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).

This thesis investigates the application of deep learning techniques in image analysis across various domains, focusing on four main themes: feature extraction, classification, segmentation, and integration, demonstrating the transformative potential of these technologies.

Promotor: B. van de Water

eLaw Conferences

Who doesn't know him: the world-famous Dutch painter Rembrandt van Rijn. But did you also know that Rembrandt was a Leiden student? In 2019, Leiden University celebrated its 444th anniversary. In that lustrum year, which was also a Rembrandt year, we made the connection between Rembrandt and Leiden…

Microbial rhodopsins are photosensitive pigments implemented in the growth and adaptation of a large population of microorganisms.

Heart failure is a major health care problem with high mortality.

What motivates citizen scientists in the Schone Rivieren project to contribute? How does their motivation, attitude and knowledge change over the years? Are there differences in motivation and attitude between different groups of volunteers (clean up vs. monitoring; long-term vs. short-term)?

This collection considers such issues as the cognitive, linguistic and emotional benefits of speaking two languages, the perceptions, attitudes and issues relating to identity in minority language areas, and the number of grammatical aspects amongst those who speak these minority languages.

Environmental Humanities in the New Himalayas: Symbiotic Indigeneity, Commoning, Sustainability showcases how the eco-geological creativity of the earth is integrally woven into the landforms, cultures, and cosmovisions of modern Himalayan communities.

We are cosmologists, in other words we use physics to study the Universe, how it started and evolved into the structure that we observe around us.

Don Scott De Amicis will give the sixth Hazelhoff Guest Lecture on international development finance: challenges and opportunities.

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

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

The sustainable business law research group is dedicated to researching the complex relationship between business activities and sustainability. It strives to develop legal solutions that contribute to a more ethical, just, ecologically responsible and socially inclusive society. Our aim is to develop…

We are a dynamic research group at the Leiden Institute of Physics. Our aim is to explore and understand quantum materials, including strange metals, high-temperature superconductors, and quantum critical electron matter.

On Thursday 20 May 2021, Tania Li delivered the annual Van Vollenhoven Lecture.

On 17 August 1945, two days after the Japanese surrender that also brought an end to the Second World War in Asia, Indonesia declared its independence. The declaration was not recognized by the Netherlands, which resorted to force in its attempt to take control of the inevitable process of decolonization.…

Join the Pipe is a project committed to reduce plastic waste and to provide people both in the Global South and in the Global North with drinkable water.

Delineating psychophysiological endophenotypes of social anxiety disorder

This socio-legal study focuses on the implementation of climate change response laws and policies in developing countries with a weak rule-of-law environment, and their (unforeseen) effects on vulnerable peoples’ land rights.

This thesis examines the link between simple molecules and the underlying structure and chemistry within protoplanetary disks - the birthplaces of planets.

OBJECTIVES: To determine whether the lipid/protein ratio and the total dry SC mass per surface area are related with the skin barrier function of controls and AE patients.

Consequences for sediment stability and seston trapping

Introduces a novel trope of photographic images dealing with states of mental disorders; focuses on photographs that visualize disturbed corporeal and mental perceptions of the world and connects medium-specific characteristics of photography to concepts from mental disorder studies.

Our scientists working with laboratory animals undergo training on animal experiments. In this training, researchers learn how to handle laboratory animals responsibly. Read more about the requirements we set for researchers working with laboratory animals.

Climate adaptation strategies frequently include the sourcing of heritage, encompassing landscapes, built environments and cultural practices. However, effective climate change governance requires taking seriously the stakes of local communities and the power relations that structure heritage initia…

The unique geographic and temporal breadth of research at Leiden allows us to stimulate a shift from the classical Weberian mode of scholarly production that views historical development and modernization as emanating from Europe and the West to a multi-polar perspective that allows for more nuanced,…

On 21 March 2019, James Welch defended his thesis 'The Grotius Sanction: Deus Ex Machina. The legal, ethical, and strategic use of drones in transnational armed conflict and counterterrorism'. The doctoral research was supervised by Prof. dr. P.B Cliteur.

The wealth of shoes, sandals and other footwear from ancient Egypt is poorly understood due to lack of research. This is remarkable, because from the very beginning of Egypt’s long history footwear served practical as well as more spiritual purposes.

In this opinion article published in World Development, the authors present five research and policy priorities. While it is clear that ‘pluriversal’ designs need to guide the way forward (Kothari et al 2019), defining a set of key pillars can provide direction and purpose across this pluriversality.…

Cryogenic electron microscopy (cryo-EM) is a powerful technique used to visualize the inside of cells and to study specific protein complexes. Within this thesis, I describe the use of various cryo-EM techniques to gain insight into the structural changes of the human pathogen, Vibrio cholerae, as it…

Imagined Voices deals with a form of composition, music with on-screen text, in which the dynamic between sound, words and visuals is explored.

This study examines recovery planning committees across Japan's Tohoku region.

The Vallesian, 11.1-9 Ma, was a special time in the Vallès-Penedes basin near Barcelona, where a biodiversity hotspot existed. Europe had a subtropical climate, with rhinos, forest giraffes, lions, hyenas, flying squirrels and primates.

The aim of this project is to get a clear overview of sustainability efforts being made within the faculties, as well as making lasting connections with and between university staff and students involved in these efforts. The Leiden University Green Office (LUGO) aims to play a connecting role in this…

Is EEG theta\beta ratio predictive towards the negative effects of stress on cognitive performance in individuals suffering from performance anxiety? Can we improve resilience to performance anxiety by using a theta\beta ratio neurofeedback intervention?

In this article Jeroen Wolbers and Sanneke Kuipers take a closer look at disaster preparedness to reinvigorate the academic debate.

This book bij Hasan Çolak is based on rigorous research on unpublished and unexplored Ottoman correspondence between the Ottoman central administration and the Eastern Patriarchates, published Greek patriarchal documents, and French missionary and diplomatic sources.

Promotor: Prof.dr. E. Smets, Dr. M. Stech

PhD at Université de Picardie Jules Verne, Amiens - France

This paper examines the need and possibility for developing online resilience-based approaches in response to COVID-19 vaccine conspiracies, often linked to the far right.

The basic concern that informs every part of the research is in wonder of what happens when sound happens as an aesthetic force. The emphasis of each query lies on the active occasion, the radical empiricism, the moment of encounter, how the sonic event comes to pass as aesthetic force.

This thesis investigates how the assessment of circular economy (CE) at the macro-economic level can be facilitated and promoted⁠.

In this research group, headed by Prof. Erik Danen, the aim is to unravel cellular signaling mechanisms in normal and diseased cells, with a long-standing interest in cell adhesion signaling. In complex multicellular organisms such as ourselves, a division of labor emerges where different tissues and…

Promotor: Huub J.M. de Groot, Co-promotor: Francesco Buda

In the last two decades, there have been heated public and scholarly debates in France, the United Kingdom, and the Netherlands on the violent end of empire. Nevertheless, the broader comparative investigations into colonial counterinsurgency tend to leave atrocities such as torture, execution, and…

The Altai region has yielded a cluster of Middle and Upper Paleolithic stratified sites that have been recently excavated using a multidisciplinary approach.

Ömer Koçyigit defended his thesis on 7 July 2020

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.