We take our worn, torn and unwanted clothes to the clothing bank, assuming they will get a second chance. But what exactly happens with all those textiles?

No criticism is allowed in Turkey of the mass murder of Armenians that took place a century ago. PhD candidate Alaettin Carikci examined how contemporary artists, authors, film directors and museums have nonetheless found indirect ways of expressing their criticism.

As a prelude to the Night of Discoveries, an Afternoon of Discoveries will be held in Leiden on 21 September for children from the age of eight. Researchers will tell exciting tales and the children will get to do experiments.

If you do research on Leidens Ontzet in Leiden, you can count on a lot of interest. But Leiden Kennisstad interns Marieke Nolten and Alexander Nuijten had not expected there would be quite so much interest. They concluded a year of research with the presentation of a scientific paper.

What happens in our bodies when we care for children? And why are some people more caring than others?

Arjen Doelman (Leiden University), Max Rietkerk (Utrecht University), Ehud Meron (Ben-Gurion University of the Negev) and Isla Myers-Smith (University of Edinburgh) received an ERC Synergy grant of 10 million euros with their RESILIENCE project. The researchers will investigate whether and how tipping…

A consortium of research infrastructures focused on water quality has received €4.18 million in funding from the Dutch Research Council (NWO). This grant will support the transformation of outdoor laboratories at Leiden University, NIOO-KNAW, Radboud University, and Wageningen University & Research…

Sander van Kasteren only noticed some small, subtle changes since he was appointed professor on 1 May. Still, he has to get used to the idea, even though he had been working towards the professorship for a few years. ‘I don't quite see myself as a professor yet.'

For many years, he was active in various management positions at the LION and even after his retirement he is still very involved. Professor Jan Aarts leads the Leiden hub of the Quantum Delta NL growth fund and is now temporarily responsible for national educational activities. In this way, he is helping…

Confronting your own biases, students of the course ‘Adults and Children in a Polarising World’ are not afraid to do exactly that. ‘The fact that my expectations of the interview were not in line with the outcome, was very informative.’

Which molecules go into forming planets? PhD candidate Christian Eistrup and his colleagues have created new models to research this question. Their findings could change our idea of which molecules were forming Jupiter or even Earth.

Translating texts, rehearsing scenes or practising music. Over the last few weeks, students of the BA Classics programme have been focused on just one thing: their production of the Greek tragedy Hecuba. Almost a third of them are involved in it. Iris de Smalen, who plays Hecuba, and Christoph Pieper,…

Could we stop cancer cells by cutting off their energy supply? That’s what Dione Blok, a bachelor’s student in Bio-Pharmaceutical Sciences, aimed to find out during her thesis research. She investigated a compound that affects the tumour cells’ energy metabolism. ‘Hopefully, these insights will provide…

Metamaterials have properties that depend on their shape and architecture. Researchers at AMOLF, Leiden University and Tel Aviv University have found a new way of designing these metamaterials and their properties by deliberately incorporating small errors. They publish their results today in Nature…

The new book, ‘Njord in de Oorlog’ (Njord during the War), describes how the Leiden student rowing club was affected by the Second World War in a detailed series of personal stories. On Monday 16 November, Njord president Rosalie ten Wolde presented the first copy to Rector Magnificus Carel Stolker.

In the Netherlands, 1.55 million people suffer from cardiovascular diseases. Yet, acute cardiovascular events, such as a heart attack or stroke, often occur unexpectedly. That is because many people do not know they are at risk for such an event. Immunological researcher Amanda Foks and her colleagues…

It’s all hands on deck at the moment to resolve the COVID-19 crisis. Researchers from various disciplines are helping where they can, also from the field of artificial intelligence (AI). AI offers great opportunities both at the frontline of the crisis and in its expected aftermath. Leiden professor…

The Lucia de Berk case or the suicide of Slobodan Praljak at the International Criminal Tribunal for the former Yugoslavia: certain trials keep popping up in media. In her dissertation, Tessa de Zeeuw examines the cultural appeal of such cases and analyses artistic responses. ‘Artworks sometimes have…

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.

The student navigator 'Find your way' helps students find their way around the university. Student advisers can also be found on the roadmap. JanPieter, student advisor at the Institute of Security and Global Affairs (ISGA), explains what a student advisor does.

Starting four years ago, the same privacy laws apply throughout the European Union: the General Data Protection Regulation (GDPR). The law also affects our work at the university. As a refresher, we spoke with Privacy Officer Max van Arnhem about privacy in the workplace and what to do if something…

Now the election results are in, how should we interpret them? Time to call Associate Professor in Political Science Tom Louwerse.

PhD candidate Daniël Gomon has developed statistical methods that could significantly improve research in fields like medicine and demography. ‘Mathematicians don’t like unrealistic assumptions,’ he says. Gomon will defend his PhD thesis on 19 June.

Mark Klaassen, Assistant Professor of Immigration Law and member of the Dutch Advisory Council on Migration, explains on Dutch radio programme ‘Met het Oog op Morgen’ why it’s a bad idea to use Denmark as a model country for Dutch asylum policy.

How many children are born with the help of a surrogate mother in the Netherlands, and which legal obstacles can arise? Through a new interdisciplinary study, researchers at Leiden University are attempting to provide clarity about surrogacy processes.

Hoping to learn something about the human brain, Leiden researchers are creating a setup to shoot single photons, particles of light, into someone’s eye. ‘The eye is a passageway to the brain.’

Research is at the heart of a solid security policy. That’s why researchers from Leiden are analysing the motives of radicalised people and the biggest risks surrounding digital activity. Read more about their work in the research dossier ‘Security and Threat’.

Acute stress seems to have a surprisingly positive effect on our health. Researcher Erin Faught received an NWO veni grant to find out why that is and how we can use that knowledge to our advantage. For her lab research, she uses a remarkable small animal to learn more about our own stress levels.

On 22 November, Leiden scientist Jan Vonk received an ERC starting grant for his research on the building blocks of mathematics. This grant is not his first this year: in fact, this July Vonk also received a Vidi from NWO. Four questions to the scientist who got two grants this year.

How do you count the nanoplastics in your body? Leiden researchers published a method in Nature Protocols today that should make this easier. Important for both environmental and medicine research.

Rafaëlle Kwakkel is currently studying Literary Studies: Literature in Society. In addition to her studies, she works at Studium Generale and enjoys being creative.

Tiny selenium particles could have a therapeutic effect on ischemic brain strokes by promoting the recovery of brain damage. Pharmacologists, including Alireza Mashaghi from the Leiden Academic Centre for Drug Research discovered that selenium nanoparticles inhibit molecular mechanisms that are responsible…

Asexual procreation in female wasps leads to an accumulation of genetic mutations, and the shrivelling of their sex organ. Leiden biologist Ken Kraaijeveld published this discovery in Evolution. His research is one of the first experimental studies into the consequences of asexual procreation.

Smallholder farms in tropical regions can double their crop production by 2030 compared to 2015, a study finds to which José Mogollón (Institute of Environmental Sciences) contributed. But to achieve this, the farmers must increase the input of phosphorus beyond what is currently foreseen. The study…

She works four days a week as a project manager at LIACS and trains six days a week with the Dutch Para Climbing team. Christiane Luttikhuizen balances her role at the Faculty of Science with competing at a high level in climbing.

If you know a crime is about to occur, should you be able to prevent it before it has even happened? This was one of the questions that was posed in light of predictive policing as a form of mass surveillance during the debate in the elective Governance of Crime and Social Disorder class of the Crisis…

Her part-time job as a city guide in Dordrecht opened Lotte Hamm's eyes: not business administration, but history was her dream study. This semester she starts her bachelor's degree.

A Dutch collaboration, including the SURF Open Innovation Lab and Leiden Observatory, has won Hyperion Research's HPC Innovation Excellence Award. This is the first time that a Dutch team has won the award. The team received the award for improving large-scale numerical simulations with deep learnin…

On 10 May 1940, the Netherlands was taken completely by surprise by the attack of the German army. Wasn’t it? In his dissertation, Wouter Linmans debunks the idea that the Second World War took the Netherlands by surprise. ‘From 1935 onwards, all major political parties wanted to invest in the military.’…

Though tuberculosis can be cured today, new resistant strains of the bacteria are becoming a growing problem in the medical world. Biologist Annemarie Meijer and her colleagues are studying resistance to this disease. Their research is already yielding several interesting clues that could help the development…

The use of fire can tell us a lot about human evolution. Archaeologist Femke Reidsma has developed a more accurate technique to identify how our ancestors used fire. Existing archaeological studies will need to be revised. Reidsma’s study was published in Nature Scientific Reports on 2 November.

Mechanical metamaterials have been found to display surprising features, on top of their unusual properties such as shape morphing and programmability. When the materials are a step in size larger, new rules seem to apply. This was discovered by researchers at AMOLF and the universities of Leiden and…

Arnold Tukker and Mingming Hu (CML) will look for urban resilience solutions in the Dutch-Chinese ReSURE2 project that received 1.1M euro.

On 16 June, Leiden University opens the MIGRADROME: a unique, seven-metre-long artificial river. Researchers will use it to study how light and sound affect migratory fish. ‘We’re recreating a real river, but under fully controlled conditions.’

Translating poetry is notoriously difficult. Translating poetry in such a way that the humorous nature of a poem remains intact is even more difficult, even though it is precisely jokes that can encourage children to read more, notes PhD candidate Alice Morta.

The surface of platinum electrodes changes much more during use than was previously thought. In a collaboration between the Leiden Institutes of Chemistry and Physics, chemists Leon Jacobse, Yi-Fan Huang and Marc Koper, and physicist Marcel Rost have been able to show this for the first time. Publication…

Rodrigo Ochigame’s project explores how AI redefines scientific evidence, aiming to help scientists critically navigate these transformations with the Veni grant.

Too expensive groceries, diseases suddenly breaking out: from the sixteenth to the nineteenth century, hundreds of people documented the world around them in chronicles. A significant number of these texts have been digitised in recent years. Professor of Early Modern Dutch History and project leader…

Hardly ever before have different groups in the population retreated into their own bubble as much as they are doing today. Professor of Sociology and Law Maartje van der Woude and her students will be examining the effect of social distancing on relationships. How do the people of Leiden look at students…

The war in Ukraine is entering a new phase with the announcement of a partial Russian military mobilisation and the intention to annex four Ukrainian regions. Why is Putin making these decisions just now and what consequences will they have for the course of the war? We talk to professor and Russia…