Constitutional and administrative law covers a broad area of law. It provides the rules with which issues in society can be solved by government authorities.

Papers written on the occasion of the 30th anniversary of the Institute of Prehistory, Volume I.

On 11 October, Amanda Pasma defended the thesis 'Re-entry support from prison-based and community-based professionals'. The doctoral research was supervised by Paul Nieuwbeerta, Hanneke Palmen and Esther van Ginneken.

Lecture, Asia Academy

On 29 June, Erwin Dijkstra defended the thesis 'Discrimination and the foundation of justice: hate speech, affirmative action, institutional opinions'. The doctoral research was supervised by Paul Cliteur and Bastiaan Rijpkema.

An exploration across thirteen essays by critics, translators and creative writers on the modern-day afterlives of Old English, delving into how it has been transplanted and recreated in the twentieth and twenty-first centuries.

Science begets technology but technology also begets science. Anne Urai from the Leiden Institute of Psychology is part of an international team team that rolls out a new, user-friendly, plug-and-play AI tool they hope will become an engine of discovery by quantifying the growing volume of recorded…

In 2023, many of our students and staff won great prizes and secured important research grants.

Tracking early human behaviour through plant processing and -exploitation.

The Journal of Global Slavery (JGS) aims to advance and promote a greater understanding of slavery and post-slavery from comparative, transregional, and/or global perspectives. It especially underscores the global and globalizing nature of slavery in world history.

An overview of awards and prizes granted to our staff and students in 2017, as well as special appointments and royal distinctions.

Diplomatica: A Journal of Diplomacy and Society addresses the broad range of work being done across the social sciences and the humanities that takes diplomacy as its focus of investigation.

The people behind The Hague Journal of Diplomacy and its online platform.

Leids onderzoek naar bestraffing komt tot stand uit verschillende disciplines. Het onderzoeksproject kent een juridische, criminologische, sociaalwetenschappelijke en filosofische invalshoek.

Lecture

How can saxophone without mouthpiece techniques be accurately and consistently comprehended and explained?

The main objective of this research is to map out the cities of the Roman Near East in the imperial period, with a focus on location, city size and urban features, in order to study the form the urban system and its levels of integration.

This project investigates the transposition of natural historical material, knowledge and vision, between different media (collection, scientific drawing, academic texts, the visual arts and/or literature) – a transmission that happens in the borderline between the traditional, emblematic worldview…

Self-censorship violates principles of a free society but few people want to take the role of the martyr.

Artistic research has come of age, and with it the Orpheus Institute. Founded twenty years ago, the Institute’s purpose from the start has been to pursue research through the practice of musicians.

In October 2014 a new publication on artistic research has been launched. The book is called Artistic Experimentation in Music. An Anthology, edited by Darla Crispin and Bob Gilmore, and published by Leuven University Press.

Plant Sciences' contribution to the Host-Microbe Interactions research theme is to dissect how microorganisms and microbiomes interact with the plant host and the insects on those plants, and how these insights may be harnessed to improve plant growth and health, by steering microbiome composition and…

Global climate change is manifest by local-scale changes in precipitation and temperature patterns, including the frequency of extreme weather events (EWEs). EWEs are associated with a myriad range of adverse environmental and societal consequences, including negative impacts to agriculture and food…

Negotiation can only really be an alternative to warfare, if the parties agree on a framework of rules and procedures. And if the confidence of the partners may increase in another. But negotiations continue to wage war by peaceful means.

Early Modern Medievalisms: The Interplay between Scholarly Reflection and Artistic Production

The Nietzsche-Wörterbuch (NWB) has evolved into a long-term, multi-volume work on a global scale with around 30 contributors from a range of disciplines located all over the world

Managing scarcity to serve the public interest is a classic government task. An important way to execute this task is by allocating individual rights that are only available in limited quantities, such as CO2 emission allowances, gambling licences, subsidies, radio frequencies, public contracts and…

This subproject of 'From Homo Economicus to Political Animal' will be on ancient analogues for modern-day “ersatz economics”, the economics of the “man in the street”.

What is the effectiveness of two school-based skills-training programs in promoting mental health?

Biosynthetic gene clusters (BGCs) for natural products are widespread in microbial genomes, and they are rapidly exchanged. This research assesses the factors that control the spread of BGCs and resistance genes in nature. This includes risk assessment for the spread of engineered DNA in nature.

This book on Alba is edited by Maurits Ebben, Margriet Lacy-Bruijn and Rolof van Hövell tot Westerflier. Each of its fifteen chapters are dedicated to developing a new understanding of a sometimes misunderstood figure in European history.

The EU JudgeCo Platform provides valuable sources on cross-border insolvency court-to-court cooperation and communication in a EU context.

The Prison Project investigates to what extent imprisonment has consequences for the relapse, health, career and intimate relations of the (ex-)prisoners.

The Institute of Security and Global Affairs (ISGA) hosts two research journals and publishes the ISGA Reports series. Besides its own publications, researchers at ISGA also publish books or journal articles elsewhere. You can find all these external publications under Research output on the right.

Research in the History and International Studies 1900-present specialisation addresses the interconnectedness and interdependence of contemporary global political, economic and cultural developments from a multidisciplinary perspective which is rooted in the humanities.

People with a mild intellectual disability (MID) experience more loneliness than people without MID. In the COLLELO project, researchers from social and humanities disciplines collaborate with people with MID and their (in)formal networks to create an (online) learning community that aims to understand…

This research cluster is a part of the Institute of Political Science’s research programme ‘Institutions, Decisions and Collective Behaviour’. Its members study the design and functioning of Dutch political institutions as well as attitudes and behaviour of political elites and citizens.

To address major societal challenges, research needs to go beyond the boundaries of traditional disciplines. We believe this starts with education. By exposing students to people from different scientific fields, they learn to deal with diverse perspectives and can broaden their horizons. Professors…

The Leiden Leadership Programme (LLP) employs experts in the field of leadership. They equip master's students from Leiden University, TU Delft and Erasmus University Rotterdam with the necessary leadership knowledge, insights and skills to increase their social impact.

‘Critical thinking’ is an expression all academics have heard of: it’s the first learning objective in the Leiden Vision on Teaching and Learning. It’s both a historical topic with roots that reach back a long way and a topical problem too. The question on everyone’s lips is whether critical thinking…

On 1 October 2019 the Hazelhoff Centre for Financial law hosted its 19th guest lecture starring Paul Sharma, managing director at Alvarez & Marsal and co-head of the European Financial Industry Regulatory Advisory Services practices.

PhD defence

Forum essays provide a framework for intellectual exchange and debate about the role of diplomacy around a particular theme. The essays are argumentative contributions and are shorter than research articles.

Numismatic research of Roman coin hoards in the Netherlands. The use of numismatic sources is incorporated in Claes’s research project “Dialogues of Power”. This project aims to analyse the legitimising dialogue between Roman emperors and their Germanic legions during the so-called “crisis of the third…

Is the legitimacy of law and governance of multilevel jurisdictions diminishing? What is the significance of (diminishing) legitimacy for the effectiveness of law? These kinds of questions about the legitimacy of the supranational formation of law, its application, and the policy and governance based…

PhD defence