There are a number of problems in philosophy that seem to share a similar possible solution: 'Why do promises and contracts bind?', 'Why ought citizens and judges obey the law?' and 'Can we realize the gains to be made from cooperation?'. All three problems (as well as some others) share a possible…

‘What I find most alluring about soil life is that you can steer it,’ researcher Martijn Bezemer of the Institute Biology Leiden (IBL) reveals. ‘You can ask: What do you want? And then I can transform the soil into something you need. At least, that is what we thought.’

This thesis contributes to studying primordial cosmology theories and their detectability in future observations.

This thesis is dedicated to the exploration of the primordial dark ages: unknown physics during the earliest stages of the Universe’s expansion that have not yet been directly probed by observations. Cosmic inflation is a burst of exponential expansion of space after the “Big Bang”.

This semester, Ingrid Leijten is appointed as a guest professor at the Friedrich Alexander University Erlangen-Nuremberg (FAU).

On 11 February 2016, the Hazelhoff Centre for Financial Law organises its tenth Hazelhoff Guest Lecture. The lecture ‘A future without banks?’ will be given by Wim Mijs, Chief Executive of the European Banking Federation (EBF) and alumnus of Universiteit Leiden.

Promotor: F. Arbab, R. De Nicola, Co-Promotor: M. Tribastone

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.

Promotor: A. Doelman, Co-promotores: P.J.A. van Heijster; A. Zagaris

Artin L-functions associated to continuous representations of the absolute Galois group G_K of a global field K capture a lot of information about G_K as well as arithmetic properties of K.

In the spirit of 'unity in diversity', our objective is to promote insight into and appreciation for the wonder that the same physical laws and mathematical concepts apply to the whole of nature, from the largest to the smallest energy and length scales. We strive for the application of abstract theoretical…

Jelle van Buuren, Assistant Professor at the Institute of Security and Global Affairs, appeared as guest on VICE to discuss the usefulness of recent ban on QAnon.

Jorrit Kelder, Senior Research Grant Adviser at Luris with close associations with Faculty of Archeology Classical and Mediterranean research, has been invited to become Guest Scholar in a major research programme at the Getty Research Institute, exploring the relations between the Greek / Roman world…

This thesis studies operator-algebraic aspects of subproduct systems, a generalization of product systems of Hilbert spaces.

The overarching clinical aim of this thesis was to improve pharmacological pain management by characterizing the pharmacodynamics of analgesics.

Using mathematics to determine whether scientific results are significant or not. Peter Grünwald, full professor of Statistical Learning at the Mathematical Institute (MI) and senior researcher in the Machine Learning group of Centrum Wiskunde & Informatica (CWI), has been awarded an ERC Advanced Grant…

On Wednesday 5 October the Europa Institute hosts a special guest lecture by Human Rights Defender Mr. Rasul Jafarov from Azerbaijan.

This thesis examines the complexity of legislative decisions within the EU, with a specific focus on the Council of the EU.

An interdisciplinary cultural analysis of how the Hindustani double migration informs contemporary processes of identification and problematises the juxtaposition of tradition and modernity.

Heterogeneous catalysis is one of the fundamental processes of modern life, being common in industrial refinery and hydrogen vehicles, all the way to the living cell. The dissociation of H2 on Cu(111) is an important benchmark system for studying heterogeneous catalysis, with a large and varied amount…

Every summer, Leiden University is the setting of dozens of summer schools in which professionals and students can receive extra training on a specific topic within a short space of time. We took a look at a summer programme on extremism. ‘A recruiter for al-Qaeda said that I could change the world.…

To an algebraic curve C over the complex numbers one can associate a non-negative integer g, the genus, as a measure of its complexity.

In this thesis,

Promotores: P. Stevenhagen, E. Fouvry (Univeriste Paris Saclay)

Promotor: Prof.dr. P. Stevenhagen & Prof.dr. K. Belabas (Univ. de Bordeaux)

The Encyclopedia of Global Human Migration provides a complete exploration of the prominent themes, events, and theoretical underpinnings of the movements of human populations from prehistory to the present day.

Political scientists Huib Pellikaan and Niels van Willigen (Leiden University) use and elaborate on the theoretical insights from game theory in order to understand nuclear security in changing environment. Now that the relations between the US and Russia have deteriorated and smaller nuclear states…

In ‘Dimensions of Free Speech’, Devrim Kabasakal Badamchi (Leiden University Institute of Political Science) offers a new theoretical framework for free speech by critically analysing the major justifications for free speech. Kabasakal Badamchi argues for a justification: namely the double-grounded…

Jos Gommans is guest curator of the exhibition

On the 28th of January 2019 Beryl ter Haar gave a guest lecture at Tbilisi State University organised by the European Law School Association (ELSA). The lecture addressed issues of EU fundamental rights, more particularly it was on the freedom to conduct a business versus several labour rights, among…

'The way we consume information has changed dramatically over the past fifteen years. You're no longer just a receiver; you participate, create, and spread information. So why not use that to improve society?'

How do you make lobbying and rhetoric both challenging and understandable for high school students? Professor Jaap de Jong found the answer in climate activist Greta Thunberg. Together with his colleague Arco Timmermans, he developed a digital guest lecture on how to present a convincing story.

During the guest lecture on 9 February, Jaap de Hoop Scheffer, Rob de Wijk and Frans Osinga discussed the situation in Ukraine and Taiwan. The crises in eastern Ukraine and the increasing tensions around Taiwan highlight the challenges the West faces in deterring aggression in the new era of key dynamics…

On Thursday 10 November, the Night of the Lobbyist was held. During this public event, organised by Leiden University and the Public Affairs Academy, many insights were shared regarding the different aspects of lobbying and the diversity of the world of the lobby.

Can a robot perform a religious ritual just like a monk? And what exactly is a religious ritual? Robots and religion seem to be two different subjects, but according to university lecturer Elpine de Boer, both can make us think about what it means to be human and what we consider to be of value. Together…

On the occasion of International Human Rights Day, 10 December, a special guest lecture was given by Ms. Francesca Albanese, the UN Special Representative on the Occupied Palestinian Territories.

On Tuesday 4 March, Marie-Cécile Rouillon, Coordinator on the Rights of the Child at the European Commission came to give a guest lecture to students of the Advanced LLM in Children’s Rights as well as the Jeugdrecht master’s programme.

At the invitation of Professor Afshin Ellian, Prime Minister Rutte today gave a guest lecture to first-year law students as part of the course Inleiding recht (Introduction to Law) which is taught by the Deparment of Jurisprudence.

On 26 February 2021, Clara van Dam was invited by Dr Oana Stefan to give a guest lecture for students of King’s College London in the elective course on ‘Law and New Modes of Governance in the European Union’.

During the final meeting of the Thesis Project on 10 February at 'Pand Zuidwest' in The Hague, several students presented their theses. Students from different disciplines conduct research on formulated practice-oriented challenges in The Hague South-West. 'The Thesis Project provides a connection between…