The expansion of European powers overseas brought Europeans into contact and conflict with the inhabitants of Africa, Asia, and the Americas. Historians of colonialism and post-colonial scholars have long argued that this encounter was crucial for the formation of European identity, which originated…

Are maps objective or do they convey hidden messages that you would miss at first glance? A map is always a simplification of reality. Mapmakers reduce, distort and select. This allows the reader to be guided literally and figuratively. Leiden University Libraries (UBL) and the Museum Volkenkunde jointly…

In our digital society, the internet seems to offer endless possibilities for expressing yourself, gathering information, and making contact with others. The anonymity of the internet seems to give us the freedom to come and go as we please. But what about our online privacy? Should it be dealt with…

Piercing through the skull with an ice pick, administering electric shocks without an anaesthetic, or applying leeches to the uterus: these may seem like medieval methods of torture, but they are in fact therapies used in medicine. Willem van der Does writes about all of them in his new book. ‘Physicians…

The International Resource Panel of the United Nations Environment Programme, with CML researcher Ester van der Voet as member, has prepared a report called Global Resources Outlook 2019: Natural Resources for the Future We Want. It examines the trends in natural resources and their corresponding consumption…

As part of the career orientation of the Master’s Vitality and Ageing, students visit various healthcare, policy and research organisations throughout the year. Students get introduced to relevant organisations where they have the possibility for a graduation internship and career opportunities. This…

Beatrice Penati is Assistant Professor of History at Nazarbayev University (Astana, Kazakhstan). Dr Penati will deliver a guest lecture on Monday, 10 October and a masterclass on Thursday, 13 October within the Central Asia Initiative at Leiden University.

The earlier you introduce children to a language, the sooner they can be captivated by it and see that there is more than just Dutch and English. That is the basis for the language lessons for primary education that Alisa van de Haar, university lecturer of French, collaborated on. ‘Deans from different…

Bioenergy with carbon capture and storage (BECCS) is a promising method for removing carbon dioxide (CO2) from the atmosphere and simultaneously generating energy. Yet this method is controversial, as it may require a great deal of land and water. Researchers at Leiden University have now proposed a…

Leiden University has had a diversity policy since 2014. The aim is to create a diverse and inclusive learning and working environment for all students and staff. Diversity Officer Aya Ezawa updates us on the process and the results. It’s now 2022, what has already changed?

Philosophical pragmatism has found more and more applications. But thus far it has not been applied to political crisis management. Political scientist Martin Bartenberger linked these two together and discovered that pragmatism, or the lack thereof, can help to explain how governments and public agencies…

Sensational, is how Leiden Egyptologist Olaf Kaper described the discovery of two new chambers in the tomb of pharaoh Tutankhamun. He hopes that a second set of scans will confirm their presence unequivocally.

Software development is probably not the first thing that comes to mind when you think of a sociologist. Three years ago, John Boy began developing his software package Textnets. Because of Corona, he was less able to concentrate on writing scientific research and also setting up the online courses…

Conference, Workshop

Public Administration student Iris did an internship at the Ministry of the Interior and Kingdom Relations. During her internship, she dealt with election accessibility.

I think we should go this way. This way! THIS! WAY!! Making yourself heard in a city can be difficult. That is not only the case for humans, but birds seem to be hindered by urban noise as well. Researcher Hans Slabbekoorn of Leiden University already showed that great tits in Leiden communicate differently…

A piece of corrugated rubber can function as a simple computer, displaying memory and displaying the ability to count to two. Leiden physicists describe the computing rubber in the journal PNAS. ‘Simple materials can process information, and we want to find the principles behind that.’

Medicines can work even if they have no active ingredient. The first international scientific conference on placebos will take place in Leiden from 2 to 4 April. Placebo researcher Andrea Evers, who is also chairing the conference, answers some pressing questions.

On 14 and 15 March, students can register as candidates for a place in the University Council (UR) or one of the faculty councils. But what do these participation bodies do? UR member Femke van der Meulen takes us through the agenda for the next meeting.

PhD student Sung-Shik Jongmans of Leiden University and Centrum Wiskunde & Informatica investigated a new programming method to simplify this. On 3 March 2016, he graduated with the exceptional predicate 'cum laude' on his dissertation 'Automata-Theoretic Protocol Programming'. His results are interesting…

Dr Erik Kwakkel, Leiden specialist on medieval manuscripts, has one foot in the world of medieval book production and the other firmly planted in the modern environment of social media. He is co-editor of Author, Reader, Book aimed at specialists in medieval authorship, and tweets daily to bring the…

Marije Groos was a PhD researcher at the LUCAS. She completed her thesis on socio-political engagement in Dutch literary periodicals of the fifties. Her promoters are Yra van Dijk, professor of Modern Dutch Literature, and Ton Anbeek, emeritus professor of Modern Dutch Literature.

This summer, PhD students Marta Maggioni and Rosa Winter went to Africa. Not just to enjoy the beautiful continent, but also to stir up the enthusiasm of young students for mathematics. They volunteered at math camps in Kenya and Ghana. ‘I think it is important they experience the fun of maths.’

An international team of researchers observed the full extent of the evolution of hot gas produced by an active black hole for the first time. As it evolves, the hot gas encompasses a much larger area than previously thought and even impacts objects residing at great distances. Their study is published…

In a recent mega-analysis, researchers from Leiden University aimed to clarify the contradictory findings of research into social anxiety disorder. They found that to obtain reliable research results having the largest possible sample size is important. Publication in NeuroImage:Clinical.

Changes to halt further biodiversity loss are more urgent than ever and feasible, says IPBES, the United Nations biodiversity panel. In two reports released this week, the panel calls on governments worldwide to develop coherent policies that address biodiversity, climate change, water, food and health.…

Adrian Hamers is researching the way in which celestial bodies orbit each other, now and in the future. This often turns out to be more erratic than you might think. He will defend his PhD dissertation on 21 June.

An international team of astronomers, including Professor Koen Kuijken, has published a series of online articles presenting the first results of a major search for dark matter. Never before have researchers been able to chart so precisely the characteristics of groups of galaxies and their dark matter.…

Each month we will be spotlighting material we have been reading, or that have been recommended to us that relate to AI and a particular theme.

To what extent is the image of the Taino settlements on Hispaniola representative for the whole island, or is it only related to a few large settlements of known caciques?

As an international employee at Leiden University, it can be hard to settle into the workplace, the city, or generally, the Netherlands. The Leiden International Centre can help international employees land comfortably and make living abroad just a little bit easier. Jenny Willcock, coordinator at the…

Ecologist Sebastiaan Grosscurt became a successful wildlife journalist after graduating. But he decided to focus on science instead. He started his PhD research this year on the cumulative effect of light and noise pollution on animal behaviour.

New research published in the Journal of Leukocyte Biology suggests that these changes to the behavior of the immune system are persistent and can continue even after diet is improvedAlmost everyone knows that improving your eating habits will most likely improve your health. What most people may not…

Two Leiden students stand a chance of winning the ECHO Award for Higher Education. Deniz Rana Kuseyri (Rana for short) and Ruşen Koç are two of the six finalists for this annual national prize that is awarded to students who promote diversity and inclusion in their own discipline.

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.

To generate renewable energy takes more space than one might think. New research by environmental scientist Paul Behrens and master's student John van Zalk shows how much space is needed for nine specific types of energy. Biomass, hydro and wind, while vital, take up the most space. Natural gas and…

The brand-new American President Donald Trump delivered his inaugural speech on 20 January. There was little sign of conciliation and he was liberal with the truth, in the opinion of a number of Leiden academics. One professor is more positive: 'He wants to take on radical Islam.'

Purple clothing and a pride flag flying from all University buildings: Leiden University is once again taking part in Purple Friday. How do people experience this day? We asked some employees and students of the Faculty of Humanities.

Are you a great photographer? Or not at all, but you do have a brilliant photo that captures the relationship between food and people? Join the photo contest ‘Food & Society’ of our Faculty and send in your best photo before 3 April 2018!

They never cross our minds until, that is, they become damaged and then they’re a huge problem: our sewers. Their maintenance could be much faster and more accurate, PhD candidate Dirk Meijer has discovered. Algorithms are also proving to be a godsend deep underground.

On 25 February more than 6,500 prospective students will visit the Open Day to learn more about programmes in Leiden and The Hague and to get a taste of student life. Have you signed up yet? Five golden tips to make your Open Day a success.

Vincent Bakker has won the 2017 Thesis Prize of the research master’s programme Political Science and Public Administration. His study of labour market effects of social investment policies is the crowning achievement of Bakker’s work as a MSc student. It also marks the start of his academic career.…

It is one of the greatest archaeological mysteries of all times: the disappearance of a Persian army of 50,000 men in the Egyptian desert around 524 BC. Leiden Professor Olaf Kaper unearthed a cover-up affair and solved the riddle.

Festival, Science festival

On 16 September, the Rapenburg canal will be the setting for the Night of Art & Sciences. There will be plenty of things to do, including for international students and staff. We have selected four great acts in advance.

Like many others, Ruurd Halbertsma has had a rollercoaster of a year. His museum, the National Museum of Antiquities (RMO), was closed for a long while because of the lockdown. Visitor numbers picked up again from September, but it the next few weeks will be tense now the hospitals are full again. Halbertsma:…

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.

‘The system is failing’, ‘the goals are only being achieved to a limited extent’, ‘we’re letting children down’. These are some of the newspaper headlines that followed the publication of a report by researchers from Leiden University in September. Commissioned by the Dutch Research and Documentation…

On 17 September, the Faculty of Governance and Global Affairs (FGGA) took part in the festivities surrounding The Hague's largest annual event: 'Prinsjesdag' (Prince's Day). Prinsjesdag is traditionally celebrated on the third Tuesday of September. On this day, King Willem-Alexander reads out the 'Troonrede'…