This thesis investigates Open-world Continual Learning (OWCL), a learning paradigm designed for intelligent systems operating in non-stationary environments with persistent exposure to unknown data.

The Centre for Public Values & Ethics (CPVE) is an interdisciplinary, academic centre of expertise aiming to conduct and disseminate scientific research on normative issues in the public sector, in particular the fulfillment of public office and the planning, making and executing of public policy, both…

The research project MAXCAP: Maximizing the integration capacity of the European Union: Lessons and prospects for enlargement and beyond starts with a critical analysis of the effects of the 2004-2007 enlargement on stability, democracy and prosperity of candidate countries, on the one hand, and the…

Both within Leiden University and in the external partner universities PhD research is conducted which is directly or indirectly related to regional integration.

Citizens, journalists and scholars notice that foreign policy in, and of, the European Union, is ‘de-Europeanising’. Political scientist Daniel Thomas (Leiden University) offers a theoretical exploration of the likely implications. He expects that it will become more difficult for the EU to achieve…

Political Scientist Gisela Hirschmann (Leiden University) asks how international organisations can be compelled to comply with respect human rights. She finds that this is done through ‘pluralist accountability’: external third parties such as courts, NGOs, or regional organisations holding international…

NimbleAI aims at solutions for ultra-energy efficient and secure neuromorphic sensing and processing at the edge.

Published by Brill Nijhoff and written by leading experts including national judges, academics and practitioners East African Community Law is the first comparative as well as open access textbook on EAC law. The book provides a key resource for the research, teaching, and practice of EAC law. It also…

This article studies the perceived legitimacy of EU enforcement actions.

Crises like climate change and loss of biodiversity pose serious challenges for public governance, from the local to the global scale. With the Centre for Governance of Sustainability we contribute to addressing these governance challenges. Our focus is on how policy processes and governance practices…

Promotor: J. van der Greef; Co-promotor: E. van Wijk, M. Wang

We are experts in the fields of languages, cultures, history, arts, societies and philosophy. Together we cover almost all continents and time periods. Knowledge of these disciplines contributes to a humane, safe and sustainable world.

The Netherlands X-omics Initiative is a new facility as part of the National Roadmap for Large-Scale Research Infrastructures. It is partly funded by NWO with a total budget of 40 million euro. The project started on September 2018 and will last for ten years.

On 14 December, Jouke Tegelaar defended the thesis 'Single supervision, single judicial protection? Towards effective judicial protection in Single Supervisory Mechanism composite procedures'. The doctoral research was supervised by Matthias Haentjens and Willemien den Ouden.

This dissertation presents the results of the importance of creativity for ICT-students of Dutch universities of applied sciences (in Dutch: hogescholen), and the functioning of training courses that aim to promote creative abilities is highlighted.

This study, Calypso, The Trinidadian Experience, has sought to establish links between calypso music and the construction and maintenance of identities, and to locate the genre as a mechanism (or as part of a broader mechanism) that has exerted on-going social influence within Trinidadian society…

The role of domestic and wild resource exploitation in Bronze Age subsistence

The labour market has seen significant changes in recent decades, not least in terms of greater flexibility and digitisation. Leiden University is keen to prepare students for a working life in which flexibility, resilience and adaptability will be essential qualities. The university’s vision on teaching…

The master's specialisation Molecular, Cellular and Organismal Biology at Leiden University examines the molecular mechanisms underlying health and disease and how cells and organisms adapt to environmental factors.

On Wednesday 24 September 2025 Marija Šerić successfully defended a doctoral thesis and graduated.

Resilient future generations that will shape a healthy society.

The Europe Hub network currently spans over 60 researchers across 4 faculties at Leiden University. We especially foster thematic interfaculty research collaborations on a wide variety of societal challenges facing Europe. Here, you can read more about the four core thematic areas.

The main objective of the Telders International Law Moot Court Competition is to challenge students to excel in international law, consequently testing their creativity and powers of persuasion in a friendly competition. Students and academic staff throughout Europe consider participation to be a great…

What makes some international organisations more likely to succumb to crises where others manage to survive or even thrive? And what can international organisations do to become resilient and withstand existential challenges? Political Scientist Gisela Hirschmann (Leiden University) studied the example…

We are becoming ever more dependent on automation systems in our daily lives. Computer Science is more than programming; you integrate maths and logic into the development of systems and solutions that can be applied in all fields - from business to healthcare.

Our research examines mental health risk and resilience in young people. We do so by integrating cultural, social, cognitive and neurobiological factors and their interactions.

What mechanisms shape faculty members' perspectives on their teaching role in research intensive universities?

Demonstration experiments are a potentially powerful instrument to improve the micro-macro thinking of students in secondary education. Therefore we want to design a practical and generative approach to assist teachers to develop lessons with a demonstration experiment.

CML’s education programme aims at training (under)graduate and graduate students for integrated and multidisciplinary sustainability research and for better decision making in managing the world’s natural resources, environmental quality and biodiversity.

In the specialisation Occupational Health Psychology, part of the Master in Psychology, you will integrate knowledge of several disciplines in psychology, with a clear focus on workers and their work setting.

The Quantitative Pharmacology group headed by Coen van Hasselt focusses on the application of state-of-the-art quantitative pharmacometrics and systems pharmacology modeling combined with translational experimental models to develop personalized treatment strategies for antibiotics and to combat antimicrobial…

What are the possibilities of converting biowaste streams into value added products? What current and future technologies will enable this transition with minimal environmental and economic costs? The researchers in H2 steel project will enable the transition of sewage sludge into green hydrogen, steel…

Learn about PhD research at Leiden University’s Institute for Philosophy: information for current and prospective candidates, supervision, and academic development within the Faculty of Humanities.

You have been admitted to a PhD track at Leiden University. What do you need to know when you start conducting your PhD research?

How can the Safe and Sustainable by Design (SSbD) framework developed in the SSbD4CheM project facilitate the creation of safer and more sustainable chemicals and materials across various industries?

The Collective Experience of Empathic Data Systems (CEEDs) consortium developed novel integrated technologies that support experiencing, analysing and understanding of very large datasets.

By effectively integrating word-class scientific research and excellent education, you will become a professional astronomer with an internationally recognized degree.

Urban, Food, Water, Biodiversity, Resources and Energy: these are the main research topics of the Institute of Environmental Sciences. We always strive to be a global leader in our field. And make a real impact with both our research programmes.

The centre stimulates discussion and debate on the EU , European integration and the EU’s impact on European citizens. Special attention is given to the Netherlands, were support for EU integration seems to be in decline as evidenced by the rejection of the Constitution in Europe in 2005 and the forthcoming…

The Department of Business Studies provides business scientific education for students of the Faculty of Law, as well as for students from other faculties of Leiden University.

What is emotion in human and nonhuman animals? How do emotions get to expression and how do they impact on our interactions, our decisions to trust, distrust or cooperate? Why do we mimic and synchronise affective processes?

The interdisciplinary two-year Master Population Health Management will train you to tackle the challenges and contribute to a more integrated healthcare system.

Extensive research is being conducted at the Institute of Criminal Law and Criminology on developments in sentencing and punitive measures and how judges and other actors in the criminal justice system reach decisions. Another focus area is how punishments and measures are implemented and the effect…

Promotor: Prof.dr. M. de Jong, Co-Promotor: Dr. A.J. Heijboer

Quantum computing is a novel paradigm for computation, which is nearing real-world impact with the coming generation of limited, but nonetheless powerful quantum devices.