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

The Multistakeholder Global Governance (MGG) Project is a four-year project which explores how far, and under what circumstances, multistakeholder constructions of global governance operate well, in terms of having capacity, effectiveness, and legitimacy.

The specialisation Global Conflict in the Modern Era of the master’s in International Relations at Leiden University engages you with the scholarly debates about global conflict today and in the recent past.

This thesis addresses questions on effectively using variational quantum circuits for machine learning tasks.

This thesis has shed light on some of the ways in which the local electrolyte composition can differ from the bulk and how these changes in the local reaction environment can determine the activity and/or selectivity of two important electrocatalytic reactions, namely, electrochemical CO2 reduction…

From fake news to COVID-19 conspiracies, debates about truth claims have become more prominent during the past decade. Taking a global, comparative perspective, the minor Disinformation and Strategic Communication in Global Media focuses on the broad spectrum of contested narratives subsumed under the…

Amid the many traditions of Leiden’s 3 October Festival, a relative newcomer is beginning to take hold: the Science Market. At market stalls, the people of Leiden could explore or even participate in Leiden’s research – performing an ‘operation’ in the street, for example.

The Institute of Security and Global Affairs (ISGA) in The Hague offers bachelor’s and master’s programmes, minors, and research in security studies, covering cybersecurity, terrorism, diplomacy and contemporary security challenges. Focus keywords: ISGA, bachelor, master, minors, research, security…

We prove a p-adic version of the work by Gross and Zagier on the differences between singular moduli by proving a set of conjectures by Giampietro and Darmon, who investigated the factorisation of a rational invariant associated to a pair of CM-points on a genus zero Shimura curve, obtained as the ratio…

Assuming everywhere good reduction we generalize the class number formula of Taelman to Drinfeld modules over arbitrary coefficient rings.

Promotor: Prof.dr. H.P. Spaink Co-promotor: Dr. B.E. Snaar

Jens Iverson, Assistant Professor of International Law and a Researcher in the Jus Post Bellum Project, defended his Ph.D. dissertation on 21 September 2017.

In photoactivated chemotherapy (PACT), a biologically active compound is caged by a light-cleavable protecting group.

The shift from response to recovery is now noticeable as the world moves past the paralyzing effects of the COVID-19 pandemic. This book explores responses to the pandemic by international, regional, and local institutions, multilateral action, and crisis prevention efforts at different levels of governance,…

Towards an international orientation in the field.

The specialisation Global Order in Historical Perspective of the master’s in International Relations at Leiden University focuses on examining the historical processes and practices in the making of global order.

The master's specialisation in Global Ethnography is all about your three-month ethnographic research project. Experienced scholars teach you in extensive courses and by individual supervision how to get to most of your research.

Are you thinking about studying Global Order in Historical Perspective? Learn more and watch the introduction video.

The Hague is the international city of peace, justice and security – making it the logical place for the Institute of Security and Global Affairs (ISGA) to reach partners from ministries, governments and NGOs with research into issues relating to security.

For many years, human rights have been considered a playing field in which states were the most important actors. In the present day society, this has changed as a consequence of globalization and the rise of multinational enterprises (MNEs). Protection of fundamental labor rights in global supply chains…

Technological advances have an impact on our daily lives. They have also been employed by governments to manage border security, especially at controversial border crossings. Fences, heat sensors, heat cameras, drones and other hi-tech equipment that are currently being tested collectively produce a…

Palaeography of an ancient nomadic writing culture

This Philosophy: Global and Comparative Perspectives bachelor's programme is unique. It offers comparative perspectives from around the world that will enable you to be part of the next generation of thinkers, someone studying and shaping philosophy for a globalised 21st century.

Do you like running? Then take part in the Leiden Science Run on The Leiden Science Run is a 4.44 km charity run at the Leiden Bio Science Park on 28 september 2019. In 2019 Leiden University will be 444 years old. This special birthday calls for a special celebration. That is why we have adjusted the…

Study information

This research will focus on the relationship between the musical structure and musical time in the performance of 19th century music.

The first year cohort of Leiden University College The Hague recently under took a local lesson which saw them collect 10200 pieces of plastic from their local communities. Of the total collected, 52% was plastic.

A warm welcome to the Graduate School of FGGA at Leiden University.

Much has been said regarding the global flows of information that are characteristic of modernity; it has been frequently stressed that these conduits are so deeply embedded that local or national environments may be imagined as having a global span. Thus, while we are now well aware that the imagination…

Come to the Night of Arts and Science in Leiden 's historic city centre on 17 September. You can enjoy music, interactive experiments, theatrical plays, lectures, modern dance, comedy and much, much more. Many of the activities are in English.

International trade has played a major role in defining the modern global economy. Trade, however, entangles the environmental pressures of economic sectors, giving the illusion of environmental improvements, while the opposite may be occurring.

This historical study argues that the Mandaean religion originated under Sasanid rule in the fifth century, not earlier as has been widely accepted. It analyzes primary sources in Syriac, Mandaic, and Arabic to clarify the early history of Mandaeism.

Study information, Online Experience

Which consumer groups post the greatest cost to public health and the planet through their food choices, and how can we use this fine-scale information to accelerate a sustainable dietary transition?

Quantum software is essential to make quantum technology work. Research centers QuSoft and aQa work together at the forefront of the Netherlands’ quantum software efforts. With the launch of the Quantum Software Alliance (QSA), this collaboration now scales globally.

Are you curious of how the university and the faculty work? Read more about that on this page.

This dissertation focused on computational methods based on first principles calculations using the Density Functional Theory (DFT) framework. Emphasis was laid on affordable methods that can provide a tradeoff between computational expense and accuracy.

The two-year master’s programme in Computer Science at Leiden University offers seven specialisations ranging from AI to Bioinformatics and Data Science. The programme combines excellent theoretical teaching with possibilities for applied work with industrial relevance.

The way people view the world is shaped by much more than just language. Culture, religion, history, art, and philosophy also play a role. At Leiden University, you'll research societies from around the world - past and present. You'll explore current themes such as migration, identity, media, and heritage,…

The way people view the world is shaped by much more than just language. Culture, religion, history, art, and philosophy also play a role. At Leiden University, you'll research societies from around the world - past and present. You'll explore current themes such as migration, identity, media, and heritage,…

The Aernout van Lynden Global Citizenship Award award is a recognition given by the LUC community. Each year a student who has demonstrated the qualities of active engagement, responsive and responsible participation in civic and/or community building, within and/or beyond LUC is presented with the…

The Aernout van Lynden Global Citizenship Award award is a recognition given by the LUC community. Each year a student who has demonstrated the qualities of active engagement, responsive and responsible participation in civic and/or community building, within and/or beyond LUC is presented with the…

Working on superconductivity, finding an exoplanet or learning how to program with Python. More than one hundred girls visited Leiden University on Thursday 13 February during the Girls in Science Day.