Academics who offer their books free online reach many more readers and are cited slightly more often. Surprisingly enough, it has little effect on the sale of paper editions, positive or negative. This is the conclusion of PhD candidate Ronald Snijder. PhD defence 29 January.

The issues surrounding the crises at the Dutch Tax Authorities and the Dutch Ministries of Justice and Defence had been known internally for considerable time. The information had been duly passed but criticism was largely ignored. Contradiction expressed by civil servants was not appreciated and even…

Peter Kop, secondary school teacher, PhD, and teacher educator at ICLON, studied how sketching a graph of an algebraic formula could promote students’ symbol sense. Defence on 18 November.

Massive science communication projects should be based on strong and relevant science cases. They should engage with a large number of stakeholders, not only in research, academia, policy, funding and governance but also in less traditional communities, such as the arts field. This is the outcome of…

Excessive regulatory burden causes economic harm and can undermine trust in government. Policymakers wishing to ease this should be more mindful of people’s differing responses to rules, says PhD candidate Ritsart Plantenga in his dissertation.

Children are often able to decide for themselves whether they want to take part in medical research. In order to be able to make an informed decision, they need clear information. PhD candidate Ronella Grootens set a good example and created a cartoon story. PhD defence 6 December.

The practice of the application of pre-trial detention in the Netherlands raises questions in light of the jurisprudence of the European Court of Human Rights and must be adjusted.

A national survey conducted by Dutch newspapers Dagblad van het Noorden, Turbantia, Brabants Dagblad and the Dutch Federation of Trade Unions (FNV) shows that staff working in disability and mental health care often face violence in the workplace. In the three northern provinces of the Netherlands,…

On 24 November 2022, Simone van der Hof delivered the annual Mulock Houwer Lecture. The title of the lecture was ‘Niet om de knikkers maar om het spel – Over de digitale versie van een vergeten kinderrecht’.

The promise made in the run-up to the last Dutch elections that the ‘next cabinet formation process will be quicker and more transparent’ has already proven unrealistic. To what extent does a minority Dutch government stand a chance in the Netherlands’ fragmented political landscape? Corné Smit, external…

As from 1 August 2016 Jannemieke Ouwerkerk will be appointed to the position of Full Professor of European Criminal Law at the Institute for Criminal Law and Criminology of Leiden University. It concerns a full-time position. She will deliver her inaugural lecture on 7 April 2017 at 16.00.

I am a Lecturer in Contemporary Military History and Security Studies, teaching in both the History and International Relations programmes here at Leiden. I grew up in Yorkshire, England and was interested in history and international politics from a young age. In 2003 I went to the University of Cambridge…

On 20 October 2016, a highly successful 2nd CML Rev Annual Conference took place, in Oslo. This was organized in cooperation with the Oslo Centre for European Law. The title was: Crossing Europe’s Borders: New approaches to migration in European law.

The Child Law Department of Leiden University and Defence for Children kindly invites you to the fourth Jaap Doek Children’s Rights Thesis Award Ceremony and the official launch of the book ‘The United Nations Convention on the Rights of the Child. Taking Stock after 25 Years and Looking Ahead’ (Brill…

Het team van vier studenten fiscaal recht heeft zich geplaatst voor de finale van de meest prestigieuze wereldwijde pleitcompetitie op het terrein van internationaal en Europees belastingrecht.

New Chinese CSC PhD’s are welcomed at the Leiden Institute of Chemistry. On the 28th of September 2012 a three week introduction program started especially for this new incoming group of scientists.

Many students who graduated during the pandemic were unable to celebrate their graduation in style. To make up for this, they were given the chance to sign their name in the Sweat Room on Friday 26 May.

Insurance companies are registering more and more people for having committed fraud. In principle, it is a good idea to tackle cases of fraud. However, research shows that an increasing number of people are being wrongly included on the fraud list. According to Bart Custers, Professor of Law & Data…

On Wednesday 5 July 2017 the Child Law Department and the Grotius Centre for International Legal Studies of Leiden Law School hosted a festive drinks reception to celebrate 5 years of the Frontiers of Children's Rights Summer School, that has welcomed professionals, researchers and students from all…

On 28 January 2025, Philip Purnell successfully defended his PhD thesis at Leiden University, titled

An interview with Assistant Secretary General for Emerging Security Challenges David van Weel, and NATO Secretary General’s Special Representative for Women, Peace and Security (WPS) Clare Hutchinson

2024 was a remarkable and eventful year for the Faculty of Governance and Global Affairs. In this year overview, we look back month by month at the key events and developments.

At the Faculty of Archaeology, we investigate the development of human societies worldwide, from the earliest beginnings to modern times. We also study the heritage of mankind, which evokes this deep history, and which connects with, and informs, contemporary society.

Leiden Law School has a strong tradition of research in the field of fact-finding and evidence in criminal cases.

The Cyber Security lecturers are scholars and lecturers of Leiden University, Delft University of Technology and The Hague University of Applied Sciences.

By working together with external social partners, the knowledge of our scientists finds its way into society.

To help you improve your skills in communicating about your research in English, the Graduate School has an in-house Academic English Lecturer.

There are many complex links in the chain that provides patients with new drugs: from fundamental science, to clinical tests, to production. The entire chain can be found in Leiden. Leiden University, the Leiden University Medical Center (LUMC) and the businesses at the Leiden Bio Science Park (LBSP)…

Fear of repayment demands is causing people to forgo benefits and financial support, even when they are eligible. This was one of the finding of Olaf Simonse in his PhD research on financial stress and the non-use of social services. His proposal: 'Let the government take the initiative.'

Portraits of six Leiden professors for whom 8 February 2016 was the first time that they took part in the procession of Leiden professors at the Dies Natalis.

In one in four criminal cases in the Netherlands, the court receives a report on the state of the defendant’s mental health. How is that information used exactly and what are the consequences? Scientific research has been lacking in this area. The PhD research of Roosmarijn van Es is a first step in…

Ambroise Paré, Thomas Sydenham and Herman Boerhaave: all were great medical innovators in their time. We know far less about the 19th-century Russian physician and scientist Nikolay Ivanovich Pirogov. PhD candidate Inge Hendriks researched him in Dutch and Russian archives and collections. She discovered…

An e-coaching programme helps people with chronic kidney disease, particularly in areas that patients themselves want to work on. ‘A healthy lifestyle is important for patients with kidney disease: it can slow down the loss of kidney function and there will be fewer complications,’ Katja Cardol explains…

The genetic code of the new coronavirus has been found: it is closely related to the SARS virus from 2003. Professor of Molecular Virology, Eric Snijder, has been researching coronaviruses for years. We asked him a few questions about the outbreak. ‘It’s still unclear whether this new virus is more…

There is a real chance of war closer to home, political and military leaders in Europe have warned. What does Frans Osinga, Professor of War Studies, think about the threat and what we should do?

Before founding their American colony, the Pilgrim Fathers first lived in Leiden in the early 17th century. This group has no fewer than nine American presidents among its descendants. The University played an important role in the Pilgrims’ life in Leiden.

In March 2022, a considerable number of non-Western countries abstained (35) or voted against (5) a resolution deploring Russia’s aggression, its violation of the UN Charter and demanding the withdrawal of its forces from the territory of Ukraine. Even fewer countries subsequently actively supported…

The Catholics were by no means pitiable victims over the two centuries that they had to practise their religion underground, Caroline Lenarduzzi writes in her PhD dissertation. They managed to keep their faith alive from the mid-sixteenth to the mid-eighteenth century. PhD defence 25 October.

The response of international organizations to the problems of cross-border death and gift taxation needs to be revisited, according to PhD candidate Vassilis Dafnomilis. PhD defence on 3 June 2021.

The liquidator is, according to the law, the initial designated person to signal and address irregularities in insolvencies. But when tackling fraud costs more than it generates, what does that mean for the liquidator’s course of action? And which factors obstruct liquidators in addressing these irregularities?…

To read Chekhov in the ‘original’. That was what motivated Arie van der Ent to study Slavic languages and literature with Karel van het Reve at Leiden University. ‘My love for Chekhov hasn’t faded,’ says Van der Ent from his home 60 kilometres south of Kyiv. ‘But it has for the rest of Russia.’

A restless night aggravates symptoms in those experiencing suicidal thoughts, as psychologists Liia Kivelä and Niki Antypa have found in their study on the short-term risk factors of suicide. They argue that targeting sleep could thus be essential for suicide prevention.

What do you derive your self-esteem from? Not a question you would quickly expect in a course on leadership. Lecturer Michel Don Michaloliákos opted for a unique approach to 'A Taste of Leadership', an Honours course with introspection as its core theme.

Public procurement is not a hot topic for the average citizen. That’s a pity, says PhD candidate Erik Plas, who did research on the fair spending of public money: 'If a council project goes completely haywire, because it costs more than expected, it could even mean that local taxes will have to be r…

On 15 May, the ambassadors of 11 Latin American and Caribbean countries were shown the highlights of research at Leiden University Faculty of Science. Furthermore, Prince Carlos de Bourbon de Parme awarded prizes to two young academics who conduct research in Latin America.

Lecture

Many teachers in secondary education take differences between pupils into account . PhD research by Saskia Stollman (ICLON) shows that they need room to experiment and the support of the school management. Defence on May 23, 2018.

Biological chemist Nathaniel Martin is going to test an alternative antibiotic that can combat common resistant bacteria such as MRSA. For this purpose, he will receive 350,000 euros from the NWO's NACTAR programme. ‘We want to know how safe and effective our antibiotic is in a realistic situation.’

Macrophages – the front line of our immune system – protect us from infections. But in the case of the tuberculosis bacteria, this often goes wrong. The group of Annemarie Meijer from the Leiden Institute of Biology has now discovered that macrophages in zebrafish are better able to eliminate tuberculosis…

Neuroscientist Anne Hafkemeijer is able to distinguish two different forms of dementia using advanced imaging techniques. This is the first step towards early recognition of dementia in patients on the basis of brain networks. PhD defence 26 May.