An escape room gave staff the chance to test their knowledge about cybersecurity at work. Would they manage to defuse the bomb in time without falling for the phishing emails or causing a data breach?

Grondstoffen werden vroeger over duizenden kilometers afstand vervoerd. Waarvoor werden ze geruild en waarom sloten mensen in West-Azië zich aan bij deze handelsnetwerken?

Fewer CO2 emissions, less airborne viral transmission, and a more sustainable form of food production: seven consortia of researchers and societal partners will put a budget of 32 million euros towards developing technological innovations. Important Leiden research on circular electronics by Prof. Dr.…

On Thursday, May 16, Leiden University Libraries is organizing a workshop on early photography of the Middle East. In the workshop, curator Maartje van den Heuvel shows photos of three adventurous Dutch nineteenth-century travel and photography pioneers. They created beautiful photos and photo albums…

Rector Magnificus Hester Bijl can see dilemmas but above all opportunities in the search to increase the societal value of research in Leiden.

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.

As from April 2023 all students at Leiden University, Delft University of Technology and Erasmus University Rotterdam will start using the eduXchange portal to register for a minor.

On 5 November 2021, Professor Michiel van de Sande of the Department of Orthopedics in the Leiden University Medical Centre (LUMC) delivered his inaugural lecture ‘The Art of Doing and Doing Nothing’. Van de Sande used the opportunity to explore both physical and philosophical aspects of co-decision…

ICT

The opening of the new academic year highlighted students' and lecturers' personal motivators. Incoming students were encouraged to be bold, forge their own paths and grow by trial and error.

How do we create connection? And how can we build student resilience? These were just some of the questions explored by study advisers, teaching staff and student counsellors during the Staff Symposium on Student Well-being.

Didactics, Career development

Curious to find out how you can contribute to a safe working environment? Then keep reading to discover our tips for working securely. They will help you to work more safely in specific situations. This section contains tools and tips to promote safe working habits in specific situations.

Curious to find out how you can contribute to a safe working environment? Then keep reading to discover our tips for working securely. They will help you to work more safely in specific situations. This section contains tools and tips to promote safe working habits in specific situations.

Does medicine make patients feel better or worse? We are getting better at predicting this from people’s DNA profiles, says Professor Jesse Swen. ‘It never fails to fascinate me how one DNA base pair can have such a huge effect on treatment with medication and the outcome.’

Connecting scientific fields, enhancing research and teaching, and providing innovative solutions to complex social issues: that is the idea behind interdisciplinary research. What did the university achieve in 2024? A small sample.

Covid-19 has had a huge impact on teaching at universities over the past two years. Through force of circumstances, lecturers have adapted much faster to a digital future. On 7 June Leiden Teachers Academy’s annual Education Festival (working language is English) will present insights on this ‘new n…

It’s Circular Economy Week, from 1 to 6 February. But what is it that makes an economy circular? And just how circular is our university? René Kleijn, lecturer on the honours class Circular Economy: from challenge to opportunity, explains.

National Meat Free Week (Nationale Week Zonder Vlees, 7–13 March) is an initiative to reduce meat consumption. Assistant professor Paul Behrens is studying what impact a change in our food consumption would have on the world. What, according to him, are the main reasons to switch to a (mainly) plant-based…

As of 1 November 2025, Professor Luc Sels will assume the role of President of Leiden University’s Executive Board.

Raised by his grandmother and grandfather, trained as a doctor, the medical director of a camp for Eritrean refugees: Ephrem Tesfay was anything but a typical student when he arrived in Leiden in 2019. Still, he fit in well with the ‘youngsters’.

Turning down the heating is good for the climate and the energy bills. But there are also a lot more ways of saving energy. In October, the University put out a call to staff and students, asking them for their golden energy-saving tips. The best entries have now been rewarded with a warm snuggle hoodie…

The Dutch research funding landscape is changing. What developments can senior grant adviser Walter van Raaij see? And what are his tips for a successful grant application?

Education never stops because society is always changing. It is up to students and lecturers to align learning and teaching with current demands. During the Leiden Teachers’ Academy Education Festival, participants united in their search for ways to achieve that.

Prof. Marcel Reinders is a data science specialist at Delft University of technology. Using smart algorithms, he searches for links in complex data. For example, he studies patterns in DNA that lead to aberrant cell behaviour. This knowledge will help detect serious diseases such as Alzheimer's and…

Leiden University is celebrating its 450th anniversary in 2025 with a feast for the eyes, ears and spirit. The anniversary year opens with an extra special Dies Natalis on 7 February. Highlights includes an alumni festival, three exhibitions and a canal concert.

Delft, Nov. 15th, 2022 – Today, eight professors were simultaneously inaugurated as ‘Medical Delta professors’ at Leiden University, LUMC, TU Delft, Erasmus University and/or Erasmus MC. With an appointment of two or more of these five academic institutions, they combine technology and healthcare in…

Would you like to share your academic research with a diverse international audience? On the not-for-profit news platform The Conversation, academics and journalists team up to write research-based articles. Leiden University recently partnered with this platform, and two of our colleagues share their…

Glorious sunshine, dozens of enthusiastic academics and huge numbers of Leiden residents ensured that this year’s special jubilee version of 3 October University was a great success.

The Dutch Research Council (NWO) is investing 197 million euros in 11 infrastructure projects that will be of great value to science and society. Leiden University and the Leiden University Medical Center (LUMC) are participating in eight of the eleven proposals.

Whether finding signals of dark matter or discovering hydrogen in the vicinity of exoplanets, Leiden astronomers are world players in their field, and they are part of a long tradition: Leiden was the first university in the world to have its own observatory.

As technology transforms healthcare and services come under mounting pressure, one question remains the same: Will the advice or treatment offered help patients lead the lives they want to live? In her inaugural lecture, Professor Maxime Kummeling stresses the importance of quality.

At the start of the new year, we celebrate the release of a new selection of collection items into the Public Domain. This year, Leiden University Libraries (UBL) is making approximately eight hundred items freely downloadable via Digital Collections.

Leiden University publishes the highest percentage of preprints in the Netherlands. Why is that and why post your article online before it has been peer reviewed? Professor of Quantitative Science Studies and keen preprint poster Ludo Waltman explains.

The radio telescope LOFAR, with a major contribution from Leiden Observatory, has produced the most detailed radio map of the Universe ever made. Never before have so many cosmic radio sources been captured in a single survey: 13.7 million.

Hiring academics is more than just tallying up publications, says academic director and history professor Jeroen Duindam. He and his colleagues have come up with tips and guidelines for interview committees that align with the new system of recognition and rewards.

The Leiden Ranking – Open Edition is completely transparent. The ranking compiled by the CWTS uses open data and publishes the algorithms that are used.

The new Humanities Hub in the Huizinga Building was officially opened on Tuesday 3 December. In the different labs, researchers presented the options for using digital technologies in humanities research.

With its ‘Quality Agreements’, Leiden University is working to improve the quality of its teaching. Much has been done since they began at the end of 2018. At a meeting for delegates from all the faculties and the University Council on 11 June, it became clear just how much has already been achieved…

We’ve been using BAS InSite, the university’s new basic administration system, for a month now. The transition to a single integrated platform for all HR, financial and administrative tasks went smoothly, for the most part, but also created a few challenges. ‘It’s not just a technical change; it also…

Bring over a hundred driven researchers together in one room and the good ideas will start to flow: that was the thinking behind the internal networking meeting on interdisciplinary collaboration on Wednesday 17 May. Representatives from the nine interdisciplinary programmes were waiting at their stalls…

How has evolution shaped our curiosity? And how does that curiosity ensure that we now have the technological ability to discover whether we are alone in the universe? This was all covered during the celebration of Leiden University’s 449th Dies Natalis.

A cancer pill, preferably without severe side effects, is something we’d all welcome. Is it a matter of time before such a pill is a reality? We put this question to three Leiden researchers and asked how they themselves are contributing to new cancer treatments.

The Dutch Research Council (NWO) has awarded Vidi grants to Leiden researchers.

From forwarding promising calls and arranging budgets to assisting in legal issues and keeping track of important deadlines: to associate professor Roxanne Kieltyka, the research support offered by project managers Inge Rietveld en Christina Schlüpen is fundamental. ‘The combination of our expertise…

Arts and leisure, Arts and leisure

Working effectively

Conference

Research, Communication