On Thursday, 11 May 2017, Nobuo Hayashi will defend his PhD dissertation entitled “Military Necessity” at Leiden University’s Academy Building (Rapenburg 73). He will argue that military necessity denotes normative indifference in international law.

Brexit has been a kind of shock therapy for the EU and has eventually led to more appreciation for European cooperation. That is what Professor Luuk van Middelaar claimed on 30 November at the conference ‘Brexit and the future of the European Union’ which marked the 60th anniversary of the Europa Institute…

Recent study led at the Leiden Observatory has observed Orion with unprecedented detail. New data from the Atacama Large Millimeter/submillimeter Array (ALMA) and other telescopes have been used to create this stunning image showing a web of filaments in the Orion Nebula. These features appear red-hot…

Plants are able to resist a pathogen’s attack by a dual innate immune system. The relationship between the two pathways was not clear, but it turns out that they mutually potentiate each other, as assistant professor Pingtao Ding (Institute of Biology Leiden) and colleagues (The Sainsbury Laboratory,…

Rector Magnificus Carel Stolker was presented with a 'Diamond' on 8 June in recognition of Leiden University's role as a 'shining example' of male/female diversity. 'It's a question of determination,' says Stolker, 'and that gets results. For example, we are appointing an increasing number of female…

Health psychologist Aleksandrina Skvortsova has made clever use of the Pavlov effect to link the ‘cuddle’ hormone oxytocin with the placebo effect. This effect can alter the level of oxytocin in the body, making it possible for people to reduce the amount of medicine they need while still feeling good.…

At the end of December, the concluding lecture of the Bachelor Honours Class 'Policy and Politics: struggling to combat social inequalities' took place. Students, under the guidance of former minister Jet Bussemaker, tackled the question of what inequality actually is.

Together with a large international team of scientists, researchers Peter van Bodegom and Nadia Soudzilovskaia of the Leiden Institute of Environmental Sciences (CML) have created maps of variability in plant trait distribution across the globe. The new maps have been published in Proceedings of the…

Face masks and gloves designed to protect us are, in fact, dangerous for the animals around us. Scientists from Leiden warn that throughout the world, on land and in the water, animals are ingesting corona waste, or getting entangled in it. The two biologists are asking for everybody’s help to better…

Linguist Wataru Uegaki received an NWO Grant of 58400 Euro for his research project 'In search of semantic universals in the modal domain'. With this money Wataru can compile a database and organise workshops. An interview with Wataru:

Physicists, including Leiden researcher, Sanli Faes, have devised a new technique for studying processes at microscale rapidly and extremely precisely. This new method will make it easier to develop antiviral medication. And it doesn’t stop there. Publication in ACS Nano.

This week Dr. Lara Weiss (of the National Museum of Antiquities in Leiden), who together with Dr Christian Greco (of the Museo Egizio in Turin) heads the project "The Walking Dead: The Making of a Cultural Geography in Saqqara", was visited by the NVIC team. During the visit she introduced them to the…

Light reflects from a mirror, but where exactly does this reflection happen? Well, it depends, Martin van Exter and Corné Koks discovered. Their precise calculations, published in Optics Express, are important for designing optical cavities for quantum communication.

Microscopic swimmers such as bacteria do not always swim alone. There are advantages to exchanging information and cooperating. Stefania Ketzetzi and colleagues now show in Nature Communications that human-made microswimmers, too, can cooperate.

Carolien Stolte has received an Early Career Award from the Royal Netherlands Academy of Arts and Sciences (KNAW). She received this award for her research into the role of informal Afro-Asian networks in the Cold War. For this innovative research she received the award, an amount of 15,000 euros, and…

There seem to be genes that influence how our brains develop over time. A large international consortium has discovered this with an extensive study. The results of the study were recently published in Nature Neuroscience.

A suitcase as a messenger of quantum science. That is the idea behind QuanTour, a project connecting researchers from 12 European universities. In December, the suitcase landed in Leiden. A month later, it is time to pass the baton to Copenhagen. But what happened to it in Leiden?

Under a sunny sky 44 teams completed the Leiden Science Run this weekend. They raised as much as 3450 euros for refugee-students’ association UAF.

Improvisers in experimental music do not record their music in a conventional score, but in ever-changing 'tactile pathways'. This is the proposition put forward by researcher Christopher Williams. PhD defence 13 December.

At the end of May, the Leiden English Language and Culture Programme, formerly known as the Department of English Language and Literature, celebrated its 75th anniversary (starting from the appointment of the first professor of English Studies). Over 220 alumni, staff present and past, and students…

Synchronised heart rates and skin conductance tell us that people are attracted to each other. This explains why we feel a romantic ‘click’ with some people and not with others. This is the result of research by psychologist Eliska Prochazkova from the Leiden Institute for Brain and Recognition, which…

On 10 March 2017, Professor Karel Luyben (TU Delft) welcomed the ‘Metabolomics GO FAIR Implementation Network’ as community initiative to start the European Open Science Cloud. The network aims to implement the FAIR data principles in the field of metabolomics in Europe.

Michael Ignatieff, Canadian author, university professor and former politician, has been appointed Cleveringa Professor for the 2013-2014 academic year at Leiden University, the Netherlands. Professor Ignatieff will deliver the Cleveringa lecture on 26 November 2013.

Research on Asian plants is his life's work. Now a crown is added to that: a plant from the coffee family bearing his name. Paul Kessler is LUF professor of botanical gardens and botany of South East Asia and Scientific Director of the Hortus botanicus. 'Completely unexpectedly, you get to see the results…

How will future technological developments influence our everyday lives? This is the key question during the Brave New World symposium on 2 and 3 November.

A Leiden-Delft-Erasmus research team has been awarded a LDE Global Support Grant to develop reusable algorithms in the remote detection of non-orthogonal architectural features, taking place in the archaeological context of the northern extremities of the Andean, part of the Istmo-Colombian Area.

Two researchers at the Faculty of Archaeology have received a Veni award from the Netherlands Organisation for Academic Research (NWO). This award offers promising young researchers the opportunity to further develop their ideas for a period of three years.

PhD student and research journalist Sebastiaan Grosscurt won a Tegel in May. In the data category, Grosscurt and his colleagues won the prestigious Dutch journalism award. 'For me, ecological research and journalism are two ways of achieving the same thing.'

We are delighted to announce two new exciting research projects at the Grotius Centre for International Legal Studies! Dr Misha Plagis and Dr Hilde Woker have each received a starter grant for their collaborative research projects. Dr Hilde Woker and Dr Jason Rudall have received funding for their project…

Doğukan Yilmaz chose a study that aligned with his favourite subjects, and it paid off. For his bachelor thesis, he developed a new model to better predict an important chemical reaction. ‘On the edge of what is possible at the bachelor level,’ his supervisors write. Thanks to his impressive achievements,…

Since the beginning of September, urban criminologist Marianne Franken has been the linchpin of a special partnership between Leiden University, the municipality of Leiden and the police. As a PhD candidate she will spend four years conducting research into how safe the people of Leiden feel.

A consortium, led by Erik de Maaker (CADS, Leiden), has under the NWA scheme (Dutch National Science agenda) been awarded 98k€ for Localizing Global Garment Biographies, a two-year project to research the different ways by which users and producers attach value to garments.

It was a big surprise for the Bachelor's and Master's students of Public Administration, their graduation ceremony on 9 December. The inner garden of Wijnhaven had been transformed into a coronaproof winter fair with stalls, a sleigh and Christmas trees.

Wednesday the 23d of March, Olexander Horin, the ambassador of the Ukraine honoured us with a visit to discuss his vision on the referendum and the current political situation in Ukraine. Hereby a short summary of the lecture by Professor Madeleine Hosli, who attended the event.

The objectives of the 2011 campaign Tell Balata Archaeological Park are to carry out excavations, promotion and awareness, community involvement, gathering oral histories and educating children. The objectives are described in a handout produced for the opening ceremony on June 21st 2011.

Nietzsche may well have criticised Spinoza, but even so, the two philosophers had more in common than we might think, according to young Romanian philosopher Razvan Ioan. PhD defence 1 November.

On Thursday 3 November Leiden University will celebrate the official opening of two wall formulas in the city centre. As of now, Snell’s law and the Lorentz force formula shine on two walls in the heart of Leiden. They are part of a project to display at least ten groundbreaking formulas with a Leiden…

A rapid increase in the demand for construction sand is driving shortages and inequality around the world. Researchers from the Institute of Environmental Sciences at Leiden University have mapped the growing need for sand, as well as the bottlenecks and possible solutions. They have published their…

Researcher and lecturer Susana Valdez investigates how migrants make use of online translation technology in medical situations. Her research suggests that they often encounter obstacles when using machine translation in these settings. Potential problems include a lack of understanding or trust.

The world abounds with different footprints that calculate human impact on the environment. Environmental specialist Kai Fang is the first person to have developed a family of footprints that allow better measurement of environmental damage and the depletion of natural sources. PhD defence on 24 Nov…

We are pleased to invite abstracts for a conference on ‘Advancing Social, Economic, and Cultural Rights in a Polarised, Digitalised, and Unequal World’ to be held at Leiden University on 4 and 5 September 2025, in collaboration with Netherlands Network for Human Rights Researh (NNHRR).

Starting September 2022, Foteini Tsigoni is tasked by the Faculty of Archaeology to bring the different nationalities within the faculty community together. Herself an international student, she experienced culture shock wile adapting to the Dutch way of life, and is committed to help out new and current…

An endless stream of publications, data and software accessible to all? Professor of Science Studies Thed van Leeuwen calls for a more human-centred approach and an overhaul of the PhD system.

Winning a prestigious award for PhD researchers, even before you have your doctorate: that's what Yascha van den Berg managed to do with his research proposal on alternatively spliced tissue factor, a protein that may be involved in tumour growth. Van den Berg: ‘It all started as a Friday afternoon…

Most people would not even consider it, starting a PhD at the age of 62. However, for the former Teylers Museum curator Bert Sliggers it was like a dream that came true: ‘The opportunity I was given felt like a gift, it brought me and Teylers Museum a lot.’

De Universiteit Leiden is al 25 jaar stevig geworteld in Den Haag. Dat werd zichtbaar tijdens de feestelijke bijeenkomst rondom de foto-expositie Universiteit Leiden in Den Haag: Onderzoekers van de stad.

‘If it rains later, then I’ll take the car.’ In order to reason, we use sentences containing ‘if’ every single day. But how does that work exactly in the Dutch language? Alex Reuneker wrote his 628 page dissertation on the subject. Ceremony on 26 January.

New sampling and analytical strategies give archaeologists a better understanding of the nutrition and survival of ancient populations. Publication in PLOS One.

Antoaneta Dimitrova, Professor Comparative Governance, presented the Cleveringa Lecture at the Vaclav Havel Library in Prague last week. We spoke to her about her experience.

Some sectors have been hard hit by the pandemic, whereas others have grown. Yet there was no influx of workers from shrinking to growing sectors. This is the conclusion of research by economists from Leiden University. They published their results in the journal Economisch Statistische Berichten.