Citizens, journalists and scholars notice that foreign policy in, and of, the European Union, is ‘de-Europeanising’. Political scientist Daniel Thomas (Leiden University) offers a theoretical exploration of the likely implications. He expects that it will become more difficult for the EU to achieve…

International education in the Netherlands is under pressure. There is pressure on the student housing market, and there is a greater desire among right-wing parties to keep our education and students within the borders and to make studies Dutch-language. In these social matters we look at what international…

To argue that people can control the relative contributions of goal-driven and stimulus-driven processes to decision-making and action selection.

Rayyan Toutounji (also written as Tutunji), is psychologist and cognitive neuroscientist specializing in stress-related disorders such as depression and burnout. He has previously worked at the Donders Institute for Brain, Cognition, and Behaviour where he investigated how neural responses to stress…

On 20 September 2019, the opening drinks for the Open Science Community Leiden will be held at the Faculty of Social and Behavioural Sciences. Open science is the approach to science aimed at making scientific research accessible, reproducible, and freely available to people within and outside the academic…

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.

On 26 June 2019, Lisa Louwerse defended her thesis 'The EU’s Conceptualisation of the Rule of Law in its External Relations: Case Studies on Development Cooperation and Enlargement'. The doctoral research was supervised by Prof. C.A.P. Hillion.

In this article, Annemiek de Looze and Eefje Cuppen, investigated empericallly if and how social conflict leads to institutional change.

‘Schiedsgerichte in den Aussenverträgen der EU. Neue Entwicklungen unter Einbezug der institutionellen Verhandlungen Schweiz–EU’, Jusletter 28 May 2018

Tonal bilinguals of two closely related Chinese dialects are amazing people. They handle two tonal systems in their mind; their two vocabularies are from closely related dialects, and they write translation equivalents with common Chinese characters. Their unique language situation makes their mind…

In previous studies at our laboratory it was demonstrated that drug exposure of HepG2 cells can lead to an altered TNFα-induced NF-κB oscillatory phenotype, concurrent with a synergistically increased sensitivity for TNFα-induced apoptosis.

Legal scholars and professionals are confronted with a rapidly increasing volume of legal publications. Only part of these publications are relevant enough to be cited. This project aims to determine which documents that are, and whether alternative metrics are a reliable way to predict whether documents…

In this thesis, we address two problems concerning the tautological rings of the moduli space of curves.

Political institution (like the Council of the European Union and the European Parliament) generate large bodies of text. These great amounts of text can impossibly be read by a researcher. Contrary to human researchers, computers are able to read thousands of documents a day. In this research project…

Students, first-time buyers, parents with stay-at-home children, migrants in need of a house; the problems in the housing market affect many layers within the society. The lack of housing is a growing problem. How does this affect our behaviour and the way we think about 'living' ? What are the consequences…

Where does Europe begin and end? How have the European Union and its precursors decided which countries are eligible to join the community and which are not? Few issues are more hotly debated, more important for the course of European integration, or more consequential for individuals in and around…

This thesis focuses on the social dimensions of crane and wetland conservation in rural landscapes in Kenya, Uganda and Zimbabwe.

The aim of 'Intergroup helping' is to provide an overview of psychological research on intergroup helping, such as between countries or organisations, or in case of international crises. Co-editor Esther van Leeuwen has been an assistant professor at Leiden University in Social and Organisational psychology.…

From 1 January 2017, Professor of neurocognitive developmental psychology Eveline Crone has been appointed member of the Social Sciences Council of the Royal Netherlands Academy of Arts and Sciences (KNAW).

An archaeological case-study of the Pointe des Châteaux, La Désirade and Les Îles de la Petite Terre micro-region, Guadeloupe, F.W.I.

This open access book brings together an eclectic cast of scholars in related disciplines to examine ageing in the Soviet Union, covering the practice of geriatrics, the science of gerontology, and the experience of growing old. Chapters in the book focus on concepts and themes that analyse Soviet ageing…

This article introduces the concept of Repertoires of Comparison (RoCs) to explain how certain comparisons become deeply embedded in social and political life.

On Friday 7 March 2025 Adam Knight successfully defended a doctoral thesis and graduated.

On 18 January 2025, the Annual Reconnect & Gala of the Advanced MSc International Relations and Diplomacy (MIRD) celebrated over 20 years of bringing together current MIRD students, alumni, and faculty members. This year’s discussions focused on the theme: 'The Future of IR: Digital Innovation, Climate…

Roel Bekker's researches the failures of government: what are government failures, what are the causes of government failures, what are the most used apologies, what can be done to decrease the chance of making failures?

This project combines an extensive new open database on linguistic distributions, spatial modelling and areal linguistics in order to disentangle the roles of social and environmental factors on the emergence of linguistic diversity patterns of South America.

Ellen de Bruijn and Berna Güroğlu, both of the Psychology Institute, have been proposed for professorships by the Faculty of Social and Behavioural Sciences. Güroğlu: ‘I feel honoured that the University has approved the appointment.’ De Bruijn: ‘It’s great, and really motivating, that Leiden University…

This COIn Grant 2025 awarded project allows Leiden University researchers and students to do research on the world’s largest corpus of digitized Ottoman language periodicals and books.

This is a Special Issue of the peer-reviewed journal 'Social Sciences and Missions', which provides a forum for exploration of the social and political influence of Christian missions worldwide.

Moving Romans offers an analysis of Roman migration by applying general insights, models and theories from the field of migration history.

This project investigates which aspects of social media content adolescents attend to and how these relate to their credibility judgments, aiming to systematically understand their susceptibility to misinformation and inform effective educational programs that foster youth’s resilience to misinforma…