With the passing of Henk Jan de Jonge on 16 April 2022, Leiden University has lost one of its most characteristic, learned and devoted professors.

The most famous cat in science is Schrödinger's cat, the quantum mechanical mammal, which can exist in a superposition, a state that is alive as well as dead. The moment you look at it, one of both options is chosen. Leiden University physicists simulated an experiment to catch this mysterious moment…

Erik de Maaker wrote a monograph on how Garo, an indigenous community of the extended eastern Himalayas, experience and negotiate such disparities. The book shows how relatedness is reinterpreted as religious practices change, and communally held land ends up being privately controlled. Erik de Maaker…

The rule of law is crumbling in the Netherlands, lawyer Lilian Gonçalves-Ho Kang You warned in her Cleveringa Lecture.

How does a farmer decide if his cow is a prize winner? An anthropologist studying these farmers should not only look at the farmers themselves, but should in particular learn how they see the world. This is what Cristina Grasseni, the new Professor of Anthropology contends. Inaugural address on 30 O…

Deep observations made with the MUSE spectrograph on ESO’s Very Large Telescope have uncovered vast cosmic reservoirs of atomic hydrogen surrounding distant galaxies. The exquisite sensitivity of MUSE allowed for direct observations of dim clouds of hydrogen glowing with Lyman-alpha emission in the…

One of the baffling aspects of international power politics is the unexpectedly major influence exercised by particular small states. Professor of International Studies and Global History Isabelle Duijvesteijn discovered that peace missions and development aid help generate power. Inaugural lecture…

The European Union increasingly needs to respond to unforeseen events and developments. This is putting it to the test. What are the effects? Professor of Foundations and Practice of the European Union Luuk van Middelaar addressed this in his inaugural lecture on 23 September.

On September 13 and 14 Utrecht University, Leiden University and Maastricht University are organizing a two day conference on Procedural rights in criminal proceedings in the European Union, offering a venue for practitioners and young scholars to exchange experiences and ideas on this subject matter.…

It matters a lot whether a fatwa is given by a female or male Islamic scholar, discovered doctoral student Nor Ismah.

During the meeting on 26 February with the future users of Aleida Nijland, design agency Studio Linse presented the interior design. The design is based on earlier input from users, and focuses on functionality, comfort and a future-proof working environment. The interior has been designed to be a pleasant,…

Donald Trump’s approach to diplomacy represents an explicit and intensified form of leader-centric and procedurally disruptive diplomatic practice. 𝐇𝐨𝐰 𝐝𝐨 𝐓𝐫𝐮𝐦𝐩’𝐬 𝐩𝐞𝐫𝐬𝐨𝐧𝐚𝐥 𝐰𝐨𝐫𝐥𝐝𝐯𝐢𝐞𝐰 𝐚𝐧𝐝 𝐝𝐢𝐩𝐥𝐨𝐦𝐚𝐭𝐢𝐜 𝐬𝐭𝐲𝐥𝐞 𝐫𝐞𝐬𝐡𝐚𝐩𝐞 𝐝𝐢𝐩𝐥𝐨𝐦𝐚𝐭𝐢𝐜 𝐩𝐫𝐨𝐜𝐞𝐬𝐬𝐞𝐬,…

LERU, the League of European Research Universities, celebrated its fifteenth anniversary on 7 March in Brussels. The network of leading European universities has now grown to include 23 universities.

With support of several companies, including Brill Publishers, Elsevier and private foundations, Leiden University Libraries (UBL) and the Scaliger Institute welcome around 15 to 20 Fellows and guest per year to consult and examine material in the Special Collections. The Scaliger Institute received…

Technology holds so much promise – from self-driving cars to enhanced physical performance from smart implants under the skin. But we should not let ourselves be caught off guard. That is the message of Bart Custers, Professor of Law and Data Science in his inaugural lecture on 21 May. ‘We don’t talk…

On 22 June 2022, the research group on Institutions for Conflict Resolution organised its second annual overarching PhD lab. During this meeting, the PhD researchers connected to COI presented the current status of their research projects.

Lecture, China Seminar

Leiden-Delft-Erasmus Universities will celebrate its tenth anniversary in 2022. In recent years, the alliance has expanded to include centres and new programmes as well as a curriculum of its own. What do the next ten years have in store?

Lotte van Dillen has every confidence in the Executive Board of new-style Institute Psychology. ‘If we work on the basis of everyone’s good intentions, we’re going to do great.’ If you lack confidence, you’re not the kind of person to jump on your bike and go off to Sicily. Want to find out more about…

Within a single generation, the digital world has changed completely: from a technical niche for ‘nerds’ to a reality that affects everyone. Cyberattacks, data breaches and system failures can disrupt essential social processes. How can we ensure that our society remains digitally resilient?

A safe place to discuss burning social issues such as racism with each other. The student workspace Space to Talk About Race and the Afro Student Association both meet this need and also organise many other activities. Three board members explain why this is necessary.

Inclusive teaching and research, a good reflection of society and a safe and accessible learning and working environment. The new Diversity and Inclusion Work Plan has set the direction of University policy and aims to create a university where everyone feels respected and at home. Diversity Officer…

Now that war is once again raging in Europe, the question of when you need to stand up against injustice has become more relevant than ever. In his Cleveringa lecture on 24 November historian Gert Oostindie will discuss why colonial domination was not regarded as an issue in Leiden for a long time.

A symposium with a festive touch was organised at Leiden University on 20 March to mark the 50-year anniversary of the marriage of Princess Margriet and Pieter van Vollenhoven. The theme of the symposium was 'Catastrophes and the Law', a theme, the royal Princess and Prince were quick to reassure the…

Do you know what the capital of St Eustatius is? Or which province Curaçao belongs to? No idea? You are not the only one: the majority of European Dutch people know little about the Caribbean islands within the Kingdom of the Netherlands. This is according to a large-scale opinion survey led by political…

After 45 years at Leiden University, it is time for Kees Goudswaard to retire. In his farewell lecture, he reflects on developments in his field: social security.

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…

German alumna Selina Holstein tells us all about the Dutch broodjes & hagelslag, the team diversity and variety in work while working for a large firm and the importance of the Noordwijkse beach.

Lecture, Sign Language & Deaf People

After a long period of formation, the Rutte III cabinet presented itself on 26 October 2017. The coalition agreement on which ministers will build is called ‘Vertrouwen in de toekomst’ ('Confidence in the future'). But what impact will this new cabinet have on our future? We asked our researchers in…

The Ministry of Health seems to be going full steam ahead in the search for a track-and-trace app to contain the coronavirus crisis. The apps are being developed with irresponsible haste, according to Valerie Frissen, Professor of Digital Technologies and Social Change.

Lecture, Studium Generale

The BLRN members have published extensively in recent years. In addition to the BLRN book series, dissertations of BLRN members published in the E.M. Meijers Institute Series, you will find below a selection of our publications. For a more complete overview of publications of each BLRN member, please…

Child marriage has become an increasingly important topic on the international human rights and development agenda. Many organisations are calling for a ban, but what problem would such a ban solve? PhD defence on 18 March 2020.

Xander Tielens, Professor of Physics and Chemistry of the Interstellar Space, has been awarded an ERC Advanced Grant to study polycyclic aromatic hydrocarbons (PAHs) in space. The combination of astronomical observations, computer models and lab research makes the research highly interdisciplinary.

AI is already widely being used in HR processes, but it’s unclear whether these applications contribute to fair and inclusive decision making. Leiden researcher Carlotta Rigotti is involved in BIAS, a big consortium research project that aims to provide answers and develop a new, trustworthy AI app…

The LUCAS Dissertation Prize has been awarded to Dr. Renske Janssen for her PhD thesis Religio Illicita? Roman Legal Interactions with Early Christianity in Context.

PhD candidate Ola Gracjasz writes about fermentation practices in Gdańsk, Poland.

In 2017, in an ordinary field, two brothers from Brabant discovered more than 100 ancient coins. The Leiden historian who examined the coins concluded that they constituted a genuine Roman treasure. Here follows a reconstruction in three acts.

The corona crisis relates to not only the medical field but also the field of the social sciences and humanities. SSH Beraad, a consultation body that aims to improve the position of the social sciences and humanities in the Netherlands, has launched a website bringing together experts in the social…

When former Swedish Foreign Minister Margot Wallström announced in 2014 that Sweden would become the first state to implement a feminist approach to its foreign policy, her idea was met with giggles. [1] But the concept quickly spread around the world. In May 2022, the Netherlands became the 10th state…

The world is full of wars, and no war is without its dead. What happens to the bodies of fatal casualties of armed conflict? The winner of the faculty Jongbloed Thesis Prize 2015 is Welmoet Wels (Public International Law). Her thesis Dead body management in armed conflict: paradoxes in trying to do…

A stable home situation is important for the successful return to society of prisoners. So what is their home situation like? And what effect does it have on reoffending? PhD defence on 16 January 2020.