Can SMILE, our multi-component intervention, which combines cognitive-behavioural therapy for insomnia, mindfulness, stress, and lifestyle components, improve sleep quality? Can it also improve mood and quality of life and prevent depression and anxiety in the long term?

Nature uses a special class of histone proteins, histone variants, to modulate the properties of chromatin at defined genomic locations.

Cytotoxic T-cells (CTLs) are involved in the clearance of viruses and killing of tumor cells.

Promotor: H.J.A. Röttgering, Co-promotor: G.K. Miley

Ragazzi, ‘Suspect community or suspect category?‘, Journal of Ethnic and Migration Studies

Like a mixture of oil and water, lipid membranes separate into two liquid phases.

Promotor: Prof.dr. H.V.J. Linnartz, Co-Promotores: H.M. Cuppen, S. Ioppolo

This study aims to examine how South Korea (hereafter, Korea) and Japan, two neighboring countries in Northeast Asia, have been responding to and mitigating the spread of COVID-19.

The Rural Riches research group convenes for coffee on a daily basis. Remotely, that is, to prevent the spread of coronavirus. It is the perfect way to stay connected, exchange ideas, and socialise. ‘We now are more in touch with each other than in the usual situation when we are all at the Faculty.…

How can we quantify the density of species within a community through environmental DNA concentrations?

If you follow the western media, you are likely to think of ‘Africa’ as the continent of origin of desperate migrants, a continent of hunger and disease and a breeding ground for international terrorism. But if you want to see the bigger picture, you should look no further than the African Studies scholars…

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The emergence of metalwork deposition during the Bronze Age in Northwest Europe, c. 2300-1500 BC

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.

The aim of the project is to contribute to the process of archive formation ongoing in Post-Apartheid South Africa through the inclusion of photographs that have been either unacknowledged or excised from the national canon.

This book presents an in-depth grammatical description of Kumzari, a mixed language spoken in remote villages on the Musandam Peninsula in northern Oman.

The Ager Venusinus Project studies the relatively small number of recognized colonial dwellings dated securely to the period of colonization (i.e. the 3rd century BC). With a special interest in the Black Gloss ceramic typochronology

This paper sheds light on how better monetary-fiscal coordination can be expected to play out across very different political-economic contexts.

With regard to governance, policies and law, many Muslims and Muslim countries recognise the possibility that Islam has something important to say about the way society is to be ordered, governed, and regulated.

On young Muslims seeking to understand their place and make their way in a transformed world.

From colonial times through to the present day, large numbers of Javanese have left their homes to settle in other parts of Indonesia or much further afield. Frequently this dispersion was forced, often with traumatic results.

Scientists, including our faculty colleague Dr. Mike Field, studying an exceptionally well-preserved woolly rhinoceros have revealed details of what Britain's environment was like 42,000 years ago. The beast's remains were discovered in Staffordshire in 2002, buried alongside other preserved organisms…

This year is the 444th anniversary of Leiden University and we are celebrating this with the residents of the two cities in which the University has a presence: Leiden and The Hague. We are therefore holding an exhibition about the University and its connections to the city in the Atrium of City Hall…

Making extensive use of primary source materials this study contributes to existing scholarship in the field of eighteenth-century grammars and grammarians by providing an in-depth study of Ash’s Grammatical Institutes and its influence on other popular grammars for children.

Situated at the crossroads of the Indian and Pacific Oceans, the Spanish Philippines offer historians an intriguing middle ground of connected histories that raises fundamental new questions about conventional ethnic, regional and religious identities.

This dissertation examines what network in the human brain is involved in the perception of prosody and whether activity within this network is modulated by the personality trait alexithymia.

This PhD-thesis analyses the relationship between the parties’ choices in the CPB Netherlands Bureau for Economic Policy Analysis’ assessments of the election manifestos and coalition agreements over the period 1986-2017, and tries to explain this relationship.

The main aim of this project is to provide a full analysis of the actual influence of French on Dutch in The Netherlands during the period of 1500 - 1900.

This recently released book takes a critical view of conceptual issues and practical problems that inevitably emerge when ‘excellence’ takes center stage in science systems in the Global South. What is ‘excellent science’? And how to recognize and assess it? After decades of inquiry and debate there…

Aesthetic formations and cultural repertoires give meaning to our reality in ways that are never neutral. Focusing on the Middle East and North Africa (MENA) and its global interlocutors, this project brings together a team of scholars from Leiden University who bring in inter-disciplinary, inter-area…

Leiden University Centre for the Arts in Society (LUCAS) is dedicated to ground-breaking and interdisciplinary research dealing with the relations between culture and society.

Once you have decided on your field of research, you should start looking for a supervisor as early as possible.

This book explores how changes in the patterns of cooperation and conflict among states, regional actors and transnational non-state actors have affected the rise of emerging global powers and the suggested decline of US leadership. Scholars, students and policy practitioners who are interested in the…

Gold Matters: Sustainability Transformations in Artisanal and Small-scale Gold Mining: A Multi-Actor and Trans-Regional Perspective.This project explores whether a transformative approach towards sustainability can arise in Artisanal and Smallscale Gold Mining (ASGM).

An Introduction and Field Guide, Second and Revised Edition (15 December 2014)

An investigation into how racial stereotypes were created and used in the European Middle Ages.

The edited volume 'Arabic in context: celebrating 400 years of Arabic at Leiden University' edited by Ahmad Al-Jallad is out. The volume contains the contributions to the 2013 conference with the same title, held at Leiden University and was published as part of Brill's the Studies in Semitics Language…

Tracing Transitional English in the Twelfth Century

What is the iconography of propaganda specifically as it relates to the historical development of political ideologies in modern Egypt and how was/is this propaganda disseminated among creative fields such as cinema, art, monuments, architecture, and literature?

Nietzsche's famous notion 'amor fati' is often associated with the Stoic maxim to 'live in accordance with nature'; we have to fully accept our fates in order to attain happiness. But is happiness really what Nietzsche's 'amor fati' is about? And how to account for all the fiercely critical remarks…

This dissertation provides a description of the language Tadaksahak as it is spoken by the Idaksahak, a people group of about 30,000 living in the most eastern part of Mali and several isolated places in western Niger.

The research provides insight into disease behavior in both rural and semi-urban areas in Serengeti in Tanzania.

The project aims at highlighting and strengthening Dutch research into the diversity of the world’s languages from a historic and a cognitive perspective.

In recent years, and especially since the ‘Arab Spring’ of 2011, a growing body of research, media reporting, and scholarly literature has focused on the role of ‘Arab youth’ as the drivers of social and political movements across the Middle East and North Africa.

The study of language in change.

Intensive public debates have erupted about integration of immigrants in Europe. The influx of refugees from the middle east during the summer and autumn of 2015, the increasing visibility of immigrants throughout European societies, but also the widely publicized occurrences on New Year’s eve in Cologne…

The NVIC library is a public, academic reference library. Entrance is free—no membership needed—and offers access to our book collection and two reading rooms, which have a WiFi connection. It is not possible to borrow books from our library.

The Human Origins group at Leiden University studies the archaeology of hunter-gatherers, from the earliest stone tools in East Africa, more than three million years old, to the origin of sedentary societies towards the end of the last ice age.

When you apply for admission, you’ll be asked to submit several documents.