Door aangescherpte verlofregels kunnen gedetineerden niet met verlof, terwijl dat hun re-integratie bevordert.

For the first time, a court has ordered a company to reduce its carbon dioxide emissions. Lawyers see it as a landmark ruling that will have far-reaching consequences for Shell and possibly also other similar companies.

Social

Een delegatie van Nagasaki University bracht eind mei een bezoek aan de Universiteit Leiden.

The United Nations Committee on the Rights of the Child (CRC) has accused Finland of violating the rights of Finnish children by leaving them in life-threatening conditions in Syrian camps. Ann Skelton, member of the committee, calls the situation 'inhuman'.

Ornately decorated head pieces and jewellery, images of imposing mosques and photos of local people. The 'Splendours of the Silk Roads' exhibition depicts life and different cultures along this important trade route.

Finance

Last Wednesday was the official deadline for students to apply for one of our master’s programmes. Some of our master’s programmes, such as History, organised a last call Q&A for students.

Dennis Janssen has been appointed as Director of Operations for the Leiden Observatory. He succeeds Dominique de Vet who temporarily held the position. Janssen currently works as a program manager Leiden Research Support within Administration and Central Services and will start his new role on 18 No…

During the 36th Scientific CardioVascular Congress, which was held last November in Amsterdam, Marie Depuydt from the BioTherapeutics division received the 2nd prize in the WCN research competition for her work (Vereniging Werkgroep Cardiologische centra Nederland (WCN)).

In the end, the weather gods were on our side so that all outdoor activities at the faculty beach party could go ahead as planned.

Updated walking instructions, and refreshed texts and questions. After six years, the Leiden math trail has been revamped. From high school students to mathematicians: everyone can walk the route to their heart's content again.

On Thursday 17 February 2022, a mid-term review was held for the Advanced LLM programmes Air and Space Law, European and International Business Law, International Civil and Commercial Law, Law and Digital Technologies, International Children’s Rights, European and International Human Rights Law, Public…

ICT, Research

Tjerk Oosterkamp of the Leiden Institute of Physics managed to do the first-ever measurement of gravity on a tiny particle - just 0.43 milligrams - where the quantum regime starts. He explains in Physics World why this is so challenging.

Hundreds of millions of Chinese workers have moved from the countryside to the city. This social transformation has birthed a tradition of migrant worker poetry, professor Maghiel van Crevel states in Jacobin.

Bart Krans, Professor of Private Law and Civil Procedure, spoke about ‘procedural agreements and ex officio application of EU law’ at an international seminar that was held at the University of Bergen in June. The results of the seminar will be published in 2023.

Soon you will have graduated, and then what? Maybe you've been dreaming of becoming a psychologist for years, but don't want to know where to start. In this episode, clinical psychologist and lecturer Sepideh Saadat tells you how to go about it.

The Dutch Heart Foundation will fund a new nation-wide consortium, AtheroNeth, consisting of preclinical and clinical scientists in the field of atherosclerosis research. AtheroNeth aims to identify novel biomarkers that can be applied to stratify patient groups at risk for acute cardiovascular events…

Education, Research

Minister Silvania of Curaçao has announced that Germaine Rekwest, who was awarded a PhD from Leiden University in September, will support him on treaty policy for Curaçao. The minister announced this in his travel report.

Can you only have psychedelic experiences by taking magic mushrooms? Not according to Aidan Lyon, philosophical researcher at the Institute of Psychology. In this episode, he explains other ways through which we can reveal our minds in insightful ways.

In 2017, at the start of the Rutte III cabinet, tax scholars Leo Stevens and Koen Caminada presented a blueprint for a new tax system. Today, four years on, they observe that the cabinet has put little effort into innovations in the area of tax.

On 30 June, the Center for Law and Digital Technologies of Leiden University (eLaw) will hold the annual Hans Franken Lecture. This year, the lecture will be held by Jan Kleijssen, the recently retired human rights director at the Council of Europe. The title of the lecture is: 'AI and Human Rights'…

Children’s clothes are full of cute, fun and cool animals. Researcher Michiel Hooykaas investigated which animals were most prevalent, to see how cultural product can influence the knowledge of biodiversity.

This pandemic has affected everyone and especially students who were not able to carry out their projects on the laboratories. I am an international student from Cyprus and I had the opportunity to perform my Research Project 1 completely remotely, at Rawi Ramautar’s group. Even though, this may sound…

Organisation

Egbert Jongen is appointed Professor of Economics and Socio-Economic Policy at Leiden University from 1 November 2023. His expertise is in the field of socio-economic policy, inequality, and the labour market.

In its session of 15 April 2024, the Austrian Academy of Sciences elected professor Petra Sijpesteijn as one of its new Corresponding Members.

As of 1 July, Marcellus Ubbink is the new Scientific Director of the Leiden Institute for Chemistry. He will succeed Hermen Overkleeft, who led the institute since 2017. Ubbink has been appointed for a period of four years.

Prisoners who have little or no contact with the outside world are more prone to reoffend. What makes visits so important?

The Young Star Award is awarded annually to a student who completed his or her bachelor’s thesis at the Faculty of Science of Leiden University. The prize was installed by Prof. Ewine van Dishoeck in 2019 and consists of a prize of 2,500 euros. Each of the bachelor’s programmes at our Faculty may nominate…

The Neumark-Nord 2 site in central Germany, dates back to 125,000 years ago. During an interglacial period with temperatures similar to those today, Neanderthals where doing something we previously thought happened only tens of thousands of years later.

Associate Professor Gianclaudio Malgieri (eLaw – Center for Law and Digital Technologies) and Professor Margot E. Kaminski (University of Colorado Law School) have published a new article in the very prestigious Yale Journal of Law & Technology, titled Impacted Stakeholder Participation in AI and Data…

Episode 5 of BOLDcast, the podcast of the Leiden-Delft-Erasmus Centre for BOLD Cities, discusses the evolution of libraries from simple lending points for books to places where people can come together and brush up on their digital skills. The guests in this episode are Frank Huysmans, associate professor…

On Sunday, November 9 2025, Prof. dr. Sarah Cramsey presented a film at the “Eastern Neighbors” Film Festival in The Hague.

As of 1 September, Pim Overgaauw is appointed as Institute Manager of the Mathematical Institute. The job is not new to him, as he has been ad interim institute manager since March 2022. For now, Overgaauw will be working for the MI three days a week, but it is expected that this can be extended to…

At the end of 2024, the Netherlands Environmental Assessment Agency stated that it is “highly unlikely that the Netherlands will achieve its statutory climate target of a 55 per cent reduction in emissions by 2030”. This is partly due to setbacks in policy implementation and measures that have been…

On 28 June, a group of 35 students (13 from Leiden) visited the law faculty as part of the Space Summer School, a 5-day course organised by the LDE Centre 'Space for Science and Society' and NL Space Campus.

Education, ICT

Martina Vijver talks about the impact of pesticides on nature in many Dutch media outlets. This news is now also covered internationally. In Chemical & Engineering News, Vijver argues periodical reassessments of pesticides are crucial to prevent unexpected harm to nature.

Last November, Dr. Natalia Ortiz, Martijn Bemelmans (MSc), and Prof. Laura Heitman published a review in Trends in Pharmacological Sciences (TIPS) on targeting the chemokine system in cancer (https://doi.org/10.1016/j.tips.2021.08.001). The review was written in collaboration with Prof. Tracy Handel…

On 25 May, Professor Paul Abels retired as professor by special appointment. Abels has been working as Professor by special appointment Governance of Intelligence and Security Services at the Institute of Security and Global Affairs since 2017.

Kai Hebel explains how the 1975 Helsinki Accords shaped European diplomacy and why their spirit remains urgently relevant in an era of renewed geopolitical in the Guardian.

The coronavirus crisis had a major impact on the judicial system in the Netherlands: courts closed at the start of the pandemic and instead held virtual hearings. Research now shows that things did not always go smoothly.

Phage therapy is a novel yet unmatured therapeutic approach in the face of the crisis of antimicrobial resistance (AMR). Dr. Tingjie Guo received a grant from the Elise Mathilde Fund and the LUF to develop innovative phage-antibiotic combination treatment strategy for combating AMR.