences at the University Augsburg.

Professorship for Comparative Policy Research and Methods of Empirical Social Research at the Westfälische Wilhelms-Universität Münster

Professorship for Contemporary History at the Ruhr-University Bochum

Professorship for Political Science at the Ruhr-University Bochum

Professorship for Didactics of History and Public History at the Ruhr-University Bochum

Professorship for Public Law, Social and Health Law and Philosophy of Law at the Ruhr-University Bochum

Professorship for Practical Philosophy at the Ruhr-University Bochum