OPERA aims at establishing open and advanced research analytics practices and systems at Danish universities and in the Danish landscape of research analytics stakeholders.

PathOS aims to contribute to a better understanding and measurement of Open Science impacts and their causal mechanisms. This is pivotal in order to develop effective OS policy in the EU (European Union). It will do so by collecting concrete evidence of OS effects, by studying the pathways of OS practices,…

The aim of this study is to further develop the Open Science Monitor, which started as a pilot study.

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

Debate, Lunch

At Leiden University, we see open Science as the way to make a greater scientific and societal impact. There is also great momentum across the Netherlands for open science, and for good reason.

Open Access is an international development that aims at making research free and accessible for everyone. LUCAS supports the ideals and principles of Open Science. We are therefore hoping that all colleagues will be willing to contribute to the fulfilment of these ideals. But we realize that the developments…

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

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

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…

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

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?

Please follow the links below to the open MSc or PhD positions:

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.

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…

In September 2021 the CWTS open science policy came into effect. This policy deals with open access publishing, open research data, and open source software. All research projects carried out at CWTS are subject to the CWTS open science policy.

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…

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.

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.

Study information

Study information

The opening of the academic year 2022-2023 took place on Monday 5 September 2022 in Pieterskerk Church.

It is advisable to open Dutch bank account once you move to The Hague (if you do not have one already), as it will allow you to get many other services such as a mobile phone contract, transportation, etc.

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

We develop open micro cavities to trap light in small volumes and thereby increase the interaction with intra-cavity emitters. Important aspects in this development are the optical penetration in the mirrors, coupling between optical modes, and scattering and clipping losses.

Positive expectations can influence sensations of itch and evoke placebo effects, whereas negative expectations can trigger nocebo effects in itch. There is evidence that placebo effects can occur even when people know that they are taking a placebo. Little is known about how these so-called open-label…

Didactics, Career development

On this page you'll find the recordings of the programme presentations held at the Leiden University Bachelor's Online Open Day of 7 October 2023. Perhaps you joined this event and would like to rewatch the presentations or are curious about ones you didn’t see the first time around. Or you haven't…

Lots of efforts are being made to promote open science practices in scholarly publishing. However, information on the openness of scholarly journals is highly fragmented. There are various data sources that provide information on specific aspects of openness, but there is hardly any integration of these…

Combining results from bibliometric analyses, a global sample of researcher opinions and case-study interviews, a new report reveals that although the benefits of open research data are well known, in practice, confusion remains within the researcher community around when and how to share research…

In July 2022, Leiden hosted the ESOF conference.

Join the OSCL community to share your experience and learn more from others at Leiden University

De opening of the Academic Year 2021-2022 took place on Monday 6 September 2021 in Pieterskerk church.

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

Leiden University offers support in the different stages of your research lifecycle.

Promotores: Prof.dr. B.R. Katzy, Prof.dr. K. Sailer (Munich University)

De opening of the Academic Year 2022-2023 took place on Monday 5 September 2022 in Pieterskerk church.

Open online education has become a highly popular method of education. The current project aims to further our knowledge of how open online courses can be best designed to be consistent with human learning mechanics and facilitate meaningful learning.