Leiden2022 is a 365-day science festival for everyone who has a sense of curiosity. Scientists from Leiden University will be making a major contribution. On 10 November, Leiden2022 presented the programme for the coming year, when Leiden will be European City of Science.

How can reciprocal learning of mentor and mentee about PCK (Pedagogical Content Knowledge) during the secondary school internship be established?

One-size-fits-all digital gamification sometimes hinders students’ learning due to the ignorance of individual differences. This project aims to explore how tailored digital gamification can be used in higher education and its effects on university students’ motivation and learning outcomes.

On December 11th, Andreea Geambasu succesfully defended her doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Andreea on this great result.

The Department of Child Law collaborated on a study on missing children in the European Union for the European Commission. The outcomes of the study aim to help to improve the mechanisms involved when children are missing in EU Member States.

This dissertation approaches collections of Andean mummies in European national and university museums as the focus to understand the relationship between objects, documents, and the practice of collecting in the period from 1850 to 1930. Over 200 mummies, kept by 18 different museums in Western European…

This handbook is aimed at a wide readership interested in developing an understanding of the political, economic, and social complexity of Eastern Europe. It covers Central Europe, the Baltic republics, South Eastern Europe, and the Western Balkans, as well as all the countries of the former Soviet…

How do chemical contaminants traverse and affect terrestrial biodiversity and ecosystems?

The project seeks to develop an eco-design framework for single-use medical devices and packaging

Work placement as a professional development programme for vocational teachers has been widely implemented. This dissertation provides insight into vocational teachers’ learning process in this programme within Chinese vocational education.

Impressions by Wouter Baas and Caroline Schep

The expansion of European powers overseas brought Europeans into contact and conflict with the inhabitants of Africa, Asia, and the Americas. Historians of colonialism and post-colonial scholars have long argued that this encounter was crucial for the formation of European identity, which originated…

More than 800 universities have called on the European Council to come to be more visionary in its ambitions for European research, innovation and education. They believe the current budget to be insufficient.

Learning analytics tracks students’ online learning activities in order to support their learning. But what if most of their learning takes place offline, out of sight of digital eyes?

How can groundbreaking research help Europe tackle the huge challenges it faces? At the launch of the Leiden Europe Hub, academics and policymakers discussed this in the heart of European democracy: the European Parliament.

Dr Madalina Busuioc has completed a study for the European Parliament titled

Collaboration within Europe is currently at a low ebb. This is threatening to undermine our freedom and the rights that are anchored in the European legal order, says Piet Hein Donner, Vice-President of the Council of State and Cleveringa professor at Leiden University for 2015. His lecture on 26 November…

On 25 March 2021 this online seminar will be held from 10.15-12.00 at Örebro Universitet in Sweden. Jannemieke Ouwerkerk, Professor of European Criminal law at the Institute of Criminal Law and Criminology at Leiden University, will be one of the speakers at this seminar. Information about registration…

On Tuesday 1 December, LLM European Law students Pien Offerhaus and Carina van Os won the Migration Case Note Contest 2020.

In design optimization problems, engineers typically handcraft design representations based on personal expertise, which leaves a fingerprint of the user experience in the optimization data. Thus, learning this notion of experience as transferrable design features has potential to improve the performance…

In this article, Wout Broekema, Wouter Jong, and Sara Perlstein explore the design and assessment of crisis inquiries from a learning perspective.

The League of European Research Universities (LERU) was launched in Leiden 20 years ago. This anniversary will be celebrated with a major conference (19 – 21 May) on an urgent theme: How does science contribute to sustainable and resilient societies? We put this question to Kurt Deketelaere, Secretary-General…

On 20 June 2025, Melanie Fink presented her research on ‘Robo Swarms and Polygraphs: The Future of European Border Management and its Human Costs’ at the Research Workshop on ‘Migration law at the intersection of international, EU and domestic law: institutional structures and the protection of human…

Why do innocent people sometimes spend years in prison? EUREX is a registry of miscarriages of justice in Europe that ultimately led to exonerations. The aim is to prevent such mistakes being made in future. One of the initiators is Leiden legal psychologist Linda Geven.

You can ask virtual assistant Siri about the weather, but you can’t have a real conversation with it yet. You can’t refer to anything that’s been said before, or ask the system why it says what it says. Stephan Raaijmakers, Professor by Special Appointment from TNO, hopes to change this.

The literature indicates that teacher professional development and learning may be improved by using formative assessment procedures. This thesis focuses on a specific form of formative assessment, negotiated assessment, which is characterised by the exchange of views between assessor and assessee and…

Human language is constantly evolving with its linguistic structure being shaped by language users at both individual and population levels. Focusing on the interplay between processes of language acquisition and communicative need in shaping human languages, this thesis introduces a novel computational…

On 12 September the students of the European Law Master gathered in the Lorentzzaal for the festive opening of their programme.

Biodiversity in the Netherlands is having a tough time. Professor of Natural Capital Koos Biesmeijer combines research with practical advice: from the greening of industrial parks to solutions inspired by hi-tech nature. Inaugural lecture 9 March.

Various Leiden researchers have been awarded a European grant to explore the commercial or societal potential of previous research.

On 30 January 2024, the Maastricht Centre for European Law, in collaboration with the Globalization and Law Network at Maastricht University Faculty of Law, hosted a seminar featuring Simona Demková from the Europa Institute of Leiden University.

What is students’ engagement in problem-based learning (PBL) and case-based learning (CBL) in teacher certification programs?

Almost a hundred students and researchers can study in Leiden or go from Leiden to another university abroad as part of an exchange programme. Fourteen exchange projects have been awarded a subsidy from the EU's Erasmus+ International Credit Mobility programme.

Since Russia’s invasion of Ukraine in February 2022, the European Union (EU) and its Member States have adopted wide-ranging legal and political measures to support Ukraine in its struggle.

If an algorithm has to learn to understand language, simply having a lot of data doesn’t help much. Like us, a computer has to learn the language in interaction with others. Tessa Verhoef is fascinated by how this interaction works.

Galikyan’s dissertation examines how the multidimensionality of learner­learner interaction data and the multifacetedness of learner-learner interaction itself impact the measurement of learner-learner interaction in digital learning environments.