This project aims to explore and examine the factors that impact upon the efficacy of information disclosure duties pertaining to customer data use in online business.

The experiments described in this thesis employ local lentiviral knockdowns in brain areas of female zebra finches followed by behavioural assays consisting of preference and Go/Nogo tasks.

In 2008, the intervention ‘Denken + Doen = Durven’ (Think + Do = Dare) was developed in the Netherlands (Bögels, 2008). This is a cognitive behavioral therapy program for children and young people between the age of 8 to 18, diagnosed with an anxiety disorder. The intervention is given by a professional,…

Prematurely born neonates require, amongst others, pharmaceutical therapy. Dosing guidelines for these therapies are often based on data from term born neonates or older infants, while these are not necessarily similar to prematurely born neonates.

What issues arise in the changing landscape of privacy, identity and data protection?

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…

Developmental and Educational psychology is concerned with the developmental course and dynamics of cognition, self-regulation, and emotional competence, and the implications for educational and clinical practice.

Each month, we will interview a student or staff member from Leiden University about their work or studies in relation to sustainability.

Since the Second World War, intelligence and security services have played an important role in policy and decision making, particularly with regards to a state’s national security. In this minor programme you study both the organisations, their working methods, their analysis techniques, as well as…

This dissertation investigates the grammar of Makhuwa-Enahara, a Bantu language spoken in the north of Mozambique. The information structure is an influential factor in this language, determining the word order and the use of special conjugations known as conjoint and disjoint verb forms.

This study tests whether behavioural problems at a young age are related to early reading and mathematics development.

The article investigates the origins of Indo-European languages in Asia by 65 coupling ancient genomics to archaeology and linguistics.

In this dissertation, electrophysiological (EEG) and behavioural measures are used to investigate how allophonic tonal variants and sub-phonemic features are processed during Mandarin and Dutch speech production, visual processing of written words and reading aloud.

Promotor: F.S. de Boer Co-promotor: P. T. de Gouw

This PhD project investigates the different uses of Mandarin

On Friday, the 24th of April 2015, the Junius Symposium voor Jonge Oudgermanisten, a symposium for junior researchers in the field of language, culture and history of the (early) medieval Germanic tribes, was organized by Peter Alexander Kerkhof (LUCL) and Thijs Porck (LUCAS).

This thesis investigates the connection between tonal realization and tone change (tone sandhi) in Wenzhou Chinese, and whether and how such a connection is conditioned by prosodic structure and focus marking.

Online presentation

-

-

The Vici project Through the Hands of Signers invites everyone to participate in its kick-off symposium on the History of Sign Language Emergence, Transmission, and Change on July 10 2026.

This special issue explores social meaning from the perspective of current theories in pragmatics.

This project employs a systematic experimental approach to examine the interaction of these two hitherto independent lines of research (tone sandhi and focus realization) in six dialects of Chinese, which lie on a continuum between dialects with dense tonal distributions and sparser distributions. In…

The Swahili coast has a long-standing history of transoceanic Islamic connections dating back to the 25th century. Yet, print, has changed the world – not only ours. This project unravels unique forms and archives of intellectual history emerging from within South-South connections. In East Africa Indian…

Our mission is to recognise and treat stress and anxiety in children as early as possible, by connecting scientific research, clinical practice and education.

This dissertation presents the first full grammatical description of bago ts'amakkilo ('mouth of the Ts'amakko'), or simply Ts'amakko. It is a Cushitic language, spoken in Southwest Ethiopia and belongs to the Dullay cluster of Lowland East Cushitic. The number of speakers is about 10,000. The data…

In this dissertation, a comprehensive portrait of the American-born Quaker Lindley Murray (1745–1826) is painted and the influence of Murray’s Quakerism on his language use is investigated by analyzing a corpus of 262 of his unpublished private letters.

Vocal learning is a trait shared by songbirds and humans. It is also a trait that is restricted by the brain rather than by a species' vocal apparatus. In this dissertation, functional MRI is employed in both species in order to explore potential common neural mechanisms underlying the ability to develop…

The solar system was formed approximately 4.56 billion years ago. Despite the numerous theories that have been developed over the years, the formation and evolution of the solar system still remain unclear.

The Institute of Political Science is a vibrant department with nearly 70 academic staff in Leiden and nearby The Hague.

Implementing all kinds of change and introducing new structures, far-reaching rules and administrative systems may sometimes seem to distract an organisation from its purpose. Furthermore, there is growing recognition of the need of staff of public organisations to find more meaning in their work: the…

Essays dedicated to Frans Wiggermann

On 11 June 2020, Sabine Witting defended her thesis 'Child Sexual Abuse in the Digital Era: Rethinking Legal Frameworks and Transnational Law Enforcement Collaboration'. The doctoral research was supervised by Prof. J.J. Sloth-Nielsen and Prof. S. van der Hof.

The thesis addresses the long-term dynamical evolution of hierarchical multiple systems.

Open up a world of opportunities with your master's degree in Archaeology from Leiden University!

Circumstellar discs are the reservoirs of gas and dust that surround young stars and have the potential to become planetary systems.

On 23 April, Sheila Haji defended the thesis 'The shadow side of positive organizational change: practitioners’ experience navigating dialectical tensions in appreciative inquiry'. The doctoral research was supervised by Jan Adriaanse, Mark Dechesne and Renee Heath.

In the 19th century, Old English poems were claimed as cultural heritage by various non-Anglophone nations, including Scandinavians, Germans and Dutch. These competing nationalistic, cultural appropriations happened against the backdrop of a growing interest in early medieval English language and literature…

Festival

This project will study the cultural meaning of the mythological figure of Orestes within the ancient Greek imagination, as it emerges from various literary sources from the archaic and classical periods.