The energy transition is already a huge challenge for society, but sustainable use of resources is even more complicated. Yet it is at least as urgent. Ester van der Voet has been working on it for decades, for example within the United Nations. Since February, she is a professor at the Centre for Environmental…

PhD students Alex Brandsen and Wouter Verschoof-van der Vaart are both doing a project within the university’s Data Science research programme. The are introducing terms like ‘text mining’ and ‘advanced machine learning’ into archaeology. ‘These techniques will make archaeology more efficient and ch…

Neanderthals used careful techniques to hunt their prey at close range. This is the conclusion of an international team of archaeologists, including researchers, in the journal Nature Ecology and Evolution. Publication 25 June.

Doctoral Thesis

On 21 March 2019, James Welch defended his thesis 'The Grotius Sanction: Deus Ex Machina. The legal, ethical, and strategic use of drones in transnational armed conflict and counterterrorism'. The doctoral research was supervised by Prof. dr. P.B Cliteur.

In this thesis I examine how soil biotic and abiotic characteristics change and interact throughout the course of afforestation and how they subsequently impact tree performance.

Luuk van Middelaar, Professor of Foundations and Practice of the European Union and its Institutions, recently wrote an op-ed in Dutch daily newspaper NRC.

How can we manage our natural resources more sustainably? That’s the key question behind the United Nations’ International Resource Panel (IRP). The panel recently welcomed a new member: René Kleijn, Professor of Industrial Ecology at Leiden University. We asked him three questions about his new rol…

Vicencio Oostra, who defended his PhD-thesis at the IBL successfully in June 2013, published new insights into the hormonal regulation of butterfly responses to fluctuating environments.

Letty ten Harkel has received a Bakels Fund grant from the Leiden University Fund (LUF) for a two-year research programme at the archaeological site of Son Sard on Mallorca. The grant will enable her team to carry out geochemical and geomorphological research into the development and use of the landscape…

A consortium of researchers from the Leiden Institute of Physics (LION), the Institute of Biology Leiden (IBL), and the Leiden Institute of Chemistry (LIC) received a FOM program grant to develop a novel way of studying individual proteins inside a cell using gold nanorods.

Cut marks on the bones of bears show that people in North-West Europe used bearskins to keep warm 300,000 years ago.

On February 24, 2017, the Institute of Biology Leiden organised the first edition of the Biology Career Event. The career event for third year bachelor and master students was well received by the attendants. ‘I felt that the presenters and people doing the workshops were really trying to help us get…

Movement behaviours, such as physical activity, sleep, and the amount of time we sit each day, impact our health. Recently, more researchers are looking at the influence of these behaviours combined, but this is a challenging task. For example, it is difficult to monitor in what way movement behaviours…

Scientists from Leiden and Delft recently discovered old texts using X-ray radiation. The subject was reported in the English newspaper The Guardian.

Current means of fighting bacteria are no longer as good as they used to be because of antibiotic resistance. These days, people are dying from bacterial infections that could have been cured fifty years ago.

Petr Steindl works on quantum dots in microcavities for his PhD research. He manipulates single-photons to create complex structures of light. Applications could include quantum communication and gates for quantum computers.

Patients on patient forums share all sorts of things about their illness: from side effects and advice to messages of support. PhD candidate Anne Dirkson uses artificial intelligence (AI) to retrieve this information. ‘Ninety per cent of the side effects weren’t officially registered.’

PhD defence

Being able to share your emotions is important for social development and for making friends; the same principle also applies in Sesame Street. The makers of the American Sesame Street programme have introduced a new character, Julia, in the hope of helping children and parents understand autism sufferers…

A permanent exhibition on the place of humans in the cosmos. This is something Franx wants to use his Spinoza Prize for. ‘So much progress has been made that we are still trying to define the questions. In finding the answers we are constantly coming up against surprises.’

The Sanquin blood bank gathers data on every donation. Around 720,000 donations are made every year. ‘That generates a mountain of highly valuable data,’ says Leiden PhD candidate Marieke Vinkenoog.

Violence such as assault or head-butting causes pain, shock and distress. It is often seen as savage or senseless. But for those who commit it, violence has meaning, argues violence researcher Don Weenink in his inaugural lecture.

2020 will go down in the history books as an eventful year. The traces left by the coronavirus this year will remain, for students as well as staff at Leiden Law School. A review of the year in photos and videos.

Archaeologist Fulco Scherjon has used computer simulations to identify where and how Neanderthals lived in West Europe. What stood out was that they probably had lots of children and lived in smaller groups than was previously thought. PhD defence on 28 May.

The book ‘The Best of Times, The Worst of Times: Futures from the Frontiers of Climate Science’ by Paul Behrens has been launched in the US, a year after its original release in Europe. In his book, Behrens describes both hopeful and pessimistic scenarios for our planet.

Society has an impact on what is viewed as heritage. Susanna de Beer investigated how heritage can be made enduring by making use of it in the present. Lars de Kruijf, student of Dutch and Journalism New Media, spoke with Susanna de Beer.

Two things are needed to produce fuel from sunlight: an antenna that harvests light, and a light-driven catalyst. The most efficient antennae contain bacteria. An international team headed by Huub de Groot imitated them and discovered how they function.

Authors: Michèle Bos and Jan Melissen

Mia Thomaïdou wants to investigate how criminal courts understand and use the increased knowledge of human behavior. Her Rubicon grant allows for two years of research at the Rutgers University School of Criminal Justice. Leiden behavioral scientist Thomaïdou will be living in New York, where as part…

Just about everything that's known about Charles Darwin has already been said or written. Even so, Norbert Peeters – together with Tessa van Dijk – has managed to write an original book about the great English scholar. In the run-up to Darwin Day (12 February) he tells us about his new book.

Marlien van Mever delved into the analysis of tiny samples, cerebrospinal fluid from transgenic mouse models for example. She validated methods that can now be used to study brain diseases such as migraine and epilepsy. Van Mever will receive her PhD on 14 June.

In the past decades terrorists have regularly surprised us with unexpected and spectacular attacks, such as the one on the World Trade Centre in New York. How can intelligence services stay one step ahead of them? Consult Charles Darwin and Steven Spielberg is the advice of terrorism expert Yannick…

LIACS assistant professor Ben van Werkhoven leads the development of software for optimising graphics processing units. By now, version 1.0 of 'Kernel Tuner' is just around the corner. This milestone shows that the software is ready for serious use.

According to Russian propaganda Ukrainians are Nazis and people from the West are Satanists. Egbert Fortuin thinks we should take this propaganda seriously.

Many of our department’s staff members are actively involved in the Empirical Legal Studies lab and strive towards publishing impactful empirical legal research.

Japanologist and linguist Martine Robbeets is going to use her newly acquired ERC Consolidator Grant to study the origins and spread of Trans-Eurasian languages, which include Japanese and Turkish. With it, she’s tackling one of the most controversial subjects in language history.

Students, staff and alumni of the Media Technology program will make a collective visit to the European Media Art Festival 2021, one of the most influential international forums of contemporary Media Arts.

The Leiden Centre of Science and Techonology Studies has developed 10 principles that are intended to guide the responsible use of university rankings.

On Friday March 12 2021.

On 16 May 2022, Professor Michel Wouters from the Department of Biomedical Data Sciences at the Leiden University Medical Centre (LUMC), will deliver his inaugural lecture titled ‘Quality of Cancer Care: why the real world matters’. Wouters will use the opportunity to describe how quality registries…