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 dissertation presents the results of the importance of creativity for ICT-students of Dutch universities of applied sciences (in Dutch: hogescholen), and the functioning of training courses that aim to promote creative abilities is highlighted.

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.

Can furan-based resisn be degraded by microbial enzymes in combination with mild pre-treatment?

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

Since Russia’s invasion of Ukraine in February 2022, the European Union (EU) and its Member States have adopted wide-ranging legal and political measures to support Ukraine in its struggle.

This academic year 49 promising international students will start their master’s degree here thanks to a Leiden University Excellence Scholarship (LExS). The students, all from outside the EU, were welcomed in a special ceremony on 5 September. Who are they?

The IBL's staff participates in the various boards, councils and associations, where they meet and exchange ideas on the continuous institute's improvement.

The Child Law Department of Leiden University and Defence for Children kindly invites you to the fourth Jaap Doek Children’s Rights Thesis Award Ceremony and the official launch of the book ‘The United Nations Convention on the Rights of the Child. Taking Stock after 25 Years and Looking Ahead’ (Brill…