From time to time, manuscripts that have remained hidden for centuries turn up in library collections and archives. In the archives of the 17th-century Bibliotheca Thysiana at the Rapenburg in Leiden, kept in the Leiden University Library, Rotterdam researcher Erik-Jan Bos discovered a hitherto unknown…

She has had the idea for seven years, but now environmental scientist and conservation biologist Kat Stewart finally gets to work on it. She has been awarded a Vidi grant by NWO to find out how DNA from water can be used to shed light on invasive species and their impact on native populations.

Studying as an asylum seeker without a residence permit. Every year, student initiative IncLUsion enables dozens of asylum seekers to take several courses at Leiden University. ‘Education has given me a lot of support.’

The POPCorner The Hague festive opening week has been postponed due to the more restrictive corona measures, but the website is online, its’ employees are roaring to go, and there are plenty courses and workshops available to take part in. High time to get to know more about this meeting point for and…

She narrowly defied bureaucracy and spent days angling for cod. In the North Sea, marine biologist Inge van der Knaap discovered that noise significantly disturbs fish behaviour. ‘There is now a lot of attention for underwater noise.’

The euro crisis of 2010 has shown that the Eurozone lacks economic cohesion and that EU fiscal integration is needed for a stable euro. But can this integration exist without clashing with the national constitutional interests of the Member States? Frederik Behre looked into this matter in his PhD-thesis…

Ruim twintig nieuwsgierige medewerkers en studenten kregen een rondleiding in het nieuwe universiteitsgebouw van de Universiteit Leiden aan de Grote Marktstraat en het Spui in Den Haag dat in september 2025 de nieuwste locatie van de Campus Den Haag gaat worden. Nu is het vooral een kwestie van door…

Besides physics, the sleep of PhD students also benefits from Vitaly Fedoseev's PhD research. He will receive his doctorate on July 7 for his work on optomechanics within quantum mechanics. And also on a setup that eliminated the need for PhD students to push a button every hour for 72 hours.

The Institute for History has a new academic director. Professor of Early Modern History Jeroen Duindam will take on this role from 1 September. ‘You can only do this job properly if you make time for it.’

Mark Rutte, the Dutch prime minister, gave a guest lecture to first-year law students at Leiden University. He spoke about democracy, the war in Ukraine and the role of the Netherlands.

Geert-Jan Janse has always been fascinated by the way objects can bring the past closer. On 16 November, he will present a Museum Talk about his work as the director of the Vereniging Rembrandt (Rembrandt Association).

Jasper Knoester is the dean of the Faculty of Science. How is he doing? What kinds of things is he doing and what does his day look like? In each newsletter Jasper gives a peek into his life as dean.

The university is launching a campaign to focus extra attention on our smoke-free university locations. The University is using aptly named cigarette barrels to try to show clearly just how many cigarette filters are being saved from the environment. How harmful are these cigarette filters to the e…

A special type of mirror to reflect X-rays has more possible applications than space research. Targeted radiation therapy for cancer, for example. Next to his full-time job, physicist David Girou mapped out the possibilities. He will receive his PhD on 14 June.

This month we interview alumna Dominique Mars who made an interesting career choice: she tells us how she chose to be a teacher at a primary school whilst having obtained her Master in Child Law.

Every year, an outstanding lecturer receives the Faculty Teaching Prize. Lecturers are nominated by students and a jury decides who will receive the prize. The prize is awarded during the official opening of the academic year on 8 September. This year, students nominated four candidates. We spoke to…

The members of the Duivelsei student association are games mad, be it computer or board games. Game of the Goose and Ludo have fallen out of favour. The students prefer more-challenging board games or online gaming instead. ‘You can be yourself here.’

Researchers from the Leiden University Medical Center (LUMC) have successfully used stem cell gene therapy to treat a baby with the severe congenital immune disorder SCID. An important milestone: it is the first time stem cell gene therapy of Dutch origin has been administered to a patient, and also…

New ministers, new state secretaries and new members of parliament. Around the time of the elections, we often talk about the new faces, but there are also many politicians who leave during this period, sometimes out of necessity. How do you say goodbye to a political career? Henk te Velde, professor…

Making learning material come alive and convey it in the best possible way: that is the aim of education developer Wybrigje de Vries of the Science Teacher Support Desk. Together with university lecturer Edgar Blokhuis, she developed the online module ‘Error Assessment’ for first-year LST bachelor students.…

Did you know that PhD candidates are also alumni of your alma mater? High time to put a PhD alumna and her research in the spotlight. Besides, this month our UNICEF Chair in Children’s Rights is celebrating its tenth anniversary.

In donut-shaped buildings, particle accelerators take super-detailed X-ray images. Yet those images are not good enough to learn how to drive on hydrogen for example. Mathematics PhD student Allard Hendriksen has developed an algorithm that improves the images without having to learn from data from…

A standing ovation. A wave and a smile from the president. A final selfie. Ukrainian President Volodymyr Zelensky addressed students in the Netherlands for the first time on Tuesday morning via a livestream in The Hague. He did so in front of two packed lecture halls at both Leiden University and The…

Recently, in the midst of coronavirus situation, Professor Corinne Hofman and her team became part of the NWO project Island(er)s at the Helm. Both the application process as well as the start of the project were challenged by the limitations set by Covid-19. ‘As a preparation we travelled through the…

How do you make sure you have engough money every month? Do you receive a basic grant, have a part-time job or do you borrow for your studies? Below, a student and a recent graduate tell us how they view their student debt.

The Leiden Ranking – Open Edition is completely transparent. The ranking compiled by the CWTS uses open data and publishes the algorithms that are used.

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…

Like many moot court competitions around the world, the Leiden-Sarin International Air Law Moot Court Competition was conducted fully online this year. The International Air Law Moot Court is an unparalleled forum for bringing together students and aviation professionals who share a passion for air…

The Board of Leiden University has appointed Armin Cuyvers as a full professor of European Law, specifically EU Constitutional Law and Comparative Regional Integration, effective per 1 September 2021.

In addition to cholesterol and high blood pressure as risk factors for atherosclerosis, we may need to address our own immune system to prevent a heart attack or stroke. Marie Depuydt revealed which cells exactly reside in the atherosclerotic plaque that narrows an artery. The presence of a diverse…

What do the cloth trade and slavery have to do with each other? Quite a lot, as it turns out, as by history student Sjoerd Ramackers demonstrated in his bachelor’s thesis. He reveals that cloth merchant Daniel van Eijs was closely associated with four plantations in Berbice, a former Dutch colony on…

Dr. Els de Busser, assistant professor and researcher at the Institute of Security and Global Affairs, as principal investigator of a consortia, has been awarded 1.45 million euros for a project called C-SIDe.

From predicting Alzheimer’s to the growth of organisms: psychologist Marjolein Fokkema’s algorithms can be used in many disciplines. They also provide inspiration for her songs, theatre shows and life lessons. What drives this rocking researcher?

Between 6 and 9 June, you’ll be able to vote in the European elections. But what can you expect from these elections? What are the most important topics on the European agenda? And why should you even vote? Students from the European Law master’s specialisation explain.

That the tax authorities are allowed to impose taxes is widely known. What is less well known is when the tax authorities must impose taxes. And what to do when one set of regulations requires the tax authorities to impose taxes while other regulations prevent them from doing exactly that? Vergouwen’s…

'The kind of knowledge you gain in International Studies can take you anywhere,' says Gaby van de Wal (26, The Hague, The Netherlands), who graduated from the programme in 2018. Her own career path is proof that indeed, an International Studies degree comes with many opportunities.

Exploring the minds of our primate cousins in the wild, using under-exploited observations of their travel paths. A large set of observations of the travel paths of wild primates provides new opportunities for in-depth insights in the evolution of the mental abilities that primates, including ourselves,…

Purple clothing and a pride flag flying from all University buildings: Leiden University is once again taking part in Purple Friday. How do people experience this day? We asked some employees and students of the Faculty of Humanities.

What effect did the lockdown have on young people? Leiden researchers started a study of this in the first year of the covid pandemic. They discovered an impact on the development of the brain areas involved in social behaviour. The researchers published their discovery in Scientific Reports at Nat…

Governments and public sector organisations consider evidence-based or evidence-informed policymaking as one of the pillars of good governance. That is to say: policies that are informed by scientific knowledge, expertise and evidence. In the research programme 'Power of Evidence', Valérie Pattyn and…

During a festive meeting, the In-house Emergency Service (IES) team of the Pieter de la Court Building was pampered by the Faculty Board FSW and the UFB management on 10 February 2022. It was high time to thank the team for their service, drive and commitment. Symbol of this gratitude is the statuette…

Students from ‘StudentinzetopSchool’ help schoolchildren and gain valuable teaching experience at the same time. In an online visit on 13 April, Queen Máxima spoke to pupils, students and teaching staff. She also spoke to participants from Leiden. ‘Teaching is wonderful, but it’s complex too.’

You may have noticed this happening more often: your municipality sends you an online questionnaire to find out your opinion on the renovation of a certain area or the design plans for a new district. But how inclusive are these online platforms where citizens can participate in decisions on government…

After working full-time for twenty-four years, Wendy Tonks decided to enrol in the executive master's in Cyber Security. She now proudly reflects on her time in the programme after receiving a ten for her thesis and graduating summa cum laude. ‘I could not believe it when I got my grade.’

Jyothi Thrivikraman set up a Virtual International Collaboration project with a university in Myanmar.

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…

On 1 September 2023, 280 students received their Bachelor Diploma of International Studies. The students were awarded their diplomas in the historic Pieterskerk in Leiden: the UNESCO world heritage site, where the university was originally founded in 1575. A large audience of about 700 people consisting…

The start of the renovation of Cluster Zuid was a long time coming, but the moment has finally arrived. On Wednesday 8 June, Dean Mark Rutgers, accompanied by the contractor Constructif, symbolically marked the start of the demolition and reconstruction works by demolishing part of the roof.

As a woman, working in Japan and Korea can be pretty tough, Yorum Beekman discovered. It prompted her to pursue a PhD on the subject: ‘I thought: hey, that’s interesting!’