Central in this thesis are the various forms the research-teaching nexus can take in the university, especially in the Faculty of Humanities. The importance of a strong relation between research and teaching is advocated by many academics, but debate is going on about the forms this strenghthened relation…

In this thesis, the focus lies on studying glucocorticoid receptor dynamics in living cells with the aim of understanding how this transcription factor finds its DNA target sites to regulate transcription.

This interdisciplinary study focuses on (trans)national ethnic and popular networks, combining historical-ethnographic and computational methods to understand the ‘workings’ of networked conflict interfering in the increasingly violent conflict in the Sahel (Africa) and beyond. The project focuses on…

This project investigates how inhabitants of Leiden with a migratory background experience the extent to which their language and cultural background is welcomed in Dutch society and how this affects their identity, sense of belonging, and general wellbeing.

This project examines the intriguing relationship between Greek literary criticism and Latin literature in Rome (first centuries BC and AD).

The lipid matrix of the skin's stratum corneum plays a key role in the barrier function, which protects the body from desiccation. The lipids that make up this matrix consist of ceramides, cholesterol, and free fatty acids, and can form two coexisting crystalline lamellar phases: the long periodicity…

This course explains the functions of each international court and tribunal in The Hague. On the basis of cases and interviews with judges and lawyers, this course explores the role of these courts and tribunals and their potential to contribute to global justice.

In tracing intra-site, local and regional craft networks in Late Bronze Age Tiryns (Greece) the project aimed to understand technological changes, (dis)continuities and social practices from the Late Palatial until the Post Palatial periods in Mycenaean Greece.

Chinese materia medica (CMM), comprising a diverse array of natural substances from plants, animals, and minerals, has been integral to Traditional Chinese Medicine (TCM) throughout history. This study investigates the dynamic evolution of CMM, noting shifts in species for improved therapeutic effects…

PhD defence

Why do certain incidents of serious violence end lethally whereas others do not? What role do personal characteristics of offenders and victims play and how do immediate situational factors influence outcomes?

Streptomyces are multicellular, Gram-positive bacteria in the phylum of actinobacteria which produce a high amount of bioactive natural products of which the expression is tightly coordinated with the life cycle.

Doctoral Thesis

As part of the NEXUS1492 project, this project will use ancient DNA techniques to shed new light on the demographic and health history of the Caribbean and the impact of European colonization on indigenous communities in the region.

Tens of thousands of soldiers and civilians have died as a result of Russia’s invasion of Ukraine in February 2022 and the continuing armed conflict. Many forms of critical infrastructure have been destroyed. Much of this devastation has been caused by weapons that utilise forms of artificial intelligence…

Promotores: Prof.dr. G.R. de Snoo & Dr. R. Heijungs

On 15 February 2022, Morshed Mannan defended the thesis 'The Emergence of Democratic Firms in the Platform Economy: Drivers, Obstacles, and the Path Ahead'. The doctoral research was supervised by Prof. I.S. Wuisman and Prof. J.A.A. Adriaanse.

What is the state of access to justice in real property grievances in today’s Libya, and how should it be improved?

On 7 May, Aleksandre Zardiashvili defended the thesis 'Power and dignity: the ends of online behavioral advertising in the European Union'. The doctoral research was supervised by Bart Custers and Simone van der Hof.

We aim to understand ion homeostasis in the model eukaryote S. cerevisiae.

In this book Adam Fairclough chronicles the odyssey of black teachers in the South from emancipation in 1865 to integration one hundred years later.

Stam defended his dissertation ‘Freedom of speech and the suppression of discrimination in the Netherlands: a constitutional-developmental approach’ on 12 November 2025. The doctoral research was supervised by Afshan Ellian and Bastiaan Rijpkema

This book surveys a distinct human phenomenon in the history of the ancient Near East: individuals who were born males but, under various social and historical circumstances, their masculine identity was considered ambiguous. They bore specific titles and were engaged in cult or palace administration.…

This project investigates the full ecosystem of Middle Dutch prayerbooks in order to answer questions about their role in – and impact on – religion, culture, and society in the late medieval Low Countries.

In this article, Barrie Sander, Assistant Professor of International Law, elaborates some of the risks that arise from relying on AI technologies to address climate change and explores the extent to which human rights law may be harnessed to address such risks through three registers of human rights…

What made the early Islamic empire so successful and have we missed the story by neglecting crucial evidence? The 7th-century Arab conquests changed the socio-political configurations in the Mediterranean and Eurasia forever. Yet we do not really know how the Arabs managed to gain dominance of this…

Today’s socio-economic challenges aren’t new. In the centuries after the retreat of the Roman state people with different backgrounds and with different ways of life somehow managed to build and maintain a complex economic system in northern Gaul that would produce the ruling dynasties of Europe. By…

RAWCLIC’s main goal is to develop knowledge on the future raw materials (RMs) demand, supply and associated environmental impacts induced by the energy and digital transitions in the EU, and to support fact-based industry- and policy- decision-making enabling these transitions.

Reproducing past, present and future: colonial visions and experience in Asia in the residencies

The main aim of this project is to provide a full analysis of the actual influence of French on Dutch in The Netherlands during the period of 1500 - 1900.

This dissertation provides crucial but as yet missing empirical data on the tone accent opposition in the so-called

In this article, Seda Gürkan & Rosa Sanchez Salgado show which emotions the Members of European Parliament (MEP) expressed in the wake of Qatargate.

This study attempts to understand how indigenous community institutions pose an important role in sustainable community-based development, including the integration between local culture and development.

In times of hardships or crisis, local people know how to deal with it using their resourcefulness. Although efforts are sometimes made by the government to help them, they are fully aware that community support is at least equally important.

Dr Jenny Doetjes was appointed Professor of Semantics and Language Variation in February. During her professorship Dr. Doetjes wishes to focus on charting linguistic patterns between languages that, at first glance, seem to have little to do with each other.

‘It has never been so easy to set up a Studium Generale series.’ With these words Tilman Grünewald thanked speaker Frank den Hollander, who kicked off the Studium Generale series on complex networks on Monday 20 February.

Bone remains that are thousands of years old are often too fragmented to be identified. PhD candidate Frido Welker is the first person to be able to distinguish human bones from one another on the basis of old proteins. PhD defence 18 May.

An unexpected phenomenon in a merger of a cluster of galaxies. An international team of astronomers led by Francesco de Gasperin has witnessed a gas tail of a galaxy, that slowly extinguished, but then lightened up again

Sterre ter Haar has won the Rachel Carson Graduation Prize for her thesis on how rising levels of CO₂ affect the nutrient content of plants. For the Industrial Ecology student, the award is a crowning achievement after a difficult period of recovering from long COVID.

Brexit has been a kind of shock therapy for the EU and has eventually led to more appreciation for European cooperation. That is what Professor Luuk van Middelaar claimed on 30 November at the conference ‘Brexit and the future of the European Union’ which marked the 60th anniversary of the Europa Institute…

A therapeutic vaccine against HPV-16 (type 16 human papillomavirus) improves the survival rate in cervical cancer patients. A new study by ISA Pharmaceuticals B.V. (a Leiden-based biotechnology company) and the Leiden University Medical Center (LUMC) shows that this vaccine produces a more robust response…

The large-scale project NanoInformatics will assess the risks associated with nanoparticles. The project will be funded by the EU with 6.8 million euros and was launched at the beginning of this year. Three scientists from Leiden are involved. 'For the first time, this project combines the various experts…

Antibiotic-resistant bacteria are a major problem worldwide. Molecular biologist Changsheng Wu explored innovative methods of developing new antibiotics more simply and more easily. He also discovered a new type of antibiotic.

On November 16 a festschrift in honor of Dr Olivier Nieuwenhuyse was presented in a moving event at the Faculty of Archaeology. Professor Bleda Düring, a personal friend of Nieuwenhuyse, was one of the initiators. ‘If he had been here, he would have loved this book.’

On 27 January 2017 the fifth issue of the Journal of the LUCAS Graduate Conference, titled 'Breaking the Rules: Artistic Expressions of Transgression', was published.

An exhibition at Oude UB takes visitors to the historical Silk Road. Old maps, clothes and jewellery reflect the rich heritage of the cities of Central Asia and their inhabitants.

Leiden University Medical Center (LUMC) has spent the past five years coordinating an international study of genetic mutations and breast cancer risks. The results will make it easier to determine which genes increase the risk of breast cancer and to what extent. The researchers published their results…