How do commissions of inquiry operating in conflict situations utilize international law, and how can inquiry findings be utilized by other bodies belonging to the international legal community?

Do you have questions about the Master’s specialisation Astronomy and Instrumentation? Please contact us.

Erik de Maaker, B. Ramila, Maaike Feitsma, Mayke Groffen, Ellen Haeser, Rachel Lee, M. Karthika, Leonie Sterenborg and Sanne van den Dungen

Industrial Ecology

TRIXY is a national Center of Expertise, in which clinical professionals and expert researchers work together to improve knowledge and clinical care for children with X and Y chromosome trisomies.

Constitutional and administrative law covers a broad area of law. It provides the rules with which issues in society can be solved by government authorities.

Drawing on insights from past and contemporary scholars and world leaders, the report explores the concepts of a new social contract, a new global deal, and networked and inclusive multilateralism introduced recently by Secretary-General António Guterres to help the United Nations better grapple with…

How does the development of digital technologies impact society, and law/regulation within that society?

This article presents two related arguments. First, the limits of doctrinal analysis cut deeper than many EU lawyers realise. Most would probably accept that legal doctrine does not determine every legal dispute, but lawyers studying EU institutional balance often still assume that it can be deduced…

Effects of age and social anxiety

On 3 December 2019, Hanna Bosdriesz defended her thesis 'Furthering the fight against impunity in Latin America: the contributions of the Inter-American Court of Human Rights to domestic accountability processes'. The doctoral research was supervised by Prof. L.J. van den Herik and Prof. M.A.H. van…

The authors systematically search and review relevant definitions of Security by Design (SbD) in comparison with Privacy by Design (PbD).

On 8 July 2020, Andres Sarmiento Lamus defended his thesis 'The Proliferation of Dissenting Opinions in International Law'. The doctoral research was supervised by Prof. L.J. van den Herik and Prof. Y.A.A.S. Radi (UCLouvain).

How can the importance of the image in late medieval spirituality be understood in the context of the love mysticism inspired by the imagery of the Song of Songs?

Promotores: Prof.dr. C.A.M.J.J. van den Hondel, Prof.dr. V. Meyer (Technische Universität Berlin)

Governing Cyberspace: Behavior, Power and Diplomacy is based on a selection of papers presented during The Hague Program for Cyber Norms' inaugural conference Novel Horizons: Responsible Behaviour in Cyberspace from 5-7 November 2018 in The Hague. The volume is edited by Dennis Broeders and Bibi van…

Cyber-attacks, privacy-related problems or failures in functioning: many technologies that are used every day have security issues that are solved when the software is already in use. An interdisciplinary project, in which Olga Gadyatskaya, Harry Wijshoff, Alex Uta and Kristian Rietveld from the Leiden…

Information for prospective, current and international students

Insect egg development in a warming world: the eco-evo-devo of embryonic developmental time: What is the genetic basis of developmental time?

Petra van der Bekerom, Joris van der Voet, and Johan Christensen, three assistant professors at Leiden University, conducted a large-scale survey experiment about whether citizens are more negative about failing service delivery than private organizations.

The 80,000 visitors to the Liberation Day Festival in The Hague on 5 May can learn about 444-year-old Leiden University at a range of interactive events on Malieveld and in the Dutch Parliament.

The project contends that in Late Antiquity (c. 300-500 AD) both the figure of Christ and those of Pythagoras and Socrates underwent a parallel process of metamorphosis facilitated not least through an intellectual exchange between Christian theologians and Neoplatonic philosophers. From Iamblichus…

The Latin America and Caribbean Security and Intelligence Network (LACSIN) brings together scholars, practitioners, government agencies and the diplomatic community to develop novel and interdisciplinary approaches to addressing key areas of security and intelligence in Latin America and the Caribbe…

This thesis consists of two main parts. The first part (Chapters 2 and 3) deals with a class of Markov process called Quasi-Skipfree (QSF) processes.

Do you have questions about the Astronomy master’s programme? Please contact us.

The Europa Institute of Leiden University is one of the oldest academic institutes specialised in the law of the European Union and the European Convention on Human Rights; it was established in 1957, the same year as the European Economic Community itself.

The rise and fall of the cesspit in an urban context

The project entails research by international comparison into the effects of commercialisation in heritage management on the academic relevance and quality of the results of work that is essentially applied research. The research is carried out by Prof. dr. W.J.H. Willems and dr. M.H. van den Dries…

To get an idea of the science communication products and research that is possible, a few examples of student projects of recent years are shown below.

In this dissertation, matching, entropy, holes and expansions come together. The first chapter is an introduction to ergodic theory and dynamical systems.

A cultural sequence of western coastal French Guiana from 5000 BP to present

Do you have questions about the master’s specialisation Astronomy Research? Please contact us.

When and how does social anxiety develop? How can it go astray in some adolescents? How can we help troubled young people to attend school regularly and return to a normal developmental pathway?

Promotors: Prof.dr. P.J. Punt, Prof.dr. C.A.M.J.J. van den Hondel

Do you have questions about the Master’s specialisation Astronomy and Data Science? Please contact us!

Do you have questions about the Astronomy master’s programme? Please contact us.

Do you have questions about the Master’s specialisation Astronomy and Education? Please contact us.

Do you have questions about the master’s specialisation Astronomy and Cosmology? Please contact us.

How do you combine an academic career with parenting young children? For many early‑career researchers, this is a daily challenge: from lack of sleep and unpredictable childcare to publication pressure and implicit expectations within academia, particularly during the early years of parenthood. Questions…

What is the provenance of introduced populations?

Do you have any questions about the Industrial Ecology master’s programme? Please contact us! It is also possible to schedule a call with our study advisors or one of our students. Moreover, we have online Walk-In hours every third Friday of the month.

PhD defence

Conference

Research Network Institute for History 2026-2029

Reijer Passchier universitair docent Staatrecht in Leiden en hoogleraar Digitalisering en de democratische rechtsstaat aan de Open Universiteit, presenteerde op 11 februari zijn bevindingen over het gebruik van digitale systemen bij de uitvoering van wetten, aan de Vaste Kamercommissie Digitale Zaken,…

Sinds 1973 vindt in december jaarlijks een congres plaats voor staatsrechtjuristen: de zogeheten Staatsconferentie. De conferentie vindt bij toerbeurt plaats op een locatie die is gekozen door één van de Nederlandse rechtenfaculteiten.

Uit onderzoek van Dagblad Parool, blijkt dat de Amsterdamse sportschool Saint & Stars zich mogelijk schuldig maakt aan arbeidsuitbuiting. ‘Als het kan worden bewezen komt je er niet makkelijk mee weg’, zegt Gerard Boot, hoogleraar Arbeidsrecht.

Reijer Passchier, universitair staatsrecht en hoogleraar digitalisering en de democratische rechtsstaat aan de OU, waarschuwt in HP/De Tijd hoe weinig controle we werkelijk hebben over kunstmatige intelligentie, terwijl machtige bedrijven steeds meer invloed krijgen op onze democratische samenleving…