In this article, Ben de Jong, research fellow at the Institute of Security and Global Affairs, examines the relationship between double agents and their handlers.

The Leiden Leadership Programme (LLP) is an interdisciplinary honours programme for master’s students. It is organised by Leiden University's Honours Academy and Leiden Leadership Centre.

Een nieuw boek in de reeks Elementaire deeltjes

Kartika Setyawati defended her thesis on 12 November 2015

Anthropology of Law in Muslim Sudan analyses the hybridity of law systems and the plurality of legal practices in rural and urban contexts of contemporary Sudan, shedding light on the complex relation between Islam and society.

Jochem van den Boogert defended his thesis on 18 November 2015

In our culture, vocal harmonics function as independent musical elements since only a few decades. Thresholds of the audible explores the changing relationship between singers, listeners and harmonics.

This thesis investigated the extent to which participation of school students in decision-making processes can be achieved, including through participatory action research (PAR) in teacher education.

In 'Dutch Atlantic Connections, 1680-1800', Gert Oostindie and Jessica V. Roitman, both of the Royal Netherlands Institute of Southeast Asian and Caribbean Studies (KITLV) and also affiliated with the History Institute of Leiden University, assemble an internationally acclaimed selection of authors,…

All crested and marbled newts (the genus Triturus) suffer from an unusual genetic abnormality, called a balanced lethal system, that kills exactly half of their offspring. How can a trait so disadvantageous have survived millions of years of natural selection?

Once a month, the Europa Institute comes together to hear from its own staff members, guest researchers, or external scholars about their research plans, work in progress papers, or recently concluded projects relevant to European law. The Food for Thought-series is organised by Melanie Fink.

On Thursday 10 April 2025 Wahyu Widodo successfully defended a doctoral thesis and graduated.

The Common Market Law Review has an internationally composed Editorial Board and Advisory Board.

Why do we give students fictional assignments when there is a multitude of real-world problems just waiting to be solved? Leiden University, Leiden University of Applied Sciences and the Municipality of Leiden are joining forces with partners from the public sector in the Learning with the City project,…

What are the characteristics of impactful education for student application of inclusive design principles in design and technology programs?

Assessing Learning in Higher Education addresses what is probably the most time-consuming part of the work of staff in higher education, and something to the complexity of which many of the recent developments in higher education have added. Getting assessment ‘right’– that is, designing and implementing…

The Astronomy & Society group of Leiden Observatory takes a new turn in science: they have decided to share their rejected research proposals with the scientific community. ‘We put a lot of effort into them, and now hopefully others can benefit from our work. Maybe it even results in new collaborations,’…

As of November 1st, Peter Grünwald has been appointed professor Statistical learning on a new chair hosted by both the Mathematical Institute and the Leiden Institute for Advanced Computer Science (LIACS).

What languages do you speak? According to Felienne Hermans, ‘Python’ could be an answer to this question. Hermans studies how people learn to program at the Leiden Institute of Advanced Computer Science (LIACS) of Leiden University. In an article of the NewScientist she explains why programming is similar…

The current dissertation presents a review study and three empirical studies, focusing on the understanding of the state of the art of research about PjBL in higher education and the investigation of the relation between PjBL and student outcomes in the context of Chinese higher education.

Students at Leiden University College (LUC) learn about biodiversity not only in the lecture hall, but also in the natural environment. University lecturer Thijs Bosker and student Sebastiaan Grosscurt talk about using camera traps in a teaching and research project.

The easy-to-learn programming language Hedy has been used more than 100,000 times in no more than 9 months. Felienne Hermans was a guest in the broadcast of the radio program Science071 to tell more about it.

In this project we study the properties of statistical- and rule-learning mechanisms in relation to the acquisition and evolution of language. We ask to what extent these mechanisms are unique to humans - or to human language - by comparing the acquisition of vocal structure in two species: humans (infants)…

It is a common technique in global optimization with expensive black-box functions to learn a surrogate-model of the response function from past evaluations and use it to decide on the location of future evaluations.

The Academy for Professionals project started in November. The project will focus on further developing existing and new educational programmes for professionals. ‘This is part of taking valorisation seriously.’

She has held office for over a hundred days, and is enthusiastic about what she has seen of the University thus far. Bursting with energy, she has plans aplenty for the teaching. An interview with ‘new’ Vice-Rector Magnificus of Leiden University, Hester Bijl.

Radiography is an important technique to inspect objects, with applications in airports and hospitals. X-ray imaging is also essential in industry, for instance in food safety checks for the presence of foreign objects.

Chinese and Leiden scientists came together in Leiden to study the intricacies of modern visual techniques.

The European Registry of Exonerations database provides an overview of miscarriages of justice in Europe with a view to preventing future errors.

Somatic symptoms, such as pain, itch, and fatigue have been shown to have a bidirectional relationship with mental symptoms. Although acute somatic symptoms serve some adaptive properties, chronic symptoms can instead lead to interference in daily activities and lower quality of life.

In this thesis, we aim to shed light on the diverse and often opposing roles of integrin α3β1 in cancer.

In this article Wouter Jong and Andrea Bartolucci explore the integration of scenario-based learning (SBL) into a crisis communication course to enhance students' practical skills and reflection in real-world contexts.

This book is the first comparative study of estimative intelligence and strategic surprise in a European context, complementing and testing insights from previous studies centred on the United States. It does extensive empirical analysis of open-source material and interviews in relation to three cases…

This article reflects on the lessons of COVID-19 five years on. The crisis exposed deep vulnerabilities in health systems, governance, and social cohesion.

This dissertation aims to establish a dialogue between ethnomusicology (more specifically indigenous organology), the anthropology of art and the culture of the Apinaye peoples, in order to understand how the musical objects of these peoples are learned and taught, and thus to understand its musical…

Drawing is one of the most unique human behaviours. Like language, drawing is a mode of communication and a cognitive tool that from an early age allows us to interact with others. Is the early development of drawing skill influenced by the social environment? If so, how?

This thesis addresses questions on effectively using variational quantum circuits for machine learning tasks.

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How are night spaces imagined, produced, experienced and narrated by migrant communities in Europe? This research project considers this question in eight European cities: Aarhus, Amsterdam, Berlin, Cork, Galway, Lisbon, London, Rotterdam. Authorities have historically wrestled with the issue of night-time…