Supervisor: P.J.J. Hooykaas

This timely and engaging book examines the rise of populism across the globe. Combining insights from linguistics, argumentation theory, rhetoric, legal theory and political theory it offers a fully integrated characterization of the form and content of populist discourse.

Health Data Science Leiden University

Every year, the Global Transformations and Governance Challenges programme organises a conference that brings together academics and policy makers.

Our lab meetings are organized almost every month for researchers interested in empirical legal research.

Many researchers of the Faculty of Science are members of a research school related to their area of expertise. Research schools aim at collaboration of researchers from different faculties in the same university (interfaculty schools) or in different universities (interuniversity schools).

How can mentors and social workers foster the vocational identity of at-risk youth and improve their prospects?

On the 26th of September, Cosmas Rai Amenorvi successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Cosmas on this achievement!

With the advent of multicore processors and data centers, computer hardware has become increasingly parallel, allowing one to run multiple pieces of software at the same time on different machines. Coordination of these pieces is best expressed in a coordination language as an explicit interaction protocol…

In our current system, many tasks and roles are undervalued.

The theme of the anniversary, ‘Ahead of the times’, served as inspiration for the design of the lustrum logo.

Promotor: Jelle S. Kaastra Co-promotor: Jelle de Plaa

What contributes to the successes and failures of governance networks in small to medium-sized Western European host cities in attracting International Organizations?

Middle Paleolithic stone tool technology is one of the major sources of information about Neandertal behavior and adaptations. The Balkan Middle Paleolithic often remains outside of the major debates and interpretations of Neandertal behavior.

Particles are omnipresent in biopharmaceutical products. In protein-based therapeutics such particles are generally associated with impurities, either derived from the drug product itself (e.g. protein aggregates), or from extrinsic contaminations (e.g. cellulose fibers).

All life on earth contains DNA, which is used to store biological information. Organisms compact their DNA in order for it to fit inside their cell(s).

This article illustrates how the term 'dual use' has become associated with a broader dichotomy between ‘legitimate’ and ‘illegitimate’ purposes.

The heritage of Indigenous Peoples has long been researched and commented upon from the outside. This book adopts an innovative approach by engaging with the heritage of Indigenous Peoples from the ‘inside’.

We study the physics of a broad range of biological and soft materials

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?

Both within the university and also with outside partners, Leiden University participates in sustainability programmes. These initiatives hopefully contribute to a growing and more robust sustainability movement, locally and world wide.

PhD candidates carry out a programme of independent research, leading to a PhD thesis in typically 4 years.

Isotopic insights on human diet from the later stone age to Neolithic in Northwest Africa, Morocco

Aspergillus niger is an important industrial producer of organic acids and enzymes producing large amounts of spent fungal biomass.

Promotor: A.P. IJzerman

In Indigenous Ancestors and Healing Landscapes Jana Pešoutová presents new interpretations of current healing practices in Cuba and the Dominican Republic juxtaposed against the European colonization of the Caribbean after 1492.

IBL researchers use the facility to study a wide range of wildtype and transgenic plants, including Arabidopsis, tomato, barley, rice, lettuce, radish, ornamentals, and various trees. Research also involves the interaction between plants and various microorganisms and insects, providing valuable insights…

The lysosomal β-glucosidase named glucocerebrosidase (GCase) is a retaining β-glucosidase that hydrolyzes the glycosphingolipid glucosylceramide (GlcCer) to ceramide and glucose at acid pH.

Effects of maternal smoking, premature birth, intra-uterine growth retardation and asphyxia on child development.

Promotor: J. Schaye

PhD candidates carry out a programme of independent research and additional limited) course work, culminating in production of a PhD thesis in typically 4 years.

The first index to measure product safety, sustainability, and circularity, operationalising the EU’s (SSbD) framework.

On July 5th, Mulugeta Tarekegne Tsegaye succesfully defended his doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Mulugeta on this great result.

Unmanned aerial vehicles (UAVs), often referred to as drones, have become easy and inexpensive to buy, and it is generally expected that the use of drones by private individuals, businesses and public authorities will increase tremendously in the coming years. This raises questions as to what is technologically…

This study adds nuance to the empirical literature that interrogates the link between exposure to mass violence and post-conflict justice preferences.

Nietzsche says

Promotor: J.G.E.M. Fraaije, Co-Promotor: A. Kros

Fokelien Kootstra defended her thesis on 23 April 2019

Loneliness and social isolation have become a significant problem in contemporary Japan. The financial burden associated with an ageing population has severely constrained the ability of local authorities to address the problem. As a result, policymakers have sought cost‐effective methods of tackling…

This dissertation provides crucial but as yet missing empirical data on the tone accent opposition in the so-called

This doctoral thesis elaborates Langacker’s reference-point model by applying it to lexical semantics.

This article explores how to think about solidarity, considering the diverse stories, spaces, practices, bodies, and temporalities that shape a city.

Humans and songbirds learn their vocalizations early in life by exposure to the vocalizations of adult conspecifics. Often, better learning outcomes are achieved with live, social, tutors than with audio-only exposure to vocalizations.

On the 6th of November, Virginia Beavon Ham successfully defended her doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Virginia on this achievement.

The subject of this thesis, ‘Approach to Markov Operators on Spaces of Measures by Means of Equicontinuity’, combines an analytical and probabilistic approach to Markov operators.

On 15 February 2024, Alexandros Sarris defended the thesis 'International Law and Governance of the Arctic in an Era of Climate Change'. The doctoral research was supervised by Nico Schrijver and Freya Baetens.

The mission of Printeger is to enhance research integrity by promoting a research culture in which integrity is part and parcel of what it means to do excellent research, and not just an external and restrictive control system.

The dissertation by Max Kusters (PhD at ICLON) examined ‘teacher agency’: the capacity of university lecturers to actively and purposefully influence their teaching practices and work conditions.

On this page you will find all the house rules and conditions that apply to visiting the Old Observatory.