Open access (OA) refers to academic output that is freely available online, without restrictions. This hugely increases the visibility of research.

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…

The remains of Dutch East India Company forts are scattered throughout littoral Asia and Africa. But how important were the specific characteristics of European bastion-trace fortifications to early modern European expansion?

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…

Integrating life cycle assessment (LCA) with life cycle costing (LCC) offers the opportunity to simultaneously analyze the environmental and economic aspects of product alternatives, for the integration of which a unified computational has been proposed by Heijungs et al. (2013) [1]. The project aims…

Thousands of curious students and parents are visiting the Open Day on 5 March. How do they get a good idea of the study programmes and the city?

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.

The Schoof cabinet has several plans that are just not legally feasible. Yet they are often still forced through, knowing, or even hoping, that the courts will intervene. This is dangerous policy that in the long run even undermines trust in politics, the judiciary, and the law itself, argues Armin…

Promotores: H.A. Udo De Haes, P.M. Brakefield

Dr. Vlad Niculescu-Dincă (Institute of Security and Global Affairs) has been appointed a Knight of the Order “Merit for Education” through a decree of Romanian President Klaus-Werner Johannis.

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

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Bacteria caught red-handed, deeply frozen just as they were about to cause Lyme’s disease. Ariane Briegel is wildly enthusiastic about the wonders she observes thanks to three elements: a freezing technique, a camera-equipped microscope, and AI. ‘It’s fascinating. Every single cell is different.’

Ad IJzerman, Emeritus Professor of Pharmacochemistry, was made a Knight of the Order of the Lion of the Netherlands on 26 April. He was presented with the royal honour by Mayor Elbert Roest in the town hall in Bloemendaal.

No matter where you come from, life in the Netherlands will be a little (or a lot) different to your home country.

What are the main factors associated with the stranding of the two seal species? What are the factors influencing the prevalence of disease in the two species? Which human-related factors influence the populations of the two seal species?

Learning to cycle without a handbrake, saying sorry if you're late for a lecture and fathoming out the weird sounds of Dutch. Leiden's new international students get a crash course in Dutch culture during their introduction week.

Are you interested in studying South and South East Asian Studies at Leiden University? To have an impression of the student life, see the overview of a typical day out of the life of Yaska Sahara, first-year student.

Are you interested in studying Arts, Media and Society at Leiden University? To have an impression of the student life, see the overview of a typical day out of the life of Zofia, first-year student.

How were Spanish commanders fighting in the Low Countries between 1567 and 1577 portrayed in Spanish and Dutch narrative sources during the Eighty Years War?

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

The opening times of the Humanities buildings vary. The Lipsius building is opened during evenings as well, the other faculty buildings retain office hours.

For our students, studying in The Hague can make a big difference. The Hague is proud to be known as the international city of peace and justice. The city is full of opportunity and is a fantastic student city.

What is it like to study Urban Studies in The Hague? Sonia Dobkowska, second year student, describes what a typical day looks like for her.

In the early modern period women played a prominent role in crime. At times they even made up half of all defendants. Female criminality was a typically urban phenomenon. Why do we find so many women before the Dutch criminal courts?

The opening of the Academic Year 2020-2021 took place on Monday 31 August 2020 in Pieterskerk church.

The opening of the Academic Year 2018-2019 took place on Monday 3 September 2018 in Pieterskerk church.

Emeritus professor Liesbeth Eurelings-Bontekoe received the royal award from the Deputy Mayor of Amsterdam for her great contribution to the quality of care, especially to clinical and health care psychology.

The opening of the Academic Year 2019-2020 took place on Monday 2 September 2019 in Pieterskerk church.

The aim of the Indonesian-Dutch Literature Collective (which is allied to the Society of Dutch Literature (MNL)) is to support research into the literature of and about the Dutch Indies, from the era of the Dutch East India Company to the present. Starting in 1986, the collective has published its own…

The opening of the Academic Year 2017-2018 took place on Monday 4 September 2017 in Pieterskerk church.

The opening of the Academic Year 2016-2017 took place on Monday 5 September 2016 in Pieterskerk church.

Is there extra-terrestrial life out there? It now looks as though we can sketch out an answer to this enduring question. Leiden Observatory is helping to build new instruments to find the most promising exoplanets.

Are you intending to become a student shortly? And are you unsure about what you're going to study? If so, come to the Open Day on 15 October.

What is it like to study International Studies in The Hague? Read how Vincent, student of International Studies, spends his day on average.

On Sunday 28 October, the annual open day of the Old Observatory in Leiden takes place. During this day everyone can visit the Old Observatory for free and enjoy activities in this historic building.

On Sunday 28 October, the annual open day of the Old Observatory in Leiden takes place. During this day everyone can visit the Old Observatory for free and enjoy activities in this historic building.

On 1 October 2022, Reijer Passchier was appointed as Professor Digitalisation and the Democratic Constitutional State at the Open University. Reijer is also working at Leiden University as Assistant Professor at the Department of Constitutional and Administrative Law.

How geographical and institutional openness in Dutch Guiana fostered a unique colonial economy. This publication is part of the Early American Places Series.

Research report January 2020. Supported by the lectorate ‘Music, Education and Society’, research group ‘Making in Music’, Royal Conservatoire The Hague

From the new street language Smibanese to 17th-century manuscripts: the first national Dutch Studies Open Day explores a wide range of topics. The Open Day will take place on Saturday 7 March in Leiden. Frits Spits will broadcast his radio programme ‘De Taalstaat’ (The Language State’) from the Kamerlingh…

In recent years, the use of primary data in terrorism research has increased. In order to maximise the benefits of this trend, we want to encourage terrorism scholars to implement open science practices more systematically. This article therefore presents different avenues towards open and reproducible…

Dr. Foks obtained this fellowship for the project “Can promotion of efferocytosis induce regression of atherosclerosis?”, in which she aims to identify novel targets to promote regression of atherosclerosis. This research grant allows her to initiate independent research for the next three years.

The Opening of the Academic Year 2024 will be held in Pieterskerk on Monday 2 September. This year’s theme is ‘Science for Policy’. Students, staff and anyone else who is interested are welcome.

On 9 May 2018, Roy van Keulen defended his doctoral thesis 'Digital Force: Life, Liberty & Livelihood in the Information Age'. The doctoral research was supervised by Prof. dr. A. Ellian.

On Wednesday 28 September 2022, the Opening Ceremony of the European Law LL.M. took place on campus at Leiden Law School. Following Dr Ben Van Rompuy and Professor Jorrit Rijpma’s warm words of welcome for the incoming students, Dr Vasiliki Kosta presented two student prizes from the preceding academic…

Promotores: Prof.dr. G.R. de Snoo & Dr. R. Heijungs