Project TARGET is a research project aimed at the relation between the illegal arms trade and firearm violence. In a study conducted in seven countries, the researchers took a look at the differences and similarities. Katharina Krüsselmann and Marieke Liem took a closer look at the situation in the…

Daniela Kraft's group has succeeded in creating a network of microparticles that is both strong and completely flexible. This may sound simple, yet they are the first in the world to succeed in doing so. A real breakthrough in soft matter physics.

Is polder rice a feasible circular alternative to cows on peat soil? In May, an experimental trial began, with researchers from Leiden University and Wageningen University & Research (WUR) planting around 3,000 rice plants at the Polderlab near Leiden. The researchers aimed to test rice as a middle…

Gerard van Westen has received the KNCV Gold Medal, the most important Dutch award for chemists under 40. 'It's a huge honour,' says the professor of AI and medicinal chemistry. 'I am now part of the group of people I was always impressed by.'

In the course of 2020 the Faculty of Archaeology was bolstered by some new staff members. Due to the coronavirus situation, sadly, this went for a large part unnoticed. In a series of interviews we are catching up, giving the floor to our new colleagues. We give the floor to Dr Martin Berger, who joined…

Consumer grade smartwatches may not be as accurate as promised when measuring tiredness or stress. That is the conclusion of researchers Björn Siepe and Eiko Fried based on a comparison between smartwatch measurements and self-reports by users.

A group of experts on ancient Greek religious practices has joined forces in the form of the HIERON network. In a grassroots fashion, they decided to host frequent get-togethers in order to share experiences, research ideas, and interdisciplinary views. Leiden archaeologist Michael Kerschner was one…

Some thirty Leiden students balanced on SUP boards for the Supping for Sustainability Lustrum activity. Together with alumnus Merijn Tinga, better known as the Plastic Soup Surfer, they paddled their boards through the Leiden canals and waterways, fishing plastic waste out of the water.

Leiden University signed the Amnesty International ‘Let’s talk about YES’ manifesto on 10 March, confirming the university’s commitment to preventing sexual violence. Steps will also be taken to make sure that everyone within the university feels responsible for a culture in which sex is based on equality…

After having been cancelled in 2020, this year the Summer School in Languages and Linguistics is going online. From 12 – 23 July, language and linguistics enthusiasts from all over the world can once again learn about a variety of rare languages and linguistics topics. Director Sasha Lubotsky tells…

Leiden physicists Carlo Beenakker and Bas Hensen receive 35 million euros in a consortium with researchers from QuTech and Delft University of Technology. They will investigate the fundamental limits of quantum physics.

Leiden professor of molecular astrophysics and astrochemistry Ewine van Dishoeck was presented with the Niels Bohr International Gold Medal on Friday 7 October. The medal, instigated by the Danish Society of Engineers IDA, was awarded by Queen Margrethe of Denmark at a ceremony at the Carlsberg Academy…

Over the past few months, Urban Studies students have been helping to think about the realisation of the Humanities Campus. To test their knowledge in practice, the future urban specialists gave advice on several different aspects, including thermal energy storage and the new central campus building…

This summer, one of our BPS-master students, Ramazan Kiliç, will travel to Baltimore to present his research at the annual ARRE Research Symposium, a conference on ASXL-disorders that attracts researchers from all over the world, including the US, Japan, Germany, Ireland and, of course, The Netherlands.…

Individuals with a mild intellectual disability often experience loneliness more frequently than others. In a new NWA project, social history lecturer Paul van Trigt is collaborating with and for them to find a suitable approach.

On Thursday 11 December 2025, Daan Roovers, the philosopher and former Denker des Vaderlands (Philosopher Laureate), will give the 54th Huizinga Lecture at the Stadsgehoorzaal in Leiden. Under the title What’s at stake: The boundaries of politics and fair play, she will reinterpret Johan Huizinga’s…

People who move most in the afternoon and evening are less insulin resistant than people who move mainly in the morning or spread throughout the day. This makes them at lower risk of type 2 diabetes. These are the results that researchers from the Leiden University Medical Center (LUMC) have published…

All students receiving their bachelor diploma in Political Science last week had a reason or two to celebrate. Two of them especially so: they won the annual award for the best thesis in the International Relations and Organisations and the Politicologie/Internationale Politiek programmes. Congratulations,…

Using mathematics to determine whether scientific results are significant or not. Peter Grünwald, full professor of Statistical Learning at the Mathematical Institute (MI) and senior researcher in the Machine Learning group of Centrum Wiskunde & Informatica (CWI), has been awarded an ERC Advanced Grant…

In recent weeks, all PhD students and supervisors have received an invitation for a PhD survey. Why was this survey launched? And what happens to the results? Director of the Graduate School Marian Klamer explains why it is worth setting aside 15 minutes to take part in the survey.

Early treatment benefits patients who have not fully developed rheumatoid arthritis but are in the preliminary stages of the disease. This is what researchers from the Leiden University Medical Centre (LUMC) have reported in The Lancet. Patients in the pre-arthritis stage who were temporarily prescribed…

Dutch influencers like Romy Boomsma and Nina Pierson have a huge following on Instagram and are increasingly sharing book tips there. Researcher Aafje de Roest wants to find out more about the reading culture they are promoting and its effect on the reading habits of their mostly young female follow…

Alumna Simay Çetin received the award for her Master thesis: ‘Interpreting Culture through Embodied Practice: An anthropological study of sexuality among Dutch Women with Turkish Migrant backgrounds.’ Nova, Marta, Iris and Emma were awarded for their Fieldwork NL report.

Open, extravert, agreeable, stress-tolerant and conscientious. These are the character traits of surgeons according to research by the LUMC.

A large research group involving Leiden University as corresponding Host Institution has been awarded a major European grant, the ERC Synergy Grant. This for research on how Europe developed after the fall of the Roman Empire with special attention to the yet underexplored but undoubtedly important…

The Fieldwork NL report prize goes to the “Queer Joy in Motion” report, by bachelor students Dorota Olsavska, Marthe Baalbergen, Rielly Puchalski, and Rosa Graffé. Master student Imogen Cooney receives the Speckmann Award for her thesis ‘Decolonizing Faculty’.

To eat or get eaten. It describes the evolutionary race of snakes versus the mammals and birds that prey on these snakes. Muzaffar Ali Khan devoted his PhD to investigating the molecular mechanisms play of the evolutionary arms race, and has his promotion 16 February. What makes mammals and birds successful…

Ten years ago, a new reward system was introduced in Dutch prisons: the only way prisoners could earn extra ‘freedoms’ was through good behaviour. Jan Maarten Elbers concludes that this system does little to encourage behavioural change and can even be counterproductive.

Many children eat too many high-calorie foods and too few vegetables from an early age. PhD candidate Merel van Vliet researched the role of parents in this. ‘Don’t force children to clean their plates.’ PhD defence on 15 June.

Working for a social client during your studies: this is what happens at Urban Studies. For the course Urban Studies in Practice, third-year students carry out projects for public clients, such as the municipality of The Hague.

In the Spanish town of Guadalajara, there is a street named ‘Burgemeester Fluiterstraat’, named after a descendant of Leiden migrants who had done well in the South. He was not the only Guadalajara resident with Leiden roots: at the beginning of the eighteenth century, a stream of Dutch textile workers…

We talk too little about silence, thinks university lecturer Gerlov van Engelenhoven. He has been awarded a Veni grant to investigate the role of silence in protest movements. Does silence sometimes really say more than a thousand words?

Leiden University's Kiem grants aim to help develop new interdisciplinary and interfaculty collaborations and encounters. In the first round, a Kiem grant was awarded to a group of researchers from the Faculty of Archaeology, the Faculty of Social Sciences, and the LUMC for the organisation of a symposium…

Researcher Max van Duijn and PhD student Bram van Dijk apply language models to stories told by children to investigate empathy. For this research, they received the Best Paper Award at the Computational Natural Language Learning Conference in Singapore.

Why doesn't the Surinamese resistance hero and independence fighter Anton de Kom have a memorial site in his former hometown, The Hague, while there are streets named after colonial leaders? The students of university lecturer Anne Marieke Van der Wal-Rémy are committed to the erection of a statue.

Roll-up solar panels, bendable phone displays, or better computer chips… The EU project STIBNITE investigated the next generation of semiconductors, made from organic materials based on carbon, nitrogen, and boron. The project has now concluded. During the Open Science Debate on 1 July, the group will…

For many years, he was active in various management positions at the LION and even after his retirement he is still very involved. Professor Jan Aarts leads the Leiden hub of the Quantum Delta NL growth fund and is now temporarily responsible for national educational activities. In this way, he is helping…

ICT, Security

Bacteria temporarily live without their cell wall if dangerous viruses are near. A remarkable feature, as the cell wall is a sturdy barrier against threats. Still, the discovery has a logical explanation ánd might be of a consequence for fighting pathogenic bacteria, according to Véronique Ongenae,…

Keynote speakers: Jennifer Gaynor (University at Buffalo SUNY) and Sue Peabody (Washington State University)

For the health of the staff and the whole organisation, it is important to have an open and honest conversation about work pressure – and to do something about it. New websites offer faculties and staff tips and tricks on how to reduce work pressure.

Does gravity work the same when you look at the largest scales in our universe? That’s what Leiden physicist Alessandra Silvestri will study with a 2 million euro ERC Consolidator grant. ‘We assume that it does, but we don’t actually know.’

Modern humans and Neanderthals may have co-existed in France and Northern Spain for up to 2,900 years until the Neanderthals disappeared. This is what archaeologists from Leiden University and Cambridge University write in a new publication in Scientific Reports.

Maarten Feteris, the former president of the Court of Appeal and an alumnus of Leiden University, composed the piece ‘Intermezzo’ to mark the transfer of the rectorate during the Dies Natalis on 8 February 2021.

Why do violent incidents occur in prisons? And how do staff respond? Assistant Professor Esther van Ginneken will use a grant from the NWO Vidi Talent Programme to conduct research into these and other questions. She intends to make use of virtual reality.

Two Leiden University science communication projects have been awarded a WECOM grant through the Dutch Research Agenda (NWA). One project is a study of the history of the deaf community in the Netherlands and the other is of a condition that causes people to lose their way.

Between the 16 and 18 October, 85 Advanced MSc International Relationsand Diplomacy first-year students accompanied by team members embarked on an academic excursion to Brussels and various of its prominent EU institutions.

If we want to solve the complex issues now facing us as people and as an organisation, leadership is an absolute necessity: and then not only from supervisors and managers, but from everyone. You can use the set of cards and the animation developed specially for this purpose to gain insight into your…

How is it that the internet works so well, with billions of users sending millions of gigabytes all together every day? That's because the foundation of the internet is solidly set up. Yet sometimes there are problems on the internet. For example, when certain systems misbehave and disrupt the routing…

At the end of May, the Leiden English Language and Culture Programme, formerly known as the Department of English Language and Literature, celebrated its 75th anniversary (starting from the appointment of the first professor of English Studies). Over 220 alumni, staff present and past, and students…