The aims of the project are to: further clarify 'inhibition by safety'; explore and describe all possible sagety factors, with a special focus on the primary human safety source: social connectedness; reviewing prolonged stress responses without stressors.

In the master's specialisation Global Ethnography, will follow several courses that aim to make your research project as successful as possible. From writing an academic research proposal to the complex task of writing up data once you return from the field. Each student also receives individual supervision…

Combine training in Mathematics research with different aspects of business studies. Learn to build bridges between science and business.

Learn about current approaches and ethical issues in heritage management and experience some of these in daily practice.

Top scientists of three Dutch universities are working on software and systems for quantum computers. Researchers of the Leiden Institute of Advanced Computer Science (LIACS) and the Leiden Institute of Physics (LION) are developing new algorithms to make those super computers work. The coming years,…

The research programme Formal Theoretical and Experimental Linguistics brings together LUCL researchers who focus mainly on formal theoretical and experimental linguistics.

In the Algebra, Geometry and Number Theory specialisation you dive deep into pure mathematics. You explore both the fundamentals and how mathematics is applied in other sciences, society and industry. As a master’s student you join a multidisciplinary research team at the Mathematical Institute and…

The Social and Economic Psychology specialisation offers in-depth knowledge of a broad range of theories and research domains in this area, all concerning the way people’s social environment influences thoughts, feelings, and behaviour.

In this thesis three different topics in number theory are studied.

The research of our group is centered around dynamical systems, functional analysis and their interplay.

Why obey the state? Dorota Mokrosińska presents a fresh analysis of the most influential theories of political obligation and develops a novel approach to this foundational problem of political philosophy, an intriguing combination of the elements of natural duty and associative theories.

The MSc in Psychology (research) is a two-year programme that is focused on acquiring research skills in a particular field of psychology.

The research specialisation offers you the opportunity to spend two full years on training in applied mathematics to become an independent scientist with a strong theoretical basis.

This book brings together phonologists working in different areas to explore key questions relating to phonological primitives, the basic building blocks that are at the heart of phonological structure and over which phonological computations are carried out.

Why are people sometimes unable to change, even if they want to? Why is it so difficult to change political institutions, or to abandon outdated ways of thinking? This book suggests that we can understand the phenomenon of resistance to change in individuals and institutions by returning to Hegel, one…

Because thin systems can deform along the thickness with relative ease, the interplay between surface mechanics and geometry plays a fundamental role in sculpting their three-dimensional shape.

Promotor: H.W. Lenstra

Promotor: Huub de Groot, Co-promotor: Francesco Buda

Lecture

The research groups within the biological, soft and complex systems research area study the physics of a broad range of biological and soft materials. This spans both experimental and theoretical research.

Promotors: Prof.dr. J. Zaanen, Prof.dr.ir. H. Hilgenkamp

The corona crisis is also a disinformation crisis for the global community in general, and for the European Union (EU) in particular. What is less clear is how adequate the EU’s response to the ‘infodemic’ has been. This essay exposes the dangers of disinformation for the EU, which have intensified…

Connect theory and practice of teaching through the application of your academic knowledge about Biology to issues of classroom practice.

The Algebra, Geometry and Number Theory specialisation offers excellent preparation for a career in research and is a strong foundation for pursuing a PhD. At the same time, the skills you develop open doors to diverse career opportunities outside academia.

Describing a new language for the first time is an exciting and challenging intellectual experience.

Review the admission requirements for the MSc Democracy and Representation at Leiden University: required bachelor degree, number of credits, and possible language or portfolio proof.

The specialisation enables you to understand the fundamentals of management and entrepreneurship alongside high quality Biology research.

Festival

The making of sacrifices seems part and parcel of any elite sportsperson’s life. Remarkably, the insights that we find in the current literature in social sport studies are not able to make sense of the references to sacrifice in the data that emerged in the context of this study on the social significance…

Learn how to conduct policy-oriented research, join one of our field schools and gain relevant working experience.

Miriam Cohen defended her PhD dissertation entitled “Reparations for International Crimes and the development of a Civil Dimension of International Criminal Justice” on 28 June 2017. She wrote her thesis under the supervision of Professor L.J. van den Herik and Professor C. Stahn.

Very generally speaking, this study aims at questioning and re-defining the mind-body epistemic problem within contemporary dance and art culture.

This project studies the theory and practice of moral education in the (Neo)Platonic tradition.

Stam defended his dissertation ‘Freedom of speech and the suppression of discrimination in the Netherlands: a constitutional-developmental approach’ on 12 November 2025. The doctoral research was supervised by Afshan Ellian and Bastiaan Rijpkema

Categories of gender and sexuality are the subject of heated debates in our everyday lives. To understand how systems of gender and sexuality operate, and why these are such contested areas we need to study these categories came about historically.

The curriculum of this bachelor’s programme gives you an understanding of artificial intelligence and data science with a solid basis in computer science. Both artificial intelligence and data science are broad disciplines that require essential and foundational underpinnings.

The research of the Mathematical Institute is driven by the curiosity of its members and has many internal and external connections. It can be characterised as fundamental but with an open attitude towards applications.

The two-year programme is a challenging combination of general advanced courses, practical modules such as teaching assistance and conferences/workshops, a personal course profile, and research.

Within the Mathematical Institute, the Algebra, Geometry and Number Theory research group organises a seminar.

An important goal of the ICLON programme is to build bridges between practice and theory.