The research within the Private International Law Department covers private international law, with a particular focus on the fundamental principles of formal private international law.

The Pavement Plants Citizen Science Project invites citizens to monitor plant species growing around their homes, neighborhoods, or towns. The goal is to collaboratively monitor urban flora, measuring and revealing the species richness and biodiversity of the urban ecosystem. We believe this will lead…

Mining time series is a machine learning subfield that focuses on a particular data structure, where variables are measured over (short or long) periods of time.

Leiden University is building an open, learning organisation: a strong community where we trust each other, work well together, and take responsibility. This is also about how you as a staff member can contribute to team results, your own growth and development, and a pleasant, safe working environment.…

State fragility and conflict continue to be among the most enduring development challenges of the 21st century. The consequences of fragility and conflict on individuals, States and the international community are profound. At the individual level, an estimated 2 billion people or a quarter of the world's…

Promotor: Prof.dr. P.C. van Welzen

The ongoing increase in antimicrobial resistance combined with the low discovery of novel antibiotics is a serious threat to our health care.

Freshwater and brackish water ecosystems are arguably the most vulnerable ecosystems on earth, due to concentrated human developments in and around them. The Pontocaspian (PC) region located at the border of Europe and Asia contains a variety of brackish water ecosystems and unique inhabitants, known…

On February 20th, Gulnaz Sibgatullina succesfully defended her doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Gulnaz on this great result.

Leiden University offers support in the different stages of your research lifecycle.

Promotor: J.N. Kok, Co-Promotor: A.J. Knobbe

ReCNTR is an interdisciplinary research center dedicated to the advancement of multimodal and audiovisual research methods in the social sciences and humanities. It is supported by the Institute of Cultural Anthropology, the Institute of Political Science, the Center of the Arts in Society at Leiden…

How do genetic and environmental factors make us vulnerable to depression?

Promotores: Prof.dr. E.A.L. Biessen, Prof.dr. T.J.C. van Berkel

The Division of Systems Pharmacology and Pharmacy (SPP) aims to develop precision medicine approaches to characterize and predict variation in treatment response and enhance translational drug development strategies.

Interested in becoming a member of the jury? Please read more here.

The central goal of academic publishers is the dissemination of the results of research and scholarship. Their audiences can generally be divided into two categories. Academic publications are firstly made accessible to the scholarly community, so that these texts can form the input for new academic…

The Supramolecular & Biomaterials Chemistry group comprises the PIs Alexander Kros, Roxanne Kieltyka, Gregory Schneider and Sander Wezenberg, and is active in the field of self-assembly of amphiphilic peptides and applying them in supramolecular chemistry.

The research of the Applied Mathematics cluster is concerned with such diverse topics as dynamical systems, representation theory, differential equations and pattern recognition.

Smart digital infrastructures predicated on myriads of sensors distributed in the environment are often rendered as key to contemporary urban security governance to detect risky or suspicious entities before or during a criminal event takes place. At the same time, they often involve surveillance of…

The Centre for Indigenous America Studies (CIAS) at Leiden University is designed to coordinate and promote the teaching and research of Indigenous languages, literatures, cultures and cultural heritage. Our aim is to contribute to an increased acknowledgement, recognition and understanding of Indigenous…

Autophagy is a fundamental degradative process, maintaining cellular homeostasis and functions in host defense against intracellular pathogens, including mycobacteria and Salmonella.

The Young Academy Leiden co-organizes several workshops during the upcoming ESOF conference at Leiden University. Please join us in the European City of Science 2022!

On 23 April, Andreas Häuselmann defended the thesis 'EU privacy and data protection law applied to AI: unveiling the legal problems for individuals'. The doctoral research was supervised by Gerrit-Jan Zwenne and Bart Custers.

This dissertation presents the synthesis and evaluation of antibody recognition for various capsular polysaccharide (CP) fragments of Staphylococcus aureus (S. aureus).

This dissertation explores new chemical strategies for the synthesis of self-adjuvanting peptide conjugates and immunomodulatory ligands aimed at targeted activation of the immune system.

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

On Wednesday 7 December 2016 the Government Commission for Reassessment of parenthood (Staatscommissie Herijking ouderschap) presented the report ‘Child and Parents in the 21st century’ to Minister Van der Steur of Security and Justice. Prof. dr. Ton Liefaard, UNICEF Professor of Children’s Rights at…

Lecture

What better way is there for an alderman to find out where best to put his efforts than to pay a working visit to the university? Hilbert Bredemeijer, Alderman in The Hague for Education, Sport and the Outdoor Space, paid a visit to Campus The Hague on Wednesday 6 October 2021.

A new report reveals five actions that leaders can take to contribute to economic development, advance global security and sustainability, and make space a safe and globally accessible domain.

On 26 April 2017, Melanie Fink, PhD candidate at Leiden University and the University of Vienna, participated in a round-table discussion on ‘The “agencification” of EU foreign and defence policy: what role for the EU home affairs agencies abroad?’

In recent months, the Dutch Islamic Haga Lyceum has increasingly come under the suspicion. The school is suspected of spreading a state-threatening version of the Salafist doctrine. This information came from the Dutch Intelligence and Security Service (AIVD).

An effective and equitable approach to resource conflicts?

Telling sensationalised stories, exaggerating benefits and understating the risks: creating ‘hype’ about something doesn't sound like something a responsible scientist would indulge in. Or could we also use hype in a ‘good way'? What could we achieve by opening up quantum futures for wider discussions,…

Joachim Koops, Professor of Security Studies and Scientific Director of Leiden University’s Institute of Security and Global Affairs (ISGA) has been awarded a ‘Jean Monnet Chair’ with a focus on ‘The European Union’s Role in Security and Global Affairs’ (EURISGA).

The LUCDH foster the development of new digital research by awarding a number of Small Grants each year. As in previous years the LUCDH received a large number of excellent grant applications for Research and Personal Development funds. Congratulations to the recipients of this year's research award…

Sleep disorders have a significant influence on our physical and emotional health. Sleep should therefore receive more attention within lifestyle medicine, says Professor Gert Jan Lammers. He will give his inaugural lecture on Friday 20 May entitled: ‘Getting to sleep’.

Labour law experts have called on the Dutch government to review the bill for the Dutch Assessment of Employment Relationships and Legal Presumption (Clarification) Act (‘VBAR’). Experts consider this legislative proposal, which aims to clarify the criteria for assessing employment relationships, as…

Research by Dutch television programme ‘Nieuwsuur’ shows that local councils in the Netherlands often lack civil servants and experts to support the implementation of the energy transition. As a result, they have become more dependent on commercial consultancy firms.

Dr. Eduard Schmidt interviewed a hundred government managers from different ministries who had to perform cuts in own budget to various extents, under the Balkenende, Rutte I and II cabinets. Dr. Schmidt had one central research question: how do public managers in the Dutch government handle austerity…

Anneleen van der Meer discusses Russia's alleged use of chemical weapons in Ukraine in an article for The Conversation.

PhD defence

PhD defence

Kira Nijland follows the master programme Policy in Practice and is since October the student member of the Institute Board of Cultural Anthropology. She previously gained board experience at study associations Itiwana and WDO. Now she would like to get to know the university structures from behind…

What opportunities does uncertainty offer with regard to innovative behaviour of professionals and what role does leadership play in this?

On 3 September 2025, more than 30 archaeological objects were returned to Peru, Panama and Costa Rica. The objects come from a private collection belonging to the descendants of physician and amateur archaeologist Dr Hans Feriz. In her will, his daughter stipulated that the objects collected by her…

The Sustainability Monitor 2024 reveals that Leiden University has again taken significant steps to become a more sustainable and future-proof university. Since 1990, its carbon emissions have decreased by 50 per cent and, compared with 2019, its natural gas consumption has dropped by 32 per cent. Its…

At Leiden University College, Jaap de Hoop Scheffer urged Europe to show unity and strength in a world defined by fear, power politics, and uncertainty.

With her Veni research, investigator Rosanne Baars from the Institute of History aims to demonstrate that women played a role in the eighteenth-century diplomatic circles of the Ottoman Empire. ‘We already know that one woman led the entire embassy.'