How do you progress from an immense gas cloud somewhere in the universe to a star with planets? Research by Astronomy PhD student Martijn van Gelder sheds more light on the earliest phases of this process. He will receive his doctorate on November 24th.

Just as some people today dislike English influences on the Dutch language, in early modern times people also criticised the Frenchification of Dutch. But to what extent did French actually leave its mark in our language? PhD student Brenda Assendelft made a surprising discovery. PhD defence 24 May.

The US intervention in Venezuela and the country’s ongoing instability pose risks for the Dutch Caribbean. How serious is that threat? ‘Dutch men and women will have to defend our external borders there,’ says Professor by Special Appointment of Kingdom Relations, Wouter Veenendaal.

'How do you write a slogan to win an election?' Steven Ooms answers this question in his PhD research into ideas about good prose in the time of Caesar and Emperor Augustus. This period is considered a high point for the development of literature. The Roman Cicero and the Greek Dionysius of Halicarnassus…

Experiencing what it is like to attend a lecture, asking professors questions and even trying your hand at homework: Experience Days help prospective students learn more about all the programmes offered by the Faculty of Humanities.

What do you do with a museum collection full of individual white Nobel laureates at a time when diversity, inclusion and teamwork reign supreme? Ad Maas, professor by special appointment, and researcher Hilbrand Wouters have been awarded an NWO Museum grant to answer that question.

Expert in Classics Renske Janssen has been awarded a Rubicon grant. She will use the grant to conduct research at the University of Edinburgh into how Roman law was perceived by society at the time.

With the new academic year, the Honours Academy welcomes a new assessor: Maarten Kolpa. What does an assessor do? And what can he do for honours students? Maarten talks about it in an interview.

A new social media campaign launched by students from across Europe, including Frederik Behre from the Europa Institute, is aiming to motivate young Europeans to go to the polls.

With the What's Next? series we hope to inspire current Media Technology MSc students, show the variety of paths taken after the studies, and bring together alumni. Editions of the series are generally organized around a particular theme by Media Technology MSc students themselves, and followed by social…

The 22nd of march 2023, political scientist Lukas Spielberger will defend his dissertation ‘Lessons from Europe for the study of international bank cooperation’. He wrote his thesis about the cooperation of central banks during international financial crises: ‘central banks pay more attention to shared…

The student navigator ‘Find your way’ helps students find their way around the university. The ombuds officer for students, Eugène van der Heijden, can also be found on this roadmap. Eugène talks about his work as ombuds officer and what he does for students.

Rafaëlle Kwakkel is currently studying Literary Studies: Literature in Society. In addition to her studies, she works at Studium Generale and enjoys being creative.

According to Nivja de Jong, second language acquisition is 'the most fascinating subject in linguistics'. As a recently appointed professor of Second Language Acquisition and Pedagogy, she studies the question of how best to teach people a new language.

Over the past five years, medical anthropologist Annemarie Samuels has studied palliative care in different parts of the world. Over the next five years, she will focus on end-of-life care in the Netherlands. 'Everyone has the right to good care at the end of their life, but what that means differs…

Working in an operating theatre is a highly competitive sport. High work pressure, stress, and unexpected developments during operations. This requires a lot from care professionals who need to be mentally resilient to be able to deliver peak performances time and time again. What makes a care professional…

Maxine David is a lecturer in European Politics in the Institute for History and is a busy bee when it comes to teaching. When countries started locking down due to the corona virus, she was in the United States. After some difficulty getting a flight back to her home country, the United Kingdom, she…

Imagine scanning lion dung or a mouse dropping and instantly knowing exactly what and how much the animal has eaten. Thanks to new DNA techniques, this is becoming increasingly feasible. PhD student Kevin Groen tested how effective these techniques are at unraveling the diets of wild animals.

Neuroscientists Ineke van der Ham (Leiden University) and Anouk Keizer (Utrecht University) regularly use VR in their research. Their experiences with the medium raise many questions about the ways VR is experienced by different people. Therefore they conducted an VR experiment at the cinedans festival…

Archaeology is the only science that allows us to study the material traces left by most of human evolution. But what happens when we bring philosophy into the picture? A new series of papers demonstrates how philosophical reflection can enrich archaeological research - especially when grappling with…

How can we ensure that we act climate-proof and climate-neutral? We asked climate and earth scientist and lecturer at the Climate Change course Joeri Reinders.

Your own food truck, working from the comforts of a tropical beach in Bali, or a permanent job? Children, living together, getting married, a registered partnership? Thirty-somethings have a lot to think about. On Monday 16 April, Psychologist Nienke Wijnants gave a popular lecture to 120 young alumni…

The British people have voted in favour of Brexit: the United Kingdom will leave the European Union. How will this vote be transformed into a legal and political reality?

The motivation of student teachers for the teacher's profession depends on various factors. Teacher training can influence the commitment of students. That is stated in the doctoral thesis of Ikupa Moses, who graduates from the Leiden University Graduate School of Teaching (ICLON) on 7 September 201…

Being able to share your emotions is important for social development and for making friends; the same principle also applies in Sesame Street. The makers of the American Sesame Street programme have introduced a new character, Julia, in the hope of helping children and parents understand autism sufferers…

Could water be present in planet-forming disks before the formation of rocky planets? The James Webb Space Telescope may have found evidence for that. Webb has for the first time observed water in the inner disc around young star where at greater distance, giant planets have already formed. The research…

Just like us, plants also produce growth hormones, and they also go through an ageing process. The study of the genes and mechanisms behind these processes is useful not only for crop breeding and agriculture, but also for medical research. That is the view held by Professor of Plant Developmental Genetics…

At the Faculty's opening of the 2019-2020 academic year, the focus lay not just on the vision for the future of the social sciences, and the opening of the refurbished library, but above all on the government's plans for university financing. The speeches included an interview between Annemarie Samuels…

How can you learn about women’s history if they are under-represented in historical sources? Look at news coverage of crime, says Clare Wilkinson, PhD candidate in gender and history. ‘Historical crime reporting offers a glimpse into forgotten groups.’ The doctoral defence will take place on 23 Apri…

On Human Rights Day 2024, the International Court of Justice is charged by the General Assembly with delivering an Advisory Opinion asking, in effect, what does the climate crisis imply for the rights of vulnerable states and people? Researcher Jens Iverson shares his thoughts on this event.

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

Contrary to what one might expect, societal actors influence China’s foreign policy. PhD candidate Sabine Mokry investigated how Chinese academics and think tanks impact the authoritarian leadership’s views on what constitutes the country’s national interest in the international arena. On 14 November…

On 1 January 2019, Paul Wouters started his role as the new dean of the Faculty of Social and Behavioural Sciences. Time for a short introduction to the Professor of Scientometrics and former director of the Centre for Science and Technology (CWTS).

From games to scavenger hunts: museums already do all sorts of things for children. But how do children really look at art? Do paintings affect them more if they receive information that is specially tailored to young visitors? Join psychologist Francesco Walker at the Rijksmuseum in Amsterdam and see…

Developing a digital guest lecture for high school students. Jan Sleutels was immediately enthusiastic when he got asked to do this. The end result? Together with his colleague Maarten Lamers, he created the guest lecture 'Thinking about Artificial Intelligence'.

George Floyd's death still leads to fierce protests against police violence and racism on a daily basis in the United States and abroad. We asked Paul Wouters how he experiences these developments and what this will mean for our faculty.

Alumni associations are there for both recent and older alumni to exchange experiences about the field and more. We spoke to Arla Mannersuo, board member of the International Studies Alumni Association, about the benefits of membership and what happens behind the scenes.

For ten months, PhD student Sanne Rotmeijer worked on the editorial boards of various news media on Curaçao and Sint Maarten. She also tracked how news goes around on the streets and circulates on social media. The aim? To find out how stories became 'the news'.

Hoping to learn something about the human brain, Leiden researchers are creating a setup to shoot single photons, particles of light, into someone’s eye. ‘The eye is a passageway to the brain.’

‘If it rains later, then I’ll take the car.’ In order to reason, we use sentences containing ‘if’ every single day. But how does that work exactly in the Dutch language? Alex Reuneker wrote his 628 page dissertation on the subject. Ceremony on 26 January.

The Legal Tech Challenge 2026 kicks off on 5 February. Ishana Bhadai, Lizzy Streng and Jonathan Scholten van den Belt were last year’s winners. Here, they share their experiences stepping up to the challenge.

In a conversation, you provide all sorts of information to the listener. For example, you can indicate that you're certain about something, or that you heard it through someone else. Associate Professor Jenneke van der Wal has been awarded a Vici grant to investigate whether the way people do this is…

The international regime governing displacement shows a number of gaps, most notably with regard to (internally) displaced people who are not covered by the definition of refugee of the Refugee Convention. These protection gaps translate into solution gaps for displaced people.

We are excited to restart the Media Technology alumni talk series, organized by students, for students and alumni. Upcoming edition will bring us two alumni to share their unique journeys after Media Technology: Ella Keijzer and Bastiaan Terhorst.

On 27 February 1976, two men wearing motorcycle helmets and carrying loaded guns ring the door of temping agency Cito. A security van has just delivered cash. The suspect later claims in court that he and his friend were just doing a ‘dress rehearsal’ – preparing ahead in other words, but not an actual…

What Accounts for the Variety of National Policy Responses to the COVID-19 Pandemic in Europe?

This paper examines the need and possibility for developing online resilience-based approaches in response to COVID-19 vaccine conspiracies, often linked to the far right.

NATO not only safeguards our security and stability, but also defends Enlightenment principles, promoting prosperity, health and freedom. This is what eminent psychologist and thinker Steven Pinker argued to a packed Great Auditorium.

For the Bachelor Honours Class 'Mass Extinction', students produced podcasts about the past, the present and the future of mass extinctions. What exactly is lost when a species goes extinct? What are the practical consequences? But also: does humanity have the moral duty to protect other species?

You may know it by the umbrella term 'citizen science'. You may also use terms such as volunteer mapping, patient co-researcher, or even community engaged learning to describe participatory practices in your research or teaching. No matter what you call it, there’s plenty going on when it comes to this…