Over the last decades, income inequality has increased globally. How do social policies affect this increasing trend? How do international trade and technological progress affect inequality? What is the profile of income inequality in China?

What are the mechanisms involved in the reconciliation of value conflicts and which interventions are capable of resolving such disputes?

In this thesis, we have studied the potential of the zebrafish larval model in studying the ECS, as a complementary model to the existing rodent models.

The project investigates how bilingual speakers navigate lexico-syntactic features, including grammatical gender, classifier systems, and the linear order of adjectives and nouns, across Spanish and Chinese in both unilingual and bilingual contexts.

Publication on the excavations at Roman fort Matilo in Leiden

Leiden University is famous for its library’s large collection of Oriental manuscripts. Part of this collection is a group of 104 Arabic documents written on papyrus and paper (Or. 8264 and 12885). These documents date from the 7th through 10th century CE and cover a wide range of subjects (private…

The topic of Historical Linguistics and Philology at LUCL is language change in its broadest sense.

Does Artifical Light at Night (ALAN) disrupt seasonal physiological and behavioral patterns in migrating freshwater fish?

Mechanical forces are known to play an important role in bacterial colonies. In this dissertation, we study the self-organization at various stages of growing bacterial colonies, and focus on the mechanical effects of cell growth.

From the smallest level of interaction among families and close friends, over the meso-level of schools, shops, churches, religious communities and companies, to the highest level of nation-states and international organisations: Language Policy and Planning (LPP) is everywhere!

Shared, general-purpose labs.

Accurately recognising others’ emotions is a fundamental social skill, relevant for navigating the social world from early childhood. Children’s ability to do represents a milestone in their socioemotional development and is associated with a number of important psychosocial outcomes. Many individual…

In this paper, Sibgatullina and Abbas aim to illuminate the complex connections between the European right-wing movements and Islam and discusses how the adoption of Muslim identity may function as a politically strategic opportunity for European conservative forces.

Promotor: G.R. de Snoo, Co-promotor: C.J.M. Musters

In September 2023 Social Justice Research, a journal from Springer Nature, published a ‘Special Issue on Veteran Reflections’. Eight ‘veterans’ analysed the current status of justice research and suggested new directions and refinements. Herman Steensma, guest member of the section Social, Economic…

The mycorrhizal symbiosis is among the most widespread species interactions on Earth⁠. This thesis focuses on orchid mycorrhiza, a unique mycorrhizal type that has caught scientists’ attention for centuries⁠.

This reflection for Critical Studies on Terrorism, explores two decades of the 'War of Terror' and what it means today.

Willem Peene defended his thesis on 12 January 2017

The aromatic infrared bands (AIBs) seen throughout the interstellar medium (ISM) are generally thought to be carried by polycyclic aromatic hydrocarbons (PAHs) and their nitrogen analogues (PANHs).

Archaeolandscapes International is an educational and scientific not-for-profit organisation with the objective to promote non-destructive prospecting methods for archaeological investigations.

The Europa Instituut is pleased to announce that on 21 November 2016 a new handbook “EU State Aids” (31 Chapters, 1500 pages) was published.

Promotor: E. Gittenberger, Co-promotor: B.W. Hoeksema

La naissance d’une thalassocratie considers the contribution of the Burgundian and Habsburg Netherlands to the rise of the Dutch Republic as a maritime power. In Braudelian fashion, its chapters follow three lines of research.

People who have taken antibiotics in the past three months pay more attention to negative facial expressions, according to research by postdoc Katerina Johnson and assistant professor Laura Steenbergen. This may explain how antibiotics increase the risk of developing depression.

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…

On 27 January 2022 Tjahjono Prasodjo successfully defended a doctoral thesis and graduated.

On 17 January 2024 Ying Wang successfully defended a doctoral thesis and graduated.

Just published:

When observing star-forming galaxies, we are not only seeing stellar light, but we also see how this interacts with galactic gas and dust. This thesis contains studies of the stellar, nebular and dust properties of low mass star-forming galaxies.

On 1 April 2020, Marc Broekema defended his thesis 'Cognitive Bias in the Judgment of Business Valuations and Valuators'. The doctoral research was supervised by Prof. J.I. van der Rest.

On Wednesday 5 February 2025 Milan Ismangil successfully defended a doctoral thesis and graduated.

Robotics, using social mechanisms like hormonal modulation, may accelerate our understanding of core sociality principles. By looking at social robotics through an evolutionary lens, we propose this field as a promising framework to investigate the fundamental bricks of sociality from an evolutionary…

From descriptive to physiological models that can predict oral absorption and elimination of CYP3A substrates across the pediatric age range.

In this article, Samir Negash, PhD candidate at the Institute of Public Administratation, discusses the discrepancy in European countries between the measured impact of immigration on the welfare state and how this impact is perceived by citizens.

University Library, Witte Singel 27, 2311 BG, Leiden

Bacteriophages, or phages for short, are the most abundant biological entity in nature. They shape bacterial communities and are a major driving force in bacterial evolution.

New Texts and Studies on Christian Nubian Culture

This collection considers such issues as the cognitive, linguistic and emotional benefits of speaking two languages, the perceptions, attitudes and issues relating to identity in minority language areas, and the number of grammatical aspects amongst those who speak these minority languages.

Biological and behavioural measurements of parent-child interactions.

Ineke Smit defended her thesis on 17 September 2019

Leiden University offers a world-class academic environment with access to unique resources and expert faculty.

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Presents a novel philosophical account of psychedelic experiences, arguing that they can be induced by means other than psychedelics — such as meditation and yoga.

The aim of this thesis is to expedite and ensure the systematic accuracy of clearance scaling from adults to paediatric patients, with a special focus on drugs undergoing hepatic metabolism.

Mathilde Mechling defended her thesis on 28 january 2020.

Measurement of brain activity by external electrodes (EEG).

What are the characteristics of a curriculum that stimulates the development of student agency in secondary education? How can teachers respond to different agency profiles of students, and what is the relationship with academic performance, well-being, and stress?

Research combining a conceptual and practical perspective within the field of teaching and learning second languages.