This open access volume surveys the state of the field to examine whether a fifth wave of deterrence theory is emerging. Bringing together insights from world-leading experts from three continents, the volume identifies the most pressing strategic challenges, frames theoretical concepts, and describes…

What is the role of neuronal emotional reactivity in the intergenerational transmission of abuse?

Many members of the Dutch Royal Family have studied at Leiden University and several have been awarded an honorary doctorate. In 1987, current King Willem-Alexander followed in the academic footsteps of his mother Beatrix, his aunt Margriet and his grandmother Juliana, and started his History studies…

The cellular metabolism of immune cells constitutes an important part of their proper function and activation. Using T cells as an example, this phenomenon is highlighted by the metabolic reprogramming that occurs in these cells upon activation.

Open access, online talks on African Sign Language Studies, in International sign and English

How is social cognition shaped by our knowledge of language and stories?

Promotor: Promotor: W.Th.F. den Hollander, Co-promotor: V. Sidoravicius.

Discover how to prepare for the MSc The Politics of Artificial Intelligence at Leiden University: orientation activities, academic resources, visa guidance, and student support services.

Prepare for your MSc in Democracy and Representation at Leiden University: orientation week, student card & LU-card setup, study resources, and arriving tips for international & Dutch students.

Prepare for the MSc in Nationalism, Ethnic Conflict and Development at Leiden University with orientation programmes, academic resources, visa guidance, and student support.

Prepare for your MSc Political Theory: Legitimacy and Justice at Leiden University with orientation activities, academic resources, visa guidance, student support and tips for arriving in the Netherlands.

Regional Federal Studies carefully reviews, selects and publishes high-quality articles dealing with various aspects of regionalism and federalism crossing substantive, thematic, geographical, theoretical, and methodological boundaries.

The 2025 Dutch Parliamentary Study is a comprehensive survey of views and experiences of members of the Senate and House of Representatives. This survey, conducted by Leiden University’s Institute of Political Science, is part of a long and rich tradition of parliamentary surveys in the Netherlands.…

Central in coordination and organometallic chemistry is the synthesis of new chelating ligands, the synthesis and characterization of metal complexes with these ligands, and the study of their properties. An important goal in my research is to create understanding of the relation between the structures…

Prediction of human (CNS) target site concentrations in health and disease In the vision of Prof. de Lange we will only be able to predict human (central nervous system, CNS) target site concentrations and effects if we perform systematic, condition-dependent, integrative, and strictly quantitative…

“Europe must look […] southward, where the global majority resides. The BRICS countries alone represent almost 50% of the world economy and a quarter of the world trade, it is where the youngest populations lives, with an enormous amount of creative energy, something that is often lacking in the northern…

LUCIS promotes high-quality research on Islam and Muslim societies and actively communicates the insights and findings of that research to the larger public.

The Leiden Center for the Study of Ancient Religions (L*CeSAR) facilitates the integration of scholarly expertise and resources, promoting interdisciplinary collaboration and intellectual exchange among researchers of ancient religions, both within Leiden University and in the broader academic commu…

Nobuaki Murai defended his thesis on 24 January 2018.

Social anxiety runs in families, but the neurobiology underlying this genetic vulnerability is until now largely unknown. The unique Leiden Family Lab study on Social Anxiety Disorder (LFLSAD) aims to broaden our knowledge with respect to this genetic susceptibility.

This edited volume suggests promising new avenues of research in analyzing coalition politics. Written by a group of leading scholars, the book clarifies a number of concepts too often taken for granted in the existing literature, performs theoretically-driven and methodologically novel comparative…

Promotor: Prof.dr. E.F. Smets, Co-promotores: Dr. B. Gravendeel, F. Pupulin

On the 12th of December, Eleanor Dutton successfully defended her doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Eleanor on this achievement.

This dissertation investigates A'-dependencies in Standard German, Zurich German and Dutch where the dislocated constituent is indirectly, i.e. not transformationally, related to the position where it is interpreted. The analysis is carried out within the Principles & Parameters framework.

In this thesis, bioorthogonal chemistry is combined with correlative light-electron microscopy to selectively label and study pathogenic intracellular bacteria within the host immune cell.

Bacterial chemosensory arrays are protein assemblies that are the key structural and functional component for motile bacteria to sense their internal or environmental chemical signals.

The Centre for the Study of Political Parties and Representation (CSPPR) aims to serve as an interdisciplinary platform for scholars of Leiden University for research focusing on the historical and contemporary operation and functioning of political parties and political representation, with a particular…

From 1 August 2018, Alanna O'Malley was appointed as Chair of United Nations Studies in Peace and Justice, focusing on the ‘lesser-known actors’ of the UN: women, the youth, the agents of informal diplomatic networks within the UN and actors from the Global South. This Special Chair has been created…

As of 1 November, Laura Heitman has been appointed full Professor of Molecular Pharmacology at the Leiden Academic Centre for Drug Research (LACDR). Heitman has been working on the understanding and improvement of drug-receptor interactions in early drug discovery. ‘My ultimate aim is to make medicines…

The Faculty of Medicine

In the hunt for a vaccine against cervical cancer, fundamental knowledge about the immune system and organic chemistry have been brought together and have already resulted in a vaccine that is now being tested in clinical trials. Scientists are now working hard on an improved variant.

This book presents concrete solutions for managing the legal risks distorting the development of various areas of EU law. It pursues an innovative and effective approach to identify legal risks, their causes at the EU level and their impacts on the functioning of the Union and its Member States. It…

Despite an increased EU role in the preparedness, monitoring and coordination of health emergencies over the past two decades, Member States’ responses to the first wave of COVID-19 were surprisingly uncoordinated. In light of calls to improve cooperation regarding future health emergencies, this article…

The CIGR comprises research groups from the Leiden Institute of Chemistry (LIC), the Leiden Academic Centre for Drug Research (LACDR) and the Leiden Institue of Physics (LION).

How did dynastic organization – that it, the employment of non-ruling family members and the development of dynastic traditions and concepts – influence state formation in both Catholic Europe and Muslim West-Asia?

This dissertation examines whether a cochlear implant provides congenitally deaf born children with sufficient auditory input to acquire low salient and syntactically and semantically complex functional items such as personal pronouns compared to their hearing peers.

Key publications of the Medical Systems Biophysics and Bioengineeringgroup (Mashaghi Lab)

Research at the BIOSYN group is comprised of the following research themes:

PhD defence