In the academic year 2021-2022 the Social Resilience and Security interdisciplinary programme will offer two courses for interested students who are entering the third year of their Bachelor's degree. You can sign up for these courses in your elective (minor) space. The courses are available to students…

Do you want to be successful at stopping smoking? If so, the main thing is that you should see yourself as a non-smoker. Psychologist Eline Meijer has discovered that smokers who are unable to do this are more likely to resume smoking. This is more common among smokers from a lower socio-economic background.…

A new AI model will soon be able to predict the risk of infection in postoperative patients. This will allow healthcare providers to take preventive measures and detect complications at an earlier stage.

Over hundreds of thousands of years, our region witnessed the comings and goings of various types of hominin. This depended on the temperature as ice ages alternated with warmer periods. In ‘De eerste mensen in de Lage Landen’ (‘The First Humans in the Low Countries’) Leiden archaeologists Yannick Raczynski-Henk…

Stacked layers of graphene can act like a mirror for beams of electrons. Physicists Daniël Geelen and colleagues discovered this using a new type of electron microscope. In an article in Physical Review Letters, they describe their results, which could lead to the development of optics for electron…

Last week, third-year students of the Bachelor Security Studies concluded a seven-week intensive programme with a two-day conference. They presented their findings in front of a full lecture hall and in the presence of the client for whom they worked on a complex security issue. Tutor Saskia Postema:…

Is our universe built up out of warm or cold dark matter? The standard model assumes cold dark matter particles, but astronomer Sylvia Ploeckinger is now testing the possibility of a warm counterpart: sterile neutrino’s. For this project, she received an NWO Physics/F grant, a special grant for women…

The winner of the highest scientific distinction in mathematics, an explanation for wine tears and much more mathematical theory and application. From 8 to 12 July, 550 mathematicians will meet in the center of Leiden to discuss differential equations.

Alumnus Nick Hortensius started volunteering at the Leiden International Film Festival (LIFF) in his student days. He has since grown with the festival to become head of programming. How does he look back on his student days? And what can we expect from the festival this year?

Victor Gijsbers, university lecturer in Philosophy, has been chosen as a fellow of the Leiden University Teachers' Academy. Over the next five years and with €25,000 to spend, he will be looking for a new interpretation of the Philosophy of Science for Humanities course. ‘Treating a tough and abstract…

After years of lobbying by environmental activists, a deposit scheme for small plastic bottles is to be introduced on 1 July 2021. One of the leaders in the fight is alumnus Merijn Tinga. The university will have collection points for plastic bottles and is also supporting the Plastic Spotter citizen…

Eye contact between parents and children improves their mood and increases feelings of connectedness on both sides; but not in the case of depressed adolescents, Mirjam Wever discovered. Where the parent-child bond has been disrupted, it can be strengthened not only with therapy for the child but also…

Debates about the ‘end’ of the Roman era, how, when, and even if it ended, are still very much alive and raging. However, what happened after the (long) late antique period is a lesser-known and lesser-studied subject. The post-Roman past needs, however, as much energetic investigation and discussion.…

Prison and student life are worlds apart. But in the Learning Behind Bars project, Leiden criminology students get the chance to study inside prison walls with people incarcerated there.

During the Faculty of Science New Year's reception, Daniël Rozen was named Discoverer of the year 2015. Nienke van der Marel and Koen van der Maaden both won the prize for the best dissertation and Jeroen van Smeden was named Best Teacher of 2015.

‘A challenging rollercoaster, but also a very bonding and insightful experience,’ that’s how the team of iGEM Leiden 2022 wraps up their participation in the iGEM contest. The contest for synthetic biology climaxed during the Grand Jamboree in Paris. The team ended up in the top 10 of over 360 teams…

A group of astronomers led by Leiden PhD student Sebastian Zieba has discovered using the James Webb Space Telescope (JWST) that the rocky exoplanet TRAPPIST-1 c has a thin atmosphere. Although the planet is nearly identical to Venus in size and temperature, and was expected to have a thick atmosphere,…

Have you had your eye on one of our Summer Schools? Or perhaps a Summer School elsewhere to complement your Law Master, but you have not been able to decide whether it has enough added value? One of our international alumni, Mariasole Forlani, tells us enthusiastically about her experience of the international…

The cloud is of increasing importance in our daily lives. It is thus crucial that they work properly and are reliable. Alex Uta, assistant professor at LIACS, received a Veni grant to investigate the reproducibility of experiments in the cloud.

The Rutte-III coalition agreement has been presented and the commentary is flooding in. Public administration experts Arco Timmermans and Gerard Breeman examined the new agreement – as they have done for every coalition agreement since 1963 - and made a systematic analysis of it: it is very much about…

Professor of Sociohistorical Linguistics Ingrid Tieken-Boon van Ostade was appointed Knight in the Order of the Lion of the Netherlands on 11 September in her home city of The Hague. Deputy Mayor Bert van Alphen presented her with the decoration.

Elephants ranged over Schöningen in Lower Saxony 300,000 years ago. In recent years, remains of at least ten elephants have been found at the Palaeolithic sites situated on the edges of the former opencast lignite mine. Now, a collaboration of archaeologists from University of Tübingen and the Lower…

Fifteen knowledge institutions and the Ministry of Education, Culture and Science have signed the covenant for Open Science NL. Leiden University has also joined the covenant, via the Universities of the Netherlands. This marks the start of the Dutch Research Council’s and brings the transition to open…

He did an English-taught degree, completed a master’s abroad and now teaches on an English-taught programme at Leiden University College The Hague. Jan Meijer is the definition of an international researcher and he’s proud of it.

Facebook is under attack due to the scandal with Cambridge Analytica: Data of tens of millions of users have been leaked. Does this mean the end of Facebook? ‘The storm will pass,’ says security expert Erik van der Kouwe. He provides tips on how to keep Facebook from following your every move.

There are more molecules that could conceivably be candidate drugs than there are stars in the universe. How can we ever efficiently identify those molecules? Professor of AI and Medicinal Chemistry, Gerard van Westen: ‘I’m going to use artificial intelligence as the co-pilot to make an automated search.’…

A team led by Leiden University in the Netherlands and the National Radio Astronomy Observatory have, for the first time, robustly detected semi-heavy water ice around a young sunlike star. In this ice, some of the ordinary hydrogen atoms have been replaced by deuterium, a heavier variant of hydroge…

Want to explore a different specialist field? Or maybe study a topic from your programme in more depth? This summer Leiden University is again offering a broad selection of Summer Schools.

Do you gain enough practical experience in an academic language and culture study programme? Certainly, proved the bachelor students of Italian this summer. For the Transfer IT programme, they combined their own interests with the knowledge they gained during their studies. This resulted in vastly different…

Students used to live with a landlady or even with the professor whose course they were taking. Student accommodation has since become more professional, making it something the new government will have to tackle. What should the new government do?

White clouds of ice-cold gas flowing across the floor. Magical, but be careful not to freeze your fingers off. We are of course talking about liquid nitrogen and helium. You may have seen the spectacular Freezing Physics science show by the student organisation Rino. But did you know that this commodity…

The NWIB Visiting Professors Programme offers assistant professors, associate professors and full professors at participating universities (see below) a unique opportunity to work undisturbed in an inspiring and stimulating environment. This programme enables you to stay at one of the five Netherlands…

Volgende week lanceren we de nieuwe podcast Mind the Gap, een initiatief dat studenten begeleidt bij de overgang van afstuderen naar hun eerste baan. Hosts Laura van der Plas en Loes Velthuis vertellen in dit interview meer over de podcast, waarin ze praktische tips delen voor een realistische en zelfverzekerde…

No less than six Leiden projects received a grant for quantum research from the national growth programme Quantum Delta NL and the NWO. After all, in order to boost quantum technology not only industry is needed, but also science. Research towards new sensors, faster algorithms and quantum materials,…

With this quote in mind, we organised an alumni event in Brussels for those alumni that live and work in the Brussels Area. 67 mostly young alumni - the majority graduated in the years 2010-2019 - showed up at the beautifully renovated Holland House, situated near the lively Place du Luxembourg (better…

Four PhD researchers of Leiden University have been selected to participate in the Europaeum Scholars Program 2022-2023. Two of them, Lena Riecke and Sophie Vértiter, are doing their research at ISGA. Time for a introduction.

Ab de Jong, professor of Comparative Religion, was appointed as the new the academic director of the Leiden Institute for Area Studies (LIAS) with effect from 1 September. We asked him about his plans for the future of the LIAS.

Where should you plant ten trees so that as many city-dwellers as possible can enjoy them? If a smart algorithm knows how people move through the city and where there are already trees, it can calculate the optimal solution. Data scientist Mitra Baratchi makes this possible. Her students are now using…

All first-year bachelor’s and master’s students at the Faculty of Archaeology have been assigned a student as a mentor to help them find their way around their new city and degree programme. These mentor groups, with ten to fifteen students, will also give students the chance to get to know one another.…

Leiden University is under fire: it is allegedly doing too little to tackle antisemitism. Rector Hester Bijl responds to this accusation and to a video from 2014 on social media in which extreme remarks are made. ‘We can be short about such comments: they are unacceptable. The university is and always…

In donut-shaped buildings, particle accelerators take super-detailed X-ray images. Yet those images are not good enough to learn how to drive on hydrogen for example. Mathematics PhD student Allard Hendriksen has developed an algorithm that improves the images without having to learn from data from…

The COVID-19 pandemic and associated measures during the first lockdown in the Netherlands in March 2020 caused major changes in daily life. Parents worked from home and children followed school online. Therefore, the families were forced to spend more time together. This is particularly difficult for…

Over 20,000 students, lecturers, administrators, support staff and many others protested on 25 November against the plans to make billions of cuts to higher education. Students and staff from Leiden University also travelled to The Hague to voice their objections to the disastrous plans.

The Centre for Science and Technology Studies (Leiden University) has adopted a new governance structure. As of January 1, 2019, the centre will be led by Prof. Sarah de Rijcke, who has been appointed by the board of the Faculty of Social and Behavioral Sciences (FSW) as the new scientific director…

Search engines are getting better at answering our questions. And chatbots are increasingly likely to search the internet for relevant sources. ‘Search engines and chatbots will become more closely entwined’, says Professor Suzan Verberne.

Why do vulnerable groups fail to make use of benefits that they are entitled to? This is what Max ten Velde researched in his Master’s in Management of the Public Sector thesis, which has been nominated for the Netherlands Court of Audit’s thesis prize.

Last Thursday the Dutch House of Representatives held a debate on children being put into care when the childcare benefits scandal (toeslagenaffaire) had caused problems for their families. Four Leiden University academics were asked by the House to produce a fact sheet for this debate, bringing together…

Author and political scientist Mounir Samuel has spent recent years delving into the many ways that language can exclude people and bring them together.

With his clever measuring methods Ignas Snellen – together with his team – was the first to detect carbon monoxide in the atmosphere of exoplanets. For his pioneering work the Leiden astrophysicist has been awarded the Spinoza Prize, the highest academic honour in the Netherlands. The prize of 2.5 million…

Bacteria that fluoresce green, blue or red may play a role in combatting resistance against antibiotics. Under the motto of 'Say yes to stress', thirteen ambitious Leiden students are aiming to amass 9,000 euros to carry out their research project.