Dark matter is one of the biggest mysteries of the Universe. Its properties cannot be explained with the known laws of physics and elementary particles.

Wil je een volledige academische opleiding? Dan ga je na je bachelor door met een masteropleiding. Met een masterdiploma op zak heb je meer kans op een baan op academisch niveau. Na afronding krijg je de titel Master of Arts (MA).

Promotor: R. Verpoorte, Co-promotores: Y.H.Choi, N.R. Mustafa

The chemical and structural heterogeneity of toxoid vaccines makes their analysis challenging. However, detailed insights on a molecular level can be obtained by mass spectrometry.

Promotores: Prof.dr. G. Miley & Prof.dr. J.M. van den Broek

This research delves into the unique cultural approach of the Tenggerese people, an Indigenous community in East Java, Indonesia, regarding elderly care. It focuses on their traditional practices of bakti (‘filial piety’) and sayan (‘mutual aid’), deeply ingrained in the community's lifestyle and va…

The aim of the research presented in this thesis was to develop new methods forchallenging systems in liquid-state NMR using paramagnetic effects generated by thetwo-armed probe CLaNP-5.

Marine sponges are important members of reef ecosystems, as they play ecological roles that are essential for the health of the reef.

Promotor: J. van der Greef, T. Hankemeier; Co-promotor: H.A. van Wietmarschen

Promotor: Prof.dr. E. F. van Dishoeck

This thesis focuses on using liposomes in two different treatment strategies; vaccination (or immunotherapy) and delivery of a small molecule, and in two different disease models; cancer and atherosclerosis.

This thesis addresses the challenge of sustainable urban development by analyzing the interplay between green and grey infrastructure to optimize resource use and ecosystem services.

De prehistorie van communicatiemetaforen

An interdisciplinary collection of the best international scholarship on Muslim youth.

Plants produce an astonishing variety of secondary metabolites (SMs) which are thought to play vital roles in the fitness of plants through ecological interactions.

Jonathan Todres appointed as Rotating Honorary Chair in Enforcement of Children’s Rights 2024/2025

Sterrewacht Leiden is het sterrenkundig instituut van de Faculteit der Wiskunde en Natuurwetenschappen van de Universiteit Leiden.

Debat, Paneldiscussie met publiek

Promotie

Congres/symposium, Workshop

Speculaties over buitenaards leven, een nieuwe stikstofkaart, AI als scriptiebegeleider, baanbrekende telescopen en miljoeneninvesteringen tegen antibioticaresistentie – de veelzijdigheid van deze onderwerpen laat zien dat ons publiek net zo brede interesses heeft als onze wetenschappers. Ontdek hier…

How should jurisdictions, both on the national and on the supra-national level, handle the interaction between public and private law where it regards the regulation of financial markets?

Onderwijsonderzoek

Tijdens de jaarlijkse diploma-uitreiking werden niet alleen de bachelorstudenten Politicologie in het zonnetje gezet, maar ook de studenten met een uitzonderlijke scriptie. De scriptieprijzen belonen werken die uitblinken in originaliteit, maatschappelijke relevantie en wetenschappelijke kwaliteit.…

Last week, the sad news reached us that Dr Jan Schmidt passed away on 11 August 2025. We wish his partner, friends and family strength and comfort as they cope with this loss. Jan Schmidt will be remembered as one of the most prolific and learned scholars in the field of Ottoman codicology and histo…

To get an idea of the science communication products and research that is possible, a few examples of student projects of recent years are shown below.

Climate change is a challenge for both current and future generations. New biological resources have to be developed in order to meet the demand for energy as well as the demand for food.

This dissertation presents a new perspective on the life, work and character of the Dutch physical chemist Jacobus Henricus van ’t Hoff, first recipient of the Nobel Prize in Chemistry, and one of the most important and colourful scientists in Dutch history. The image of Van ’t Hoff that emerges from…

Religious Studies at Leiden University allows you to study a broad spectrum of religions and their manifestations.

Promotores: G.A. Persoon, H.H. de Iongh

The mission of our group is understanding how science communication works to improve the interaction between science and society. We believe better science communication can improve our society and engage many different groups with science, also improving science.

Microglia support the central and peripheral nervous system by forming the first line of defense against hazardous events. Microglia are increasingly acknowledged as critical players in neurodegenerative diseases, highlighting them as potential therapeutic targets.

Promotores: Prof.dr. F. van Lunteren, Prof.dr. F.S. Gaastra

De onderzoeksgroep Intelligence and Security houdt zich bezig met inlichtingen en veiligheid binnen de Europese Unie. De aanpak is interdisciplinair en weerspiegelt de brede benadering van het ISGA. Inzichten uit onder meer ethiek, geschiedenis, recht, politicologie, psychologie en sociologie worden…

Op 12 januari 2022 verdedigde Mirjam Franke het proefschrift 'Over de grens van de onrechtmatige daad'. Het promotieonderzoek is begeleid door prof.mr. A.G. Castermans en prof.mr. J.H. Crijns.

Leiden University College The Hague (LUC) biedt een 3-jarige bacheloropleiding aan waarin je je focust op Global Challenges; grote uitdagingen waar de mensheid mee te maken heeft: Vrede & Rechtvaardigheid, Diversiteit, Duurzaamheid en Welvaart. Je hebt ruimte om de opleiding zo in te richten als je…

This dissertation explores how we can make anomaly detection—identifying unusual or faulty behavior in complex systems—more trustworthy and effective, with a focus on smart manufacturing.

Online cursus The Importance and Power of Music in our Society

The soil ecosystem consists of the largest reservoir of biodiversity on Earth.

In this work, we investigate the minute circular dichroism effects of single nanoparticles.To this aim, we apply photothermal imaging with a polarization-modulated heating beam.

Leiden University College The Hague (LUC) biedt een 3-jarige bacheloropleiding aan waarin je je focust op Global Challenges; grote uitdagingen waar de mensheid mee te maken heeft: Vrede & Rechtvaardigheid, Diversiteit, Duurzaamheid en Welvaart. Je hebt ruimte om de opleiding zo in te richten als je…