Artin L-functions associated to continuous representations of the absolute Galois group G_K of a global field K capture a lot of information about G_K as well as arithmetic properties of K.

'I hope to contribute to a better understanding of social dilemmas we constantly face, like those that arise with climate change or the current pandemic,' says social and organisational psychologist Jörg Gross in an interview on his Starting Grant of the European Research Council (ERC).

If someone around you yawns, the chances are that you too will soon yawn. In orangutans it has now been found that scratching is very contagious. This is what cognitive psychologists from Leiden discovered at Apenheul Primate Park. Publication in American Journal of Primatology.

Former masterstudent Bio-Pharmaceutical Sciences Maddalena Centanni will be awarded the 2020 Arenberg Coimbra Prize for Erasmus Students. Centanni spent her six month Erasmus exchange at Uppsala Universiy in Sweden where she looked for ways to improve anti-cancer drug dosing.

Governance of crime and social disorder debate on Pacifying Police Unit (UPP) winning lot! In the group presentation in the CSM-elective ‘governance of crime and social disorder’ of teacher Elke Devroe CSM students battled again for the winning lot, namely this blog published in the Leiden University…

In this thesis three different topics in number theory are studied.

On 21 March 2018, the Dutch people will vote for local their municipality board. In preparation for these elections, the local lobbying groups are more than ever present to voice their own local interests. Arco Timmermans, Endowed Professor Public Affairs at Leiden University, discusses these groups…

In April 2018, Melanie Fink was elected as a member of the Coordinating Committee of the ESIL Interest Group ‘The EU as a Global Actor’. For the next four years, she will work in that function alongside Christine Kaddous (University of Geneva), Anne Thies (University of Reading), and Ramses Wessel (University…

On October 20 and 21, 2016, Leiden University will host an international conference under the title

On Thursday 29 April 2021, Melanie Fink appeared before the European Parliament’s Working Group on Frontex Scrutiny.

Behind the relatively stable income inequality in the Netherlands, big changes have been happening. Income inequality has increased over the past 40 years, but less sharply because women in lower income groups have begun working more. In contrast, men’s income has increased very little over the past…

On Friday 23 April, Jorrit Rijpma appeared before the European Parliament’s Working Group on Frontex Scrutiny. This working group was set up by the Parliament’s Committee on Civil Liberties, Justice and Home Affairs (LIBE) in response to allegations of serious fundamental rights violations taking place…

A complex discussion is currently taking place in the Municipality of The Hague. An alderman has shared secret information about a future shelter with a group of select residents, asking them not to share this information with others. Geerten Boogaard, Professor Local Government, talks about the issue…

Tackling key challenges of Chemical Biology and Medicinal Chemistry to aid drug discovery is one of the focus areas of Leiden University. To this end, the Leiden Early Drug Discovery & Development network (LED3) was established by the Leiden Institute of Chemistry (LIC), the Institute of Biology Leiden…

In Dutch newspaper NRC, Pieter Omtzigt says he finds it 'unconstitutional' that he has no right to vote in committee meetings. Omtzigt believes he is as much a Member of Parliament as other MPs. However, since 2017, a breakaway group is no longer entitled to a proportional share of staff support and…

The Rural Riches research group convenes for coffee on a daily basis. Remotely, that is, to prevent the spread of coronavirus. It is the perfect way to stay connected, exchange ideas, and socialise. ‘We now are more in touch with each other than in the usual situation when we are all at the Faculty.…

Mathematician Oliver Nagy still vividly remembers the first time he learned about a random walk. ‘The lecturer told us to imagine a company of drunken students who wander in the streets. At each intersection, they would spin one of them around and all would go in the direction where he or she came to…

Simone van der Hof, professor of Law and Digital Technology at eLaw, has joined the EU Special Group on Code of Conduct for age-appropriate design as an expert.

The goal of the new mentor project is to help first-year students at the Faculty of Governance and Global Affairs find their way in a university environment that has changed dramatically due to Covid-19. The project has been running since the beginning of this academic year. Two student mentors and…

How and why governments engage with civil society as well as how civil society organizes itself and exerts political influence constitute the key focus of the research programme Public Governance & Civil Society. As such, this research programme offers unique expertise within the field of public administration…

Masses of hamburgers, steaks, cheese and a lot of eggs: Americans love their animal products. But researcher Oliver Taherzadeh discovered that only a relatively small group of high-volume consumers need to modify their diet to achieve an enormous environmental gain.

The Royal Conservatoire and the Royal Academy of Art have a long tradition of stimulating research in the arts. ACPA is currently developing with both institutions a new platform for research in and with the arts, with an emphasis on collaboration.

In a series of six lectures, Jed Wentz, the Utrecht Early Music Festival’s artistic adviser, will acquaint you with subjects central to the developments in early music worldwide. First lecture starts 15 October!

In this new four CD box set release sonatas of the relatively unknown French composer Jean Daniel Braun have been recorded by ACPA's Jed Wentz and Dutch ensemble Musica ad Rhenum.

On 18 October 2017, Leiden Law School was honored to welcome a group of experts upon invitation of Prof. M.R. Bruning, professor of Child Law and head of the Child Law Department of Leiden University, to discuss current and future research projects in the field of international child abduction law and…

In October 2024, Jannemieke Ouwerkerk, Professor of European Criminal Law, was appointed to the European Commission’s (EC) Expert Group on EU Criminal Policy. This independent advisory group focuses on improving coherence and consistency within EU criminal law policy.

The ELS lab @Leiden is looking for colleagues to join the newly introduced topic group on Goed Werkgeverschap (‘good employment practices’).

On the occassion of the appearance of new drone footage of indigenous groups living isolated in the Amazon rainforest, Meliam Gaspar was interviewed by RTL Nieuws. She spoke about the dangers these people face due to the encroaching modern world.

Professor of Financial Law Matthias Haentjens is recently appointed member of the European Commission’s Expert Group on Conflict of Law regarding Securities and Claims. The Group’s tasks shall be to assist the Commission with its work on conflict of laws on third-party effects of transactions in securities…

The Event Horizon Telescope (EHT) collaboration receives the 2021 Royal Astronomical Society Group Achievement Award. In April 2019, the EHT team presented the first-ever photograph of the shadow of a black hole. Leiden professor Huib-Jan van de Langevelde has been director of EHT since last year. Three…

Glycoconjugate vaccines are composed of microbial poly- or oligosaccharides covalently linked to a carrier protein.

To easily take part in group decision-making research, Jörg Gross, Assistent Professor Social and Organisational Psychology, launched a platform that allows students at the social interaction lab. Sign up to receive invitations if you are interested in taking part in on-going scientific studies in the…

The interdisciplinary, English-taught minor ‘Violence Studies’ looks at violence from very diverse scientific perspectives. What are the benefits from this approach? Students and lecturers evaluate: ‘This minor’s a goldmine’.

A new discussion paper published in Policy Sciences by two Leiden researchers claims that governments are working with one hand tied when it comes to data on vulnerable groups. At the core of this paper is the idea that even though the volume of data has increased in recent years, the quality of the…

If you know a crime is about to occur, should you be able to prevent it before it has even happened? This was one of the questions that was posed in light of predictive policing as a form of mass surveillance during the debate in the elective Governance of Crime and Social Disorder class of the Crisis…

On Thursday 28 January 2016, Prof. Carsten Stahn contributed to the OPCW Sub-Working Group on Non-State Actors, together with Professors Andrew Clapham (Geneva) and Dapo Akande (Oxford), in the presence of the Ahmet Üzümcü, Director-General of the OPCW.

On Wednesday, 5 September 2018, the second group of employees of the Ministry of Infrastructure and Water Management (IenW) started the managerial track of the Data Science course given by Leiden University (LCDS).

Between 5 and 8 September, PhD Candidate Esteban Szmulewicz attended the 45th annual Conference of the European Group for Public Administration (EGPA), which was organised in close cooperation with The Faculty of Law of the University of Zagreb and other key partners.

The annual Computer Applications and Quantitative Methods in Archaeology (CAA) conference is the most important scientific event in the field of digital archaeology.