The newly established Leiden Jewish Studies Association aims to bring together Leiden scholars working on Judaism. The first annual conference will take place in Leiden on 6 and 7 December. Leiden professors and co-organisers of the LJSA Sarah Cramsey and Jürgen Zangenberg talk about their plans.

Do all graduates in the humanities pursue a career in education? What does support for incoming students look like in Leiden? And what makes a language study so enjoyable? These and more questions were answered during an information session organised specially for twenty deans from West Brabant.

The fifteenth Annual Convention of Austria Centers took place in Berkeley, California, USA in May 2023.

On Tuesday, December 9 2025, Prof. Koen Ottenheyn delivered the last Austria Centre lunch talk of 2025. Prof. Ottenheyn serves as a professor of architectural history at Utrecht University, The Netherlands, and is a member of the Royal Dutch Academy of Sciences and the Academic Curatorium which advises…

Students in the third year of the BA International Studies programme follow the Practicing International Studies (PRINS) consultancy course. They conduct a project put forward by real clients and then present them with their research results. PRINS is so successful that it has now been running for 10…

In December 2024, Dr. Jonathan Singerton (University of Amsterdam) was the featured guest speaker at the last lunch talk of the Fall 2025 semester. A full house assembled to hear Dr. Singerton take us on a journey across the Habsburg Empire and to spots far-flung from Vienna. Dr. Singerton told us a…

In April 2025, Ms. Esther Rachow from The Hebrew University in Jerusalem presenting her ongoing doctoral research at an Austria Centre Leiden lunch-time talk. She answered a few questions about her visit below.

On Wednesday 8 March, the 'Meet & Mix: ‘Speed dating with Traineeships’ event took place in Wijnhaven. Trainees, employees and HR advisers from different organisations got together with students from the Faculty of Governance and Global Affairs to talk doing a traineeship.

Aafje de Roest turned her hobby into her job. She went from a teenager who enjoyed listening to hip hop music to a PhD candidate who focuses on how Dutch hip hop music shapes the cultural identity of young people in the Netherlands.

The "Care and the Jewish Experience" Conference, organized by the Leiden Jewish Studies Network, hosted many talented young researchers alongside established scholars of different fields. Our guests got a chance to listen to a great presentation titled “Women of Valor: Tradwives and the Sacralization…

Almost 3,500 visitors came to Master’s Open Day in Leiden and The Hague.

Whom do you ask for permission to conduct research at a primary school? And how do you collect data in countries where freedom of expression is under threat? This is what staff directly involved in the – often complex – process of research ethics recently discussed at a meeting, with the aid of some…

Over 40 hard-working programme directors and chairs met for the first time in the Academy Building on 27 October to exchange knowledge and experience and gain new inspiration. Rector Magnificus Hester Bijl opened the meeting with an update on strategic developments in higher education.

Ward chose to focus on privacy and security because ‘it’s a topic that arouses other people’s interest, though sometimes frightens them, and I really enjoy taking the time to tell people about it’.

On 28 September the famous chemists Carolyn Bertozzi visited Leiden University to speak at the LED3 seminar. Just one week later, she was announced winner the 2022 Nobel Prize in Chemistry. Leiden chemists Sebastian Pomplun and Hermen Overkleeft are fan: ‘We are extremely honoured to have hosted this…

Steeds drukker is het in populaire banen rond de aarde voor ruimtevaart. Niet alleen met satellieten, vooral met meer afval, wat onveilig is. Zhuang Tian promoveert op de juridische kant van afgedankte ruimte-apparaten. Wie troep veroorzaakt, moet het weer opruimen.

Expert in public affairs and politics Arco Timmermans advised the informer Kim Putters.

'What nature made isn’t necessarily an optimized medicine to use in the human body,’ says Professor of Biological Chemistry Nathaniel Martin. That’s why a group of Leiden researchers is making a chemistry-based improved version of the frequently used antibiotic vancomycin. They received an NWO NACTAR…

Secrecy can be detrimental to a relationship, but in the intelligence world, it is actually a basis for trust. What do relationships and trust really mean in this 'hard and seemingly shadowy' world? PhD candidate Pepijn Tuinier investigated it. The finding: social relations play a much more important…

Ten Leiden researchers have been awarded a Veni grant by the Dutch Research Council (NWO). The grant, of up to 280,000 euros, will enable them to elaborate their ideas over a period of three years.

From once controversial scientific works and historical bibles, to personal shopping lists and clothing bills. The 17th-century Bibliotheca Thysiana and the archive of the collector Johannes Thysius exhibit both the intellectual and everyday life as it was three hundred years ago. Now a brand-new digital…

Dear Sir or Madam? Many colleagues think that sounds out of date. That is why the hundreds of thousands of automated messages sent by university help desks every year will now include a gender-neutral salutation. This change is an extensive but important ICT job, says product owner Julian van der Kr…

Human cells are protecting their proteins from unfolding and aggregating. That's what biophysicist Alireza Mashaghi and his team discovered after seven years of in-depth research into the folding mechanisms of proteins. With an unprecedented approach, the team was able to study the folding of a single…

Leiden researchers have developed a groundbreaking model to advance cancer immunotherapy. Using a 3D printer, they create mini-tumors within an environment that closely mimics human tissue. They have also developed a method to monitor real-time interactions of these mini-tumours with immune cells during…

A flu virus could cause a pandemic. And then we would be poorly armed because flu viruses are starting to become resistant to flu medications like Tamiflu. Chemist Merijn Vriends successfully worked on an improved version of such medications. He will be awarded his doctorate on September 12th.

After sixteen years in various roles, Arianne Pen knew straight away: 'This is my chance.' As the new head of department at SOSZ, she uses her extensive network and experience to improve educational processes – and to give the support staff the recognition they deserve.

This month, the new digital communication code of conduct came into force. Why did this code need to be in place? And what do we gain from it as a faculty? Dean Mark Rutgers and vice-dean Mirjam de Baar explain.

A COVID-19 vaccine that specifically instructs the immune system to produce T-cells rather than antibodies is shown to provide good protection in a mouse model, Leiden University Medical Center (LUMC) researchers report in Nature Communications. According to them, the alternative vaccine may offer a…

How can we supply the growing world population with sustainable energy? At Laurens College in Rotterdam, Prof. Marc Koper speaks with the students about the crucial role of chemistry in the energy transition. Guest classes like this are a good way for school students to learn about the academic world,…

The environmental risks of new pesticides containing nanoparticles are inadequately researched, according to four Leiden scientists in the scientific journal Environmental Science & Technology. They call for an examination of the long-term and environmental effects of pesticides containing nanoparti…

Kees Waaldijk has worked for many years to map the rights, or lack thereof, of the gay and lesbian community across the world. As he bids farewell to the faculty, those rights are under renewed pressure. How does he reflect on his career?

An international team led by astronomers at Leiden University has shown in laboratory experiments that sulfur can bind with ammonium under icy cosmic conditions and form a salt that sticks to dust and pebbles. The resulting sulfur salt not only helps to explain the mystery of the missing sulfur gas,…

Cancer research generates massive amounts of data, but traditional tools often fail to fully harness their potential. How can we unlock this data to provide better treatments for cancer patients? PhD candidate Marina Gorostiola González explored this by using advanced data analysis techniques to guide…

De faculteitsraad is het medezeggenschapsorgaan van de faculteit. De raad fungeert als de vertegenwoordiger van studenten en personeel, en als klankbord voor het faculteitsbestuur. De overlegvergaderingen tussen de faculteitsraad en het faculteitsbestuur zijn openbaar en vinden ongeveer om de zes…

One discovered that arteriosclerosis resembles an autoimmune disease, while the other developed a system to aid in the search for new medications. For these achievements, Marie Depuydt and Jurren de Groot were awarded the Krijn Rietveld Memorial Innovation Award on the evening of Tuesday 4 June.

This year marks the 450th anniversary of the Capture of Brielle by the Watergeuzen (lit. ‘Sea Beggars’) and therefore the birth of the Netherlands. Student Johan Visser is contributing to no fewer than three books about the extraordinary year of 1572.

Exploring the largest structures in the universe by looking at the tiniest particles? Lydia Stofanova, PhD candidate at Leiden Observatory and SRON Netherlands Institute for Space Research, dives into this intricate connection. In her PhD research, she explored how elements like oxygen influence the…

Do you frequently search the catalogue of Leiden University Libraries (UBL) for western medieval manuscripts? Then you must have noticed important changes lately. Some 1800 summary catalogue records in Dutch were replaced by more elaborate descriptions in English. Furthermore, the catalogue interface…

During our special Fall symposium on November 28, we celebrated the 40th anniversary of Bio-Pharmaceutical Sciences. Organized in collaboration with our study association L.P.S.V. „Aesculapius”, the event brought together staff, students, and alumni for an afternoon focused on four decades of ‘Innovation…

How do fats and enzymes in the brain contribute to multiple sclerosis? In his PhD research, Daan van der Vliet combined chemistry and neuroscience to gain new insights into how brain disorders develop.

Whereas ethical research rules were previously mainly associated with the sciences, today they also play an increasingly important role in the Humanities. What are the consequences of this for researchers in the Humanities? And when do you need the Ethics Committee? We discussed this question with Dorota…

Our ever-increasing reliance on software and technologies, out of convenience, necessity or otherwise, binds us to supranational and commercial companies that provide them. Is it essential that governments, universities, and researchers ensure that they continue to be in control of their data and software?…

The Phase 3 clinical trial results of the promising Covid-19 vaccine of Johnson & Johnson are expected this month. The Dutch electron microscopy facility NeCEN helped develop the company’s vaccine, and they have now published their scientific findings in Nature Communications.

How can the university decide which partners to work with and why? This is a question many of us have, both within and outside our community. The advice presented by the Temporary Committee on Assessing Ethical Aspects of Collaborations should provide answers.

An impressive 12 researchers from Leiden University have been awarded an 800,000-euro grant by the Dutch Research Council (NWO). This will enable them to develop their own line of research over the next five years.

Protests have been raging in Iran for two months since the death of 22-year-old Mahsa Amini. The role of social media in the protests against the Iranian regime should not be underestimated, says Senior Assistant Professor and Iranian Babak RezaeeDaryakenari.

International researchers have, for the first time, pinpointed the moment when planets began to form around a star beyond the Sun. Using the ALMA telescope, in which the European Southern Observatory (ESO) is a partner, and the James Webb Space Telescope, they have observed the creation of the first…

‘By cleverly combining new techniques for analysing DNA at the level of individual molecules, we can achieve real breakthroughs in research into conditions such as dementia,’ predicts Professor John van Noort. Together with four leading biophysics research groups, he has written a review article in…

Leiden University has set up two committees to consider issues that are the focus of much attention within our community and society at large. They are the Knowledge Security Committee and the Fossil Fuel Industry Collaboration Committee. Former dean Joanne van der Leun will chair both.