In this lecture professor Harding considered the implications of Asia's 21st-century rise for its legal systems and our approaches to studying them in the new situation we confront in the early 21st century.

On 21 October, Andrea van Leerdam will defend her thesis ‘Woodcuts as Reading Guides. How Images Shaped Knowledge Transmission in Medical-Astrological Books in Dutch (1500-1550)’. To register, send an email to woodcutsasreadingguides@gmail.com.

Why does social anxiety increase in adolescence and how does it grow out of control in some adolescents?

Can politicians say whatever they want? What is the limit and when can the Public Prosecution Service act? PhD candidate Jip Stam examined the limits of free speech in criminal law. 'Intervening too soon can threaten democracy and the rule of law,' he warns.

How can public organisations create societal added value? This theme was in the spotlight at the second Leiden Leadership Lunch, which was held on Friday 28 September. Students, academics and government professionals joined in the discussion.

Eine Archäobotanische untersuchung zu Umwelt und Landwirtschaft der Ältesten Bankkeramik.

Managing scarcity to serve the public interest is a classic government task. An important way to execute this task is by allocating individual rights that are only available in limited quantities, such as CO2 emission allowances, gambling licences, subsidies, radio frequencies, public contracts and…

This thesis describes the antimicrobial discovery strategy developed in our group, the den Hertog Group at the Hubrecht Institute. It includes a cultivation-based screening approach for novel antimicrobial agents from the source of fungi, and a bacterial time-lapse imaging approach for antimicrobial…

The book 'Dutch Income (Re)Distribution, trends 1977-2019' was published on the 14th of October. Files related to the project can be downloaded via this website.

This work analyzes ritual practices and knowledge related to the Mesoamerican calendar with the aim of contributing to the understanding of the use and conceptualization of this calendar system in the contemporary K’iche’ community of Momostenango, in the Highlands of Guatemala.

For more information or questions about the Pre-University College, you can contact us or drop by the Old Observatory.

On 24 January 2023 Tobias Jones successfully defended a doctoral thesis and graduated.

From the birth of the universe to the molecules in a planet's atmosphere. The first five pictures from the James Webb Space Telescope (JWST) show the enormous range in which the space telescope can operate. Ewine van Dishoeck, professor of molecular astrophysics, took a look at the first images Tuesday…

De klimaattransitie is in volle gang: de vervuilende industrie moet plaatsmaken voor duurzame productiemethoden. Werknemers in deze industrie zullen hierdoor nieuwe banen moeten vinden. Dat zal niet iedereen lukken. Heb oog voor die groep, waarschuwt politiek econoom Lars van Doorn.

The Voices of Africa platform is ten years old and has just recently won the annual popularisation prize of the Netherlands Graduate School of Linguistics (LOT). High time for a chat with Jenneke van der Wal, Maarten Mous and Nina van der Vlugt about the importance of the platform and plans for the…

On 4 December 2020 Fabiola van Dam will defend her dissertation "Het middeleeuwse openbare badhuis, fenomeen, metafoor en schouwtoneel" (Utrecht). To attend this event online please send an email to: fab.dam@usa.net (mentioning "4 dec" in the subject line).

On NPO radio programme 1op1 about nuclear weapons negotiations, Jaap de Hoop Scheffer, Professor of International Relations and Diplomatic Affairs at the Institute of Security and Global Affairs, says that ‘all nuclear treaties must be scrutinised afresh.’

Bert Koenders, Professor Peace, Justice and Security at the Institute of Security and Global Affairs (ISGA) appeared live on the ‘BNR de Wereld’ special broadcast ‘De Grote Vredesshow’ (The Great Peace Show). The radio show was hosted live from Wijnhaven in collaboration with the Faculty Governance…

Campus The Hague welcomed a group of young professionals in honor of the celebration of 444 years of Leiden University.

Human AI is where artificial intelligence and machine learning meet philosophy, cognitive science, and the creative arts. Examples of research questions in this domain are: 'Can an algorithm be creative by human standards?', 'Can creative processes, such as composing music or writing poetry, be modelled?',…

In this research group, led by Dr. Joost Beltman, the aim is to employ mathematical and computational dynamical modelling approaches in order to quantitatively and mechanistically understand the dynamical behaviour and regulation of intracellular networks of genes, proteins and metabolites as well as…

Meet the scientists within the LED3 community

From November 4 to 10, the exposition CRITTERS will be exhibited in Naturalis Biodiversity Center during Beyond Human Festival. In CRITTERS artists and researchers are looking for a connection between technology and natural organisms. When does technology become a natural being? And when we examine…

Didi van Trijp started her PhD project at LUCAS in October 2015. Her PhD project is part of A New History of Fishes. A long-term approach to fishes in science and culture, 1550-1880, a project directed by prof. dr. Paul Smith.

The Netherlands Organisation for Scientific Research has awarded dr. Lucien van Beek a Veni grant. This grant offers young researchers the possibility to develop their innovative ideas for a period of three or four years. The awarded research proposal focuses on the Ancient Greek dialects' contribution…

Policy makers urgently need scientists’ help with the phenomenon of big data. This was the view expressed by Prince Constantijn, speaking at the opening of the Leiden Centre of Data Science, the virtual centre for research on big data at Leiden University.

On Tuesday 12 January 2021, the Leiden Law School thesis prizes were awarded at the New Year’s event.

The Van Vollenhoven Institute for Law, Governance, and Development and the Grotius Centre for International Legal Studies organised the Van Vollenhoven Lecture 2013.

The European Commission sees increased labour migration as a solution to the growing personnel shortages, but the Dutch Labour Inspectorate argues that this is not a tenable business model. Professor of Economics Olaf van Vliet discusses the advantages and disadvantages of labour migration for the economy…

Rosmarijn van Kleef hopes to defend her PhD thesis soon on the liability of football clubs for the misconduct of supporters. In view of the upcoming European Football Championship, a highly topical subject of which a glimpse is given below. The defence will take place on 19 May in Leiden.

Last week, a large number of farmers came to The Hague to ask attention for the problems they are faced with. They certainly received a lot of attention but does this mean their problems are actually being addressed?

Today, February 6th, the new course Wicked Problems Lab (in full: Wicked Problems Lab: working with governance, leadership and social innovation) started. This new course for third-year Honours students is part of the Honours Track

On Energiepodium.nl, Rob de Wijk, Professor of International Relations and Security at the Institute of Security and Global Affairs, states that the Nord Stream 2 Project, a pipeline for Russian gas into Europe, causes a conflict between geopolitics and commerce.

Leiden University (UL), the Delft University of Technology (TU), and Erasmus University in Rotterdam (EUR), have been working together on a wide variety of terrains in research, education and valorisation.

In the specialisation Economic and Consumer Psychology, part of the Master in Psychology, you will study the psychological mechanisms that underlie our decisions and choices concerning consumption and other economic behaviours.

We focus on a better understanding of the mechanisms of cancer drug resistance and metastasis.

The mission of Software and AI in Business (SA&B)connects the domains of science, business, and policy. Scientific research we focus on at Leiden in areas such as artificial intelligence promises to reshape our societies for the better. Translating science into positive societal impact however requires…

Early Modern Medievalisms: The Interplay between Scholarly Reflection and Artistic Production

In this project, we aim to develop mathematical models to mechanistically and quantitatively predict the dynamics of cellular stress pathway activation and its relation with toxic effects when cells are exposed to various toxicants.

The research within the Division of Cell Systems and Drug Safety, headed by Prof. Bob van de Water, is focused on novel therapeutic modalities and novel concepts in early drug discovery, in order to develop more effective and safer therapeutic strategies. We generate advanced cell and computational…

Our research in the area of safety sciences aims to increase the mechanistic understanding of cellular toxicity of drugs and, in a broader sense, chemicals.

On this page, you will find the recordings of the Tuesday Talks since April 2025. Recordings of the precursor to the Tuesday Talks, This Week’s Discoveries, are also available here.