Dumb island birds, invasive species dressed as cute purple flowers, and trees the size of skyscrapers. What better way to end your summer and start the new academic year than by discussing, scavenging, and observing these topics. This is exactly what the PhD candidates of Young Liveable Planet (YLP)…

Bacteriophages, viruses that infect bacteria, may be used as an alternative treatment option when antibiotics fail. Leiden researchers have studied the structure and function of a novel bacteriophage that could be used to treat one of the WHO bacterial strains of concern where new treatments are urgently…

Throughout the year, master's student Berber Kommerij is busy analysing medieval and early modern books and paintings. Every summer, however, she leaves for the Norwegian fjords to conduct sea kayaking tours. 'Watersports are my great love.'

Depression has traditionally been linked to increased inflammation. Innovative research by psychologist Eiko Fried refutes this popular assumption. He shows that specific depression symptoms such as sleeping problems explain this relationship. Publication in Psychological Medicine .

‘Three books published within a year – that happens only once in a lifetime!’ This was the reaction of Katarzyna Cwiertka, Professor of Modern Japan Studies at Leiden University, on the publication of Cuisine, Colonialism and Cold War, one of her three new books. The book sketches the colonisation of…

An indian stepwell on a nanoscale. That is what postdoc Nakkiran Arulmozhi calls the pattern he saw when he corroded a special kind of platinum crystal. The unique images show the destructiveness of the process, but also show how predictable it is.

Leiden University and the Beijing Institute of Technology will be collaborating in the area of computer science teaching and research. One of the first outcomes of this collaboration will be a joint four-year bachelor's programme. Willem te Beest, Vice-President of the Executive Board, and Professor…

American PhD candidate Linda Gottschalk wrote this proposition in her dissertation on Caspar Coolhaes, Leiden’s first Professor of Religious Studies. What's behind it?

For the students of our Dutch institutions, the Netherlands Embassy supported an ‘academic retreat’ at hotel Stella de Mare in Ayn Sukhna. During this two-day retreat, our students discussed with students of al-Azhar University in Cairo on various topics. It was an open exchange of ideas and feedback…

‘It has never been so easy to set up a Studium Generale series.’ With these words Tilman Grünewald thanked speaker Frank den Hollander, who kicked off the Studium Generale series on complex networks on Monday 20 February.

Lack of manliness, avaricious or too imaginative. These are just a few of the accusations with which British scientists discredited each other over a hundred years ago. PhD candidate Léjon Saarloos researched British scientists around the year 1900 and their idea of what makes a good - and therefore…

A team of scientists, including Leiden Astronomer Alice Booth, has discovered silicon monosulfide molecules in the dust disk around a young star. Such molecules indicate planet formation. The team made the discovery using the ALMA telescopes. This method provides an alternative when direct observation…

Higher temperatures are resulting in changes to vegetation and soil in mountain areas throughout the world. An international research team including Leiden ecologist Ellen Cieraad published an article on 25 January in Nature on the disruption to the ecosystem.

Money worries can vary from person to person and be about different things: for instance, energy bills, healthcare costs or household spending. The new National Money Worries Monitor wants to gain more insight into the money worries and financial vulnerability of the Dutch population.

Fascinating images, articles of clothing and other unique objects from the past four centuries of the history of Leiden University can now be seen in the ‘Celebrating Curiosity’ exhibition in the hall of Rapenburg 70.

The political parties in the running to form a Dutch cabinet are looking into solutions to curb the influx of refugees. The plan is to designate refugee accommodation as a crisis. But is it as simple as that? Mark Klaassen, Assistant Professor in European law, discusses this on Dutch current affairs…

Corinne Dettmeijer-Vermeulen, the well-known legal expert and Leiden University alumna, was for many years the National Rapporteur on Trafficking in Human Beings and Sexual Violence against Children. On 26 November she will deliver the Cleveringa lecture.

The Klokhuis dedicates a special episode to Leiden alumnus and famous scientist Christiaan Huygens. Part of the episode was recorded at the Leiden Observatory. Leiden researchers also helped shape the episode, which debuts on Tuesday 2 November.

Starting 1 October 2022, Mirjam Sombroek-van Doorn has been appointed as Professor Law and Health.

Aqueous solutions of proteins and carbohydrates separate into two parts with an extremely ‘soft’ boundary surface. The surface tension between these two parts can be manipulated, for example by adjusting the pH balance. This can be used to develop emulsions of a water-based solution in another aqueous…

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…

Dr. Miguel John Versluys was awarded the Zenobia Essay Prize during the recent conference Troy: the city, the war, the legend organized by the Zenobia Foundation in the Lutheran church in Amsterdam.

On 20 June 2024, the Europa Institute held its annual PhD Day at the Gravensteen Building. This event brought together PhD candidates in European law to present their research projects, share input from preliminary findings and engage in discussions with their peers and supervisors. The day was filled…

Statement from the Editorial Board of the Common Market Law Review regarding the UK Brexit referendum campaign:

The Leiden Hortus Botanicus is the oldest botanical garden in the Netherlands. Although perfect for a ramble, it is much more than an open air museum. PhD students carry out their research here and the Hortus makes a serious contribution to biodiversity through the exchange of rare seeds with other…

The Special Issue, edited by Jorrit Rijpma, Melanie Fink, Kristof Gombeer, and Anna Petrig, contains a selection of contributions from the Conference organised by the Europa Institute on the topic of the EU and Maritime Security in October 2018.

More allowance should be made for differences between municipalities, argues Geerten Boogaard, Thorbecke Professor of Local Government. The Municipalities Act could, for instance, offer a ‘menu of options’ for the decision on whether to have an elected mayor. Professor Boogaard will deliver his inaugural…

Hybrid Workshop: In person and online on 26 – 27 January 2023.

An international team of astronomers has discovered a large reservoir of hot gas in the cluster-in-formation around the Spiderweb Galaxy. Based partly on that hot gas, the astronomers predict that the cluster-in-formation will grow into one of the largest objects in the universe. A step closer to discovering…

Which two scientists will present their research best in three minutes? It could be the one with the most supporters.

Academic research on terrorism is getting better all the time. This is the conclusion of university lecturer Bart Schuurman after studying 3,442 articles. He published his study in Terrorism and Political Violence.

Last month (February 5-8 2024), the University of the West Indies, Cave Hill Campus, Barbados, hosted a workshop entitled ‘Caribbean World Heritage Sites in the light of today’s global challenges: the case of Historic Bridgetown and Its Garrison’.

Historical figures such as Columbus have returned to the centre of public debate. Much remains to be discovered about his legacy and current impact on our society. A new study shows the ecological footprint that the arrival of Europeans left in the Caribbean islands.

‘Seated behind her desk, she initiated and influenced embassies, conventions, ambassadorial meetings, sieges, and skirmishes that had kept a war-torn early modern Europe in its grip.’ This is how Nadine Akkerman, researcher as the Leiden Institute for Cultural Disciplines and author of The Correspondence…

On 11 October 2019, the 5th CML Rev. on Tour conference took place in Paris, at the beautiful Salle des Conseils in Paris 2 Panthéon-Assas University.

Micah DenBraber studied at Leiden University College in The Hague while pursuing an internship at the World Resources Institute (WRI), a self-proclaimed ‘think-and-do-tank’, where he built partnerships with the philanthropic sector, among other things.

Criminals? They are always men. At least, that’s what we tend to think. Historian Manon van der Heijden wants to show, however, that between 1600 and 1900 in Europe, women were responsible for a substantial share of the criminal activity. She has been granted a VICI award for her research.

Fungi germinating in the lungs of patients. Doesn’t sound too nice, does it? Luckily, humans can deal with this normally, and we are able to clear the infection before anything comes to harm. However, in people with health issues, Aspergillosis can cause a lot of damage, especially if the fungus becomes…

The latest issue of NTT Journal for Theology and the Study of Religion debates dr. Markus Altena Davidsen’s vision for the future of religious studies in the Netherlands. Comparison, theory formation, and valorization are among the elements that Davidsen urges scholars of religion to prioritize in order…

On Wednesday 31 January, at 15.00 hrs, Vestert Borger will defend his dissertation entitled ‘The Transformation of the Euro: Law, Contract, Solidarity’ in the Great Auditorium of Leiden University. The dissertation has been written under the supervision of Professor Stefaan Van den Bogaert (supervisor)…

A team of astronomers led by Dutch scientists have directly imaged a giant planet orbiting at a large distance around a sun-like star. Why this planet is so massive, and how it got to be there, is still a mystery. The researchers will publish their findings in the journal Astronomy & Astrophysics.

Astronomers at Leiden University have detected rare isotopes of carbon and oxygen in our neighbouring stars for the first time, providing a new window to better understand the chemical evolution of the cosmos.The results are published today in the journal Nature Astronomy.

Last week, aviation professionals and leaders from around the world gathered in Chicago to celebrate the 80th anniversary of the Chicago Convention, the landmark treaty that laid the foundation for modern international civil aviation and established the International Civil Aviation Organization (ICAO).…

PhD candidate Dennis Wander searches for the best of both worlds. That is to say: a cancer drug that is effective and also has minimal side effects. To this end, he makes new molecules inspired by two existing medicines. And not without result: ‘We have created a new variant that is very promising.’…

Dr Alex Geurds was elected as a Fellow for the Society of Antiquaries, a prestigious and old educational charity based in London. Established in 1707, the society aims at the encouragement and advancement of the study and knowledge of the antiquities.

Livestock was already transported over long distances in the Bronze Age Netherlands. That is what researchers from Leiden University and VU Amsterdam have discovered. Publication in the Journal of Archaeological Science: Reports.

Professor of Korean Studies Remco Breuker has been awarded a subsidy from the European Research Council to study the dispute between both Koreas and China on the history of Manchuria. Political scientist Daniela Stockmann will be examining the role of social media and how the Chinese authorities handle…

On 21 June, our beloved colleague Joan van der Waals passed away after a long and rewarding life.

Recently, our respected and talented former colleague Bente Hilde Bakker passed away after a long and brave fight with illness. She received her mathematical training at the Vrije Universiteit in Amsterdam and also obtained her PhD there under the supervision of Jan Bouwe van den Berg and Robert van…

Nanoparticles that transport medicines to a specific part of the human body are usually broken down in the liver prematurely. Jeroen Bussmann from Leiden University has discovered a new method to prevent this from happening. Publication in ACS Nano.