Dr. Joana Cook and Dr. Graig Klein, assistant professors at the Institute of Security and Global Affairs of Leiden University, have been awarded a Google Trust & Safety Research Award for their project Countering Violent Extremist Content Online: A Multidisciplinary Approach.

The journal Philosophical Transactions of the Royal Society – Biological Sciences published its theme issue ‘Conflict across taxa’ on 4 April, which was edited by Professor of Social and Organisational Psychology Carsten de Dreu. Together with researchers from other disciplines he provides more insight…

It was more than two years in the making, but despite the delays, giving up was not an option. In May, eighteen staff members of LUCAS and the Faculty of Archaeology visited NIMAR.

Starting September 2022, Foteini Tsigoni is tasked by the Faculty of Archaeology to bring the different nationalities within the faculty community together. Herself an international student, she experienced culture shock wile adapting to the Dutch way of life, and is committed to help out new and current…

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.

The pesticide thiacloprid turns out to be more harmful than previously thought. It can disrupt the lives of freshwater invertebrates and their communities, upsetting the balance and functioning of entire freshwater ecosystems. This was shown by ecologist Henrik Barmentlo and colleagues, their research…

Microorganisms that temporarily ‘go to sleep’ play an important role in the evolution and survival of a population. Mathematician Shubhamoy Nandan conducted research on the effect of this characteristic called ‘dormancy’ in a novel mathematical model.

PhD candidate Jiangnan Ding explores how you can design a thick slab of rubber in a way that it might act as a mechanical computer bit. This so-called mechanical metamaterial is pushed in a specific way to change its shape. ‘With a very simple material, we might be able to do simple calculations in…

A higher level of legal firearm availability does not lead to more violent deaths in Europe but does lead to more female deaths.

This year, Leiden University College (LUC) celebrates its 15th anniversary with the theme ‘Global challenges, local impact’. This theme highlights how LUC tackles global issues through education and research while making tangible contributions to Dutch society

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.…

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…

If you look at the postwar cartoonists of Dutch origin, Bernhard Willem Holtrop is certainly the most interesting, according to Frenk Driessen. He wrote his PhD thesis on Holtrop - who drew for HP/De Tijd and Charlie Hebdo, among others - and then also published it as a book.

Lawyer and human rights activist Lilian Gonçalves-Ho Kang You is the new Cleveringa professor.

With the final weeks of the year in full swing, many students are experiencing stress. This is where a chat with the student psychologist can bring some relief. Martine Efting Dijkstra explains what she and her colleagues can do.

Quantum technologies are in demand worldwide, but until now Leiden students could not specialise in them. The new master’s program QIST (Quantum Information Science and Technology) is going to change that. Researcher and professor Jordi Tura i Brugués: ‘We need to train the next generation of quantum…

Within the same species of butterfly many different wing patterns can occur. How is this possible? According to researchers Ben Wielstra and Emma Berdan, of the Institute of Biology Leiden (IBL), the answer lies within supergenes. A supergene is a part of a chromosome that contains many strongly linked…

Developing new drugs is a difficult process. With the aid of artificial intelligence, Pharmaceutical scientist Xuhan Liu has developed methods that can help make drug design cheaper and faster. PhD defence on 15 February.

Hans Slabbekoorn is specialised in animal sounds. On 1 July, he was appointed professor of Acoustic ecology and behaviour. A great honour, according to the new professor. ‘This job never gets boring, whether I am investigating the urban jungle or marine noise.’

Understanding the behaviour of tiny droplets in our cells could aid the search for new treatments. A team of Leiden researchers has developed a groundbreaking method to study how these droplets transition from liquid to solid. This change plays a role in various diseases, including neurodegenerative…

Astronomer Joseph Callingham and his team have observed for the first time a clear signal from a giant burst from a star outside our solar system. This would have a devastating impact on any unfortunate planet orbiting the star.

The war in Ukraine has lasted almost two weeks now. What does Putin expect to achieve with his invasion and how big is the chance that the West will get involved? We phoned André Gerrits, professor and expert on Russia.

Two Cleveringa books from Theo ten Kate's law library were donated to Leiden University by grandson Sebastiaan ten Kate on 24 November. They are the dissertations of W. Hugenholtz and J.G.L Röder, both PhD students of Rudolph Cleveringa. Ten Kate: 'The University is the right place for the books. Here,…

Whereas most outgoing professors are offered a congress, Nico Kaptein's former students and PhD students took a bigger approach. They treated him not only to a farewell congress, but also to a two-week tour of Indonesia, filled with lectures, and trips.

Student of International Studies Susanne Reitsma has a remarkable passion: water. In April 2015, she was elected vice president of the World Youth Parliament for Water, in which capacity she works for worldwide access to clean drinking water and sanitation. What does Suzanne find so special about water?…

Our dear colleague and friend Kathy MacDonald passed away unexpectedly on August 9th, 2022, a few days after her 46th birthday. Her sudden passing came as a tremendous shock to her colleagues and friends at the Faculty of Archaeology and to colleagues and former students both in The Netherlands and…

That it was students who started the protests in China against its zero Covid policy makes things more dangerous for politicians. China expert Frank Pieke explains the role of students in China, what makes the protests unique and what might happen next.

Physicist Kaveh Lahabi’s research on quantum materials led to the launch of a new company: QuantaMap. With his colleagues, he developed a sensor that will improve the production of quantum computer chips. ‘It turns out that what I need for my fundamental physics research is also very useful for the…

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…

This month marks the two-hundredth anniversary of the deciphering of Egyptian hieroglyphic writing. NINO, the Language Museum, Things that Talk and the National Museum of Antiquities are seizing the opportunity to organise the first Week of Ancient Writing.

Rector Magnificus Hester Bijl can see dilemmas but above all opportunities in the search to increase the societal value of research in Leiden.

There are lots of important items on the education and teaching agenda for 2024. Reaccreditation for the Law programmes including Notarial Law and Tax Law degree programmes, preparations for the implementation of the Kernvisie Bachelor, a new online teaching platform and a Teaching Fair, to name just…

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.

On 6 November, FSW colleagues gathered for the latest Food for Thought lunch meeting, focusing on “Politics and Society in the Aftermath of the 2025 Dutch Elections”. The event was opened by Joop van Holsteyn, who highlighted the purpose of the Food for Thought series: to create space for informal academic…

Developing a digital guest lecture for high school students. Jan Sleutels was immediately enthusiastic when he got asked to do this. The end result? Together with his colleague Maarten Lamers, he created the guest lecture 'Thinking about Artificial Intelligence'.

In the space of seven weeks, the staff of the LUMC and Leiden University have left home more than 35,000 times for a short walk, or an Ommetje as it is known. Healthy University Leiden launched the Ommetje walking challenge to encourage its staff to adopt a healthy lifestyle. Thus far this has resulted…

Julia van Alem had never held a camera before, but she and her classmates were appointed as the City Photographer. ‘This project helped me learn how to create my own work better.’

Professor Jasper Knoester has been appointed Dean of the Faculty of Science at Leiden University. He will take up the role on 1 January 2022. Knoester is currently Dean of the Faculty of Science & Engineering at the University of Groningen. He succeeds Paul Wouters (Dean of the Faculty of Social and…

On 24 November a High-Level panel discussion on the occasion of the signing ceremony of the memorandum of understanding between the NATO Civil-Military Cooperation Centre of Excellence and the Institute of Security and Global Affairs and the Faculty of Governance and Global Affairs took place at Campus…

‘If we don’t start talking about this, who else will?’ This is what Arjan Lankester, paediatrician/immunologist at the Leiden University Medical Center (LUMC) and Professor of Paediatrics, thought when it seemed that various extremely effective gene therapies for rare diseases would no longer be available…

A world-famous light experiment from 1801 has now been carried out with sound for the first time. Research by physicists in Leiden has produced new insights that could be applied in 5G devices and the emerging field of quantum acoustics.

CWTS will get a new board of directors for the coming three years, starting on 1 January 2024. The Faculty of Social and Behavioural Sciences of Leiden University has appointed Ludo Waltman as scientific director and Tjitske Holtrop, Wolfgang Kaltenbrunner and Clara Calero Medina as deputy directors.…

How do atoms and molecules end up forming planets? That's what astrochemist Julia Santos studied during her PhD. She discovered the dominant process behind the formation of methanol in space – a finding that surprised the entire field.

“We are proud and happy to receive this grant. It will enable us to do truly innovative fundamental research with a direct link to practical applications.” Michiel Westenberg is looking forward to investigate the effects of age and social anxiety on eye-contact. Together with Esther van den Bos he has…

The decolonisation war in Indonesia was violent partly because the Dutch military operated on the conviction that ‘an uprising had to be forcibly suppressed.’ This what historian Christiaan Harinck from the KITLV discovered in his PhD research.

Academics increasingly face threats, intimidation and abuse. The WetenschapVeilig platform has been launched to address this. Academics who are being threatened or intimidated can seek help from the platform 24 hours a day. It’s good that we now have this platform. But at the same time, it’s awful that…

How do young zebra finches learn to sing? A research team led by researcher Katharina Riebel has developed a ‘RoboFinch’ to study just that. She and colleagues in the 'Seeing voices' research consortium have spent the past four years designing the robotic bird. And with success: young zebra finches…

To truly understand Dutch literature, we have to look beyond borders. At least, that is the view of Sander Bax. From 1 August, he will be Professor of Contemporary Dutch Literature and Culture in a Transnational Dynamic.

A time-lapse of the universe in more detail than ever before: that’s the aim of the NSF–DOE Vera C. Rubin Observatory in Chile, which will unveil its first images of the night sky on 23 June. Researchers at Leiden Observatory have played a major role in making it all possible.

For four years, Vicky Beckers examined thin slices of wood under a microscope, mapping the anatomy of two plant families. Her research helps identify different wood species, benefiting both the timber trade and archaeology.