Biodiversity in the Netherlands is having a tough time. Professor of Natural Capital Koos Biesmeijer combines research with practical advice: from the greening of industrial parks to solutions inspired by hi-tech nature. Inaugural lecture 9 March.

Voor zowel archeologen, paleontologen en geologen als vrijwilligers in de archeologie en paleontologie is het geen verrassing meer dat op de stranden van de Nederlandse kust fraaie vondsten gedaan kunnen worden. Vele artikelen, boeken, tentoonstellingen, congressen, lezingen, ‘zoekdagen’, krantenberichten,…

In higher education, Open Educational Resources (OER) are available for anyone to use, but they are not widely used.

Damien van Puyvelde and Fernando Tabárez Rienzi examine the evolution of Open-Source Intelligence (OSINT).

What the Sex Lives of Bugs, Birds, and Beasts Tell Us About Evolution, Biodiversity, and Ourselves, Menno Schilthuizen reports from the front lines of evolutionary biology, on a quest to make sense of the origins, workings and evolution of our and other species’ reproductive selves.

This project launches a research program into the theoretical status and the terminological basis of evidentiality systems.

Getting your bachelor’s degree in Holland? Visit Leiden Universities Bachelor’s Open Day and explore which bachelor’s programme might suit you best.

This focal area is concerned with studying and promoting openness of research information, for instance information about the outputs and activities of researchers and research teams. It also focuses on the use of open research information to support evaluation and policy making in science.

On this page you find all the ways through which the Institute of Psychology aims to foster Open Science.

In the podcast series 'Open Geesten', historians Joost Welten and Nadia Bouras tell us about their research and how history is intergrated in modern society. In short: what can the past tell us about the present?

Met AI kunnen nieuwsredacties razendsnel beelden genereren — maar tegen welke prijs? Dit onderzoeksrapport opgesteld door prof. dr. Jaap de Jong, dr. Astrid Vandendaele, Maartje van der Woude en Stef Arends (Universiteit Leiden), baseert zich op 59 interviews met beeldmakers, redacteurs en experts uit…

This projects investigates spatial relations between soils and other resources and the urban layout of a classic Maya center in Campeche, Mexico.

Why does the textural gap between the music that one can improvise and that which one can practice and learn to play (as in completely written-out music) seem to be bigger in the case of the guitar than, for example, in that of keyboard instruments?

BE-OPEN is a structural project funded under the Erasmus+ Capacity Building in Higher Education action. The project is coordinated by the University of Novi Sad, Serbia. The main objective of the project is to develop conditions for the implementation of the core principles of Open Science at universities…

Met de val van Balkenende IV laait de discussie over het functioneren van politieke partijen binnen ons democratisch bestel weer op. Opgeblazen ego’s, overambitieuze politici en partijpolitieke machtspelletjes zouden echte democratie in de weg staan. Maar die discussie is niet nieuw.

De positie van kunst en kunstenaars in de westerse samenleving

The NVIC library is a public, academic reference library. Entrance is free—no membership needed—and offers access to our book collection and two reading rooms, which have a WiFi connection. It is not possible to borrow books from our library.

The concept behind GraspOS is to build the European Federated Open Metrics Infrastructure in a decentralised way, where: different types of data come together to create metrics; tools and services are developed to improve EU or global infrastructures but are also shared with national or institutional…

The final meeting which took place on Wednesday 6 September marked the end of the third cohort of master students’ time participating in the The Hague Southwest Thesis Workshop. During this last meeting, master students presented their research results to residents and stakeholders from The Hague So…

Opening hours are based on local time. On national and Moroccan holidays the NIMAR is generally closed.

Leiden University investigates biodiversity not only in the Netherlands, but also abroad, with the goal of improving global nature conservation. We do so in collaboration with local universities. Education is also high on our agenda.

This project, under the supervision of Prof. Dr. Hans van der Plicht, comprises several studies aimed at the use of isotopes occurring naturally in organic material as tracers for both the climate change and its cultural impact at about 6200 BC. The research will be carried out by the co-applicant at…

In the master’s programme in Archaeology, you can follow courses on the archaeology of Europe, deepening your understanding of the continent’s long history.

Studies on Ancient West Asia in Honour of Peter M.M.G. Akkermans

The Open Science Lab bundles expertise on Open Science at CWTS and contributes to and studies the transition towards Open Science at CWTS, Leiden University, and beyond. It serves as a knowledge broker, facilitator, and platform for learning and exchange.

Jasper de Bruin, Guus Besuijen, Hans Siemons & Jeroen van Zoolingen (2012). De romeinse nederzetting bij het tegenwoordige Goedereede heeft waarschijnlijk een belangrijke functie gehad in de overslag en distributie van diverse goederen, waaronder keramiek en voedingsgewassen. De opgraving van deze nederzetting…

Leiden University has an Open Access policy and a Copyright Information Office.

Leiden University has an Open Access policy and a Copyright Information Office.

Leiden University policy requires researchers to make all their Leiden-affiliated peer-reviewed articles available.

Lidstaten negeren steeds vaker gemaakte afspraken wanneer het hen uitkomt, waardoor de grondbeginselen van de VN meer dan ooit onder druk komen te staan. In een recente VN-spoedvergadering hekelde topman Guterres de lidstaten en zei dat ‘het handvest geen menu á la carte is.’ Niels Blokker, emeritus…

OSCL is a learning community where anyone associated with Leiden University can learn and talk about open science practices. Example events are Open Science cafés, workshops, and walk-in-hours. The what Open science is an umbrella term for an approach to science that aims to make scientific…

Want to study abroad? Visit the Master’s Week of Leiden University and find which master's programme taught in Leiden or The Hague is right for you.

The opening of the Academic Year 2025-2026 took place on Monday 1 September 2025 in the Pieterskerk church.

De online cursis begint op maandag 12 november en de inschrijving is nu geopend.

The Dutch prefix ge- in historical perspective gives first of all a general account of the development of the word formation processes involving ge- in which special attention is paid to the participial ge-.

Study information