The effectiveness of the skin barrier underlies the outer layer of the skin: the stratum corneum (SC). However, in several skin diseases this barrier is impaired. In two inflammatory skin diseases, atopic eczema and Netherton syndrome, an increased level of monounsaturated fatty acids (MUFAs) has been…

On 9 January 2019, Marieke Wierda defended her thesis 'The Local Impact of a Global Court: Assessing the Impact of the International Criminal Court in Situation Countries'. The doctoral research was supervised by Prof. dr. C. Stahn en Prof. dr. L.J. van den Herik.

In this article, Ben de Jong, research fellow at the Institute of Security and Global Affairs, examines the relationship between double agents and their handlers.

Plants and soils from natural ecosystems harbor great diversity of soil microorganisms, which could potentially contribute to the sustainability of horticulture. The knowledge about using wild plant species and soil from natural ecosystem to improve the crop health will advance the application of ecological…

This collaborative project aims to explore the history of the concept “barbarism” in Europe from the 18th century to the present, with a particular emphasis on the role of literature and art in the concept’s shifting functions.

The Vallesian, 11.1-9 Ma, was a special time in the Vallès-Penedes basin near Barcelona, where a biodiversity hotspot existed. Europe had a subtropical climate, with rhinos, forest giraffes, lions, hyenas, flying squirrels and primates.

A deceptively simple, complicated paper

This dissertation provides a comprehensive overview of the grammar of Bantawa, a Kiranti (Rai) language spoken in Eastern Nepal.

This book is the first systematic analysis of the changes in the use of goods and services by households of Black South Africans since the early nineteenth century.

Students Sjors Keijzer and Kasper van Alphen won the finale of the Student and City film competition on 29 June. Their promotional film puts Leiden on the map as the best student city.

From 6-9 July, a group of young students from Edith Stein College, Rijswijk Lyceum and the Johan de Witt School travelled to New York City as part of the Van Aartsen Honours Program to present their visions of the UN to the Permanent Mission of The Netherlands. Read Alanna O'Malley's report of the t…

The three-day conference will be held at the Ministry of Antiquities in Cairo from the 29th of September until the 1st of October 2019 with the title: The Walking Dead II: The Making of a Cultural Geography. It is organized by the Dutch National Museum of Antiquities (RMO) and Leiden University.

Research on this theme addresses the systemic risks faced by European societies and affecting the quality of life of European citizens.

Microbes influence and respond to other organisms. This theme explores the dynamic relationships within plant and animal microbiomes, and the immune responses that govern host defense. Using model systems such as zebrafish, insects, and plants, we investigate fundamental processes and engineer microbes…

Who wouldn’t want their own episode of Het Klokhuis? Researchers Milica Nikolic and Chris Riddell are in the running for the Klokhuis Wetenschapsprijs, which aims to introduce a broad and young audience to scientific research in the Netherlands.

For the first time, astronomers have managed to take a photo of a supermassive black hole and its shadow. They used the Event Horizon Telescope (EHT), a worldwide network of eight radio telescopes that together form a virtual telescope the size of the earth. The news was presented in six press conferences…

The way genes are folded determines their activity in our body. Leiden biophysicists are now the first to unravel this structure molecule-by-molecule. Publication on December 1st in Nature’s Scientific Reports.

Ionic liquids are important in scientific research because they can apply a lot of charge over a surface. Leiden physicists have now found that the charging process of ionic liquids purely depends on opposite charges attracting each other. Chemical reactions are sometimes involved, but not essential.…

Since mid-October Marina de Regt (VU Amsterdam) resides at NVIC as our 2025 NWIB Visiting Professor. Nearing the end of her time in Egypt, she shares here her experiences of the past months.

At the end of October, the Steering Committee, headed by Dean Mark Rutgers, gave the green light for the development of the new Faculty Strategic Plan for 2021-2026. How does this process go?

Smooth platinum electrodes roughen and wear when subjected to repeated cycles of oxidation and reduction, which causes nanometer-scale mounds to grow. Leiden chemists Leon Jacobse and Marc Koper, together with physicist Marcel Rost, discovered the exact details, using a unique tunneling microscope.

Recently the book “Privaatrecht 2050. De weg naar ecologische duurzaamheid” is published.

Documenting and preserving rock art in the Pakistani Himalayas; this was the aim of the ‘Karakorum Rescue Project’ to which students at the Honours College Archaeology contributed. A Leiden exhibition visualises the project: ‘There is something magical about it.’

Een orang-oetan lacht niet gauw hard om een video waarin een soortgenoot dat ook doet. Een peuter doet het meer dan een volwassene, een Japanner weer iets minder. Chris Riddell leerde uit zijn vele experimenten ook dat geduld loont. Hij promoveert 16 september.

The person who cried out at Dam Square on Remembrance Day in 2010. For Michiel van der Wolf this marked the rise of a new phenomenon: that of ‘confused people’. Because since that Remembrance Day, the number of reports of ‘confused people’ in the Netherlands has increased rapidly in the statistics.…

Ben Wielstra strives to unravel the evolution of balanced lethal systems. On 1 February he started his own lab at the Institute of Biology Leiden. Wielstra is one of five researchers at Leiden University who has been awarded an ERC Starting Grant in 2018 by the European Research Council. ERC Starting…

The brightness peak of the ring around M87's supermassive black hole has shifted 30 degrees counterclockwise in a year. This is shown by new images released by the Event Horizon Telescope consortium.

On 15 June 2023, the book presentation for the ‘Panta Rhei: recht en duurzaamheid’ (Panta Rhei: law and sustainability) was held at the Oude Sterrenwacht in Leiden. The book provides an overview of research in the field of sustainability conducted at Leiden Law School and was compiled by Yvonne Erkens,…

From 12 – 16 May, prof. Fokkens and five RMA students (Kiki de Bondt, Jordy Aal, Mette Langbroek, Gwendolynn de Groote and Bastiaan Steffens) visited Cambridge for a two-day workshop with prof. Marie Louise Sørensen, staff and students of Cambridge University, and a number of the members of the Cambridge…

On Tuesday 19 March, Chris Suijker (Director of Real Estate) handed over the key of the Herta Mohr Building to Saskia Goedhard (Executive Director of the Faculty of Humanities), officially transferring the management of this building to the Faculty of Humanities.

Eveline Crone has been selected for the Distinguished Scholar Award of the Social & Affective Neuroscience Society (SANS). 'It's very special to get recognition from your peers in the United States.'

Kerstin Fischer and Angus Johnston were exchange students in Leiden in 1995. Sparks flew when they met at a Leiden International Student Club party, but then they lost touch. They met again 19 years later and the flame was rekindled. A Leiden love story – with a bit of a delay.

Microorganisms that temporarily ‘go to sleep’ play an important role in the evolution and survival of a population. Mathematician Shubhamoy Nandan conducted research on the effect of this characteristic called ‘dormancy’ in a novel mathematical model.

A new two year MA track was launched at the Europaeum Spring School in Oxford on May 18th 2013.

On Monday 28 March, Salina Ben Ali visited our University to tell her emotional story. She told about how her 19 year old son was recruited by IS, left for Syria and died there 'as a martyr'.

Recently Professor Joanita Vroom’s book Feeding the Byzantine City was published by the prominent academic publishing house Brepols. This volume is the fifth in a series called Medieval and Post-Medieval Mediterranean Archaeology, of which she is the editor. ‘This series aims to offer new perspectives…

On an excavation site in Oegstgeest Leiden University archaeologists discovered a very rare silver bowl from the first half of the seventh century. The bowl is decorated with gold-plated representations of animals and plants and inlaid with semi-precious stones. The discovery suggests the existence…

Psychologists Fenna Poletiek and Erik de Kwaadsteniet have received a grant from the FNV trade union to research people’s attitude to work if they receive a basic income. How do they plan to find answers?

Barbarism: from the 18th century to the present.

In this article, Bart Schuurman and Sarah Louise Carthy conduct further research into the understanding of the causes of terrorism by assessing differences and similarities between left-, right- and jihadist extremists and terrorists. The article draws on the Analysen zum Terrorismus, one of the most…

G protein-coupled receptors (GPCRs), one of the largest families of membrane proteins, are responsive to a diverse set of physiological endogenous ligands including hormones and neurotransmitters.

Promotor: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon

The university campus at the Leiden Bio Science Park is flourishing. A new book tells the stories behind this remarkable metamorphosis.

This year the PhDs of the institute had their traditional day out (uitje) to The Hague. The last two years they had stayed in Leiden, so The Hague already seemed like quite the adventure. Indeed, it seems almost that as time progresses and more and more archives become digitized, history PhDs slowly…

Do you know a children's book fanatic? According to the Griffel-jury, 'Rekenen voor je Leven' (Calculating for your life) by Science Communication Professor Ionica Smeets is highly recommended. The book was awarded a silver ‘Griffel’, one of the highest awards for Dutch children’s literature. And that…

On Thursday the 17th of February, from 13h00-17h00, Chris Wickham (Oxford University) and Leslie Brubaker (University of Birmingham) will give two lectures at the Radboud University. This will be an in-person event, held at the Thomas van Aquinostraat 1, room 1.10.06 in Nijmegen. For those unable to…

On 4 April 2024, a meeting of the standing committee of the Dutch House of Representatives was held. At this meeting, Anna Marhold, Assistant Professor at the Grotius Centre and Wim Voermans, Professor of Constitutional Law, informed the committee about the economic and legal implications of a military…

The headline of the Financial Times on 5 May – 'Northern Ireland tensions threaten to derail Brexit long-term EU-UK deal' – was greeted as a blast from the past. This blast from the past led to the EU requesting to set up an office in Northern Ireland. Joris Larik, Assistant Professor at Leiden University…