In a new Transforming Society article, Salvador Santino Regilme, Associate Professor and Chair of the International Relations Program at Leiden University, critiques the Trump administration’s US–China tariff war as a covert instrument of domestic class warfare.

From 1 October onwards, Dennis Claessen and Marcel Schaaf will be the new directors of education of Biology. They will replace Han de Winde. Schaaf will be responsible for the bachelor, while Claessen will mainly focus on the master tracks of Biology. We gave students and the education office the change…

What do you do if you have a book from the sixteenth or seventeenth century, but you suspect that the binding contains a fragment of a medieval manuscript? University lecturer Thijs Porck has received an NWO grant to experiment with a camera attached to a tube. 'The project boils down to keyhole surgeries…

You can turn to a confidential counsellor to share any questions or concerns you may have about issues such as inappropriate behaviour and breaches of research integrity. They’re here to listen, offer support and help you find solutions. What happens next is entirely up to you. Confidential counsellors…

Green cities and a well-protected food system: Roy Remme and Oliver Taherzadeh study ways to achieve these. But how can their scientific findings lead to societal change? They share their experiences with science-policy initiatives.

What motivates citizens to participate in a citizen science project on plastic pollution? And does that motivation change over time? Liselotte Rambonnet tried to answer these and other questions with her research on the Clean Rivers (‘Schone Rivieren’) project. Rambonnet is a PhD student at the Institute…

Symposium

As a student, you’re expected to write papers and collaborate. But how do you do that if you’ve never been taught? Thanks to the Grassfields grant, the Science Skills team can scale up its Skill’Ed project and finally provide students with structured support in essential skills.

What does a 19th-century exhibition of traditional utensils from the province of Zeeland tell us about the current rise of populism? A lot, Ad Maas will say in his inaugural lecture.

Ana Oleart came to The Hague from Barcelona to study for her bachelor's degree in International Studies. After completing no fewer than two master's degrees at Leiden University, she now works in the HR department of a large hotel chain.

A patent for what may be a potent, new antibiotic. And: a clear overview of promising approaches to overcome a crucial resistance tactic employed by bacteria. In the span of one week, two researchers from Leiden are receiving their PhDs, each of them on an important step in the battle against bacteria…

You may have noticed this happening more often: your municipality sends you an online questionnaire to find out your opinion on the renovation of a certain area or the design plans for a new district. But how inclusive are these online platforms where citizens can participate in decisions on government…

How do you study the growth of microorganisms, the spread of epidemic diseases or the healing of wounds, without actually performing experiments? Daoyi Wang, PhD candidate at the Mathematical Institute, worked on a specific mathematical model that can describe the growth of microorganisms and many other…

Legal philosopher Bart Jansen teaches at universities around the world. In an interview two years ago, he spoke about his professional fascination for dictators and wars. Since then, the world has undergone major changes. High time for a follow-up interview.

As technology transforms healthcare and services come under mounting pressure, one question remains the same: Will the advice or treatment offered help patients lead the lives they want to live? In her inaugural lecture, Professor Maxime Kummeling stresses the importance of quality.

What will happen if the lights in a large part of the city are switched off? How many stars can you see without all that light pollution? This is what researchers, artists and the residents of Leiden are going to investigate during Seeing Stars Leiden on 25 September. ‘Leiden is the ideal place for…

The Mindlab theatre and discussion programme will start at the Faculty of Humanities at the end of September. University lecturers Tazuko van Berkel and Sara Polak were moderators at the first session.

Everyone has been watching the attack on Ukraine, a war on the European continent, with a sense of foreboding. It will bring devastation, loss, suffering and worry and it raises questions. With these words, Rector Magnificus Hester Bijl opened the meeting on the war in Ukraine at Wijnhaven on Thursday…

At the start of the new year, we celebrate the release of a new selection of collection items into the Public Domain. This year, Leiden University Libraries (UBL) is making approximately eight hundred items freely downloadable via Digital Collections.

Helping industry to spot dangerous and climate-harming gas leaks faster, cheaper, and more reliably than today’s tools: that's what Leiden University and BigCircle Ventures set out do in a new spin-off company.

The West has missed several opportunities to prevent the invasion of Ukraine or, at the very least, to better support the Ukraine, claims Frans Osinga, Professor by special appointment War Studies.

She has been here for almost three months: Susanne Roodhuijzen, knowledge broker of the Faculty of Social and Behavioural Sciences. Her goal? To act as a ‘matchmaker’ both inside and outside the Faculty. But what does that mean, exactly? She introduces herself.

Dr Mamadou Hébié, Associate Professor of International Law at the Grotius Centre for International Legal Studies, served last week as legal counsel in the world’s first advisory proceedings concerning climate change before the International Tribunal for the Law of the Sea (ITLOS), on the one hand, and…

Alumnus Wandile Madalane tells us how his time in Leiden has made it easier for him to engage with renowned figures and how he does NOT miss the rain.

Even embryos can become embroiled in an evolutionary arms race with another species. Leiden biologists demonstrate this with larvae of the rosy bitterling that parasitize the gills of freshwater mussels. They published their research on February 19 in PNAS.

A collaboration between linguists, geographers and anthropologists aims to uncover how languages spread across South America over thousands of years. Associate Professor Rik van Gijn is responsible for the linguistic side of this NWO project.

Alumnus Ben Smulders has worked for the European Commission for the past 33 years. ‘The discipline and depth that I experienced during my student days has helped me through various stages of my professional career.’

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.

War and peace studies. A topic that is more relevant than ever because of the war in Ukraine. In September, the MSc Crisis and Security Management (CSM) will start a new track: War and Peace Studies. CSM’s Programme Director, Ernst Dijxhoorn, discusses the new track, how it was created and what students…

A beautiful speech by vice-dean Bart de Smit, a mini-lecture on exoplanets and the presentation of three faculty awards. That's how we started the new year at the faculty. Together with colleagues and students, we raised our glasses to a new year full of great collaborations, science and education.

'Frans Rodenburg is an excellent teacher who is able to convey difficult information,' say his students. In his statistics classes, he wants to make students enthusiastic for his beloved subject. 'Most students are convinced that statistics is not for them. I am here to convince them otherwise.' Rodenburg…

Since 2009-2010, the West viewed China as more assertive. Especially after Xi Jinping came to power in 2012, the country abandoned Deng Xiaoping’s ‘low profile’ foreign policy. Friso Stevens explains in his dissertation where this change has come from. The dissertation defence is on 28 March.

On December 10, Kazakh pianist and composer Rakhat-Bi Abdyssagin will perform at the Stadsgehoorzaal in Leiden. A remarkable event where music and modern physics come together.

Prof. dr. ir. Bas Rietjens of the Dutch Defense Academy (NLDA) has been appointed Professor by special appointment Intelligence in War and Conflict at Leiden University’s Institute for Security and Global Affairs (ISGA). The appointment of Rietjens is the result of a more intensive collaboration between…

There’s a change of staff at ACPA. The institute is bidding farewell to Professor Janneke Wesseling and welcomes Anke Haarmann, who is not only a new professor, but will also take over Wesseling's responsibilities as Director of PhD Arts. In this interview we look back and ahead with them.

Lawyer, economist, politician and women’s rights activist Lizzy van Dorp is the 100th entry in our Top 450. Who or what is your favourite?

On Tuesday 20 September, David Kilcullen, one of the world’s leading experts on modern warfare, visited Campus The Hague of Leiden University to discuss future developments in special operations and the escalating competition between great powers.

How do you detect life on a planet light years away? During her PhD research, astronomer Willeke Mulder worked on an instrument to detect such signals – culminating in an experiment from a hot air balloon.

The bachelor’s programme in Dutch Studies marked its fortieth anniversary on 22 May with a festive gathering in Leiden.

From Dutch Prime Minister Rob Jetten to American ambassador Joseph Poplo, and from former defence minister Kajsa Ollongren to General Onno Eichelsheim, prominent figures attended the first Next Gen Security Conference in The Hague. ‘The Netherlands and Europe must take more responsibility for their…

Two colleagues have each received a prestigious Vidi grant. We spoke to criminologist and Associate Professor Hilde Wermink, and Eduard Fosch Villaronga, Associate Professor of eLaw, about what this grant means to them and their research plans.

PhD defence, Performance

Running, walking or horseback riding: colleagues from the Health, Medical and Neuropsychology unit are each working up a sweat this month to raise money for research on Multiple Sclerosis. How much have they collected so far?

‘By cleverly combining new techniques for analysing DNA at the level of individual molecules, we can achieve real breakthroughs in research into conditions such as dementia,’ predicts Professor John van Noort. Together with four leading biophysics research groups, he has written a review article in…

The Faculty of Archaeology is running a funding scheme to assist small-scale projects that contribute to diversifying archaeological practice in all domains, including classrooms, laboratories, museums, and the field. We discuss the grant with two representatives from the Diversity Committee: Tuna Kalaycı…

Are magnetic fields older than the first light? And how did they influence the development of our universe right after the Big Bang? Cosmologists from Leiden, Groningen, and Utrecht are now collaborating to investigate this.

Limburg lawyer Roger Cox has caused a legal revolution. With high-profile cases against the Dutch state and Shell oil company, he transformed the law into a tool to enforce climate policy. Leidraad alumni magazine spoke to him about a life defined by radical choices for a better world.