When do we say violence was used in an incident? The answer may seem obvious at first. But interim results from a study by Jolien van Breen show that Dutch people are labelling events in increasingly broad contexts as violent.

Understanding what our buildings and cities are made of is an important step in making them more sustainable. Industrial ecologist Tomer Fishman (CML) has received an ERC Starting Grant to map the construction materials used in buildings in the Global South. 'Without the data, you can't formulate po…

A team of international researchers led by Tomas Stolker in the Netherlands has imaged a young gas giant exoplanet near a 12-million-year-old star. The planet is orbiting a star at which planet formation has finished, while the same-aged companion star still has a planet-forming disk. The researchers…

A new position has been created at the Faculty of Humanities. On 1 September, Marian Klamer became the first Director of PhD Programmes at the Graduate School. ‘I want to find the balance.’

Researchers at LIACS have found a vulnerability in open-source code that’s been used around the world for over 15 years. They’ve also developed an AI-based tool to fix the problem automatically. ‘You really can’t afford to lean back.’

Cancelled trains, massive queues at Schiphol Airport, nursery closures and long waiting times for health care. These are all the results of labour shortages. Economist Lars van Doorn can see some possible solutions but has some less optimistic news too.

University lecturer Dario Fazzi and postdoctoral researcher Gaetano Di Tommaso set up a virtual collaboration with the United States last year thanks to a VIS grant. And it was a such a success the project will be repeated next year. Fazzi is looking forward to once again offering his students a multicultural…

When Russia invaded Ukraine at the end of February, normal life there came to a halt. To ensure that affected students and researchers can continue their studies and work, professor Ellen Rutten (UvA) and assistant professor Dorine Schellens (Leiden) set up an international mentor network.

How do you get citizens more involved in energy transition projects? This is the central question of the new transdisciplinary research project EmPowerEd. As a consortium partner, Leiden University is focusing on effective and inclusive collaboration between citizens, municipalities and industry.

A splendid milestone after seven years of collaborative research on the sustainable development of the Indonesian economy. Professor of Industrial Ecology Arnold Tukker has been appointed as a guest professor at the Faculty of Economics and Business of Universitas Padjadjaran (UNPAD) in the Indonesian…

The new Dutch government must act quickly to take rapid, far-reaching measures in three specific regions to tackle nitrogen emissions. This will create the space for a long-term strategy to deal with other urgent problems and the knot of obligations that the state will need to untangle. These are the…

Do you know a children's book fanatic? According to the Griffel-jury, 'Rekenen voor je Leven' (Calculating for your life) by Science Communication Professor Ionica Smeets is highly recommended. The book was awarded a silver ‘Griffel’, one of the highest awards for Dutch children’s literature. And that…

At the moment, many staff members are working intensively on the implementation of BAS InSite, our new administrative system. Much is already up and running – salary payments, invoice processing and the new staff hiring procedure – but some elements still need to be finalised and not everything is working…

What do you do as a government if you are at a loss? You ask an expert for help. In the seventeenth-century Republic of the Seven United Netherlands, one expert after another popped up to advise one of the many regional authorities. In her Veni project, researcher Anna-Luna Post sets out to discover…

Leiden University Academy is making lifelong learning even better! The entire range of programmes on offer for professionals has been expanded and united under this name.

Whereas most outgoing professors are offered a congress, Nico Kaptein's former students and PhD students took a bigger approach. They treated him not only to a farewell congress, but also to a two-week tour of Indonesia, filled with lectures, and trips.

Can humans sense where north is, using what is known as magnetoreception? This question had master’s student Björn Keyser (Media Technology) so intrigued that he started crowdfunding to be able to study this together with the California Institute of Technology.

Green spaces boost mental health—especially in busy cities. A new study from Leiden and Stanford University reveals how nature benefits urban well-being and offers low-cost ways to make city life healthier for everyone.

The new open access book The Science of Citizen Science bundles insights into science that is conducted together with citizens, to promote this growing form of science.

The war in Ukraine has lasted almost two weeks now. What does Putin expect to achieve with his invasion and how big is the chance that the West will get involved? We phoned André Gerrits, professor and expert on Russia.

Martin van Hecke and Lennard Kwakernaak (Leiden university and AMOLF) develop a mechanical metamterial that can count to ten in their research.

Literature – and films and social media too – helps us understand ourselves and society. That makes literary studies an eternally modern discipline, especially if you dare to combine it with other disciplines, says Nidesh Lawtoo.

A gold carpet welcomed students, staff and curious locals into Spui Campus on Monday 2 February. The V&D department store has been transformed into a unique open knowledge centre.

Professor of Computer Science Joost Batenburg has received half a million euros from the Dutch Research Council (NWO) to improve the conservation of historical paintings with 3D X-ray imaging.

In a new piece for The Conversation UK, Michiel van Elk examines whether mystical experiences are essential to psychedelic therapy. 'If the field is to mature, it may need to move beyond the assumption that transcendence is the secret ingredient.'

The ISSC's ICT helpdesk receives dozens of questions from staff and students every day. A collaboration between TNO, LUCL and the ISSC aims to determine whether a specially designed chatbot could provide support in this area.

This page provides updates on the protest today at the Academy Building and Hortus botanicus in Leiden.

Marc Koper, Professor of Catalysis and surface chemistry, has been awarded the EuChemS Gold Medal 2026. The prize is awarded every two years and recognises outstanding achievements in the field of chemistry in Europe.

The Belgian elections are over. Now it is up to the formateur to form a cabinet, but that is difficult. Fauke Deceuninck, program leader of Politics and Governance at the Center for Professional Learning, explains to Speechmakers why that is.

Tom Schreuder has been appointed as the new Business Director of Hortus botanicus Leiden. Schreuder succeeds Peter Inklaar, who held the position for four years. Schreuder currently works as a Commercial Manager at Keukenhof and brings a wealth of experience from that role. He will start his new position…

Missiles that travel at approximately six thousand kilometres per hour, up to 5 or 6 times the speed of sound. Has Russia used those against Ukraine and how is that possible? In Leiden University’s Dutch video series ‘De Werkplaats’, Danny Pronk, political scientist, security expert, and researcher…

A report by interest group Tax Justice Network shows that the Netherlands is still one of the most attractive countries for companies when it comes to tax: we hold a dubious fourth position on a list of seventy coutries. In Dutch magazine Vrij Nederland Jan Vleggeert, Professor of Tax Law, explains…

Jeroen Touwen officially joined the Campus The Hague Board on 28 November.

University lecturer Andrew Gawthorpe argues in The Guardian that the Republican's new agenda for a second Trump term is more radical than the first. He says that they seek to take control of federal agencies by replacing civil servants with ‘American First footsoldiers’.

Government leaders have been searching for words to condemn the actions of Belarus which intercepted a passenger aircraft flying from Athens to Vilnius, the capital of Lithuania, having a fighter plane divert it to Minsk.

‘Om de problemen in de jeugdbescherming op te kunnen lossen heb ik de gemeenten nodig’, zei minister Weerwind van Rechtsbescherming onlangs in de Tweede Kamer. Maar volgens hoogleraar jeugdrecht Mariëlle Bruning moet het rijk stoppen met het verwijzen naar andere partijen en zélf nu zorgen dat de boel…

The nine suspects from Hilversum accused of beating Carlo Heuvelman so badly on the night of 14 July last year that he later died will hear their sentences on Friday. The Public Prosecution Service (OM) had demanded that one of the suspects be sentenced to 10 years in prison, and two others eight ye…

The Leiden Legal Technologies Program is runner up for the Gouden Zandloper (Golden Hourglass) for Legal Education & Research, the prize for the most innovative legal programme.

The suspects of the fatal assault on Mallorca will be investigated in the Netherlands. If the Dutch Public Prosecution Service sees sufficient reason to prosecute the suspects, then a Dutch court will consider the case.

Since reintegration officer Bart Reedijk started work in Dordrecht three years ago, ex-convicts in that municipality have reoffended a lot less often. There is much interest in Reedijk's method throughout the Netherlands, but experts have reservations.

Can Russia be prosecuted for war crimes against Ukraine? The International Criminal Court does not have this jurisdiction. To fill this void in jurisdiction, a new commission has been created: an International Centre for the Prosecution of Crimes of Aggression, the ICPA.

Private businesses will probably soon refuse access to non-vaccinated persons in the near future. But this is more difficult when it comes to public amenities. Aart Hendriks, Professor of Health Law at Leiden Law School, contributed to an article in Dutch newspaper NRC saying that he anticipates that…

Alanna O'Malley, Associate Professor at Leiden University Institute for History, talks about the possible expelling of the Russian ambassador Yuriy Filatov and the risks that come with the decision.

Auke-Florian Hiemstra is the Leidsch Dagblad Person of the Year 2022.

In Nieuwsuur ging Michael Klos, docent/onderzoeker bij de Universiteit Leiden, ging bij Nieuwsuur in op ‘de Twitterfiles’.

Due to the great influx of PhD candidates, we had the pleasure to organize a 2nd PhD Introductory Course on Drug research this year. From November 4- 6, we welcomed 30 participants for this 3-days event, which took place at Castle Oud Poelgeest.

Leiden scholars study clay tablets from ancient Mesopotamia. But what exactly does the cuneiform script say?

Ad IJzerman, Emeritus Professor of Pharmacochemistry, was made a Knight of the Order of the Lion of the Netherlands on 26 April. He was presented with the royal honour by Mayor Elbert Roest in the town hall in Bloemendaal.

Annemiek Hogendorp has been appointed as head of the HR department of the Faculty of Humanities with effect from 1 January. ‘I’m very proud to be a member of Leiden University’s education and research community.’

Microsoft’s new software VALL-E only has to hear a voice for three seconds to be able to imitate it almost perfectly. You can choose which emotion the voice should use and what it should say. Valerie Frissen, Professor by special appointment of Digital Technology and Social Change at eLaw, and Director…