Buitelaar argues that IOs micro-level discourse adapts imperfectly to macro-level changes, balancing adaptation to pressures with commitment to values.

Damien Van Puyvelde and Paul Oling explore how government intelligence agencies can effectively collaborate with the private technology sector to meet their evolving technological needs, focusing particularly on emerging technologies such as artificial intelligence (AI) and quantum computing.

Jurisprudence is a philosophical introduction to the law. This subject is taught by the department of Jurisprudence.

We are dedicated to creating a thriving open knowledge community. This challenges us to innovate and take action. Therefore, Leiden University commits to:

In this article Vanessa Newby discusses how the ANZUS states of United States, Australia, and New Zealand that sit on the fringes of the Asia-Pacific, are increasingly using their armed forces to deliver Humanitarian Aid and Disaster Response (HADR) as a way of engaging with the region.

The Hague Journal of Diplomacy (HJD) is the world’s leading research journal for the study of diplomacy and was founded in 2005.

This page provides an overview of the MSc International Organisation specialisation at Leiden University (The Hague). Includes curriculum, thesis seminar, small-group teaching and internship possibilities.

This thesis explores squaramide-based supramolecular polymers and hydrogels, enhancing their mechanical strength for 3D cell culture.

A plasma is an ionized gas with very low electrical resistivity. As such, magnetic field lines are 'frozen in' and move with the fluid. Magnetic field lines that are linked, knotted and tangled, cannot be undone by the fluid motions.

Drought, exacerbated by climate change, is becoming a serious issue in Dutch cities. This affects the availability of water for people, nature, and infrastructure. The Thirsty Cities project is the first large-scale initiative to investigate this phenomenon, involving dozens of knowledge partners and…

Constitutional and administrative law is a specialisation of the master’s programme Rechtsgeleerdheid (Law) at the renowned Leiden Law School of Leiden University. This programme looks closely at the interaction between national and European law.

PhD defence

PhD defence

PhD defence

Sense Jan van der Molen is vanaf 1 maart de nieuwe wetenschappelijk directeur van het Leiden Instituut voor Onderzoek in de Natuurkunde.

On the occasion of the Workshop organized last July to officially launch the Leiden Chinese Queer Collection (LCQC), the National Museum of Taiwan Literature (NMTL) donated 30 titles of Taiwanese LGBTQ+ literature to support this initiative. These works where published between 1971 and 2022 by authors…

Evolutionary and ecological interactions affect species on genetic and phenotypic levels. This theme aims to understand these processes at multiple levels: from molecules to genomes to populations and to communities. Our research focuses on evolutionary responses to anthropogenic change, the role of…

Young Academy Leiden wants to bring together young academics. After all, it is not that easy in practice to meet peers outside your field. With inspiring and fun Faculty lunches, the organisation strives to connect young researchers. The most recent, hosted at the Faculty of Social and Behaviourial…

Traditional leaders in many African countries have regained some of their former powers. Politicians and companies in some of these countries manage to gain access to valuable land via these leaders, at the cost of the local population. This is the message of Professor of Law, Administration and Development…

Hans-Martien ten Napel has been awarded a Research Fellowship in Legal Studies at the Center of Theological Inquiry (CTI) at Princeton University, USA, which enables him to be in full-time residence at CTI for the academic year, 1 September 2014 to 31 May 2015.

There are effective treatments for people with autism, says Wouter Staal, professor of Autism Spectrum Disorders, in his inaugural lecture on 4 May. However, it is not yet clear which treatment is most effective for which individual.

The free AI and Ethics course (in Dutch) is available online to anyone who wants to find out more about the ethical implications of artificial intelligence. One of the eight experts featured in the course is Professor Reijer Passchier. ‘Artificial Intelligence is spreading so fast and has such an impact…

On 8-10 July, 2024, public law scholars from around the world gathered in Madrid for the annual conference of the International Society of Public Law – the ICON-S, hosted this year by IE University. The theme of the conference “The Future of Public Law: Resilience, Sustainability, and Artificial Intelligence,”…

The Economist published an article about a working paper about the effects of democratic elections on satisfaction with democracy. The paper was written by Dimiter Koshkov, Associate Professor at the Institute of Public Administration and Honorata Mazepus, Assistant Professor at the Institute of Security…

Leiden biology students have determined the origin of exotic alpine newts in the Netherlands using a special DNA technique.

Analysing the ways in which immigration structurally challenges and changes the organization and conceptual boundaries of national welfare states.

The International Criminal Law programme prepares you for a successful career within a multidimensional field, in Europe or around the world.

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.

Globalisation leads to more contradictions between national and international tax norms. It therefore seems necessary to revise the fiscal legislation. This is not only due to the problem posed by multinationals, but also to changing norms regarding tax burden distribution. Fundamental research on the…

Human activity, such as pollution, may disturb the balance of living water systems, which has consequences for biodiversity, but also for other functions such as water purification. Leiden University maps living water systems using the most advanced technologies.

Positive friendships are characterised by understanding mutual wishes and intentions, respect for each other’s boundaries and pro-social behaviour. Qualities that might be more challenging for autistic adolescents.

In this work, I explore the creation of new methods that optimize simulations of the gravitational N-body problem. Specifically, I take advantage of the recent popularity of Machine Learning methods to find tools that can suit this problem.

Promotores: J. Jonkers, K.E. de Visser

The HJD Article Award is a biannual award given to the published research article which best advances the theoretical and/or empirical study of diplomacy.

On 17 October 2018, Thomas Sanders defended his doctoral thesis 'Invordering door de overheid: de invordering van geldschulden uit herstelsancties onder de Awb'. The doctoral research was supervised by Prof. mr. T. Barkhuysen and Prof. mr. M.W. Scheltema.

In this article, Madeleine O. Hosli and Wen Pan examine how intergovernmental dynamics shaped the European Stability Mechanism, using Liberal Intergovernmentalism to assess negotiation phases, the influence of major member states, and which theoretical assumptions hold or need qualification.

In this PhD-thesis several new and existing data science application are described that are particularly focused on applications for tax administrations.

Would you like Leiden University to be a more open workplace that recognizes and rewards all contributions, and an institution that creates and shares knowledge more freely with society?

The power of personalized nutrition lies in being able to conduct clinical research on healthy people while capturing metabolic markers sensitive to the impact of environmental and metabolic stressors (e.g. diet, changing sex hormones and the menstrual cycle).

The world we live in is changing in many aspects at an ever-increasing speed. And it will continue to do so. How do we anticipate these changes, such as the increase in atmospheric CO2, the extinction of species and industrialisation?

The Role and Effectiveness of the G20. In this article, published in The Changing Global Order part of the United Nations University Series on Regionalism book series, author Jaroslaw Kantorowicz discusses the evolution of the G20.

This book by Damien van Puyvelde provides the first comprehensive English-language account of France's modern foreign intelligence and explores its evolution, operations, and role in global security.

To meet the rising demand for minerals driven by the global shift to clean energy technologies, ensuring responsible and resilient supply chains is critical. Minerals like cobalt, lithium, and nickel for batteries, neodymium and zinc for wind turbines, and indium for solar panels are essential.

This article examines to what extent bureaucratic responsiveness depends upon the source, the content and the salience.

Kohei Suzuki and his co-authors reflect on their extensive scholarly experience teaching comparative public administration across diverse countries including Canada, the Netherlands, Qatar, and the United States.

On 19 February 2020, Richard Jiang defended his thesis '‘Greening’ the WTO Ban on China’s Export Duties'. The doctoral research was supervised by Prof. M.C.E.J. Bronckers.

This book provides the answers, presenting clear insights into the current state of affairs and exploring future prospects.

Real-life processes are characterized by dynamics involving time. Examples are walking, sleeping, disease progress in medical treatment, and events in a workflow.

We present an extensive study of methods for exactly solving stochastic constraint (optimisation) problems (SCPs) in network analysis. These problems are prevalent in science, governance and industry.

On the 4th of June, Andreas Joswig successfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Andreas on this great result.