With a full auditorium at the university's Wijnhaven campus, an extensive programme, inspiring speakers and visitors from a wide range of disciplines, all the ingredients were in place for a successful second edition of the Nacht van de Digitale Veiligheid of Digital Security on 26 May 2026.

What types of construction materials are used in the Global South, where are they, and what levels of societal services do they support? How will material use evolve under different development pathways and paradigms? What are these materials' environmental and societal impacts now and in the future,…

The Iseum Campense, the impressive sanctuary for Isis and the Egyptian gods on the Campus Martius and arguably one of ancient Rome’s most notable absent presences, is a monument central to various debates.

This book concerns cultural production in contemporary Latin American cities: chaotic cities where the ideal of order has become fragmented and the walls of the lettered city have become porous. New and multifarious urban trajectories—intersecting, colliding, superimposing—trace the image of the postmodern…

This book reveals how one publishing firm's editorial strategy helped to legitimate European colonialism in the early modern era.

Op donderdagmiddag 15 mei 2025 organiseert Universitaire Bibliotheken Leiden het symposium ‘De Middeleeuwen als inspiratiebron’. Aanleiding voor dit symposium is de publicatie van het rijk geïllustreerde publieksboek 'Schatten op schrift, 50 manuscripten uit middeleeuws Europa'.

Op 2 oktober 2023 zullen meerdere nieuwe delen in de reeks Middeleeuwse Verzamelhandschriften uit de Nederlanden worden gepresenteerd, ditmaal uitsluitend in digitale vorm.

Archaeologist Jason Laffoon was awarded an NWO Vidi grant for an innovative investigation into ancient migrations in the western Caribbean. The innovative character of this research project lies in the wide-scale application of isotope analysis and isotope mapping. ‘We aim at further developing methods…

Cette étude montre que le développement phonético-phonologique en fulfulde et bambara est à la foiscomparable au développement langagier dans d’autres langues du monde et influencé par les caractéristiques phonétiques et phonologiques de ces deux langues notamment au niveau de la phonotaxe.

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 dissertation focuses on developing new mathematical and statistical methods to properly represent time-varying covariates and model them within the context of time-to-event analysis.

‘Vrijwel elke kritische reflectie op AI en de richting waarin AI zich op dit moment ontwikkelt, ontbreekt’, zegt Reijer Passchier, hoogleraar digitalisering en de democratische rechtsstaat aan de OU en universitair docent staatsrecht in Leiden, in een opiniestuk in de Volkskrant.

Networks play an important role in various studies, ranging from analysing epidemics in human populations to studying connectivity in electrical circuits. Vincent Traag contributes to the development of igraph, a popular package for analysing large networks.

Op donderdag 17 april 2025 neemt prof. dr. Marco Mostert, Hoogleraar Middeleeuwse Geschiedenis aan de Universiteit Utrecht afscheid.

Hans de Iongh, associate professor at the Institute of Environmental Sciences (CML), was named 'Officier in de Orde van Oranje Nassau' on Thursday 27 October. His work on the prevention of lion extinction in Africa was one of the reasons for this award.

PhD defence

Het boekproject "Wereldsteden. Stadsgeschiedenis van de Lage Landen" verwelkomt bijdragen van onderzoekers die zich bezighouden met stadsgeschiedenis van de oudheid tot nu. Meer informatie kunt u vinden in de bijgevoegde call. Deadline voor aanmeldingen: 10 maart 2024.

igraph, an important open source network analysis library, will receive two grants of $400,000 (approximately €340,000) over the course of the next two years.

Het bredere thema van de bijeenkomst (7 december, 16:00-18:00, online), geleid door Janna Coomans (Utrecht), is: hoe kan je op basis van middeleeuwse bronnen een publieksboek schrijven, en in hoeverre verschilt zo’n werk van een academische studie? We zullen een eerste concept van een boekproject bespreken…

Virtual Reality komt steeds dichter binnen handbereik van docenten en studenten. Hoe zou Virtual Reality kunnen bijdragen aan de leerervaringen van uw studenten? Vrijdag 19 februari, kwam een groep van ruim twintig docenten en experts af op een bijeenkomst over deze vraag in Studiecentrum Plexus. Met…

The production, use, and exchange of bodily ornaments through the lenses of the microscope

In this thesis we will explore the use of fuzzy systems theory for applications in bioinformatics.

Researchers, policymakers and funders have to take more account of the effect of sex and gender in scientific research. This is the view presented in an advice paper published by LERU, the League of European Research Universities. The lead author is Vice-Rector Simone Buitendijk.

The knowledge cafe in De Balie in Amsterdam has navigation as its topic. Ineke van der Ham was main guest, and discussed navigation ability together with experts on cartography, animal navigation and navigation technology. A video of the interactive event can be accessed through the link below.

Physicist Joost Frenken was interviewed on the radio show 'Langs de Lijn en Omstreken' (Radio 1) about the recent discovery of superconductive graphene. The one-atom-thick material was already known for its strength, flexibility, lightweight and good conductivity.

Two of our colleagues received a royal decoration. Professor Jo Hermans became “Ridder in de Orde van Oranje Nassau”, and Professor Jan Schmidt became “Officier in de Orde van Oranje Nassau”. They receive the decoration as an acknowledgement for their extraordinary and selfless contribution to others…

In 2016, Leiden University hosts the monthly meetings of the Music and Cultural Analysis reading group.

De Pagus Renensis van de 4de tot de 8ste eeuw na Chr.: Een archeologische synthese

In this dissertation, we study partition-based models that can be used both for interpretable predictive modeling and for understanding data via interpretable patterns.

Through a range of case studies spanning the post-Cold War period in Iraq, Moldova and Serbia, this book studies asymmetric conflicts where warring sides exhibit vast power differentials.

Can we identify different degrees of economic integration, both within and between regions, on the basis of archaeological proxies?

In this thesis, Quantum computing, norms, and polynomials, we investigate the interplay between quantum mechanics, complexity theory, and functional analysis, three central areas of physics, computer science, and mathematics, respectively.

Big Science, commonly defined as conventional science made big in three dimensions, namely organizations, machines, and politics, brings a plethora of different stakeholders together, often for a long period of time. This includes policymakers, scientists, (scientific) managers as well as local “host”…

This project is a collaboration between Sanquin, LUMC and LIACS. It focuses on the development of meta-modelling methods and tools for the exchange, analysis, and publication of anonymised patient data. Measures are being constructed to evaluate both the level of privacy and the extent to which an anonymized…

A growing amount of literature is being devoted to interrogating gendered dynamics in both violent extremism and terrorism, contributing to the integration of international and feminist security. This includes how such dynamics can shape differences in the motivations and participation of women and…

Kyra van der Moezel defended her thesis on 7 September 2016.

The global agri-food system plays a critical role in food security and environmental issues.