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…

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

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).

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.

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…

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…

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…

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…

Do you practice public engagement? The International Astronomical Union (IAU) has just released a unique set of open-source materials designed to be used in public engagement training workshops.

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.

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.

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.

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…

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’.

On Thursday 10 November, the Night of the Lobbyist was held. During this public event, organised by Leiden University and the Public Affairs Academy, many insights were shared regarding the different aspects of lobbying and the diversity of the world of the lobby.

Why do vulnerable groups fail to make use of benefits that they are entitled to? This is what Max ten Velde researched in his Master’s in Management of the Public Sector thesis, which has been nominated for the Netherlands Court of Audit’s thesis prize.

People already diagnosed with a mental disorder before the COVID-19 pandemic did not show a disproportionate increase in symptoms afterwards. This is one result from the first systematic review of longitudinal studies following their study population from before to during the first eighteen months of…

The presence and participation of interest groups in policymaking processes has become a crucial component of Western democracies. These groups link society and policymakers and influence public policy choices. Their function however, is often taken for granted and not very well researched. Adrià Albareda…

Mariëlle Bruning, Professor of Child Law, is elected Member of the Expert Group on Responses to violence against children (CAHENF-VAC), which is established to assist the Ad hoc Committee for the Rights of the Child (CAHENF) of the Council of Europe.

In October, Sophie Starrenburg was elected as a member of the Coordinating Committee of the ESIL Interest Group on the International Law of Culture. She will work alongside Giovanni Carlo Bruno (Italian National Research Council), Andrzej Jakubowski (Polish Academy of Studies), and Lucas Lixinski (University…

This thesis describes the design and synthesis of fragments of various cell wall carbohydrates of the Streptococcus species, including the branched Group B-specific antigen (GBC) of Group B Streptococcus, glycerol phosphate (GroP) modified group A carbohydrate (GAC), and the O-acetylated type 1 capsular…

Marike van Aerde was at the brink of traveling to India for fieldwork when that country closed its borders, three weeks ago. Only a few days later, Leiden University followed suit in temporarily banning all fieldwork trips. With her research team scattered across different continents, she does her best…

On Wednesday 6 September 2017 the Interest Group on Migration and Refugee Law of the European Society of International Law (ESIL/SEDI) hosted a workshop in Naples, Italy, in cooperation with the ILS 2.0 Project.

Didactics

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.

Reading group

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

Lecture

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

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…

Course | Reading Group

PhD defence

Dialysis patients experience a range of physical and mental symptoms that interact and influence each otherIn her doctoral research, psychologist Judith Tommel wanted to find the optimum approach to help these dialysis patients improve their quality of life. ‘We need to make sure we avoid excluding…

Lecture

Conference

PhD defence

PhD defence

How interest groups, differences in policy issues and institutional differences between countries affect whether public opinion is translated into policy?

Debate, Symposium

Promotor: H.W. Lenstra

PhD defence

Promotores: S.J. Edixhoven, F. Andreatta

Promotor: R. Gill, Co-promotor: P. Massart

Promotores: B. Erez, P. Stevenhagen, Co-Promotor: B. de Smit

On 14 and 15 September, the 'Lobbying the Courts' workshop took place in Paris. This was an interdisciplinary workshop in which researchers from different disciplines came together to brainstorm on whether, how, and when interest groups focus on the judicial process and the courts in their lobbying…

Debate