A beautiful speech by vice-dean Bart de Smit, a mini-lecture on exoplanets and the presentation of three faculty awards. That's how we started the new year at the faculty. Together with colleagues and students, we raised our glasses to a new year full of great collaborations, science and education.

The 10th edition of the World Congress of African Linguists (WOCAL), hosted by Leiden University, will be held online from 7 – 12 June. Leiden University Centre for Linguistics (LUCL) researchers give us an insight into how important and special this event actually is.

Sky-high energy prices and a climate that keeps getting warmer: it’s clear that we have to turn down the heat. Sustainability Day on 10 October will mark the start of our five-month Energy Campaign and we’ll be making the switch. Sustainability Coordinators Aranka Virágh (Real Estate) and Marlies Nijemeisland…

Before patients can take a pill, scientists often spend years in the lab developing and testing a candidate drug. That often includes experiments with laboratory animals. As head of the rodent facility, Ilze Bot and her colleagues ensure that these experiments are conducted in an ethically responsible…

How safe are the nanoparticles in transparent sunscreen, anti-odour socks and bacteria-resistant plasters? Although microbes are present on all organisms, the tools that estimate the safety of nanomaterials still hardly take them into account. Bregje Brinkmann explored the role of these microbes during…

PhD candidate Sebastiaan van de Lubben has written live blogs about Leiden politics. But how do you go about covering an event while it unfolds? ‘You don’t have time to think while you’re at it.’ Much proved to be unknown about this relatively new journalistic genre.

In our collective journey to bridge social, economic, and cultural inequality in society, we must al play a part, says Wilco van Dijk. Unfortunately, notes Carolien Rieffe, minority groups are often not included in this 'we.' This became a focal point of discussion during the fifth Psychology Connected…

From global warming to the decolonisation of knowledge. At the EuroScience Open Forum (ESOF) in Leiden over 500 speakers from 60 countries have come together to discuss the big themes of our times. Why have the delegates come?

The Leiden University College (LUC) education team behind The Learning Mindset (TLM) has received 800,000 euro’s during the Dutch Higher Education Award Ceremony 2022. The LUC team was second behind Universteit Twente. The prize was awarded during the annual Comenius Festival of the Comenius Network.…

In zoos, at festivals and in a mobile lab at the market: everywhere, Mariska Kret tries to understand human and animal emotions with her distinctive behavioural research. Now she has received the Mercator Sapiens Stimulus of €1 million for her efforts.

What started as an idea during a social gathering led to an unexpected breakthrough in research on resistant bacteria. Biologists and chemists from Leiden developed a new substance that proves to be effective against bacteria resistant to antibiotics. They published their discovery in Nature Chemist…

From a meaningless block of plastic to an advanced component that contributes to the energy transition. The technicians and scientists of our faculty think it out in detail and make it a reality. This special project shows that they need each other.

Nathaniel Martin, Professor of Biological chemistry, wondered what would happen if you take an antibiotic that has been known for 70 years and try to improve it with the latest tools of modern chemistry. Turns out it can become up to a hundred times more potent and prevent the growth of some drug-resistant…

Autism, Alzheimer’s, and bipolar disorder: can the development of these mental health conditions be influenced by the ketogenic diet? Increasingly, research suggests it might. 'For those it helps, it can be life-changing,' says neuroscientist Eline Dekeyster.

Using an innovative method, psychologist Loes Janssen and colleagues measure how long and how often parent and child are close in daily life, and how they experience that togetherness. The researchers combine ‘Bluetooth low energy beacons’ with the smartphone app Ethica to track participants' physical…

During illness, the stiffness or viscosity of cells can change. Tom Evers demonstrated this by measuring such properties of human immune cells for the first time. ‘The stiffness of certain cells could be a way to make a diagnosis,’ Evers said. He defended his thesis on March 26th.

Martina Huber, Jacqueline Labra Munoz research Alzheimer's disease. They study ferritine, iron storage in the brain. An inbalance of iron could play a role in this form of dementia.

Halfway through his career alumnus Marc Tijhuis made a radical change: he left the corporate world to join the global battle against waste with the International Solid Waste Association.

‘Everyone’s talking about it, everyone thinks everyone else is doing it, but the reality is disappointing,’ says biochemist Gerard van Westen in his 3 October University lecture in the Van der Werfpark. In the full marquee, he gets a laugh with this suggestion that artificial intelligence is comparable…

Students who also want to develop their artistic talents can take a year-long art class – Practicum Artium – at the Royal Academy of Art in The Hague. ‘I can express my creativity and am learning to approach subjects in a visual way.’

Plants can’t run away from enemies. Still, it would like to keep life-threatening herbivores at a distance. This can be done with odours. Klaas Vrieling of the Institute of Biology Leiden found out with his team how plants change odour production to keep the munchers at a distance.

What does the University mean for The Hague? And what are researchers and students learning from the city and its residents? The Hague city councillors visited Campus The Hague on 27 September and spoke to administrators and researchers. ‘From Schilderswijk to Benoordenhout: we are a university for…

The Capacity to Innovate is a recently published book by Sarah Giest, Assistant Professor at the Institute of Public Administration. In this article Sarah gives insight in the main findings of the book and the experience developing it.

What will happen if the lights in a large part of the city are switched off? How many stars can you see without all that light pollution? This is what researchers, artists and the residents of Leiden are going to investigate during Seeing Stars Leiden on 25 September. ‘Leiden is the ideal place for…

Does medicine make patients feel better or worse? We are getting better at predicting this from people’s DNA profiles, says Professor Jesse Swen. ‘It never fails to fascinate me how one DNA base pair can have such a huge effect on treatment with medication and the outcome.’

Armed with sunglasses, a thick layer of sunscreen and several bottles of water, over 3,300 students have arrived in Leiden for their introduction week. The start of the 55th EL CID happened to be on the hottest day of the year.

The social sciences are vital in navigating complexities, fostering understanding and bridging divides. This was celebrated during the faculty opening of the academic year.

Effectively treating a severe case of pneumonia is often challenging. Identifying the pathogen behind it can be difficult. PhD candidate Ilona den Hartog tried something new: ‘We searched for answers in substances our own body produces.’ PhD defence on 17 September.

Due to technological and societal developments, we are being flooded with more information than our brains can process. How does this affect our decision-making, both as individuals and as a society? And can we learn to make better choices? This is what Lotte van Dillen will explore with her profess…

In the eighteenth century, the Dutch East India Company (VOC) housed its enslaved people on ‘Slave Island’ in Colombo, the capital of Sri Lanka. Today ‘Slave Island’ is under serious threat from property developers. Senior lecturer Alicia Schrikker, together with her Sri Lankan colleagues Iromi Perera…

Leiden researchers have developed a groundbreaking model to advance cancer immunotherapy. Using a 3D printer, they create mini-tumors within an environment that closely mimics human tissue. They have also developed a method to monitor real-time interactions of these mini-tumours with immune cells during…

Imagine scanning lion dung or a mouse dropping and instantly knowing exactly what and how much the animal has eaten. Thanks to new DNA techniques, this is becoming increasingly feasible. PhD student Kevin Groen tested how effective these techniques are at unraveling the diets of wild animals.

Not experiments and lab coats, but computers and artificial intelligence: this year's Nobel Prize in Chemistry went to the inventors of the groundbreaking AI model, AlphaFold. This programme accurately predicts protein structures based on their genetic code—a crucial step in understanding biological…

On 26 and 27 September, Eduard Fosch-Villaronga, Carlotta Rigotti, Mohammed Raiz Shaffique, Marie Schwed-Shenker and Antoni Mut Piña participated in the third edition of Lawtomation Days at the IE University in Madrid.

Study support

Study support

Study information

Workshop Series

Information session

Lecture, Workshop Series

Workshop

An impressive 21 research projects by Leiden researchers have been awarded Veni funding from the Dutch Research Council (NWO).

Shyness is perfectly normal, Michiel Westenberg stated in his farewell lecture. But that doesn’t mean that social anxiety shouldn’t be identified and addressed in good time. ‘Serious shyness has strong genetic roots; you don’t just get over it.’

Lecture, Studium Generale

Lecture, LUCIS Meets | Masterclass

Workshop Series

Workshop

Lecture

Lecture, seminar series

Workshop Series