Day-to-day activities are important in the development of social identities, the establishment of social standing, and the communal understanding of societal rules. This perspective is broadly referred to as practice theory and relates to the power of an overarching social structure and the individual…

This thesis, conducted in the framework of ERC Starting grant project BABYLON (PI: Caroline Waerzeggers), presents an investigation into Babylonian society, focusing on the city of Borsippa during Neo-Babylonian and early Persian rule (c. 620-484 BCE).

New Approaches to Understanding the Eastern Mediterranean during Byzantine and Ottoman Times

The Dutch Ministry of Infrastructure and Water Management is refusing to release documents on the safety of Schiphol Airport, despite a court ruling that they must be made public. The case has been running for four years and was brought by current affairs programme EenVandaag.

To what extent are individuals socialised with heteronormativity and gender norms by the national context in which they live, by Dutch schoolbooks, and within Dutch families?

Across cultures, parents help their children master the social and linguistic codes needed in adult life. Recent research on language socialization found important cross-cultural differences, pointing out the need for more diversity for a full understanding of this process. Deaf communities form…

The book addresses the question “How and why do people become involved in European homegrown jihadism?

This focal area is concerned with the development of responsible research assessment practices. It also focuses on fostering healthy research cultures, for instance in terms of social safety and open science practices.

Leiden University and the Dutch Royal Family maintain ties that go back to 1575, when William of Orange founded the University. Many members of the Royal Family have studied in Leiden and several have received an honorary doctorate.

Leiden University endorses inclusiveness and diversity. It is open to all those who wish to study or work here, and to develop their full potential. The University is an open community where everyone who wants to contribute to its ambitions and to all that it stands for will feel at home and have equal…

Our research at CWTS is organized in three focal areas. These focal areas represent our core areas of interest, as defined in our knowledge agenda for the period 2023-2028.

Leiden University is building an open, learning organisation: a strong community where we trust each other, work well together, and take responsibility. This is also about how you as a staff member can contribute to team results, your own growth and development, and a pleasant, safe working environment.…

How do the pathways of Dutch converts to Islam involved in jihadist movements differ from those of Dutch converts who are not, in terms of their life prior to Islam, their conversion experience and the form of involvement with the Islamic community after conversion?

This project aims to improve understanding of, and responses to, the phenomenon of lone actors through analysis of comprehensive data on cases from across Europe.

This paper written by Vydra and Kantorowicz answers the research question ‘What policy-relevant information does Twitter contain?’ as well as the research question ‘How does this information change between a period of normalcy and a period of crisis?’

Written by a select international group of leading privacy scholars, Social Dimensions of Privacy endorses and develops an innovative approach to privacy.

How did the slave peculium function in the socio-legal context of the Roman Empire?

Sanne Kellij and colleagues systematically reviewed 142 articles, examining evidence for three hypotheses on the relation between victimization and social information processing.

The author researched the motivations of bureaucrats to integrate refugees into welfare services even when they do not have any legal obligation to do so.

Robotics, using social mechanisms like hormonal modulation, may accelerate our understanding of core sociality principles. By looking at social robotics through an evolutionary lens, we propose this field as a promising framework to investigate the fundamental bricks of sociality from an evolutionary…

The availability of indicators based on social media has opened the possibility to track the online interactions between social media users and scholarly entities.

Grassroots heritage initiatives and community engagement

How is the development of physiological responses to social evaluation in adolescence affected by other normative developments, such as pubertal, socio-cognitive and psychosocial development? Are social anxiety and public speaking anxiety associated with characteristic patterns of stress responses…

A Diachronic Perspective on the Aegean

'Academics who share their knowledge with the outside world on social media are often insulted or even threatened. Especially female academics and academics of colour seem to regularly be the victim of sexist and racist comments.' This is what Ineke Sluiter, Professor of Greek Language and Literature…

Our mission: a positive impact. Our vision: community. By involving the world around us in our education and research we make a positive impact. We do this by applying Open Science.

The Social Assistance and Minimum Income Levels and Replacement Rates Dataset, assembled by Jinxian Wang and Olaf van Vliet (version December 2016), provides data on minimum income benefit schemes in 33 countries from 1990 until 2009.

On 24 January 2024, Vethaak defended the thesis 'Empirical Analysis of Social Insurance, Work Incentives and Employment Outcomes'. The doctoral research was supervised by Koen Caminada and Pierre Koning.

A mosaic is the only image which can do justice to museums in the Caribbean. They are as diverse and plentiful as the many communities which form the cores of their organizations and the hearts of their missions. These profoundly social museums adopt participatory practices and embark on community engagement…

The key question addressed in this family study is whether the psychophysiological and neurocognitive abnormalities often reported in SAD patients are heritable and can thus be found in family members of SAD patients as well. Determination of heritability of these deficiencies is essential for endophenotyping.…

Leiden University, Department of Economics

In this consortium CWTS (Leiden University) collaborates with two Swedish SMEs: Monocl AB and Recorded Future AB. Monocl AB delivers intuitive analysis software to Life Sciences professionals in support of strategic decisions and improvement of business performance. Recorded Future AB is an organization…

Study information

Security and safety challenges are at the top of the list of the most pressing issues of contemporary society.

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Today, 13 May 2024, Leiden University’s Executive Board is publishing the advice of the committee that investigated reports of unacceptable behaviour and breaches of academic integrity. These reports were about a professor from the university and their partner (a former member of the university staf…

How do old and new Information and Communication Technologies (ICTs) relate to new social and political movements in Central Africa? What does this tell us about Africa and the Information Age?

A recently published article, Productveiligheid en aansprakelijkheid voor AI (Product Safety and Liability for AI), by Gitta Veldt and Tycho de Graaf examines the European Commission’s proposed Artificial Intelligence Regulation.

La radicalisation est devenue un mot désignant notre monde en couleurs négatives. Ce livre cherche à comprendre ce que c'est que la radicalisation au Sahel et aux Pays-Bas?

Would you like to go to work feeling healthy and energetic, and end your working day with a positive feeling, but things don’t always work out that way? Healthy University Leiden works with you to create a healthy and pleasant working environment in which you can realise your full potential.

An analysis of pot decoration and hut distributions from the Central European Neolithic communities of Elsloo and Hienheim.

Inaugural lecture

The EU Product Safety Award encourages and honors innovative business initiatives and research that make a difference for consumers. This year, the Gold Medal was awarded to Eduard and Hadassah for their innovative research on diversity in robot design, testbed, and safety standardization

Study information