The number of students suffering from stress and anxiety has decreased slightly compared with 2021. But around half still suffer from mental health problems. This is according to the National Mental Health and Substance Use Monitor.

He was a popular face in the Leiden student world and even developed his own merchandise, but all good things come to an end. After seven years, community support officer Dennis Perdok (49) is leaving this role. Last week he bid farewell to the police and to his job in Leiden’s city centre.

Antique wooden oars, hard-fought medals and iconic photos from rowing history. An exhibition at Oude UB spotlights key figures and moments from the 145-year history of Njord Royal Student Rowing Club.

In the summer there are three big introduction weeks for new students – EL CID, HOP and OWL – but students also begin their studies in Leiden or The Hague halfway through the year too. International students, for instance, who are coming for on an exchange for a few months. They got to know the University…

Leiden University and four other parties have signed a declaration in which they agree to improve the well-being of students in Leiden. They signed this Declaration on Student Well-Being on 5 April at the Leidsch Besturendiner, a dinner for student associations, universities, local government and bu…

Inaugural lecture

A complete transformation of the steel cycle in the Netherlands with the ultimate goal of a CO2 neutral steel sector by 2050. For this purpose, the Growing with Green Steel program receives €100 million from the National Growth Fund. From Leiden, Professor of Industrial Ecology René Kleijn is involv…

Annick Dezitter from Belgium celebrates 3 October with heart and soul: she has become a fanatical Leidener. Her portrait is part of Leiden meets Europe: an exhibition of 28 portraits of EU citizens in Leiden. City photographer and third-year Cultural Anthropology student Wilke Geurds explains.

Only the fittest cyclists stand a chance of taking yellow in the brutal Tour de France. Team Jumbo-Visma is working with data scientists from Leiden. They have analysed the stages and performance of Jumbo-Visma’s riders in previous Grand Tours. And they are researching how to determine the fitness level…

The conference cycle Voces. Latin Middle Ages through Key Words, co-organised by the IRHT (CNRS) and Institute of Polish Language (PAS) aims to take a closer look at Latin words that have played an important role in the medieval culture. This year's edition focuses on the concepts of FEAST, CELEBRATION…

PhD defence

PhD defence

PhD defence

PhD defence

Ukrainian Yana Rudenko lived through the Russian occupation of Bucha in March 2022 and thereafter came to Leiden to study. thereafter De Oekraïense Yana Rudenko (24) jaar heeft in maart 2022 de Russische bezetting van Boetsja meegemaakt en is daarna gaan studeren in Leiden.

An impressive 1,300 international students from 84 different nations got to know each other at the University in Orientation Week Leiden. Where do they come from and why did they choose Leiden?

Fishing a bike out of the frozen canal, stunningsunsets over Leiden and four plants that flowered for the first time in sixty years in the Hortus Botanicus: this was our year in nine Facebook posts!

Thanks to a clever research method, progress is being made in the quest for better tuberculosis medications. Within an American consortium that received a 30 million dollars grant, Leiden researcher Rob van Wijk plays a significant role. ‘The next breakthrough in tuberculosis research will come much…

Quick resuscitation can save lives, but under 1% of the population of Leiden is a community first responder. Student associations and various partners in Leiden want to give a resuscitation course to 500 residents and students of Leiden. This special project has won the LUF’s Snouck Hurgronje Prize.

Studying abroad is about more than just your study programme. Laura Noordermeer is on an exchange in Seoul, South Korea, where she was lucky enough to see Suzanne Schulting win the very first gold medal for the Netherlands in the short track.

Leiden University announced on 19 March 2020 that there would be no more face-to-face teaching for the rest of this academic year. That was a big decision with big consequences, but students in Leiden are staying positive and trying to make the best of it. Read on to be inspired by how Leiden students…

Tracking early human behaviour through plant processing and -exploitation.

In this project, we will study the genetic and environmental drivers of woodiness and stem lignification at the level of plant‐to‐gene‐to‐molecule.

Over the past century, the world population has grown exponentially, as has our need for energy and raw materials. If we wish to continue to live prosperously in the future, we have to radically restructure our economy and consumption. Scientific research shows us how to do this.

‘Tell me something I don’t know,’ said skating coach Jac Orie to Leiden data scientist Arno Knobbe. And he did. Knobbe and his colleagues now assist athletes in all kinds of ways with the help of data mining.

Through metabolism, biochemical processes give rise to the complexity of life. Acquired and inborn errors in metabolism underlie many diseases occurring in man. The challenge for present day medical biochemistry is to find, and integrate, pieces of information at molecular, cell and organismal level…

The goal of hit and lead optimization is to optimize suitable chemical starting points that can modulate a drug target. The methods and technologies used are similar to those in Hit Discovery, but once the compound has shown activity in an animal model, it moves from 'hit' to 'lead.'

A neural network mimics how our brain works. Evolutionary algorithms use the principle of natural selection to solve complex problems. This kind of 'natural computing' is being used to improve the diagnosis of Parkinson's disease or the production of steel.

In his dissertation Gabriel Paiuk explores the variable ways in which what is heard is formed. To address this, he postulates a novel concept of sound image in a post-anthropocentric context in which both mind and material artefacts are instances across which the image occurs, rather than hosts on which…

Leiden has much to celebrate: first, 450 years of the Relief of Leiden and then 450 years of Leiden University. And that is no coincidence.

An overview of the research at the Cancer Dug Target Discovery group.

1) How natural cycles and activities are interconnected for building the time in one community? 2) What perceptions of Ñuu Dzaui peoples about their landscape can be connected with precolonial times?

This is an Erasmus+ International Credit Mobility project of Leiden Law School with Shandong University in Qingdao.

The Research Group 'Violence and Violence Prevention' studies interpersonal violence. We seek to better understand the dynamics underlying interpersonal conflict.

Here you'll find selected publications and media attention from our group.

Terrorism experts Daan Weggemans (Leiden University) and Beatrice de Graaf (Utrecht University) conducted one of the first scientific studies on the societal reintegration of jihadist former detainees. They showed that the reintegration process isn't without problems. Their conlusions are presented…

The majority of scientists, from archaeologists through to zoologists, collect huge volumes of data. Their massive databases contain large amounts of information which is difficult for humans to filter. With a solid grounding in statistics, we can develop algorithms for analysing and identifying patterns…

AI-tools are introduced within our infrastructure, work, communication, interpersonal relations, economy, democracy, health, science etcetera, to overcome limitations and/or increase efficiency, speed, reliability, convenience. Given the impacts across society, AI requires broad action and reflection…

We depend on nature for so many things: from clean water, wood and food to carbon absorption, water purification and coastal protection, as well as for relaxation, inspiration and identity. Nevertheless, our modern world putting increasing pressure on these ecosystem services. Leiden researchers investigate…

Leiden University's interdisciplinary research programme SAILS funds young interdisciplinary scientists working at the intersection of AI and other fields. How do these researchers experience the work?

What was the function of the Dutch Protestant Church in Sri Lankan society? Why did people relate to the Church and how did conversion influence their life course?

The main research theme in the group of Dennis Hetterscheid is to understand and mimic bioinorganic multi-electron processes that are relevant to our future energy infrastructure. Reduction of protons generates hydrogen that can be used as a chemical fuel. Alternatively to gaseous hydrogen, the reduction…

You will be advised by a PhD Advisory Committee (PAC) that is appointed especially for you. Typically the members of the PAC are: the LACDR Scientific Director, your promotor(s), if applicable, your co-promotor(s) and an external advisor.

On this page you find all the ways through which the Institute of Psychology aims to foster Open Science.

My ERC Starting Grant, funded with €1.5 million for 5 years as part of the Horizon 2020 research and innovation program, is focused on building the early warning system WARN-D to reliably forecast depression in young adults before it occurs. Why depression, and why prediction?

An overview of awards and prizes granted to our staff and students in 2022, as well as special appointments at Leiden University and other institutions.

Over the past century, the world population has grown exponentially, as has our need for energy and raw materials. If we wish to continue to live prosperously in the future, we have to radically restructure our economy and consumption. Scientific research shows us how to do this.

Since the late 1990s Leiden University has been located in two cities: Leiden and The Hague. Leiden is where the University was founded and still forms its heart, with six of the seven faculties being housed there. The faculty of Governance and Global Affairs is located in The Hague and most of the…

PhD defence

On 20 February 2018, Simone van der Hof will give a lecture on the use of AI in combating online sexual abuse of children at the Academy of European Law (ERA) in Trier during the seminar The Life Cycle or Electronic Evidence - Handling E-Evidence in Child Sex Abuse Material.