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…

How can humans and computers learn from data? To research this, scientists often use so-called Bayesian methods. Although these methods are widely used, they also have limitations and are not always easy to interpret. In her dissertation Rianne de Heide describes some of these problems and introduces…

On this page you will find a list of all research and teaching applications that are available for use outside the University network. The list will be updated regularly.

PhD defence

If you work at home on a structural basis – at least one day a week – and you have an employment contract for 19 hours or more, you can request facilities for working from home

How do people become involved in terrorist organisations? Liesbeth van der Heide sought the answer to this question in a Malian prison, where she interviewed terrorists in a tiny cell. She discovered that the will to survive and social context are often more decisive than individual ideological convictions.…

What defence strategy should the Dutch government adopt for the next four years? Our experts advise investing in social resilience, strengthening ‘soft power’ and integrating defence awareness into education.

PhD defence

Kai Hebel explains how the 1975 Helsinki Accords shaped European diplomacy and why their spirit remains urgently relevant in an era of renewed geopolitical in the Guardian.

The outreach and engagement platform BrainTrain consists of five enthusiastic students of the masters programme Forensic Family Science. As part of their project, the students visit high-schools to teach adolescents about the brain, make them experience that their own reality is not always the only…

Our confidential counsellors can provide confidential advice on a range of issues, including bullying, intimidation, sexual harassment, aggression and discrimination. You can also approach them with concerns about your manager or potential breaches of academic integrity.

Young people being deployed to carry out explosive attacks: how do they come into view, and what motivates them? The podcast 'Action/Reaction: From Attack to Approach' by the research project Close Protection and Surveillance and researcher Sheila Adjiembaks takes a closer look at why and how young…

Examining cybercrime from criminological, legal, administrative, and technical perspectives. The new Bachelor's programme in Cybersecurity & Cybercrime addresses the growing demand for versatile cyber professionals..

How do digital technologies affect adolescent mental health and resilience? How do we foster a secure online environment? How should we deal with increasing rates of online crimes among adolescents? During the mini-symposium ‘The effect of the online world on adolescents’, presented by the interdisciplinary…

Management, Leadership

If you work at home on a structural basis – at least one day a week – and you have an employment contract for 19 hours or more, you can request facilities for working from home

Media outlets Investico, de Groene Amsterdammer and Trouw reported on the wide-scale collection by the Dutch police of personal data of demonstrators and their family members. Bart Schermer, Professor of Privacy and Cybercrime, commented on the issue.

Naar aanleiding van de aanhoudende oorlog tussen Rusland en Oekraïne willen verschillende Europese landen een inreisverbod invoeren tegen Russische staatsburgers. Maar mogen zij dit zomaar doen?

At least 27 migrants died on 24 November after their boat capsized in the Channel between France and England.

Marieke Liem, professor at ISGA, discusses how the number of drug-related murders has not decreased in the last years

In a one-hour interview on Dutch radio programme Sleutelstad, Anne-Laura van Harmelen talks about her research into the role friendships in adolescents' well-being, the resilience paradox and the role of social, hormonal and genetic factors in stress-levels and resilience.

Eighty years after its founding, the United Nations faces major challenges. Once established to prevent global conflict, the organisation now operates amid geopolitical tensions, prolonged wars and growing criticism. Joris Larik discusses this in Forbes.

Why do some people with adverse childhood experiences develop mental health conditions whereas others do not? A Leiden research project is looking for volunteers aged between 18 and 24 to help us understand more about human resilience.

People in the Early Bonze Age used bronze artefacts as a means of payment. This is the conclusion reached by archaeologists Maikel Kuijpers and Catalin Popa in a PLOS ONE article published on 20 January. The discovery led to a surge of media reports.

Our banking, DigiD and sensitive medical data: what if our entire digital infrastructure can no longer be trusted? Jelle Don has this question permanently in mind as he goes about his research. And that is no bad thing because without new digital security measures, our society will be extremely vuln…