Using an innovative method, psychologist Loes Janssen and colleagues measure how long and how often parent and child are close in daily life, and how they experience that togetherness. The researchers combine ‘Bluetooth low energy beacons’ with the smartphone app Ethica to track participants' physical…

Expert in public affairs and politics Arco Timmermans advised the informer Kim Putters.

The law and Artificial Intelligence (AI) applications need to be better aligned to ensure our personal data and privacy are protected. PhD candidate Andreas Häuselmann can see opportunities with AI, but dangers if this does not happen.

Being rejected always hurts, but so does having to reject someone. Social psychologists have discovered that at interviews to select suitable housemates students dehumanise candidates to make it easier to reject them. That may sound harsh but, according to the researchers, it is also logical.

The sustainable production of hydrogen could potentially be made more efficient by adding a cleverly chosen salt to the process. Researchers at the Leiden Institute of Chemistry (LIC), in collaboration with physicists at the University of Twente, have discovered that the type of salt present in the…

Various meetings will be held over the next few weeks to discuss organisational development at Leiden University. On the agenda are a vision of organisation and management, an exploration of the central services organisation and a teaching logistics programme.

Working towards resilient communities, transparency in science and connecting with the employment market – these are the three key themes being addressed by the departments of Social and Behavioural Sciences at Dutch universities. On 11 February, they presented a joint sector plan to Marcelis Boereboom,…

Petr Steindl works on quantum dots in microcavities for his PhD research. He manipulates single-photons to create complex structures of light. Applications could include quantum communication and gates for quantum computers.

How adolescents perceive parenting is related to their mood. Differences between the perspectives of parents and adolescents are also of importance for adolescents’ mood. That is what research by Loes Janssen and her Leiden University colleagues in Clinical Psychology shows. Open Access publication…

Since a few months, Executive Director Niels Laurens no longer has to divide his attention between two faculties but has been able to fully focus on FGGA. A conversation about the dynamics within our Faculty, his management style, and the steps we will all have to take together to improve issues such…

The book ‘Geleerde Zorgen: twee eeuwen academische geneeskunde in Leiden’ (‘Learned Care: two centuries of academic medicine in Leiden’) was presented on 16 December to Annetje Ottow (President of the Executive Board of Leiden University) and Pancras Hogendoorn, Dean and member of the Executive Board…

On Thursday afternoon, 6 October, Lara Wierenga, Anne Urai and Niels van Doesum kicked off the first edition of Psychology Connected, a recurring event organised by the Science Committee, where big questions and small conversations easily alternate.

2021, again, sees a rich harvest of bachelor theses in Political Science. Students have been tackling fascinating subjects—ranging from European solidarity in the COVID-19 crisis to the representation of women in democratically elected parliaments—and crowning their research projects with interesting,…

As well as offering students a first-rate education, Leiden University provides a wide range of training for professionals, so they can be lifelong learners. And that is not just of value to participants. ‘As a university, you start a dialogue with society to achieve better knowledge together.’

The new interdisciplinary bachelor's program in Science for Sustainable Societies starts in the 2025-2026 academic year.

Turning down the heating is good for the climate and the energy bills. But there are also a lot more ways of saving energy. In October, the University put out a call to staff and students, asking them for their golden energy-saving tips. The best entries have now been rewarded with a warm snuggle hoodie…

If you want easy answers to governance questions, you might as well abolish democracy, says Dr. Carola Schoor. A democracy should challenge and raise questions. For a balanced and just rule of law, a 'rule of law compass' is needed.

During World War II, the Nazi’s ordered a coastal defensive line to be built from the south of France to Norway. This Atlantik Wall aimed to defend their territories in continental Europe from an Allied naval invasion. The defensive line went right through the Dutch city of The Hague. The material remains…

The appointment of Alex Geurds as Professor in Central American Archaeology reinvigorates an existing focus within the faculty. 'The research chair offers opportunities to make cross-connections, across departments and disciplines.'

That the tax authorities are allowed to impose taxes is widely known. What is less well known is when the tax authorities must impose taxes. And what to do when one set of regulations requires the tax authorities to impose taxes while other regulations prevent them from doing exactly that? Vergouwen’s…

Innovative, future-proof teaching methods were the theme of the tenth Leiden Teachers’ Academy Education Conference that took place on 5 June.

As part of the course 'Masterclass at the Court of The Hague', twelve law students spent several days at the court with judges, court lawyers and legal advisers over the course of seven weeks. At the final session on 13 March, they presented their experiences.

'You’ll know right away when you meet your true love’ or ‘Opposites attract’: Some persistent beliefs exist about love and attraction, but are they true? Researcher Iliana Samara investigates the dynamics of attraction and explains which love myths we can let go of.

How do we deal with large sources of greenhouse gases? Do schools provide a socially-inclusive environment for all children? And how can we protect Earth’s nature? These questions have two things in common: they are complex global challenges, and data can help answer them. Mitra Baratchi is computer…

Third-year cultural anthropology student Claire van Helder (24) says she can't be kept still. She has her own blog, is active on Instagram and recently started a YouTube channel. She is a member of the student party LVS, elected to the faculty council and will become the president of WDO in September.…

Elise Sarton is using her inaugural lecture to give her field of anaesthesiology a chance to take the limelight for a change.

At a time when the climate crisis demands global action, Leiden University College’s (LUC) research project REFloC (Resilient Ecosystems and Flourishing Communities) in Ghana is choosing a different path: listening closely.

What developments preceded modern Standard Dutch? PhD candidate Iris Van de Voorde conducted research on ‘pluricentricity’, or the idea that language norms arise in different places and spread outwards from there. PhD defence on 19 April.

Following in the footsteps of Professor Jan Zaanen, visiting fellow Louk Rademaker is exploring quantum effects in so-called strange materials. His research is paving the way for new materials that could be used in emerging technologies.

Would you like to share your research with the outside world, but don’t know where to start? Approaching the press yourself or posting on social media can seem overwhelming. PhD candidate Elise Filius decided to take the Academic Outreach course.

In haar boek ‘Diensten met geheimen’ vertelt Willemijn Aerdts hoe de AIVD en MIVD te werk gaan. En ontkracht ze ook een paar mythes.

Good research means looking beyond disciplinary boundaries, said Professor of Molecular and Cellular Biochemistry Remus Dame in his inaugural lecture on 10 May. Processes that take place on DNA shouldn’t only be researched in a test tube but also in living cells, for instance.

It takes some getting used to, but Maarten Hijzelendoorn is no longer the Blackboard boss: he will now inform researchers about data management. From now on you can turn to Minke Jonk for all of your questions about the new Learning Management System Brightspace. We interviewed them together.

Adolescents with good friendships experience fewer anxiety and depression symptoms, PhD student Iris Koele discovered in her research on high school students' social relationships. 'As a psychologist, I include friends in the treatment plan: who do you call when things are not going well?'

Anyone who wanted to get an impression of the Dutch East Indies between 1800 and 1945 quickly turned to travel literature. Large groups of readers devoured non-fiction accounts of the island empire on the other side of the world – and were given a one-sided picture. Most of the sources that reached…

Sharing scientific data, transferring money, or sending other sensitive information online: with cryptography, applications make sure your data does not fall into the wrong hands. Mathematician Thomas Attema (CWI/TNO/Leiden University) helps with this. For his PhD research, he developed a new technique…

Proton therapy is a new way of treating cancer in which radiation doses are delivered more precisely. This results in less damage to surrounding tissue and fewer side effects. Professor Marco van Vulpen is medical director of HollandPTC in Delft, where the social value of this therapy is studied. Van…

The Leiden African Studies Assembly (LeidenASA) held its Annual Meeting on 12 December. LeidenASA is the network of Leiden based Africa-researchers. Fifteen researchers gave pitches on their projects, and sketches of Leiden University's Africa strategy were outlined.

You might take photos and selfies with your phone's camera, or scan a QR code. But there is much more you can do with it. Astronomer Olivier Burggraaff developed a phone attachment that allows you to take measurements of surface water with your smartphone. He will receive his PhD on 13 December.

Education

The Schoof cabinet has presented its budget. As expected, higher education is facing severe cuts. In the coming period, the Executive Board will regularly look at the consequences of what it deems an irresponsible policy.

Psychologist Ellen de Bruijn studies the effects of hormonal fluctuations on behaviour and on the brain over a woman's life course. With an ERC Consolidator grant, she and 3 PhDs and a postdoc will further her EEG research on the different stages at which girls and women experience strong hormonal f…

An evolutionary 'trap' that has haunted crested and marbled newts for 25 million years: Leiden researchers have uncovered a mysterious DNA error that should not be able to arise – yet persists all the same. How is that possible? PhD candidate James France found new clues.

The fight against insurgents, guerrillas and resistance movements is an ‘incredibly unpopular’ topic with experts and military personnel, says Professor by Special Appointment of Military History Thijs Brocades Zaalberg in his inaugural lecture. He warns that ignoring these forms of irregular warfare…

The Schoof cabinet has presented its budget. As expected, higher education is facing severe cuts. In the coming period, the Executive Board will regularly look at the consequences of what it deems an irresponsible policy.

What’s at stake at the NATO summit in The Hague? Three academics from Leiden share their insights.

We are pleased to announce a call for papers for a conference focused on ethical practices in medical research and treatment in the colonial and postcolonial context.

On December 16, 2023, our respected and beloved former colleague prof.dr.ir. Bert Peletier passed away.

The most important group of medieval manuscripts from the Special Collections of the University Libraries of Leiden (UBL), the Codices Vossiani Latini, is now available in open access via the Digital Collections. The 324 Latin manuscripts copied in medieval Europe, along with 48 post-medieval manuscripts,…

The university is launching a campaign to focus extra attention on our smoke-free university locations. The University is using aptly named cigarette barrels to try to show clearly just how many cigarette filters are being saved from the environment. How harmful are these cigarette filters to the e…