Promotor: Prof.dr. G.P. van Wezel, Co-Promotor: E. Vijgenboom

Promotor: P.J.J. Hooykaas, Co-Promotores: P.B.F. Ouwerkerk, M. Wang

The transition period in which men become fathers might provide an important window of opportunity for parenting interventions that may produce long-term positive effects on paternal care and, consequently, child development. Existing prenatal programs traditionally focus on maternal and infant health…

Dit proefschrift beschrijft een collectie aan alternatieve strategieën voor het begrijpen, ontwerpen en toepassen van lipide nanosystemen, waarin de rol van de bio-nano interacties centraal staan. In het bijzonder wordt gekeken naar de interactie van RNA-lipide nanosystemen, bekend van de toepassing…

The PID-directed shift in PIN polarity has been broadly accepted as one of the essential mechanisms for the regulation of auxin transport polarity.

Irna Hofman defended her thesis on 10 January 2019.

Actinobacteria are Gram-positive bacteria that have a complex multicellular life cycle and are well known for their ability to produce a wide range of bioactive natural products (NPs).

On Friday 7 March 2025 Adam Knight successfully defended a doctoral thesis and graduated.

While many healthcare professionals indicate that they frequently use placebo effects and their mechanisms, there is little formal training on how to deal with placebo and nocebo effects in clinical practice. This project aims to address this gap between scientific knowledge on placebo and nocebo effects…

This project is funded by the Dutch Cancer Society. The project will be part of an ongoing research line aimed at identifying mechanisms of cancer therapy resistance and metastasis. In this project, it will be investigated how the Grainyhead family of transcription factors controls therapy response…

The Schengen countries officially abolished border controls, but checks actually still exist. Maartje van der Woude has written a book about these veiled border controls: ‘The danger is that Schengen will have lots of borders, just not visible ones.’

What does it feel like to become a citizen in a new country? For her PhD research, Hannah Bliersbach immersed herself in the world of immigration. She interviewed dozens of new citizens in Germany and Canada and found that citizenship is, above all, a transactional process.

What is the effect of training children to exercise self-control? Niko Steinbeis has been awarded a major European subsidy to find the answer to this question. The innovative aspects of this research are the target group, an individual approach to the training and examining the child brain the scann…

To make digital communication more secure, we need to tighten up the legal frameworks and identify the biggest cyber threats.

EU Member States are struggling with rising numbers of migrants and asylum seekers. At the recent EU summit, agreements were reached on better controls at the external borders of the European Union and more consultation with countries where migrants come from.

Mark Klaassen recently gave a lecture at the Aliens Division of the Court of Rotterdam on the impact on the judicial system of the Dutch cabinet’s plans on immigration and asylum and the future implementation of the EU Migration Pact.

Dubbel asiel aanvragen mag niet. Toch draagt Nederland slechts één op de vijf asielzoekers over aan andere landen tijdens een lopende asielprocedure. Dat blijkt uit cijfers van de Immigratie- en Naturalisatiedienst (IND). Universitair docent Mark Klaassen sprak hierover met EenVandaag.

Anti-immigration protests over asylum seekers receive extensive attention, but PhD candidate Clare Fenwick says it’s a vocal minority taking to the streets. 'The silent majority might also have migration concerns, like job losses due to labour migration, but these views seem to remain outside public…

My name is Rachel van den Berg, and I’m 24 years old. Last year I received my master’s degree in Korean Studies, and I’m currently working as Logistics Officer at Hyundai Global Services Europe.

The Schengen Agreement has resulted in systematic border controls between EU Member States largely ceasing to apply. Solutions for the associated security risks are often sought in information technology. Tim Dekkers investigated how such technology is applied in this context and will defend his PhD…

A new LUMC study has changed our understanding of how cells work. Researchers have discovered that the CFAP20 protein acts as a kind of ‘traffic controller’ on DNA. Without this protein, chaos ensues, potentially causing cancer. Their findings have been published in the prestigious journal Nature.

The philosophers at the Institute for Philosophy develop new perspectives and insights not only on topical themes such as immigration and climate change, but also on more fundamental philosophical questions.

The Institute of Public Administration at Leiden University is located in the administrative heart of the Netherlands, The Hague. From this central location, the institute bridges academic research and practical application to address current issues both domestically and internationally.

The Institute of Public Administration at Leiden University serves as a bridge between academic research and practical application from its base in The Hague.

Leiden is the place for Law

Comparative and Dutch Politics is one of the three organisational clusters of the Institute of Political Science.

One of LUCIR’s key objectives is to bring together scholars and students of International Relations. To this end, LUCIR regularly organises events such as conferences, roundtables, lectures and book launches.

Rigid materials break more easily than floppy ones. This simple observation allows to predict and control the width of cracks. Theoretical understanding of how materials break is useful in for example the production of cars or screens. Publication in PNAS.

Moritz Jesse, Associate Professor at the Europa Institute Leiden, was a speaker at the International Conference European Constitutionalism And the Virus of Distrust Conference, which took place on 27 and 28 April in Prague. The Conference brought together academics from all over the European Union to…

Mariana was recently interviewed by the New Humanitarian about data protection issues regarding the involvement of Frontex in Niger.

The Faculty of Science adopted an action plan Diversity and Inclusiveness in 2015. In this action plan, the Faculty commits to a number of actions to further improve diversity and inclusion for staff and students, such as more female full professors at the faculty, and encourages initiatives that foster…

Dr. Moritz Jesse, associate professor of European Union Law at the Europa Institute Leiden, addressed the members and audience of the panel “Citizenship and the Refugee Crisis” at the World Conference of the Association for the Study of Nationalities in New York, which took place at Columbia University,…

Reijer Passchier universitair docent Staatrecht in Leiden en hoogleraar Digitalisering en de democratische rechtsstaat aan de Open Universiteit, presenteerde op 11 februari zijn bevindingen over het gebruik van digitale systemen bij de uitvoering van wetten, aan de Vaste Kamercommissie Digitale Zaken,…

Due to its economic prosperity, its policy of (relative) religious tolerance, and its large numbers of migrants, the Dutch Republic has long had a reputation of being the prime example of ‘tolerance’, especially during the seventeenth century. Although the great variety of newcomers in the Dutch Republic…

How did the Arabs manage to maintain an empire based on Islamic principles for three hundred years? Arab expert Petra Sijpesteijn and her team will be examining this question over the coming five years, focusing on the correspondence of ordinary people. The research is being funded by an ERC Consolidator…

How did Fustat develop between 640 and 750 to become the capital of Egypt? At the time Egypt was a province of the Islamic empire - the caliphate - that had been started by the prophet Muhammad. Original sources used by Arabist Jelle Bruning give new insights into the city. PhD defence on 2 April.

Mark Klaassen, assistant professor at the Institute of Immigration Law, has been appointed as a committee member in the Advisory Committee on Migration Affairs.

We are seeking papers to be presented at the DAMR Fall Conference on the topic of unaccompanied minors in the European Union. The conference will take place on Wednesday 23 November 2022 at Leiden University.

Which criteria do ED patients and therapists evaluate as most relevant for recovery? Do patients and therapists differ in their evaluations? Do eating disorder patients differ from a healthy control group in their scores on the Recovery Scale?

On Friday 16 May Juul Eijk successfully defended a doctoral thesis and graduated.

Judicial officers have some leeway in how they act. In most cases that's fine, but it can also lead to abuses, such as ethnic profiling. It is easy to forget that these are not isolated decisions, but are also part of a framework of formal policies. Professor Maartje van der Woude calls for more comprehensive…

The German state of Saxony-Anhalt is set to make recognition of the state of Israel a requirement for becoming a German citizen. However, Peter Rodrigues, Emeritus Professor of Immigration Law, has told Dutch daily newspaper Nederlands Dagblad that introducing a similar measure in the Netherlands would…