How do classroom demonstration experiments help students learn chemical reasoning? Marie-Jetta den Otter, PhD student at ICLON, researched this. She defends her thesis on 6 December.

Medicines do not follow the one size fits all principle, because genetic differences can influence their efficiency. That is what research by PhD candidate Julia Hillger shows. She defends her PhD dissertation Take it Personal on Thursday 7 December.

On 8 and 9 June, the second edition of EU Cyber Direct’s Closing the Gap conference took place at the Egmont Palace in Brussels, Belgium. This year’s edition was organized by François Delerue and Dennis Broeders as part of their participation in the EU Cyber Direct project, of which the Institute of…

Bioenergy with carbon capture and storage (BECCS) is a promising method for removing carbon dioxide (CO2) from the atmosphere and simultaneously generating energy. Yet this method is controversial, as it may require a great deal of land and water. Researchers at Leiden University have now proposed a…

The proportion of professors at Leiden University who are female has risen slightly to 32.0%. These are the results of the Women Professors Monitor 2024 released by the Dutch Network of Women Professors (LNVH). This puts Leiden University above the national average of 28.7%.

Professor Kees Waaldijk presented the report on the LawsAndFamilies Database to Pearl Dykstra, member of the High Level Group of Scientific Advisors of the European Commission on 25 April. This comparative study shows that in European countries same-sex partners are increasingly gaining equal rights.…

Can trees adapt to (climate) change? Which trees are more or less capable of doing so, and why? A group of researchers from all over the world set to work on these questions. Professor of Environmental Biology Peter van Bodegom helped to classify the functional traits of tree species. These are for…

Leiden criminologists have co-developed an artificial intelligence technology that tracks firearms incidents by scanning over 350 news sources.

From the research Terrorist threat in the Netherlands, the risk perception and opportunities for risk communication (Leiden University) shows that the Dutch respond relatively sober to attacks in neighboring countries and the possible risks of a terrorist threat. Half of the respondents believe that…

How to get a PhD position is clouded in mystery. In one afternoon, Peter van der Putten and Maarten Lamers talk about how (they think) the game is played.

Cut marks on the bones of bears show that people in North-West Europe used bearskins to keep warm 300,000 years ago.

Team leaders and other immediate supervisors play an important role in facilitating inclusiveness within public organisations. This is the finding of research by public administration expert Tanachia Ashikali. PhD defence 20 November.

There is too much focus on online radicalisation, says Joe Whittaker, when this is just one of the factors that make someone become a terrorist. In fact, Whittaker’s research shows that terrorists who use the internet are less successful in achieving their goal than those who stay offline. He will defend…

What is dark matter? How do supermassive black holes form? ‘Primordial’ black holes might hold the answer to these long-standing questions. Leiden and Chinese cosmologists have identified a new way in which these hypothetical objects could be produced just after the Big Bang. Publication in Physical…

Do you want to show that sustainability and business can work well together? And are you ready for a challenge? If so, you can sign up for the Sustainable Business Battle, a six-week business case challenge in which teams of students help companies find innovative and sustainable solutions.

IBL-researcher Phil Elks in the group of Annemarie Meijer won the Cell Observatory Publication of the Year 2013. He received the award for his paper in PLoS Pathogens, showing that activation of hypoxia signaling protects against mycobacterial infection.

Many children eat too many high-calorie foods and too few vegetables from an early age. PhD candidate Merel van Vliet researched the role of parents in this. ‘Don’t force children to clean their plates.’ PhD defence on 15 June.

Tapping to a rhythm, recognizing sound patterns and enjoying music: For people, it is common sense. But is this also the case for animals? It is the research topic of Michelle Spierings, a researcher at the Institute of Biology Leiden, and it is nominated for the Klokhuis Wetenschapsprijs.

Mysterious protein fibers show up in the brain cells of people suffering from Alzheimer’s' disease and other neurodegenerative disorders. Leiden physicist Louise Jawerth has been awarded a Vidi grant to find out how these fibers form in the first place.

Spitting cobra venom composition has been influenced by defensive behaviour according to an international research team. This may have originated from the arrival of human ancestors. Students at the Institute of Biology Leiden made an important contribution to the study. Publication in Science on 22…

To relieve a patient's pain, it can be effective to induce expectations. This finding is promising for optimising the effectiveness of treatments, conclude Kaya Peerdeman and colleagues in their article in PAIN.

Zijn corona-complotten waanzin? Jelle van Buuren, universitair docent bij het Institute of Security and Global Affairs van de Universiteit Leiden, discussieert in de online talkshow De Groene Live #25 vanuit Pakhuis de Zwijger over dit thema.

Are maps objective or do they convey hidden messages that you would miss at first glance? A map is always a simplification of reality. Mapmakers reduce, distort and select. This allows the reader to be guided literally and figuratively. Leiden University Libraries (UBL) and the Museum Volkenkunde jointly…

A day at the beach, games, a visit to an embassy and a pub crawl. The activities at HOPweek help new students get to know not just The Hague but each other too.

The first Leiden Science Family Day on Saturday 6 October was a great success. During the ‘Weekend of Science’ more than 700 visitors, including 350 children, visited the Faculty of Science. With a program full of experiments, lectures, guided tours and demonstrations, visitors were given a glimpse…

Recent study led at the Leiden Observatory has observed Orion with unprecedented detail. New data from the Atacama Large Millimeter/submillimeter Array (ALMA) and other telescopes have been used to create this stunning image showing a web of filaments in the Orion Nebula. These features appear red-hot…

During a closing exhibition, participants of the Master Honours Class 'Leiden: City of Refugees?' present their invitation to an imaginary group of 'others'. By combining science with art, students learn to look at society in a different manner.

The brief removal of Rein Dool’s ‘cigar-smoking white men’ painting generated a storm of reactions last November. Students, staff and alumni reflected on this at a symposium on Friday 26 May.

Terracotta pottery, precious ikat fabrics and the bazaars where these goods are sold: all these can be seen in a new Louvre film premiering on Friday 9 December. University lecturer Elena Paskaleva collaborated on the film Uzbekistan a timeless journey in Central Asia about Uzbek artefacts.

Video projections in contemporary art are convincing not because they depict reality, but because they show new possibilities within that reality. Artist Sophie Ernst demonstrates this in a thesis and an exhibition. She defends her PhD on 8 December.

A piece of corrugated rubber can function as a simple computer, displaying memory and displaying the ability to count to two. Leiden physicists describe the computing rubber in the journal PNAS. ‘Simple materials can process information, and we want to find the principles behind that.’

Many teachers in secondary education take differences between pupils into account . PhD research by Saskia Stollman (ICLON) shows that they need room to experiment and the support of the school management. Defence on May 23, 2018.

What are the benefits for us of collaboration with Chinese partners? What sparks off Leiden researchers' interest in collaborating with colleagues in China? Leiden University shows in three short films what joint projects are like.

Environmental scientists in Leiden have found that the so-called leaf economics spectrum for plants can not only be applied to terrestrial ecosystems, such as forests and grasslands, but also to wetlands. Furthermore, they showed that wetland plants generally have a fast-return strategy, meaning they…

Topology is an emerging field within many scientific disciplines, even leading to a Physics Nobel Prize in 2016. Leiden physicist Marcello Caio and his colleagues have now discovered the existence of topological currents in analogy to electric currents. Publication in Nature Physics on January 14th.

Thread-like bacteria make cells that no longer have a cell wall under the influence of osmotic stress. A remarkable discovery, since the cell wall serves as a protection barrier for bacteria. It could also help to explain how pathogenic bacteria can hide in our body from our immune system. A team of…

Previous research has shown that extreme shyness is hereditary, but because shyness is such a broad concept it is difficult to identify specific genes. Anita Harrewijn has discovered particular brain measurements that can help. PhD defence 18 January.

Lotte Fikkers, university lecturer in English literature, received the Faculty Teaching Prize at the opening of the faculty year. ‘She is clearly very passionate about her profession.’

Graphene has held a great promise for applications since it was first isolated in 2004. But we still don’t use it in our large-scale technology, because we have no way of producing graphene on an industrial scale. Leiden physicists have now visualized for the first time how atoms behave in between graphene…

Rong Yuang, PhD candidate from the Institute of Environmental Sciences investigated the impact of the renewable energy expansion on China’s carbon emission. On 17 May, she will defend her thesis. China is investing heavily in the development of low-carbon electricity sources, like nuclear, hydro-,…

Large-scale forest fires started by prehistoric hunter-gatherers are probably the reason why Europe is not more densely forested. This is the finding of an international team, including climate researcher Professor Jed Kaplan of the University of Lausanne and archaeologist Professor Jan Kolen of Leiden…

The vulnerability of the European electricity sector to changes in water resources is set to worsen by 2030 as a consequence of climate change. This conclusion is reached by researchers at Leiden University in an article published in Nature Energy this month.

It is true that girls perform better at school than boys, but this is not due to differences in brain development. This is the conclusion psychobiologist Lara Wierenga draws from a recent study. Publication in the Journal of Cognitive Neuroscience.

Leiden archaeologists have identified a number of bone fragments that were excavated in Germany two years ago. The fragments are from a sabre-toothed cat and appear to be parts of the skull of a prehistoric feline that is over 300,000 years old.

On 7 June, the National Museum of Antiquities opened a mini exhibition 'Scanning for Syria'. The exhibition shows how Leiden archaeologists and Delft technical specialists make reconstructions of 3000-year-old Assyrian clay tablets. The originals, stored in museum depots in Raqqa (Syria), have been…

Once it was considered the Switzerland of the Middle East, but today Lebanon is a country deeply affected by the economic crisis, political stalemate and an international context of growing tensions.

On December 3, Erik Kwakkel (University of British Columbia) will give a lecture in the University Library Leiden, titled “Writing on the Wall: Medieval Advertisement Sheets in Perspective.” Professional scribes in the Middle Ages produced advertisement sheets with which they presented themselves to…

In Dutch newspaper Trouw, Joost Kok describes the operation and accuracy of smartphones, smart bracelets and watches.

On the occasion of Bart Besamusca's retirement as professor of Middle Dutch text culture in international perspective at Utrecht University on 25 January 2023, the digital exhibition 'The surprising Middle Ages' was created by medievalists from the Utrecht University Centre for Medieval Studies Over…

Our Leiden Law Vlogger Daniëlle shows us what life is like at the KOG while keeping to all the coronavirus measures.