The central question of this thesis is: What drives late Middle Paleolithic stone artifact variability? In its attempt to answer this question, this thesis is a contribution to understanding variability within and between late Middle Paleolithic assemblages of the European Plain.

MPs in the Netherlands are first and foremost motivated by their direct environment, i.e. the parliamentary and partisan institutions.

This article researches the public perception of terrorist attacks by measuring the importance the public assigns to attributes of terrorist attacks.

Reactions and reaction times in cognitive tasks.

Bacteriophages, or phages for short, are the most abundant biological entity in nature. They shape bacterial communities and are a major driving force in bacterial evolution.

Many conflicts in Africa have been studied and described as location and time bound. Yet conflict is rarely confined and contained, and instead reaches across communities, borders, and generations.

How to facilitate the translation of science into innovation

On 29 June May 2022 Yujing Tan successfully defended a doctoral thesis and graduated.

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

Are you eager to bring your own questions and curiosity into scientific research? Do the creation of media and use of technology drive your research interests? Could you be a researcher who challenges scientific practice and pushes its boundaries?

Intermediality, Media Practices and Media Literacy is one of the six research themes of the LUCAS Modern and Contemporary cluster.

While self-driving cars and autonomous weapon systems have received a great deal of attention in media and research, the general requirements of ethical life in today’s digitalizing reality have not been made sufficiently visible and evaluable.

In recent years, the question why citizens (do not) support democratic innovations has attracted increasing academic attention. In this research note, Van Der Does & Kantorowicz for the first time empirically verify what drives citizens’ instrumental considerations in their evaluation of a DI.

This thesis studied in depth the energy use and CO2 emissions of the industrial sector in China.

The master’s specialisation Evolutionary Biology at Leiden University investigates biology at all levels. The specialisation includes genomics, functional developmental genetics, paleobiology, behavioral biology and evolutionary ecology.

The research at The Metabolomics & Analytics Centre is centered around developing innovating analytical methods to enable metabolomics-driven systems biology in personalized health strategies.

On 24 January 2024, Vethaak defended the thesis 'Empirical Analysis of Social Insurance, Work Incentives and Employment Outcomes'. The doctoral research was supervised by Koen Caminada and Pierre Koning.

Subproject of

Human trafficking is a very topical social problem, which because of both its social and legal complexity, can only be studied in an interdisciplinary way. Combating human trafficking currently features high on national and international policy agendas.

How do the pathways of Dutch converts to Islam involved in jihadist movements differ from those of Dutch converts who are not, in terms of their life prior to Islam, their conversion experience and the form of involvement with the Islamic community after conversion?

Study information

Festival, FestiWell | Event vanuit EUniWell

Together with colleagues from the Stimson Center and in the framework of the Global Governance Innovation Network, Dr. Joris Larik has recently published the report

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.

The Netherlands X-omics Initiative is a new facility as part of the National Roadmap for Large-Scale Research Infrastructures. It is partly funded by NWO with a total budget of 40 million euro. The project started on September 2018 and will last for ten years.

Throughout all domains of life, from bacteria and archaea to eukaryotes, genomes adopt well-organized three-dimensional structures that can change in space and time to accommodate preferred transcriptional programs for environmental adaptation, the maintenance of cellular identity and differentiation…

In the academic year 2023-2024 the SRS interdisciplinary programme will offer four courses for interested students who are entering the third year of their Bachelor's degree. You can sign up for these courses in your elective (minor) space. You can follow the courses individually as an elective, or…

The focus of the described research in this thesis is on the oxidative stress response (Nrf2 pathway). The aim of the research presented in this thesis is to obtain more information concerning microRNAs which are involved in the Nrf2 pathway, to determine and evaluate the application of microRNAs for…

Creating a framework to assess the sustainability of fish farms which will set sustainability standards and give consumers information about the the sustainability and safety of their seafood.

Promotores: G.A. Persoon, H.H. de Iongh

On 23 February 2022, Cale Davis defended the thesis 'Prosecutorial Discretion in International Criminal Justice'. The doctoral research was supervised by Prof. C. Stahn en Dr. J.C. Powderly.

This year is the 444th anniversary of Leiden University and we are celebrating this with the residents of the two cities in which the University has a presence: Leiden and The Hague. We are therefore holding an exhibition about the University and its connections to the city in the Atrium of City Hall…

Enabling volume-restricted metabolomics using next-generation microscale analytical tools.

Promotor: Prof.dr. H.J.A. Rottgering, Co-promotor: David Sobral

This thesis is dedicated to the exploration of the primordial dark ages: unknown physics during the earliest stages of the Universe’s expansion that have not yet been directly probed by observations. Cosmic inflation is a burst of exponential expansion of space after the “Big Bang”.

The study of orchid flowers, fruits, and inflorescences is crucial due to the remarkable diversity of orchid species and their unique adaptations to pollinators and seed dispersers. However, our understanding of the evolution and development of these organs within the orchid family remains limited.

The soil ecosystem consists of the largest reservoir of biodiversity on Earth.

What are the global relationships between environmental conditions and abundance of distinct types of mycorrhizal fungi in soil and plant roots?

Promotores: Prof.dr. P.C.W. Hogendoorn & Prof.dr. H.P. Spaink, Co-promotor: Dr. B.E. Snaar-Jagalska

Introduction to Medieval Europe 300–1500 provides a comprehensive survey of this complex and varied formative period of European history, covering themes as diverse as barbarian migrations, the impact of Christianisation, the formation of nations and states, the emergence of an expansionist commercial…

Leiden Law School has established the Empirical Legal Studies Lab to support legal research and education using empirical methods.

Wetland plants are distinguished from plants of other terrestrial ecosystems by their adaptations to specific habitat stresses, including waterlogged and flooding and the subsequent abundance of phytotoxic compounds.

This book examines the history of The Netherlands in a way that connects global processes to local developments.

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?

Research in the natural computing cluster covers theoretical foundations, the development of new algorithms, and interdisciplinary applications of natural computing methods.

In the research programme Drug Discovery & Safety, we are interested in the efficacy and safety of new drugs and novel means to decipher these aspects. Hence, we employ advanced imaging and high-throughput screening techniques next to computational approaches such as chem- and bioinformatics.

Machine Learning is becoming a more and more substantial technology for industry.

The field and the classroom invites ethnographers to engage with critical and engaged pedagogies. Breaking down the barriers between fieldsite and lecture hall, this research cluster aims to interrogate the structures and values that shape anthropological and sociological education today.

A global synthesis of the extent, diversity and patterns in off-site fire use by historically documented and current hunter-gatherers with the remit of this study in the deeper past.