It often takes longer for women with heart problems to get the right diagnosis. In her Annie Romein-Verschoor Lecture, Professor Hester den Ruijter will talk about how hormones influence the heart and the importance of medical research that focuses specifically on women.

The main aim of this research is to understand the dynamics of identity within indigenous Caribbean communities as expressed through the practice of intentional cranial modification. A multidisciplinary approach will be applied to achieve this aim, combining current anthropological and sociological…

Valedictory lecture

To what extent was labour-induced migration important to the functioning of the towns and cities of Roman Italy?

Patterns of paleomobility in the Caribbean were studied through an inter-disciplinary approach using a combination of archaeological, osteological, mortuary, and isotopic data.

Are there any differences in gaze behavior between high and low socially anxious individuals? What factors influence the relation between social anxiety and gaze behavior?

Leiden-Yale collaboration uncovers a tale of samurai same-sex love in a library manuscript.

This book investigates how gay-identified immigrants and refugees experience feelings of inclusion or exclusion within a sexually-charged online subculture. Explores the response of ethnic minorities to demonstrations of racism and xenophobia within an intolerant European climate. Challenges political…

The study at hand focuses on the control of sex and youngsters through the response by authorities most notably from within criminal justice.

Programs that aim to reduce symptoms of social anxiety in children generally include multiple components, such as exposure and cognitive restructuring. It is unknown if separate components yield positive intervention effects in children or whether a combination of components is required.

All crested and marbled newts (the genus Triturus) suffer from an unusual genetic abnormality, called a balanced lethal system, that kills exactly half of their offspring. How can a trait so disadvantageous have survived millions of years of natural selection?

This book examines how gender relations were regulated in ancient Near Eastern and biblical law. The textual corpus examined includes the various pertinent law collections, royal decrees and instructions from Mesopotamia and Hatti, and the three biblical legal collections. The book explores issues beginning…

Perception of material culture, design and digital knowledge applications

Lecture, Global Histories of Knowledge Seminar

Sexual exploitation of children abroad: the Dutch government calls on its citizens to not look away from 'suspicious situations’ while turning a blind eye to the root causes of the problem themselves. Koning, who recently obtained her PhD on transnational sexual exploitation of children from Leiden…

NETHATE is a Marie Skłodowska-Curie Actions (MSCA) project seeking to investigate the roots, societal impact and mitigation strategies of hate in offline and online foras.

Why are not all children equally responsive to variations in the social environment?

This book sheds new light on domestic forced migration by examining the experiences of American-born slave migrants from a comparative perspective.

A multi-disciplinary approach to past lifestyles and cultural practices

Humanities are needed to make sense of social issues. Watch or listen to the stories of our experts who tell about their research and the impact on society. Get to know the world at Humanities!

From self-driving cars to innovative drug development: artificial intelligence (AI) will fundamentally change our lives in many different ways. We study this technology at a deep and fundamental level. And we seek answers to questions about liability and privacy, for example. Our researchers from…

A recent study on reintroduced tigers in Panna Tiger Reserve in India reveals that risks from tigers increased more because of human behaviour and people's livestock husbandry practices.

Research at Leiden Law School means research at the highest level.

The Faculty of Archaeology at Leiden University offers education in Human Osteoarchaeology. We offer a second-year Bachelor course in Human Osteoarchaeology and an extensive one-year track in the Master’s in Archaeological Science specialisation, resulting in a Master of Science degree after complet…

The research master's specialisation Developmental Psychology consists of five main parts: the general courses, the track-specific courses, the elective courses, a research internship and a thesis.

We co-organise our society through law and public institutions. As society evolves, these institutions continually face new dilemmas. Legislators must regulate AI while also fostering competitiveness. Judges are tasked with protecting a healthy environment while respecting democratic decisions. States…

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

PhD defence

Dive into the heart of archaeological science: explore the flora and fauna of bygone ages, study human bones and teeth, analyse the cultural biographies of material objects, or become an expert in the use of digital data in archaeological research.

Tackling human trafficking has been a priority on international, national and local policy agendas for some decades now. Yet a number of knowledge gaps stand in the way of how the issue is approached. Interdisciplinary research is essential if we want to expand our knowledge to benefit policy and pr…

Thanks to the virtual girl Sweetie created by Terre des Hommes, more than a thousand men who had webcam sex have been identified worldwide. They thought they were chatting with a ten-year-old girl. Whether that is punishable by law depends on the country, Leiden legal experts conclude.

Kees Waaldijk has worked for many years to map the rights, or lack thereof, of the gay and lesbian community across the world. As he bids farewell to the faculty, those rights are under renewed pressure. How does he reflect on his career?

The role of religion in the identity construction of LGBTQIA+ folks

Social Citizenship & Migration (SCM) is one of the nine interdisciplinary programmes launched by Leiden University in 2020. It is led by the Faculties of Governance and Global Affairs, Law, Humanities, and Social Science.

What is the effectiveness of (booklet or online) self-help programmes for people with somatic stressors and depressive symptoms? What works best for whom? How to improve motivation and adherence?

It has been argued that the Internet presents numerous new opportunities for crime, including homicide. So far, empirical scholarly research in this domain is rather limited. In order to discover how perpetrators have used the Internet in the homicides they have committed, we conducted an international…

In this research line, the role pharmacological agents and neurochemcial processes play in behavior and cognition is examined with a particular focus on pain, placebo and nocebo effects and intensive care treatments.

Bone research provides plenty of detailed data about the health of a person or a group. This data is not only used to reconstruct the past but also to fight disease today.

This summer school focuses on the emergence of sexual orientation, gender identity (SOGI) and intersex issues in different areas of international law, such as human rights law, refugee law, international economic law, and international criminal law. Details on the application for this edition are available…

Leiden biotech company In Ovo, a spin-off of Leiden University, has received a European Innovation Council Accelerator Pilot Grant. In Ovo will use this 2.5-million-euro grant in its mission to stop the culling of male chicks.

On 7 and 8 March 2024, SciencesPo Law School hosted the ‘Legal Technologies and the Bodies’ conference, where Carlotta Rigotti, postdoctoral researcher focusing on law, gender, and technology at eLaw, presented her working paper about legal perspectives on sex robots and consent.

A female body equals a woman. Nonsense, says Professor by Special Appointment to the Socrates Chair Annemie Halsema. She argues that our sense of identity and social environment also determine our identity. ‘We should stop assigning people’s sex at birth.’

Professor Kees Waaldijk presented the report on the LawsAndFamilies Database to Pearl Dykstra, member of the High Level Group of Scientific Advisors of the European Commission on 25 April. This comparative study shows that in European countries same-sex partners are increasingly gaining equal rights.…

Leiden psychologists receive an Outreach Grant from the Young Academy Leiden (YAL) to talk about facts and fables in their field of research. Marieke Bos, Lara Wierenga, Marit Ruitenberg and Sanne Willems will receive up to €1000 to realise their project.

Startup In Ovo received a large investment in October for the further development of a method to determine the sex of chicken eggs, which would save the lives of millions of newly hatched male chicks per year. German TV channel n-tv came to Leiden to film an item about the spin-off company of Leiden…

Fatemeh (Simin) Tabassi Mofrad has recently received a project grant (€ 25,000) from LUF/Gratama Foundation for her ideas in investigating sex-by-genotype interactions in brain functions. She has a multidisciplinary research perspective which enables her to look at research issues from different angles.…