Although exposure therapy is the gold-standard treatment of posttraumatic stress-disorder (PTSD), only half of the patients adequately benefit from it. Based on recent insights into the mechanisms of extinction, this project examines strategies and techniques to improve exposure treatment outcome in…

Although rarely considered by the pharmaceutical industry or clinicians, 24-hour rhythms in physiology are a factor of potential influence on the pharmacokinetics and pharmacodynamics of drugs.

Promotor: C.J. ten Cate, Co-promotor: H.W. Slabbekoorn

This project aims to improve transparency in the distribution of research funding in the world, with a focus on global inequalities. Through an analysis of funding flows, the project will identify inequalities and opportunities for more appropriate and fairer allocation, highlighting patterns that perpetuate…

The focus of the described research in this thesis is on the oxidative stress response (Nrf2 pathway). The aim of the research presented in this thesis is to obtain more information concerning microRNAs which are involved in the Nrf2 pathway, to determine and evaluate the application of microRNAs for…

The STAP study examines the cost-effectiveness of Written Exposure Therapy (WET) for post-traumatic stress disorder (PTSD) symptoms in primary care settings.

Programs that aim to reduce symptoms of social anxiety in children generally include multiple components, such as exposure and cognitive restructuring. It is unknown if separate components yield positive intervention effects in children or whether a combination of components is required.

This is an Erasmus+ International Credit Mobility project of the Faculty of Science with the University of Pretoria.

This is an Erasmus+ International Credit Mobility project of Leiden University's Faculty of Science with University of Pretoria in South Africa.

Engineered nanomaterials (ENMs) are widely used, and nanotechnological innovations grow with rapid pace. Studies on nanotoxicology have demonstrated that chemical toxicology as well as particle toxicology should be accounted for in predicting the safety of ENMs.

GLOBALINT is a pioneering study of intelligence in the Global South. It asks ‘how do (un)democratic shifts in political governance impact intelligence services in contexts of violent conflict?

This is an Erasmus+ International Credit Mobility project of Leiden University’s Faculty of Science with the University of Pretoria.

This project aims to identify which aspects of exploring a novel environment produce beneficial effects on memory. The effects of novelty will be investigated across the lifespan, including children, adolescents and older adults.

In the South African context, certain iconic images have been a dominant source for public understandings of historical events. The emphasis given these images tends to overshadow the historical value of other more personal photographic sources – like studio or amateur photography. This project looks…

Through language and culture, history, anthropology, and sociology, we delve into the countries, populations, and societies of South and Southeast Asia. From this perspective, we address global issues such as migration, heritage, and colonialism.

On Thursday 7 November 2024 Vaudine England successfully defended a doctoral thesis and graduated.

LIAS aims to advance the globally conscious vision of area studies, both within and outside the academic community. Focusing on Asia and the Middle East, the institute is a meeting place of multiple fields of inquiry, theories and methods, historical periods, and areas.

The ties between Leiden University and South East Asia, especially Indonesia, have been strong for centuries.

The MA South Asian Studies at Leiden University is designed for students with an interest in studying South Asia from a range of perspectives including its history, literature, art, media, culture, religions, philosophy and philology.

Research how ‘custom’, ‘traditions’ and ‘heritages’ take on new meanings in the uplands of South and (mainland) Southeast Asia.

This project investigates the causes of the major archaeological change in the period of 40.000-20.000 BC in South Africa.

Volume 4 and 5 of the Leiden series 'Dutch Sources on South Asia' are now available, written by Markus Vink (vol.4) and Carolien Stolte (vol.5).

South and Southeast Asia, a region that includes India, Indonesia and seventeen other countries is one of the world’s most dynamic and diverse areas. Interested in speaking one of the region's major languages, and understanding its history, culture, and current affairs? Then this is the bachelor's programme…

How do videos, movies and documentaries dedicated to indigenous communities transform the media landscape of South Asia? Based on extensive original research, this book examines how in South Asia popular music videos, activist political clips, movies and documentaries about, by and for indigenous communities…

This monograph by Robert Ross provides a detailed narrative of the Kat River Settlement in the Eastern Cape of South Africa during the nineteenth century.

How can the emergence of primary justice systems be facilitated and furthered?

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 sheds new light on domestic forced migration by examining the experiences of American-born slave migrants from a comparative perspective.

In this book, Lydie Cabane examines the history of disaster management in South Africa.

Study information

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…

This book offers readers an alternative history of the origins of the discipline of International Relations.

On 10 november 2021, Carmel van Niekerk-Jacobs defended the thesis 'Realising the right to reproduce with assistance in South Africa'. The doctoral research was supervised by Prof. J.J. Sloth-Nielsen and Prof. T. Liefaard.

In this book, Vanessa Newby provides the first detailed examination of credibility’s essential place in peacekeeping.

As part of the Paris Agreement, countries across the world agreed to support developing countries to invest in climate mitigation and adaptation through a Green Climate Fund. However, developed countries have failed to meet funding commitments for the Green Climate Fund–the flagship program financing…

On Wednesday, 14 May 2025, Catherine O'Regan will deliver the annual Van Vollenhoven Lecture

On 25 January 2024 H.J. Pak successfully defended a doctoral thesis and graduated.

The main aim of this project is to reveal and unravel the invisible histories of the UN, transcending the dominant Western perspective to recover the historical agency of Global South actors. The research will investigate how the UN has both facilitated and limited their role in shaping global order…

This research deals with the royal houses of the Vijayanagara Empire and four of its successor states: Ikkeri, Tanjavur (under both the Nayaka and Bhonsle rulers), Madurai, and Ramnad. This study is thus concerned with dynastic politics and imperial legacies in south India between the 14th and 18th…

The Laiseang archiving project ensures the preservation of unique records of languages in the region which have been gathered by more than two dozen linguists at, and in collaboration with Dutch universities over the last 40 years.

The archaeological heritage of South America is facing increasing threats due to the expansion of agricultural activities, infrastructure expansion, illegal wood harvesting, and the current fire emergency plaguing the Amazon and other biomes of the continent.

Researchers using remote sensing technologies have characterized pre-Columbian regularly-shaped earthworks in forests in Central America and the Amazon. In tropical forested mountains in South America, two challenges arise when identifying archaeological sites through remote sensing. Firstly, sites…

Which intervention technique is more effective in reducing public speaking anxiety in children aged 9 – 12 years, exposure or restructuring cognitions?