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.

As a result of the current corona measures, attendance at the Opening of the Academic Year on 6 September will be restricted to a maximum of 75 persons. The ceremony can, however, be viewed online by taking part in a video wall.

50 years ago Lauterbur published the basic principle of MRI. Sine then MRI has become more expensive. Professor Andrew Webb describes what is needed to make MRI available for everybody.

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…

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…

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…

Fifteen knowledge institutions and the Ministry of Education, Culture and Science have signed the covenant for Open Science NL. Leiden University has also joined the covenant, via the Universities of the Netherlands. This marks the start of the Dutch Research Council’s and brings the transition to open…

What is the role of academia in solving societal problems such as the corona crisis? Rector Magnificus Carel Stolker spoke about this at the opening of the academic year on 31 August.

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

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

Dutch knowledge institutions are taking steps to recognise and reward open science. On 13 December, the Open Science NL Steering Board approved a total of 1.2 million euros in grants to 23 institutions. The Centre for Science and Technology Studies (CWTS) will lead the national coordination of the local…

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

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.

On 10 October 2019, Janneke Vink defended her thesis 'The Open Society and Its Animals'. The doctoral research was supervised by Prof. P.B. Cliteur.

Seminar

Leer meer over de Educatieve Master Primair Onderwijs tijdens de Online Master's Open Dag van de Universiteit Leiden.

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…

Who are open-source intelligence activists and how reliable are their contributions to public understanding of Russia’s war in Ukraine?

Read more about the International Network Open Science & Scholarship Communities in our Vision and Mission statements.

Feedback from fellow students on academic writing is as informative as that of teachers.

Change requires community. Become a member of OSCL today!

Open Educational Resources (OER) have the potential to change teaching in Higher Education, but adoption is low despite the growing amount of resources available. The current project aims to investigate if and how teacher communities can foster adoption of OER in curricula.

A respectable 5,023 runners took part in the Leiden Canal Run on Friday 5 April. They raised the sum of €22,302 for various Leiden charities.

Rector Magnificus Carel Stolker expressed his support in the media for 'The Real Opening,' the protest against government cuts. 'The plans are a disaster for higher education.' Professor Remco Breuker, one of the organisers of this protest on 2 September, called in NRC Handelsblad for a stop to the…

Since the end of May, the Faculty of Humanities 'Humanities Matter' art route has been on display. Due to the many positive responses, we have decided to postpone the end date of the exhibition from July 8 to August 28. So if you haven't walked the route yet, this is your chance!

Are you considering studying a master's programme and are you wondering what Leiden University has to offer? Then join the Master's Online Open Days on 17 and 18 October 2024 from the comfort of your own home. Watch live presentations of the master's programmes of your interest. We also offer information…

Are you considering studying a master's programme and are you wondering what Leiden University has to offer? Then join the Master's Online Open Days on 17 and 18 October 2024 from the comfort of your own home. Watch live presentations of the master's programmes of your interest. We also offer information…

In een goedgevuld Teldersauditorium vond op maandag 24 juni het symposium ‘Het Erfgoed van Meijers: 70 jaar waardering en inspiratie’ plaats. Vanuit verschillende perspectieven werd gereflecteerd op de omvangrijke nalatenschap van de Leidse hoogleraar Eduard Maurits Meijers, die precies zeventig jaar…

Het boek met de titel ‘the story of constitutions’ probeert interdisciplinair te begrijpen waar de grondwet vandaan komt en waarom het juist nu in korte tijd viral is gegaan. Waarom is dit oeroude fenomeen de laatste jaren zo in populariteit toegenomen en ook nog eens in een tijd, waarin democratieën…

The 2020-2021 academic year has begun. The new academic year may have been opened in a pared-down ceremony, but a ceremony it was nonetheless, with around 150 guests in the familiar setting of Pieterskerk and around 1,000 people watching the livestream. ‘Universities will always exist, however rapidly…

On Tuesday 4 September, in a full lecture hall C1, Dean Geert de Snoo opened the Academic Year for the Faculty of Science. A year in which the ethics and responsibility of scientists will be invoked.

We are living in an information era where the amount of image and video data increases exponentially.

On 14 May 2020, Pieter Rustenburg defended his thesis 'Een algemene normtheorie toegepast op open normen in het belastingrecht'. The doctoral research was supervised by Prof. A.O. Lubbers and Prof. J.L.M. Gribnau.

The integrity and reliability of academic research are of fundamental importance to the University. All parties, both within the University and outside, must be able to have confidence that our research is conducted in a scrupulous, fair, verifiable, impartial and independent manner.

The integrity and reliability of academic research are of fundamental importance to the University. All parties, both within the University and outside, must be able to have confidence that our research is conducted in a scrupulous, fair, verifiable, impartial and independent manner. To make sure you…

What better place to look back at 444 years of Leiden University than at the faculty where we actually study our history? To celebrate this special year, a physical timeline about 444 years of Humanities has been crafted in the Lipsius building.

The treasure houses of Leiden's University Library and Naturalis house wonderful historical collections with dried plants and botanical drawings. Tinde van Andel, extraordinary professor of History of botany and gardens, studies these collections.