Central in coordination and organometallic chemistry is the synthesis of new chelating ligands, the synthesis and characterization of metal complexes with these ligands, and the study of their properties. An important goal in my research is to create understanding of the relation between the structures…

This dissertation focuses on the systematic vowel alternations displayed by the Proto-Germanic n-stems. The fact is, that many of these nouns now appear to have preserved the ablaut system of the Indo-European proto-language spoken some five millennia ago. In this respect, the n-stems are truly comparable…

The project aims to explore Eurasian elk's role in the ecosystems of the past and its relationship with humans through analysis of its distribution and habitat in the Netherlands.

This month Johan Christensen, assistant professor at the Institute of Public Administration, published his new book: ‘The Power of Economists within the State’. The book explores four countries, Denmark, Ireland, Norway and New Zealand and analyses why these similarly sized and wealthy countries have…

An unprecedented space telescope, an astrolab that makes space ice and molecules that may lead to the origin of life… The Ice Age project has all the prerequisites to become a very fascinating research project – if it is not one already. Leiden astronomers Melissa McClure, Harold Linnartz and Will Rocha…

Product packaging is essential. It prolongs shelf-live and highly influences purchasing decisions. However, it’s also a big source of waste, especially single-use plastic. Have you ever felt conflicted choosing a product due to the material it’s packaged in? Or opted for a different product due to its…

The multiple connections between emblematics and Natural History in the broader perspective of their underlying artistic, literary, political and religious ideologies.

Research reveals how boys respond to harassment awareness training and why they often fail to see street harassment as 'their' problem.

At the start of the 20th century there were fewer than 2 billion people. Now at over 7 billion, Earth’s population is on target to reach 8 billion by 2027. How has this dramatic increase in human population impacted Earth’s life support systems and natural resources? How should we understand the meaning…

Single-celled organisms have stiffer DNA than multicellular lifeforms like humans and rice. Theoretical physicists managed to simulate the folding in full genomes for the first time to reach this conclusion. Publication in Biophysical Journal on February 7.

This article discusses the coevolution of several species of the tribe Phyllantheae and moths of the genus Epicephala.

On the 23rd of September, George Saad successfully defended a doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates George on this achievement!

On 27 January 1900 thirteen female students gathered and established the Leesgezelschap van Vrouwelijke Studenten te Leiden (reading association for female students in Leiden).

On the 6th of July, Anthony Jakob successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Anthony on this achievement!

Professor of Pharmacochemistry Ad IJzerman has won the Nauta Award for his years of research into signal processing proteins that are interesting for the development of new medications: G protein coupled receptors. The prize is awarded every two years for services to pharmacochemistry and chemical b…

Man-made sounds in and around the oceans stress marine life and have an impact on marine species and ecosystems by changing the underwater acoustic climate. Hans Slabbekoorn from the Institute of Biology Leiden pleads for technical solutions to mitigate problems of noise pollution. Science review paper…

In 2009, the European Union adopted the Renewable Energy Directive (RED), mandating Member States to obtain 10% of all transport fuels from renewable sources by 2020.

This pioneering project will answer this question by examining migrants through the eyes of the courts between 1600 and 1900. It aims to reveal patterns of continuity and change in: 1. Treatment of migrants by criminal courts; 2. Violence and conflicts between migrants and native born.

Over the past year and a half, China’s diplomacy has attracted attention from media institutions, policy makers and scholars around the globe.

The project seeks to develop an eco-design framework for single-use medical devices and packaging

Physicists have manipulated light with large artificial atoms, so-called quantum dots. Before, this has only been done so well with actual atoms. It is an important step towards light-based quantum technology. Publication on August 30th in Nature Communications.

In the hunt for a vaccine against cervical cancer, fundamental knowledge about the immune system and organic chemistry have been brought together and have already resulted in a vaccine that is now being tested in clinical trials. Scientists are now working hard on an improved variant.

People are more likely to cooperate with their compatriots than with people from other countries. This tendency can frustrate collaborative projects, such as cross-border cooperation for the provision of public goods. This is the conclusion of Leiden social psychologist Angelo Romano.

On 21 March The Netherlands Centre for Electron Nanoscopy (NeCEN) hosted the Life Sciences Café. Around 60 people from neighbour companies from the Leiden BioScience Park visited the facility for cryo-electron microscopy to get a glimpse behind the scenes. Head of NeCEN Ludo Renault believes it was…

Astronomers have discovered seven Earth-like planets around a dwarf star in our galaxy. Three of these planets are located in the habitable zone of this star, and may contain liquid water. ‘The next step is to study the atmospheres for signs of life. In Leiden we are experts in that area,‘ says planetary…

New PhD opportunity at University of Amsterdam in 'Intercultural Contact and Identity Formation in Premodern Frontier Zones'. Deadline for application: 15 April 2025

Do citizens care for interest representation? A study on citizens’ perceptions and feelings towards the representative potential of civil society

The type of question that museums ask about objects in their collection influences conversations between parents and children. Researchers from Leiden University and Naturalis Biodiversity Center studied how questions influence conversations. Publication in Visitor Studies on 2 July.

On 16 May, three researchers from Leiden University will present their findings on the democratic consequences of decentralisation at a workshop in Leiden. Their research project, Downsize My Democracy?, shows that decentralisation does not automatically lead to a stronger democracy. On the contrary,…

Preventing terrorism before it happens seems like an idea no one would disagree to. But is it possible? How do counter-radicalisation policies look like? And are there dangers of unintended consequences? Francesco Ragazzi, Assistant Professor at Leiden University’s Institute of Political Science, has…

At the end of a difficult year, students of ACPA’s Music Minor have put together “sonic postcards” to capture their experience of life under Covid restrictions. The result is a powerful, intimate statement about our pandemic fears and hopes.

Alumnus Peter Burger – along with his colleague Alexander Pleijter – is the face of fact-checking in the Netherlands. ‘My degree led straight to this.’

Product packaging is essential. It prolongs shelf-live and highly influences purchasing decisions. However, it’s also a big source of waste, especially single-use plastic. Have you ever felt conflicted choosing a product due to the material it’s packaged in? Or opted for a different product due to its…

The Faculty of Governance and Global Affairs of Leiden University in The Hague has developed a Serious Game, 'het Grote Migratiespel' to introduce secondary school students to their study and research programmes.

We are happy to announce that the following missions have been approved by the Ministry of Antiquities, pending final security confirmations:

If you walk along the Hooglandse Kerkgracht in the coming months, you will see a metal box completely out of tune with rest of the landscape. It seems to have come from 'elsewhere'. The box is the results of a collaboration between the Old Observatory and incarcerated minors.

Leiden University commemorates its victims of the war and pays tribute to all members of the university community who resisted injustice.

On 5 July 2021, GTGC Chair Jan Aart Scholte moderated a panel on digital data governance during the 2021 Conference of the Society for the Advancement of Socio-Economics (SASE).

What is the optimal investment policy according to which a firm adapts its capacity in a competitive market?

During Pinochet’s dictatorship (1973-1990) numerous left-wing Chileans fled to Europe. In exile some of their political views became more moderate. Mariana Perry defended her PhD about this topic in September.

Chemical biologists from Leiden, led by Dr Mario van der Stelt, have discovered substances that can reduce inflammation processes in the brain. This is a first step in the development of potential medicines for the treatment of brain diseases like Alzheimer's and Parkinson's. Published in Proceedings…

Leiden archaeologists investigate how people in the past impacted their environment. Together with scientists, environmental scientists, and humanities experts, they use this information to draw conclusions about the present – and show what we can learn from it for the future.

The elderly accept may minor discomforts like stiffer muscles and getting tired more quickly, but they do want to go to their children's birthdays independently. Preventive elderly care helps people with that. The goal is to let people grow old while maintaining their self-reliance and independence…

The more people are vaccinated, the more society can slowly reopen. Technological developments, like the Covid passport and other apps, can play a role in this. Artificial Intelligence could help greatly in developing the vaccine passport and the Covid-19 exposure notification app, Anne Meuwese and…

Catalyst research aims to make gasoline less polluting. It turns out that during experiments it is actually necessary to protect catalysts from air itself. Publication in The Journal of Physical Chemistry C on August 26.

PhD student Wen Yang discovered how certain cell receptors in E. coli bacteria signal 'smells'. With the use of ice-cold electron microscopy microbiologists from Leiden gain more insight into how bacteria respond to their environment. Publication in mBio.

2024 has been an eventful year, and this is reflected in our social media posts. An overview of the most liked, most shared or most impressive posts.