This thesis examines the complexity of legislative decisions within the EU, with a specific focus on the Council of the EU.

Heterogeneous catalysis is one of the fundamental processes of modern life, being common in industrial refinery and hydrogen vehicles, all the way to the living cell. The dissociation of H2 on Cu(111) is an important benchmark system for studying heterogeneous catalysis, with a large and varied amount…

An interdisciplinary cultural analysis of how the Hindustani double migration informs contemporary processes of identification and problematises the juxtaposition of tradition and modernity.

The Faculty of Science is located at the Leiden Bio Science Park. It was founded more than two centuries ago and currently, more than 8000 people are working and studying at the eight institutes.

‘What I find most alluring about soil life is that you can steer it,’ researcher Martijn Bezemer of the Institute Biology Leiden (IBL) reveals. ‘You can ask: What do you want? And then I can transform the soil into something you need. At least, that is what we thought.’

Making an impact by creating solutions for the challenges of the future. That’s what we do through our education and research in biodiversity and sustainability, artificial intelligence, complex networks, new medicines, quantum technology, and galaxies.

The Faculty of Social and Behavioural Sciences brings together high-quality research and outstanding teaching in the disciplines of cultural anthropology, education and child studies, political science, psychology, science and technology studies, as well as in multidisciplinary approaches.

We are becoming ever more dependent on automation systems in our daily lives. Computer Science is more than programming; you integrate maths and logic into the development of systems and solutions that can be applied in all fields - from business to healthcare.

The Science Council is an advisory committee to the Board of the Institute and consists of the full professors of the Institute.

The Institute of Environmental Sciences (CML) at Leiden University is at the forefront of industrial ecology, environmental biology, and sustainability science.

At Leiden University’s Faculty of Social and Behavioural Sciences we keep in touch with our alumni in various ways.

Are you graduating at the Faculty of Science? Or are you supervising a PhD student? At the Graduate School of Science you find support at every phase of your PhD.

Business Studies spans science, medicine, and business, focusing on areas such as technology management, innovation, entrepreneurship, operations, and decision making.

This article provides a comprehensive analysis of the Islamic State's use of images taken by drones, drawing on a dataset of ISIS propaganda images from October 2016 to December 2018.

How can we track biodiversity loss at the speed and scale needed to protect our ecosystems? The eDNA Citizen Science project combines cutting-edge environmental DNA technology with citizen science to enable residents, community groups, and local organizations to monitor aquatic and terrestrial biodiversity…

From corpus pragmatics and metapragmatics to accountability and intentions, and from conversational structure and im/politeness to the role of emotions in utterance interpretation, the short articles collected here represent not just the wide scope of Michael's own work but also a snapshot of the field,…

Alumni event, Lezing

This open access book brings together an eclectic cast of scholars in related disciplines to examine ageing in the Soviet Union, covering the practice of geriatrics, the science of gerontology, and the experience of growing old. Chapters in the book focus on concepts and themes that analyse Soviet ageing…

This comparative study investigates court politics in four kingdoms that succeeded the south Indian Vijayanagara empire during the sixteenth to eighteenth centuries: Ikkeri, Tanjavur, Madurai, and Ramnad. Building on a unique combination of unexplored Indian texts and Dutch archival records, this research…

This year Leiden University exists for 444 years! This will be celebrated together with the residents of Leiden and The Hague during various activities. One of these is scientists and residents doing research on plastics and psychology together.

From black holes to artificial intelligence and from drug research to data science: welcome to the fascinating world of the Faculty of Science. Our researchers, students and guests regularly give public lectures about their work. You are welcome to attend.

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.

The Biomedical Sciences Health specialisation aims to provide you with a theoretical background and academic competences in multidisciplinary research in Biomedical Sciences and in clinical practice in Medicine. Since the programme is partly taught in English and partly in Dutch, fluency in Dutch is…

Scientific research is the main focus of our program. We expect new students to understand what it is and how it works.

The project investigates the implementation of policies and practices related to reconciliation and the strengthening of government capacity in the Odesa and Kharkiv regions of Ukraine.

From publishing students, to addressing bottlenecks in education logistics and a completely new bachelor’s programme. Scroll through our highlights on educational innovation and achievements of our outstanding students.

In the Biomedical Sciences Education specialisation you gain knowledge and skills in the area of teaching in biology. The education specialisation is for students who want to work as a first-grade teacher Biology at secondary education or for those who want to specialize in education in general. Since…

The Leiden Computational Network Science Lab (CNS Lab) researches methods for knowledge discovery from real-world network data.

Met de bachelorspecialisatie Informatica & Economie aan de Universiteit Leiden leer je waardevolle inzichten in de economie te combineren met (programmeer)vaardigheden en kennis uit de informatica.

The Leiden Science Run is a 5 km charity run at the Bio Science Park Leiden. It is a relay race organized by Leiden University in collaboration with the University Sports Centre.

The We Are Science Week, inspiring lectures, and enjoyable gatherings. This year, we frequently came together to inspire and connect with one another. Our biggest event took place at the start of the academic year in September: the official opening of our new Gorlaeus building.

Promotores: P. Stevenhagen, E. Fouvry (Univeriste Paris Saclay)

Promotor: Prof.dr. P. Stevenhagen & Prof.dr. K. Belabas (Univ. de Bordeaux)

The Encyclopedia of Global Human Migration provides a complete exploration of the prominent themes, events, and theoretical underpinnings of the movements of human populations from prehistory to the present day.

In this thesis,

To an algebraic curve C over the complex numbers one can associate a non-negative integer g, the genus, as a measure of its complexity.

Assistant Professor Briitta van Staalduinen has received the Best Dissertation Award from the American Political Science Association, Section on Class and Inequality. Her dissertation, Ethnic Inequality in the Welfare State, aims to reconcile the persistence of ethnic inequalities in expansive welfare…

Quantum Information Science & Technology is a new joint degree master programme by Leiden University and TU Delft. Below you can find a video of the campus of the Science Faculty of Leiden University where a part of the lectures will take place. A video about the programme's content and structure…

Health research, medical practice and consequently the whole population is increasingly affected by digitization, data science and AI.

Historiography of science is in its current self-image a non-evaluative discipline. Its main goal is to understand past processes of knowledge formation on their own terms. In the last few decades this approach has greatly improved our understanding of the phenomenon of science. Yet, something strange…