LCD screens use liquid crystals which have a high degree of order, even though they form a fluid. A new theory maps out the interplay between order, temperature and symmetry. Publication in Physical Review X.

CFP: Two-day PhD/ Research MA masterclass Feminist Theory with and around the work of Prof. dr. Lynne Huffer organised by the OZSW in cooperation with NOG

Climate change is made up, the secret services murdered Pim Fortuyn and JFK, and the moon landing was a fake show. Conspiracy theories are of all times, providing sensation and entertainment, but also unrest and fear. The corona pandemic is new fuel for conspiracy theorists who set fire to 5G masts,…

What can Robotics and AI bring to archaeological theory and practice? In return, how can archaeology contribute to the developments in robotics and AI research? Colleagues tackled these questions at an event organised by the Faculty of Archaeology and sponsored by SAILS.

Following a special donation, the Stichting Pro Juventute foundation is facilitating a new special chair in Educational Theory and Law. Through the chair, Pro Juventute hopes to realise optimum child protection from a coherent legal and educational perspective.

This thesis explores Breaking of Ensemble Equivalence (BEE) in random graph models by examining the spectral properties of adjacency matrices. The goal is to identify spectral characteristics that differentiate random graph ensembles, enhancing the understanding of complex network structures and beh…

In this article, Jasmijn Boeken, explores in which ways the defining characteristics of the different zones can be found in the digital sphere.

Ten years after its introduction, the controversial idea of Erik Verlinde on gravity is still a hotly debated topic, and is still surrounded by a cloud of scepticism. Scepticism in which the media have played a major role, theoretical physicst Koenraad Schalm says in an article by NWO. ‘The media simply…

What is the origin of educational ideas, e.g., the idea that intervention in infancy has long-lasting effects on development.

The goal of this book is to place architectural studies, in which people’s interactions with each other and material resources are key, at the crossing of both landscape studies and material culture studies, where it belongs.

‘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 dissertation provides a formal description of the relationship between diatopic/diachronic micro-variation and phonologization through analysis of the phonetic/phonological properties of unstressed vowel reduction and vowel insertion in two Northern Italian dialects.

Promotor: W.Th.F. den Hollander Co-Promotor: F.M. Spieksma

This dissertation shows that dialogical logic constitutes a powerful and flexible general framework for the development and study of various logical formalisms and combinations thereof.

Promotor: S.J. Edixhoven

This dissertation provides crucial but as yet missing empirical data on the tone accent opposition in the so-called

Organic molecules in interstellar space are important as they influence the structure of galaxies and star formations. Studying catalytic processes in space allows us to understand how molecular species are formed and chemically evolved in the interstellar medium and solar system objects.

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.…

On Thursday 23 November, Professor Betty de Hart delivered the lecture ‘Exploring the Legal Archive on Race: Methodological Challenges’ as part of the lecture series ‘Reconsidering the Socio-Legal Gaze’ organized by the Van Vollenhoven Institute. Over 40 people attended the lecture, held online due…

Promotor: P. Stevenhagen, Co-promotor: R.M. van Luijk

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

Promotor: Prof.dr. A. Achucarro, Co-Promotor: J.W. van Holten

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.

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

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.

Jelle van Buuren, Assistant Professor at the Institute of Security and Global Affairs at Leiden University, can be heard in the latest Podcast of Wetenschap.nu.

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…

Promotor: Prof.dr. P. Stevenhagen, Jan-Hendrik Evertse, Co-promotor: Pascal Autissier

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…

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

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…

Dr Anouk Goemans has been appointed professor by special appointment of Youth Services and Child Protection from an Educational and Legal Perspective as of 1 November 2024. This chair is funded by the 'Stichting Steunfonds Pro Juventute' support fund foundation and serves as a bridge between the Department…

Professor Edwin Bakker, director of the Centre for Terrorism & Counterterrorism, released his new book “Terrorism and Counterterrorism Studies: Comparing Theory and Practice”, published by Leiden University Press.

The most recent edition of the journal ‘The Theory and Practice of Legislation’ contains a contribution by Jelle But, Demy Jongkind and Wim Voermans.

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…

In this thesis we study the landscape of gravitational models which modify GR by introducing an additional scalar degree of freedom (d.o.f.) to source Cosmic Acceleration.

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

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…

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…