What happens in the mind of someone with ADHD? GZ psychologist Bianca Boyer discusses this in a two-part episode of the Dutch 'Podcast Psycholoog'. She likes to look beyond the symptoms described in the DSM-5. 'Those are just the tip of the iceberg.'

On 15 April, our much-beloved and highly respected former colleague Dr Hans Brussee passed away from cancer. In January 2025, Hans began experiencing neck pain. Initially, it appeared to be a herniated disc, but sadly, the diagnosis was soon revised, and his condition proved untreatable. Hans was 77…

Leiden University Medical Center (LUMC) has spent the past five years coordinating an international study of genetic mutations and breast cancer risks. The results will make it easier to determine which genes increase the risk of breast cancer and to what extent. The researchers published their results…

On January 1st Jasper Knoester started as our new dean. How is he finding it? What kinds of things is he doing and what does his day look like? In each newsletter Jasper gives a peek into his life as dean.

If you look at the postwar cartoonists of Dutch origin, Bernhard Willem Holtrop is certainly the most interesting, according to Frenk Driessen. He wrote his PhD thesis on Holtrop - who drew for HP/De Tijd and Charlie Hebdo, among others - and then also published it as a book.

Leiden University's eLaw Center's BIAS Project and the Universidad de la Laguna's AEQUITAS project will collaborate to develop a deeper understanding of AI technologies' impact on workers and inform policies accordingly.

The International symposium on artistic research methods organized by ACPA and the Platform for Arts Research in Collaboration (PARC), in coordination with Fontys Tilburg and SAR– took place on 9th April, 2024 at the Textile Museum in Tilburg. The recordings are now online at whatmethodsdo.com.

Over two days in the middle of April the Leiden University Centre for the Arts in Society hosted the virtual Bodies Matter conference. Almost two years in the making, the conference was an exciting and timely opportunity to discuss and debate histories, theories and practices of bodies.

A few law students were given the opportunity to conduct an eight-week internship at the Rechtbank Den Haag. They took part in hearings as clerks, in discussions about cases in the judges’ chambers, and contributed to the formation of decisions. They held a presentation about their experiences during…

Should criminal law have a greater role in protecting this democracy? In his inaugural lecture, Professor Jeroen ten Voorde urges caution.

Nikki Ikani (ISGA) and Bernardo Ribeiro de Almeida (LUC) have received Veni-funding. A total of 188 scientists received grants in this round. Veni grants are awarded annually by NWO.

Lawyer and human rights activist Lilian Gonçalves-Ho Kang You is the new Cleveringa professor.

Inspectors at the Dutch Tax and Customs Administration can require people to provide more information relating to their tax returns. Esther Huiskers-Stoop from the Tax Law department investigated the rules in place to protect us when we are required to provide information to the tax authorities.

The free AI and Ethics course (in Dutch) is available online to anyone who wants to find out more about the ethical implications of artificial intelligence. One of the eight experts featured in the course is Professor Reijer Passchier. ‘Artificial Intelligence is spreading so fast and has such an impact…

From January 2026, Leiden University will have an additional location in The Hague: Spui Campus. As well as teaching, study and sport facilities, it will offer 90 workspaces and meeting rooms for Leiden University staff.

With the final weeks of the year in full swing, many students are experiencing stress. This is where a chat with the student psychologist can bring some relief. Martine Efting Dijkstra explains what she and her colleagues can do.

The Sustainability Monitor 2024 reveals that Leiden University has again taken significant steps to become a more sustainable and future-proof university. Since 1990, its carbon emissions have decreased by 50 per cent and, compared with 2019, its natural gas consumption has dropped by 32 per cent. Its…

Quantum technologies are in demand worldwide, but until now Leiden students could not specialise in them. The new master’s program QIST (Quantum Information Science and Technology) is going to change that. Researcher and professor Jordi Tura i Brugués: ‘We need to train the next generation of quantum…

On 26 November 1940 Professor Cleveringa held his courageous speech protesting against the dismissal of his Jewish colleague, Professor Meijers. Cleveringa was arrested and the university was closed. Every year the university honours Cleveringa with a chair and meetings throughout the world.

The energy transition is already a huge challenge for society, but sustainable use of resources is even more complicated. Yet it is at least as urgent. Ester van der Voet has been working on it for decades, for example within the United Nations. Since February, she is a professor at the Centre for Environmental…

17 November is International Student’s Day, dedicated to showcasing the international experience of international students in the Netherlands.

Corona travel restrictions and increased political pressure: research into China has become considerably more difficult in recent years. University lecturer and China researcher Rogier Creemers does not let this put him off. He receives an NWO grant to screen policy documents using digital technique…

Eduard Fosch-Villaronga from eLaw - Center for Law and Digital Technologies, and Hadassah Drukarch, explored the role of intersectionality within (rehabilitation) robot design, testbed, and standards. Being oblivious to these considerations may give way to the development of robots that fall short of…

Polypeptide Therapeutic Solutions (PTS), a leader in the design, development and custom manufacturing of polyamino-acid based delivery systems for therapeutic drugs and the Leiden Academic Centre for Drug Research (LACDR) today announced a research collaboration to develop advanced drug delivery systems…

With the conference circuit slowly reopening after Covid forced almost all academic interactions online, thousands of conference attendees descended on Brussels for Europe’s largest technology conference. eLaw’s annual sponsorship of one of the many CPDP conference panels brought a diverse range of…

In healthcare, gender and sex considerations are crucial because they affect individuals' health and disease differences. Yet, most algorithms deployed in the healthcare context lack close consideration of these aspects and do not account for bias detection. In their latest paper, Eduard Fosch-Villaronga,…

The effects of sustainability projects on poorer, marginalised people should be considered at a much earlier stage. This is the opinion of Marja Spierenburg, Professor of Anthropology of Sustainable Development and Livelihood, who will give her inaugural lecture on 25 February.

Early treatment benefits patients who have not fully developed rheumatoid arthritis but are in the preliminary stages of the disease. This is what researchers from the Leiden University Medical Centre (LUMC) have reported in The Lancet. Patients in the pre-arthritis stage who were temporarily prescribed…

By 2050, we can obtain 40 per cent of our demand for scarce earth metals from old smartphones, batteries, and wind turbines. This is crucial because otherwise, we may not have enough to accomplish the energy transition. An international team of researchers from China, the UK, and Leiden's Tomer Fishman…

Russian literature is awash with disputes, riots and intense political debates. In the new Dutch podcast Schandaal en Controverse in de Russische literatuur, senior lecturer Otto Boele and film maker and journalist Kay Mastenbroek discuss the most talked-about Russian books published in the past two…

In 2018 the Laboratory Efficiency Assessment Framework (LEAF) was launched in the UK. The aim of this programme was to help laboratories work more sustainably and efficiently. The initiative got a Dutch spin-off in 2021. Since then, a couple of the laboratories at the Leiden Faculty of Science have…

The celebration of our up-and-coming science talent, that is the Psychology Science Day. Students stand proudly by their research posters and enrich the insights of fellow students, PhD candidates, postdocs and faculty with their explanations.

They never cross our minds until, that is, they become damaged and then they’re a huge problem: our sewers. Their maintenance could be much faster and more accurate, PhD candidate Dirk Meijer has discovered. Algorithms are also proving to be a godsend deep underground.

Throughout the year, master's student Berber Kommerij is busy analysing medieval and early modern books and paintings. Every summer, however, she leaves for the Norwegian fjords to conduct sea kayaking tours. 'Watersports are my great love.'

Hundreds of beautiful and timeless photos by Emmy Andriesse, one of the most important Dutch photographers of the twentieth century, are now freely accessible for everyone and can be used for research, education or other purposes. Large parts of Andriesse's oeuvre are already available online via Digital…

Many members of Chicago's P'urhepecha community did not even know they lived a stone’s throw from some of their own historical heritage. Researcher Kate Bellamy organised a meeting to introduce them to books hundreds of years old.

Vedran Dunjko appointed to full professor of quantum computing at Leiden University, the Netherlands.

Hoe kan het dat universele mensenrechten wereldwijd niet hetzelfde in de praktijk worden gebracht?

The extension of the Dutch government’s Covid-19 relief measures for businesses has ensured that in the last six months of 2020 the number of bankruptcies was at an all-time low. However, according to the Bijzonder Beheer Barometer (special risk management barometer) an initiative of PwC and the Department…

Educators in European science museums sometimes think rather differently about the definition of an 'authentic' object. They think carefully about how they present those objects to teach visitors something or make them curious. This was shown in research by the Science Communication & Society department.…

Positive expectations about treatment increase the likelihood of success. The new Center for Interdisciplinary Placebo Studies Leiden is therefore promoting research on the placebo effect and offering expertise and training for care providers. At the opening, the founders demonstrated their VR communications…

What do you do with a museum collection full of individual white Nobel laureates at a time when diversity, inclusion and teamwork reign supreme? Ad Maas, professor by special appointment, and researcher Hilbrand Wouters have been awarded an NWO Museum grant to answer that question.

On August 18, 2022, Henk Bodewitz, distinguished Indologist and emeritus professor of Sanskrit at Leiden University, passed away in his hometown of Utrecht.

Within the same species of butterfly many different wing patterns can occur. How is this possible? According to researchers Ben Wielstra and Emma Berdan, of the Institute of Biology Leiden (IBL), the answer lies within supergenes. A supergene is a part of a chromosome that contains many strongly linked…

Cryogenic memories, antibiotic treatment for urinary tract infections and recycling plastic sustainably. These are the subjects of the three NWO-XS grants awarded to Leiden Science researchers.

Are you thinking of applying for a Kiem grant but still tinkering with your idea for an interdisciplinary project? Let your Leiden colleagues inspire you! Dario Fazzi successfully applied for a Kiem grant with his workshop ‘Understanding the threat of the Anthropocene’.

When a challenge or question presents itself, our first reaction is often: ‘Let’s organise training’. But is that always the best solution? The working day often offers plenty of informal learning and development opportunities

Union membership is important, especially in turbulent times. Unions negotiate on your behalf with your employer about your terms and conditions of employment. And if that’s not reason enough, you’ll get a membership discount until the end of October. So join now, says senior policy adviser and FNV…

Developing new drugs is a difficult process. With the aid of artificial intelligence, Pharmaceutical scientist Xuhan Liu has developed methods that can help make drug design cheaper and faster. PhD defence on 15 February.

As of 1 September, archaeologist Amanda Henry has been appointed Full Professor at the Faculty of Archaeology, where she will hold the chair in Evolution in Hominin Diets. The appointment marks a new chapter in her academic journey, building on her longstanding research into ancient human diets and…