The introduction of a compulsory coronavirus entry pass in the workplace is currently being considered behind the scenes. Dutch Minister of Health Hugo de Jonge spoke about this at the press conference on Tuesday 2 November. But such a measure is not without problems.

At the start of the year a lot of journals publish lists of their most cited papers of the previous year. Three papers published by Leiden archaeologists were ranked in the top 10 of the Journal of Archaeological Science: reports.

On the second day of the EL CID week, hundreds of new students set foot in ‘their’ law faculty for the first time. Today, they will be introduced to the history and ways of the University. Exciting and fun at the same time. ‘Things are getting real!’

Universiteiten moeten niet verbaasd zijn dat studenten ChatGPT gebruiken, schrijven de Leidse universitair docenten Femke Klaver en Alexander de Wit in Trouw. Want studenten reageren op efficiëntie en doelmatigheid. Hun suggestie: Leid studenten op om kritisch na te denken.

The EU proposal for a regulatory framework on artificial intelligence will not prevent the dangers of cybercrime or the spreading of fake news using ChatGPT. Cyber criminals can use the new technology to write harmful software, phishing mails and fake news.

Peter Pels, affiliated with the Institute of Cultural Anthropology of Leiden University, is one of the researchers. Together with Birgit Meyer (UU), he will lead the work package 'Heritage and the Question of Conversion'.

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…

Leiden University and the Leiden Bio Science Park can make a significant contribution to the earning capacity of the Netherlands. This is the finding of the National Investment Agenda presented today.

Imagine scanning lion dung or a mouse dropping and instantly knowing exactly what and how much the animal has eaten. Thanks to new DNA techniques, this is becoming increasingly feasible. PhD student Kevin Groen tested how effective these techniques are at unraveling the diets of wild animals.

What are the often invisible cognitive consequences of multiple sclerosis? Maureen van Dam mapped these out during her doctoral research. 'People usually notice the physical symptoms, but the cognitive symptoms deserve at least as much attention.'

When we think of unethical medical experiments, we tend to think first of Nazi Germany. What is less well known is that experiments were also carried out in colonised areas without the explicit consent of the test subject. University lecturer Fenneke Sysling has received a European grant to research…

What started as an idea during a social gathering led to an unexpected breakthrough in research on resistant bacteria. Biologists and chemists from Leiden developed a new substance that proves to be effective against bacteria resistant to antibiotics. They published their discovery in Nature Chemist…

No more ones, twos or threes, but focusing on development opportunities. This summer, the Faculty of Humanities will start a pilot for the new Performance and Development Interviews (PDI). HR adviser Marion Sluijs tells us more about it.

Collaboration is worthwhile. A joint LUMC and Leiden Law School project has received €142,500 from the Dutch Research Council (NWO). This grant will advance research into the law and ethics of regenerative medicine.

On January 1st Jasper Knoester started as our new dean. How is he finding it? 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.

eHealth can improve our lifestyle without the involvement of a healthcare provider. Talia Cohen Rodrigues investigated the possibilities for people with cardiovascular diseases. ‘People with a low socioeconomic status may be more difficult to reach with eHealth.’ She will defend her doctoral thesis…

David Versluis successfully simulated an infant gut virtually. This is crucial for research on improvements in formula milk. Currently, such research primarily relies on diaper contents, which is not optimal. Versluis defended his doctoral thesis on April 23.

For decades, linguists have racked their brains over the question of precisely how the syntax of various languages is different. PhD candidate Martin Kroon has developed a computer system that brings us closer to finding an answer. His PhD defence is on 10 November.

'It gave our team a big boost to hear that our work was valuable,' says medical chemist Elmer Maurits about the moment they won the Venture Challenge. With their company Iprotics, they want to develop a drug that can better treat patients with autoimmune diseases and blood cancers. 25,000 euros of prize…

The LUMC, Leiden University and The Hague University of Applied Sciences want to help health professionals support behaviour change in the population. Such change would help people live healthier lives and reduce their risk of disease. The Municipality of The Hague is supporting this educational project…

In recent months, the Work Balance in Action core group has taken several steps to improve the work balance at the Faculty of Humanities. The programme is now ready to be shared more widely across the faculty. Core group members Annemiek Hogendorp, Jaap Kamphuis and Ylva Klaassen tell us what to exp…

The prestigious journal Science Translational Medicine has published a study by researchers from the Institute of Biology Leiden (IBL) on a potent new antibiotic that can overcome resistance. ‘The idea was to tweak the original antibiotic and create a next-generation drug’, says Nathaniel Martin, professor…

Students presented the prototypes of educational tools they made in the first ten weeks of the new minor Living Education Lab. We asked two students and a teacher about their first experiences in this minor.

Joeri Reinders, universitair docent bij het LUC, ontving een NWO-subsidie voor het project 'Het KlimaatCasino'.

Did he dare take a gamble with his PhD research? Jeroen Methorst didn’t have to think long about it. It could fail or turn out very well. The latter is the case. Methorst developed a computer system that helps researchers find the protein they need. ‘Our whole group is now using this program.’ Methorst…

How do you get more interaction with your students during class? Paz Gonzalez has devised a method by which she gives her students an active role during class, turning (even large-scale) lectures into a seminar.

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.…

After the summer, the SPSS statistics programme will be replaced by the new ‘R’ software for first year students. Hemmo Smit and Sjoerd Huisman, both lecturers in Methodology and Statistics, initiated this major change in the curriculum. That did not happen overnight.

Nausea, neurologic pain and hair loss: some of the severe side effects of chemotherapy. Not necessary, biochemist Liyan Zhang showed. Together with Leiden biologists and others, she achieved great results with a drug that is only active in combination with light. Zhang will defend her PhD on 4 July.

AI-related activities and programmes are springing up throughout the university. In research, for example, at SAILS, and for staff in workshops and co-creation labs. As an AI champion at the ISSC, Julian van der Kraats is involved in various AI developments.

With a single sample of water or soil, researches can analyse the DNA of everything that is living in that environment. During her research, PhD candidate Beilun Zhao discovered a way to analyse not only the kind of species, but also the age of the species in a water sample. The method showed its first…

What do ten-year-old children and chatbots have in common? PhD researcher Bram van Dijk studied language development in both children and AI language models. ‘It’s actually quite practical that we attribute human traits to a chatbot.’

During the course BBO II: Multi-Level Governance, students learn to make the link between theory and society by completing a challenging practical assignment.

Jeroen van Gessel’s lecturers didn’t always have time for extensive feedback on his written assignments. So, together with tech-savvy friend Menno Hahury, he founded Eduface, a startup to develop an AI teaching assistant. ‘The first users now work three times faster.'

Hanne Cuyckens, Michiel Dam, Anja van der Voort, Daan Weggemans and Paul Gobée have joined the Leiden University Teachers’ Academy. Lecturers from the academy can exchange experiences, develop themselves and share their knowledge and expertise with the rest of the university, for example through the…

Koen Keijzer combined three mathematical models into one unified system capable of making meaningful predictions about how cells form blood vessels. This helps biologists studying the chaotic, leaky blood vessels found in and around tumours.

Five Leiden researchers have been awarded a Consolidator Grant by the European Research Council (ERC). This grant of up to two million euros will enable them to continue and expand their scientific research.

At Leiden University, there is plenty of experimentation with good ideas to make education even better. But once a project’s pilot phase is over, it can be difficult to find support and momentum for the next step. Grassfields is a yearly funding scheme available for upscaling educational innovations.…

Juan Masullo (Leiden University Institute of Political Science) receives a grant from the Elise Mathilde Fund/Leiden University Fund to conduct his research project ‘Forging an Anti-Mafia Culture: Observational and Experimental Evidence from Italy’. Masullo aims to find out what ordinary Italians think…

How does the soil we grow our vegetables in, affects the health of our gut? And does a healthy soil gives crops a better quality and taste? These are some of the questions Soil ecologist Emilia Hannula and a big consortium will work on. With an NWO-KIC grant of 1.8 million, CML, IBL, FGGA, the LUMC,…

How can we best treat infectious diseases in people with obesity? Hospital pharmacist and PhD researcher Koen van Rhee studied how obesity affects blood levels of two commonly used medicines. He also developed a method for pharmaceutical companies to test new drugs on this patient group.

How do we at Humanities ensure a better work balance and more job satisfaction? A group of colleagues considered that question on Tuesday afternoon, 31 January. Two members of Academia in Motion also joined in the discussion.

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.’

In early 2026, the Ethics Committee aims to launch a new registration procedure that will allow researchers with a low ethical risk to be assessed more quickly. To assess this risk, the committee will be testing a list of nine screening questions in the coming months. Feedback is welcome.

Learn to program, gain knowledge of AI methods, or use it in a research project at the LACDR. With the introduction of the innovative digital learning environment ‘Digital Labcoat’, Biopharmaceutical Sciences bachelor students can further develop their computational skills.

Depression and anxiety disorders among youth are causing major problems worldwide. The mechanisms involved are still unknown, however. Moji Aghajani – Assistant Professor at the Institute of Education and Child Studies - aims to provide new insights with his research "Youth mental health meets big data…

In November, Intigam Mamedov joined the Institute for History as a postdoctoral researcher. Below, he introduces himself.

Building a sustainable, international and interdisciplinary consortium for developing evidence-based communication strategies about Antimicrobial Resistance. That is the objective of a new project between researchers from Leiden University, VU Amsterdam and Stellenbosch University in South Africa, made…

In ancient times, the desert in the Udhruh region in Jordan was transformed into a green oasis. An intricate network of underground water channels was part of an ancient system of water management, storing water and preventing loss through evaporation. Archaeologist Mark Driessen found a new way to…

Four university medical centres, including the LUMC, are joining forces to increase pandemic preparedness in the Netherlands.