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.

Leiden University is switching to a new system for HR, finance and purchasing on 1 January 2026, after 27 years of using SAP. We spoke to Wouter Peters, Director of ASSC and Programme Director of BAS, about what this means for the university and you as a member of staff.

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…

How you think about yourself is important for the choices you make. Adolescents are faced with choosing a study programme that will determine their future, while their self-image is still under development. Tough choice? Research by psychologist Laura van der Aar has shown that taking a training course…

Leiden University publishes the highest percentage of preprints in the Netherlands. Why is that and why post your article online before it has been peer reviewed? Professor of Quantitative Science Studies and keen preprint poster Ludo Waltman explains.

Alumni and researchers met at two well-attended alumni dinners in Yogyakarta and Jakarta. The alumni reminisced about their time in Leiden and got to see their lecturers once again.

The university's CO2 footprint - a visual representation of Leiden University's environmental impact - is calculated every year. The CO2 footprint for 2020 shows a striking break in the trend in terms of energy use, mobility and waste.

Walter Gam Nkwi is lecturer at the Institute for History, University of Leiden since 1 September 2019. He also lectures at the Den Haag campus. Walter introduces himself below.

From a meaningless block of plastic to an advanced component that contributes to the energy transition. The technicians and scientists of our faculty think it out in detail and make it a reality. This special project shows that they need each other.

Do you have an innovative idea on how to improve education, but don't know what steps to take next? The Comenius programme offers a range of grants for educational innovation. A lecturer and policy adviser explain which doors the grant can open.

The Faculty of Archaeology is working on a culture change, with the aim of creating a socially safe working environment. Agency Breinkorf was asked to supervise this transition. From Breinkorf, coaches Kasper and Daniëlle, among others, are involved in the process. Their observations provide insight…

White girls receive significantly more positive comments from their teachers in their primary school reports than white boys and children from migrant backgrounds. PhD candidate Antoinette Kroes researched subtle biases in different contexts and saw how harmful these can be.

Courts that adjudicate war crimes or other crimes against humanity are increasingly taking regional norms and cultural values into consideration. PhD candidate Seun Bakare examined whether this could also be an asset in cooperation with the International Criminal Court (ICC).

What do people like Martin Luther King Jr. and Barack Obama have in common? They have mastered the art of public speaking. There are plenty of books on learning this skill, but one aspect of rhetoric remains underexposed in science: how do you make sure the audience remembers your message? Martijn Wackers…

Not experiments and lab coats, but computers and artificial intelligence: this year's Nobel Prize in Chemistry went to the inventors of the groundbreaking AI model, AlphaFold. This programme accurately predicts protein structures based on their genetic code—a crucial step in understanding biological…

Second-year Law student Rosemarijn Sterk achieved the highest average mark for her foundation year (2024–2025). Her average mark of 9.2 was the highest of all first-year students at our faculty. As a result, Rosemarijn was awarded a cash prize of €150 from the Legatum Böckelmanianum fund.

Juan Masullo (Leiden University Institute of Political Science) receives a grant from the Elise Mathilde Fund/Leiden University Fund to conduct his research project ‘Forging an Anti-Mafia Culture: Observational and Experimental Evidence from Italy’. Masullo aims to find out what ordinary Italians think…

Starting your PhD during two major crisis in your country; it happened to Kamaran Palani, PhD student at the Dual PhD Centre and ISGA who lives in Erbil, the capital of the Kurdistan Region of Iraq. In spite of the difficulties in his county, Palani (34) stuck to his PhD-research about the fluidity…

For many a first-year, student life has well and truly begun. This also applies to students in The Hague, who were thrown in at the deep end during the HOP introduction week. We paid them a visit on a sunny afternoon at Landgoed Clingendael.

Designing innovative algorithms, thinking outside the box, and brainstorming over coffee with his colleagues — this is what physicist Stefano Polla enjoys most. His success shines through in his nomination for the C.J. Kok Jury Award 2024 for PhD thesis of the Year.

Psychedelic drugs like magic mushrooms and LSD are embraced by some and seen as lethal by others. Cognitive psychologist Michiel van Elk delved into the world of psychedelic drugs and wrote a surprisingly sober book about them. ‘Without first-hand experience my story wouldn’t be complete.’

Organisation

The university makes staff aware of the importance of cybersecurity at work. And that is essential, say our privacy and security officers. Because the number of cyberattacks is increasing, hackers are getting smarter all the time and by far the majority of problems are caused by human error. ‘Is that…

Psychologists Anna van ‘t Veer and Eiko Fried will start a scientific integrity workshop tour after the summer, called Responsible Scholarship: Psychology. Their aim: giving the subject a more prominent position in the academic’s mind.

A tenacious postdoc researcher persuaded Professor Marc Koper to research the oxygen reduction reaction. In Koper's eyes, there was little of interest there. But they promptly discovered a whole new way to improve fuel cells on hydrogen and oxygen. Their article appeared in Nature Catalysis on 07 Ju…

Giving all scientists at the Faculty the same opportunities, that’s what assistant professor Emily Strange stands for. As women face different challenges as scientists, RISE (Researchers in Science for Equality) provides a network and support group for women at the Faculty. Two months ago, Strange…

Jeroen Touwen has been reappointed as Vice-Dean of the Faculty of Humanities from 1 January. ‘The Faculty Board’s role is to serve the organisation: we try to manage the University as effectively as possible with the available resources, so that research and education can flourish.’

Americans are electing a new president in November but they also have other choices to make in the polling booth. Alumnus Sanne Rijkhoff works at a Texas university and is trying to help make students more aware of the elections.

With ongoing protests across Iran, many are asking whether the regime is on the brink of collapse. Three Leiden experts share their perspectives.

Canal Watch (De Grachtwacht), which has been cleaning canals since 2018, has received the Dutch Research Council (NWO) Communication Initiative Award.

Jorik ter Veer studied Political Science in Leiden. How does he look back on his student days?

Bankruptcy fraud is not being combatted effectively. When the trustee finds irregularities, the fraudster is not always punished. Politicians and the court case involving fashion chain Miss Etam’s ‘rescuer’ have rekindled the debate on bankruptcy fraud.

A pill can make you better, but how exactly does it work? Primary school children from The Hague found out during a visit to the Centre for Human Drug Research (CHDR) as part of a new teaching module ‘The journey of a pill’.

A growing number of AI tools are being developed for the legal sector, to help professionals search lengthy texts or check court rulings. Leiden SAILS researcher Masha Medvedeva, an expert on the technical development of these systems, warns: ‘Users should know what’s under the hood.’

‘I’m setting Academia in Motion by promoting and developing Open Educational Resources (OERs) to enable affordable learning for anyone, and to keep learning and education in the hands of universities and schools,’ says physician, anatomy teacher and e-learning developer Paul Gobée.

Starting as an MP during the Covid-19 pandemic and after the recent ‘role elsewhere’ debacle during the coalition talks for a new Dutch government, alumna Mariëlle is looking forward to making a real contribution in society.

A smart city is of no use if its residents don’t trust it. Tanaquil Arduin, Chief Data Officer at the Municipality of The Hague, and Bram Klievink, Professor of Digitalisation and Public Policy at Leiden University, explain how this can be avoided – to some extent. ‘Make sure civil servants and residents…

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.

Willem van der Muur worked at the Van Vollenhoven Institute as a PhD candidate from 2013 to 2019. After completing his doctorate he left for Indonesia to work for the World Bank. There, he is leading a project to register land rights.

Deze week sluiten we het academisch jaar af met verschillende FGGA-studenten, waarin zij hun zomer- en toekomstplannen vertellen, maar ook terugblikken op het afgelopen jaar: ‘Ik vond het ontzettend prettig om weer terug te komen naar de fijne sfeer op Wijnhaven.’

In 2025, our colleagues from the Institute of Psychology once again made a strong presence in the media. From (inter)national newspapers to podcasts, discover where they shared their expertise in the media this year.

Astronomers have captured a new deep field of Pandora's Cluster (Abell 2744) with the James Webb Space Telescope. The images show never-before-seen details. The results are described in four scientific papers. Leiden astronomers Marijn Franx and Mariska Kriek collaborated on the study. 'This opens a…

Strengthening the connection between social science and society: that is the mission for the coming year of new LDE trainee Eva Slings. With a Master’s degree in Media and Journalism and experience at TU Delft and Airbus, she is the ideal person for the job. 'Together with researchers, I will experiment…

Apps to help people stop smoking, eat more healthily or exercise more are everywhere. eHealth programmes are abundant, yet they are often not accessible to people with lower incomes and levels of education. For her PhD research, Isra Al-Dhahir investigated how this could be improved.

Recognising our colleagues’ teaching efforts – and as a manager, taking steps to do so. Broadening our understanding of quality. Marieke Adriaanse, Professor of Behavioural Interventions in Population Health Management and Recognition & Rewards ambassador, can see that Academia is in Motion, but she…

Physicists in Leiden have built a microscope that can measure no fewer than four key properties of a material in a single scan, all with nanoscale precision. The instrument can even examine complete quantum chips, accelerating research and innovation in the field of quantum materials.

Psychologist Myrthe Jansen conducted research into the performance monitoring that constantly takes place in our heads. People with obsessive-compulsive symptoms are more afraid to make a mistake that harms others, than when they make a mistake that only harms themselves. Jansen received her PhD on…

More than half of our staff took our Employee Experience Survey last spring. We shared the initial findings at the start of July, and since then we’ve taken a closer look at the results and how best to act on them. For Vice-President of the Executive Board Timo Kos, the next steps are clear.

PhD candidate Fien Demuynck researched how wind farms affect fish and how to minimise any negative impact.

They are talented, independent and fit right into your team: LDE trainees. Every year, their knowledge and skills strengthen various university departments. We’re looking for new assignments for the upcoming academic year. So why not submit one, say current assignment provider Monique and trainee Ea…