An Honours Class about the ostensibly unrecognisable worlds of insular Southeast Asia teaches students a fundamental piece of wisdom:

The brains of adolescents react more responsively to receiving rewards. This can lead to risky behaviour, but, according to Leiden University research, it also has a positive function: it makes learning easier. Publication in Nature Communications.

This article presents the findings of an explanatory study into the perceptions of Dutch Muslims in The Hague concerning pre-emptive counter-extremism and de-radicalisation policies.

According to the amyloid cascade hypothesis, accumulation of beta-amyloid (Aβ) peptides initiates the pathological cascade in Alzheimer's disease (AD).

This article examines to what extent bureaucratic responsiveness depends upon the source, the content and the salience.

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

This book brings together phonologists working in different areas to explore key questions relating to phonological primitives, the basic building blocks that are at the heart of phonological structure and over which phonological computations are carried out.

Understanding the formation and evolution of planetary systems is one of the most fundamental challenges in astronomy. To directly image and study young exoplanets and the circumstellar disks they form from, dedicated high-contrast imaging instruments are built.

On the 12th of December, Eleanor Dutton successfully defended her doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Eleanor on this achievement.

Commagene in its Local, Regional and Global Hellenistic Context

Argumentation and rhetorics is the study of how we convince people verbally. In other words, what do people say and how do they say it?

Galaxies in the local Universe fall into two main categories of spirals and ellipticals. In this Thesis, we explore the structural evolution of galaxies into this bimodal distribution.

This volume investigates how urban growth and prosperity transformed the cities of the Roman Mediterranean in the last centuries BCE and the first centuries CE, integrating debates about Roman urban space with discourse on Roman urban history.

This article aims to provide a coherent foundation for empirical studies of interpersonal discussion on risk.

Promotor: J.W.M. Frenken

Mycorrhizas are symbiotic associations between soil fungi and most plant species.

Leiden psychologist Wilco van Dijk and communication scientist Jaap Ouwerkerk of VU University Amsterdam published a book about the emotion Schadenfreude. The authors describe what the emotion Schadenfreude really is, when people experience the emotion, and what role it plays in social relations.

This study interrogates contemporary and historical uses of barbarism, arguing that barbarism also has a disruptive, insurgent potential.

The Hague Journal of Diplomacy (HJD) is the world’s leading research journal for the study of diplomacy and was founded in 2005. The journal is published by Brill.

Bert Fraussen and Valérie Pattyn theoretically contribute to the existing literature on policy advice by drawing inspiration from niche theory.

The Leiden Institute of Advanced Computer Science (LIACS) of Leiden University proudly establishes the Blaise Pascal chair. The chair applies for one year and is meant to strengthen the cooperation of the Leiden computer science research with foreign institutes.

It is widely known that conflict parties engage in ceasefires for a variety of reasons, but how do these reasons relate to the military and political aspirations of conflict party leaders?

This dissertation investigates the fabric and the infrastructure of contemporary artistic production.

Throughout history, a large portion of the world's population has lived under imperial rule. Although scholars do not always agree on when and where the roots of imperialism lie, most would agree that imperial configurations have affected human history so profoundly that the legacy of ancient empires…

This research focuses on a historical/social analysis of a selected corpus of novels from modern Turkish literature which have the common theme of migration from Anatolian towns and villages to Istanbul, and the immigrants’ struggle in this city against various exclusion mechanisms.

Syntacticians study how words combine into larger units (phrases and sentences) in human languages and how the combinatorial possibilities determine word order and grammatical relations between parts of a sentence.

Galaxies form and evolve through close interaction with their surroundings. As a result, the heavy elements ('metals') that are synthesized in stars, are found both inside and outside galaxies.

Zeger van der Wal, Professor by special appointment Ien Dales Chair at Leiden University, and Mehmet Akif Demircioglu, Assistant Professor ar the Lee Kuan Yen School of Public Policy, researched the effects of ethical culture and ethical leadership on realized innovation.

Global Transformations and Governance Challenges (GTGC) at Leiden University aims to advance knowledge and practice on how we govern – and could govern – major world-scale changes in contemporary society. These global transformations include hegemonic and other geopolitical shifts, ecological changes,…

Irna Hofman defended her thesis on 10 January 2019.

This book concentrates on the regulation of political parties in the EU post-communist democracies, and on Bulgaria, Croatia, the Czech Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Slovakia, Slovenia and Romania, in particular.

A monthly seminar on complex networks, aimed at scientists from all disciplines.

The Leiden Institute of Advanced Computer Science (LIACS) is a centre of excellence for multidisciplinary research and education in computer science and artificial intelligence (AI).

Representations of violence are often said to generate cathartic effects, but what does “catharsis” mean? And what theory of the unconscious made this concept so popular that it reaches from classical antiquity to the digital age?

My work focuses on a class of astronomical objects called protoplanetary disks.

Promotor: J. Zaanen, Co-Promotor: V. Juricic

Nonadiabatic energy transfer from the translational motion (T) of a molecule impinging on metal surface to the metal’s electrons may determine whether the molecule can lose enough energy to adsorb or react.

Violence during war often involves upswings and downturns that have, to date, been insufficiently explained. Why does violence at a particular point in time increase in intensity and why do actors in war decrease the level of violence at other points? Duyvesteyn discusses the potential explanatory variables…

Experience, Narrative, and Criticism in Ancient Greece pursues a new approach to ancient Greek narrative beyond the taxonomies of structuralist narratologies.

This volume provides a sample of the most recent studies on Spanish-English codeswitching both in the Caribbean and among bilinguals in the United States.

Marc Koper’s research focuses on electrocatalysis and electrochemical surface science for sustainable energy and chemistry. Reactions of interest are the redox reactions of the oxygen/hydrogen cycle (water oxidation, hydrogen evolution), the carbon cycle (reduction of carbon dioxide, oxidation of small…

In astronomy, the interpration of observations and measurements plays a crucial role: we rely purely and fundamentally on the information that reaches us as observers. And 80% of all matter in the universe is undetectable directly.

This paper aims to understand the most common underlying problems causing strategic surprise in the context of the European Union.

The arrival of Columbus to the Caribbean in 1492 marked a milestone in world history. In both the European and the indigenous world, a set of economic, political and hierarchical networks and relations were defined, structured and changed. These changes affected the indigenous population at different…

Reasserting America in the 1970s brings together two areas of burgeoning scholarly interest.

Design of a Linguistic System for Interstellar Communication Based on Logic

Oxford University Press has published a revised and expanded edition of The Morphology of Dutch (first edition published in 2002).

The research group Science Communication and Society aims to understand how science communication works to improve the interaction between science and society. Central themes are ‘Bridging the gap between experts and the general public’ and ‘Evaluating Science Communication’.

The main question addressed in this thesis is how we can best conceive the contrast between a priori and empirical truths.

Promotor: Peter Stevenhagen