Did you know that Leiden University has an active staff association? As a member you can get to know colleagues in an informal setting during activities such as cooking, playing padel, going on a boat trip or doing Christmas shopping. But, say board members Tom Stapper and Jeanine Rosheuvel, it’s fine…

The year 2025 is a special milestone: we’ll celebrate our anniversary as a university community together with all the faculties. On 7 February, the Dies Natalis will mark Leiden University’s 450th birthday. Leiden Law School is one of the faculties also celebrating 450 years. So, at our faculty extra…

A team of three students affiliated with Leiden University is shedding new light on the lives, diets, health, and mobility of individuals buried at the historic church site in Koudekerke, Zeeland. The project, a collaboration with the Walcherse Archeologische Dienst and funded by the Municipality of…

The new institute manager of the IBL studied biology for six months, but went in a completely different direction: development cooperation and the financial sector. Three decades later, Resi Janssen is making a radical career switch. Or isn’t she? 'In ten years’ time I want IBL to be in a new, sustainable…

Before patients can take a pill, scientists often spend years in the lab developing and testing a candidate drug. That often includes experiments with laboratory animals. As head of the rodent facility, Ilze Bot and her colleagues ensure that these experiments are conducted in an ethically responsible…

Major developments worldwide are creating new challenges for society. The pandemic has hit us hard, for example, and we are already feeling the effects of global warming. How can society and politics deal with the urgent problems of our time? That is the theme of the Global Transformations and Governance…

On Monday, 13 October, Jasper will travel to Brussels with a delegation from Key Region Leiden. Why is this collaboration important? And who will he be having dinner with that same evening in Voorschoten? Jasper shares his account of a long and interesting Monday.

The gas prices now exceed 300 euros per megawatt hour – a record. The transition from fossil (natural gas, coal, oil) to renewable energy is needed and soon. But how do you get a society (and its citizens) to switch to sustainable energy?

Turning beer waste into a useful, sustainable product. That was the mission of students from Leiden at the international BISC-E event. The biology students challenged themselves and won third place in the Dutch finals of this competition. For this, they used the simple formula: Grain + fungus = coas…

Some governments and companies are pursuing a more circular economy, but what is the best way to get there? An international group of industrial ecology researchers wrote a report that stresses the importance of including the scientific side into policies and practices. ‘We feel an obligation to support…

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…

In July 2022 our alumnus Samatar Botan received the news that he had received the NWO Mosaic 2.0 grant. This grant enables him to start a PhD research at our Faculty on the ancient Aksumite Empire, a topic that is close to his heart. We speak with him about his ambitions and drive. ‘I want to know more…

They make up no less than 73% of the workforce at the Leiden Institute of Chemistry (LIC), yet PhD candidates and postdocs at the institute don’t always find their way to each other. LIC73 aims to change that. The platform organises social and professional activities and amplifies the voices of these…

Do you also love a city where nature can bloom, crawl and flutter freely and exuberantly? And do you fancy a challenge out in the fresh air? If so, grab your mobile and take part in the BioBlitz 'Higher Education is Flourishing' from 22 May.

An Honours Class about the ostensibly unrecognisable worlds of insular Southeast Asia teaches students a fundamental piece of wisdom: "We do not differ much from the people at the other end of the world."

On January 7th Minister van Engelshoven of Education, Culture and Science of The Netherlands announced that the project Island(er)s at the Helm: Co-creating sustainable and inclusive solutions for social adaptation to climate challenges in the (Dutch) Caribbean is one of two projects awarded with funding…

What do the cloth trade and slavery have to do with each other? Quite a lot, as it turns out, as by history student Sjoerd Ramackers demonstrated in his bachelor’s thesis. He reveals that cloth merchant Daniel van Eijs was closely associated with four plantations in Berbice, a former Dutch colony on…

Climate change, biodiversity loss and environmental pollution are urgent problems that call for close collaboration between lawyers and scientists. Dr Hilde Woker and Dr Jason Rudall, both Assistant Professors at Leiden University, are investigating the important interface between law and science.

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.

Sharing his passion for sustainability with students—that’s what Thijs Bosker enjoys most about his work. As an environmental scientist, he conducts ecotoxicological research, but next to this he loves teaching. ‘Everyone can make a difference in their own way.’

Joey Zuijdervelt

There has been a lot of media attention for the report recently completed by the Institute of Environmental Sciences (CML) from Leiden University. However, it has long been known that Dutch surface water contains too many toxic pesticides. ‘We will have to improve our ways of life together with many…

The University of St Andrews and Leiden University, with the support of a network grant from the Royal Society of Edinburgh, will be hosting a workshop series in 2022 about Ocean Governance. Academics, policy makers, and practitioners are invited to contribute via working papers. Deadline abstract:…

Three Humanities lecturers received the Senior Qualification in Education (SKO) this year. University lecturer Bruno Verbeek is one of them. What does he think makes for good education?

Does a communal garden provide cool air and warm neighbourly relations? Does an additional row of trees increase biodiversity? These kinds of questions are key in the COMBINED project, on which Leiden scientists and residents of The Hague, among others, can work for six years with 4 million euros from…

Five researchers from Leiden University have been awarded a Starting Grant by the European Research Council (ERC). This grant of on average 1.5m euros enables researchers who show potential to start their own project, lead a research team and implement their best ideas.

During the course BBO II: Multi-Level Governance, students learn to make the link between theory and society by completing a challenging practical assignment.

Leiden physicists Alexandre Morin and Samadarshi Maity study self-organisation and flocking phenomena. They shed light on flocking, which helps to understand how it is possible that birds in a flock don't collide. With plastic microbeads, they create an experimental setup and they developed a mathematical…

In collaboration with the Biate community of Meghalaya (Noth East India), I am co-creating the first-ever bilingual picture book in the Biate language. The project began with Biate schoolchildren collecting stories about their environment — stories shared by parents, neighbours, and village elders.

Pope Francis has appointed astronomer Ewine van Dishoeck to the Pontifical Academy of Sciences. She joins an illustrious list of Nobel Prize winners, such as Ernest Rutherford, Max Planck, Niels Bohr and Erwin Schrödinger. What is her view on this? An interview with our professor of Molecular astrop…

We know we should do it, and we often want to, but… Why is it so hard to live a healthier life? Professor of Behavioural Interventions in Population Health Marieke Adriaanse explains.

Climate change, social inequality, and the COVID-19 crisis are examples of wicked problems—issues that require collaboration across different disciplines. In partnership with the African Studies Centre, David Ehrhardt and Caroline Archambault (LUC), along with African partners, are researching the best…

From travel stories, travel guides and hotel vignettes to postcards, drawings, menus, brochures, posters and photos. The collections of Leiden University Libraries (UBL) hold many sources that provide insight into the development of tourism in the Dutch East Indies, present-day Indonesia, from 1870…

Moderne oorlogsvoering kent geen grenzen. Dreigingen zijn steeds vaker digitaal. Promovendus Annelies van Vark stelt dat Scandinavië beter voorbereid is op gevaar. Zij pleit voor een sterkere rol van de krijgsmacht, herinvoering van de dienstplicht en paraatheid – óók bij burgers.

It’s Circular Economy Week, from 1 to 6 February. But what is it that makes an economy circular? And just how circular is our university? René Kleijn, lecturer on the honours class Circular Economy: from challenge to opportunity, explains.

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.

Over the last 5-6 years Burkina Faso has become seriously implicated in the rapid and dramatic changes in the geopolitical situation in the Sahel. The country, once reputed for its stability and safety, has come under the spotlight for the number of violent attacks and of internally displaced people.…

After the Second World War almost three million people emigrated from the Netherlands to countries such as Canada and Australia. The government information was anything but objective, Professor by Special Appointment of Dutch Studies/Dutch Literature Ton van Kalmthout concludes in his inaugural lect…

Former President Kgalema Motlanthe of South Africa gave a public lecture on Campus The Hague on 7 July. His story was about the economic transformation of Africa.

The Netherlands is embroiled in a complex nitrogen crisis. Berent Baris wants to use his NitroGenius game to demonstrate the complexity of this crisis.

For the first time, it was shown in living cells how the bacterium E. coli regulates genes that help it survive in a new environment. Biochemist Fatema Zahra Rashid managed to do this using a technique she fine-tuned. Her research into changes in 3-dimensional chromosome structure offers clues for ways…

Starting February 6, the Leiden interdisciplinary research programme Global Transformations and Governance Challenges (GTGC) will host a lunch seminar series on pressing global governance issues. The series will feature researchers from various disciplines. It promises to be a trove of inspiration and…

Neanderthals were able to outwit straight-tusked elephants, the largest land mammals of the past few million years. Leiden professor Wil Roebroeks has published an article about this together with his German colleague Sabine Gaudzinski-Windheuser in the Science Advances journal.

Since April 2023 the current war in Sudan has brought larger death, destruction, and displacement than any other ongoing armed conflict on earth. And yet, international media coverage of the conflict remains limited.

A discount on textbooks is always welcome. But for these students joining a study association has meant much more than that alone.

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.’

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?

Anti-litter activist Dirk Groot photographed, tagged, and collected more than 400,000 pieces of litter in the Netherlands. Now, he and his data are included in a study on urban litter by researchers from Leiden University and Andrea Ballatore from Birkbeck, University of London.

She narrowly defied bureaucracy and spent days angling for cod. In the North Sea, marine biologist Inge van der Knaap discovered that noise significantly disturbs fish behaviour. ‘There is now a lot of attention for underwater noise.’

The Surinamese-Dutch language, Parbo Beer and, of course, football. The ‘Dear Aunt Olga’ (‘Lieve tante Olga’) exhibition focuses on the shared Surinamese-Dutch culture. Full of cheer and with life experience to spare, ‘icon’ Aunt Olga (95) leads visitors through a shared history and does not shy away…