A stable home situation is important for the successful return to society of prisoners. So what is their home situation like? And what effect does it have on reoffending? PhD defence on 16 January 2020.

In this dissertation, matching, entropy, holes and expansions come together. The first chapter is an introduction to ergodic theory and dynamical systems.

How do we get better at detecting research errors? And how do we ensure that we no longer see those errors as evidence of our inability, but as keys to better and more reliable research? Scientists offer advice during the third Psychology Connected.

First publication with authors from a Dutch university on the most cited ACM list

In his biography about Professor Rudolph Cleveringa, Kees Schuyt adds to the image we already have of this famous Leiden professor. The overriding focus is generally on Cleveringa’s protest speech against the Nazis, while his later Resistance work carried much greater risks. And we also shouldn't forget…

University ceremony

From virtual education to a friendly meeting place where refugees and Dutch students can get to know one another. Investing in refugees is in the interest of the whole of our society. This was the message of the students who opened the Academic Year of Leiden University on 5 September.

Je onderdompelen in de wereld van de lobby. Dat kan op donderdag 10 november tijdens de Nacht van de Lobbyist, een publiek event dat de Universiteit Leiden en de Public Affairs Academie voor de 2de keer organiseren. Vijf vragen aan initiatiefnemer Bert Fraussen, universitair docent bij het Instituut…

Psychologists Anna van ‘t Veer and Eiko Fried will start a scientific integrity workshop tour after the summer, called Responsible Scholarship: Psychology. Their aim: giving the subject a more prominent position in the academic’s mind.

The brightness peak of the ring around M87's supermassive black hole has shifted 30 degrees counterclockwise in a year. This is shown by new images released by the Event Horizon Telescope consortium.

China is a one-party regime, yet elections are held for the local congresses. PhD candidate Wang Zhongyuan investigated how the Communist Party uses this democratic instrument to strengthen the authoritarian regime. PhD defence 31 January.

Scientists have developed a material that breaks one of the fundamental principles governing many physical systems. Ordinary materials transmit external forces equally, no matter where the pressure comes from. The newly developed material breaks this rule and could potentially be of interest in soft-robotics…

Children will be able to return to school in the near future, but students from Leiden University are not that fortunate. For the rest of this academic year, they will attend their courses online. To support one another in this period of isolation, honours students have shared their tips and ideas in…

Lecture

It is exactly one year ago that the university had to close, bang in the middle of the academic year. Suddenly, on that third Monday in March, we found ourselves at home, working and studying online – many of us from that cramped attic or student room. The momentous coronavirus year in pictures.

The new open access book The Science of Citizen Science bundles insights into science that is conducted together with citizens, to promote this growing form of science.

The Elephant Marsh is one of the biggest wetlands in Malawi and many of the country’s inhabitants rely on it for their small-scale fishing catch. To make their small fisheries sustainable and future-proof, the government has to support the fishing community and not impose too many regulations. This…

Following the elections for the University Council, the new student party ONS has won five seats, LVS two and CSL one. All the parties in the staff section have retained their seats. The turn-out was low for both staff and students.

Migrants are expensive. Or are they? Professor Olaf van Vliet collaborated on a big research project from Leiden University to map the costs of migration. During the last episode of this season of the podcast Open Geesten (Open Minds), he talks about the initial results. Do migrants really put a lot…

Educational programme Universe Awareness (UNAWE) is one of HundrED's 100 Global Inspiring Innovations in Education. This was announced on 4 October 2017 at the HundrED Innovation Summit.

De Faculteit Governance and Global Affairs (FGGA) heeft een facultair team opgesteld om invulling te geven aan Academia in Motion (AiM).

Seminar

Are you passionate about building a better world? Do you want to connect with the young world leaders of today and tomorrow? If so, apply for the One Young World Summit in The Hague, to be held from 17 to 20 October 2018! Leiden University is sponsoring two tickets. Mayor of The Hague, Pauline Krikke,…

The public disclosure of documents under the Dutch Open Government Act (Woo) is often delayed, especially when the information is considered socially or politically sensitive. Dr Annemarie Drahmann, Associate Professor of Constitutional and Administrative law, explains the case on platform for investigative…

Toen in 2019 honderden afvalcontainers in de Waddenzee vielen, wilde de overheid geen informatie vrijgeven over wat er in de containers zat. Vijf jaar later weten we eindelijk meer, nadat hoogleraar Esther Kentin beroep deed op de Wet Open Overheid.

A group of early career scientists have written a code of ethics through an initiative of the World Economic Forum. Chemist and co-author Sander van Kasteren explains its importance: ‘We want to show that we scientists have our own inherent morals too, and that we too are part of society.’

Seminar

On 12 April, Annemarie Drahmann, Associate Professor at the Department of Constitutional and Administrative Law of Leiden Law School, was one of the speakers at a debate organised by platform for investigative journalism Follow the Money to discuss closed government.

The European Rule of Law Conference 2025, hosted by re:constitution at the Berlin Social Science Center (15-16 September), brought together scholars, practitioners, and civil society to critically examine the challenges facing democracy and the rule of law in Europe and to explore ways of shaping their…

Alumni event

Webinar

Land van Ons, a cooperation that buys agricultural land for the restoration of biodiversity and landscape, and Leiden University join forces. Together, they will investigate over a longer period of time which agricultural management leads to the best restoration of biodiversity. The research will start…

The Dutch biotech start-up In Ovo is the first company to develop a large-scale solution for determining the sex of a chick while it is still in the egg. This fast and cheap technique can be applied mechanically at hatcheries, which was not possible before.

The Netherlands generally performs above average in the protection of personal data, according to research carried out at Leiden University. Germany is the leading country, while countries such as Italy and Romania are lagging behind.

VVI Research Meeting 2023-2024