With the rise of information and communication technologies, large amounts of data are being generated and stored in databases. In order to get a better grip on these large amounts of data, serious efforts are being made to discover patterns and relations in the data with the help of new techniques.…

In recent decades, the Netherlands’ struggle with multiculturalism has caused an upsurge in public interest in the relationship between state and religion. In this, the Dutch address a subject relevant not just to them, but to all of Europe.

Promotor: G.A. van der Marel, Co-promotor: J.D.C. Codée

On 10 June 2021, Merinda Stewart defended her thesis 'Freedom of Overflight: A Study of Coastal State Jurisdiction in International Airspace'. The doctoral research was supervised by Prof. P.M.J. Mendes de Leon en Prof. J.J. Rijpma.

Mei-Wen Chen defended her thesis on 29 June 2016

Organ-on-chip technology is used in drug research and customized treatments for patients. Research Institutes and industry join forces within the Institute for human Organ and Disease Model Technologies (hDMT) that was officially launched on May 18. Combining facilities, people and expertise will allow…

Politically speaking, the Frisian coastal area constitutes a special case in late medieval Europe since it was not subject to an overlord as it withstood feudalization in the 13th century. Its many sub regions, which were dominated by elites of small noblemen and freeholders, long time succeeded in…

We aim to provide new insights relating to the spectacular multi-cellular life cycle of streptomycetes and other actinobacteria.

Single-celled organisms have stiffer DNA than multicellular lifeforms like humans and rice. Theoretical physicists managed to simulate the folding in full genomes for the first time to reach this conclusion. Publication in Biophysical Journal on February 7.

Emily Wolff, PhD candidate at Leiden University, wrote a paper about the inclusion of imperial citizens in the Dutch post-war welfare state.

The Hague Program for Cyber Norms, a research program at the Institute of Security and Global Affairs, published its first policy brief, in which Dennis Broeders, Sergei Boeke and Ilina Georgieva explore the role of intelligence agencies in cyberspace and the (im)possibilities of oversight and regulation…

Political Scientist Katharina Natter (Leiden University) advances theory-building on immigration beyond the liberal state and demonstrates how immigration politics can provide valuable insights into the inner workings of political regimes. Connecting scholarship from comparative politics, international…

A group of single-celled organisms organises its DNA in a similar way to higher organisms such as plants, animals, and fungi. However, the way packaged DNA is read out differs between the two related groups, Bram Henneman discovered. PhD defence on 5 December.

Leiden researchers have found minute movements in the laccase enzyme. This discovery could lead to the development of much more efficient biofuel cells. Publication in Biophysical Journal.

This research aims to investigate how different social forces interact with hydropolitics in the Eastern Nile Basin and what are the constraints of engagement.

Healthy aging is one of the prime goals in today's society and atherosclerosis is among the greatest causes of morbidity in elderly. Cardiovascular disease patients receiving treatment are often of advanced aged and have an aged immune system, which limits translating experimental findings to the pa…

How were (post) colonial migrants included in post-war welfare systems?

This research deals with the royal houses of the Vijayanagara Empire and four of its successor states: Ikkeri, Tanjavur (under both the Nayaka and Bhonsle rulers), Madurai, and Ramnad. This study is thus concerned with dynastic politics and imperial legacies in south India between the 14th and 18th…

Promotor: Prof.dr. G.P. van Wezel

The article offers a comparative systematic literature review of the principles, norms, and strategies associated with Security by Design and Privacy by Design

Advanced fluorescence microscopy techniques have revealed how steroid receptors move inside the nucleus. The results were published by a team from Leiden University and the Erasmus Medical Center in Rotterdam, led by IBL-researcher Marcel Schaaf.

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

Religion, Class, and the Postwar Development of the Dutch Welfare State. Dennie Oude Nijhuis.

Book by Soledad Valdivia Rivera

United States and Chinese foreign assistance and diplomacy addresses the analytic weaknesses of mainstream analysis of foreign aid, which often focuses on its material dimensions. The book underscores the constitutive relationship between foreign aid as a material resource and the diplomatic discourses…

We are aiming to develop novel technologies to allow better sample preparation or coupling of analytical methods to (i) analyse ultra small samples, (ii) to analyse more metabolites in a quantitative manner and/or (iii) increase the sample throughput.

Understanding the water use of power production is an important step to both a sustainable energy transition and an improved understanding of water conservation measures. However, there are large differences across the literature that currently present barriers to decision making.

This dissertation combines the use of defined microenvironments, high-resolution fluorescence microscopy, and time-resolved analysis, to study intracellular and cellular motility.

Parkinson's disease is the second most common neurodegenerative disease in the world. One of its symptoms is the loss of dopaminergic neurons in the substantia nigra pars compacta.

Promotor: Prof.dr. J. Kuiper

The research described in this thesis focused on the use of bioorthogonal antigens to investigate immunological processes in antigen presenting cells. Bioorthogonal antigens are antigenic proteins produced through recombinant expression in a methionine auxotrophic E. coli strain.

Identifying and explaining change in the structure of central state bureaucracies and the determinants of survival of individual public organizations are two closely related areas of research in public administration. We aim to bridge the gap between these two main strands of studies of organizational…

With the help of quantum mechanics, digital quantum hardware may be able to tackle some of the problems that are too difficult for ordinary computers. But despite these expectations and the ongoing effort of the research community, reliable quantum computers are not yet realized in a lab setting.

On Wednesday 25 June 2025 Dechun Zhang successfully defended a doctoral thesis and graduated.

Promotores: Prof.dr. H.J.M. de Groot, Prof.dr. J. Matysik (Universitaet Leipzig)

Promotores: B. van de Water; P. Hogendoorn; J. Bovée Co-Promotor: E.H.J. Danen

Tens of thousands of soldiers and civilians have died as a result of Russia’s invasion of Ukraine in February 2022 and the continuing armed conflict. Many forms of critical infrastructure have been destroyed. Much of this devastation has been caused by weapons that utilise forms of artificial intelligence…

The Europa Instituut is pleased to announce that this week a new handbook “EU State Aids” (31 Chapters, 1500 pages) was published.

In a modernist interpretation of migration controls, nation states play a major role. This book challenges this interpretation by showing that comprehensive migration checks and permanent border controls appeared much earlier, in early modern dynastic states and empires, and predated nation states by…

An international team from the Netherlands, France, Norway and Austria demonstrate how new sequencing technologies can be used to efficiently generate the genome, DNA, sequence of an endangered animal, the European Eel.