Two Leiden Science researchers received an NWO-XS grant for their research. Both projects are highly promising, but also high-risk. Macrophages that trap bacteria and data storage made from 2D materials convinced the board of their potential.

Over the coming years, LUCL will be collaborating on the development of Macroscope, a new scientific infrastructure that maps social change at the population level. Professors Gijsbert Rutten, Stephan Raaijmakers and Carole Tiberius tell us more about the project.

Hackers have got their hands on data from the Royal Dutch Football Association (KNVB). Lockbit, a collective of cybercriminals, is after the money. What now?

This practical guide is aimed at PhD candidates, Research Master Students, and early-career researchers from all academic disciplines. The instructions in the guide intend to inspire young researchers and to help them practice Open Science, by sharing all aspects of research as open possible.

How anonymous is an individual in a social network? And is it possible for hackers to extract sensitive information from data? These were the main topics of the hackathon organized by POPNET and the Central Bureau of Statistics (CBS) on May 3 at the Leiden Institute of Advanced Computer Science.

At some point in the deep past the first known dwelling structures were built out of mammoth bones in a country we now know as Ukraine. Archaeologist Wei Chu would have visited the site in summer 2022, were it not for the war. Now he has received funding from SNMAP with the aim to better establish the…

Security

Assistant professor Rogier Creemers of Leiden University discusses in The Economist the vulnerabilities in China’s handling of personal data.

Research

On 31 January 2014 Professor Willem Heiser (Psychology, Statistics and Data Theory) was awarded the distinction of Knight in the Order of the Dutch Lion. After his farewell lecture he received the royal honour for his exceptional academic, social and administrative achievements.

Pensions not tailored to the self-employed, working mothers with stagnant salaries and people unable to find work due to incapacity. Pim Koopmans was recently awarded a PhD from Leiden University for his research on these issues and the corresponding financial risks.

Crucial information about research, funding or how university rankings are created is often not freely accessible. The Barcelona Declaration on Open Research Information calls for such information to be made open. Professor Ludo Waltman is one of its initiators. What needs to change?

Better health for all the residents of The Hague region. This is the mission of Health Campus The Hague – formerly LUMC Campus The Hague. Eight partners – the LUMC, Leiden University, the municipality of The Hague and five healthcare institutions (see box) – are collaborating intensively in healthcare…

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…

Henk Hoekstra and Alessandra Silvestri work on the astronomy and theoretical physics in the Euclid mission. These Dutch researchers are part of the mission.

ICT

Data from 41 million galaxies does not shake up the standard cosmological model after all. To that conclusion, to their own surprise, comes an international team of researchers including Koen Kuijken, professor at the Leiden Observatory.

ICT, Security

It may look a little weird: you spot a person pressing their nose to a tree, clipboard at the ready. That is our PhD student Tim Claerhout, who is carrying out fieldwork!

As of 1 April 2025, Professor E.A.L.M.G (Elke) Moons has been appointed professor by special appointment of the chair ‘Crime Statistics’ at Leiden University’s Institute of Criminal Law and Criminology at Leiden Law School.

Researchers from Leiden University have developed a method to predict which sellers will be successful in illegal online marketplaces. This could help the police track down big players on the dark web, the hidden part of the internet.

Two Leiden researchers have been awarded a Consolidator Grant by the European Research Council (ERC). This grant of up to 2 million euros will enable them to continue and develop their research.

ASTRON en de Universiteit Leiden beginnen samen een nieuwe leerstoel over sterrenkunde en AI. Bijzonder hoogleraar Joeri van Leeuwen gaat deze positie vullen.

On February 15th 2018 former students in Methodology & Statistics (M&S) of Leiden University share their current and previous professional activities to provide M&S students an insight into their career perspectives.

To increase the accuracy of climate models, it is crucial that they include past human land-use and human-driven vegetation changes. Here archaeology can make an important contribution. Current models are based on reconstructions of past vegetation. However, their accuracy is limited because it does…

Education

How can we use new digital technologies in research and teaching? And how far are we in developing independent cloud solutions? These questions took centre stage at Our Digital Future, where the university, the LUMC, Leiden University of Applied Sciences and Naturalis met to share their expertise.

Elise Dusseldorp has been appointed Professor in the Methodology and Statistics of Psychological Research. In the same way that she spends her spare time rambling through the forest, as a professor she sifts through colleagues’ research data. ‘I often come across information that doesn’t appear in the…

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.

‘Violence as a Population Health Problem’ is one of 33 interdisciplinary projects that have been launched thanks to a Kiem grant. The project team will analyse a large patient database to identify links between violence and other health problems. ‘Violence can also be an expression of other factors,’…

A unique multicenter study, including about 3,500 youth between 10 and 25 years old from across the globe, shows that artificial intelligence - specifically machine learning - is able to identify individuals with anxiety disorders based on their unique brain structure.

Why do violent incidents occur in prisons? And how do staff respond? Assistant Professor Esther van Ginneken will use a grant from the NWO Vidi Talent Programme to conduct research into these and other questions. She intends to make use of virtual reality.

Matthijs van Leeuwen and Frank Takes have been appointed directors of education at LIACS as of 1 September. They will succeed Marcello Bonsangue, who has held the position since 2016. Van Leeuwen and Takes have been appointed for a period of four years.

Digitalisation can make a huge contribution to a greener future, but it must also be as sustainable as possible. To make significant progress, more collaboration and national leadership will be needed. Leiden University has therefore signed the Digital Sustainability Manifesto, which was presented on…

A time-lapse of the universe in more detail than ever before: that’s the aim of the NSF–DOE Vera C. Rubin Observatory in Chile, which will unveil its first images of the night sky on 23 June. Researchers at Leiden Observatory have played a major role in making it all possible.

Over a period of seven years, researchers from the International Brain Laboratory mapped 279 brain regions at the cellular level. Their findings are now published in Nature, with both data and software openly shared. Cognitive neuroscientist Anne Urai: 'Any researcher with a good question can make use…

Research

Exploitation of smaller game is rarely documented before the latest phases of the Pleistocene, which is often taken to imply narrow diets for earlier hominins. In a study now published in Scientific Reports, a team of German and Dutch archaeologists present new data that contradict this view of Lower…

Library, Organisation, Research

From choosing the right tools to locking your screen when you go to get a coffee: it’s often the little things that help you work securely. With our campaign ‘Check it: work privacy and security smart’, in the coming month we are focusing on protecting our information and data, including personal data.…

Investigation services and cyber criminals both make grateful use of the opportunities offered by digital technologies. Both groups' use of these services leads to breaches of privacy for citizens. The current legislation falls short in providing protective measures, is the conclusion reached by Professor…

From predicting Alzheimer’s to the growth of organisms: psychologist Marjolein Fokkema’s algorithms can be used in many disciplines. They also provide inspiration for her songs, theatre shows and life lessons. What drives this rocking researcher?

‘We can only achieve this if we work together.’ This is what Rector Magnificus Hester Bijl emphasised as she spoke about professional research support at the opening of the second Research Support Conference at PLNT on 14 June. For the 80 research support staff present, learning and inspiration was…

A new AI model will soon be able to predict the risk of infection in postoperative patients. This will allow healthcare providers to take preventive measures and detect complications at an earlier stage.

The Dutch Research Council (NWO) is investing 197 million euros in 11 infrastructure projects that will be of great value to science and society. Leiden University and the Leiden University Medical Center (LUMC) are participating in eight of the eleven proposals.

PhD candidate Julia Wąsala searches for greenhouse gas emissions in satellite data. As a computer scientist, she bridges the gap between computer science and space research. ‘We really can't do this research without collaboration.’

Our banking, DigiD and sensitive medical data: what if our entire digital infrastructure can no longer be trusted? Jelle Don has this question permanently in mind as he goes about his research. And that is no bad thing because without new digital security measures, our society will be extremely vuln…

With the new Euclid satellite, scientists are going to map a large part of the sky. The satellite ofthe European Space Agency (ESA) will soon give them a better view of the galaxies and matter in the universe. Professor of Galactic Astronomy Koen Kuijken and a team of Dutch scientists are receiving…