On Tuesday 3 September 2024 Straton Papagianneas successfully defended a doctoral thesis and graduated.

The Children’s Rights Monitor provides a thematic overview of the implementation of the UN Convention on the Rights of the Child in the Netherlands.

Pulsars were first discovered in 1967 and since then the population has grown and expanded over several wavelengths.

This project aims to explore and examine the factors that impact upon the efficacy of information disclosure duties pertaining to customer data use in online business.

The experiments described in this thesis employ local lentiviral knockdowns in brain areas of female zebra finches followed by behavioural assays consisting of preference and Go/Nogo tasks.

In 2008, the intervention ‘Denken + Doen = Durven’ (Think + Do = Dare) was developed in the Netherlands (Bögels, 2008). This is a cognitive behavioral therapy program for children and young people between the age of 8 to 18, diagnosed with an anxiety disorder. The intervention is given by a professional,…

Prematurely born neonates require, amongst others, pharmaceutical therapy. Dosing guidelines for these therapies are often based on data from term born neonates or older infants, while these are not necessarily similar to prematurely born neonates.

What issues arise in the changing landscape of privacy, identity and data protection?

Scientists, including our faculty colleague Dr. Mike Field, studying an exceptionally well-preserved woolly rhinoceros have revealed details of what Britain's environment was like 42,000 years ago. The beast's remains were discovered in Staffordshire in 2002, buried alongside other preserved organisms…

Developmental and Educational psychology is concerned with the developmental course and dynamics of cognition, self-regulation, and emotional competence, and the implications for educational and clinical practice.

Research combining a conceptual and practical perspective within the field of teaching and learning second languages.

Since the Second World War, intelligence and security services have played an important role in policy and decision making, particularly with regards to a state’s national security. In this minor programme we study both the organisations, their working methods, their analysis techniques, as well as…

Each month, we will interview a student or staff member from Leiden University about their work or studies in relation to sustainability.

Our mission is to recognise and treat stress and anxiety in children as early as possible, by connecting scientific research, clinical practice and education.

The solar system was formed approximately 4.56 billion years ago. Despite the numerous theories that have been developed over the years, the formation and evolution of the solar system still remain unclear.

The Institute of Political Science is a vibrant department with nearly 70 academic staff in Leiden and nearby The Hague.

Implementing all kinds of change and introducing new structures, far-reaching rules and administrative systems may sometimes seem to distract an organisation from its purpose. Furthermore, there is growing recognition of the need of staff of public organisations to find more meaning in their work: the…

Essays dedicated to Frans Wiggermann

The article investigates the origins of Indo-European languages in Asia by 65 coupling ancient genomics to archaeology and linguistics.

On 11 June 2020, Sabine Witting defended her thesis 'Child Sexual Abuse in the Digital Era: Rethinking Legal Frameworks and Transnational Law Enforcement Collaboration'. The doctoral research was supervised by Prof. J.J. Sloth-Nielsen and Prof. S. van der Hof.

The thesis addresses the long-term dynamical evolution of hierarchical multiple systems.

Open up a world of opportunities with your master's degree in Archaeology from Leiden University!

Circumstellar discs are the reservoirs of gas and dust that surround young stars and have the potential to become planetary systems.

On 23 April, Sheila Haji defended the thesis 'The shadow side of positive organizational change: practitioners’ experience navigating dialectical tensions in appreciative inquiry'. The doctoral research was supervised by Jan Adriaanse, Mark Dechesne and Renee Heath.

This research aims to fully recall these lost sound aspects of the eighteenth century and is, therefore, a study that passionately advocates the diversity of musical experience in the context of historical performance practice.

Research report January 2020. Supported by the lectorate ‘Music, Education and Society’, research group ‘Making in Music’, Royal Conservatoire The Hague

Vincent van Heuven passed away unexpectedly on Friday 6 February 2026 at the age of 76 at his home in Kûbaard (Friesland), the Netherlands.

Man-made sounds in and around the oceans stress marine life and have an impact on marine species and ecosystems by changing the underwater acoustic climate. Hans Slabbekoorn from the Institute of Biology Leiden pleads for technical solutions to mitigate problems of noise pollution. Science review paper…

Hans Slabbekoorn, researcher at the Institute of Biology Leiden, is from the 16th to the 26th of July on board of the Pelagia, the Dutch national sea research vessel, which is currently on a collaborative mission for the National Initiative Changing Oceans (NICO). Slabbekoorn will study the effects…

Mazène Hochane and Xueying Fan have won the fourth annual LION Image Award. They created a detailed colour image of a human kidney in development.

On the 1st of October a new project funded by the Joint Industry Programme (JIP) started at the IBL on the potentially negative effects of sound on fish. Behavioural biologist and bioacoustic specialist Dr. Hans Slabbekoorn leads the international research team.

Willemijn Heeren has, together with dr. Lei He (Department of Linguistics, Tübingen & Center for Forensic Phonetics and Acoustics, Zürich), received a research grant from the International Association for Forensic Phonetics and Acoustics to start a pilot project on “Between-speaker variability in dynamic…

On the 15th of October, IMARES and IBL co-organized a symposium on underwater acoustics related to research on fish and marine mammals.

We investigate the processes underlying the patterns. We aim to explain biodiversity by investigating the distribution, function, development, and evolution of body forms, as well as physiological and behavioural variety among species. We collaborate with those specialized in describing, archiving,…

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

On 10 November Guanmian Xu successfully defended a doctoral thesis and graduated.

We are cosmologists, in other words we use physics to study the Universe, how it started and evolved into the structure that we observe around us.

Why, then, do governments choose to disclose intelligence and what factors shape how they do so?

How was the future United Nations Organization promoted to global publics during WW II?

The research master’s Archaeology is a two-year programme designed for talented students pursuing an academic career in archaeology.

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?

The digitisation of society is a worldwide challenge. Not only are robots increasingly taking over human tasks, they are even beating the world champion at solving the most difficult brainteasers.

The Editors of PAIR are always interested in suggestions for themed editions. Anyone wishing to propose a theme and/or to assist as a ‘guest editor’ should contact one of the editors of PAIR.

Reflective dialogue is an effective instrument for professional learning of teachers. This research considers the characteristics, development, stimulating and limiting conditions for reflective dialogues in the context of Dutch primary school teachers who collaborate and learn together. The goal is…

The Netherlands generally performs above average in the protection of personal data, according to research carried out at Leiden University. Germany is the leading country, while countries such as Italy and Romania are lagging behind.

Get to know us through our online and in-person events for prospective students!