On 9 January 2019, Willem van der Muur defended his thesis 'Land rights and the forces of adat in democratizing Indonesia'. The doctoral research was supervised by Prof. dr. A.W. Bedner and Prof. dr. J.M. Otto.

The extensive use of electronic communication channels and other devices has opened new possibilities for collecting data on human behavior. This information is sometimes openly accessible, but largely part of administrative registration systems that are not open to the broader public. The data provides…

This book rigorously investigates the contemporary state of children's rights and the multifaceted challenges facing children, uncovering the complexities at their core.

On 7 February 2019, Helena Ursic-Vrabec defended her thesis 'Uncontrollable: Data subject rights and the data- driven economy'. The doctoral research was supervised by Prof. dr. S. van der Hof.

Researchers at Leiden study group behaviour. One of their findings is that when people make sacrifices for another member of their group, it is probably instinctive. Insights of this kind enable us to better understand and influence the social processes in a neighbourhood or company.

The Research Handbook on Labour, Business and Human Rights Law edited by prof. Janice Bellace of the University of Pennsylvania and ass. prof. Beryl ter Haar of Leiden University. The book is publisehd in Edward Elgars series on Human Rights.

On 18 June 2019, Peter Kempees defended his thesis 'Hard power and the European Convention on Human Rights'. The doctoral research was supervised by Prof. R.A. Lawson and Prof. H. Duffy.

When a physical system possesses symmetries, these are often accompanied by a representation of the symmetry group on a Hilbert space. Group representations on Hilbert spaces have been extensively studied.

Collaboration is increasingly common among teachers in schools. As such, teacher education should prepare prospective teachers to effectively interact with other teachers in different types of communities or groups.

On 15 June 2023, the book presentation for the ‘Panta Rhei: recht en duurzaamheid’ (Panta Rhei: law and sustainability) was held at the Oude Sterrenwacht in Leiden. The book provides an overview of research in the field of sustainability conducted at Leiden Law School and was compiled by Yvonne Erkens,…

Are you thinking about studying European and International Human Rights Law? Learn more and watch the videos.

The development of space resource activities is happening now. In the absence of a clear framework to govern these activities, there is a need to examine the concepts that are being discussed in order to ensure that they meet existing treaty obligations regarding on-orbit operations and space resource…

Terrorist groups adapt to environmental changes to maintain power. This project provides new insights by developing a theory of strategic target selection and using big data analytics and machine learning to test these hypotheses.

On Thursday 16 November 2017, Lalin Kovudhikulrungsri defended her doctoral thesis entitled ‘The Right to Travel by Air of Persons with Disabilities’. The supervisors are Professor P.M.J. Mendes de Leon and Professor A.C. Hendriks.

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…

The programme group Educational Sciences is located in the Faculty of Social and Behavioural Sciences of Leiden University near Central Station.

The programme group Clinical Neurodevelopment Sciences is located in the Faculty of Social and Behavioural Sciences of Leiden University near Central Station.

Our research primarily focuses on the early universe and its origins in theories that go beyond the Standard Model of particle physics.

The research group ‘Quantum and Society’ explores the boundary between quantum technology and science communication.

Op vrijdag 4 april 2025 organiseert de werkgroep Stedengeschiedenis een bijeenkomst bij de Rijksdienst voor het Cultureel Erfgoed onder de titel ‘Archeologie en de stad’. De studiedag is gratis en voor iedereen toegankelijk.

Understanding the evolving landscape of extremism in the 21st century.

Health Data Science Leiden University

The main topic of this PhD thesis is the Arakelov ray class group of a number field, an algebraic object that contains both the ideal class group structure and the unit group structure.

On Wednesday 13 December, Melanie Fink will defend her doctoral thesis ‘Frontex and Human Rights: Responsibility in “Multi-Actor Situations” under the ECHR and EU Public Liability Law’. The defence will take place at 10.00 hrs at the Academy Building of Leiden University, Rapenburg 73. The supervisors…

This dissertation is a collection of four research articles devoted to the study of Kummer theory for commutative algebraic groups.

Our research group Intelligence and Security, provides a diverse range of educational opportunities that combine theoretical foundations with practical applications in intelligence and security.

The War, Peace and Justice group unites scholars and practitioners to explore war dynamics, peace promotion, and justice’s role in conflict and global affairs.

On Tuesday 23 May 2017, Jasmina Mackic defended her doctoral thesis ‘Proving discriminatory violence at the European Court of Human Rights’. The supervisor of the research is Vice Dean and Professor of Public International Law Larissa van den Herik. A brief summary of her thesis is provided below.

People are less willing to give up an interest when in a negotiation situation than when they can do it of their own free will, as Leiden University psychologist Eric van Dijk discovered. Knowledge of this kind can be used by policy makers, for instance, to motivate people to adopt certain desirable…

The research group on Diplomacy and Global Affairs studies international diplomacy, international organisation, global, transnational, multi-level and comparative governance.

My work is motivated by the necessity to extend Standard Model of Particle Physics in order to explain three observed phenomena that this great theory fails to accommodate

The Violence and Violence Prevention research group at Leiden University focuses on understanding and preventing violence in modern societies. The group offers two key educational programmes: the Minor Violence Studies and the Governance of Violence specialisation within the Master’s in Crisis and Security…

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The research at The Metabolomics & Analytics Centre is centered around developing innovating analytical methods to enable metabolomics-driven systems biology in personalized health strategies.

This minor focuses on how our thoughts, emotions and behaviour are influenced by other people, and how we influence other people.

This paper explores the historicity of state and Buddhist accounts of the monk Xuanzang 玄奘 (602-664), arguing that in the reconstruction of Xuanzang’s life and career we ought to utilize the former to help adjudicate the latter.

The research project addresses the question how complaints in the voluntary youth care system are dealt with on the municipal level and what role (municipal) Children’s Ombudspersons play in this context, through qualitative research methods.

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.

To what extent are the rights to street children violated en how can their rights be protected?

Promotores: P. Stevenhagen, E. Fouvry (Univeriste Paris Saclay)

Promotor: Prof.dr. P. Stevenhagen & Prof.dr. K. Belabas (Univ. de Bordeaux)

On 7 and 8 October 2016 Leiden Law School received a visit from the external review committee, led by Mr Fred Hammerstein. This review committee reports on the results of research performed at the faculty and provides advice on how these results can be improved in the future. The assessment of the research…