Growing public backlash against international organizations (IOs) and attacks of national political elites on the rule of law increasingly challenge governance by IOs.

The Future of Multilateralism addresses current challenges and future perspectives of international and regional organizations. It aims to uncover how stable the foundations of global cooperation really are, particularly in the light of the latest unilateral and protectionist practices of international…

What contributes to the successes and failures of governance networks in small to medium-sized Western European host cities in attracting International Organizations?

Buitelaar argues that IOs micro-level discourse adapts imperfectly to macro-level changes, balancing adaptation to pressures with commitment to values.

A conference organized by Niels Blokker, professor of International Institutional Law and Ramses Wessel (RUG) to celebrate the 20th anniversary of the International Organizations Law Review.

In this article, Tom Buitelaar proposes a systematic framework for analyzing the impact of individual characteristics of peacekeeping leaders on the behaviour of field-level personnel in UN peacekeeping operations.

This workshop intends to bring together early-career researchers from different fields working on international organizations, to discuss methodological challenges together with peers and established scholars. A combination of a master class, keynote lectures, and roundtable discussions aims at providing…

As part of the events to mark the 100th anniversary of the International Labour Organization, the Department of Labour Law of Leiden University has organized a film evening together with Kijkhuis cinema in Leiden.

Since 1919 the International Labour Organization (ILO) has been promoting the rights of workers worldwide. On 7 February, Leiden University hosted the symposium celebrating the 100-year anniversary of the foundation of the ILO. Leiden emeritus professor of International Labour Law Paul van der Heijden…

This year, the International Institute of Air and Space Law (IIASL) attended the first days of the 41st Assembly of the International Civil Aviation Organization (ICAO).

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The organ in the Great Auditorium in the Academy Building has been played at walk-in concerts and University celebrations since 1998.

The Role and Effectiveness of the G20. In this article, published in The Changing Global Order part of the United Nations University Series on Regionalism book series, author Jaroslaw Kantorowicz discusses the evolution of the G20.

Great Auditorium Organ Foundation is a Public Benefit Organisation (Algemeen Nut Beogende Instelling, ANBI)

Students searched for a student project about internalization and the effects of nanomaterials in freshwater organisms. Open to BSc and MSc students and any timeframe.

The long term goal of the Biophysical Organic Chemistry/SSNMR group, headed by Prof. Huub de Groot, is to reach an understanding of structure, dynamics and functional mechanisms of membrane proteins and self-organized biological assemblies and to translate this knowledge into new concepts for nano-devices,…

Throughout all domains of life, from bacteria and archaea to eukaryotes, genomes adopt well-organized three-dimensional structures that can change in space and time to accommodate preferred transcriptional programs for environmental adaptation, the maintenance of cellular identity and differentiation…

For the third consecutive year, LACDR organized the international symposium on topology, Circuit Topology III, on November 29, 2023. The event aimed to bring together experts from diverse fields, including mathematics, computer science, physics, chemistry, and biomedical sciences, to discuss cutting-edge…

This volume challenges the idea that the development of ‘democracy’ is a story of rise and progress at all. It is rather a story of continuous but never completely satisfying attempts of interpreting the rule of the people.

Promotor: G.R. de Snoo

Treatment with special stem cells seems to be a good option for suppressing the immune system in organ transplants. Researchers are trying to learn from processes that take place in the human body during pregnancy.

How do leadership behaviour repertoires take shape in public organizations?

The research in the Biosyn group is focused on the design, synthesis and function of the four major types of biomolecules: nucleic acids, carbohydrates, peptides and lipids and hybrid structures thereof. These biomolecules and their derivatives are used in drug discovery and chemical biology, to develop…

Stars like the sun are born in large molecular clouds existing from gas and dust. During the formation process, the chemical composition of the material can be altered drastically by the changing physical conditions.

Charisma K. Lepcha (PI, Sikkim University), Pradyut Guha (co-PI, Sikkim University), Rajib Sutradhar (co-PI, Christ University Bangalore) and Erik de Maaker (Leiden University) have been awarded a two-year grant of USD 18.000 to conduct research on the impact of ‘green farming’ on the sensitive mountain…

Complex Organic Molecules (COMs) have been detected in objects across different stages of stellar evolution.

Hydrogen peroxide (H2O2) is an important bulk chemical that is used in various industrial processes. More than 95% of the H2O2 used in industry is made via the anthraquinone process during which a large amount of energy is going to waste.

My research focusses on site-specific compositional and performance practices of music for organ and electronics and their musical-spatial values.

Our in-house human skin equivalents contain all stratum corneum (SC) barrier lipid classes, but have a reduced level of free fatty acids (FAs), of which a part is mono-unsaturated. These differences lead to an altered SC lipid organization and thereby a reduced barrier function compared to human skin.…

The confinement of molecular catalysts in metal-organic frameworks has the potential to lead to significant improvements in selectivity, long term activity and catalyst stability.

Explore the MSc in International Politics at Leiden University: a one‑year programme focused on international conflict, crisis management, diplomacy and global cooperation.

Regenerative medicine is a new way of treatment that helps impaired cells, tissues, and organs work well again. We do this by repairing, replacing, or restoring cells, tissues, and organs after damage from illness or injury. This includes treating long-term diseases such as diabetes, kidney diseases,…

Mechanical forces are known to play an important role in bacterial colonies. In this dissertation, we study the self-organization at various stages of growing bacterial colonies, and focus on the mechanical effects of cell growth.

Organic amendments applied to agricultural fields can partially offset our carbon emissions to the atmosphere and improve the resilience of agriculture to the effects of climate change. Driving these benefits, however, are complex and poorly understood interactions between organic amendment properties,…

Understanding how chemical complexity emerges during star formation requires connecting molecular material preserved in interstellar ices with that observed in the gas phase after protostellar heating begins.

Bacteria often experience external challenges, such as changes in environmental conditions or attacks by bacteriophages.

The international legal order is in a process of transformation. But how transforms globalization the international legal order? This research programme provides a clearer framework to analyze this..

PhD defence

2026

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