When galaxies collide, do the black holes at their centre form a supersized black hole? This is what we think happens, but it's not as simple as that, according to Simon Portegies Zwart. Zwart, computer scientist and astronomer, has been awarded a VICI grant to research this phenomenon.

Jacques Waisvisz (98) is one of our oldest living alumni. As a Jewish student in the Second World War, he was forbidden from completing his studies. How does he look back at that time, and what was life like afterwards? ‘No one thought that the situation here would become so bad.’

During her studies, professor Carmen Vleggeert-Lankamp developed a deep passion for spinal surgery. From exploring unknown fields and supervising PhD candidates to providing appropriate care for patients and making the most of data: her fascination remains strong to this day.

On Monday 23 January 2023 J.T.P. (Hans) de Bruijn passed away at the age of 91. Until 1995 he held the Chair of New Persian Language and Culture at Leiden University.

Atrocities have been the order of the day in Syria since war broke out in 2011, but the perpetrators are rarely tried. According to PhD candidate Elizabeth Van Schaack, the international community could bring justice in Syria, but only if there is political will. PhD defence on 29 April 2020.

The out of control ‘Project X’ event in Haren, hooligans who arrange to meet up to fight and beach riots at the Hoek van Holland: group violence is increasingly hitting the headlines. Are those who took part seasoned criminals? And what characteristics do group offenders have? PhD defence on 29 September…

The General Data Protection Regulation (GDPR) came into force in 2018. It was intended to protect the rights and freedoms of individual citizens from the risks of personal data processing. Meanwhile, the phenomenon known as big data has continued to advance at a fast pace. PhD defence on 12 Septembe…

Computer says no: end of story. Twenty years ago, a hilarious line in the British TV series Little Britain, now a reality. We all blindly follow technology at times, with varying consequences. For ISGA lecturer and researcher Daan Weggemans, it's a subject worthy of a PhD.

‘Academics have descended from their ivory tower, but there’s still too little action or financing.’ Leiden professor of Science Communication Ionica Smeets saw all her wishes come true on 28 January, with the presentation of the Letter to Parliament sent by Minister Van Engelshoven of the Ministry…

On 9 June the deans of Leiden University met for the 500th time with the Rector Magnificus for the Board of Deans. An informal, inspiring and contemplative meeting without a strict ending time, say deans and former deans.

Leiden historian Herman Obdeijn has created an exhibition for NIMAR about the centuries-old bond between the two countries. The exhibition opens on 1 March at the Université Mohammed V in Rabat. ‘The Moroccans changed from distant allies to close neighbours.’

Below is a chronological list of the most recent to oldest publication from the MultiGreen project.

What can criminal courts do when the course of justice is obstructed? Countries such as England and Wales apply the instrument contempt of court, which enables the court to act according to criminal law in such a case. Could that work in the Netherlands too? PhD defence on 18 December.

Children who come into contact with the police are not destined to become long-term offenders. This appears from research conducted by Babette van Hazebroek, who defends her dissertation on 30 September 2021.

Online, hybrid, on campus... It was an unpredictable year, also for the Faculty of Humanities. Luckily, there were also non-corona related stories. Let's review 2021 with this list of the most-read news articles per month.

Sergei Boeke has once again proven that there are more roads than one that lead to Rome with his PhD research into al Qaeda in the Islamic Maghreb. It is both the core point of his conclusions as well as the leitmotiv for his approach. Boeke’s dissertation is comprised of five academic articles that…

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

The new Executive Board of the Institute of Psychology became effective on 1 February 2022. Scientific director Andrea Evers tells us where she gets her energy from.

At least six people are off to a good start of the summer, because they are the recipients of a Meijers grant. For the next few years, these researchers will be able to devote themselves to their PhD research. Let’s meet these new PhD candidates!

Our annual "Science to Experience" exhibition of student works is hosted by the V2_ Lab for the Unstable Media. This year's theme is "LIVING".

Paul Wouters came to the Faculty of Science for a few months to help with organising day-to-day issues after the previous dean left. This has involved rather more than he expected. ‘I can now really understand why every faculty has its own dean.’

Legal proceedings conducted on behalf of apes and animals who are starved for the purpose of an ecological project. What position do animals actually have in the rule of law? And what changes need to be made? PhD candidate Janneke Vink defends her dissertation on 10 October.

Health conditions and social problems often go hand in hand. To address this complex issue in families in The Hague, researchers, managers, support services, policymakers and residents are joining forces. What are the results of this transdisciplinary approach?

The response of international organizations to the problems of cross-border death and gift taxation needs to be revisited, according to PhD candidate Vassilis Dafnomilis. PhD defence on 3 June 2021.

More than three quarters of the 237 million Indonesian population has no access to tap water. They are dependent on water from rivers often polluted by industry. Laure d’Hondt conducted research into why it is so difficult to tackle these polluters and will defend her PhD dissertation on 17 October.

The Faculty of Humanities wants to take a stand in the middle of society with its research and education. That’s why last year, in the middle of a pandemic, the Societal Advisory Board was founded. What are the members’ plans?

Each year it is estimated that thousands of people fall victim to human trafficking in the Netherlands. Many of these victims are minors. Assistant Professor of Criminal Law Luuk Esser conducted research on the current legislation to combat human trafficking. His PhD defence is on 25 September.

A delegation from Leiden University visited various universities in Japan at the end of March. The strong ties between the Netherlands and Japan are still based on a long tradition of knowledge exchange.

NWO has awarded a Vidi subsidy to a total of 89 young and innovative researchers. Leiden researchers have won twelve of these subsidies and three subsidies have gone to the LUMC. Each researcher will receive up to 800,000 euro to develop a particular research theme or to set up a research group.

A cannon, a sabre, guns: these Sri Lankan objects had been in the Rijksmuseum for centuries. In early December, they were returned to Sri Lanka. Associate Professor of Colonial History Alicia Schrikker led the research that formed the basis for the restitution and published a volume on the findings…

In this bilingual profile, you follow university teacher training with a special focus on language, culture and diversity in bilingual and international education. Student Lauren Rutherford and educator Tessa Mearns talk about this programme.

The Europaeum academic community was awarded the Scaliger medal on 23 September in recognition of its promotion of academic values. Andrew Graham, trustee to the Europaeum and founder and honorary advisor to the Scholars Programme, was presented with the medal by President of the Executive Board Annetje…

We are delighted that our annual "Science to Experience" exhibition will again take place, hosted by the V2_ Lab for the Unstable Media. Students were challenged to communicate their own science-inspired statements as experiences within the exhibition, this year along the theme "MUTATE".

A symposium with a festive touch was organised at Leiden University on 20 March to mark the 50-year anniversary of the marriage of Princess Margriet and Pieter van Vollenhoven. The theme of the symposium was 'Catastrophes and the Law', a theme, the royal Princess and Prince were quick to reassure the…

Should the media refer to a criminal’s ethnicity? Law students held an online afternoon symposium on discrimination in the criminal justice system – and, while they were at it, society at large.

‘You’re in it together,’ says Pascal Haazebroek, Director of Studies of Psychology. ‘You have an influence on your education; you’re part of a university, so come back to campus now that you can,’ urges Kirsten Buitelaar, student member of the Board of Education. Read this double interview about lecturers…

The launch meeting of the Leiden Islam Academy on 7 December in the Academy Building drew just the right audience: a diverse group of people who were all in some way engaged with Islam. This was just what the directors of the Academy, Maurits Berger and Fatiha Azzarhouni, were hoping for.

There is a crisis in the law concerning the accommodation of religious practice. The legal profession is demanding that the law be changed because it does not want religious institutions to have the 'right to discriminate'. The profession holds that evolving societal sexual norms can render lawful religious…

China is prohibited from using export duties to address any environmental problems. This is unfortunate, according to PhD candidate Fengan Jiang (Richard), as export duties could be useful in tackling global carbon leakage. PhD defence on 19 February 2020.

Three professors voice their concerns about a vulnerable group in our society: children who come into contact with youth care.

Psychologist Bernou Melisse was shocked at the long waiting lists in the Netherlands for people with binge-eating disorders. The problem was not yet on the map in Saudi Arabia. She therefore decided to study how people suffering from binge eating can be helped better in their own region of the world.…

In 2017, in an ordinary field, two brothers from Brabant discovered more than 100 ancient coins. The Leiden historian who examined the coins concluded that they constituted a genuine Roman treasure. Here follows a reconstruction in three acts.

Within a single generation, the digital world has changed completely: from a technical niche for ‘nerds’ to a reality that affects everyone. Cyberattacks, data breaches and system failures can disrupt essential social processes. How can we ensure that our society remains digitally resilient?

Increasingly, crime and immigration are mentioned in one breath. This 'interweaving' of these terms is referred to as crimmigration, an expression mainly used in legal science. But what does crimmigration actually entail in practice? Defence on 8 January 2020.

In a packed lecture hall at Wijnhaven, Nobel Prize winner Paul Krugman succinctly summed up the essence of his argument on Wednesday 17 September: ‘Running a good society is hard’. His lecture held up a mirror to economists and policymakers.

This section provides an overview of online tools for the study of the medieval Low Countries. The websites linked down below are often times both available in Dutch and English.

This is an incomplete list of scientific publications by students and staff of the Creative Intelligence & Technology MSc programme.

PhD defence

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