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.

You have ample opportunity to assemble your own study path in Cosmology. The courses cover the full spectrum from theoretical early universe to observational cosmology.

NESA offers a one-year teaching and training programme especially for upcoming and all first year PhD candidates, consisting of 5 masterclasses on current and trending theoretical debates in our discipline, an extensive methodology training and occasionally a cohort meeting off campus.

The ultimate aim of the project is to find out whether there are such things as

The Explainatory Data Analysis group develops algorithms and theory that enable domain experts to explain data by finding interpretable patterns and models.

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.

This work provides a typologically oriented description of clause linkage strategies in Ket, a highly endangered language spoken in Central Siberia. It is now the only surviving member of the Yeniseian language family with the last remaining speakers residing in the north of Russia’s Krasnoyarsk pro…

The research project of Yannis Patoukas proposes to explore the different intersections between experimental rock music of the 1960s and 1970s and electroacoustic music, with regard to studio practices and production techniques and their creative possibilities.

A selection of recent publications from the Plant BioDynamics Laboratory.

In the era of big data, extracting insights from complex datasets is a key challenge. This thesis demonstrates the superiority of graph-based methods over traditional clustering (e.g., k-means, DBSCAN) and outlier detection for analyzing high-dimensional and noisy data.

Morphology is the grammar of words. Morphologists study how words are built and what principles govern their form and their function.

It is difficult to deny the value and importance of human rights, and yet their application in the context of climate change is increasingly contested. While some argue that it is difficult to establish the violation of human rights by climate change processes, others contend that human rights are anthropocentric,…

Violence during war often involves upswings and downturns that have, to date, been insufficiently explained. Why does violence at a particular point in time increase in intensity and why do actors in war decrease the level of violence at other points? Duyvesteyn discusses the potential explanatory variables…

This inaugural lecture discusses the question: How to cooperate in the digital era?

Diplomatic Studies is a series with monographs and edited books, including contemporary, historical and future-oriented academic work. The series is receptive to a wide array of methodologies.

A project on phonology, phonetics, and the space between them.

The arrival of Columbus to the Caribbean in 1492 marked a milestone in world history. In both the European and the indigenous world, a set of economic, political and hierarchical networks and relations were defined, structured and changed. These changes affected the indigenous population at different…

The main focus of this thesis is the behaviour of two-dimensional materials, namely (anti)-ferromagnetic materials in the first two chapters, which show topological phases, and energetic square ice in the third and fourth chapter.

How to explain the apparent high success rates of the EU infringement procedures, which are the major tools for enforcing EU law, against the member states?

The Sun and all the stars in the night sky reside in the Milky Way galaxy. In the at-rest reference frame of the Galaxy, typical stars travel with velocities of about 100-200 kilometres per second.

This volume provides a sample of the most recent studies on Spanish-English codeswitching both in the Caribbean and among bilinguals in the United States.

The Hague Journal of Diplomacy (HJD) is the world’s leading research journal for the study of diplomacy and was founded in 2005.

Anchoring Cultural Formation in the First Millennium BCE

The Death of Archaeological Theory, edited by John Bintliff and Mark Pearce, addresses the provocative subject of whether it is time to discount the burden of somewhat dogmatic theory and ideology that has built up over the last 25 years.

Nature and History, Towards a Hermeneutic Philospohy of Historiography of Science

On 14 May 2020, Pieter Rustenburg defended his thesis 'Een algemene normtheorie toegepast op open normen in het belastingrecht'. The doctoral research was supervised by Prof. A.O. Lubbers and Prof. J.L.M. Gribnau.

Beyond Empires explores the complexity of empire building from the point of view of self-organized networks, rather than from the point of view of the central state.

Thermodynamics is one of the founding scientific pillars that has helped us better understand heat engines, biology, ecosystems, and even black holes. While it fundamentally describes large systems by examining the bulk behavior of their constituents, it is anchored in the statistical equivalence of…

An in-depth history of Large Language Models—and what their ubiquity, disruption, and creativity mean from a wider sociopolitical perspective.

Studies in Early Near Eastern Production, Subsistence, and Environment, vol.16. Edited by Noriyuki Shirai.

Harm reduction in practice: a comparative analysis of the Dutch and Brazilian approach towards drug users.

United States and Chinese foreign assistance and diplomacy addresses the analytic weaknesses of mainstream analysis of foreign aid, which often focuses on its material dimensions. The book underscores the constitutive relationship between foreign aid as a material resource and the diplomatic discourses…

Leiden University Centre for Linguistics (LUCL) is a reputable institute in the field of linguistics, offering excellent research and education opportunities covering a broad range of languages of the world.

Sociopragmatics is a rapidly growing field and this is the first ever handbook dedicated to this exciting area of study.

The Applied Mathematics specialisation is the excellent preparation to start a career in research. It is a suitable stepping stone for pursuing a PhD degree. The degree also provides job opportunities outside academia in a (international) industrial environment.

The SCS courses train you in practical and theoretical aspects of science communication. Internships help you decide whether you want to choose a career in science communication or Mathematics research or a combination.

The one-year Master’s in International Relations offers an exciting and challenging mix of theoretical knowledge and practical experience.

The focus of Jan Zaanen's theoretical physics research was the nature of macroscopic matter that is in one or the other way still in the grip of quantum physics.

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?

The Biodiversity and Sustainability consists of 120 European Credit Transfer System (EC) points and includes a theoretical part (30-60 EC) and and one or more research projects (60-90 EC).

The infinite is endlessly fascinating. As finite beings, we will never be able to fully grasp the infinite. Yet the topic keeps resurfacing in philosophy – apparently, we cannot escape it either. Philosopher Victor Gijsbers guides the reader through the most important questions about the infinite in…

We report new computational and experimental evidence of an efficient and astrochemically relevant formation route to formaldehyde (H2CO). This simplest carbonylic compound is central to the formation of complex organics in cold interstellar clouds and is generally regarded to be formed by the hydrogenation…

The SCS courses train you in practical and theoretical aspects of science communications. Internships help you decide whether you want to choose a career in science communication or BPS research.

The subject areas covered encompass functional genomics, signal transduction, cellular differentiation, development, host-microbe interactions and animal behaviour.

The financial system needs complexity theory to predict economic crises like the 2008 meltdown. An international team of scientists, including Leiden physicist Diego Garlaschelli, state this in a paper published in Science on February 19th.

The map application includes information from old and new buildings archaeological projects. This makes it possible to investigate whether water facilities (wells, cisterns) and waste facilities (cesspits, sewers) were the privilege of Leiden’s wealthy elite in the late 16th and 17th centuries or whether…

In 2025 hebben medewerkers en studenten van de Universiteit Leiden veel mooie prijzen ontvangen en belangrijke onderzoekssubsidies binnengehaald.

This Spring we relaunched our free online course The Importance and Power of Music in our Society.