On 10 April, the Faculty of Archaeology will host the Symposium of Young Archaeologists (SOYA), a fully student organised conference dedicated to the theme Archaeology of the Margins.

In cities, parks take the blame for mosquito problems. However, the real issue is usually a few streets away. Drains and standing rainwater create ideal breeding grounds for larvae. As a result, controlling adult mosquitoes in parks makes little sense, says environmental scientist Louie Krol in his…

Pim Overgaauw, Director of Operations of the Mathematical Institute at Leiden University, is an avid bird watcher and photographer.

What if you could watch a single cell eat in real time? This could answer questions about diseases such as cancer. PhD candidate Yixuan Wang has developed a glowing chemical tool that makes this possible, revealing how living cells take in nutrients.

Violence such as assault or head-butting causes pain, shock and distress. It is often seen as savage or senseless. But for those who commit it, violence has meaning, argues violence researcher Don Weenink in his inaugural lecture.

Bart Barendregt receives a Vici grant of 1.5 million euros from the NWO for his research project 'One between the Zeros, an Anthropology of Artificial Intelligence in Islam'.

Quantum technology has the potential to transform society. But how can you effectively inform the public about such complex and enigmatic science and technology? PhD candidate Aletta Meinsma explored this.

Study information

Caribbean literature holds a unique position in the world. Literature produced in the Caribbean region is extremely diverse, not only because of the wide variety of languages spoken, but also due to distinct colonial legacies that exist in the archipelago. Despite cultural specificities, the region…

Many an archaeologist, at some point in their career, is asked what type of dinosaur they discovered. Instead of once again patiently explaining that we do not do dinosaurs, the Faculty Board has now decided to listen to society’s call. ‘It is clear that the general public feels that dinosaurs are relevant…

Lecture, MI 70 years

The rise of authoritarianism, the strengthening of the radical right, and the role of the EU in defending democracy—these are just a few of the issues causing concern today. Is the EU capable of defending democratic values within the Union and beyond its borders? In an interview from the Lithuanian…

Arts and culture

Middle East Studies Lecture

Didactics, Research, ICT

Lecture, Leiden University Nationalism Network

After ten years and one day, Leiden Observatory has a new director. As of 1 September, Ignas Snellen will set the course for the astronomical institute. In this interview, you will get to know Ignas. Or at least a little. That is why we gave him five dilemmas and asked the people around him who he really…

Pita Limjaroenrat (45) was set to become Thailand’s next prime minister, but in 2024 the Thai Constitutional Court dissolved his progressive Move Forward Party and banned him from politics. He now reflects publicly on the policy values that brought the party to prominence.

Should we cut our ties with Israel or maintain them? The event ‘A university conversation on Israel/Palestine’ on 1 July revealed the depth of feeling about the conflict, with students and staff grappling with academic values and moral dilemmas.

Europe’s security suddenly looks uncertain now President Trump has started negotiations with Putin. What does this mean for the Netherlands? What do we need to do?

Bruno Allahissem and Luca Bruls recently joined the Institute for History as PhD candidates in the NWO-funded project 'Digital warfare in the Sahel: popular networks of war and Cultural Violence', led by Mirjam de Bruijn and Jelena Prokic (LUCL). Below they introduce themselves.

Ustadh Mau Digital Archive project (UMADA) is among the UCLA Library 29 international cultural preservation projects supported by the Modern Endagered Archive Program (Cohort 3). From the 3rd up to the 5th of October, a digitization training workshop took place on Lamu island, on the so-called northern…

From time to time, manuscripts that have remained hidden for centuries turn up in library collections and archives. In the archives of the 17th-century Bibliotheca Thysiana at the Rapenburg in Leiden, kept in the Leiden University Library, Rotterdam researcher Erik-Jan Bos discovered a hitherto unknown…

Tahir Abbas, Professor of Radicalisation Studies at the Institute of Security and Global Affairs, is organising a book launch for his new book: 'Ruminations: Framing a sense of self and coming to terms with the other'. The book launch will take place on Thursday 15 December from 16.00-17.00 hrs. at…

After a long period of isolation under pandemic, the PhD candidates of the Institute of Cultural Anthropology and Development Sociology seized the opportunity to organize an in-person, on-site event: the CADS PhD Conference for 2021. With the theme "Young Scholars at the Intersection of Uncertainty,…

Under extreme pressure and in agreement with the Faculty Board, the programme chairs, represented by a core group, have worked over recent weeks on additional recommendations based on the Perspective 2028 plan. On 1 December they presented their Alternative Perspective 2028 to the Faculty Board. The…

Een mijlpaal voor de Class of 2025 van de MSc International Relations and Diplomacy: een prestigieuze en internationale opleiding gevierd in Den Haag en Leiden.

With the introduction of PLAN in education, the Institute of Psychology is taking an important step forward. The complex project has been carefully executed and the system fully set up. It offers teachers advantages such as ease of use and transparency. Zsuzsika Sjoerds did a pilot and tested it.

Hanneke Hulst has held the new Leiden chair in Neuropsychology in Health and Disease since 1 September. From 1 January she will also be chair of the Health, Medical and Neuropsychology (HMN) unit. ‘HMN is my new base. I’m curious to find out about the people who work here, what they do and what motivates…

Hak, lawyer, international imagery law lecturer, and adjunct associate professor, talks about his PhD research on the use of images in international criminal prosecutions. He was a public prosecutor in Canada for over 30 years and dealt primarily with the prosecution of homicides and other major cri…

Stack two layers of graphene, twisted at slightly different angles to each other, and the material spontaneously becomes a superconductor. Science still can't explain how something so magical can happen, but physicists use special equipment to reveal what is taking place under the surface.

Sexual harassment was the theme of the recent annual symposium of student ambassadors to the Leiden-Bollenstreek police in collaboration with the police and the municipality. An extremely important issue to students − if the 100 places being claimed as soon as the symposium was announced was anything…

How do we navigate the continuously developing landscape in research integrity, ethics, and open science? Anna van 't Veer and Eiko Fried discuss the underlying principles and values of science with all psychology units in their Responsible Scholarship workshop.

What sets Leiden University apart from other universities? And what research themes would you like us to showcase to the outside world? Share your ideas in our online consultation over the next two weeks.

Caroline Schep and Bianca Angelien Claveria recently joined the Institute for History as PhD candidates in the ERC-funded project “Human Subject Research and Medical Ethics in Colonial Southeast Asia”, led by Fenneke Sysling. Below they introduce themselves.

Using enslaved people as servants, becoming an administrator in the Dutch West India Company or making uniforms for the colonial army. Many people from Leiden played a role in colonialism and slavery. Historians are conducting preliminary research and finding striking examples.

Social media gives people a voice but also fuels online hate, especially against marginalised groups. PhD candidate Eva Nave: ‘While end-to-end encryption protects activists, it also enables criminal activity, creating a more accessible version of the Darkweb.’

Guus Heerma van Voss, professor emeritus of labour law, delivered his farewell lecture on 18 October and held a mirror up to his colleagues and himself. Had they done enough to ensure the welfare state keeps up with the times? ‘Did we just stand by and watch?’

Paul Wouters came to the Faculty of Science for a few months to help with organising day-to-day issues after the previous dean left. This has involved rather more than he expected. ‘I can now really understand why every faculty has its own dean.’

Leiden students working to solve a sustainability problem at the request of an external party: that is the Sustainability Challenge. During a recent symposium, 28 groups of four to five students unveiled their solutions. The commisioners expressed great enthusiasm.

The new Executive Board of the Institute of Psychology became effective on 1 February 2022. Scientific director Andrea Evers tells us where she gets her energy from.

Leiden University’s Committee on External Collaborations – Human Rights and Conflict Zones advises the Executive Board to suspend student exchange programmes with Hebrew University of Jerusalem and Tel Aviv University until further notice.

Tuesday 7 June saw the finalisation of the new Faculty Strategic Plan 2022 – 2027 by the Faculty Board. A PDF of the Faculty Strategic Plan (FSP) will be available in Dutch and English for the faculty community in July. A number of members of the FSP Steering Committee look back on a far-reaching and…

Dear colleagues and students,

Palestinian national Abu Zubaydah was captured by the CIA in March 2002 and has remained in detention ever since, without any form of trial. Leiden professor Helen Duffy is doing all she can to secure his release or a fair trial. Her hopes now lie on international pressure and the UN Working Group on…

An international research team is to search for invisible life in the Galápagos Islands. The diversity of bacteria and other microscopic organisms may not be evident to the naked eye, but it is essential to nature. To the islands' giant daisies, for instance: unique endemic plants that are currently…

The Academy of Creative and Performing Arts (ACPA) recently appointed a new academic director. Erik Viskil is taking over from Henk Borgdorff, who held the post for the past four years. What has been achieved in those years? And what does ACPA’s future look like? In this double interview we discuss…

Ten scientists from Leiden University will receive a Starting Grant from the European Research Council. This will allow them to launch their own project, form their own research team and implement their best ideas.

LUNHA strives to redefine global health by prioritizing justice, fairness, and inclusion in Africa. Through collaboration with diverse stakeholders, LUNHA aims to reshape global health research and foster a broader engagement with social sciences and humanities.

From the Spanish Flu during WWI to COVID-19: the role of the American government in these Pandemics. Professor Giles Scott-Smith, who together with Dario Fazzi and Gaetano Di Tommaso completed the book project Public Health and the American State, discusses a century of American responses to health…