One of the key limitations of the direct imaging of exoplanets at small angular separations are quasi-static speckles that originate from evolving non-common path aberrations (NCPA) to which the primary adaptive optics system is inherently blind. The main focus of this thesis is the development and…

We study the interplay of topology and geometry with chirality for several passive and active systems, employing both analytical and numerical methods.

This thesis aims to demonstrate how the achromatic nature and design flexibility of liquid-crystal optics can be used to improve high-contrast imaging instruments to facilitate detailed exoplanet characterization.

Development of Natural Resource for New Medicines

Due to the modern techniques of combinatorial chemistry and high-throughput screening, data on the biological activity of many millions of compounds is known. However, it is still very difficult to transfer this data into knowledge: if we know that compounds A and B bind to a certain protein with high…

On 18 May 2022, Annelien Bouland defended her thesis 'Please give me my divorce: an ethnography of Muslim women and the law in Senegal'. The doctoral research was supervised by Prof.dr. J.M. Otto, Prof.dr. M.M.A. Kaag and Dr.ir. C.I.M. Jacobs.

This thesis investigated miniaturized mass spectrometry (MS)-based analytical methods to address challenges in analyzing biomass-restricted biological samples.

In the Public Management and Leadership specialisation within the Public Administation master's programme, you study such core themes as: leadership behavior in public organizations; decision-making by political leaders and top-level civil servants; and the changing interactions between government and…

This book presents a new framework for regulating human-like machines designed for emotional and sexual engagement, often powered by AI.

This study looks at population response to government containment strategies during initial stages of the COVID-19 pandemic in four high-trust Northern European countries–Denmark, Germany, the Netherlands, and Sweden–with special emphasis on expressions of governmental trust.

Operators in the Lexicon opens with an old chestnut: why are there no natural single word lexicalizations for negations of the propositional operator and and the predicate calculus operator all: why neither *nand nor *nall?

The research group on governance of crises studies phenomena, dynamics and actors related to crisis governance. The Leiden University Crisis Research Center (CRC) is part of this Research Group.

Viral hemorrhagic fever (VHF) is a group of acute diseases caused by highly infectious viruses including Ebola, Lassa, Dengue viruses. Its high mortality rate poses high risk to public health, however, studies on VHF have been hampered due to the non-availability of proper models and incomplete knowledge…

How does global change across time and space lead to convergence and loss of variation or increasing diversity and conflict?

LIACS aims at being a diverse and inclusive research institute. To reach this goal, two instances are working on addressing diversity related issues.

Op zaterdag 27 februari organiseert Stichting Zenobia het Vijftiende Zenobiacongres, met de titel Van de Levant tot de Lagune: Venetië en het Oosten. Het congres zal online plaatsvinden en is vrij toegankelijk.

How do women and men living in logging concessions in Solomon Islands experience the impacts of logging during and after logging operations? This project assesses how and why industrial logging affects men and women differently. Using insights from an ethnographic case-study of the logging industry…

The World Teachers Programme (WTP) is a bilingual profile of the Initial Teacher Education programme geared towards bilingual and international education.

The Journal of the LUCAS Graduate Conference was founded in 2013 to publish a selection of the best papers presented at the biennial LUCAS Graduate Conference, an international and interdisciplinary humanities conference organized by the Leiden University Centre for the Arts in Society (LUCAS). The…

Discover the NWA-funded project 'Crafting Resilience' and its long-term research into building a resilient societies through social interventions in eight Dutch cities.

Het project heeft plaats gevonden in de Gorter LUMC groep onder begeleiding van Dr. J.W.M. Beenakker en prof.dr.ir. T.H. Oosterkamp . De titel van de presentatie is:

Het project heeft plaats gevonden in de QMO groep onder begeleiding van Dr. Michiel de Dood en Dr.ir. Sense Jan van der Molen. De titel van de presentatie is:

Het project heeft plaats gevonden onder begeleiding van Prof.dr.ir.Tjerk Oosterkamp. De titel van de presentatie is:

Het project heeft plaats gevonden in de KM3NeT Nikhef Amsterdam groep onder begeleiding van Dr. D.F.E. Samtleben en Prof.dr.ir. T.H. Oosterkamp. De titel van de presentatie is:

Op vrijdag 4 april 2025 organiseert de werkgroep Stedengeschiedenis een bijeenkomst bij de Rijksdienst voor het Cultureel Erfgoed onder de titel ‘Archeologie en de stad’. De studiedag is gratis en voor iedereen toegankelijk.

A single self-assembled semiconductor quantum dot in a high-finesse optical microcavity - the subject of this thesis - is an interesting quantum-mechanical system for future quantum applications. For instance, this system allows trapping of an extra electron and thus can serve as a spin quantum memory,…

Source: Mol Pharmacol, Volume 87, Issue 2, pp. 305-13 (2015)

CONCLUSION: This study demonstrates that human macrophages can be induced to exert direct anti-tumor activity against osteosarcoma cells. Our observation that the induction of macrophage anti-tumor activity by L-MTP-PE required IFN-gamma may be of relevance for the optimization of L-MTP-PE therapy in…

Research at the BIOSYN group is comprised of the following research themes:

In the Aarts lab we combine or structure materials, mostly in thin film form, in such a way that the hybrid has different and novel properties or functionalities.

This open access volume surveys the state of the field to examine whether a fifth wave of deterrence theory is emerging. Bringing together insights from world-leading experts from three continents, the volume identifies the most pressing strategic challenges, frames theoretical concepts, and describes…

A research goal for ABS is to develop miniaturized platforms for research in (stem)cell, in-vitro systems and application in clinical and preventive research. Combined with the high throughput, this development will make it possible to study the dynamics of pathogenesis in human and cellular models…

Psycholinguistic research

An overview of research themes and projects at ABS.

Area studies is an approach to knowledge that starts from the study of places in the human world from antiquity to the present, through the relevant source languages, with central regard for issues of positionality.

A substance flow analysis, covering about 99 % of the flows of chlorinated substances in the Netherlands.

A warm welcome to the Graduate School of Social and Behavioural Sciences at Leiden University.

On this page the programme and sessions can be found.

Tussen 14 en 30 september 2022 wordt Het Land van Belofte gespeeld door Theatergroep De Kale. Het Land van Belofte neemt u mee naar de groteske verhaalwereld van middeleeuwse pelgrims naar het Heilig Land. Het Land van Belofte is gebaseerd op het zestiende-eeuwse tafelspel Schipper, Pelgrim en Post.…

Op donderdag 17 april 2025 neemt prof. dr. Marco Mostert, Hoogleraar Middeleeuwse Geschiedenis aan de Universiteit Utrecht afscheid.

Leading computer scientists from a variety of fields share their expertise and insights. Dive into the minds of these researchers and learn about real-world applications, the future of AI and related technologies and cutting-edge research. From chatbots to cybersecurity, from quantum to children's stories,…

Some examples of AI-research done at Leiden.

The CADS Asia Research Cluster extends the legacy of the Institute’s Asia focus into the future, as an important hub in international networks on the study of Asia and through active engagement with colleagues in Asia. Within the Institute the Asia Research Cluster offers a platform for anthropologists…

Research and design are becoming more and more important in international science education. In The Netherlands, two recently introduced subjects focus on research and design activities in the classroom: O&O (research and design) and NLT (nature, life and technology). This research aims to look at what…

Lecture

The last two months of 2016 were a very productive time for the ACPA. We had no less than 6 promotions!

The article 'Co-productive agility and four collaborative pathways to sustainability transformations' is published in Global Environmental Change and accessible via OpenAccess. Professor Anthropology of Sustainability and Livelihood Marja Spierenburg of the Institute of Cultural Anthropology and Development…

We explore the possibilities to combine magnetic resonance techniques with atomic force microscopy together in a single microscope: the MRI-AFM, also called Magnetic Resonance Force Microscopy (MRFM).

Plant Sciences' contribution to the Evolution & Biodiversity research theme is to understand what are the key drivers of plant biodiversity during evolution with a focus on plant life history and resilience traits and develop tools to restore and maintain plant biodiversity.

Promotor: H.J.M. de Groot