Elephant toothpaste, a trip among the stars or a lecture on mathematical juggling: on Sunday 8 October 2023, the Faculty of Science opened its doors for the third edition of the Leiden Science Family Day. A programme jam-packed with workshops, demonstrations, lectures and peeks behind the scenes for…

After decades of intensive farming, the peatland area is under pressure. Researchers, farmers and policymakers work together in the Polderlab to identify future-proof types of agriculture. ‘It’s unbelievable how quickly the system bounces back without intensive fertilisation.’

One and a half hectares of polder, a large volume of water, and a group of curious researchers from various universities and scientific backgrounds led by ecologist Maarten Schrama. These are the ingredients needed to answer the question: how do water retention areas affect nature, animals, and our…

On 22 May, astronaut André Kuipers opened the new Mediterranean garden in the Hortus. With this water-efficient garden, the Hortus aims to offer inspiration for future- and climate-proof garden planting. Prefect Paul Keßler and scientific director of the Leiden Observatory Ignas Snellen also signed…

On Thursday 9 September, the mayor of Leiden officially launched a unique ten-year research project in the polder near Oud Ade. During a festive opening in the countryside, he and all the parties involved ceremoniously planted the first trees. Because one thing is certain: the traditional grass landscape…

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…

Should we be growing rice and building materials instead of grass for cows? From invasive crayfish to cultural heritage and groundwater levels: ten graduating students explored the future of the Groene Hart, the rural region just outside the cities of Delft, Rotterdam and Leiden where they study.

How can chimpanzees, so closely related to humans, have almost no sense of rhythm? ‘The best students ever’ and behavioural biologist Michelle Spierings demonstrated that chimps can actually drum and move rhythmically—each following their own unique beat.

Many of our staff and students have won prizes over the past year. Others have been awarded a subsidy, or, because of their eminence in their field, they have been appointed member of an academic society or have taken on a position in the community. Reasons enough to be proud of them and to include…

Leiden University is becoming increasingly aware of the importance of diversity and inclusiveness, but there is still plenty of room for improvement. This is the key message from the first annual report of the Sounding Board on Diversity Policy, presented to Vice-Rector Hester Bijl on 15 February.

NWO has awarded a VIDI grant to Alex Geurds for his research proposal entitled Networked practices of contact: Cultural identity at the Late Prehistoric settlement of Aguas Buenas, Nicaragua, AD 500-1522. Geurds will investigate material culture exchange along the frontier of the Mesoamerican and the…

Using mathematics to help children with bone cancer. It sounds a little strange, but for statistician Marta Fiocco, it's just her job. She gets a substantial grant from KiKa for it. With that money, she is going to study the effect of chemotherapy adjustments.

Scientists, and not only those in the social sciences and humanities, think that valorisation is mainly about economic profit. This is what Stefan de Jong writes in his PhD dissertation. His advice: spread knowledge about valorisation; that way it’s facts that determine the valorisation debate, and…

At the Institute’s Council meeting of last December the first Institute’s biannual prize for teaching was awarded. The award is named after Carla Musterd, a former, highly valued, member of staff, who was famous for her unflinching dedication to teaching standards and excellence.

Since May, Assistant professor BioTherapeutics Lu Su works in our faculty. Although she is still young, she already worked in many different fields and co-operated on two publications in big scientific journals. How did she become so successful and what motivates her to keep researching the possibilities…

A study carried out at the Centre for Science and Technology Studies (CWTS) on the wellbeing of PhD candidates at Leiden University has shown that a number of them experience so much stress that they can develop mental health problems. The supervision of PhD candidates is a continuing focus of attention…

Language is omnipresent: when you talk, app or meet in Teams. Understanding how we communicate with one another and what communication does to us is essential. In her inaugural lecture, Nivja de Jong will call to redress the balance between the sciences and the humanities.

How can public organisations create societal added value? This theme was in the spotlight at the second Leiden Leadership Lunch, which was held on Friday 28 September. Students, academics and government professionals joined in the discussion.

Volgens Wim Voermans, hoogleraar staatsrecht, zullen losse erkenningen van landen niet zoveel betekenen. Erkenning is volgens de hoogleraar pas betekenisvol als ook grote spelers als de VS meedoen, zegt hij in NU.nl.

Sharing a joke with a colleague in your work chat might seem harmless, but just how private is it? Gerrit-Jan Zwenne, Professor of Law and the Information Society, spoke to Quote about privacy at work: 'Employers can’t stop all private communication.'

Research conducted by Dutch news programme ‘Nieuwsuur’ into the work carried out by Princess Laurentien of the Netherlands for victims of the childcare benefits scandal raises many questions. Legal experts are puzzled as to how the Cabinet at the time assigned the tasks. Geerten Boogaard, Professor…

Emma de Vries, PhD candidate in the Department of European Law at Leiden University, has written an annotation for EHRC updates on the ECHR judgment in Suprun and Others v. Russia (June 18, 2024, case number 58029/12).

About the event

Professor of Neurocognitive Developmental Psychology Eveline Crone will receive an Ammodo KNAW Award. This was announced by Ammodo, an institute for arts and sciences, and the Netherlands Academy of Arts and Sciences (KNAW) on 25 January.

The battle for a strong power position in the run up to the provincial council elections in the Netherlands is currently being fought fiercely. Prime Minister Mark Rutte has become accustomed to a minority in the Senate in recent years. The four Rutte cabinets were always able to do business with various…

A new analysis of the king cobra genome by Michael Richardson, Christian Henkel (IBL) and collaborators at the IBL and Naturalis, Helsinki and Singapore has been published in

The recent ruling by the Amsterdam Court that Schiphol must reduce the number of flights from 500,000 to 460,000 is now ‘up in the air’ following the collapse of the Dutch government. How and when the reduction in flights is likely to take effect is now totally unclear.

In recent days and weeks, experts have been falling over themselves to point the finger at the main culprit in the Dutch child benefits scandal. Although this debate is fascinating, equally important are the broader lessons to be drawn from the scandal in relation to constitutional and administrative…

John Kroes received a royal honour from Leiden deputy mayor Julius Terpstra on 20 November. He was appointed Knight of the Order of Orange-Nassau for his exceptional services to the university and his extensive voluntary work for organisations in Leiden and The Hague.

Anchrit Wille, Associate Professor at Leiden University's Institute of Public Administration, wrote together with Mark Bovens, Professor of Public Administration at the Utrecht University School of Governance the book“Diploma Democracy”. The Economist wrote a review “This fascinating book shows that…

The 11th annual conference of the Academic Society for Competition Law (ASCOLA) of 2016 took place this year on 30 June- 2 July at Leiden University.

On 3 March 2022, Cambridge University Press published An Introduction to Public International Law, a co-authored textbook led by Cecily Rose.

Government and public bodies in the Netherlands increasingly make use of complex data that has been collected on citizens. But the connections between all this data are nontransparent and the algorithms government services use to process the data are difficult to verify. This is a recipe for persistent…

Emeritus professor of international law, Nico Schrijver, spoke on NPO Radio 1’s program Spraakmakers about the law of warfare and humanitarian law. He characterized the recent Israeli action that took place in Qatar as ‘brazen, because the attack affected not only Qatar and Hamas, but also the United…

During her time as Speaker of the Dutch House of Representatives, Arib was, among other things, accused of creating an 'unsafe working environment'. To prevent disclosure of the case, she is taking legal action to demand access to all documents and their subsequent destruction. In addition, she is demanding…

Mozambican politician and child rights activist Graça Machel speaks October 27 at Leiden University about her work.

Immune system defends our body against pathogens and cancerous cells, but excessive immunity can in turn lead to tissue damages and diseases. For example, scratching the surface of the eye ignites an immune response that aims at preventing infection but can also lead to edema, angiogenesis and eventually…

Government and public bodies in the Netherlands increasingly make use of complex data that has been collected on citizens. But the connections between all this data are nontransparent and the algorithms government services use to process the data are difficult to verify. This is a recipe for persistent…

The Dutch Research School for Theoretical Physics (DRSTP) has received excellent ratings from an independent international committee. The DRSTP is a school for PhD training which has grown out of a collaboration between the theoretical physics departments at six Dutch universities—including Leiden—and…

What would happen if families with little money were to receive an extra amount every month with no conditions attached? Would it help with their worst financial problems? In order to find out, the municipality of Amsterdam will conduct an experiment with 300 families over the next two years. During…

Jessie Pool wrote about this, among other topics, in her article ‘Maatschappelijk verantwoord vereffenen: belangenpluralisme bij de maatschappelijke taakuitoefening van de curator” (Socially responsible settlement: Pluralism of interests in the social performance of the insolvency practitioner’s duties)…

Many head teachers will have to try and fill staffing gaps this summer. Assistant Professor Kim Stroet, who is researching pupil motivation, is worried about the teacher shortage in the Netherlands, but can see a development that may help solve it.

On 22 January, 15 inspirational lecturers – including Annemarie Drahmann and Joris Larik from the Institute of Public Law – received the Senior Teaching Qualification (SKO) from rector magnificus Hester Bijl. This qualification is awarded to lecturers who demonstrate strong teaching and didactic skills…

To mark the official launch of the network, Maartje Janse and Peter Stamatov have organized a roundtable on Global Abolitionisms at the Annual Meeting of the Social Science Historical Association, November 2015 in Baltimore.

Four promising young researchers will be able to conduct two years of research at a university abroad thanks to a Rubicon grant from the Dutch Research Council (NWO). The Leiden laureates are Renske Janssen, Girija Josh, Anne van der Meij and Yana van der Weegen.

Hervorming van de VN-Veiligheidsraad is urgenter dan ooit. De huidige samenstelling van de Raad weerspiegelt al lang niet meer de huidige machtsverhoudingen, schreef emeritus hoogleraar, Niels Blokker, in een opiniestuk in Dagblad Trouw.

Europa streeft naar meer digitale soevereiniteit, maar blijft afhankelijk van Amerikaanse techbedrijven. In Spraakmakers bespreekt Reijer Passchier of Europa het afgelopen jaar sterker of juist kwetsbaarder is geworden op digitaal gebied.

Op papier in acht dagen duidelijkheid over asiel, maar in de praktijk duurt de IND-procedure gemiddeld 67 weken. De IND wil de procedure versnellen, mede door nieuwe Europese regels die in juni in werking treden. Mark Klaassen, universitair docent migratierecht duidt de zaak in een uitzending van Ni…

Recent debates on energy transitions and poverty illustrate the social ecological complexities of sustainability problems. These cannot be tackled by single academic disciplines – nor by academics alone. In this blog, Marja Spierenburg reflects on the need for, and challenges of ‘transdisciplinarity…

Rühlig, Tim Nicholas, ed., China’s foreign policy contradictions lessons from China’s R2P, Hong Kong, and WTO policy. (New York: Oxford University Press, 2022). Pp. xvi +259. €90.81 (Hardcover). €51.12 (E-Book). ISBN-13: 979-8212055383.