This project tries to explain the persistence of this cultural repertoire by zooming in on (1) interaction between idioms (cultural repertoires) available to scholars at certain points in time, (2) mechanisms that help transmit repertoires across time and place, and (3) rhetorical purposes for which…

Daniel Soliman defended his thesis on 15 September 2016.

Smart algorithms and powerful processors are just as essential for astronomy as big telescopes. Astronomers at Leiden University therefore constantly operate at the interface between astronomy and data science.

Making choices is part of life. You make larger or smaller choices in everything you do, and you progress from one choice/decision to the next. All decision-making processes involve three aspects: making a choice, experiencing that choice and reflecting on it.

In the specialisation Social and Organisational Psychology, part of the Master in Psychology, you study behaviour in formal and informal groups, such as sports or work teams.

Galaxies in the early universe are shrouded in a kind of mist: a cloud of hydrogen. With galaxies in the later universe this mist has disappeared. Astronomer Jorryt Matthee has made the first images of this dissipating mist. PhD defence 19 September.

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.

‘Over leven in Aarlanderveen’ , the film that Master's student Marleen Oostenrijk made for her graduation project of Cultural Anthropology and Development Sociology, will be screened 22-28 February at the local television station Studio Alphen. The film portrays the liveability of the village Aarlanderveen…

Although seen as the fastest and cheapest way to global climate protection, a uniform global carbon price would have major consequences for the economic competitiveness of countries. Hauke Ward, who recently joined Leiden University, showed in the journal Energy Economics that modern western countries…

Are you interested in Leiden University College The Hague, but unable to travel to our experience day on 16 February? Not to worry! We will offer this event in hybrid format. On this page, you can tune in to the information sessions taking place in our building on February 16th. When the date gets closer,…

Are you interested in Leiden University College The Hague, but unable to travel to our experience day on 16 February? Not to worry! We will offer this event in hybrid format. On this page, you can tune in to the information sessions taking place in our building on February 16th. When the date gets closer,…

After graduation you have a lot of opportunities: the field of science communication is very broad. You can also aim for a career in industry or research.

You can make some astounding images using just a box with a hole. Inspired by the celebration of Leiden as the European City of Science, Professor Matthew Kenworthy left several pinhole cameras across the Observatory over the course of 2021. This is how the simplest devices may uncover the greatest…

Only one in five young people with emotional health problems such as an anxiety disorder receives appropriate professional help. GPs often fail to properly recognise the signals in children and young people, according to psychologist Semiha Aydin. How can we improve this? PhD defence 23 February.

'Writing is not science, but art,' Lucas van Osenbruggen says. Last semester, he attended the Honours Class 'Creative Writing'. Together with his teacher Pauline Slot, he looks back on a course that is 'really different'.

Three Leiden professors have recently been awarded the most prestigious scientific accolade in the Netherlands: Maria Yazdanbakhsh and Marc Koper have been awarded a Spinoza Prize and Judi Mesman a Stevin Prize. They received their prizes on 13 October.

Is the General Data Protection Regulation (GDPR) adequate in ensuring responsible innovation using data analytics? What is the role of ethics with regard to placing limits on technological developments? Does innovation drive business and industry transformations, or does shareholder value maximization…

Last year he became Teacher of the Year because of his innovative and online teaching, now Alexander van Oudenhoven has to change course again and teach physically. What have the first weeks been like for him? ‘Let's apply what we learned in the lockdown period.’

Marco van Eijk is the new Educational Director of the Bachelor's Life Science and Technology (LST). Since 1 September he has been responsible for ensuring the quality of the programme. ‘LST is a unique programme and everyone has to keep working hard for that. That is my main task.’

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.

How safe are the nanoparticles in transparent sunscreen, anti-odour socks and bacteria-resistant plasters? Although microbes are present on all organisms, the tools that estimate the safety of nanomaterials still hardly take them into account. Bregje Brinkmann explored the role of these microbes during…

For her research, PhD candidate Liselore Tissen put one famous painting after another through a 3D scanner. The resulting reproductions were indistinguishable from the originals. But what does this mean for our interpretation of art?

A new bill is currently under debate in the Netherlands, advocating raising the prison sentence for manslaughter from 15 to 25 years. ‘This very serious crime (...) evokes feelings of disgust and insecurity in society’, Dutch Minister for Justice and Security Grapperhaus comments on the sentence that…

Getting to know all his colleagues as fast as possible, and learning about the faculty’s strengths: these will be Jasper Knoester’s first challenges. Jasper became the new Dean of the Faculty of Science on 1 January, and he is optimistic about the corona restrictions. ‘Obviously, this isn’t the start…

A global synthesis of the extent, diversity and patterns in off-site fire use by historically documented and current hunter-gatherers with the remit of this study in the deeper past.

Career and apply for jobs

‘It was the biggest bunch of flowers I’d ever seen,’ says Emily Strange about the moment she won the Leiden Teaching Prize 2022. The judge praised the conservation biologist for her passion, engaging personality, and the way she motivates her students. On the Dutch Day of the Teacher, we get to know…

A new plant species was named after Paul Kessler, prefect of the Leiden Hortus botanicus. Kessler discovered the small tree, which is related to the kiwifruit, himself.

Hans Slabbekoorn, researcher at the Institute of Biology Leiden, is one of the editors of the latest volume of the Springer Handbook of Auditory Research (SHAR). This book is filled with everything known about the effects of sound on vertebrates. Slabbekoorn’s contribution to the book as a co-author…

Rotterdam is one of the cities participating to the Edible Cities Network (EdiCitiNet), an international cooperation of municipalities that aim to increase the ‘edibility’ of urban spaces. In this blog, Vincent will describe his experiences at one of their recent workshops.

Four thousand visitors immersed themselves in art and science during Leiden's Night of Art and Science on 17 September. They could choose from dozens of lectures, experiments, interactive events and a lot of art.

Immigration and naturalisation policies are an important theme in the upcoming Dutch elections. The Netherlands should be mindful of its immigration narrative, says PhD candidate Hannah Bliersbach, as this greatly influences the relationship between ‘new’ citizens and their new home country.

The intake of bachelor’s students from classic immigration countries whose prior education was in the Netherlands does not reflect the growing diversity in society. This is according to data from Statistics Netherlands.

Tremendous amounts of data are generated in scientific research each day. Most of this data has more potential than we are using now, says Katy Wolstencroft, assistant professor in bioinformatics and computer science. We just need to integrate and manage it better.

Herta Mohr was a promising Egyptologist who died in Bergen-Belsen. Lawyer Amandus Wolfsbergen died in Auschwitz, without knowing that the his work would continue to be a respected authority for many years. Thanks to research by PhD candidate Adriënne Baars, some more personal information has been added…

Psychologist Floor van Meer won the first Trial & Error Award for her research on the effect of being distracted while eating on eating behavior. This award from the Journal of Trial & Error (JOTE) honors the often underappreciated aspect of research: learning from errors. For her publication, Van Meer…

What does a 19th-century exhibition of traditional utensils from the province of Zeeland tell us about the current rise of populism? A lot, Ad Maas will say in his inaugural lecture.

Currently, Navigation Lab Leiden works on three main themes: navigation ability, spatial abilities, novel techniques in neuropsychology.

What is the history of the humanities? What does this new field look like? How does it relate to the history of science or to the history of individual disciplines (linguistics, history, media studies)? And how can you participate?

Study information, Online Experience

On September 1 2017, Marlou Grobben ends her term as assessor of the faculty board of the Faculty of Governance and Global Affairs. After a two- year period, having represented the student- interests within the faculty board, the position is transferred to Esmee Braam.

European policy affects our lives: from air quality to the frequency of a bus service. Leiden researchers analyse how the European Union functions, how countries apply European policy and whether this policy actually provides solutions and delivers.

For the first time ever, Leiden biologists have found that the ‘nose’ of spirochetes – worm-shaped bacteria – have a two-fold symmetry. A remarkable discovery, as the ‘nose’ of every other bacterium has been found to have a six-fold symmetry. First author Alise Muok wrote a popular blog about the findings…

The year 2020 should finally be Brexit year. The United Kingdom is set to leave the European Union on 31 January, at midnight Dutch time. Legal scholar Joris Larik from Leiden University College The Hague explains why he is not advocating remain.

Alireza Nouri comes from Tehran, Iran, and is currently in his third year of the bachelor’s in International Studies at Campus the Hague.

Would you like to do something for the victims of the war in Ukraine? Several actions have been set up to help the people in Ukraine. Read below what you can do.

The advent of script has never managed to eliminate the use of symbols. This is the finding of research carried out by Kyra van der Moezel on Ancient Egyptian identity marks. PhD defence 7 September.

The proceeds of the Leiden University Science Run on 28 September will go to Scholars at Risk, a section of the UAF that assists refugee scholars. One such scholar is Leiden PhD candidate Lety Elvir Lazo from Honduras.

Taking part in TikTok challenges, online gambling, and forwarding nudes. ‘Why do adolescents take online risks?’, psychologist Neeltje Blankenstein wonders. Her research on online risk taking has been awarded a Veni grant by the Netherlands Research Council (NWO). Read her answers to five questions.

After months of preparation, the moment of truth had arrived: would the skies above Leiden clear for the promised glitzy planet-and-star show? The people of Leiden turned out in their hundreds to go star-hunting on 25 September. They became more aware than ever of the effects of light pollution.