Bacteria temporarily live without their cell wall if dangerous viruses are near. A remarkable feature, as the cell wall is a sturdy barrier against threats. Still, the discovery has a logical explanation ánd might be of a consequence for fighting pathogenic bacteria, according to Véronique Ongenae,…

Translating ancient texts, filling in missing parts of clay tablets: articles are popping up more and more often about the possibilities offered by artificial intelligence for researching documents in the oldest scripts. Are we better off leaving the deciphering of ancient texts to computers from now…

If you had something important to write down in ancient times, you would usually write in Greek in the eastern Mediterranean. University lecturer Joanne Stolk has been awarded an ERC grant to explore the kinds of spelling mistakes that were made in these scripts. And, more importantly, what improvements…

Using a clever experiment, PhD candidate Shengxiang Yang discovered how gold electrodes convert water into oxygen. He is the first to unravel the mechanism of this reaction. Yang published his results in the journal ACS Catalysis.

Future users of the Aleida Nijland building were recently the first to have the opportunity to admire the design plan for the new building. During a user meeting, architectural firm De Zwarte Hond presented the design, and future users of the building were able to share their wishes and ideas for further…

Max van Lent, Aris Politopoulos, Emily Strange, Claire Vergerio and Astrid Van Weyenberg have joined the Leiden University Teachers’ Academy. Lecturers at the Academy exchange experiences, develop their skills and share their knowledge and expertise with the rest of the university, for example via the…

As eLaw Postdoc researcher exploring the multiple intersections between law, gender, and technology, Carlotta Rigotti has recently participated in a groundbreaking international workshop focused on combatting image-based sexual abuse (IBSA) at the CAIS premises in Bochum, Germany.

In 2019, Federico Cappadona was one of the first students to enroll in the new master’s specialisation Applied Archaeology. He recently graduated and he is happy to share his experience.

Seven International Studies students are at the helm of Reach & Teach, a student platform that uses language lessons and social activities to promote the integration of holders of residence permits and asylum seekers in The Hague. Elsa Varela Put chairs the project and explains how it came into bein…

The city centre of Leiden is covered in them: wall poems. When roaming around, you come across poetry written in the Latin alphabet, but also in scripts that might be more difficult to understand for the average person living in Leiden. In a new series of videos, Tijmen Pronk talks more about this.

Birds around airports are more aggressive and sing as if they have hearing loss. Collaboration between researchers of Manchester Metropolitan University and the Institute of Biology Leiden has led to surprising new findings about the impact of anthropogenic noise on birds around airports. Publication…

Where does Dutch come from? Newly appointed Professor Alwin Kloekhorst looks for an answer to that question in millennia-old languages from Anatolia, the Asian part of present-day Turkey. 'A new interpretation in one of the Anatolian languages can have consequences for dozens of other languages.'

The European Research Council had awarded a Starting Independent Researcher Grant to Bleda Düring for the project Consolidating Empire.Reconstructing Hegemonic Practices of the Middle Assyrian Empire at the Late Bronze Age Fortified Estate of Tell Sabi Abyad, Syria, ca. 1230 – 1180 BC.

An international team of scientists including Leiden's Joe Callingham has discovered nineteen red dwarf stars that unexpectedly emit radio waves. The outbursts possibly originate from interaction with exoplanets. The results of the research appear in two scientific publications.

Fish populations in lakes and rivers have declined in recent decades. This is probably due to light and noise pollution. The Horizon Europe grant enables ecologist Hans Slabbekoorn to investigate this and improve the situation for migrating fish. In order to do so, a seven-metre-long swimming tunnel…

Looking for a different approach in the ongoing discussions on the ethereal matter of Romanisation, Ana Zora Maspoli joined Miguel John Versluys’ research group as a postdoc guest researcher. While she has been active in our Faculty since February 2022, you may not have met her yet due to the Covid-19…

Leiden University has six top bachelor's programmes according to Keuzigids universiteiten 2025, a consumer guide to university programmes. This puts Leiden in fourth place of the broad-based universities.

Explaining your PhD research to others can be quite difficult, especially without talking! PhD student Annebelle Kok of the Institute of Biology Leiden was one of the finalists of the 'Dance Your PhD' competition of scientific journal Science. ‘You have to understand your own research well if you are…

As climate change and ecological degradation’s effects on our mental health becomes more severe, we must all do our best to protect not just the environment, but also our mental well-being. Therefore, on this Sustainability Day, we have collaborated with Healthy University Leiden to focus on the relationship…

More and more people worldwide have infections caused by bacteria that are resistant to many types of antibiotic. Why is this and how big of a problem is it?

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…

Athletes always strive for the top. How can data scientists assist them in improving their performance? During the seminar Data Science and Sports, the possibilities and challenges of collaboration between these two worlds were discussed.

PhD student Robbin Bastiaansen applies mathematics to get insight in practical problems. By comparing mathematical models with developments in existing ecosystems, he hopes to demystify the process of desertification. His research has been published in Proceedings of the National Academy of Sciences…

If you look closely, you may recognise the metal beams from the skeleton of the Circular Pavilion near Leiden Central Station: they come from the demolished Gorlaeus Highrise. The same beams have also been used for the circular construction of BioPartner 5 at the Leiden Bio Science Park, which will…

Whales in the vicinity of the city of Auckland, New Zealand consume large amounts of microplastics every day. A team of international researchers reached this conclusion after carefully examining whale poop. The team included Thijs Bosker, Associate Professor in Environmental Sciences at Leiden University…

With support of several publishers and private foundations, Leiden University Libraries (UBL) and the Scaliger Institute welcome around 15 to 20 Fellows and guests per year to consult and research materials from our Special Collections. The Scaliger Institute received applications this year from domestic…

Cars, wind turbines, solar panels and smartphones. ‘Critical’ raw materials like platinum or cobalt are used in all the technologies that are essential for the energy and digital transition. But we should be aware of the scarceness of these materials, a new campaign warns.

Neanderthals at Pech-de-l'Azé I in South Western France had a striking use for manganese dioxide 50,000 years ago.

The Vrouw Vennepolder near Oud Ade has been transformed into the Polderlab. Scientists and students from Leiden University, together with farmers and citizens, investigate how to manage peatland in a sustainable and profitable manner. A great opportunity for students to experience how scientific knowledge…

A diverse team of Leiden archaeologists applied for, and was awarded, the KNAW ‘Appreciated!’ grant, meant to further their science communication endeavours. We speak with Dr Maikel Kuijpers, who is the main contact person of the application.

Is it possible to measure subtle oscillations caused by dark matter moving through the earth? A Dutch-American physicist team have discovered a new route toward what could be the first-ever measurement of ultralight dark matter. They suspended a microscopic magnet inside a superconducting enclosure,…

Detecting molecules with temperature instead of chemical reactions: that’s what scientists from the Leiden Institute of Physics want to do. They are developing a sensor that utilizes special nanoparticles to keep track of certain molecules. In this way, they can for example see how well new drugs do…

Recognition for an unprecedented career of more than forty years: Professor of Applied Statistics Jacqueline Meulman of the Mathematical Institute receives the Career Award of the Psychometric Society. ‘A fantastic surprise.’

As Director-General of the ESO for the past ten years, Leiden University astronomer Tim de Zeeuw had ‘the best astronomy job in the world’. Back at the Leiden Observatory, he is focusing on the first 3D map of the Milky Way.

Over the years, many spectacular archaeological finds have been washed ashore on the Dutch coast. Among these a large assemblage of barbed points made of bone and antler from the Mesolithic (11,000-8000 BC). The species used by Mesolithic hunter-gatherers to manufacture their barbed points remained…

Explore the One Among Zeroes |0100| project and its role in shaping the future of the digital economy, human-environment dynamics, and urban heritage in Indonesia's cities.

Why is the sky blue? Why are most people right-handed? Why are spiderwebs so strong? These are just some of the questions arriving at Postbus 71, a Leiden2022 project where everyone can ask their questions. Friso de Hartog, the driving force behind Postbus 71, is busy answering as many questions as…

Carolien Rieffe is appointed an Honorary Professor at the prestigious UCL Institute of Education, University of London. Rieffe already holds a professorship, Social and Emotional Development, at Developmental Psychology, Leiden University. This new appointment strengthens the existing bond between Leiden…

At the opening of the LDE-BRIN Academy on 31 October, the Bosscha Medal was awarded to Professor Taniawati Supali from the Department of Parasitology at the University of Indonesia. She receives the medal for her outstanding contribution to science and her working style, which is characterised by collaboration,…

For 2022, The Iranian-German project 'The Iranian Highlands: Resilience and Integration of Premodern Societies' announces the second round of fellowship grants. The fellowship is open for both iranian and non-iranian researchers, especially in archaeology but also in other interdisciplinary fields focussing…

Modern humans and Neanderthals may have co-existed in France and Northern Spain for up to 2,900 years until the Neanderthals disappeared. This is what archaeologists from Leiden University and Cambridge University write in a new publication in Scientific Reports.

Botanisch filosoof Norbert Peeters vertelt over hoe mensen omgaan met planten in het algemeen, en met onkruid in het bijzonder.

Arnold van der Valk on Food Council MRA.

Is polder rice a feasible circular alternative for cows on peatland? A pilot experiment started this week. On May 22nd, researchers from Leiden University and Wageningen University & Research (WUR) planted roughly 3,000 rice plants on the Polderlab near Leiden. The researchers want to test rice as a…

War and terrorism overshadow interest in the pre-Islamic heritage of the Arabic peninsula. The new Leiden Centre for the Study of Ancient Arabia aims to make the general public more aware of the ancient history of this region.

Martijn Manson became programme director for the Master’s in Pharmacy this month. He is a pharmacist as well as a lecturer and researcher at the LACDR (Leiden Academic Centre for Drug Research). ‘LUMC and LACDR share the responsibility for training the pharmacists of the future.’

We already know a lot about genetics and the risk of breast cancer. But much still needs to be done in breast cancer genetics to improve the prognosis and make sure women at high risk aren’t missed. This is what Professor by Special Appointment Marjanka Schmidt will say in her inaugural lecture on 4…

For the first time, astronomers have observed in three dimensions that gas from spiral galaxies is blown upwards and downwards at high speed, far out of the galaxy. They thereby confirm the theory of galaxy evolution: that star-forming galaxies create intergalactic gas flows by discharging gas along…

Some thirty Leiden students balanced on SUP boards for the Supping for Sustainability Lustrum activity. Together with alumnus Merijn Tinga, better known as the Plastic Soup Surfer, they paddled their boards through the Leiden canals and waterways, fishing plastic waste out of the water.

Researchers from Leiden University are working with Ouwehands Zoo to improve our understanding of emotions and intelligence in orangutans. Visitors to the zoo can now watch orangutans as they play with computer touch screens.