A useful hands-on guide to preprints is now available for researchers. It provides anwers to some urgent questions. What are preprints? What are the advantages and disadvantages to posting preprints? What are the implications for (my) research?

Despite the promising effects of technology in assessment and treatment, the actual use of novel technologies in juvenile justice context remains limited. We want to inspire researchers to develop and investigate technological applications for assessment and treatment for justice involved youth.

Rector Magnificus Carel Stolker will retire on 8 February. If there’s one theme running through his career, it’s the links between the University and society. In this series of pre-retirement discussions, Stolker will talk one last time to people from within and without the University. This time he…

Is the right to choose your healthcare provider protected in the Dutch Constitution? What are the consequences then for the Dutch healthcare system? PhD defence on 5 July 2022.

Dutch and Flemish partners, including Leiden University, are joining forces as the European Digital Media Observatory (EDMO) in the fight against the spread of fake news, and have received the support of the European Commission.

Paul Wouters has been involved in open science for 30 years, from his first introduction to a preprint server in 1992 to his recent roles as Dean of the Faculty of Social and Behavioural Sciences and open science ambassador for Academia in Motion. Wouters is now retiring. He is leaving with high hopes…

For two decades, language experts were certain that babies were able to learn language rules from as young as the age of seven months. However, recent research carried out by a consortium of four Dutch baby labs led by researchers from Leiden cast doubts on this certainty. We spoke to researchers Andreea…

Matt Young, Assistant Professor at the Institute of Public Administration, has won the 2022 Camilla Stivers Award last week. Young and his co-authors received the award for the article ‘Artificial Intelligence and Administrative Evil’. The Camilla Stivers Award is given annually for the best article…

Over 30.000 pages of new material have been added to the online collection of unofficial poetry publications from China in the Leiden Digital Collections. Produced outside the system, these journals and books are hugely influential yet very hard to find. To address this paradox, Leiden University Libraries…

The sustainable production of hydrogen could potentially be made more efficient by adding a cleverly chosen salt to the process. Researchers at the Leiden Institute of Chemistry (LIC), in collaboration with physicists at the University of Twente, have discovered that the type of salt present in the…

How adolescents perceive parenting is related to their mood. Differences between the perspectives of parents and adolescents are also of importance for adolescents’ mood. That is what research by Loes Janssen and her Leiden University colleagues in Clinical Psychology shows. Open Access publication…

What with coronavirus, the American elections and the Brexit botheration, we had almost forgotten that something miraculous happened in 2020: the repressed people of Belarus rallied against dictator Alexander Lukashenko, who has been in power for 26 years. Months later, what remains of the protest?…

Would you like to share your academic research with a diverse international audience? On the not-for-profit news platform The Conversation, academics and journalists team up to write research-based articles. Leiden University recently partnered with this platform, and two of our colleagues share their…

Psychologists Anna van ‘t Veer and Eiko Fried will start a scientific integrity workshop tour after the summer, called Responsible Scholarship: Psychology. Their aim: giving the subject a more prominent position in the academic’s mind.

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?

Different groups of hominins probably learned from one another much earlier than was previously thought, and that knowledge was also distributed much further. A study by archaeologists at Leiden University on the use of fire shows that 400,000 years ago knowledge and skills must already have been exchanged…

Angry politicians, angry journalists: the initiative of Forum for Democracy politician Gideon van Meijeren during which he secretly filmed a reporter portraying them as a ‘sewer rat’, caused a lot of anger. Where does all this commotion come from? Wouter Hins: ‘Calling a journalist a "sewer rat" is…

Compared to suspects with the Dutch nationality, foreign nationals face court proceedings more often and are given a prison sentence more often than Dutch suspects. This was the outcome of research conducted by Hilde Wermink, Assistant Professor at Leiden Law School, and American sociologist Michael…

The life cycle of comets near the star Beta Pictoris is similar to that of comets in our own solar system. This is the conclusion of a team of astronomers from the Netherlands, France and Brazil. It seems that, just like in our own solar system, there are fewer comets as the star gets older. The researchers,…

It is the eighth year in a row that the Faculty of Archaeology is placed in the top ten of archaeological institutes worldwide. The QS World University Rankings by Subject looks at criteria like academic reputation and citation ratios.

Dutch citizens are not opposed to additional earnings and financial gifts for people on welfare, but believe it is important that there should also be an obligation to look for a job. This was the outcome of a research project on the opinions of Dutch people regarding the implementation of welfare p…

World history is often framed in terms of flows of people and migration: humans coming ‘out of Africa’, the spread of farmers in the Holocene, Phoenician and Greek diasporas over the ancient Mediterranean, the colonization of the world by Europeans from the 16th century onwards. Together with his Exeter…

Tech company Uber uses various tricks via the Netherlands to avoid paying tax on its profits. A $16 billion inter-company loan from Singapore has prompted questions with experts claiming the loan is not under arm’s length terms. MEP Paul Tang wants Brussels to investigate.

Self-employed workers’ hours have significantly decreased during the coronavirus crisis. Their average hours worked decreased most at the start of the crisis, by more than five hours per week. And it was difficult to return to their pre-crisis hours in the quarters that followed. This is the conclusion…

Leiden University joins the Just Transitions for AMR Working Group, an interdisciplinary team of social science and humanities researchers who are exploring ways to mitigate the growing threat of antimicrobial resistance in a just and equitable manner, with due consideration to the human rights of present…

Leiden psychologists Janine Westendorp and Liesbeth van Vliet have investigated types of communication that seriously ill patients may experience as harmful. The results of this research were published in the American journal Cancer. And the results have now also been published as a poster for education…

Jus post bellum, the body of laws and norms governing the transition from armed conflict to peace, has emerged as a crucial issue for international law scholars, governments, and all concerned with building a just and sustainable peace. The Jus Post Bellum Project, funded by the NWO and hosted by the…

Why are morpho butterflies blue? That is what high school students Frederique Kerstens and Koen van Griensven investigated in their high school profile paper at the Leiden Institute for Research in Physics. In doing so, they won the KHMW Profielwerkstukprijs 2023. ‘We didn't expect it, but are of course…

Arteriosclerosis bears great similarities to autoimmune diseases. Researchers from Leiden University show this in a new study they published in the renowned scientific journal Nature Cardiovascular Research. 'This discovery suggests that treatment methods for autoimmune diseases might also be effective…

In healthcare, gender and sex considerations are crucial because they affect individuals' health and disease differences. Yet, most algorithms deployed in the healthcare context lack close consideration of these aspects and do not account for bias detection. In their latest paper, Eduard Fosch-Villaronga,…

Cathalijne van der Plas will become Professor of Private International Law (0.4 fte) at Leiden University as of 1 October 2021. She succeeds Prof. Sierd Schaafsma who has become a judge at the Supreme Court as of 1 May 2021.

In a new article in the journal Scientific Reports, Leiden archaeologist Wei Chu and colleagues report on recent excavations in Western Romania at the site of Româneşti, one of the most important sites in southeastern Europe associated with the earliest Homo sapiens. The site gives an important glimpse…

The winners of the JSVO teaching prizes for academic year 2020-2021 were announced at the opening of the faculty year on 7 September 2021.

Drained leaves and plants stripped bare. Insects can completely destroy crops. Soon, these situations may be behind us, with the new pesticide developed by Leiden and Wageningen researchers. With their plant-based ‘insect glue’, insects are incapacitated.

Natalia Sobrino-Saeb, third-year student at Leiden University College The Hague, won the challenge by the Ignitor Fellowship Program held by the Nobel Peace Center for her essay on the threats to journalism in Mexico. On December 10th Natalia met the Committee of the Ignitor Fellowship in Oslo and attended…

Leiden University Libraries

Better supervision of PhD candidates, clear guidelines on career paths and an MRI scanner that can be accessed by all researchers: these are the recommendations from the new self-evaluation. Colleagues say: ‘This forces us as an institute to formulate our mission and vision more precisely.’

Lecture, China Seminar

Op dinsdag 10 januari 2022 zijn tijdens de facultaire nieuwjaarsreceptie de jaarlijkse Meijersprijzen en de scriptieprijzen uitgereikt.

Leiden University has an active open science community. Open science means transparency in all phases of research by precisely documenting every step of the way and making this publicly available. ‘It’s time to be open,’ say psychologists Anna van ’t Veer and Zsuzsika Sjoerds. There is increasing awareness…

On International Women's Day (8 March) we take time to consider female emancipation and participation. What does this day mean for Leiden University, and how does it tie in with our aim of becoming more diverse and inclusive? We talked about these issues with Annetje Ottow, who recently became the…

On January 16, 2022, our respected and beloved colleague Prof. dr. Bas Edixhoven passed away after a short period of serious illness.

For thirty years, the Dutch Newspaper AD conducted an annual search for the best herring. This came to an end when economist Ben Vollaard, based on a statistical analysis, claimed it was rigged. But that claim doesn't smell right, says Leiden statistician Richard Gill. ‘The way you code and process…

Education, Organisation

This Thursday, January 18th 2024, our esteemed colleague Jan Zaanen passed away. Jan was one of our star scientists, larger than life, with an unabashed, boisterous drive for the best of physics at the Institute Lorentz, at the Leiden Institute of Physics and in the full international scientific community.…

Lecture

Lecture

The starting point of human-induced landscape changes has been under permanent debate. It is widely accepted that the emergence of agriculture strongly increased human impact on their environments. However, foragers can and do actively transform land cover and ecosystems. Ethnographic observations,…

Jasper Knoester started on 1 January as our new dean. How is he finding it, what kinds of things is he doing and what does his day look like? In every newsletter Jasper gives us a peek into his life as dean.

Researchers from Leiden University Medical Center (LUMC) have discovered how malaria parasites escape the immune system of mosquitoes. The so-called QC enzyme changes proteins on the outside of the malaria parasite such that the immune cells are unable to recognise the parasite. As a result, the parasite…