The channel through which two cell components exchange material appears to form at the edge of their contact surface, and not in the middle. This was discovered by the Leiden physical chemists Jelger Risselada and Edgar Blokhuis together with researchers from the University of Lausanne in Switzerland.…

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…

Nausea, neurologic pain and hair loss: some of the severe side effects of chemotherapy. Not necessary, biochemist Liyan Zhang showed. Together with Leiden biologists and others, she achieved great results with a drug that is only active in combination with light. Zhang will defend her PhD on 4 July.

The Faculty of Archaeology has a long research tradition in the municipality of Oss. Since 1974, researchers and students have been carrying out archaeological research here. In Januari 2019, an enormous replica of one of the top local finds was unveiled standing in the middle of a roundabout.

A common assumption in chemistry is that the coordination number of a catalyst's surface determines the reactivity of the reaction it catalyses. Strikingly, Leiden chemists have now proven that this is not true for nature’s most simple chemical reaction: the dissociation of hydrogen. The researchers…

Back in 2008, Jason Laffoon moved from Chicago to Leiden. He came to join the Faculty of Archaeology’s Caribbean research group as a PhD candidate. Now he is an assistant professor, bridging departments through his innovative research methods. ‘I focus both on the archaeology of the Americas, as well…

Eduard Fosch-Villaronga, Hadassah Drukarch and Bart Custers from eLaw - Center for Law and Digital Technologies, explore together with Pranav Khanna, eLaw alumnus, the influence of automation on human–robot interaction and responsibility in surgery innovation.

The topic of conversation at The Great Continental Breakfast the morning after the EU elections in the Netherlands was the election campaign, the – lacking? – constitutional basis of the EU and the Timmermans effect. ‘These were the most normal EU elections ever!’

More and more Dutch citizens are having to cope with debts at one time or other during their lives. Which is why the issue of debt counselling was selected as the central theme for the Leiden Leadership Lunch on Friday 27 September 2019.

Nassim was in the first cohort of students who began the bachelor’s programme in International Studies in 2012. His foreign classmates changed his outlook on the world. He now advises managers and civil servants on issues in higher education and internationalisation. His international perspective helps…

De minister van BZK heeft op 17 oktober het onderzoeksrapport ”Openbaarmaking van overheidsinformatie. Een rechtsvergelijkend onderzoek naar wetgeving in Zweden, het Verenigd Koninkrijk, Duitsland, Frankrijk, Slovenië en Estland” aangeboden aan de Tweede en Eerste Kamer. Het rapport is geschreven door…

The annual New Year Lecture for Honours College Law took place on Friday 17 January. This year’s speaker was Barbara Zwirs, author and former assistant professor in criminology at Leiden Law School. Her lecture got 2025 off to an inspiring start.

A new study from Leiden researchers shows that the carbon emissions of building materials are set to grow if we do not act rapidly. Even with known interventions implemented in concert, these emissions are much larger than the remaining 1.5 degree budget for building materials at today’s share, the…

Patients with the same illness often receive the same treatment, even if the cause of the illness is different for each person. This represents a new step towards ultimately being able to offer every patient more personalised treatment.

On 28 and 29 April 2022 the conference ''Book Diplomacy’ in the Cultural Cold War: Interdisciplinary Perspectives' takes place at Leiden University. The keynote speaker during the conference is Professor Greg Barnhisel (Duqusense University). The conference aims to bring together a diverse group of…

One discovered that arteriosclerosis resembles an autoimmune disease, while the other developed a system to aid in the search for new medications. For these achievements, Marie Depuydt and Jurren de Groot were awarded the Krijn Rietveld Memorial Innovation Award on the evening of Tuesday 4 June.

Joe Powderly was recently awarded a Leiden Global Interactions Advanced Seminar grant (GIAS) for a project that looks at heritage destruction, human rights and international law. The project approaches cultural heritage destruction from an interdisciplinary perspective and involves an exciting collaboration…

The Phase 3 clinical trial results of the promising Covid-19 vaccine of Johnson & Johnson are expected this month. The Dutch electron microscopy facility NeCEN helped develop the company’s vaccine, and they have now published their scientific findings in Nature Communications.

Archaeologist Prof Bleda Düring has been awarded a prestigious ERC Advanced Grant for his research on the emergence of social inequalities in the transition from the Copper Age to the Bronze Age in Cyprus. Using excavations, isotope analysis and cultural interpretations, he investigates how and why…

Many protoplanetary discs in which new planets are formed are much smaller than thought. Using the Atacama Large Millimeter/submillimeter Array (ALMA) scientists of the Leiden Observatory looked at 73 protoplanetary discs in the Lupus region.

Nanoplastics can accumulate in developing hearts, according to a study by biologist Meiru Wang from Leiden University. Her research on chicken embryos sheds new light on how these tiny plastic particles pose a threat to our health.

They might not have had Twitter, but they did have brochures (pamphlets), the Roman Catholics and ‘modern’ Protestants between 1840 and 1870. In these, they launched a passionate attack on each other’s ideas. Ineke Smit has catalogued the brochures from the collection of the University Library and outlined…

Over a thousand researchers and students protested in Leiden on 2 September against the plans to transfer money to science and technology at the expense of other disciplines. Just metres away, Minister of Education, Culture and Science, Ingrid van Engelshoven, was giving a speech at the opening of the…

Bringing together chemists and physicists to thoroughly investigate how electrochemical processes work on the smallest scale. That is the goal of the new Advanced Nano-electrochemistry Institute of the Netherlands, or ANION for short. The consortium receives a Gravitation funding of 23.6 million euros…

Professor Anne Meuwese is calling on governments to show more vulnerability when it comes to providing information about how they function.

Workshops, tours, talks, music, an AI photobooth, interviews, a special poem and the launch of the LUF Children’s Fund. Alumni celebrated their alma mater’s 450th birthday in style on Saturday at the massively oversubscribed Dies Natalis Festival.

The endogenous compound anandamide – often referred to as the body’s own marijuana – plays a role in erasing memories of a traumatic event. This was discovered by an international team led by Leiden chemist Mario van der Stelt. The results have been published in Nature Chemical Biology and may provide…

Registering your hypothesis and analysis plan online before starting your study – why should researchers bother? Henk van Steenbergen, a researcher in cognitive psychology, decided to give it a try. 'I used it as an exercise in open science.'

Not taking into account the saturation of drug targets can lead to wrong conclusions about the duration of a drug's action. This is what former PhD candidate Wilbert de Witte writes together with the Leiden professors of pharmacology Meindert Danhof, Piet van der Graaf, and Liesbeth de Lange in Nature…

An international team of laboratory astrophysicists and astrochemical modellers has shown that glycine, the simplest amino acid and an important building block of life, can form under the harsh conditions that govern chemistry in space. The results have been published this week in Nature Astronomy and…

An international team of astronomers, led by Will Rocha of Leiden Observatory, using the NASA/ESA/CSA James Webb Space Telescope have discovered that the key ingredients for making potentially habitable worlds are present in early-stage protostars, where planets have not yet formed.

Give organisms like plants and animals the freedom to move, interact and meet their own needs, and they will thrive on their own, says Professor Geert de Snoo. Our interference often ends up doing more harm than good.

Whereas the Netherlands Court of Audit used to conduct an investigation once a year, the average civil service organisation now has a few per year to contend with. Is so much going wrong nowadays? Not at all, says Professor by Special Appointment Sjoerd Keulen. ‘It’s one of the methods that makes democracy…

In the orientation seminar of the Leiden Leadership Programme lecturers and alumni shared their experiences and prospective students asked questions. They learned that they, too, can show leadership. ‘The LLP will give you the opportunity to reflect on who you are.’

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…

University lecturer of modern Dutch literature Rick Honings, associated with the Faculty of Humanities, has received a Vidi grant of 800,000 euros. This allows him to carry out research into a more nuanced image of our colonial past.

In 2005, the International Crime Court (ICC) in The Hague started an investigation on alleged crimes in Darfur, Sudan. However, Sudan is a non-party state to the Rome Statute, on the basis of which the ICC later was established. PhD candidate Yudan Tan studied the status of the Rome Statute and she’ll…

The opening of Islamic primary schools has made an important contribution to the emancipation and integration of Muslims in the Netherlands. This is the conclusion of PhD candidate Bahaeddin Budak in his research into 25 years (1988-2013) of Islamic primary schools in the Netherlands. PhD defence on…

This summer, Leiden, The Hague, Noordwijk and Delft will be hosting the ‘Sizzling Summer of Space’. To tie in with the international Space Studies Programme, all kinds of activities on space exploration are being organised, from a film evening to a Science Café and an exhibition of satellites to the…

From Soledad Acosta de Samper and Albalucía Angel to Hazel Robinson Abrahams and Amalialú Posso Figueroa. During the Symposium & Workshop Experience and Voice: Library of Colombian Women Writers, we focus on books written by Colombian women writers from different historical periods. The symposium and…

It’s better to cut our nitrogen emissions now than to solve the consequences later at great expense. That’s the lesson we can learn from the Dutch nitrogen crisis, according to nitrogen expert Jan Willem Erisman. In Science, he shares this lesson with other countries. According to Erisman, we should…

Online services are stored on servers in data centres. Remko Fermin researched methods to make the memory in data centres more energy efficient.

One unravels the origin of the largest black holes in the universe, the other investigates the influence of stellar wind on the atmosphere of exoplanets. Both Elena Maria Rossi and Aline Vidotto receive a Vici grant for their research into the mysteries of the universe. ‘I have no idea yet how we can…

For the first time, an international group of astronomers have seen the heat glow of two ice giant planets colliding. They could also observe the resultant dust cloud move in front of the parent star several years later. Led by Leiden astronomer Matthew Kenworthy, they monitored the star's brightness…

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…

You have prepared a research project, put together a plan, and you are ready to travel to the country where you will be conducting your fieldwork. What do you do when Covid suddenly makes that impossible? Nadia Sonneveld was forced to relocate her project Living on the Other Side to a hybrid form: ‘It…

An atomic vandal has finally been caught! Scientists from Leiden University and the Department of Energy’s SLAC National Laboratory have uncovered the mysterious cause behind the rapid corrosion of platinum electrodes. This breakthrough paves the way for more affordable green hydrogen production and…

A series of upcoming activities by PhDArts co-director Janneke Wesseling, docARTES researchers Bobby Mitchell, Giuliano Bracci, and Dick de Graaf, and PhDArts researchers Brigitte Kovacs, Danne Ojeda, Jack Segbars, Mikala Hyldig Dal, Ato Malinda, and Thalia Hoffman

On 5 October, mediator Johan Remkes presented his report on the nitrogen crisis and what he thinks is the best way forward. Leiden University professor and nitrogen expert Jan Willem Erisman responds to Remkes’s recommendations. ‘It’s a step in the right direction.’

Leiden and Austrian researchers have succeeded in further uncovering how a plant cell passes on the growth hormone auxin in a directional manner to the next cell. Three proteins that cling together in a bunch appear to be essential for this important transport process. ‘This discovery solves a crucial…