In mid-March 2020, the global coronavirus outbreak changed everything in the Netherlands. Staying at home as much as possible and the 1.5 metre rule became the standard. One year on, we reflect on the past year with four Leiden Law School ‘insiders’. What kind of year did they have? And what are their…

Getting out and exercising rather than slobbing on the sofa, breathing in fresh air instead of cigarette smoke and grabbing healthy snacks instead of junk food. In a new interdisciplinary Medical Delta programme, researchers are going to investigate how to help people live healthier lives. What are…

Cotton is the most widely used natural fibre for clothes. But how polluting are our jeans and shirts actually? Environmental scientist Laura Scherer coordinated an international research project on the impacts of cotton. ‘The purchases of consumers in Europe can contribute to water scarcity in China…

The financial sector, supply chains and ecology. Not necessarily topics you might associate with physics, yet it’s exactly what new professor Diego Garlaschelli is dealing with. The common thread? Complex networks.

Particularly during this time of social distancing and remote learning, it is important to carry on meeting new people – even if you don’t always feel like it after another day staring at your screen, says Wessel van Dam. In his role as assessor at the Honours Academy, Wessel represents the interests…

Over the past few years, citizen scientists from the Heritage Quest project have scoured the entire Veluwe and Utrechtse Heuvelrug areas for unknown archaeological heritage. One of the results of this research is that the number of known burial mounds in this area has doubled.

"Climate citizenship” explores how adapting environments to climate change can change the way people interact with each other and with government. It focuses on nature-based or 'green' climate infrastructure projects that make use of natural entities or dynamics. With an ERC grant, anthropologist Andrew…

Forty archaeology students are holding a shovel somewhat awkwardly in the fields at Oss. This is their first day of fieldwork and they are going to use muscles they didn’t even know they had.

Hester Bijl, the Rector Magnificus of Leiden University, was handed a ‘shockingly long list’ of names of missing Iranians in her office at the Administration and Central Services department on 13 December 2022.

Immunologist Leender Trouw specialises in the complement system, which is part of the immune system. In some diseases drugs help activate or inhibit this system. This is best done ‘in the right place at the right time’ − the title of his inaugural lecture.

A microscope with incredible sharpness that leaves samples unharmed – Guido Stam helped develop one. During his PhD research, he combined light and electrons to study biological samples. ‘We can now measure things that simply weren’t possible before.’

‘Silence in the corridor please’ are not the words you expect to hear on an open day attended by 5,000 students. From 12 studios in Leiden and The Hague, presentations are given during the Online Master’s Open Days telling students all about their future master’s programme.

How can we hack prejudice about age and ageing out of the recruitment process? That was the question data scientists, psychologists and HR professionals tackled during the AnyAge.AI hackathon. 'AI can actually be used to increase fairness in recruitment.

Rianne Scheerhoorn is a government trainee at the Ministry of Economic Affairs and Climate Policy and the Ministry of Agriculture, Nature and Food Quality. After completing her Bachelor's and Master's degrees in Public Administration, she was sure that the Central Government Traineeship Programme (Rijkstraineesprogramma)…

Training students to become medical professionals is an important task of a university medical centre. But teaching does not always receive the space and recognition it deserves. This needs to change, says Professor Alexandra Langers. Medical education is a profession in its own right.

In cities, parks take the blame for mosquito problems. However, the real issue is usually a few streets away. Drains and standing rainwater create ideal breeding grounds for larvae. As a result, controlling adult mosquitoes in parks makes little sense, says environmental scientist Louie Krol in his…

Depression in young people is often treated as an individual problem. But looking only at the child means that an important part of the story is missed, says PhD candidate Myrthe Veenman: ‘Parents can make a difference.'

Alumna Lisa Koolhoven is the granddaughter of a Rotterdam woman who experienced the ‘forgotten bombing’ of the city on 31 March 1943. Her friend Kristen Hayford has an American grandfather who served in the Air Force during the Second World War. In their podcast ‘Beb & Bob| Collateral Damage ’, they…

On 10 April, the Faculty of Archaeology will host the Symposium of Young Archaeologists (SOYA), a fully student organised conference dedicated to the theme Archaeology of the Margins.

Half of all people with cancer in the Netherlands are aged 70 or older, and as the population continues to age, this number will only rise. Yet vulnerable older people with cancer are often overlooked, says PhD candidate Joosje Baltussen.

Assistant professor Max van Duijn is the new chair of The Young Academy. He aims to support young academics, bring research closer to society and make academia more resilient.

Science thrives on freedom, safety, and stability. But what if these prerequisites are lacking? What if colleagues beyond our borders are threatened, persecuted or forced to flee?

Violence such as assault or head-butting causes pain, shock and distress. It is often seen as savage or senseless. But for those who commit it, violence has meaning, argues violence researcher Don Weenink in his inaugural lecture.

Astronomers in Leiden have used the Atacama Large Millimeter/submillimeter Array (ALMA) in northern Chile to produce a new detailed image of the centre of our Milky Way. This allows them to investigate the life of stars in the most extreme region of our galaxy. The Leiden scientists, led by Katarzyna…

Sandra Palmen studied tax law at Leiden University and built a career within central government, currently as State Secretary. She was one of the first to raise the alarm about the child benefits affair and is now righting the wrongs.

Four years of war in Ukraine have transformed the nature of warfare, with drones, digital defence systems and improvised solutions shaping the battlefield. At a recent symposium, Dutch and Ukrainian experts discussed frontline conditions. What lessons do they see for Europe?

The programme for the interdisciplinary and transdisciplinary event The Knowledge Orchard has been announced. This anniversary event consists of more than 20 sessions aimed at providing you with practical next steps in your interdisciplinary and transdisciplinary work. Register now!

Quantum technology has the potential to transform society. But how can you effectively inform the public about such complex and enigmatic science and technology? PhD candidate Aletta Meinsma explored this.

Karwan Fatah-Black, a historian at Leiden University’s Faculty of Humanities and senior researcher at the KITLV/Royal Netherlands Institute of Southeast Asian and Caribbean Studies, has been appointed as the UNESCO Chair holder in Comparative History of Slavery and the Transition to Citizenship.

Our constitutional democracy is under pressure. Politicians are increasingly bending rules and institutions to their will, often in small steps. PhD candidate Jorieke Manenschijn warns that through a combination of subtle changes we can cross a line without realising it.

Leiden scientists lead COLIBRE, a groundbreaking set of cosmological simulations. By including key missing physics, cold gas and cosmic dust, they offer the most realistic picture yet of how galaxies formed and evolved since the dawn of time.

Are international courts effective? Dr Fatou Bensouda, a former Lead Prosecutor of the International Criminal Court in The Hague (ICC), will discuss this issue during her lecture at the Owada Symposium 2025. The ICC’s efficacy depends on the actions of its member states, she says.

Jasper Knoester is the dean of the Faculty of Science. How is he doing, what exactly does he do and what does his day look like? In each newsletter, Jasper gives an insight into his life. On March 25, he has a busy day.

While the Netherlands was in lockdown because of the coronavirus, PhD candidate Koen Rijpkema began his research into the same virus. In the lab, he developed molecules that can inhibit an important viral enzyme.

In nearly every Dutch primary and secondary school classroom, at least one child is bullied. The common perception is that the most popular child in the class is often the bully, while less popular children are more likely to be bullied. Is this image accurate? Bullying researcher Mitch van Geel knows…

He brings order to chaos and analyses satellite swarms. During his PhD research, mathematician Oliver Nagy delved into random networks and how they reach equilibrium. Along the way, he also developed a handy tool. This knowledge is valuable for calculations related to communication networks.

The Leiden Ranking – Open Edition is completely transparent. The ranking compiled by the CWTS uses open data and publishes the algorithms that are used.

A surprising amount of life grows, crawls and flutters around Leiden University’s buildings. During the Biodiversity Challenge – from 30 April to 2 July – the campus will turn into a research site, and you’ll be the researcher. Grab your phone, take a look around and record what you see.

Maryam Alqassab, an assistant professor at ICLON (Leiden University Graduate School of Teaching), helps train new PhD supervisors and knows how demanding the role can be. When asked to contribute to an online handbook for PhD supervisors, she didn’t hesitate: ‘Everything supervisors do or are involved…

During a visit, Queen Máxima spoke with researchers about projects exploring climate change, collections and culinary heritage.

The bachelor’s programme in Dutch Studies marked its fortieth anniversary on 22 May with a festive gathering in Leiden.

Prof. dr. Pancras Hogendoorn is stepping down as dean of the Faculty of Medicine and vice-chair of the Executive Board of Leiden University Medical Centre (LUMC). He is also resigning from all associated secondary posts. Hogendoorn has taken his decision in anticipation of the findings of an inquiry…

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

With a symbolic basketball pass, the construction company handed over the new sports centre to the university on 1 December. The building is ready to be fitted out for use. From 9 February, all are welcome: to do sports or just explore.

How can we slow the progression of atherosclerosis? Researcher Amanda Foks believes the answer may be switching off ageing immune cells. This could lead to an entirely new treatment for heart attacks and strokes. She has been awarded an Established Investigator Dekker Grant by the Dutch Heart Founda…

In memory of Andrea Evers, Professor of Health Psychology, the Prof. Andrea Evers Fund for Health, Behaviour and Society has been established. With this fund, we aim to honour her deepest wish: to continue research that contributes to health, well-being, and a resilient society.

As every academic year, the leadership team of the Young Academy Leiden (YAL) is changing. Sarah Giest, Assistant Professor at the Institute of Public Administration, will be the new Vice-Chair. Annemarie Samuels, Asssociate Professor at Social Sciences, will be the new Chair. The Young Academy Leiden…

The Dutch police force has been deliberately storing personal data relating to millions of Dutch people for many years now. In doing so, the institution has been knowingly breaking the law. Bart Schermer, Professor of Law and Digital Technology expressed his concerns on Follow the Money – a platform…

Rüya Akdağ is part of a research team with the aim of further studying social anxiety. The Leiden psychologist receives the grant for her doctoral research on the role of emotions and cognition in the emergence and occurrence of social anxiety in adolescents.