Portraits that gaze at you and have moving stories to tell: HEAR ME NOW says what usually remains unsaid.

Sleep disorders have a significant influence on our physical and emotional health. Sleep should therefore receive more attention within lifestyle medicine, says Professor Gert Jan Lammers. He will give his inaugural lecture on Friday 20 May entitled: ‘Getting to sleep’.

As of 1 October, David Holmes has been appointed full professor of Pure Mathematics at the Mathematical Institute (MI). His work lies at the intersection of algebra, geometry and number theory.

Ethics in Caribbean Archaeology, a new open access volume edited by Felicia Fricke, Eduardo Herrera Malatesta, and Maaike de Waal, is already generating significant interest across the region and beyond.

As sea levels rise and climate change speeds up, knowledge about the ocean becomes increasingly important. But how is this knowledge being created and how can we use it best to prepare for the future? To answers these questions, Jackie Ashkin studies the day-to-day work of ocean scientists from up c…

Training

Training

Training

Arts and culture

Workshops

Fraud and plagiarism in assessment can unfortunately be seen everywhere, even among our students. In relation to this, as an examiner you have an important role in safeguarding academic integrity.

He was a popular face in the Leiden student world and even developed his own merchandise, but all good things come to an end. After seven years, community support officer Dennis Perdok (49) is leaving this role. Last week he bid farewell to the police and to his job in Leiden’s city centre.

Alumnus Ben Smulders has worked for the European Commission for the past 33 years. ‘The discipline and depth that I experienced during my student days has helped me through various stages of my professional career.’

Paco Barona Gomez is the newest associate professor at the Institute of Biology Leiden (IBL). The Mexican researcher is fascinated by the evolution of natural products: compounds made by microbes, but also plants and animals. ‘It’s like we investigate chemical dark matter.’

What is the significance of the history of slavery for our present-day society? A special exhibition in the inner courtyard of the Academy Building features eleven insightful portraits of students and staff, and their answer to this question. The aim of the exhibition’s initiators is to make the subject…

On the university’s birthday, professors teach a class of 10 and 11-year-olds during Meet the Professor. The professors were bombarded with questions.

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…

Simulations of galaxy formation provide much more information about galaxies than a telescope. Simulations have been improving significantly in recent years. Astronomer Evgenii Chaikin made such a significant contribution to this field that he graduated with honours on February 27th.

Are you looking for a free and transparent way to submit your scientific articles for peer review? Then look no further than Peer Community In (PCI). This platform, which is supported by Leiden University, is a good alternative to publication in traditional peer-reviewed journals.

The liquidator is, according to the law, the initial designated person to signal and address irregularities in insolvencies. But when tackling fraud costs more than it generates, what does that mean for the liquidator’s course of action? And which factors obstruct liquidators in addressing these irregularities?…

To underline the urgency: Our faculty faces a significant financial challenge. With a structural reduction of €5 to €6 million in annual income, dark clouds are gathering on the horizon. Added to this are the uncertain consequences of budget cuts from The Hague, including the Balanced Internationalisation…

The democratic rule of law is under pressure due to a series of scandals and integrity issues, as seen in the recent parliamentary inquiries. Professor Ronald Kroeze explains: 'Public office holders are expected to show complete dedication, but that norm is quite absolute, and what we mean by it is…

In the short term, no reorganisation is foreseen within the Faculty of Humanities, nor are any compulsory redundancies expected. Nonetheless, structural changes remain necessary. This is evident from the faculty’s draft budget for 2026 and the accompanying financial multi-year outlook.

The social sciences are vital in navigating complexities, fostering understanding and bridging divides. This was celebrated during the faculty opening of the academic year.

It’s Saturday and electric minibuses ride back and forth bringing prospective students to Leiden University’s various faculties. They want to see for themselves whether that interesting-looking programme will suit them.

Writing essays, refining grant applications, or creating a new course curriculum—ChatGPT assists students and researchers in these endeavours. What this new technology means for working in academia, was discussion at the fourth Psychology Connected event.

During World War II, the Nazi’s ordered a coastal defensive line to be built from the south of France to Norway. This Atlantik Wall aimed to defend their territories in continental Europe from an Allied naval invasion. The defensive line went right through the Dutch city of The Hague. The material remains…

At the annual reversed constitution reception (omgekeerde constitutieborrel), the Executive Board presents an award to a student organization that has made an inspiring and impactful contribution to the well-being and social safety of its members. This year, ESN Leiden won for its program ‘Together…

Following the news that TomTom is cutting 300 jobs due to the use of artificial intelligence (AI), FGGA researchers Friso Selten and Alex Ingrams responded with opinion pieces. They place the news in a broader context and call for a more nuanced debate on AI and job losses.

All acute care staff at Leiden University Medical Center have received their first and sometimes even their second dose of the coronavirus vaccine. But how long will you be protected after vaccination and what does the genetic material of the virus do in the vaccine? Our virologists Ann Vossen and Leo…

Marleen Hogendoorn (36) studied Dutch Language and Culture at Leiden University and is now editor-in-chief of the feminist monthly OPZIJ.

Nova Verkerk has represented the interests of students as assessor for the past two years. Now her term has come to an end, and on 1 September she will be succeeded on the Faculty Board by Mette Kamerich.

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…

The LUMC, Leiden University and The Hague University of Applied Sciences want to help health professionals support behaviour change in the population. Such change would help people live healthier lives and reduce their risk of disease. The Municipality of The Hague is supporting this educational project…

The dark matter of biology: clumps of sugar molecules that, for example, form sugary webs around pathogens. We know very little about them. Wouter Remmerswaal threw all his talent into the challenge – both in the lab and as a modeller – and succeeded. He received his PhD on 12th September.

Ever since Nadine Akkerman, Professor of Early Modern Literature & Culture, came across a woman spy in her research, secret agents have kept cropping up in her work. Now there’s Spycraft, a popular history book exploring the espionage techniques used by early modern spies, which she has co-written with…

Six projects from the Faculty of Humanities recently received grants of up to 750,000 euros from the NWO Open Competition. Researchers involved tell how they will spend this money.

Het zal niemand ontgaan zijn dat de digitale dreigingen blijven toenemen. Uit monitoring door onze cybersecurity-experts blijkt dat er continu wordt geprobeerd om ook onze systemen binnen te dringen. Wat doen wij daartegen en hoe kan jij als medewerker bijdragen aan onze cyberveiligheid?

How do people vote? How rational are voting choices? How much do external factor weigh in? In this article social scientis provide some background.

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

Teacher training should do more to prepare teachers for the pedagogical aspects of teaching, Professor of Educational Sciences Tim Mainhard will argue in his inaugural lecture. ‘Children who find learning difficult particularly benefit from a close relationship with their teacher.’

Sex without mutual consent is a criminal offence. The proposed new Dutch sexual offences law aims to better protect victims of sexually transgressive behaviour. But the key issue is this: the rules of evidence have not changed, so will victims actually benefit from the new legislation?

As an experiment, student Alicia Cai relied solely on AI tools such as ChatGPT and Claude for supervision while writing her thesis. What lessons were learned?

‘Space Antenna LISA will open an unprecedented window on the Universe,’ says astronomer Elena Maria Rossi. The mission will be the first one to detect Gravitational Waves from space. These can tell us more about the beginning of our Universe and the formation of black holes. With an NWO grant of twelve…

Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life.

Online services are stored on servers in data centres. Remko Fermin researched methods to make the memory in data centres more energy efficient.

AI-related activities and programmes are springing up throughout the university. In research, for example, at SAILS, and for staff in workshops and co-creation labs. As an AI champion at the ISSC, Julian van der Kraats is involved in various AI developments.

Universele Verklaring voor de Rechten van de Mens en het Genocide verdrag, 75 jaar Oekraine

What does the future of quantum look like? Vedran Dunjko (Assistant professor at LIACS and LION) is co-founder of the applied quantum algorithms (aQa) leiden interdepartmental initiative research that will investigate this. They are part of the Quantum Delta NL consortium that was recently awarded substantial…

Maarten Jansen, professor emeritus at the Faculty of Archaeology, was appointed as Distinguished Emeritus Professor for two years at the University of Bonn. In this position, Jansen, a world-renowned specialist on ancient Mexican pictorial manuscripts, will further expand upon the long-standing collaboration…