Always taking the same route to work, going for that one dish in restaurants and going on the same holiday each summer: this may ring a bell for those who don’t like uncertainty. Researchers are now discovering that this aversion affects how we understand the world.

As of 1 April 2025, Professor E.A.L.M.G (Elke) Moons has been appointed professor by special appointment of the chair ‘Crime Statistics’ at Leiden University’s Institute of Criminal Law and Criminology at Leiden Law School.

The Leiden Leadership Centre (Leiden University), the Centre for Leadership Ethics and Organisation (Queen's University Belfast) and the Journal of Change Management will be organising a symposium and a special issue on multi-level leadership for the collective good. The complexity and dynamics of societal…

On December 3, 2024, Prof. dr. Sarah Cramsey delivered a Cleveringa Lecture in Vienna. Cramsey was the special guest of the Dutch Ambassador to Austria, Mr. Peter Potman.

On Tuesday 20 September, David Kilcullen, one of the world’s leading experts on modern warfare, visited Campus The Hague of Leiden University to discuss future developments in special operations and the escalating competition between great powers.

Prof. Mark Leiser and a team of thirteen law students from Leiden University’s Advanced LLM programmes in European and International Human Rights Law as well as in Law and Digital Technologies together drafted a report for the UN Special Rapporteur on the Promotion and Protection of the Right to Freedom…

Organisation

How long does it take our master’s students to find a job after they have graduated? How far ahead should you start sending out applications? Where do most Public Administration students end up after graduation? How do most students go about finding work? That was the start of the kick-off meeting Career…

As of 1 September , Karel Berkhoff has been appointed professor by special appointment in Ukrainian History. In this position, made possible in part by the KNAW, he will focus primarily on dark moments in recent Ukrainian history: the persecutions that have taken place in the first half of the twentieth…

When Professor of Tax Law Jan Vleggeert delivered his inaugural lecture in Leiden University’s Academy Building on 30 October 2020, only 30 people were allowed to attend due to coronavirus measures. On 10 June 2022, Vleggeert was therefore given the opportunity to deliver a lecture to a much larger…

Michael Kowalski has been appointed as part-time Professor by special appointment of Applied Ethics in Intelligence and Security at the Institute of Security and Global Affairs (ISGA) at Leiden University.

There seem to be genes that influence how our brains develop over time. A large international consortium has discovered this with an extensive study. The results of the study were recently published in Nature Neuroscience.

On 2 April 2025, eLaw – Center for Law and Digital Technologies of Leiden University will celebrate its 40th anniversary as the oldest digital law department in the Netherlands and the second in Europe. To mark the occasion, eLaw will host a conference with prominent speakers from academia and public…

Conference, Spring workshop

How do animals choose their partners? The answer is simple: it’s all about quality. While humans tend to wear clothes that happen to be in fashion, animals do nothing without a reason. Behind beautiful plumage or a deafening roar is only one message: I am in great shape. The evolutionary courtship displays…

Young Dutch people’s reading skills have been declining for years. The main reason for this is that many have difficulty with reading at greater depth. Teach pupils to read actively in order to construct meaning is what Leiden researchers Paul van den Broek, Christine Espin and Anne Helder write in…

Education

The Institute for Philosophy further expands its knowledge: As of 1 September, Annemie Halsema holds the chair of Wijsgerige antropologie en de grondslagen van het humanisme (Philosophical anthropology and the principles of humanism, ed.). In the coming five years, she will study current societal issues…

Francesca Albanese, UN Special Rapporteur for human rights in the occupied Palestinian territories, visited Leiden Law School on 8 December within the scope of International Human Rights Day.

Rogier Hartendorp is professor by special appointment of social effectiveness of justice at Leiden University and a judge at The Hague District Court. So, the perfect person to liaise between our faculty and the Court. We asked him some questions about this role.

André van der Laan has been appointed Professor by Special Appointment of Juvenile and Adolescent Crime at Leiden University, a chair established by the Leiden University Fund (LUF) and the Dutch Research and Documentation Centre (WODC). It is the first time that a professorship by special appointment…

As of 1 September, Jeroen van Zon started as professor by special appointment in Quantitative Developmental Biology at the Institute of Biology Leiden (IBL). Van Zon is also group leader of Quantitative Developmental Biology at the physics research institute AMOLF. Three questions about his new role…

What are the often invisible cognitive consequences of multiple sclerosis? Maureen van Dam mapped these out during her doctoral research. 'People usually notice the physical symptoms, but the cognitive symptoms deserve at least as much attention.'

Prof. dr. ir. Bas Rietjens of the Dutch Defense Academy (NLDA) has been appointed Professor by special appointment Intelligence in War and Conflict at Leiden University’s Institute for Security and Global Affairs (ISGA). The appointment of Rietjens is the result of a more intensive collaboration between…

As of 1 December 2024, Uta Wehn is professor by special appointment of the chair 'Citizen Science and Sustainability' within the Focal Area Engagement and Inclusion at the Centre for Science and Technology Studies (CWTS) at Leiden University. The new chair has been established jointly by CWTS and IHE…

As of 1 September 2024, Thed van Leeuwen is professor by special appointment of the chair “Monitoring Open Science Policies and Practices” at the Centre for Science and Technology Studies (CWTS) at Leiden University. The mission of the chair will be to understand the changes in policies and practices…

PhD defence

Beads are among the oldest types of human artistic expression. Even so, the small ornaments have a bad status record regarding archaeological investigation. PhD candidate Mette Langbroek, usually at home studying early medieval beads, had the opportunity to work on a publication and exhibition on 5000…

Student of International Studies Susanne Reitsma has a remarkable passion: water. In April 2015, she was elected vice president of the World Youth Parliament for Water, in which capacity she works for worldwide access to clean drinking water and sanitation. What does Suzanne find so special about water?…

Historian Dario Fazzi is the new professor by special appointment at the Roosevelt Institute for American Studies (RIAS), a strategic partner of the Faculty of Humanities. He starts on 1 September and will combine his new position with his current teaching duties at the Institute for History.

Starting April 2026, Niels van Willigen will join the Institute of Political Science at Leiden University’s Faculty of Social and Behavioural Sciences as Professor by Special Appointment in Strategic Studies. This appointment was made possible by the Atlantische Commissie, which established this chair…

She studied biology in Leiden and never left. Now, as Professor of Immunobiology, Annemarie Meijer has taken on the role of the new confidential counsell for for PhD candidates. It's a role that suits her perfectly: she has extensive experience in the research world and has guided dozens of PhD candidates.…

Researchers Marit Ruitenberg and Janna Marie Bas-Hoogendam have received NWO-XS grants for their research projects on freezing in Parkinson’s disease and the neurobiology of social anxiety. The grant supports innovative, curiosity-driven research within the social sciences and humanities.

Starting September 2024, Amanda Henry has started a new role as Professor by Special Appointment on the Evolution of the Human Diet at Naturalis Biodiversity Center in Leiden. She will use this position to draw closer ties between the Faculty of Archaeology and Naturalis, and explore means for public…