Five mathematics students from Leiden University and their coach stood out this summer in Bulgaria at the IMC: the International Mathematics Competition for university students. Lance, Ryan, Casper, Mads and Lars tackled tough maths problems and also made the most of the Bulgarian sunshine.

Guus Heerma van Voss, professor emeritus of labour law, delivered his farewell lecture on 18 October and held a mirror up to his colleagues and himself. Had they done enough to ensure the welfare state keeps up with the times? ‘Did we just stand by and watch?’

What is written in law and what equality, inclusion and diversity mean in practice is not always the same. This was the focus of this year’s D&I symposium on 13 January. The plenary sessions were watched by hundreds of participants and there was a wide range of workshops covering different aspects of…

Research on the Greek and Roman times often focuses on important leaders, writers or politicians. However, Patricia Kret is more interested in the normal people living in these times. Her research focuses on amulets which were often used, for example to cure diseases. Why did people believe so strongly…

The International Astronautical Congress (IAC) that took place last week in Paris was extremely successful for IIASL.

Psychologist Ellen de Bruijn is investigating what hormonal fluctuations do to women's behaviour and well-being. The National science funding body NWO honoured her research with a Vici grant; earlier this year she received an ERC Consolidator Grant. Read the interview with De Bruijn about her resear…

“Is it possible to restore antibiotic sensitivity in resistant bacteria?” Dr. Tingjie Guo wondered. “Watch me and learn”, phage responded. Dr. Tingjie Guo received an open competition XS domain ENW grant from the Dutch Research Council (NWO) to investigate the evolutionary trade-off of antimicrobial…

After nearly five years as President of the Executive Board, Annetje Ottow will be stepping down from the role as of 1 September. During her time as President, she helped shape the university’s strategic direction, strengthening its regional, European and international profile. Sustainability, and dignity…

Ambassador Hyoung Chan Choe of South Korea paid his first visit to Leiden University Nov. 22, where he was received by President Annetje Ottow and Professor of Korea Studies Remco Breuker.

In studies, it is an old acquaintance, the p-value. But mathematician Peter Grünwald wants to get rid of it. The p-value is too susceptible to fraud and can lead to a distorted picture of reality and chance. That is why he wants to work with the e-value. De Volkskrant spoke to him about it.

Seger Kersbergen studied the Cabo Verdean nightlife in Rotterdam. He explains how their music describes their nightlife and daily lives.

Fancy seeing how your job is done at a university abroad? Project Managers Christina Schlüpen and Jeannette de Wolf from the Leiden Institute of Chemistry did just that. They both spent a week shadowing a European colleague: one in Bologna and the other in Berlin. This was through the Una Europe alliance,…

What’s really happening in the space between the cells in your body? With the Collagen Canvas project, students from Leiden University invite you to explore this question by blending science with art. This interactive artwork immerses you in the dynamics of the extracellular matrix—the invisible structure…

In his last week as interim cabinet minister, alumnus and outgoing Dutch Minister for Foreign Trade and Development Cooperation Geoffrey van Leeuwen set time aside to give a guest lecture at his alma mater, Leiden Law School. It was the perfect opportunity for a flash interview.

At one time, the railway from Kimberley to Kambove in Southern Africa symbolised prosperity and progress. Today, the exhausted mining towns along its route are marked by decay and pollution. Professor Jan-Bart Gewald has been awarded an NWO L grant to investigate the long-term global consequences.

Exploring the largest structures in the universe by looking at the tiniest particles? Lydia Stofanova, PhD candidate at Leiden Observatory and SRON Netherlands Institute for Space Research, dives into this intricate connection. In her PhD research, she explored how elements like oxygen influence the…

In the ‘Educatips’ column, psychology lecturers share their valuable insights about lecturing. This month: Franz Wurm is developing entrepreneurship workshops together with PLNT for master’s students of Clinical Psychology. ‘We want to teach students to develop from passive consumers to become active…

With the academic year coming to an end, the assessor role at the Faculty of Governance and Global Affairs (FGGA) is also transitioning. After three intensive years, Sterre Burmeister (25) is handing over the role to Mick de Kruijff (22), a fourth-year Public Administration student.

A breakthrough from the PhD research of medical chemist Elmer Maurits may help patients with autoimmune diseases and blood cancer in the future. But bringing a discovery from the lab to the clinic is not so easily done. Thanks to NWO's Venture Challenge, Maurits and his team will receive ten weeks of…

The housing crisis is affecting a substantial group of Dutch citizens and is one of the main election themes this year. How did things get this far and what should the new cabinet do in the coming four years to address the problems? Three Leiden researchers give their answer.

The cultural linguistic minority group of deaf people who communicate using sign language systematically experiences limited access to fundamental rights. Linguist Joni Oyserman identified this problem and has received a Meijers grant to fund her investigation.

Eiko Fried has been appointed professor of Mental Health & Data Science. This combined chair neatly fits the view that understanding complex mental health issues require the integration of statistical methods. ‘The idea that mental health problems are monocausal entities with simple etiologies is no…

The Executive Board appointed Sanneke Kuipers as full professor effective January 1, 2022. Her chair is Crisis Governance. She combines this chair with her position as education director of ISGA, the Institute of Security and Global Affairs. A conversation about working 24/7 in crisis management, her…

What started as pioneering work, has evolved over decades to become a renowned institute in 2025 with an internationally acclaimed master's programme. 'Almost everyone involved in the aviation and space sector knows us in Leiden.'

Finance, Organisation

We have all been deeply affected by the events that took place in Rotterdam on Thursday evening. Our colleagues at Erasmus Medical Center and Erasmus University have lost a valued colleague and have been involved in a very serious incident, which will undoubtedly leave deep scars. The witnesses to this…

Leiden University College students collaborate with peers in Gaza and Myanmar to explore the social determinants of health through storytelling, reflection, and shared lived experience.

Sander van Kasteren only noticed some small, subtle changes since he was appointed professor on 1 May. Still, he has to get used to the idea, even though he had been working towards the professorship for a few years. ‘I don't quite see myself as a professor yet.'

Fewer CO2 emissions, less airborne viral transmission, and a more sustainable form of food production: seven consortia of researchers and societal partners will put a budget of 32 million euros towards developing technological innovations. Important Leiden research on circular electronics by Prof. Dr.…

It was already the most cited publication ever written at our faculty, but now a new milestone has been reached. Last month, a paper by emeritus professor Jan Reedijk and his co-authors surpassed 10,000 citations — and the count keeps rising.

Young people are more likely to find long texts unappealing to read, particularly with all the digital distractions. To improve young people’s reading skills, Elise Swart and Hannah De Mulder are starting an innovative study to make reading fun again.

Education, Organisation

The Dutch Minister of Justice and Security is about to turn the entire volunteer fire brigade upside down. Not because it is good, but because it is assumed that it has to be done under EU law. This is tragic and unnecessary: there are strong legal arguments to defend the current set-up of the volunteer…

In this ‘Educatips’ column, Psychology lecturers share their most important lessons about teaching. This month: Zsuzsika Sjoerds and Sebo Uithol teach students critical thinking with their app 'Family Dinner'. With success: 'The old exams have become too easy.'

Neat strips of grass and perfectly manicured flowerbeds may look green and inviting, but they’re often not the best for nature. That’s why Leiden University is prioritising a comprehensive biodiversity plan over conventional greenery at the Leiden Bio Science Park (LBSP).

What looked like an ordinary coot’s nest turned out to be a five-star location with a remarkable backstory. Beneath a jetty on the Rokin in Amsterdam, biologist Auke-Florian Hiemstra discovered a true time capsule — complete with face masks from the COVID era and a Mars wrapper dating back to the 1994…

Inspired by a gift she received at a conference abroad, Laura Kamsma, coordinator of the FGGA International Office, went looking for new promotional goodies to hand out to the representatives of international exchange programmes at Leiden University - Campus The Hague. The gifts had to meet three requirements:…

He started out as a temporary staff member at the CML’s education office, and now – eight years later – Jasper Williams is the institute’s new Director of Operations. In this interview, he talks about entrepreneurship, making a social impact, and playing competitive bridge. ‘I like doing things properly,…

The Lorentz Center is a melting pot that is visited by researchers from around the world. ‘Miracles happen’ during the five-day interactive workshops at the Center. And there is an extra reason to celebrate the center’s 25th anniversary. On 28 April, the Dutch Research Council (NWO) and Leiden University…

People often say you should ‘do something that makes you happy’. Alumnus Benjamin Wegman certainly took that advice to heart. After graduating with a degree in tax law, he switched to brewing beer at a local brewery in Leiden.

Yousef Yousef (39), a successful entrepreneur in the water-quality industry, recently joined the Advisory Board at Leiden Law School. Read the interview about his career.

This month, Leiden University’s Joanne van der Leun steps into the role of Chair of Una Europa’s Board of Directors. She does so at an important moment of transition for Una Europa.

You should start working now, and the positive results will only be seen long after your term has expired. That is just about the worst thing you can say to politicians and policymakers. Yet that is exactly the message of two recent reports on sustainable resource use from the Centre for Environmental…

What does a student member of the Faculty Council do? What is it like to be a member of this representative body and how useful is it to be a member? Students Rassoul Coelen (FC 2020-2021 and presently member of the University Council) and Max Garcia Hoogland (FR 2021-2022) talk to us about their experiences.…

A cannon, a sabre, guns: these Sri Lankan objects had been in the Rijksmuseum for centuries. In early December, they were returned to Sri Lanka. Associate Professor of Colonial History Alicia Schrikker led the research that formed the basis for the restitution and published a volume on the findings…

Joëlle Koning has been appointed as Head of Student Affairs (OSZ) in the Faculty of Humanities from 1 July.

A course that concludes with a video pitch, instead of a paper or examination: Italian Language and Culture students each recorded their own knowledge clip, speaking to a wide audience about Italian cultural expressions. We asked Goran Bouaziz, Cameron-May Bosch and Katja Timmer what they thought of…

Organisation

There are many links between Leiden and the US. The highest office there has been held an impressive nine times by presidents with Leiden roots. This has led to memorable visits to Leiden University.

Psychology alumna Inge Schilperoord works as a forensic psychologist in the Pieter Baan Centre, a psychiatric observation clinic. Her debut novel 'Muidhond' about a man struggling with his paedophilic tendencies, has received the Bronze Owl 2015 for best Dutch debut novel. Schilperoord: 'The detective…