On 9 January 2019, Willem van der Muur defended his thesis 'Land rights and the forces of adat in democratizing Indonesia'. The doctoral research was supervised by Prof. dr. A.W. Bedner and Prof. dr. J.M. Otto.

In this research group, headed by Prof. Erik Danen, the aim is to unravel cellular signaling mechanisms in normal and diseased cells, with a long-standing interest in cell adhesion signaling. In complex multicellular organisms such as ourselves, a division of labor emerges where different tissues and…

FSW Professor Jan Dirk Blom has written a book on Alice in Wonderland syndrome. This is the first scientific book on this rare disorder, which was first described in 1955 by the British psychiatrist John Todd. Todd was inspired by the famous book by Lewis Carroll, in which Alice experiences all kinds…

This thesis aims at contributing to our understanding of the semantic and prosodic properties of object foci in Greek, employing theoretical and experimental tools.

How do Central African refugees navigate through uncertainty in a new and hostile environment in the DR Congo?

On Thursday 1 December 2016 at 13.45 hrs, Francisco Sepulveda Ramirez will defend his doctoral thesis ‘Residence in Tax Treaties' at the Academy Building of Leiden University. Supervisor is Professor F.A. Engelen.

On 11 June 2020, Sabine Witting defended her thesis 'Child Sexual Abuse in the Digital Era: Rethinking Legal Frameworks and Transnational Law Enforcement Collaboration'. The doctoral research was supervised by Prof. J.J. Sloth-Nielsen and Prof. S. van der Hof.

On the 12th of May, Stefan Norbruis successfully defended a doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Stefan on this achievement!

Just published: Nederlands internationaal privaatrecht Special issue: Private international law and finance

The major and ultimate aim of metabolomics is to obtain an answer to a specific biological or clinical question.

The International Labour Organisation (ILO) was established in 1919 based on the premise that social justice is a condition for lasting peace. On February 2019 the ILO celebrated its 100th anniversary with an international symposium to consider the future of the ILO.

If you have the ambition to continuously develop and grow in your work, then Leiden University is an attractive employer for you.

ASLU 13

Antibiotics are a class of medicine most people take for granted. But pathogenic bacteria are becoming more and more resistant to our antibiotics, and this poses a great challenge for future treatments. There is thus a great societal need to identify new molecules that can address new targets and be…

The company Azafaros was established in 2018 to translate innovative science from Leiden University and Amsterdam University Medical Center into novel disease-modifying treatment modalities for rare genetic metabolic disorders such as lysosomal storage diseases.

Essays in Archaeology and Assyriology Dedicated to Diederik J.W. Meijer in Honour of his 65th Birthday

Uncover novel antimicrobials with prospective health benefits for sea turtles.

In this article, Dimiter Toshkov aims to explains the gender gap in COVID-19 vaccination attitudes.

The Rosalind Franklin Square, also known as the campus square, is a green meeting place for students, staff, and city residents. It’s where the university, the business community, and the city of Leiden come together.

Governing Cyberspace: Behavior, Power and Diplomacy is based on a selection of papers presented during The Hague Program for Cyber Norms' inaugural conference Novel Horizons: Responsible Behaviour in Cyberspace from 5-7 November 2018 in The Hague. The volume is edited by Dennis Broeders and Bibi van…

On 20 September 2023 Mark van de Water successfully defended a doctoral thesis and graduated.

The glycosylation reaction is a pivotal reaction in creating new and complex oligosaccharides.

This project aims at investigating the syntactic role of focus in ellipsis across languages.

This thesis aims to demonstrate how the achromatic nature and design flexibility of liquid-crystal optics can be used to improve high-contrast imaging instruments to facilitate detailed exoplanet characterization.

Enabling volume-restricted metabolomics using next-generation microscale analytical tools.

This book aims to unravel some of the mysteries surrounding this exceptional group of larger-than-life Bronze Age blades.

On 12 November 2019, Larissa Koupriuchina defended her thesis 'Judgmental Adjustments in Revenue Management'. The doctoral research was supervised by Prof. J.I. Van der Rest.

Dutch knowledge institutions are taking steps to recognise and reward open science. On 13 December, the Open Science NL Steering Board approved a total of 1.2 million euros in grants to 23 institutions. The Centre for Science and Technology Studies (CWTS) leads the national coordination of the local…

There is little evidence of the routes connecting Amerindian communities in the Caribbean prior to and just after 1492. Uncovering possible canoe routes between these communities can help to explain the structure, capabilities, and limitations of the physical links in their social and material networks.…

In recent years, and especially since the ‘Arab Spring’ of 2011, a growing body of research, media reporting, and scholarly literature has focused on the role of ‘Arab youth’ as the drivers of social and political movements across the Middle East and North Africa.

Quantum Delta NL, a research programme in which Leiden University participates, has been awarded 615 million euros from the National Growth Fund to help develop the Netherlands into a top player in quantum technology.

Blended and hybrid teaching are presented as crucial in promoting teaching innovation, as well as more flexible study approaches allowing students to develop their own tailor-made study programmes. While the strategy document focuses on the positive aspects of digital teaching tools, no systematic study…

Peter Flach is Professor of Artificial Intelligence at the University of Bristol. An internationally leading scholar in the evaluation and improvement of machine learning models using ROC analysis and calibration, he has also published on mining highly structured data, on knowledge-driven and explainable…

Leiden University is constructing a new building for the Faculty of Science in three phases, featuring state-of-the-art research and teaching facilities. The second phase was completed in 2024 and includes, among other things, a stunning entrance with a mathematical touch. With this development, the…

Cody Bahir defended his thesis on 1 June 2017.

Under what circumstances do paramilitary groups limit their use of political violence? This article examines the use of political violence by the PIRA.

The Laiseang archiving project ensures the preservation of unique records of languages in the region which have been gathered by more than two dozen linguists at, and in collaboration with Dutch universities over the last 40 years.

In this article, the authors summarise the literature on the effects of multilevel governance on governments’ policy responses to Covid-19.

The overarching clinical aim of this thesis was to improve pharmacological pain management by characterizing the pharmacodynamics of analgesics.

On 23 juni 2019, Zygimantas Juska defended his thesis 'The Role of Collective Redress Actions to Achieve Full Compensation for Violations of European Union Competition Law'. The doctoral research was supervised by Prof. dr. T.R Ottervanger.

The Hazelhoff Centre for Financial Law provides academic teaching and performs research in the field of financial law.

Stam defended his dissertation ‘Freedom of speech and the suppression of discrimination in the Netherlands: a constitutional-developmental approach’ on 12 November 2025. The doctoral research was supervised by Afshan Ellian and Bastiaan Rijpkema

Combining cutting-edge quantitative approaches with more traditional book history approaches, this new book offers the first history of medieval manuscript destruction in England from the medieval period to the present.

Are you interested in participating in a PRE-Class? Then you need to write a motivation letter and complete an application form. Make sure you have permission from your school to participate.

Managing scarcity to serve the public interest is a classic government task. An important way to execute this task is by allocating individual rights that are only available in limited quantities, such as CO2 emission allowances, gambling licences, subsidies, radio frequencies, public contracts and…

This ethnographic research is a joint project with the Institute of Cultural Anthropology and Development Sociology, Leiden University, and KITLV/Royal Netherlands Institute of Southeast Asian and Caribbean Studies. It aims to understand the experiences of social inclusion and exclusion of female migrants…

This thesis describes the synthesis and biochemical evaluation of a variety of cyclophellitol based activity-based probes and inhibitors targeting various endo- and exo-acting retaining glycosidases. In the last two decades a variety of probes and inhibitors for (hemi)cellulose degrading enzymes have…

Synthetic or artificial cells are vesicles, often lipid vesicles, with wide ranging applications from drug delivery to nanoreactors in biocatalysis. We are developing polymer-lipid hybrid vesicles for applications in compartmentalised biocatalysis, in which the polymer has been shown to greatly enhance…

Artistic research has come of age, and with it the Orpheus Institute. Founded twenty years ago, the Institute’s purpose from the start has been to pursue research through the practice of musicians.