Actinobacteria are Gram-positive bacteria that have a complex multicellular life cycle and are well known for their ability to produce a wide range of bioactive natural products (NPs).

A difficulty of studies on chemical kinetics are the reaction time scales and detection of their intermediates.

Taking responsibility concerning colonial heritage and restitution is a pressing issue for countries and museums worldwide. On 23 and 24 May, a Leiden University interdisciplinary symposium will explore new perspectives as a basis for policies. Organising professors Carsten Stahn and Pieter ter Keurs…

No criticism is allowed in Turkey of the mass murder of Armenians that took place a century ago. PhD candidate Alaettin Carikci examined how contemporary artists, authors, film directors and museums have nonetheless found indirect ways of expressing their criticism.

On Wednesday 31 August 2022, the graduation ceremony of the BSc Security Studies took place. The ceremony was opened by programme director Daan Weggemans.

From 29 to 30 October 2024, the Kalshoven-Gieskes Forum (KGF) and the Grotius Centre for International Legal Studies had the pleasure of hosting an inspiring authors’ workshop in The Hague for the forthcoming Research Handbook, Victims' Rights under Public International Law, edited by Dr Robert Heinsch…

Impressions by Martin Küster, Master of Arts.

In this thesis, I study 1) metabolic alterations in tuberculosis related to wasting syndrome in human patients as well as in rodent and fish animal models. 2) effects of the mutation of the leptin gene on cachexia and diabetes in rodent and zebrafish animal models.

Leiden University is home to over a hundred specialists studying the Middle Ages and the Early Modern period. From 2017-2018 onwards, they will join forces to offer two new options for specialisation within existing MA programmes: Medieval Studies and Early Modern Studies.

Can SMILE, our multi-component intervention, which combines cognitive-behavioural therapy for insomnia, mindfulness, stress, and lifestyle components, improve sleep quality? Can it also improve mood and quality of life and prevent depression and anxiety in the long term?

Project TARGET aims to improve our understanding of gun violence in Europe and the relationship between gun violence and firearms trafficking.

Intelligent machines are going to make ethical decisions too. Should a self-driving car be allowed to slam into pedestrians to save its passengers from a head-on collision? Should a negotiation app be able to detect stress in your opponent’s voice? And who makes these decisions: the user, the system’s…

This unique, interdisciplinary Master focuses on the interaction and gaps between the “law on the books” and the “law in action.” It combines theories and methods from both law and the social sciences to the practical operation of law. The core curriculum equips students with the conceptual approaches…

This summer school focuses on the emergence of sexual orientation, gender identity (SOGI) and intersex issues in different areas of international law, such as human rights law, refugee law, international economic law, and international criminal law. Details on the application for this edition are available…

Leiden University College The Hague (LUC) is the international Honours College of Leiden University and offers an innovative Liberal Arts & Sciences undergraduate programme to highly talented and motivated students from all over the world.

At the end of March, the Voice of the Child conference launched three unique films on children’s hearings in family law courts around Europe, which can be used for the training of (future) judicial professionals on child-friendly justice. As part of this project, researchers from Leiden University developed…

A team from Leiden University Law School participated at the 30th edition of the Willem C. Vis International Commercial Arbitration Moot Court competition and received an honourable mention for the Werner Melis Award for Best Memorandum for Respondent.

The US attack and the arrest of Venezuelan President Maduro have raised questions worldwide. Two Leiden experts in international law, Anna Marhold and Jens Iverson of the Grotius Centre, told media outlets that this constitutes a violation of international law.

On December 5, a group of thirty students of the Master in European Law visited the headquarters of Eurojust in The Hague.

Starting 1 July 2020, Pieter Tops will hold the special chair Organised and Subversive Crime Studies. The chair will be hosted by the Institute Security and Global Affairs (ISGA) at Leiden University's Faculty Governance and Global Affairs. Pieter Tops is a lector at the Police Academy. He conducts…

Natalia Grincheva (2020). Museum Diplomacy in the Digital Age. London: Routledge. ISBN 978-0-8153-6999-8, 164 pp., £27.99 (paperback).

A fragment of a human skull from the collection of the Dutch National Museum of Antiquities (RMO) and a decorated bison bone, both from the North Sea bed, are rare finds from the end of the last Ice Age. The finds are 13,000 years old and, as such, form the earliest known modern human from the Netherlands…

What effect do trends in the art world have on the formation of museum collections? University lecturer Martin Berger wants to answer that question in his research within the Museums, Collections and Society project, which asks ethical questions about the origin of collections.

On January 7th Minister van Engelshoven of Education, Culture and Science of The Netherlands announced that the project Island(er)s at the Helm: Co-creating sustainable and inclusive solutions for social adaptation to climate challenges in the (Dutch) Caribbean is one of two projects awarded with funding…

In this thesis we have discussed several parameters that affect the electrochemical conversion of enviromentaly harmful molecules such as nitrates and carbon dioxide to more valuable and less deleterious compounds, in order to cast light onto the mechanism of the reaction to achieve an efficient and…

On 10 June 2021, Merinda Stewart defended her thesis 'Freedom of Overflight: A Study of Coastal State Jurisdiction in International Airspace'. The doctoral research was supervised by Prof. P.M.J. Mendes de Leon en Prof. J.J. Rijpma.

Promotor: M. Ubbink, Co-promotor: G. Siegal

With the recent rise and fall of IS, academics and policy makers around the world are expressing concerns about the fate of children of former foreign fighters. Will they follow in their parents’ footsteps? In this paper, Layla van Wieringen, Daan Weggemans and Marieke Liem argue that in light of this…

How do educational philosophies, discourses and practices spread around the globe, and how are they transformed and adapted locally?

The main aim of my Ph.D. thesis is to further explore the value of using early developing zebrafish larvae (up to 5 dpf) as a model to study anxiety-like behaviour and their pharmacological modulation with drugs.

This November, Leiden Jewish Studies Network has presented the Best Thesis in Jewish Studies award to a highly talented Leiden graduate, Lotte-Sofie Groenendijk, and awarded an honourable mention to Nasreen Javanjoo.

To what extent are, can, and should, human trafficking and human smuggling be(ing) seen as interlinked phenomena? What are the consequences of seeing the phenomena as either distinct or interlinked for the way in which migrants crossing intra-Schengen borders are treated.

This page features an overview of relevant lectures, publications and conference papers.

On Friday 7 March 2025 Adam Knight successfully defended a doctoral thesis and graduated.

The NYU Abu Dhabi Humanities Research Fellowship for the Study of the Arab World (HRF) invites early-career scholars who wish to contribute to the vibrant research culture of NYUAD’s Saadiyat campus to apply for a residential postdoctoral fellowship, starting September 2026.

This autumn Leiden University is launching eight new MOOCs (Massive Open Online Courses) that are available free to the general public. You can follow courses on the theory of evolution, mindfulness, political economy, international law, music, cultural heritage or archaeology.

On Tuesday November 25, 2025, Prof. dr. Sarah Cramsey traveled with students from her masters seminar on “New Approached to the Holocaust in Central and Eastern Europe” taught at the History Institute to Amsterdam for a unique opportunity. There, Ms. Lotte Sophie Groenendijk, an alum of the History…