Cool Little Kids is a research project that investigates the effectiveness of two programmes on the prevention and reduction of anxiety problems in shy and withdrawn children aged 2-6 years. For more information about the project please visit our Dutch website or contact us via clk@fsw.leidenuniv.n…

In the ‘Cool Little Kids’ research project, we investigate a parenting program that focuses on the prevention of the development of anxiety problems in young, anxiety-prone children.

Welcome to the website of the ‘Brave Little Ones’ research group!

Effectiveness of an early intervention program for anxiety-prone toddlers in the Netherlands

On the 3rd of September, Adrian Stenton successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Adrian on this achievement!

Neanderthals and modern humans in Belgium, a bone story

Lecture

The representation of death children in Dutch literature through time

In this study, Bibi van den Berg and Sanneke Kuipers from ISGA, explore the ways in which cyber-related incidents may lead to crises

The subject of the research is ‘difference and repetition’, an area which bears a direct relationship to Wjm Kok’s practice, in which the production of work always emerges and passes through series.

Natascha van der Zwan, Assistant Professor at Leiden Univeristy, together with two other authors, wrote a book that explored some of the ways coronavirus is impacting the global capitalist system – and how this could change for better and for worse.

Australian cell biologist Melissa Little and Dutch physicist Robbert Dijkgraaf will each be awarded an Honorary doctorate at the Dies Natalis of Leiden University in February 2019. They are receiving these awards for their services to science.

On Tuesday, September 16, 2025, Professor Elisheva Baumgarten (Hebrew University) delivered a Keynote Lecture at the Leiden Jewish Studies Network Conference “Care and the Jewish Experience".

That the new building of the Campus the Hague in the Wijnhaven is literally in the governmental heart of the Netherlands should not be a surprise. But who are our neighbors besides all the ministries and the municipality? Let’s take a little walk around the neighborhood.

The list of substances prohibited by the World Anti-Doping Agency (WADA) is huge. PhD candidate Jules Heuberger looked at many of these, as well as at the methods used to detect them. He concluded that for very few of these substances is there is evidence that they actually do enhance performance. PhD…

No matter how hard Chinese communists tried to control the economy, they could not stop the free market from flourishing. This was the message given by historian Frank Dikötter on 7 February during a lecture on the Cultural Revolution. He will be awarded an Honorary Doctorate on 8 February.

More than 200 students completed their Bachelor’s degrees in combination with a three-year Honours programme last year. On 15 November, this resulted in a record number of certificates since the start of the Honours College 9 years ago. While listening to personal speeches, the students received their…

From recurrent oil disasters to the outbreak of contagious diseases or major fires. Public organisations often learn too little from such crises, according to public administration specialist Wout Broekema. Staff frequently fail to communicate information adequately, which means that lessons are often…

Joni Reef was among those present at the opening of Expertise Centre KIND in 's-Hertogenbosch on Thursday 22 November 2018. She spoke to Dutch newspaper Brabants Dagblad afterwards.

On 19 February 2019, Mirjam Sombroek-van Doorm defended her thesis 'Medisch beroepsgeheim en de zorgplicht van de arts bij kindermishandeling in de rechtsverhouding tussen arts, kind en ouders'. The doctoral research was supervised by Prof. dr. A.G. Castermans en Prof. mr. C.J.J.M. Stolker.

Born in Hungary and moved to Austria, András Bárány grew up bi-lingual. It undoubtedly ignited his interest in languages. In Leiden, he now researches ditransitive constructions in over a hundred languages, this way taking another step in untangling some basics of human language.

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…

Cookware handles, electrical plugs, brake pads. Unlike other plastics, these ‘thermosets’ cannot simply be melted down and reshaped, making them difficult to recycle. Chemist Roxanne Kieltyka and her team are now exploring a way to make these materials recyclable, potentially transforming the way we…

Dutch children’s picture books are full of animals, but mainly mammals are portrayed. Especially pets and exotic animals are popular. A large part of the Dutch fauna is less visible, but biologist Michiel Hooykaas of Leiden University sees plenty of opportunities for a more biodiverse book world.

A seemingly huge car factory in Amsterdam turns out to be a financial hub in Tesla’s global empire. Jan van de Streek, Professor of Tax Law, investigated Tesla's annual accounts with ‘Follow the Money’: ‘We'll probably never discover how that works.’

The ‘spreidingswet’ (dispersal law) has been passed by Dutch Senate and will take effect on 1 February. In the municipality of Westland, however, a majority in the council is unwilling to create 700 extra reception places.

Acute stress seems to have a surprisingly positive effect on our health. Researcher Erin Faught received an NWO veni grant to find out why that is and how we can use that knowledge to our advantage. For her lab research, she uses a remarkable small animal to learn more about our own stress levels.

The idea that modern humans displaced Neanderthals because they were better protected against toxic smoke components is now under fire. An earlier study that put forward this suggestion has now been refuted by genetic research by scientists from Leiden and Wageningen. This new research was published…

Election Day is over, but it's by no means clear who the new President of the United States will be. On the morning after Election Day, US expert Sara Polak relects on the results that are in so far, and looks ahead to the coming days.

Financial support that wealthy countries provide to poorer countries in order to help them combat climate change and the associated emissions was the central topic of this year's UN Climate Change Conference in Baku. Annemarie Drahmann, Associate Professor of Constitutional and Administrative Law, discussed…

Eastern and Southern European countries struggle with ‘brain drain’ as skilled workers move to other EU Member States. Could restricting free movement be a legitimate and lawful way to address this trend? Researcher Martijn van den Brink will investigate the issue.

Sugar excipients, needed to stabilize medicines, can be unsafe for patients due to an impurity discovered recently by Daniel Weinbuch. ‘The biopharmaceutical industry should now consider new excipient quality criteria for safer drug development,’ he says. PhD defence on 13 December.

Antibiotic resistance is an economic problem. Pharmaceutical companies cannot earn much from antibiotic research, so they do not invest in it. This makes it important that universities do so, says Ned Buijs.

A special relationship between plants and fungi, which plays an important role in carbon storage in soil, has the potential to slow down climate change. However, the amount of carbon stored in soil is decreasing as a result of human activity. This is what researchers say in a publication in Nature Communications.…

The ongoing conflict in Kashmir is often seen as a political issue between India and Pakistan. Idrees Kanth, who has written a dissertation on the subject, believes that the people of Kashmir are the primary contenders in the conflict and should be allowed their right to decide their own political fate.…

Researchers, civil servants and local residents met on 27 September to talk about partnering for sustainability. What were the results? In a green ‘city oasis’ in the centre of The Hague they spoke about the energy transition, bottom-up initiatives and citizen science.

Should we be growing rice and building materials instead of grass for cows? From invasive crayfish to cultural heritage and groundwater levels: ten graduating students explored the future of the Groene Hart, the rural region just outside the cities of Delft, Rotterdam and Leiden where they study.

A recent study in Ecological Economics, led by Leiden environmental scientist Bertram de Boer, states that the European Union could lower its environmental footprint by carefully selecting the countries from which it imports goods. The publication was picked up by Science for Environment Policy, a news…

An international team of researchers including Leiden archaeologists has produced convincing evidence that 300,000 years ago pre-Neanderthal people had a high level of cognitive complexity. New insights into early human capabilities and behaviour.

From exercises for working more healthily to practical tips about getting a good night's sleep. Students and staff who take part in the Healthy University Workshops on 18 or 19 October will be given tips to suit their personal situation.

‘In the field of AI, Leiden is still a relatively unseen university,’ says Thomas Dohmen. The brand-new Director AI Collaboration Center, would like to forge a Leiden AI collaboration network, with sustainable and impactful relationships between the university and civil society organisations. The question…

On 11 May the House of Representatives voted in favour of a law that will enable some sectors to reopen sooner than planned with the aid of test certificates. Political philosopher Josette Daemen is critical of the new legislation. ‘Just because we get used to measures doesn’t make them desirable.’

Starting 2 July 2022, a new exhibition will be opened to the public at the Old Observatory: More-than-Planet. This exhibit asks the question: how do we imagine our planet?

The high number of students that we are used to in the West would never have been possible if Latin were still the language of instruction in our universities. In his PhD defence on 16 September, Bert van Pinxteren will argue that Africa could gain a lot from a similar language switch in secondary e…

Nanotechnology has pervaded numerous industrial sectors over the past decades. Although many of us may not be aware of it, nanomaterials are now embedded within many of the the products we use in our daily lives. The agricultural sector might be next in line. Leiden environmental scientists Tom Nederstigt…

What practical steps can we take to resolve cross-border claims to looted art and prevent illicit trafficking in cultural goods? That's what the European Parliament asked Leiden legal scholar Evelien Campfens. Her advice: develop a registration system, issue art with a ‘passport’ and set up a European…

Researchers need to work in specialized environments when they work with dangerous bacteria and viruses. These microbes spread easily, so only in labs with a high biosafety levels they can be studied. Unfortunately, to look at the microbes properly, expensive microscopes are needed that are not always…

It is the largest database for space ice yet: The Leiden Ice Database for Astrochemistry: LIDA. Created by astrophysicists at the Leiden Observatory, LIDA includes not only hundreds of measurement data, but also software to examine astronomical observations and prepare new measurements with the James…