One of the most important correlation functions in physics, especially in cosmology, is the energy density, which describes how much energy is present at each point in spacetime due to matter fields. A key contribution to the energy density of the primordial universe comes from gravitational waves (GWs),…

Promotores: H.S. Overkleeft, G.A. van der Marel, Co-promotor: B.I. Florea

On the 28th of June, Laura Smorenburg successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Laura on this achievement!

Promotor: Prof.dr. M. Ubbink

The experiments described in this thesis employ local lentiviral knockdowns in brain areas of female zebra finches followed by behavioural assays consisting of preference and Go/Nogo tasks.

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).

Promotor: E.F. Smets, Co-promotor: J. Geml

Promotor: J.N. Kok, Co-promotor: C.M. Soares, A.J. Knobbe

This thesis discusses several questions regarding the double ramification cycle as a Chow class on the moduli space of stable n-pointed genus g curves using tools from so-called logarithmic geometry.

Computational linguistics uses computational methods to help answer linguistics questions across a variety of topics.

The lipid membrane is a basic structural component of all living cells. Embedded in this nanometer-thin barrier, membrane proteins shape the membrane and at the same time respond to the shape of the membrane.

Promotor: Prof.dr. T. Hankemeier, Co-promotor: T.H. Reijmers

The deeper understanding of an organism's pathology is important for developing treatments. Over centuries of systematic research, clinical researchers have demonstrated that the more information they acquire about the cellular properties and their organisation in the tissue, the better they can understand…

Lysosomal glycosidases are acid hydrolases that fragment glycoconjugates in lysosomes.

Atherosclerosis, in particular rupture of atherosclerotic plaques, is the underlying cause of most heart attacks or strokes and is the leading cause of death worldwide.

This thesis describes how to scale down concepts of macroscopic mechanical metamaterials to the thermal scale using a system of flexibly-linked colloids.

Radiography is an important technique to inspect objects, with applications in airports and hospitals. X-ray imaging is also essential in industry, for instance in food safety checks for the presence of foreign objects.

The Faculty of Governance and Global Affairs

Irna Hofman defended her thesis on 10 January 2019.

Promotor: B. van de Water, Co-Promotores: J.H.N. Meerman, F.J. Verbeek

New and reemerging infectious diseases call for innovative and efficient control strategies of which fast vaccine design and development represent an important element.

Associate professor at the Natural Products Laboratory, Institute of Biology, Leiden University - the Netherlands

Research on the process of artisanal and small-scale mining (ASM) in West-Africa

The aim of this thesis is to expedite and ensure the systematic accuracy of clearance scaling from adults to paediatric patients, with a special focus on drugs undergoing hepatic metabolism.

Galaxy intrinsic alignments induce a major astrophysical contamination to weak gravitational lensing measurements and need to be modelled and mitigated when extracting cosmological information from such measurements.

The investigation into the bidirectional communication between the gut and its host is a rapidly growing area of research, attracting considerable attention for its potential to provide crucial insights into health and disease.

Being a Slave brings together scholars and writers who try to come to terms with the histories and legacies of European slavery in the Indian Ocean.

Acidobacteria is a widely distributed phylum but their functional roles in ecosystem processes are still largely elusive.

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…

Firearms and violence in Europe–A systematic review by Katharina Krüsselmann, Pauline Aarten, Marieke Liem

Interactive exploration of large volumes of data is increasingly common, as data scientists attempt to extract interesting information from large opaque data sets. This scenario presents a difficult challenge for traditional database systems, as (1) nothing is known about the query workload in advance,…

A retrospective impact assessment of human and environmental resource usage in Late Bronze Age Mycenaean Monumental Architecture, Greece

Isotopic insights on human diet from the later stone age to Neolithic in Northwest Africa, Morocco

On 9 May 2018, Roy van Keulen defended his doctoral thesis 'Digital Force: Life, Liberty & Livelihood in the Information Age'. The doctoral research was supervised by Prof. dr. A. Ellian.

Our courses embrace developments in technology. Our teachers adapt technological innovations to their discipline, and we keep our teaching up to date on rapid developments in the digital world.

Despite the value of technology integration for educational equity and quality being emphasized by numerous studies, many gaps exist about how technology integration can be approached in policy plans, implemented in pedagogical practices, and embraced by teachers, students, and parents.

Together@FGGA – Together towards a safe, inclusive and balanced work environment

Challenges for the protection of traditional knowledge and genetic resources, traditional cultural expressions, and traditional knowledge of indigenous peoples in the international scenario.

Leiden University offers a world-class academic environment with access to unique resources and expert faculty.

We strive to address the challenge of constructing a modeling language to write software which can take advantage of recent hardware developments (multicore, cloud) without compromising in its abstraction levels.

The role of material production as a driver of environmental impacts is increasing, which calls for a better understanding of global material flows. This thesis explores the role of in-use stocks of products, buildings and infrastructure as a key driver of global material demand and discusses the implications…

Our institute aspires to be the center of excellence for strategic and quantitative research and education on sustainable use and governance of natural resources and biodiversity. We have two distinct research programmes: Environmental Biology and Industrial Ecology. The department of Industrial…

You can do a degree in Artificial Intelligence at Leiden University, but its role is also increasing in other degree programmes.

Joe Powderly was recently awarded a Leiden Global Interactions Advanced Seminar grant (GIAS) for a project that looks at heritage destruction, human rights and international law. The project approaches cultural heritage destruction from an interdisciplinary perspective and involves an exciting collaboration…

The ability to create objects and structures with our hands has been essential to human development. This ability is something modern society is at risk of losing. Leiden archaeologists gather knowledge about ancient processes of ‘making and creating’ over the centuries, knowledge that helps our current…

The Agent Based Modelling for Archaeologists (ABMA) project is dedicated to developing Open Educational Resources (OERs) and accompanying materials for agent-based modelling (ABM) in Archaeology.

In 2023, the OSCL, together with the University Library and Academia in Motion, ran a survey to better understand the state of Open Science at our university. In this year's follow-up, we are asking you to give your input, so we can jointly develop how Open Science evolves in our university.

TARA aims to accelerate research assessment reform through: Systematic review of new or innovative research assessment policies and practices at academic institutions, primarily in the United States and Europe Analysis & assessment of new or innovative research assessment policies and practices…

In this research I assess the impact of the recently discovered gas reserves south off Cyprus on the escalation of the Cyprus conflict.

Connecting Agriculture, Crafts, Construction, Transport, and Resilience Strategies