The last decades it is increasingly recognized that acute as well as chronic postoperative pain is an important problem. Treatment and prevention of postoperative pain is a challenge, especially in special patient populations where there is only limited guidance on how to optimally use opioids.

This Festschrift in honour of Cary J. Martin

If an algorithm has to learn to understand language, simply having a lot of data doesn’t help much. Like us, a computer has to learn the language in interaction with others. Tessa Verhoef is fascinated by how this interaction works.

Without scientific knowledge, we won’t be able to tackle the grand challenges of the 21st century: climate change, energy transition, social inequality and coronavirus, for example. Professor by Special Appointment of the Social Value of Science Laurens Hessels is therefore calling for more transdisciplinary…

Ten years later, a group of veterans still struggle daily with the effects of their deployment to Afghanistan. Sanne van der Wal, a PhD candidate at the Leiden University Medical Center (LUMC), conducted research into the effects of PTSD.

There are still things we can learn from the Ancient Greeks. How they managed to make sure that innovations were accepted, for example. A group of classics scholars, led by Leiden, will be carrying out research on this question funded by the largest ever NWO subsidy.

Masterclasses, network meetings and coaching cafés: the Alumni Office was offering a whole range of activities every month for the University’s alumni. Until coronavirus broke out, that is. The Leiden Alumni Webinars mean that alumni can still meet and share their knowledge with interesting speakers.…

Particularly during this time of social distancing and remote learning, it is important to carry on meeting new people – even if you don’t always feel like it after another day staring at your screen, says Wessel van Dam. In his role as assessor at the Honours Academy, Wessel represents the interests…

Four years ago, the Institute of Security and Global Affairs (ISGA) first started with an executive master’s programme called Cyber Security. The programme proved to be a huge success and has continued to develop. This academic year, Els de Busser was appointed as Educational Director and Chantal de…

International research agency Mercer has once again named the Dutch pension system the best in the world. Denmark comes second, and third place is for Australia.

Europe in lockdown: Member States acted on their own initiative to into lockdown, and all back to normal at the same time? It’s not that simple, and it doesn’t have to be.

What are the scenarios now the draft Brexit Agreement is on the table? And if the United Kingdom actually proceeds to leave the European Union, what is the time frame? Associate Professor of European Law Armin Cuyvers sheds light on the current state of affairs.

It is the dream of Professor Susana Chuva de Sousa Lopes to grow fertile egg cells in the lab. But she says there is a long way to go in her discipline until that is possible. This is the message of her inaugural lecture on 29 June 2020, the first digital inaugural lecture at Leiden University.

To support policies and decision-making on sustainability, it is important to involve citizens and stakeholders in the process. The term used for this in Public Administration is 'participation'. Professor Eefje Cuppen observes that things still often go wrong with participation. Inaugural lecture on…

Leiden University was present for the second time at the second Leiden Pride on Saturday.

A clear, unambiguous definition of an extraparliamentary cabinet still seems to be missing in the political arena of The Hague. Caroline van der Plas, Farmer–Citizen Movement (BBB) party leader, wants to discuss this issue with the party chairs of the Dutch coalition parties. Wim Voermans, Professor…

Native women are invisible in Mexican society. This is the conclusion Barbara Ortiz draws in her dissertation. PhD defence on 23 February.

If there’s one place at the University where it doesn’t matter where you come from, it’s De Kattekop. This, the University nursery, celebrates its 40th birthday in September. Its history reflects developments at the University. Parents are full of praise for it.

The oldest forms of literature and law originate from Mesopotamia (3000 BC until AD 70), as do important discoveries in science and technology. All these developments were recorded in cuneiform texts on clay tablets. There is still a lot to learn from the study of cuneiform texts, says Professor of…

Pieter Omtzigt, a strong contender in the polls for the Dutch general elections with his New Social Contract party (NSC), has said he would prefer to remain in parliament as party leader. He is not saying who the NSC candidate for prime minister might be and will only reveal this after the elections.…

A recent ruling by the Dutch Council of State indicates that asylum seekers may no longer be sent back to Italy. The Council of State increasingly concludes that the countries at Europe's southern and eastern external borders expose migrants to degrading treatment. This in particular is a reason for…

Leiden University's Pre-University College is celebrating its 20th anniversary. The programme introduced hundreds of secondary school pupils to science and the university. We asked those involved how PRE became so popular: ‘The students are the reason it still exists today.’

‘Criminal law is still an inequality machine’, argues Folkert Jensma in his fortnightly column for Dutch newspaper NRC. After attending the conference ‘Ongelijkheid en de Strafrechtpleging’ ('Inequality and the criminal justice system'), he concludes that ‘nothing has changed’ since his time as a st…

Hans Slabbekoorn is specialised in animal sounds. On 1 July, he was appointed professor of Acoustic ecology and behaviour. A great honour, according to the new professor. ‘This job never gets boring, whether I am investigating the urban jungle or marine noise.’

Over the past few hundreds of years, the world has changed radically. However, cultural stereotypes from the 17th century are still alive and well today, and even academic researchers sometimes use terms coined centuries ago. Why do they do that? Herman Paul, Professor of the History of the Humanities,…

An international team of astronomers including Leiden scientists publishes the image of a young star with a surrounding dust disk that is still being fed from its surroundings. The phenomenon around the star SU Aur may explain why so many exoplanets are not neatly aligned with their star. The European…

On Tuesday 24 April 2018, Nick Clegg, who served as Deputy Prime Minister of the United Kingdom, gave a guestlecture to first year students public administration about the profound dilemmas on Brexit. The lecture was part of a political science course within the Bachelor Public Administration of Leiden…

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.

Lichens enthusiast Sander van Zon was eager to use his knowledge for his internship. He wrote an excellent thesis on lichens’ biodiversity in the city, of which his first scientific publication will appear soon. With it, he is nominated for the Leiden Science Young Talent Award 2022.

What is the impact of religion and its discourse on the lives of queer people in countries where LGBTQIA+ individuals are not accepted? University Lecturer Eduardo Alves Vieira wants to know just that. With an NWO-grant, he will take a closer look at the inclusive religion movement in Brazil.

The fact that Tim Meijers ended up becoming a philosopher came as no surprise. Even as a child, the university lecturer endlessly asked questions to himself and others. Now that is his job at the Institute for Philosophy at Leiden University. Tim Meijers researches sustainability and justice between…

When alumnus Jonathan Katzman started his master's programme in Russian and Eurasian Studies, he didn't foresee how useful those skills would be in the near future. Now, he manages a refugee centre for Ukrainians who have fled their war-torn country.

Chances that Dutch Prime Minister Mark Rutte will become Secretary General of NATO are becoming increasingly likely now that the US and most western countries have expressed their support. The question now is how to appoint someone to the position of Prime Minister, who to appoint and when the situation…

Space travel has long since progressed from being just about rockets, travelling to the moon, and Russia and America. The Netherlands has its own Space Agency and one of its important tasks is collecting and making available increasingly advanced satellite data.

Reuse everything and stop producing waste. By 2050, the Netherlands should have a circular economy. However, the new Integral Circular Economy Report by the Netherlands Environmental Assessment Agency (PBL) shows that there is still a long way to go. For the report, the Institute of Environmental Sciences…

This semester archaeologist Dr Marike van Aerde teaches an Honours Course at the Faculty of Governance and Global Affairs in The Hague. “In the course, archaeology meets current issues.” For a course like this, the word interdisciplinary fits like a glove.

‘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…

How do we know what a quantum computer is good for when it hasn't been built yet? That's what PhD candidate Casper Gyurik investigated by combining two terms you often hear: quantum computing and machine learning.

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On this page you'll find the recordings of the programme presentations held at the Leiden University Bachelor's Online Open Day of 7 October 2023. Perhaps you joined this event and would like to rewatch the presentations or are curious about ones you didn’t see the first time around. Or you haven't…

A couple of years ago, theoretical physicist Carlo Beenakker tracked down the Majorana particles and inspired Leo Kouwenhoven from TU Delft to try to create them in a superconducting nano-structure. He succeeded in doing so in 2012, and the news made headlines around the world. But a lot of work still…

Cathodic corrosion for producing nanoparticles was (re)discovered when trying to control the electrochemical etching of a scanning tunneling microscopy (STM) tip.

Decarbonizing the building stock is critical for realizing the climate-neutral target for the Netherlands.

The urban graveyard presents several studies in which the results of older archaeological and osteoarchaeological research are compared to more recent excavation data from several Dutch, Belgian and Danish cities and towns.

The Oral History project, as part of the Tell Balata Archaeological Park project, published an arabic-english booklet of local stories about the site of Tell Balata. An archaeological site near Nablus (West Bank).

Known technical issues that still need a definitive solution.

What does it mean to eat healthily and responsibly? This question is gaining a new urgency now that in many countries undernourishment is being overtaken by diseases of affluence, such as obesity, and we are also becoming more aware of the environmental impact of our eating habits. It’s time to take…