Workshop | TEAL series

Not everything that comes close to a black hole is swallowed by it. Black holes can also hurl material away, and that chance turns out to be considerably bigger than previously thought. Martijn Oei's accidental discovery and his subsequent research on it earned him a cum laude promotion on 12 Decemb…

Diversity and inclusion within the police creates opportunities but also meets resistance. Professor by special appointment and former police officer, Saniye Çelik, emphasises how ambivalent feelings about D&I are essential to the learning process and can lead to informed decisions and real change.

How much energy and greenhouse gas emissions can Dutch homes save? Xining Yang uses Leiden as an example and shows with his research how enormous the impact can be. At least, if we work harder on becoming more sustainable. Based on the models he developed, Yang will receive his doctorate on 28 June.

Jasper Knoester, decaan van de Faculteit Wiskunde & Natuurwetenschappen, blikt terug op 2025 in "het jaar van Jasper".

Dutch and Flemish partners, including Leiden University, are joining forces as the European Digital Media Observatory (EDMO) in the fight against the spread of fake news, and have received the support of the European Commission.

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.

Thursday 15 January starts with a long journey and ends with an equally long working day full of current issues. Jasper visits the Mathematical Institute with the scientific directors of our faculty and attends a meeting on collaboration with the Ministry of defence.

It was while wearing clogs at a Dutch theme park in Japan that Cindy Heijdra really got to know Japan. Over 20 years later, she is studying again: to be a primary school teacher.

Advancing Child-Friendly Justice Through Dialogue and Exchange in Santiago, Chile

A paper during her master's degree put student Luca Andrea on the trail of Roman coins. While on an internship at the Teylers Museum, she organised the coin collection and came across some fascinating stories. 'Coins have had all kinds of functions.'

Environmental scientist Rutger Hoekstra addressed the General Assembly of the United Nations on 12 April. And that’s quite a big thing to do. How do you get there as a scientist? And, more importantly, what was his message? In eight questions, Rutger explains what he does and why.

Leiden University and four other Dutch universities will appoint 51 PhD candidates to conduct solution-oriented research for and with the African continent.

The ‘Dilemmas of diversity’ research project is to receive a subsidy of 1.8 million euros from the National Research Agenda (NWA). Coordinator Marlou Schrover will be examining the diversity policy of Dutch cities in the present, past and future, together with 37 societal partners.

From 13 to 16 July, Leiden will host the EuroScience Open Forum (ESOF), the largest multidisciplinary scientific conference in Europe. Lars van Doorn from Leiden Law School will give a presentation.

Her father is a miller, so it’s hardly surprising that Esther van der Ent is also fascinated by windmills. Alongside her work at the Centre for Environmental Sciences (CML) and the Leiden-Delft-Erasmus alliance, Esther is now training to become a miller herself. ‘This craft mustn’t be lost,’ she say…

In August 2022 we welcome our new colleague Dr Letty ten Harkel as Assistant Professor in Roman and Post-Roman Archaeology. For the past ten years she has built up an impressive track record in the School of Archaeology at the University of Oxford. Read the interview about her background and research…

In order to build wind turbines and electric cars, we need tons of magnets. Currently, we import these mainly from China, which means Europe is very dependent on this superpower for the energy transition. This has to change, according to industrial ecologist René Kleijn. In the REEsilience project,…

Life cycle assessment (LCA) reveals the total environmental impact of products or production processes, and EU rules are going to make this even more important.

An international team led by astronomers at Leiden University has shown in laboratory experiments that sulfur can bind with ammonium under icy cosmic conditions and form a salt that sticks to dust and pebbles. The resulting sulfur salt not only helps to explain the mystery of the missing sulfur gas,…

In november 2023 is Anne Fleur van Veenstra, wetenschappelijk directeur van TNO Vector, benoemd tot bijzonder hoogleraar ‘Governance van data en algoritmen voor stedelijk beleid’.

Behind the scenes people are working hard on the vision and strategy plan of the Faculty of Social and Behavioural Sciences: a manifest of our priorities and ‘a pamphlet for change,’ according to Dean Paul Wouters and Board Secretary Jordi Kerkum. The faculty-wide conversation about our collective future…

Hanneke Hulst explaines how she is trying to bridge the gap between science and health care. ‘For a neuroscientist to actually contribute to solutions for patients, you have to work across disciplines.’

White clouds of ice-cold gas flowing across the floor. Magical, but be careful not to freeze your fingers off. We are of course talking about liquid nitrogen and helium. You may have seen the spectacular Freezing Physics science show by the student organisation Rino. But did you know that this commodity…

If a forged Vermeer or Rembrandt is discovered, it is world news. Yet tracing fakes has long been a low priority in art history. University lecturer Anna Tummers will receive an ERC grant of almost two million euros to change that.

At science festival 'Over de kop', surprising brain facts alternate with confronting stories from the operating room. Researchers explain why our brains love beans and why you should never ride a racing bike without a helmet.

This year, the second Hugo Weiland Thesis Prize of the Foundation for Austrian Studies has been awarded. This prize, in honour of the founder and long-standing chair of the Foundation of Mr. Weiland, is awarded to high quality theses dedicated to the history, culture, and politics of Austria and Central…

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…

Almost everywhere in the world where the post exists, the beadle is a ‘master of ceremonies’ who only makes his appearance on special occasions. In Leiden the beadle does much more. He is indispensable at dissertation defences and orations. He directs ceremonies and is a master at calming nerves.

In her dissertation, political scientist Alessia Aspide explores how public attitudes toward fiscal policy are formed. Her key finding: fiscal preferences are not shaped in a vacuum, but are deeply embedded in institutional, political, and societal contexts.

How can you figure out which points lie on a certain curve? And how many possible curves do you count by a given number of points? These are the kinds of questions Pim Spelier of the Mathematical Institute studied during his PhD research. Spelier received his doctorate with distinction on June 12.

Even with state-of-the-art technology, it is almost impossible to see: a cosmic neutrino. Yet scientists have managed to image this particle with a deep-sea telescope. And that could help to better understand our universe. Leiden particle physicists collaborated on this ambitious project, published…

One used 3D cell models to study colorectal cancer, while the other used machine learning for more efficient blood donation. For these achievements, Marieke Vinkenoog and Simon Christian Hansmann were awarded the Krijn Rietveld Memorial Innovation Award on Tuesday 2 September.

The FIFA World Cup will get underway in Qatar this November – an event that has attracted much discussion in recent years. This discussion is not only centred on sport. Human rights are in the spotlights in Qatar. On Friday 30 September, Leiden University organised a debate in which experts from various…

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.

Matheus Mendes was awarded the 12th Jaap Doek Thesis Prize at a ceremony on 13 December 2024 for his thesis on the right to read. The prize honours outstanding master’s theses in children’s rights.

Say biodiversity loss, and then say humanities. These two terms may not seem an obvious combination, but alumnus Simone Scholte explains that her Film and Literary Studies degree actually offers a unique perspective on the problem. She is therefore one of the 20 students participating in this year’s…

Since the beginning of September, it is a fact: our faculty has a new strategic plan. The plan outlines what we will collectively commit to in the coming years. Is that important? For sure, say our directors Suzanne van der Pluijm (Operations) and Bart de Smit (Education). ‘The purpose of a strategic…

Marlinde Kapteijn studied Public Administration at Leiden University and decided to apply for an internship after her bachelor. While she enjoyed the internship and was able to learn a lot, she also had to get used to it: 'I had not expected the ministry to be so hierarchical.'

Sustainability, health and wellbeing are key factors during the coming renovation of the iconic South Cluster of the Humanities Campus. The conversion of the original seven ‘houses’ to create a single spacious, light and attractive environment under a glass roof will earn an Excellent Level qualification…

In the past months of the coronavirus crisis, work continued steadily on constructing the Humanities Campus. The Arsenaal has been completed. Colleagues have moved to the Reuvens and Huizinga buildings, and the South Cluster is ready for the renovation to start. And now we have suddenly had to stop.

In January 2021, eLaw joined the Computers Privacy and Data Protection (CPDP) Conference that is about privacy and data protection. The group on Law and Digital Technologies at Leiden University put together a panel that combined perspectives on Art, Society, & Technology.

After two years of COVID-19 induced hiatus, the European Union Studies track of MA International Relations organized another successful study trip to Brussels. Over the course of three days the students had a chance to learn more about the EU institutions, meet lobbyists and interest group representatives…

Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life.

Bullying, abuse or a difficult divorce: many young people struggle with mental health problems after traumatic experiences. But why do some suffer much more than others? This is the question that Hannah Dorsman is exploring within the THRIVE project.

Astronomers led by Leiden PhD candidate Richelle van Capelleveen have, for the first time, discovered an exoplanet that has carved a bright gap in the protoplanetary disc around its star. This rare observation provides new insights into how young planets shape their surroundings.

Four PhD researchers of Leiden University have been selected to participate in the Europaeum Scholars Program 2022-2023. Two of them, Lena Riecke and Sophie Vértiter, are doing their research at ISGA. Time for a introduction.

Tahir Abbas was named full professor of radicalization studies by the Executive Board. This chair, according to Abbas, is an excellent opportunity for ISGA to broaden its current focus on terrorism and political violence. Abbas was interviewed about his ambitions, writing as a form of relaxation, and…

It was long thought that the early development of Japanese children's books served mainly as a propaganda tool of the state: the literature was supposed to have been written to shape children into perfect citizens. PhD student Aafke van Ewijk nuances this image. Children's book writers wanted to have…

As Professor of Translational Neuro-oncology, Marike Broekman researches how brain tumour treatment can be improved. She will discuss this in her inaugural lecture along with her work as a neurosurgeon and the importance of a positive workplace culture.