That the tax authorities are allowed to impose taxes is widely known. What is less well known is when the tax authorities must impose taxes. And what to do when one set of regulations requires the tax authorities to impose taxes while other regulations prevent them from doing exactly that? Vergouwen’s…

A huge shiny aluminium object stands in the middle of the Polderlab in Oud Ade. Are the researchers trying to make contact with extraterrestrial life? Certainly not; they are using the ’Moon landers’ to measure whether innovative forms of agriculture reduce greenhouse gas emissions. Fleur van Duin works…

Zār jewellery from Egypt can be found in many museums and private collections in the West, but for a long time very little was known about it, except that it was used in rituals to protect against spirit possession. PhD candidate Sigrid van Roode has explored its history and discovered that the jewellery…

The field of leadership suffers from ‘adjectivism’, says Professor Ben Kuipers. He immediately caveats this by saying that he too is going furnish the word leadership with an adjective: ‘Public’. But the goal here is to view leadership in a different light in his new role as Professor of Public Lead…

Does medicine make patients feel better or worse? We are getting better at predicting this from people’s DNA profiles, says Professor Jesse Swen. ‘It never fails to fascinate me how one DNA base pair can have such a huge effect on treatment with medication and the outcome.’

Afghans who came to the Netherlands in a hurry, refugees who were used as leverage by Belarus and boat refugees who tried to reach Europe in an increasingly desperate manner: the newspapers were once again filled with news about migrants. Today, on International Migrants Day, we talk to professor Marlou…

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

As part of the celebrations around the 25th birthday of the Faculty of Archaeology, a panel discussion on the future of archaeology was organised on December 13th. For this discussion an international panel of scholars was invited to give their perspective and enter into conversation with our Faculty…

The image of the European Union (EU) as a remote law-making machine is widespread. Quite often journalists and politicians deliberately depict ‘Brussels’ as bureaucratic, even undemocratic, bypassing its citizens. And many of us buy into that image. Nikoleta Yordanova, Anastasia Ershova and Aleksandra…

The Netherlands in September 2021 could be characterised as a low-trust society. Trust in the government has declined significantly in the past one-and-a-half years: from almost 70 percent in April 2020 to less than 30 percent in September 2021. There has also been a slight decrease in trust between…

Three Leiden professors have recently been awarded the most prestigious scientific accolade in the Netherlands: Maria Yazdanbakhsh and Marc Koper have been awarded a Spinoza Prize and Judi Mesman a Stevin Prize. They received their prizes on 13 October.

On 1 July – Keti Koti, in the year ahead, our university community will be able to reflect extensively on the history of slavery by engaging in research, education and many other activities.

At the conference of the Honours College Science & Society, students present TED Talks on a social issue of their interest. ‘It brings together everything they have learned in the past two and a half years.’

Since 2009-2010, the West viewed China as more assertive. Especially after Xi Jinping came to power in 2012, the country abandoned Deng Xiaoping’s ‘low profile’ foreign policy. Friso Stevens explains in his dissertation where this change has come from. The dissertation defence is on 28 March.

Not everything that comes close to a black hole is swallowed by it. Black holes can also hurl material away, and that chance turns out to be considerably bigger than previously thought. Martijn Oei's accidental discovery and his subsequent research on it earned him a cum laude promotion on 12 Decemb…

What will happen if the lights in a large part of the city are switched off? How many stars can you see without all that light pollution? This is what researchers, artists and the residents of Leiden are going to investigate during Seeing Stars Leiden on 25 September. ‘Leiden is the ideal place for…

With a recently published major research project and an exhibition at the Rijksmuseum, the struggle for independence in Indonesia has been thrusted back into the spotlight. Leiden University is devoting attention to this topic as well. History students Sander van der Horst and Melle van Maanen joined…

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…

2021, again, sees a rich harvest of bachelor theses in Political Science. Students have been tackling fascinating subjects—ranging from European solidarity in the COVID-19 crisis to the representation of women in democratically elected parliaments—and crowning their research projects with interesting,…

What would it be like if you could work with the best in your field every day? Alumnus in International Studies Niels Drost knows just what that’s like. He currently works as a junior researcher at the Clingendael Institute.

South Korean smash hit Squid Game is on track to becoming the most successful Netflix production ever. The series is number one in over 90 countries. Professor and Korea expert Remco Breuker can see why South Korean pop culture is becoming so popular, also outside Asia.

Psychologist Ellen de Bruijn studies the effects of hormonal fluctuations on behaviour and on the brain over a woman's life course. With an ERC Consolidator grant, she and 3 PhDs and a postdoc will further her EEG research on the different stages at which girls and women experience strong hormonal f…

Luca Giomi has the first results of his ERC consolidator grant. He discovered that epithelial cells move collectively but in different ways, depending on the scale you look at. It is hexatic at small scales, and becomes nematic at larger scales: it is a multiscale order. This collective movement of…

In the new ‘Educatips’ column, Psychology lecturers share their most important lessons about teaching. This month: Elise Seip wants to help students get out of their head and into their body. She starts every work group with mindfulness.

UNESCO has recognized an international set of fifteen manuscripts about Ferdinand Magellan's first circumnavigation of the globe and the three Hikayat Aceh manuscripts as World Heritage. The manuscripts are inscribed in the global UNESCO Memory of the World Register. This list contains documentary heritage…

People who have negative expectations about a treatment actually experience more pain. Merve Karacaoglu discovered in her PhD research that anxious and pessimistic individuals are particularly susceptible to this nocebo effect. However, this sensitivity comes with a silver lining.

Research

In the eighteenth century, the Dutch East India Company (VOC) housed its enslaved people on ‘Slave Island’ in Colombo, the capital of Sri Lanka. Today ‘Slave Island’ is under serious threat from property developers. Senior lecturer Alicia Schrikker, together with her Sri Lankan colleagues Iromi Perera…

Lack of money impacts how a person takes financial decisions: now or preferably later. Procrastination and avoidance behaviours in turn have an effect on lack of money, which can result in a sense of loss of control. These are the findings of psychologist Leon Hilbert in his PhD research, although the…

Due to technological and societal developments, we are being flooded with more information than our brains can process. How does this affect our decision-making, both as individuals and as a society? And can we learn to make better choices? This is what Lotte van Dillen will explore with her profess…

Astronomers have used data from the European Gaia Space Telescope to discover 55 high-speed stars launched from the young star cluster R136 in the Large Magellanic Cloud, a satellite galaxy of the Milky Way. This increases tenfold the number of known “runaway stars” in this region. The team of astronomers,…

Fear of repayment demands is causing people to forgo benefits and financial support, even when they are eligible. This was one of the finding of Olaf Simonse in his PhD research on financial stress and the non-use of social services. His proposal: 'Let the government take the initiative.'

How can parents avoid passing on stress and mental health problems to their children? Professor of Stress-Related Psychopathology Bernet Elzinga develops simple interventions to help both parents and young people. For her research, she has been awarded the Spinoza Prize, the highest academic honour…

Glorious sunshine, dozens of enthusiastic academics and huge numbers of Leiden residents ensured that this year’s special jubilee version of 3 October University was a great success.

Americans are electing a new president in November but they also have other choices to make in the polling booth. Alumnus Sanne Rijkhoff works at a Texas university and is trying to help make students more aware of the elections.

An Honours Class about the ostensibly unrecognisable worlds of insular Southeast Asia teaches students a fundamental piece of wisdom: "We do not differ much from the people at the other end of the world."

Artificial intelligence (AI) is often portrayed as a technological saviour for addressing climate change. But there are risks associated with its use, observes Barrie Sander.

In many Central and Eastern European countries, a period of greater openness emerged in the late 1980s. How did this affect the future perspective of residents? And can we learn anything from this period for our current times? University lecturer Dorine Schellens delves into the literature to investigate…

A restless night aggravates symptoms in those experiencing suicidal thoughts, as psychologists Liia Kivelä and Niki Antypa have found in their study on the short-term risk factors of suicide. They argue that targeting sleep could thus be essential for suicide prevention.

For her research, PhD candidate Liselore Tissen put one famous painting after another through a 3D scanner. The resulting reproductions were indistinguishable from the originals. But what does this mean for our interpretation of art?

Lecture

Lecture, LUCIS What's New?! Series

On Friday, June 28, 2024, emeritus professor Rudy B. Andeweg passed away. His passing marks the loss of an important figure within the field of political science, not only nationally, but internationally. Here we remember an outstanding researcher, inspiring teacher, capable administrator and an involved…

Arts and leisure

Lecture

Lecture

Lecture

Lecture