Gerrit van Dijk was born on 14th August 1939 in Kampen. He studied Mathematics in Utrecht where he also received his PhD in 1969 on the thesis ‘Spherical functions on the p-adic group PGL(2)’. His supervisor was prof. dr. T.A. Springer. The academic year 1969-1970 he spent in Princeton, at the Institute…

Help us spot and clean up the plastic in the canals of Leiden! Leiden University is calling on the good folk of Leiden to help our researchers study the plastic in the city’s canals. And if you’d like our canals to be plastic-free, why not donate towards a fleet of canoes to clean them up?

Astronomers from the Leiden Observatory and from the University of Rochester (in the US) have discovered that the planetary ring system that covered the very young sun-like star J1407 is actually of enormous proportions. In fact, it’s much larger and heavier than the ring system surrounding Saturn.…

Bringing together institutes and research groups, how do you do that? The Faculty of Science set up a joint research theme and financed three PhD positions. After four years, the profiling programme Endocannabinoids expires. ‘It really brought us together, and the collaborations remain.’

When we are around four years old we suddenly start to understand that other people think and that their view of the world is often different from our own. Researchers in Leiden and Leipzig have explored how that works. Publication in Nature Communications on 21 March.

Those pesky raindrops that get you wet on your way to work, are formed high up in the sky from clouds of water vapour. The process of nucleation describes the way this happens. Edgar Blokhuis of the Leiden Institute of Chemistry developed a theory to describe this transition more precisely. Chemists…

The world is full of wars, and no war is without its dead. What happens to the bodies of fatal casualties of armed conflict? The winner of the faculty Jongbloed Thesis Prize 2015 is Welmoet Wels (Public International Law). Her thesis Dead body management in armed conflict: paradoxes in trying to do…

Previous OSCL events and member initiatives include:

Crucial information about research, funding or how university rankings are created is often not freely accessible. The Barcelona Declaration on Open Research Information calls for such information to be made open. Professor Ludo Waltman is one of its initiators. What needs to change?

Your local city park may be improving your health, according to a new paper led by Leiden environmental scientist Roy Remme. In Proceedings of the National Academy of Sciences Remme and his colleagues describe how access to nature increases people’s physical activity—and therefore overall health—in…

Pharmacologist Liesbeth de Lange has won the Lewis B. Sheiner Lecturer Award from the International Society of Pharmacometrics (ISoP). As Professor of Predictive Pharmacology she is working, among other things, on a mathematical model that can predict drug concentrations in the brain. On the occasion…

The Leiden Institute of Chemistry (LIC) is to be joined by a further two talented young chemists. Bela Bode and Michele Pavanello have each won a Marie Curie subsidy. Bode will be studying electron transport in photosynthesis and Pavanello will be using computer models to study charge transport in large…

It's the middle of summer and the lecture halls are full. Students from all parts of the world have come to Leiden and The Hague for a summer school, on subjects varying from linguistics to international criminal law and from physics to biopharmaceutical sciences. Lecturers and students talk about what…

Leiden University Libraries (UBL) has been able to acquire an extraordinary Chinese manuscript at auction in Hong Kong. It concerns an Imperial Edict (dated 1582) from the Ming dynasty period, at one time part of the former collection of well-known sinologist and author of detective-novels Robert van…

Indonesia still has a long way to go before the country can truly flourish, was the message given by Indonesian Vice President Boediono during his visit to Leiden University on 26 March. He viewed collections in the University Library and the Hortus, and was presented with the William of Orange medal…

‘To be honest, I knew very little about the Netherlands when I arrived in 1998. But studying law in Leiden was a very enriching experience.’ Nathalie van den Berge grew up in a number of different European countries, and now works at a UN office in Tanzania, where she lives with her Dutch husband and…

This project on the role of FoxPs in vocal perception and production learning is part of nine PhD-positions funded by the NWO Gravitation Programme which was granted to the Dutch Research Consortium 'Language in Interaction'

New research has confirmed that the Dutch military used systematic, extreme violence against Indonesians. In his book Soldaat in Indonesië (Soldier in Indonesia), to be released at the end of October, historian Gert Oostindie draws the same conclusions using different sources. He presents new findings…

Biodiversity and healthy ecosystems continue to decline in Europe, which has serious consequences for human welfare. These are findings of a report that was formally approved by delegates from 127 governments during a UN plenary in Medellin, Colombia. Leiden researcher Alexander van Oudenhoven was one…

The new minor 'Cyber Security Governance Essentials' will start in September 2021. Third year bachelor students of The Leiden Institute of Advanced Computer Science (LIACS) and of the BSc Security Studies of the Institute of Security and Global Affairs (ISGA) who would like to deepen their knowledge…

Increasing resistance and a lack of new antibiotics are a serious problem for public health. Against this background, Gilles van Wezel of the Institute of Biology Leiden is looking for new medicines. Together with former PhD student Changsheng Wu and colleagues he discovered the special antibiotic lugdunomycin,…

How did Fustat develop between 640 and 750 to become the capital of Egypt? At the time Egypt was a province of the Islamic empire - the caliphate - that had been started by the prophet Muhammad. Original sources used by Arabist Jelle Bruning give new insights into the city. PhD defence on 2 April.

Why do vulnerable groups fail to make use of benefits that they are entitled to? This is what Max ten Velde researched in his Master’s in Management of the Public Sector thesis, which has been nominated for the Netherlands Court of Audit’s thesis prize.

Thanks to the virtual girl Sweetie created by Terre des Hommes, more than a thousand men who had webcam sex have been identified worldwide. They thought they were chatting with a ten-year-old girl. Whether that is punishable by law depends on the country, Leiden legal experts conclude.

The Edinburgh Medal 2016 had been awarded to both Kevin Govender of the Office of Astronomy for Development (OAD) and the International Astronomical Union (IAU). The award is a recognition for furthering education and technological capacity worldwide through the inspirational science of astronomy. The…

An international team of astronomers has shown in a laboratory at Leiden University (the Netherlands) that methane can form on icy dust particles in space. The possibility had existed for quite some time, but because the conditions in space were difficult to simulate, it was not possible to prove this…

The English taught interdisciplinary minor Violence Studies looks into various facets of interpersonal violence. Is this minor for all Leiden students? These two 'colleagues' are certain of it.

The disappearance and reappearance of species of plants in the Netherlands is a normal phenomenon. In the period from 1981-2000 the number of plants to have disappeared was considerably lower than previously, whereas the number of species rediscovered is much higher. Climate change may be the cause.

Three teams of students from the European Law Master (LLM) and the Advanced LLM in European and International Business Law (EIBL) participated in this year’s edition of the European Law Moot Court (ELMC). All teams worked intensively between September and November to submit written pleadings. Two of…

In our globalised economy, goods and services are frequently produced abroad. Is it the producer or the consumer that should be held responsible for greenhouse gas emissions associated with production? Together with colleagues from Berlin, Hauke Ward of the Institute of Environmental Sciences (CML)…

Paolo Sartori is a Senior Fellow at the Institute of Iranian Studies of the Austrian Academy of Sciences, Vienna. In Leiden he will deliver one guest lecture on Twilight of the Persianate: The Vernacularization of Central Asia (18th - early 20th Centuries) on 12 April and a masterclass on How can we…

During the final session of the PRE-University Class Security Challenges in the 21st Century, students showcased their thorough analysis of contemporary safety and security challenges. The results were impressive, according to both the teachers and the assessors: ‘You almost forget that they’re high…

It was busy at the Bachelor's Open Day of Leiden University. Over 7,000 prospective students had come to take a look at Leiden. What did they expect of their chosen programme? Would they join a student association? Would they move out of home? Feedback from five prospective students.

Rembrandt van Rijn was enrolled as a student of the arts at Leiden University, but he was more interested in becoming a painter. What traces now remain of this famous phantom student?

Anthonya Visser, Professor of German Language and Literature, was a PhD candidate in East Berlin just before the fall of the wall. The 'Wende' became the theme of her research. 'My focus is always strongly on the East German perspective.' On 7 November Visser will give a lecture in the Studium Generale…

On Friday 16 February 2024, Rudolf E. de Jong passed away unexpectedly in Cairo. Since 2012, he was the director of the Netherlands-Flemish Institute in Cairo (NVIC), which he skillfully managed for 12 years. He was laid to rest in Amsterdam on 27 February. Rudolf was 65.

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?

A permanent exhibition on the place of humans in the cosmos. This is something Franx wants to use his Spinoza Prize for. ‘So much progress has been made that we are still trying to define the questions. In finding the answers we are constantly coming up against surprises.’

Philosophy master's student Timon Krause is 24, but it feels as if he’s already fully lived at least two lives. His show MINDGAMES is currently booked in 57 theatres, including Leiden’s Schouwburg on 18 January. ‘Philosophy is what my show’s all about.’

If you replace the standard hydrogen atoms in ice with a heavier variant, something odd happens. The volume occupied by the molecules increases by 0.1 per cent. Leiden chemist Jörg Meyer and his colleagues have created a theoretical model that describes this behaviour. Their research appeared on the…

For many students, a summer school abroad is a fun and useful way to spend the summer. This year, because of the travel restrictions, many summer schools were held online. There was no less interest from students though. What is it like to study in a different country, but digitally? Or to travel abroad…

Electrons in graphene behave like light particles; they have no mass and can penetrate everything: very useful if you dream about nano-electronics. But you do have to channel them. Carlo Beenakker will be researching how. He has been awarded an ERC Advanced Grant of 1.5 million euro to carry out this…

The channel through which two cell components exchange material appears to form at the edge of their contact surface, and not in the middle. This was discovered by the Leiden physical chemists Jelger Risselada and Edgar Blokhuis together with researchers from the University of Lausanne in Switzerland.…

For his PhD, historian and army major Dion Landstra researched the effectiveness of observers in peace operations in the Balkans between 1991 and 1995. What risks are acceptable for bringing about and maintaining peace? Landstra will defend his PhD on 28 September.

On Friday 2 October journalist Sander van Hoorn starts his lecture series ‘The Middle East doesn't exist’, which was organised by the Leiden University Centre for the Study of Islam and Society (LUCIS). ‘If all goes well, people will understand the Middle East that bit less after my lectures.’

Research by Leiden University Medical Center (LUMC), The Hague University of Applied Sciences and Erasmus University Rotterdam shows that about 15 percent of Dutch people do not want to be vaccinated. If better use were made of the knowledge of local professionals such as GPs, it would be easier to…

A vaccine based on sugar coats does have the potential to combat a multi-resistant staphylococcus. That is what Jeroen Codée and his colleagues from Utrecht state in Nature. In doing so, they are contradicting the earlier conclusions of German colleagues.

How do you study complex disasters like a nuclear explosion or a natural disaster? Who can help unravel the legal knot that Brexit has become? The important societal themes of the present day call for interdisciplinary collaboration. Leiden scientists pitched their research at a symposium at Leiden…

What does the UN seek to achieve though global observance days, weeks and years and how have these initiatives impacted the role of the organization in forwarding the agenda of human rights?

The Leiden Leadership Programme is going to innovate. After 12 years, the honours track for master’s students will get a new set-up. We asked two of those involved about the ins and outs of the new LLP. ‘You learn what leadership style suits you and how to make an impact.’