The youngest institute of the Faculty of Science has had a real growth spurt in recent years. It is up to Martina Vijver as the brand-new scientific director to secure that growth and further develop CML. 'This is a challenge that I am really looking forward too,' says Vijver. 'Together with my colleagues…

For the third time in a row, Leiden University has received a positive assessment in the Institutional Audit for the way it provides good teaching and a vibrant quality culture. Rector Magnificus Hester Bijl was presented with the official certificate.

Sieger van den Aardweg is Knowledge Base Manager for the Grant Development Team at the Strategy and Academic Affairs Directorate, part of Administration and Central Services. He is working within the Leiden Research Support programme on tailored information provision, in collaboration with several institutes.…

Floreat et crescat. Flourish and grow. That was what was wished for the Mathematical Institute at its opening. Now, the institute proudly celebrates its 70th anniversary. Time to reflect on how it all began. And importantly, how is it doing now?

As of 1 September Miranda van Eck will be the new Scientific Director of the Leiden Academic Centre for Drug Research. She succeeds Hubertus Irth, who led the institute since 2016. Van Eck has been appointed for a period of four years.

An article about our Mathematical Institute (MI) appeared on 23 June in the University newspaper Mare.

A year ago, we launched something new: a way of working together that puts collaboration, equality and mutual support at the heart of how we lead. But how does that actually play out in daily life? Three colleagues share their experiences with collegial institute boards.

As of 1 May Gianne Derks is the new Scientific Director of the Mathematics Institute. Derks succeeds Hermen Jan Hupkes who temporarily assumed the role. Derks has been appointed for a period of four years.

As of 1 July, Marcellus Ubbink is the new Scientific Director of the Leiden Institute for Chemistry. He will succeed Hermen Overkleeft, who led the institute since 2017. Ubbink has been appointed for a period of four years.

As of 1 September, Martina Vijver is the new Scientific Director of the Institute of Environmental Sciences. She succeeds Arnold Tukker, who led the institute since 2013 and served the maximum term of two times four years. Vijver has been appointed for a period of four years.

The city of Leiden has a unique combination of knowledge institutions. To ensure this knowledge flourishes and the city gains the maximum benefit from it, the Leiden City of Knowledge partnership was launched five years ago. A new partnership agreement will be signed on 11 November.

The COVID-19 pandemic forced many staff of Leiden institutes abroad to leave their posts in a hurry. How is the KITLV Jakarta team doing now? Director Marrik Bellen talks about the turbulent times for this Leiden institute and its staff. And can we learn anything from the Indonesian approach?

PhD defence

As of 1 September, Michel Mandjes has been appointed full professor of Probability and Operations Research at the Mathematical Institute. He succeeds Frank den Hollander, who will retire on 1 October. ‘The combination of deep thinking on your own combined with working towards solutions together with…

Study information

During the last couple of months, Leiden University has conducted many constructive discussions with the University Council and many other experts and groups from the academic community. Based on their input, the Executive board has decided to create a preliminary policy regarding our ties to Israeli…

Pim Overgaauw is at his best when he can support others. His new position as Institute Manager of the Mathematical Institute is therefore a perfect fit. ‘My main goal is to ensure that our mathematicians can focus on the maths.’

Francesca Albanese, UN Special Rapporteur for human rights in the occupied Palestinian territories, visited Leiden Law School on 8 December within the scope of International Human Rights Day.

Frans de Haas, professor of Ancient and Medieval Philosophy and Director of the Dutch Research School of Philosophy, will join the management team of the MI on a temporary basis, in any event until 1 January 2022, in the role of Scientific Director-Change Manager.

From human rights in Sudan to a new cult of heroes in China. During the board members' visit, the Institute of Private Law and the Institute for Area Studies clarified their social relevance in no uncertain terms. What's happening here in education and research?

Sebastian Pomplun manages to reach proteins with drugs even where this was thought impossible. That is why he and his research group have been allowed to join Oncode Institute. With nine others, he had been selected from 72 applicants to contribute to Oncode Institute's mission: to accelerate breakthroughs…

The university is home to many pearls of research institutes that do not make the news every day. The Executive Board visited one such pearl, the Institute of Philosophy, on Tuesday 1 July. It resulted in an inspired conversation.

He came to the Netherlands for three months and never left. Marcello Bonsangue is the new scientific director of the Leiden Institute of Advanced Computer Science (LIACS) since January this year. 'I think it is important to be there for the people of our institute. My door is always open.'

Ever since its foundation, Leiden University has turned its gaze outwards to other cultures, languages and forms of academic practice. It is only natural, therefore, that we as a university have four institutes abroad: the Royal Netherlands Institute of Southeast Asian and Caribbean Studies (KITLV-KNAW)…

Each research institute has its own dynamic. The Executive Board is visiting our institutes to find out what they are up to. On 24 June, it was the turn of the Institute for History. ‘History helps us make sense the present, whether through family stories, local issues or world politics.’

The Executive Board is visiting the university’s institutes to find out what is going on. On 8 July 2025, it was the turn of the Institute of Environmental Sciences (CML), one of the fastest-growing institutes at Leiden University. ‘Our main aim is to preserve our planet for future generations.’

As of 1 November, Jan Vonk has been appointed full professor of Mathematics at the Mathematical Institute (MI). The institute is delighted with Jan’s appointment, as is he. ‘At the MI we combine the abstract with the concrete like no other.’

He started out as a temporary staff member at the CML’s education office, and now – eight years later – Jasper Williams is the institute’s new Director of Operations. In this interview, he talks about entrepreneurship, making a social impact, and playing competitive bridge. ‘I like doing things properly,…