What are the various forms of inter-organizational collaboration in the public safety sector? How are different forms of inter-organizational collaborative arrangements related? What is the relationship between inter-organizational collaboration and innovation in the public safety sector?

The factors that dynamically sculpt the inter-regional correlation of brain patterns are poorly understood. Here, we test the hypothesis that they are shaped by the catecholaminergic neuromodulators norepinephrine and dopamine.

In my research I am concerned with the possibility of a politics of sexuality without reverting to identitarian conceptions of sexuality. In a reading of the work of the American author James Purdy, I propose to move towards a politicizing of the concept of narrative identity as developed by the French…

How can we understand the encounter between communities active in sustainability initiatives and governmental agents at the multiple institutional layers in the Netherlands?

Investigating the intercultural connections that shaped practices of knowledge production in colonial Dutch Brazil.

The principle aim of the project is to study the genesis and the quantitative properties of the Early Roman urban network of the Balkan and the Danube provinces.

Johannes Boer's research intends to question the way explicit knowledge is applied in order to restore and perform music from the past with the intention to get as close as possible to its original meaning.

This project aims to excavate and date the setting of the east gate of the Roman fortress of Udhruḥ. This will be compared with other Diocletianic military installations from the region. We also hope to retrieve another gate inscription which can shed light on the function and political embedding of…

The aim of this project is to study the influence of Longinus’s treatise ‘On the sublime’ on practice and theory of architecture and theatre in seventeenth-century Paris and Amsterdam.

Subproject of

Homicide followed by the suicide of the perpetrator often leads to shock and incomprehension. It has been suggested that media reporting on such cases could lead to an imitation effect.

Timo Slootweg, associate professor at he department Philosophy of Law, published a chapter about Paul Scholten in

The subject of this thesis is Alverata, a twenty-first-century typeface whose design was inspired by the shapes of Romanesque capitals such as those found in inscriptions of the eleventh and twelfth centuries.

Research into the wishes and (care) needs of older migrants

This research sets out to answer the following questions:

What impact does ethnic profiling and accusations of ethnic profiling have on organizations and the border police officers working at the operational level, and what structural factors on the societal and organizational level contribute to the process of ethnic profiling? Over a period of three years…

Many galaxy clusters exhibit bright diffuse radio emission that traces the underlying structure of the intracluster medium (ICM).

Madeleine Hosli, Professor of International Relations at Leiden University, together with two other authors, wrote a chapter in Group Politics in UN Multilateralism. This chapter assesses the composition and functioning of the African Union (AU) within the United Nations.

On 23 April, Rowie Stolk defended the thesis 'Interest group litigation in the Dutch polder: An interdisciplinary perspective on access to the courts'. The doctoral research was supervised by Ymre Schuurmans and Jerfi Uzman.

The basic concern that informs every part of the research is in wonder of what happens when sound happens as an aesthetic force. The emphasis of each query lies on the active occasion, the radical empiricism, the moment of encounter, how the sonic event comes to pass as aesthetic force.

A scientific assessment of the site selection for the ‘Frontiers of the Roman Empire’ Unesco World Heritage Site.

This research paper seeks to examine the nature of the nexus between right-wing extremism and the military by surveying five potential consequences (i.e., problem areas) arising from the presence of right-wing extremists within the armed forces of twelve Western countries.

A comprehensive analysis of the state of play, the design of monitoring mechanisms, and creation of a toolbox of support measures.

The database is created by the Centre for Public Values and Ethics of the Institute of Public Administration. Its aim is to collect and describe scandals involving (supposed) corruption and lacking integrity of public officials in the Netherlands between 1945 and the present.

On 9 October, Corné Smit defended his doctoral thesis, 'Minority governments in the Netherlands and Denmark '. The PhD research was supervised by Luc Verheij and Geerten Boogaard.

This project explored the role of material culture, in casu painted plaster and its technologies, in expressing dynamic social identities and in forging complex interwoven human relationships in the context of the Middle to Late Bronze Age of the Aegean and East Mediterranean.

Parasitic worms and stomach bacteria suppress immune reactions such as allergic responses. Parasitologist Hermelijn Smits and lung specialist Christian Taube from the LUMC are trying to learn from these micro-organisms.

How can we facilitate the early recognition of stress and anxiety in the classroom and collaborate with schools in providing low-threshold interventions?

International Coalitions for Peace in the Era of Decolonization, 1918-1970

Resilient Diversity: the Governance of Racial and Religious Plurality in the Dutch Empire, 1600-1800

This project studies the development of civic engagement in the Netherlands from the mid-eighteenth until the mid-nineteenth centuries, through a focus on the local and regional levels.

This project focuses on vocational teachers’ professional development in work placement. Teachers’ learning motivation, learning experience and learning outcomes within work placement will be explored in depth.

When we are in a conversation, how do we know exactly when to respond, and how do we manage to respond so swiftly, yet without interrupting our interlocutors? Can speech melody – in particular utterance final “boundary tones” – help us determine who will speak next, or are these cues too late in the…

The Hague Program for Cyber Norms, a research program at the Institute of Security and Global Affairs, published its first policy brief, in which Dennis Broeders, Sergei Boeke and Ilina Georgieva explore the role of intelligence agencies in cyberspace and the (im)possibilities of oversight and regulation…

On 20 March 2019, Tim Dekkers defended his thesis 'Mobility, Control and Technology in Border Areas: Discretion and Decision-making in the Information Age'. The doctoral research was supervised by Prof. dr. J.P. van der Leun en Prof. dr. M.A.H. van der Woude.

Why is Crossnational and Cross-cultural agents such as Henrich Carloff and Willem Leyel important when studying Early Modern expansion?

This lecture will be hosted on Thursday, 8 January 2026 at 6:00 pm.

This paper provides an initial answer to the question regarding eco-labels: ‘How can we make the development of eco-labels more structured and transparent?’

This study assesses nationwide, disaggregated trends in homicide rates over a 25-year period. Using a unique, detailed dataset, spanning a quarter of a century of homicide data allowed Aarten & Liems to assess type-specific homicide trends and the relationship between gender and age within these tre…

Promotor: J. A. Bouwstra

Middle Paleolithic stone tool technology is one of the major sources of information about Neandertal behavior and adaptations. The Balkan Middle Paleolithic often remains outside of the major debates and interpretations of Neandertal behavior.

Aspergillus niger is an important industrial producer of organic acids and enzymes producing large amounts of spent fungal biomass.

On the 3rd of September, Adrian Stenton successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Adrian on this achievement!

It is the aim of this project to better understand how the physical properties of lipids influences the structure and overall barrier function of the skin.

Promotor: Prof.dr. J.A. Bouwstra, Co-promotor: Dr. A. El Ghalbzouri

In the wake of the COVID-19 pandemic, the pressing question is how this global health emergency impacted the research agendas of the field of crisis and disaster science. This article reviewed contributions in ten important crisis and disaster journals in the two and a half years following the COVID-19…

Promotores: Prof.dr. A.G.G.M. Tielens & Prof.dr. L. Kaper (UvA)

Advanced UHF MRI techniques provide powerful tools for studying the zebrafish brain, an emerging model in neurological research. In this work, various MRI and localized MRS methods are optimized and employed for UHF strength for studying the zebrafish brain.

In this book, Sarah Giest, Assistant Professor at the Institute of Public Administration, provides insight into the collaborative and absorptive capacities needed to provide public support to local innovation through cluster organizations.

Modern receptions of Graeco-Roman Antiquity are important ideological markers of the ways we envisage our own twenty-first-century societies. An urgent topic of study is: what kinds of narratives – sometimes controversial – about Antiquity do people create for themselves at this moment in time, and…