Studies on representative bureaucracy have often confirmed the positive performance effects of bureaucracies mirroring the demographic characteristics of their clientele. However, little is known about the underlying individual level mechanisms leading to these outcomes.

Plant exudates appeared long time ago in the history line of life in the early Devonian. They are typical saps produced by specialized cells.

On 21 October 2021, Frederik Behre defended the thesis 'A European Ministry of Finance?'. The doctoral research was supervised by Prof. S.C.G. Van den Bogaert.

Pre-University Classes are intended for high school students who want to do more than is offered in the regular school curriculum. In the classes, students follow special lecture series and through that are introduced to the world of science.

On 7 December 2021, Georgina Kuipers defended the thesis 'Beschadigd vertrouwen'. The doctoral research was supervised by Prof. W. den Ouden and Prof. M.A. van der Steen (EUR).

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…

For many system in statistical physics the microcanonical and canonical ensemble are equivalent in the thermodynamic limit, but not for all.

What issues arise in the changing landscape of privacy, identity and data protection?

In populations with a seed-bank, individuals can temporarily become dormant and refrain from reproduction until they can become active again. The repository of all dormant individuals in the population is called the seed-bank. Seed-banks are observed in many taxa, including plants, bacteria and other…

This dissertation is organised into three parts, each addressing a distinct research area related to Gibbs measures.

Summer schools and seed funding calls are just two of the many Una Europa opportunities for researchers and teachers at Leiden University and LUMC.

A New Technology-Based Firm (NTBF) is a significant enabler of job creation and a driver of the economy through stimulating innovation.

The Heritage and rights of indigenous peoples focuses on the living heritage of indigenous peoples and its safeguarding, connecting the past and the present in local communities.

Animal Sciences’ contribution to the Bioactive Molecules research theme includes research on molecules from natural sources, such as plants, insects, and snake venom, with the aim to identify novel anti-cancer, anti-inflammatory, anti-microbial, and anti-diabetic agents.

In today's volatile market environments, companies must be able to continuously innovate. In this context, innovation does not only refer to the development of new products or business models but often also affects the entire organization, which has to transform its structures, processes, and ways of…

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…

Promotor: Prof.dr. J. den Hertog

Organisms often need to adapt more efficiently and devise new strategies for surviving difficult ecological circumstances.

This article presents a systematic review aiming to provide a comprehensive overview of cybersecurity training methods and assess their effectiveness.

An examination of rationales and core practices of first-grade Worldview/Religious Education teachers focused on their students' philosophical identity development

Team Economic and Social History

The Behavioral Public Administration Lab (BPA Lab) conducts behavioral science to generate, share, and apply insights about human behavior to improve governance, policy, and management in the public sector.

We have studied shape with a particular focus on the zebrafish model system. The shape is an essential appearance of the phenotype of a biological specimen and it can be used to read out a current state or response or to study gene expression.

This anthology contributes to a historically grounded understanding of the complex relationship between Christian missions and the roots of humanitarianism and its contemporary uses in a Middle Eastern context.

In 'Dutch Atlantic Connections, 1680-1800', Gert Oostindie and Jessica V. Roitman, both of the Royal Netherlands Institute of Southeast Asian and Caribbean Studies (KITLV) and also affiliated with the History Institute of Leiden University, assemble an internationally acclaimed selection of authors,…

This dissertation takes an important step in understanding the phenomenon of non-take-up of social support and what it means for contemporary social policies.

Promotor: H.J. van den Herik, B.R. Katzy, Co-promotor: K. Sailer

Animal Sciences’ contributions to the Development & Disease research theme include the mechanisms and evolution of embryonic development, the development of cognitive mechanisms, and animal models for understanding mechanisms of human disease.

This book brings together contributions on topics related to the Dutch EU Presidency Agenda 2016 from a number of scholars who are affiliated with Leiden University.

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

Cognitive psychology is the study of cognitive functions such as attention, memory, consciousness, emotion, language and action control. The goal is to understand the complex relationships between brain, mind and behavior.

Promotores: W. Th. F. den Hollander, M.O. Heydenreich

On 3 September 2019, Ilektra Antonaki defended her thesis 'Privatisations and golden shares: Bridging the gap between the State and the market in the area of free movement of capital in the EU'. The doctoral research was supervised by Prof. S.C.G. Van den Bogaert.

Within Una Europa, academic collaboration takes place in interdisciplinary Self Steering Committees (SSCs)

How to interpret the concept of truth is a much debated topic in the history of philosophy. The issues related to truth involve language, reality and their correspondence relations.

Investigating domestic crafts and subsistence activities through experiments and material analysis

On 9 September 2020, Ruben de Graaff defended his thesis 'Concurrence in European Private Law'. The doctoral research was supervised by Prof. A.G. Castermans and Prof. S.C.G. Van den Bogaert.

Gibbs measures, as used in Statistical Mechanics, have a definition that is remarkably similar to the definition ofg-measures, used in dynamical systems.

Are there any differences in gaze behavior between high and low socially anxious individuals? What factors influence the relation between social anxiety and gaze behavior?

Archaeological heritage management is concerned with the identification, protection, management and preservation of the material remains of human activity in the past (of whatever period and in whichever region of the world) and with the interaction that this involves with all kinds of stakeholders.

Promotor: Prof.dr. F. den Hollander

By training with virtual opponents known as computer generated forces (CGFs), trainee fighter pilots can build the experience necessary for air combat operations, at a fraction of the cost of training with real aircraft.

The Brain and Education lab is a research group in the Institute of Education and Child Studies at Leiden University, the Netherlands. Our group is embedded in the Educational Sciences research program and the Leiden Institute of Brain and Cognition.

This dissertation consists of two parts, with the common theme

Rembrandt & Leiden University: The Bigger Picture commemorates the 444th anniversary of Leiden University and the 2019 Rembrandt Year. Our special thanks go to Germanisches Nationalmuseum (Nuremberg), The Leiden Collection (New York), Museum De Lakenhal (Leiden), Mauritshuis (The Hague), Rijksmuseum/Musée…

Promotor: J.M. van den Broek Co-promotor: M.C. de Vries

This dissertation consists of two parts, each of which considers a different research area related to random interval maps. In the first part we are interested in random interval maps that are critically intermittent.

Dit rapport maakt deel uit van het project Receptenboek burgerparticipatie in opdracht van de Rijksdienst voor het Cultureel Erfgoed (RCE) en met steun van het Fonds voor Cultuurparticipatie.

Stochastic resetting is simple enough to be approached analytically, yet modifies stochastic processes in a non-trivial way.

Jochem van den Boogert defended his thesis on 18 November 2015