This book presents an in-depth grammatical description of Kumzari, a mixed language spoken in remote villages on the Musandam Peninsula in northern Oman.

In this thesis, the research focuses on the properties of dark matter and dark matter haloes and how they connect with the galaxies we can observe in the Universe.

This dissertation aims at discussing the nature and the linguistic factors assumed responsible for speech intelligibility problems of Sudanese learners of English.

This research paper seeks to examine the nature of the nexus between right-wing extremism and the military by surveying five potential consequences (i.e., problem areas) arising from the presence of right-wing extremists within the armed forces of twelve Western countries.

Can process-oriented dynamic testing be applied to everyday educational practice?

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…

Decarbonizing the building stock is critical for realizing the climate-neutral target for the Netherlands.

Barrier function is the natural role of the skin. The lipid matrix present in the outermost layer of the skin, the stratum corneum is important for this function.

What evaluative languages (errors, mistakes, vices, etc.) did book reviewers employ? To what extent and on what occasions did they invoke early modern vices? And to what extent did this differ across fields or change over the course of the century?

Plant exudates appeared long time ago in the history line of life in the early Devonian. They are typical saps produced by specialized cells.

This study explores the role of linguistic data in the reconstruction of Dolgan (pre)history by analyzing contact-induced changes and using them to infer information about the nature of the contact settings in which they occurred.

The skin is our natural barrier and lipids are a key part of this barrier. In the outer skin layer, the stratum corneum (SC), lipids form a densely organized structure dependent on the composition of these lipids.

Simulating human language understanding on the computer is a great challenge. A way to approach it is to represent natural language meanings in logic, and to use logical provers to determine what does and does not follow from a text. What logic is best to use and how natural language meanings are best…

On the 31 March 2022 Mr. Taufiq Hanafi successfully defended a doctoral thesis and graduated.

Our AI researchers work closely with other institutions such as Delft University of Technology and Erasmus University.

Worldwide resurgence of pertussis necessitates the need for improvement of pertussis vaccines and vaccination strategies.

Research and design are two activities that are becoming increasingly important in the Dutch subjects O&O (‘research and design’) and NLT ('nature, life and technology’). The dissertation of Tessa Vossen (ICLON and Faculty of Science) indicates that teachers and students understand the importance of…

Soil is a home for an unbelievable diversity and abundance of microbial life that is essential for supporting life on our planet.

Can we distinguish the effects of pesticides from other abiotic and biotic factors that occur in the field? And how do these factors interact with pesticides?

To this day, all cyclophellitol-based inhibitors and ABPs have been close analogues of their natural substrate counterparts. As a result, these probes showed high selectivity towards their target glycosidases.

Artificial photosynthesis has recognised potential to produce green and sustainable fuels from earth-abundant resources such as water, carbon dioxide (CO2), and sunlight.

Actinobacteria are Gram-positive bacteria that have a complex multicellular life cycle and are well known for their ability to produce a wide range of bioactive natural products (NPs).

Nietzsche's famous notion 'amor fati' is often associated with the Stoic maxim to 'live in accordance with nature'; we have to fully accept our fates in order to attain happiness. But is happiness really what Nietzsche's 'amor fati' is about? And how to account for all the fiercely critical remarks…

Microbial Sciences' contribution to the Bioactive Molecules research theme is to discover new bioactive molecules and enzymes and unravel their mechanisms of action, regulatory networks, and the (bio)synthetic pathways required for their production.

Antibiotics are a class of medicine most people take for granted. But pathogenic bacteria are becoming more and more resistant to our antibiotics, and this poses a great challenge for future treatments. There is thus a great societal need to identify new molecules that can address new targets and be…

Plants are colonized by an astounding number of microorganisms that can provide different life-support functions, including nutrient acquisition and protection against (a)biotic stresses like drought or pathogen attack.

Synthetic hydrogels that mimic the natural extracellular matrix in the biophysical and biochemical cues it provides to cells are in high demand, however the cell phenotypes as they are observed in vivo in numerous cases have yet to be attained.

Artificial photosynthesis aims to produce fuels from solar energy using chemical processes. In semi-artificial photosynthesis, a hybrid approach is taken using both chemical and biotechnology approaches. We aim to develop hybrid systems between light-harvesting nanoparticles and redox-enzymes (oxidoreductases)…

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.

Promotores: Prof.dr. J. Zaanen & Prof.dr. K.E. Schalm

Moritz Jesse, Associate Professor of EU Law at the Europa Institute, has published his book, “The Civic Citizens of Europe: The Legal Potential for Immigrant Integration in the EU, Belgium, Germany, and the United Kingdom”.

What plants grow along ditches in the Leiden region? What does this say about vegetation quality? Could it be better? Naturalis and Leiden University's Center for Environmental Sciences are looking for your help to answer these questions.

This project is a three-year collaborative research between European and Chinese researchers (2015-2018). As a part of the China-Europe “Understanding Population Change” Collaborative Research Initiative, the project utilizes multidisciplinary research methodologies (social and cultural anthropology,…

How do balanced lethal systems originate and persist in nature?

This article describes that although the use of the concept of energy justice is new, normative interpretations have long been part of energy policy.

On this page the programme and sessions can be found. Keynote speakers will be announced soon.

Are you a student, resident, civil servant or scientist and want to participate in devising or conducting research to make Hague neighborhoods more sustainable? Then read on.

Lecture, Ancient History Research Seminar

From black holes to artificial intelligence and from drug research to data science: welcome to the fascinating world of the Faculty of Science. Our researchers, students and guests regularly give public lectures about their work. You are welcome to attend.

Optimality in plant properties and processing.

The Metabolomics Facility of the University of Leiden has brought together two research groups from the Faculty of Science that are well-known for their expertise in two different fields: the Biomedical Metabolomics Facility Leiden, experts in clinical metabolomics and the Natural Products Laboratory,…

Promotores: Bas Edixhoven, Jean-Benoit Bost, Co-promotor: Robin de Jong

The nation-state is not so old as we are often told, nor has it come to be quite so naturally. Getting this history right means telling a different story about where our international political order has come from—which in turn points the way to an alternative future.

If an algorithm has to learn to understand language, simply having a lot of data doesn’t help much. Like us, a computer has to learn the language in interaction with others. Tessa Verhoef is fascinated by how this interaction works.

Industrialised countries extract natural resources in the territories of indigenous peoples, and appropriate the knowledge and culture of these peoples. Leiden anthropologists work to protect the rights of indigenous peoples. Their knowledge and advice enable governments to source sustainable produc…

In this publication the results of the analyses of the Roman harbour of Voorburg-Arentsburg (NL) are presented. This fully inclusive and integrated study of more than 1000 pages is published in two volumes. The publication is written in Dutch, but has got an extensive synthesis/summary in English.

The research in my group addresses a range of topics related to quantum many-body physics.

Key publications of the Quantitative Pharmacology group

The NestWacht project is a Citizen Science collaboration between Science Centre Delft, Naturalis, and the Citizen Science Lab of Leiden University to engage individuals, families and primary schools in Leiden and Delft in scientific research on the impact of climate change on nature in their city, and…