Most degree programmes at the Faculty of Social and Behavioural Sciences are based in the Pieter de la Court building on the Wassenaarseweg in Leiden. Besides this location, some degree programmes are based in The Hague, at Campus The Hague’s Wijnhaven building.

Psychology Lab on Wheels is available for rent for your on-site research. What does the mobile lab look like? What are the requirements? How do you make good use of the mobile lab?

Do offshore windfarms affect the local biodiversity of the pelagic fish community and are fish deterred or attracted by sounds?

These awards honour researchers who turn scientific insight into real-world impact. From master’s students to postdocs, they highlight exceptional work in life sciences, health sciences, biotech, or environmental health sciences with data science at the core. Meet the 2025 winners.

A new type of tripodal squaramide-based supramolecular hydrogels is developed and studied.

COI@Leiden organises activities and events throughout the year. These include a monthly seminar series on topics relating to conflict resolution and PhD labs to assist COI students in developing their research skills.

Questions of justice are not only the concern of legal professionals, politicians and activists, they also permeate culture at large. Literature, Cinema, Music and Artworks often revolve around questions about rights, justice and fairness, raising a wide range of issues, such as: how do we understand…

PhD defence

Lecture, Hybrid workshop

Lecture

Research at the Macromolecular Biochemistry group is comprised of the following research themes:

Leiden University’s Master of Laws in Advanced Studies in International Financial Law (L.L.M.) examines the complex, international and multidisciplinary area of law and finance: markets, regulation and a sustainable society.

In this article, the authors explore why there is substantial cross-national variation in the level of regulatory clarity surrounding cryptocurrencies

Now online in Molecular Microbiology our studies on the motility of Sulfolobus acidocaldarius and its unique swimming organelle, the archaellum.

Featured Reviews published on the HJD blog offer an accessible platform for scholars and practitioners to share reflections, spark dialogue, and highlight innovative ideas shaping the study and practice of diplomacy.

What are the possibilities of converting biowaste streams into value added products? What current and future technologies will enable this transition with minimal environmental and economic costs? The researchers in H2 steel project will enable the transition of sewage sludge into green hydrogen, steel…

Managing a remote team calls for a different leadership style.

Within the FSW, we have put together a core team with contacts in the individual Institutes and at the Faculty level.

Through a range of case studies spanning the post-Cold War period in Iraq, Moldova and Serbia, this book studies asymmetric conflicts where warring sides exhibit vast power differentials.

With the emergence of online social networks (OSNs), the way people create and share information has changed, which becomes faster and broader than traditional social media.

Research in the natural computing group covers theoretical foundations, the development of new algorithms, and interdisciplinary applications of natural computing methods.

La radicalisation est devenue un mot désignant notre monde en couleurs négatives. Ce livre cherche à comprendre ce que c'est que la radicalisation au Sahel et aux Pays-Bas?

This book explores intercultural management challenges in sub-Saharan Africa through a case study of Vasco Silva, a Portuguese businessman in Luanda, Angola.

Do recent developments in the European security architecture signal the end of multilateral cooperation, or the beginning of a new era with emerging forms of international security collaboration?

Here we explain how to attend the workshop "How to Get a PhD Position" on May 7 2021.

An interdisciplinary collection of the best international scholarship on Muslim youth.

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

This book explores the intellectual and cultural flows between Asia and Europe which occurred during – and were formative of – the political and social changes of the first half of the twentieth century.

In this thesis, I targeted the orchid genus Lepanthes, one of the six genera of angiosperms that surpasses 1,000 species in the Neotropics, as a study model to investigate the evolutionary processes that promoted species diversifications.

This thesis describes the development and validation of new high-contrast imaging techniques, with the ultimate goal of enabling the next generation of instruments for ELT-class telescopes to directly image Earth-like extra-solar planets orbiting around nearby stars.

Knowledge that helps protect the Netherlands and Europe from military and cyber threats.

Kaveh Lahabi's lab explores the exotic physics of quantum materials, whose underlying physics seems to have more in common with elementary particles and black holes, than ordinary metals and semiconductors.

Anthropology of Law in Muslim Sudan analyses the hybridity of law systems and the plurality of legal practices in rural and urban contexts of contemporary Sudan, shedding light on the complex relation between Islam and society.

The long-held desire - to link structure directly to function and to explain molecular mechanisms based on basic chemical or physical principles - is finally coming closer, satisfying not only our scientific curiosity but also offering new solutions to the many challenges in the field of health, energy…

Promotor: Prof.dr. M.K. Richardson, Co-Promotor: F. Witte

Are you graduating at the Faculty of Science? Or are you supervising a PhD student? At the Graduate School of Science you find support at every phase of your PhD.

The type-IV secretion system (T4SS) is a machinery able to transfer DNA and proteins between bacteria and in certain cases also to eukaryotic cells.

This book explores the fascinating microvariation in Bantu languages and proposes a new syntactic analysis of subject and object agreement crosslinguistically. This book is open access!

Located in the small Kingdom of Commagene at the upper Euphrates, the late Hellenistic monument of Nemrud Daǧ (c. 50 BC) has been undeservedly neglected by scholars

Promotor: J. Aarts

Biodiversity and trade: mitigating the impacts of non-food biomass global supply chains.

Animal Sciences’ contributions to the Biodiversity & Evolution research theme include evo-devo research, the evolution of cognitive and behavioural traits, and the evolutionary mechanisms of stress adaptation. This research involves both indoor and outdoor studies.

The course is taught by experts from Leiden University’s Institute of Security and Global Affairs (ISGA) and guest speakers from the Centre for Professional Learning (CPL). They bring academic depth and practical experience from the fields of security policy, counterterrorism, and international rela…

Alumni event

Urbanisation is steadily increasing with estimates expecting that 68% of the global population will live in cities by 2050. To accommodate the rural to urban transition, large quantities of land are transformed from natural to urban lands.

Both the international perspective and the Dutch language and culture are deeply embedded in Leiden University’s identity.

What are the conditions under which coercive diplomacy can compel a State to abandon its nuclear weapons program?

Henk Versnel's work on ancient religion has been seminal. For his 80th birthday, a group of scholars assembled to celebrate and analyze his oeuvre.