The English edition of Rijpkema’s Weerbare democratie is published in Routledge’s Extremism and Democracy series, one of the leading series in the field, edited by Roger Eatwell and Matthew Goodwin.

How can chimpanzees, so closely related to humans, have almost no sense of rhythm? ‘The best students ever’ and behavioural biologist Michelle Spierings demonstrated that chimps can actually drum and move rhythmically—each following their own unique beat.

Opting more often for mocktails or soft drinks rather than beer or wine, talking to others about their drinking and pointing out the ban on drugs. Leiden University’s new covenant on alcohol and drugs for study associations encourages providing more alcohol-free alternatives.

Masses of hamburgers, steaks, cheese and a lot of eggs: Americans love their animal products. But researcher Oliver Taherzadeh discovered that only a relatively small group of high-volume consumers need to modify their diet to achieve an enormous environmental gain.

Science education project Space Awareness engaged 230,000 people in 68 countries with the excitement and challenges of space sciences and technologies. After three years, the project coordinated by Leiden Observatory came to an end in March and has now been evaluated.

ChatGPT, translation machines and bots: for Carole Tiberius, they are a piece of cake. On 1 January, she was appointed professor of Computational Linguistics. 'There ae two elements to the field: computer science and linguistics.'

Vaccination is the most effective method to prevent influenza infection. However, current influenza vaccines have several limitations. Relatively long production times, limited vaccine capacity, moderate efficacy in certain populations and lack of cross-reactivity are important issues that need to be…

This thesis explores Breaking of Ensemble Equivalence (BEE) in random graph models by examining the spectral properties of adjacency matrices. The goal is to identify spectral characteristics that differentiate random graph ensembles, enhancing the understanding of complex network structures and beh…

The subject of this thesis, ‘Approach to Markov Operators on Spaces of Measures by Means of Equicontinuity’, combines an analytical and probabilistic approach to Markov operators.

VVI Research Meetings 2022-2023

PhD defence

PhD defence

Promotor: F.H.J. Redig, Co-Promotor: W.T.F. den Hollander

Promotor: Promotor: W.Th.F. den Hollander, Co-promotor: V. Sidoravicius.

This research intents to redefine the limits of the electric guitar.

Under what circumstances do paramilitary groups limit their use of political violence? This article examines the use of political violence by the PIRA.

Managing scarcity to serve the public interest is a classic government task. An important way to execute this task is by allocating individual rights that are only available in limited quantities, such as CO2 emission allowances, gambling licences, subsidies, radio frequencies, public contracts and…

Reflective dialogue is an effective instrument for professional learning of teachers. This research considers the characteristics, development, stimulating and limiting conditions for reflective dialogues in the context of Dutch primary school teachers who collaborate and learn together. The goal is…

On 21 October 2021, Frederik Behre defended the thesis 'A European Ministry of Finance?'. The doctoral research was supervised by Prof. S.C.G. Van den Bogaert.

Everything you need to know about the minor Ecology, Migration and Tolerance: Limits to Cooperation.

This book offers a comprehensive analysis of the international law applicable to cyber operations, including a systematic examination of attribution, lawfulness and remedies. It demonstrates the importance of countermeasures as a form of remedies and also shows the limits of international law, highlighting…

Promotor: M. de Jong, Co-Promotor: Samtleben

This guide will give you the necessary help and guidance in submitting your application for the master’s specialisation Clinical Psychology at Leiden University.

This guide will give you the necessary help and guidance in submitting your application for the master’s specialisation School Psychology at Leiden University.

A Small Private Online Course (SPOC) is an online academic subject for a limited group of participants.

This guide will give you the necessary help and guidance in submitting your application for the master’s specialisation Health and Medical Psychology at Leiden University.

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

To mark our 450th anniversary, our faculty has joined forces with one of our sponsors to design some special anniversary merchandise. This will be on sale at various times throughout the year.