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?

Gold nanoparticles give us a better understanding of enzymes and other molecules. Biswajit Pradhan, PhD candidate at the Leiden Institute of Physics, uses gold nanorods to study individual molecules that would be challenging to detect otherwise. Resulting knowledge can be applied to many research fields,…

Many people were using social media to follow last weekend’s march on Moscow by the Wagner mercenaries. And they weren’t the only ones: intelligence services were also watching with great interest. What kind of information do they obtain from social media and what are the advantages and disadvantage…

When you become very good at one thing, that sometimes comes at the expense of something else. Such trade-offs also apply to bacteria. When becoming more resistant to one antibiotic, bacteria can sometimes become more sensitive to another. Linda Aulin, PhD candidate in the pharmacology group of Coen…

Een subsidie aanvragen voor je onderzoek, dat lijkt veel werk en klinkt saai. Zeker als je hier nog niet zoveel ervaring mee hebt. Gelukkig staat Tjeerd Rijpma, subsidieadviseur bij FGGA, voor je klaar.

‘In Hong Kong, the elderly found our popular nature routes boring, so they now cycle our action-packed routes through New York.’ What once started as an assignment for the Master Programme Media Technology, has grown into the international market leader in the field of virtual reality exercises for…

The EU is aiming to deter economic coercion with a new legal instrument. Freya Baetens will elucidate this in her inaugural lecture on October 27th.

Fradinta Laksmita came to Leiden in 2023 for the Advanced Master Law & Finance during her sabbatical. She has since returned to Jakarta and now works as an associate lawyer at Dentons. ‘My best memory was actually going to class.’

The two instruments of ESA's space telescope Euclid have taken their first test images. The first images indicate that the space telescope will achieve the scientific goals for which it was designed - and possibly much more. Euclid will create a 3D map of a third of the sky, allowing scientists to study…

Being rejected always hurts, but so does having to reject someone. Social psychologists have discovered that at interviews to select suitable housemates students dehumanise candidates to make it easier to reject them. That may sound harsh but, according to the researchers, it is also logical.

Leiden University is the first Dutch university to join the Healthy Universities international network. Lifestyle workshops, rewards for good behaviour and the latest interventions encourage students and staff to live more healthily. The experiences gained through this network will be used in scientific…

Today marks the launch of the LDE Bachelor Honours Programme Sustainability. Students from Leiden University, TU Delft and Erasmus University will work together on concrete sustainability issues of organisations. Interest in the new programme turned out to be overwhelming. Two lecturers involved share…

From underground heat exchangers at the Bio Science Park to drinking taps to replace water coolers. With its new environmental policy plan, Leiden University will become greener in the coming years.

Skills training for students, researchers and entrepreneurs and guidance for start-ups. These are the prime tasks of the Centre for Innovation and Entrepreneurship – HUBspot – a joint initiative of Leiden University, the University of Applied Sciences Leiden and the municipality of Leiden.

Investigation services and cyber criminals both make grateful use of the opportunities offered by digital technologies. Both groups' use of these services leads to breaches of privacy for citizens. The current legislation falls short in providing protective measures, is the conclusion reached by Professor…

Master student Encyclopedie en filosofie van het recht Marlotte Roldaan vertrok in januari 2024 voor vijf maanden naar de Verenigde Staten om daar in San Francisco te gaan studeren. Haar advies voor mensen die twijfelen: ‘Gooi jezelf in het diepe’.

Besides being the author of such a classic work of literature as The Hobbit, Tolkien was also Professor of English Language and Literature in Oxford. How did he incorporate his research in his fiction? An international conference on the subject is being held in Leiden on 18 June.

eLaw - Center for Law and Digital Technologies at Leiden University, hosted the first Horizon Europe BIAS Project co-creational workshop geared towards defining the requirements for identifying and mitigating diversity bias in AI systems used for recruitment purposes.

The challenge is considerable, but so is the satisfaction when it succeeds: creating complex sugar molecules that play a role in biology.

Psychology teacher of the year is Anouk van der Weiden. The master thesis awards are for Irina Verhülsdonk and Christel Klootwijk. Eliška Procházková receives the PhD publication prize; Katja Cardol and Judith Tommel the PhD wild card: the Open Science Award. Conny Binnendijk earns the OBP prize and…

Scientist looked for the genetic footprint of fire use in our genes, but found that our prehistoric cousins - the Neanderthals - and even the great apes seem better at dealing with the toxins in smoke than modern humans.

Master’s student in Company Law Jelle van der Werff left for Melbourne in February 2025 for a six-month exchange. It turned out to be a great opportunity: ‘Getting to know so many different cultures in one place is really special.’

The description of a painting directly affects how children look at that artwork. This was discovered by psychologist Francesco Walker in the Rijksmuseum. Another finding presented in his article in Nature - Scientific Reports is that giving children information intended for adults has the same effect…

How do people become involved in terrorist organisations? Liesbeth van der Heide sought the answer to this question in a Malian prison, where she interviewed terrorists in a tiny cell. She discovered that the will to survive and social context are often more decisive than individual ideological convictions.…

Sharing knowledge based on research within organisations presents a challenging task. How can this be done effectively? What steps should be taken to ensure that knowledge obtained from research is shared and applied in the organisation's daily practice? On 8 May, the Leiden Leadership Centre (LLC)…

Monique Koemans werkt sinds 2,5 jaar op de Nederlandse ambassade in de Verenigde Staten. 'Leiden is een opvallende rode draad in mijn leven.'

It’s better to cut our nitrogen emissions now than to solve the consequences later at great expense. That’s the lesson we can learn from the Dutch nitrogen crisis, according to nitrogen expert Jan Willem Erisman. In Science, he shares this lesson with other countries. According to Erisman, we should…

Als universitair hoofddocent Ethiek en Digitale Technologie is zij verbonden aan het centrum voor Recht en Digitale Technologie (eLaw) waarvan ze ook hoofd onderwijs is. Daarnaast is Francien initiatiefnemer en coördinator van de universiteitsbrede minor AI & Society en neemt ze deel aan de universitaire…

The new Erfgoed Gezocht/Heritage Quest website means you can play armchair detective and hunt for undiscovered burial mounds in the Veluwe. This will help stop them being destroyed by construction projects. The website is the initiative of the Leiden University Faculty of Archaeology in collaboration…

This semester we again organize the elective Nitrogen and Sustainability for 36 master students mainly from Industrial Ecology and Governance of Sustainability. The course helps the students to understand the complexity of the Dutch nitrogen crisis and the role different stakeholders play.

The Member States of the European Union do not intervene when a Member State disrespects the values of the European Union, Judith Sargentini, member of the GroenLinks party at the European Parliament, said at the annual Europa Lecture on 9 May in the Lorentzzaal of the KOG Building.

How can Europe lead the way in vaccine development that is fast and for all? To answer this pressing question, Professor of Vaccinology Meta Roestenberg is holding a panel session on 14 July at the EuroScience Open Forum in Leiden.

Assyriologists in Leiden have been conducting research into ancient clay tablets from the Middle East for 100 years already. What exactly do these clay tablets tell us? And why is Leiden such a good place to study them?

Since the disaster in Japan, professors, staff and students of the department of Japanese Language and Culture at Leiden University have regularly been contacted by the media asking for their opinion about the events taking place there. Ivo Smits and Kasia Cwiertka, Professors of Japanese, give their…

How can parents avoid passing on stress and mental health problems to their children? Professor of Stress-Related Psychopathology Bernet Elzinga develops simple interventions to help both parents and young people. For her research, she has been awarded the Spinoza Prize, the highest academic honour…

Fascinated by science since high school, Alireza Mashaghi Tabari is driven to explore new ways of thinking in medicine. With a strong academic network, he educates students and gives public lectures. For his research at LACDR, he won the C.J. Kok Public Award 2018, making him the Faculty of Science's…

As of January 2022, Ivo van Vulpen has been Professor by Special Appointment of Science Communication at the Leiden Institute of Physics (LION). Van Vulpen will be researching science communication in general and will aim to underline the value and importance of science communication.

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…

People suffer from anxiety wait on average twelve years before seeking professional help. That’s a pity and it’s unnecessary, says development psychologist Leonie Vreeke. She is therefore developing prevention programmes where parents learn to react in a helpful way to anxious behaviour on the part…

De Faculteit Archeologie bestaat dit jaar 25 jaar. Ter ere van dit jubileum opende de faculteit op 1 maart zijn deuren voor het brede publiek.

The Hofstad group is known mainly because of Mohammed B., the murderer of Theo van Gogh. PhD candidate Bart Schuurman examined this Dutch jihadist group based on interviews and confidential police files. How and why did the group come about? What drove some of the group members to commit terrorist…

At the Faculty of Science, forty per cent of the employees are of a non-Dutch nationality. Amongst PhDs that is even sixty per cent. How are they doing in a time of working at home in a different culture, when travelling is not possible? Astronomer Yamila Miguel is the first in this series to tell her…

Several years ago, two amateur archaeologists from Brabant discovered over a hundred Roman coins near to Berlicum in the north of the province. After years of research, it now appears that the location, close to a ford in the river, was a site for offerings. Another interesting fact is that the coins…

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…

At the VIth Monte Albán Round Table conference (July 2011) in Oaxaca, Mexico, Maarten Jansen (Leiden University) together with Mexican archaeologists Dante García and Iván Rivera (both from the Instituto Nacional de Antropología e Historia) discussed the topography and toponyms of the archaeological…

Synthetic fuel is cleaner than natural oil, but its production process needs to be more efficient. Now for the first time, physicists have directly observed the molecules produced in the chemical process. This paves the way for designing more efficient catalysts. Publication on September 19th in Nature…

What does it mean to be Aruban, Bonairian or Curaçaoan? In the Traveling Caribbean Heritage project historian Gert Oostindie studies this question together with PhD candidate Joeri Arion and heritage specialist Valika Smeulders. Other researchers and the islanders themselves are also collaborating…

Floske Spieksma will give her inaugural lecture as Professor of Mathematics of Operations Research on 1 September. A discussion about mathematical models, Venezuela, trembling knees, being the only woman, casinos, intuition and above all loving your job.

De Regenboog primary school in The Hague has a high percentage of children whose first language is not Dutch. In the ‘Children of the City’ project, Education and Child Studies students help primary school children practise their Dutch.

For his PhD project, computer scientist Manolis Fragkiadakis is developing a tool that can compare videos of sign language corpora. This would make it possible to detect differences between sign languages and prevent translation errors. Ultimately, the tool could be used to compare sign languages from…