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Every year, around 400 PhD candidates defend their dissertation at Leiden University, spread across all the University’s different disciplines.

At Leiden University you’ll have every opportunity to broaden your horizon. We’ll stimulate you to get the best out of yourself, with additional, more challenging programmes, for example.

The scientific research of the Faculty of Governance and Global Affairs is organised around a number of centres and institutes in The Hague, city of peace, security and justice.

How do inclusion and exclusion affect people?

How can mentors and social workers foster the vocational identity of at-risk youth and improve their prospects?

What contributes to the successes and failures of governance networks in small to medium-sized Western European host cities in attracting International Organizations?

Do recent developments in the European security architecture signal the end of multilateral cooperation, or the beginning of a new era with emerging forms of international security collaboration?

In this article, Thijs van Dooremalen and Philip Smith investigate how public discourse of heatwaves have shifted in British newspaper discourse, drawing on Raymond Williams’s theory of dominant, emergent, and residual cultural patterns to analyse changes in language and interpretation over recent d…

The Leiden Risk & Regulation Lab serves as hub for excellent research at the forefront of regulation and risk governance and acts a platform for engagement with the practice of, and education in, regulation and risk governance.

How do public organizations use strategic regulatory communication in regulatory governance?

Dionysius of Halicarnassus and Augustan Rome: Greek culture in the Roman world.

How do Humanitarian Response Organizations (HROs) and Virtual & Technical Communities (V&TCs) collaboratively govern disaster sensemaking processes, and what challenges shape the effectiveness of these collaborations between 2010 and 2016?

Promotor: H.S. Overkleeft, Co-promotor: M. van der Stelt

Metal complexes and 2D materials like graphene were combined to produce structures that can function as sensors.

In the first part, we introduce a new condition, called toric-additivity, on a family of abelian varieties degenerating to a semi-abelian scheme over a normal crossing divisor.

On 29 June 2017, Doris Dull-Zessner defended her PhD dissertation “Value Congruence in a Multinational Corporation”. The supervisors are Professor J.A.A. Adriaanse and Professor J.I. van der Rest.

How were (post) colonial migrants included in post-war welfare systems?

Is online radicalisation is an analytically useful concept when discussing contemporary cases of terrorism?

How is the effect of kleptocracy on foreign policy change mediated by the political-administrative relationship?

How does the design of online participation platforms influence the inclusivity of online direct participation?

What political factors affect the speed or duration of EU legislative decision-making?

Promotores: J.J.M.M. Rutten, F.S. de Boer, Co-promotor: M.M. Bonsangue

Has there been continuity or change in US counterterrorism policy since 9/11? What factors led to the continuity or change, and how do we classify any such continuity or change?

How do leadership behaviour repertoires take shape in public organizations?

The function of TLRs in innate immunity has aroused worldwide attention soon after its discovery. Because of the broad functions of TLR2 in innate immunity, the drive for the development of TLR2-targeted vaccines or therapeutic treatments has accelerated in the last decades.

How have the armed forces of the United Kingdom, the Netherlands and Belgium adapted to the OMLT task in Afghanistan, and what institutional changes have materialised as a consequence of this adaptation?

What factors can explain the dynamics of de facto statehood in Iraqi Kurdistan at internal, national and international levels? What has been the nature of the de facto statehood in Kurdistan since its inception?

On 10 October 2019, Janneke Vink defended her thesis 'The Open Society and Its Animals'. The doctoral research was supervised by Prof. P.B. Cliteur.

This article investigates how parenthood serves as a critical turning point for young people in Latin America, influencing their criminal trajectories.

What drives the behaviour of accountability forums?

How does open government affect the level of public trust?

Carsten Stahn has just published Confronting Colonial Objects: Histories, Legalities and Access to Culture. The book is part of the OUP Cultural Heritage Law and Policy Series.

The aim of this dissertation is to provide insight in interethnic prejudice of children in the Netherlands and attitudes and ideologies that they are exposed to through two socialization agents (parents and children’s books).

In this article, Seda Gürkan, Özlem Atikcan and George Christou examine how EU institutions responded to Turkey’s democratic decline between 2014 and 2024, analysing how conditionality was framed and applied by the European Commission, European Parliament and European Council.

Leiden University Centre for the Arts in Society (LUCAS) is dedicated to ground-breaking and interdisciplinary research dealing with the relations between culture and society.

The ancient Egyptians knew about marks as well as script. The New Empire (ca. 1550-1070 BC) in particular provides a rich harvest. The script has now been deciphered, but the same does not apply to the system of marks used at the time. Egyptologist Ben Haring has been awarded a subsidy by NWO from the…

As an experiment, student Alicia Cai relied solely on AI tools such as ChatGPT and Claude for supervision while writing her thesis. What lessons were learned?

Care robots, medical treatments, deepfakes and self-driving cars all with the aid of artificial intelligence (AI). The BrAInpower exhibition at Rijksmuseum Boerhaave shows spectacular applications of AI and explains how it can make such huge leaps. Bas Haring, Professor of Public Understanding of Science,…

Papyrology+, founded in 2014, is a collaboration of Leiden scholars studying (Abnormal) Hieratic, Demotic, Aramaic, Greek, Latin, Coptic, and Arabic papyri from a socio-historical, economic and linguistic perspective. Papyrology+ aims to explore new opportunities and directions in the study of ancient…

In the January Quest issue is an article about a project done by three Media Technology students, from the Cool Science course by Bas Haring.