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.

In the summer of 2011, from June 14th until August 5th, the Laboratory for Human Osteoarchaeology conducted an excavation on the former cemetery of Middenbeemster in cooperation with archaeological company Hollandia. The cemetery, which is located next to the church of Middenbeemster can be dated between…

Management of Impacts on Biodiversity: What are the effects of light pollution from cities and bridges and noise pollution from passing vessels and nearby road traffic on migratory fish passage and spawning in rivers?

This project intends to provide an integrated linguistic assessment of the hypothesised migration route of the Tocharians.

National Meat Free Week (Nationale Week Zonder Vlees, 7–13 March) is an initiative to reduce meat consumption. Assistant professor Paul Behrens is studying what impact a change in our food consumption would have on the world. What, according to him, are the main reasons to switch to a (mainly) plant-based…

Arnold Tukker and Mingming Hu (CML) will look for urban resilience solutions in the Dutch-Chinese ReSURE2 project that received 1.1M euro.

Why does social anxiety increase in adolescence and how does it grow out of control in some adolescents?

Our team is involved in the translation and adaptation of several questionnaires, for research purposes. Information about each questionnaire is listed below.

Leiden alumni find work in all kinds of interesting places. We gather the stories of our alumni and publish then regularly in our alumni newsletter and in Leidraad magazine. You can find all their stories on this page. They give a good impression of what life is like for Leiden alumni after they have…

The walking club is a ProParte sub-group.

This project tries to explain the persistence of this cultural repertoire by zooming in on (1) interaction between idioms (cultural repertoires) available to scholars at certain points in time, (2) mechanisms that help transmit repertoires across time and place, and (3) rhetorical purposes for which…

The central theme of the NWO-project ‘The Promise of Organization’ is the evolution of political organization during the 19th century. We focus on the enthusiasm, arguments and concrete activities of the organizers as well as the criticism offered by opponents of modern political organization.

The LED3 hub, consisting of researchers from the Leiden Institute of Chemistry (LIC), the Institute of Biology Leiden (IBL), the Leiden Academic Centre for Drug Research (LACDR) and the Leiden Institute of Advanced Computer Science (LIACS), is very excited to organize the “LED3 Lectures”. This lecture…

Algae are not what immediately spring to mind when people think of threatened species. But even among algae there are species that have a difficult time, such as ‘Aegagropila linnaei’. In the magazine BioScience Christian Bödeker describes the worldwide decline of this species. He calls for the species…

What is the optimal design of sandy solutions for sustainable climate change adaption, from an ecological, biophysical and societal point of view?

Integrins play an essential role in multicellular life by connecting cells to the extracellular matrix.

Pathways of toxicity

Analysis of drug adversity

The Advisory Board is an external Advisory Council, to advice the Board of Directors of CML about general strategies, research and education activities and evaluation procedures (Dutch: visitatie).

Lets hit the water! Our students joined us on Saturday 30 August 2025 for a Stand Up Paddleboarding (SUP) and canal clean-up session on Leiden’s canals with Plastic Soup Surfer Merijn Tinga.

How and under what conditions Dutch primary school principals' managerial networking activities affect the performance of their school

A team of students from Leiden University, TU Delft and Rotterdam University won a golden medal during the International Genetically Engineered Machine competition (iGEM) in November in Boston. Their project ELECTRACE concerned a bacterium that can be used to search for landmines.

The effects of sustainability projects on poorer, marginalised people should be considered at a much earlier stage. This is the opinion of Marja Spierenburg, Professor of Anthropology of Sustainable Development and Livelihood, who will give her inaugural lecture on 25 February.

The Elephant Marsh is one of the biggest wetlands in Malawi and many of the country’s inhabitants rely on it for their small-scale fishing catch. To make their small fisheries sustainable and future-proof, the government has to support the fishing community and not impose too many regulations. This…

The habitats of freshwater fish species are threatened by global warming, mainly due to rising water temperatures. This is the conclusion of a study led by Radboud University, in collaboration with Utrecht University, PBL Netherlands Environmental Assessment Agency, Leiden University and others. The…

The main research theme in the group of Dennis Hetterscheid is to understand and mimic bioinorganic multi-electron processes that are relevant to our future energy infrastructure. Reduction of protons generates hydrogen that can be used as a chemical fuel. Alternatively to gaseous hydrogen, the reduction…

Excerpta archaeologica leidensia: Corrie Bakels & Hans Kamermans (eds) (2015)

On the 30th of September Christine Ketel successfully defended a doctoral thesis and graduated.

Do you have questions about the International Bachelor in Psychology? Please contact us.

Do you have questions about the Astronomy master’s programme? Please contact us.

This book explores the intellectual history of the Dutch empire from the sixteenth century to the postcolonial era, going beyond systemic thinkers to understand how empire was perceived in day-to-day life. It takes a transnational and transimperial approach to the Dutch empire, connecting European,…

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

Can we develop a generic method for Quan/Qual analysis of small molecule drugs, their metabolites and endogenous metabolites in (pre-)clinical samples?

The goal of target discovery is to identify and validate proteins and biological pathways that are involved in the disease process. Modulating these target proteins and pathways with small molecules, therapeutic proteins or other biomolecules (e.g. mRNA) could deliver an effective and safe drug or v…

A key challenge in neuroscience is understanding how neurons in hundreds of interconnected brain regions integrate sensory inputs with previous expectations to initiate movements and make decisions.

The Multistakeholder Global Governance (MGG) Project is a four-year project which explores how far, and under what circumstances, multistakeholder constructions of global governance operate well, in terms of having capacity, effectiveness, and legitimacy.

This book analyses the emergence of modern parties in nineteenth-century Europe and explores their connection with the slowly developing institution of democracy.

Developmental and Educational psychology is concerned with the developmental course and dynamics of cognition, self-regulation, and emotional competence, and the implications for educational and clinical practice.

We investigate the physics and design of mechanical metamaterial, intricately sculpted materials with properties set by their architecture.

A Diachronic Perspective on the Aegean

Programs that aim to reduce symptoms of social anxiety in children generally include multiple components, such as exposure and cognitive restructuring. It is unknown if separate components yield positive intervention effects in children or whether a combination of components is required.

Up to 50% of all children and adolescents growing up worldwide are exposed to at least one form of childhood adversity (CA), which is one of the strongest predictors for later-life psychopathology.

Speech Prosody 2024 will hold an industry panel on Prosody in Tech.

Do you have questions about the master’s specialisation Bio-Pharmaceutical Sciences and Science Communication and Society? Please contact us.

The specialisation Science Communication and Society (SCS) concerns science communication in a broad sense. The program focuses on the link between science and society and covers knowledge and skills in the field of science communication.

How did African actors engage with the idea of Eurafrica?

Cognitive processes of learning with a focus on reading comprehension and the development of mathematical skills.