'Een nieuw commentaar op de Grondwet' is the title of a book published this week. The book uses 35 essays to describe the importance of the Constitution to the Dutch democratic rule of law.

Experimental physicist Tjerk Oosterkamp and theoretician Hans van Leeuwen conduct research on the exact mechanism behind ice skating. De Volkskrant published a news item about it during the opening weekend of the Olympics.

The James Webb Space Telescope has found evidence of carbon dioxide (CO₂) in the atmosphere of a giant planet 700 light years away. This result provides insight into the composition and formation of this gas giant and shows what James Webb is capable of. The research by the international group of astronomers,…

Joseph Callingham from the Leiden Observatory receives the Louise Webster Prize for outstanding post-doctoral research. The prize is awarded by the Astronomical Society of Australia for Callingham’s search for the most extreme object in the Universe.

Photographs of sacred rituals and ceremonies in Asia by Bangkok-based photographer and author Hans Kemp can be seen in the front hall of the Leiden Town Hall from 27 June to 19 August 2019. Here a sneak preview.

Early November, a delegation of the Faculty of Science visited two Indonesian universities to shape the collaboration in bioscience. The Faculty also opened a new Indonesian office in Yogyakarta.

For nine years he worked on the three-volume standard work Plant Galls of Europe. It yielded 2300 pages about 10,000 species of European galls, abnormal outgrowths in plants caused by parasites. Hans Roskam from the Institute of Biology Leiden: ‘The abundance of galls says something about the natural…

Having to remind users of the café at the University Sports Centre (USC) about the 1.5 metre rule is something that can be quite difficult for the students who work there. Even more so since the restrictions on outdoor sports have been lifted. The students are now taking a course to show them how it's…

Our annual "Science to Experience" exhibition of student works is hosted by the V2_ Lab for the Unstable Media. This year's theme is "LIVING".

This week, Leiden University celebrates the fifteenth year of its world-class International Criminal Law Summer School. The International Criminal Law Summer School has convened every year since the creation of the International Criminal Court, guiding scholars and practitioners in this rapidly developing…

On Friday evening 17 September, Leiden astronomer Joe Callingham can be seen in a new series on Discovery channel. Killers of the Cosmos is about different deadly dangers lurking in the depths of space. Asteroids, cosmic debris, electromagnetic weapons… The show takes a film-noir approach to these threats,…

Tracking early human behaviour through plant processing and -exploitation.

Former PhD, Bachelor and Master students of the Van Exter Lab

In this project the already developed parcel based historical GIS (HISGIS) for the Dutch province of Friesland (Frisia) will be extended with a series of crucial datasets and map layers.

All players on the world stage operate strategically in order to safeguard their interests. Political scientists at Leiden University cast light on this volatile interplay of forces. Their research helps voters, NGOs, governments and international organizations make smart choices in this complex and…

Data sets available for scientific/research purposes.

The acquisition and administration of the possessions of the “Teutonic House” in Utrecht, and its dependencies, in the Middle Ages until c.1600.

The CEES Centre regularly hosts (guest) lectures, roundtables, and film screenings.

An Investigation into the role of copper-alloy craft production in the early medieval economy of northwest Europe.

Lodewijk Petram, author of the book 'The World's First Stock Exchange', discussed the rise of the Amsterdam stock exchange in the 17th century in the ninth Hazelhoff Guest Lecture.

Evolutionary and ecological interactions affect species on genetic and phenotypic levels. This theme aims to understand these processes at multiple levels: from molecules to genomes to populations and to communities. Our research focuses on evolutionary responses to anthropogenic change, the role of…

Promotores: G.R. de Snoo, B. Sinsin, Co-Promotor: H.H. de Iongh

The van Exter group has an extensive history of prior research in classical and quantum optics. As former part of the group of Han Woerdman, we have studied topics as diverse as:

The Cleveringa chair was installed by Leiden University in memory of Professor Rudolph Pabus Cleveringa and the courage he demonstrated in November 1940 during the German occupation . It also commemorates the liberation of the Netherlands in 1945.

Human AI is where artificial intelligence and machine learning meet philosophy, cognitive science, and the creative arts. Examples of research questions in this domain are: 'Can an algorithm be creative by human standards?', 'Can creative processes, such as composing music or writing poetry, be modelled?',…

The Journal of Global Slavery (JGS) aims to advance and promote a greater understanding of slavery and post-slavery from comparative, transregional, and/or global perspectives. It especially underscores the global and globalizing nature of slavery in world history.

Leiden University and the University of Amsterdam, together with Heritage Leiden and Region, are developing a map application of historical Leiden.

The Republic of Indonesia celebrated its 75th Independence Day on 17 August 2020. As a gift to celebrate this, on the initiative of a group of Leiden alumni*), a biography will be written of Leiden and Indonesian scholar Hoesein Djajadiningrat.

Speech Prosody 2024 includes several poster sessions, the description of which you can find below.

Lecture

The Faculty of Humanities has nominated Alexandra Nagel with her research thesis for the Praemium Erasmianum Foundation Research Prizes 2021. The Prize focuses on the humanities, social sciences and law.

On 21 and 22 April 2022, Vanessa Mak participated in the conference 'Transformation of Consumer Law' at the University of Warwick, organised by Christian Twigg-Flesner and Hans Micklitz.

The seminar is dedicated to the research and work in progress of Leiden Centre for Continental Philosophy staff and doctoral students. It also welcomes guest speakers.

In 2022, many of our staff and students won fantastic prizes and were awarded important research grants.

An overview of awards and prizes granted to our staff and students in 2021, as well as special appointments at Leiden University and other institutions.

Leiden biotech startup Azafaros has successfully completed a funding round, raising 25 million euros of investments for developing treatments of rare metabolic disorders. The company holds exclusive license to a library of novel patented compounds discovered by experts from Leiden University.

The first of April was the official start of Phase II of the collaborative “PCAD4Cod”-project on the effect of sound on fish populations. Hans Slabbekoorn, associate professor at the IBL, is the principal investigator and collaborates with three PhD-students, Dr. Erwin Winter, (Wageningen Marine Research),…

Three speakers, three fascinating science stories and a well-filled lecture hall. The Niko Tinbergen Lecture had a successful restart on 10 December 2019.

Researchers from Leiden see hungry villagers in the north of Cameroon steal meat from the prey of lions. The researchers from Leiden University's Institute for Environmental Sciences (CML) reported on this kleptoparasitism in the online publication of the African Journal of Ecology in July.

An overview of awards and prizes granted to our staff and students in 2020, as well as special appointments at Leiden University and other institutions.

Lecture

The Dutch X-omics Initiative has received seventeen million euros from NWO as part of the National Roadmap for Large-Scale Infrastructure. Leiden University’s metabolomics research led by Thomas Hankemeier is one of the participators.

Farmers on the outskirts of Nairobi National Park protect their livestock using flashing lights on top of the animal enclosures. This system keeps lions away at night. Leiden research has shown that the method is both simple and effective. Publication in PLOS ONE.

The distinguished academic journal Science published an article about an important and extensive series of measurements made by the Centre for Isotope Research (CIO) of the University of Groningen. The measurements concern the dating of a lake bed sediment in the Suigetsu Lake in Japan.

Leiden and Jülich researchers discovered an elegant and simple approach to improve the sensitivity of graphene biosensors. These so-called ‘next generation graphene electronic biochemical sensor devices’ are able to detect very low amounts of HIV DNA thanks to their very low electronic noise.

On the 1st of October a new project funded by the Joint Industry Programme (JIP) started at the IBL on the potentially negative effects of sound on fish. Behavioural biologist and bioacoustic specialist Dr. Hans Slabbekoorn leads the international research team.

‘This trip gives you the chance to experience at first hand what you learn about in your study programme,’ says Lars Moll, third-year student of Middle Eastern Studies, and one of the students who joined the April excursion to Istanbul organised by Professor Hans Theunissen from Leiden's Department…