The Leiden African Studies Assembly (LeidenASA) held its Annual Meeting on 12 December. LeidenASA is the network of Leiden based Africa-researchers. Fifteen researchers gave pitches on their projects, and sketches of Leiden University's Africa strategy were outlined.

The digital society is vulnerable, as we have seen over the past weeks. Our Dean Paul Wouters shares his thoughts and encourages to recover during the time around the holidays.

All over Europe you will find ethnographic museums with large collections of indigenous objects from Latin America. These collections shaped the image of native populations in the European mind. An ERC Starting Grant allows Dr Martin Berger to look at the bigger picture, contextualizing individual collections…

Damien van Puyvelde has received funding (over 47.000 euro) from a new Research Council pilot for his study 'Open-source research and the war in Ukraine: intelligence for the people by the people?' We asked the researcher five questions about this project and the opportunities this creates for him.

In September, the Una Europa ELSEA project, Enhancing Scholarship in Eastern Africa, officially started. Now that the project has been running for a couple of months, it’s high time to check in and see how the project is going.

During his PhD research, mathematician Tyron Lardy worked on a new approach to hypothesis testing. Instead of the traditional p-value, he uses so-called e-values. These turn out to be more flexible – especially when you want to look at your results midway through the study.

With the number of externally funded research projects at the university on the rise and funding bodies setting ever-stricter requirements, it can be challenging to keep track of budgets, deadlines and reporting. The new Vidatum tool makes managing external projects easier for researchers and research…

The Ecuadorian Pachakutik party is one of the oldest indigenous political movements in Latin America. Despite not being very successful at the polls and hardly having organisational resources at its disposal, Pachakutik is still part of Ecuador’s political landscape. In her dissertation, Political Scientist…

Learn how to use Maileon’s editor and how to follow the editorial guidelines.

Since 2020, the Krijn Rietveld Memorial Award has been annually presented by dsm-firmenich for the best master's or doctoral research at the Faculty of Science in the field of life sciences combined with data science. As of 2024, this award will be split into three prizes with a broader scope of research…

Elena Maria Rossi is fascinated by black holes. Her appointment as a professor was a long-held wish, partly because there are so few female professors in her field. ‘My appointment is also a milestone for the Leiden Observatory.’

Since the introduction of ChatGPT, the tool has become immensely popular with students. The Faculty of Humanities is now developing its own bots that can act for students as an individual tutor. In January, product owner Julian van der Kraats assists at a workshop on this technique to interested Humanities…

A number of organisational changes have been implemented in the faculty office of the Faculty of Humanities. This has led to the creation of BAS: the department responsible for Policy, Advice and Strategy. Department heads Marcel Belderbos and Tim Lamers introduce themselves and the new department.

On Friday 5 February 2021 the online conference of the Dutch Platform of Empirical Legal Studies (ELS) took place. This conference served as a platform to bring young, enthusiastic and driven ELS scholars together in a research community and enable them to learn more and discuss about empirical research…

In collaboration with the Honours Academy at Leiden University, Eduard Fosch-Villaronga and Hadassah Drukarch from eLaw - Center for Law and Digital Technologies, coordinated a Pre-University Class on Robot Law.

Nurturing Student Creativity: Innovative Approaches to Sharing Scientific Results. Bridging Generations and Empowering Ethical Exploration in Anthropology Education

Taking part in TikTok challenges, online gambling, and forwarding nudes. ‘Why do adolescents take online risks?’, psychologist Neeltje Blankenstein wonders. Her research on online risk taking has been awarded a Veni grant by the Netherlands Research Council (NWO). Read her answers to five questions.

With the aid of artificial intelligence (AI), care professionals at the LUMC (Leiden University Medical Center) are able to calculate quickly and accurately whether a coronavirus patient has suffered serious lung damage. They do this by putting a CT scan through the AI software of the CAD4COVID-CT p…

No less than 33 project received a Leiden Kiem grant in 2023. How did they fare? Olga Bogolyubova shares experiences from her project ‘Interdisciplinary Approaches to the Study of Safety and Danger in the Digital World’.

The AI chatbot ChatGPT has a clear left-liberal bias when filling in the Stemwijzer voting advice application. This was discovered by master's student Merel van den Broek during an assignment for the Machine Learning for Natural Language Processing course.

The supermassive black hole at the center of the Circinus galaxy is being fed with gas by two spiral arms. This is what PhD candidate Wout Goesaert discovered. But only a small percentage disappears into the black hole, the rest is ejected.

The Executive Board is visiting the university’s institutes to find out what is going on. On 8 July 2025, it was the turn of the Institute of Environmental Sciences (CML), one of the fastest-growing institutes at Leiden University. ‘Our main aim is to preserve our planet for future generations.’

Eduard Fosch-Villaronga from Leiden University has been awarded a Starting Grant by the European Research Council (ERC). This grant of 1.5m euros enables talented early-career scholars to start their own pioneer project, lead a research team, and implement their best ideas at the frontiers of their…

Each year a staggering 18 billion chickens, turkeys, pigs, sheep, goats, and cows either die or are killed without making it onto someone's plate. Environmental scientists Juliane Klaura, Laura Scherer, and Gerard Breeman were the first to calculate this number on a global scale. 'Reducing these numbers…

Neeltje Blankenstein receives an LUF grant to conduct research on online risk behaviour among young people. What risks do young people take online and why? 'With this research, we not only want to help prevent serious risk behaviour, but also understand what drives young people to it.'

Are you keen to beat your friends or colleagues and win the European Championship football pool? Statistician Marjolein Fokkema has some tips that might increase your chances.

Yann Ryan recently joined the Institute for History as a postdoctoral researcher within the starting grant project 'Quiet Rebels? A Social History of Political Rhetoric’ under the supervision of Anne Heyer. Below, he introduces himself.

Ever heard of conversational artificial intelligence (AI)? Anyone who has ever interacted with Siri or Alexa is familiar with this technology. We use conversational AI every day these days and it is becoming increasingly important in service and sales. A consortium of Dutch scientists and companies…

An impressive 875 students from all corners of the globe are taking part in Orientation Week Leiden (OWL). After all the lockdowns in their own countries, they’re glad to meet up in real life in Leiden. What do they expect of their studies here?

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…

Algorithms solve problems. But which algorithm is best suited to which problem? During his doctoral research, Diederick Vermetten developed methods to figure this out. And that is important for the entire field.

In the Changemakers Lab course, psychology students Diana Shalkivska (left in the picture) and Anna Rytirova discover what happens when academic knowledge meets real-world complexity.

Last year, Dr. Henk van Steenbergen received a Grass Shoot grant to completely redevelop the research master's course 'Experimentation I: Programming Psychological Experiments'. The revised course was taught for first time last block and has just come to an end. Time for a brief recap.

X-ray and CT scanners are widely used devices in research, diagnostics and the industrial sector. And yet they are not nearly as fast and accurate as we would like. Mathé Zeegers is researching the newest technique in the field at the Centre for Mathematics and Computer Science: spectral X-ray imaging.…

Sustainable rose smell that can be produced on a large scale. Tobias Fecker made this into a possibility during his master's thesis, which was a collaboration between the IBL and the TU Delft. He wins the fourth edition of the Krijn Rietveld Memorial Innovation Award.

What does research support involve? And what should we do to improve the support for researchers at the University? We spoke to Maribel Adame Valero, research policy officer and external cooperation coordinator at the Institute of Biology and a member of the Leiden Research Support (LRS) focus group.…

Looking for a different approach in the ongoing discussions on the ethereal matter of Romanisation, Ana Zora Maspoli joined Miguel John Versluys’ research group as a postdoc guest researcher. While she has been active in our Faculty since February 2022, you may not have met her yet due to the Covid-19…

‘Very interesting’ is what two bachelor students have to say about the stories by Liesbeth van Vliet and Niki Antypa during the Psychology Science Day. The icing on the cake were the poster presentations about the bachelor's theses, admired and commented on by scientists and fellow students. Teachers…

After the death of the Prophet Muhammad, the Islamic Empire expanded at a tremendous pace. Within a hundred years, it stretched from the Atlantic Ocean to the Indian subcontinent. How did such a rapidly conquered territory become one empire? Professor Petra Sijpesteijn has been awarded a Vici grant…

Two of eLaw’s Advanced Masters students, Dimitra Laskari and Vasilis Xynoglas, presented their research on the Metaverse and Personal Digital Twins at the Neurocognition and the Reproduction of Space conference in Shanghai, China. The students presented on the rules for the Metaverse under the GDPR…

People can be easily mislead with graphs. But they don’t necessarily stay misled, the research shows.

Organisation

Mini organs-on-chips allow us to study how diseases develop and how drugs work. Although the technology is not new, it is becoming increasingly advanced. PhD candidate Bart Kramer hopes it will eliminate animal testing in the future.

At the International Online Conference 'Fair Medicine and Artificial Intelligence' organised by the University of Tübingen (Germany), Hadassah Drukarch, junior researcher at eLaw, gave a presentation on how current algorithmic-based systems may reinforce biases in healthcare. This topic forms part of…

Two Leiden legal scholars have been awarded funding from the KNAW pilot fund 'Science communication by scientists: Appreciated!'. The fund supports scientists who have demonstrated a continued commitment to science communication.

Care robots, medical treatments, deepfakes and self-driving cars all with the aid of artificial intelligence (AI). The BrAInpower exhibition at Rijksmuseum Boerhaave shows spectacular applications of AI and explains how it can make such huge leaps. Bas Haring, Professor of Public Understanding of Science,…

‘If it rains later, then I’ll take the car.’ In order to reason, we use sentences containing ‘if’ every single day. But how does that work exactly in the Dutch language? Alex Reuneker wrote his 628 page dissertation on the subject. Ceremony on 26 January.

Scientists have discovered that starlings and parrots can imitate the complex sounds of Star Wars droid R2-D2 remarkably well. Their study reveals how the structure of a bird’s vocal organ determines its vocal abilities – and how citizen science helps uncover it.

Do you recall all those drugs that were hastily proposed as potential treatments for COVID-19? In the event of a future pandemic, the goal is to offer an effective treatment more quickly and efficiently. To achieve this, a team led by Coen van Hasselt is developing a platform that can speed up the process…

Funded by a ZonMw grant, the LUMC and the Health Campus The Hague will be working with headache patients on research into the use of an electronic headache diary. This resource can help patients gain a better understanding of their migraine attacks and, together with the physician, produce the best…