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.

While the Netherlands was in lockdown because of the coronavirus, PhD candidate Koen Rijpkema began his research into the same virus. In the lab, he developed molecules that can inhibit an important viral enzyme.

In 2025, our colleagues from the Institute of Psychology once again made a strong presence in the media. From (inter)national newspapers to podcasts, discover where they shared their expertise in the media this year.

Exhibition

Lecture, Tuesday Talk

Lecture, Com(parative) Syn(tax) Series

A million people in the Netherlands attempt to quit smoking each year, often without lasting success. Health psychologist Kristell Penfornis carried out doctoral research into the role of self-image in smoking cessation. “If smoking is normal in your social circle, it more easily becomes part of your…

The digital age offers unprecedented opportunities: information is always accessible, systems are interconnected, and processes are automated. However, these developments also give rise to new threats. During the Night of Digital Security on 26 May at the Wijnhaven building, more than experts shared…

Researchers using NASA’s James Webb Space Telescope may have detected atmospheric gases surrounding 55 Cancri e, a hot rocky exoplanet 41 light-years from Earth. This is the best evidence to date for the existence of any rocky planet atmosphere outside our solar system.

The orbits of 27 stars orbiting closely around the black hole at the center of our Milky Way are very chaotic. As a result, researchers cannot predict with confidence where they will be in about 462 years. ‘That is astonishingly short,’ says astronomer Simon Portegies Zwart who collaborated on the r…

A new collaborative monograph of democratic theory, The Sciences of the Democracies, was released by UCL Press on August 7. The book, in the style of a democratic manifesto, is written by a large number of co-authors in a bold attempt to expand and deepen how democracy is studied and understood. Among…

A variety of age checks are required, both in order to protect children and to ensure that they can participate online, a new study funded by the European Commission finds. The article on the study, co-authored by Simone van der Hof, Professor of Law and Digital Technologies at eLaw, was published in…

The experiential expertise of people with a disability needs to be integrated in diversity & inclusion policy. This message was the common thread at the annual Diversity & Inclusion symposium. Students and staff members engaged in conversation about how the university can become more accessible.

Following our Leiden Brussels Alumni Event, I (external officer M. Blaauw, ed.) met our very own Leiden Law alumna Helena-Loutas Paraskeva. An Australian who works for the European Commission. Interesting, how did she get this job, what does she do and how did her Master in Leiden affect or influence…

More focus on diversity in Antiquity, workshops for students with disabilities, and a card game to share stories about diversity: these and other projects will receive funding from the JEDI Fund in 2023.

Lecture, Keynote

Beurs

Career and apply for jobs

Lecture, Tuesday Talks: Science Insights

Conference

Lecture, Sociolinguistics & Discourse Studies Series

Four master's students from Leiden University participated in this year’s edition of the International Migration and Refugee Law Moot Court, hosted by Antwerp University. Following the verbal rounds held between 21 and 22 March, the team went through to the finals, achieving second place overall.

Jantien Hadders (50), head of Education and Research Policy at FGGA, lost the love of her life and, to her great sadness, did not become a mother. It was precisely by being able to share her loss in the workplace that she slowly regained trust in herself.

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.

The new online diversity and inclusion dossier combines all faculty initiatives on this topic. But what is the situation on diversity and inclusion at Humanities? An interview with Aurelie van ‘t Slot, policy advisor Internationalisation, Diversity and Inclusion.

Ratna Saptari is since 2007 Assistant Professor at the Institute of Cultural Anthropology and Development Sociology. She has always been involved with issues of human rights and Indonesian workers' rights. This August she retired. But she won't sit still. She continues her voluntary work and wants to…

Sexual exploitation of children abroad: the Dutch government calls on its citizens to not look away from 'suspicious situations’ while turning a blind eye to the root causes of the problem themselves. Koning, who recently obtained her PhD on transnational sexual exploitation of children from Leiden…

The response of international organizations to the problems of cross-border death and gift taxation needs to be revisited, according to PhD candidate Vassilis Dafnomilis. PhD defence on 3 June 2021.

Dozens of Dutch nationals are being held in detention facilities in Northeast Syria or have been transferred to Iraq, risking torture or the death penalty. PhD candidate Ida Asscher says the Netherlands should repatriate them. 'States must comply with international law, even in difficult situations.…

Course and exam enrolment

Lecture, LUCIS What's New?! Series

Lecture

Arts and leisure, Arts and leisure

While the United States continues to carry out drone strikes, and China conducts large-scale cyber and information operations, Ukrainian and Russian soldiers live in trenches, and NATO sends tanks to the Donbas front to force a breakthrough. Has war changed dramatically in recent decades as a result…

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

We started this year as we ended it in 2021: in a lockdown. But the world continues to open up. We are occasionally allowed to go into the office and students are able to return to Campus. Continue reading to find out what the rest of the year has been like.

Good food. This is an important topic in the interview with Chair Ruben Venema and Activities Director Martine Feteris from the Leiden Vegan Student Association, which was launched in May. An interview rounded off with an extra helping of recipes.

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.

D&I Event

Studying is already a lot of work, so on this page you'll find the most sought-after information for first-year students. Do you feel something important is missing? Let us know via the feedback button, and we'll improve it for the next student.

Studying is already a lot of work, so on this page you'll find the most sought-after information for master's students. Do you feel something important is missing? Let us know via the feedback button, and we'll improve it for the next student.

Lecture, Tuesday Talks: Science Insights

Arts and leisure, Arts and leisure

Lecture

Conference

Full-day International Workshop

Lecture, CHiLL series

Lecture, Sociolinguistics & Discourse Studies Series