Toen in 2019 honderden afvalcontainers in de Waddenzee vielen, wilde de overheid geen informatie vrijgeven over wat er in de containers zat. Vijf jaar later weten we eindelijk meer, nadat hoogleraar Esther Kentin beroep deed op de Wet Open Overheid.

Leading experts claim the Dutch government is doing too little about the situation in Gaza, even pointing to a violation of the 1948 Genocide Convention. Larissa van den Herik, Professor of International Law, comments on the topic in RTL News and BNR Radio.

Twaalf rechtenstudenten krijgen tot maart 2025 de kans om achter de schermen te kijken bij rechtbank Den Haag via het Honours College Law-vak ‘Masterclass rechtbank Den Haag’. Studenten Quinten Heerma en Eva Verdellen delen hun ervaringen met deze Masterclass.

Vijf rechtswetenschappers, waarvan drie verbonden aan de Leidse afdeling Europees recht, Armin Cuyvers, Stefaan Van den Bogaert en Vincent Delhomme, stellen in Digitaal Universiteitsblad (DUB) dat de voorgenomen kabinetsbezuiniging van 168 miljoen euro, om de instroom aan internationale studenten te…

EU Law Live is holding an online symposium on the theme of 'Climate Protection as a European Fundamental Right under the ECHR', with staggered online contributions.

Goede en actuele data zijn cruciaal om infectieziekten effectief te bestrijden en de volksgezondheid te beschermen. Bijzonder hoogleraar Susan van den Hof en haar team zetten zich in voor betere data-methoden, zodat infectieziekten vroeg worden opgespoord en doeltreffend worden aangepakt.

This publication is written in Dutch. Please consult the Dutch page for more information.

On 1 October 2020, Arianne de Leeuw defended her thesis 'Scheiding van zeggenschap en belang in de familiesfeer'. The doctoral research was supervised by Prof. F. Sonneveldt and Prof. A.O. Lubbers.

Bij de Universiteit Leiden zet onze Onderzoeksgroep violence and violence prevention zich in voor het bevorderen van kennis en begrip op het gebied van geweld en geweldpreventie door middel van interdisciplinaire wetenschappen en innovatieve methodologieën. Onze faculteitsleden zijn toonaangevende…

Political scientist Maurits de Jongh (Leiden University/Sciences Po) argues that political liberalism is self-defeating as a framework of justification for liberal conceptions of justice. He explores how the framework's self-imposed criterion of acceptability in the eyes of all reasonable citizens leads…

Paisaje, cerámicas e interacciones

This research aims to address the relationship between cinema and political thought in Latin America, in order to question a limited understanding of cinema politics, which has dominated the field of study since the middle of the last century, and to propose a different one that we will call politics…

Die Aufführungspraxis italienischer Instrumentalmusik in der Auseinandersetzung mit Vokalmusik und Text: Quellen und moderne Umsetzung

Why is there not just one single global law for cases of defamation in cross-border communication mediums such as the internet? Which courts are to be called on in such cases? And is it permissible to hold an intermediary instead of a content provider liable?

On 30 June 2021, Thijs Beumers defended his thesis 'De bescherming van immateriële contractuele belangen in het schadevergoedingsrecht'. The doctoral research was supervised by Prof. A.G. Castermans and Prof. W.H. van Boom.

Iconografía, epigrafía e historia en los monumentos arqueológicos

Lecture, Presentation research project

De plannen van het kabinet-Schoof om een langstudeerboete zorgt voor veel ophef. Promovendus Joris van de Riet schreef een opinieartikel erover voor Trouw. Zijn argument is dat een langstudeerboete desastreuze gevolgen kan hebben voor studentenverenigingen.

Benjamin Fogarty-Valenzuela published the article 'Pedagogies of Prohibition: Time, Education, and the War on Drugs in Rio de Janeiro’s Zona Norte' in Cultural Anthropology 37. The article’s three sections focus on three forms of temporal control—busyness, punctuality, and rhythm—and each demonstrates…

On 19 July 2021, Nathan de Arriba-Sellier published an op-ed in Le Monde regarding the integration of climate change in the new monetary policy strategy of the European Central Bank (ECB).

Op deze pagina vind je antwoorden op veelgestelde vragen.

On this page you will find an overview of awards and prizes granted to our staff and students in 2026, as well as special appointments at Leiden University and other institutions.

Recente publicaties in de Leidse handboekenreeks zullen hieronder verschijnen.

Promotor: Prof.dr. P. Hooykaas, Co-promotor: Dr. R. Offringa

The filamentous bacteria Streptomyces are widespread inhabitants of terrestrial soils.

The increasing resistance of pathogenic bacteria to antibiotics necessitates the discovery of new medicines.

Promotor: G.P. van Wezel

Streptomyces bacteria are a valuable source of natural products, many of which are used in the clinic or in biotechnology.

Promotor: Prof.dr. G.P. van Wezel, Co-Promotor: E. Vijgenboom

The soil-dwelling, filamentous bacteria of the genus Streptomyces are renowned for their production of useful secondary metabolites including antibiotics. The work described in this thesis provides new insights on the role and regulation of antibiotic production and resistance in these bacteria.

Streptomyces are filamentous bacteria that produce more than two-thirds of known antibiotics.

Streptomyces are multicellular, Gram-positive bacteria in the phylum of actinobacteria which produce a high amount of bioactive natural products of which the expression is tightly coordinated with the life cycle.

Streptomyces are bacteria abundant in soil that participate in diverse and complex interactions. These bacteria are the main producers of the antibiotics we currently use in the clinic.

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.

Bacterial chemosensory arrays are protein assemblies that are the key structural and functional component for motile bacteria to sense their internal or environmental chemical signals.

Streptomyces are prolific producers of enzymes and secondary metabolites, including more than 50% of all clinical antibiotics. This makes them highly attractive for medical, biotechnological, and industrial purposes.

The ongoing increase in antimicrobial resistance combined with the low discovery of novel antibiotics is a serious threat to our health care.

Actinobacteria are well known for the production of bioactive natural products, many of which have applications in the fields of human, animal and plant health. Subject of this thesis are the anthracyclines, glycosylated aromatic polyketides with potent anticancer activity.

This thesis describes the structural and biochemical characterization of the β-lactamase BlaC from Mycobacterium tuberculosis (Mtb), and the Alr and YlmE proteins from Streptomyces coelicolor A3(2).Mtb is the main cause of tuberculosis.

Filamentous Actinobacteria, such as Streptomyces, produce a plethora of chemically diverse bioactive metabolites that have found applications across medicine, agriculture and biotechnology.

Promotor: G.P. van Wezel, Co-promotor: D. Claessen

Antibiotic-resistant bacteria pose a major health threat. Addressing this challenge requires among others the development of new antibacterial compounds. The research described in this thesis focuses on discovering novel antibiotics from soil bacteria, specifically Streptomyces and Paenibacillus.Despite…

Promotor: Prof.dr. G.P. van Wezel

The bacterial cell wall is a nearly universal structure that offers protection and gives the cell its shape. However, environmental stressors, such as cell wall-targeting antibiotics and hyperosmotic conditions, can induce bacteria to shift to a wall-deficient state. It is unknown whether the lack of…

Streptomyces present a valuable platform for natural product discovery. Lugdunomycin is a novel angucycline-derived polyketide from Streptomyces sp QL37, with unprecedented skeleton and antimicrobial activity.

This multidisciplinary project aims to deliver new antibiotics to target the WHO priority pathogen Klebsiella pneumoniae, one of the most dangerous pathogens in the clinic today.

Psychology Lab on Wheels is possible thanks to the support of our partners.