How many men and women die per year at the hands of others? What are the motives behind these killings? Are there as many homicides today as years ago? How can we explain the rise and fall of homicides over time? And: What is the influence of (early) childhood and adolescence on the likelihood to commit…

Brain development in children with an extra X chromosome as compared to children with autism: evidence from MRI

This paper provides an initial answer to the question regarding eco-labels: ‘How can we make the development of eco-labels more structured and transparent?’

In the last decade, the redox interconversion between metal thiolate and disulfide compounds has been extensively investigated for copper, but not for other transition metal ions.

Subproject of

Archaeometric analysis of glazed pottery assemblages from the Early Byzantine to the Early Modern periods in the Aegean.

The availability of complete plant genome sequences together with the ever increasing amount of data on the molecular, cellular and physiological mechanisms of plant development require mathematical and computational models to obtain a complete overview of and generate new insights into the quantitative…

Analecta Praehistorica Leidensia is the annual journal of the Faculty of Archaeology (formerly the Institute of Prehistory), Leiden University.

Promotor: S.M. Verduyn Lunel

Atoms and molecules are the basic units of matter. If we keep dividing a bar of gold or a glass of water into smaller parts, at the end we are left with a single gold atom or a water molecule.

In this article, Thomas Maguire, Assistant Professor at the Institute of Security and Global Affairs, examines why states use intelligence to influence external audiences.

Ramesh Ganohariti, PhD student and Ernst Dijxhoorn, Assistant Professor at Leiden University, researched the relation between international relations and sports, with sport and sports events increasingly being used for various diplomatic and political goals.

We find ourselves in an era of transition, not just towards a more computing- and data-driven society but also away from unsustainable fossil fuels as an energy source.

GRIPonMASH will address the unmet public health need of reducing disease burden and comorbidities associated with Metabolic dysfunction-Associated Steatotic Liver Disease (MASLD).

This article describes the phenomenon of firearms violence and the importance of including non-lethal firearms violence in understanding this phenomenon.

This article investigates which factors most influence individuals’ decisions to engage in conversations about risk.

Promotor: Prof.dr. B.R. Katzy, Prof.dr. H.J. van den Herik, Prof.dr. G.H. Baltes (University of Applied Sciences Konstanz)

This proposed research uses ego-documents from visual artists that were not intended for publication to reassess the scholarly debate on the demise of the Russian Avant-garde aesthetic in the twenties and early thirties of the 20th century.

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In this book, Vanessa Newby provides the first detailed examination of credibility’s essential place in peacekeeping.

Big Science, commonly defined as conventional science made big in three dimensions, namely organizations, machines, and politics, brings a plethora of different stakeholders together, often for a long period of time. This includes policymakers, scientists, (scientific) managers as well as local “host”…

PURPOSE: To determine the effect of elasticity on the skin permeation of ketoprofen from surfactant-based vesicular formulations and elastic liposomes.

Religion in the ancient world, and ancient Egyptian religion in particular, is often perceived as static, hierarchically organised, and centred on priests, tombs, and temples. Engagement with archaeological and textual evidence dispels these beguiling if superficial narratives, however. Individuals…

This book explores intercultural management challenges in sub-Saharan Africa through a case study of Vasco Silva, a Portuguese businessman in Luanda, Angola.

Volume II of The Cambridge History of Strategy focuses on the practice of strategy from 1800 to the present day.

Supervisor: P.J.J. Hooykaas

On the 4th of June, Menghui Shi successfully defended a doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Menghui Shi on this achievement!

Because of their large surface area and immunological competence, mucosal tissues are attractive administration and target sites for vaccination.

This timely and engaging book examines the rise of populism across the globe. Combining insights from linguistics, argumentation theory, rhetoric, legal theory and political theory it offers a fully integrated characterization of the form and content of populist discourse.

The representation of death children in Dutch literature through time

On 11 November 2021, Evelien Campfens defended the thesis 'Cross-border Claims to Cultural Objects'. The doctoral research was supervised by Prof. N.J. Schrijver and Prof. W.J. Veraart (VU Amsterdam).

In meta-analysis, heterogeneity often exists between studies. In such cases, it is essential to investigate the sources of heterogeneity and understand the relationship between effect size and study characteristics (i.e., moderators).

This week, Prof. Luuk van Middelaar (Europa Institute) publishes Alarums & Excursions: improvising Politics on the Europen Stage – a revised update of his 2017 book on the decade of EU crises.

Food waste is a defining inefficiency of the modern food system, with profound implications for resource use, climate change, and circular economy transitions. This dissertation examines food waste through two complementary lenses: the prevention of avoidable food waste and the valorization of unavoidable…

Health Data Science Leiden University

On 27 June 2017, Daniel Dimov defended his PhD dissertation “Crowdsourced Online Dispute Resolution”. The supervisors are Professor H.J. van den Herik and Professor A.R. Lodder.

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.

Acute cardiovascular clinical events such as myocardial infarction and cerebral stroke represent the major cause of death in Western societies. These pathologies are primarily resulting from atherosclerosis, a progressive condition characterized by the accumulation of lipids, immune cells, and fibrous…

Politicians' statements often involve emotions, shaping public perceptions. This study highlights the role of emotions in EU foreign policy.

This book connects labour history, global history and the institutional or political history of international organisations.

Abrupt Climate Change and Cultural Transformation

On 29 June 2017, Carl Mair defended his PhD dissertation “Taking Technological Infrastructure Seriously”. The supervisors are Professor A. Schmidt and Professor G.J. Zwenne.

Surface plasmons (SPs) are surface waves at the interface between a dielectric and a good metal, and are formed by the interaction between light and the free electrons at the metal-dielectric interface. They provide strong field confinement for optical fields, opening new possibilities for enhanced…

The LOFAR radio telescope produces petabytes of data every year. Radio Astronomers use complex multi-step pipelines to process this data and produce scientific images.

Dendritic cells (DC) play a prominent role in the priming of CD8(+) T cells. Vaccination is a promising treatment to boost tumor-specific CD8(+) T cells which is crucially dependent on adequate delivery of the vaccine to DC.

How can mentors and social workers foster the vocational identity of at-risk youth and improve their prospects?

A major goal of ABS research is to overcome one of the major bottle-necks in metabolomic research: the lack of a high-throughput infrastructure in which thousands of samples can be processed in a standardized and cost-effective way (max. a few tens of Euro’s per sample for a full metabolome profile).…

This thesis is comprised of three chapters covering the theme of studying semistable varieties by looking at their dual combinatorial objects.

In my research, we developed a method to distinguish knots. A knot is a mathematical depiction of the everyday knot that occurs in ropes and cords.

On the 26th of September, Cosmas Rai Amenorvi successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Cosmas on this achievement!