Assistant Professor Christopher Green was interviewed on ABC Australia about the recent COVID-19 outbreak in North Korea. Green says that the statistics the isolated country has given are ‘essentially nonsense’.

He brings order to chaos and analyses satellite swarms. During his PhD research, mathematician Oliver Nagy delved into random networks and how they reach equilibrium. Along the way, he also developed a handy tool. This knowledge is valuable for calculations related to communication networks.

On Tuesday 30 September 2025, PhD candidate Jonathan Collins will defend his dissertation A Wolf in Sheep’s Clothing: A Mixed-Methods Analysis of the Far-Right Alt-Tech Social Media Movement in Leiden’s Academy Building. His work examines the communication dynamics of far-right communities on alternative…

After an intensive tender procedure, Leiden University and the Municipality of Oegstgeest have chosen Dura Vermeer for a new housing development with plenty of affordable homes in Nieuw Rhijngeest-Zuid. Dura Vermeer seeks to create a green and playful neighbourhood with welcoming public spaces as its…

Online dating is hard enough on its own, but these days you also need to know what terms like ‘zombieing’ and ‘prela’ mean. Alumni Milou Andree and Vivien Waszink wrote ‘Swipen voor een kwarrel, a book that discusses all the dating jargon, from the ‘scharrel’ to ‘pigbutchering’.

This month marks the two-hundredth anniversary of the deciphering of Egyptian hieroglyphic writing. NINO, the Language Museum, Things that Talk and the National Museum of Antiquities are seizing the opportunity to organise the first Week of Ancient Writing.

On top of the Gorlaeus Building’s bike parking sits a hidden green surprise: Leiden’s largest rooftop garden. Since this academic year, the garden has been open to all students and staff.

Last Wednesday was the official deadline for students to apply for one of our master’s programmes. Some of our master’s programmes, such as History, organised a last call Q&A for students.

Marie Schwed Shenker, PhD candidate at eLaw, has successfully completed an intensive summer school on Social Robotics at Utrecht University. The program offered a comprehensive mix of theoretical instruction and hands-on experience, providing her with the skills to design and experiment with social…

On September 15th a new series of lectures will start, the Joint Lectures on Evolutionary Algorithms (JoLEA). This series of events is aimed at disseminating the latest, top-quality research on EAs. The lectures will feature world-renowned speakers, local researchers, and PhD students.

In this series the Vice-Dean and portfolio holder of education in the board of the Faculty of Archaeology will reflect on the state of education. Posts can range from shedding light on current national shifts in the university landscape to arguments as to why it’s important to be timely with designing…

Professor Felix Ameka and university lecturer Maria del Carmen Parafita Couta have received an NWO Open Competition grant together with Enoch Aboh (University of Amsterdam) to do research on ‘code-switching’: switching languages by multilinguals.

The issue of how to deal with a development such as digitalisation in the public domain raises difficult questions for the municipality: who is responsible and when do you intervene?

Universiteiten moeten niet verbaasd zijn dat studenten ChatGPT gebruiken, schrijven de Leidse universitair docenten Femke Klaver en Alexander de Wit in Trouw. Want studenten reageren op efficiëntie en doelmatigheid. Hun suggestie: Leid studenten op om kritisch na te denken.

Landen om ons heen laten zien: als burgers mogen meedenken, komt er beweging in vastgelopen politieke discussies. Zou een dergelijke derde kamer ook de oplossing kunnen zijn voor Nederland, waar samenleving en overheid elkaar steeds verder uit het oog lijken te verliezen?

Education, Research

Organisation, Social

Social

While tens of thousands of visitors dance to deafening music, a team of Leiden psychologists are trying to collect data for their research at Lowlands. How do festivalgoers experience a virtual trip? And what role do factors such as too little sleep and whether they have experience with psychedelics…

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…

‘To be honest, I don’t really care about what type of research is going on. Just let me do my own thing and everything is fine,’ according to biotechnical officer Davy de Witt. In this interview, he tells about his tasks and experiences at the Institute of Biology Leiden, where he has been employed…

Connecting scientific fields, enhancing research and teaching, and providing innovative solutions to complex social issues: that is the idea behind interdisciplinary research. What did the university achieve in 2024? A small sample.

Each scientific institute has its own dynamics. The Executive Board is visiting the different institutes to find out what is going on there. On 11 March, staff at the Institute of Tax Law and Economics talked to the Board about their teaching and research. What is going well and what are the challen…

From Persia and Arabia to North Africa: as early as the nineteenth century, there were Dutch people who used the camera themselves in various regions of the Middle East.

Last week, third-year students of the Bachelor Security Studies concluded a seven-week intensive programme with a two-day conference. They presented their findings in front of a full lecture hall and in the presence of the client for whom they worked on a complex security issue. Tutor Saskia Postema:…

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…

More severe droughts that will also last longer: this will primarily be a problem for irrigated croplands, as discovered by environmental scientist Qi Chen. Mixed forests with a variety of plant species will be the least vulnerable. Chen compared the effects of drought on different ecosystems across…

In June 2024 the Faculty of Archaeology welcomed a new Assistant Professor. Dr Alejandra Roche Recinos, originally from Guatemala, will strengthen the Faculty’s expertise on the archaeology of Central America. ‘I want to explore the lesser known archaeology of Southern Guatemala.’

Dr Valentina Azzarà, an honorary research fellow at the Faculty of Archaeology and an expert on prehistoric Oman, was recently invited to feature in a National Geographic documentary that aired last year. The opportunity came after a series of discussions and preparations that saw her engage with the…

Workshops, tours, talks, music, an AI photobooth, interviews, a special poem and the launch of the LUF Children’s Fund. Alumni celebrated their alma mater’s 450th birthday in style on Saturday at the massively oversubscribed Dies Natalis Festival.

Emeritus professor Willem Otterspeer received a royal honour from mayor Henri Lenferink on Tuesday 20 September. The university historian was appointed Knight of the Order of Orange-Nassau.

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Bureaucrats appointed based on merit are not necessarily more professional or autonomous than those who have been, for instance, ‘politically installed’. Furthermore, patronage does not only have negative effects. These are two conclusions reached by Abdul-Nasir Abubakar, PhD candidate at Leiden University’s…

Bram Slütter

Our Keyholders are a close network of over 500 committed donors who actively support Leiden University. Pauline Höhner-Regout, who started working at the LUF since April, talks about her role as a Keyholder fundraiser.

With its Green Deal The European Union has set itself much-needed ambitious climate goals. But the energy crisis and geopolitical tensions are making these difficult to achieve. Seven researchers from the Leiden-Delft-Erasmus Universities (LDE) alliance have written a white paper offering solutions.

This year’s Education Market will be happening very soon. On 19 June, staff members will be on hand at a variety of stands in the Huizinga Building, ready to inspire you with their experiences. Two of the lecturers describe what they will be doing.

Archaeologist Tuna Kalayci investigates roads in a recent edited book. What happens if we think of roads not only as containers of action but also as dynamic and complex phenomena, as the action itself? This question inspired Dr Tuna Kalayci to bring together various studies across a wide range of epochs…

Biotechnological developments are moving fast. From genetically modified plant varieties we are now moving to cultured meat. These developments require moral interpretation - and they get it in the form of art. Lotte Pet wrote a dissertation about it.

When a spot in the core group of the Strategy Team became available, she immediately applied for the position. Because as Head of HR, Elice Schöne feels it is important that her department is well connected to the strategic plan.

The university campus at Leiden Bio Science Park will change rapidly over the next few years. A short film shows the transformation to a full campus. See what this mix of new university buildings, student accommodation and restaurants and cafés will look like. And sustainability and biodiversity won’t…

Leiden University’s Annual Report 2021 has been published. In this report, which consists of a general section and a financial section (the financial statements), the University provides a record of its research, teaching, knowledge transfer, operational management and policies in that year.

De collegereeks over het Nederlandse crisismanagementstelstel gaat vrijdag 26 mei van start. Lector crisisbeheersing bij het NIPV (Nederlands Instituut Publieke Veiligheid) Menno van Duin trapt af en geeft vast een voorproefje over het eerste college.

If you missed the annual LUCDH Winter School Week of Digital Humanities workshops and Pilot Project Symposium (27 – 31 January 2025) this time around, you’ll have a chance to take part next year. Save the dates for the last week of January 2026!

Having served on the Executive Board for over nine years, the last five of which as Rector Magnificus, Hester Bijl will leave Leiden University at the start of next year. In a new step in her career, she will become Rector Magnificus on the Executive Board of Delft University of Technology (TU Delft)…

No less than 33 project received a Leiden Kiem grant in 2023. How did they fare? Olga Bogolyubova shares experiences from her project ‘Interdisciplinary Approaches to the Study of Safety and Danger in the Digital World’.