The principle aim of the project is to study the genesis and the quantitative properties of the Early Roman urban network of the Balkan and the Danube provinces.

When do fire making tools appear in prehistory, and how might the use of these tools manifest in the archaeological record?

Promotor: Prof.dr. G.P. van Wezel

Supply risks are not new. But the aggravation of power conflicts on the international stage coupled with global shifts towards energy transition and digitalization has triggered the next supply risk research era.

In-use stocks of products can be considered as intermediaries between human needs and the physical world.

Sara Brandellero, Assistant Professor in Brazilian Studies (LUCAS), is a founding member of the newly launched European Network of Brazilianists working in Cultural Analysis/Rede Europeia de Brasilianistas de Análise Cultural – REBRAC. Network launched at international conference at the University of…

Conference

While phenomenology and Yogacara Buddhism are both known for their investigations of consciousness, there exists a core tension between them: phenomenology affirms the existence of essence, whereas Yogacara Buddhism argues that everything is empty of essence (svabhava). How is constructive cultural…

This dissertation the role of the English dissenting minister Joseph Priestley (1733-1804) as a grammarian is studied.

Taking as a point of departure the Italian American community in Boston and its process of collective remembrance surrounding Saint Anthony’s Feast, we address the limits and potential of montage.

On the 23d of May, Sanne Rotmeijer successfully defended a doctoral thesis. The Leiden University Centre for Linguistics congratulates Sanne on this achievement!

Promotor: Prof.dr. E.F. Smets

Identifying the gaps in the legal framework for EU activities in the maritime security domain, and specifically in the areas of combating piracy, human smuggling or trafficking and drug trafficking.

Which challenges exist for girls to effectuate their right to education and specifically getting access to education?

There are about 35,000 students with chronic illnesses in the Netherlands. If they cannot receive education in the classroom, they may be able to do so from home or a hospital with hybrid education. The question in this study is: how can interaction with the teacher and fellow students be promoted?

This project aims to analyze and increase student motivation and achievement during the first three years of secondary school with an intervention that focuses on development of students’ talents.

When a star is born in our Galaxy, it is quite likely that it has formed within a massive cluster, which hosts numerous high-mass stars bathing their lower mass neighbours in UV radiation.

This thesis investigated the extent to which participation of school students in decision-making processes can be achieved, including through participatory action research (PAR) in teacher education.

Bert Fraussen and Valérie Pattyn theoretically contribute to the existing literature on policy advice by drawing inspiration from niche theory.

Every time we pay for something, our money moves through global technical systems that connect the world economy. These systems are convenient, but they also expose users to Western sanctions, prompting countries like Russia to look for alternative financial infrastructure.

This project investigates ethnographically how patients, their relatives, and healthcare professionals in the Netherlands make decisions about end-of-life care. We study the new dilemmas around what constitutes

This book considers the porous relationship between legality and illegality in Brazil, a country that presages political and societal changes in hitherto unprecedented dimensions.

As Bolivia reels from the collapse of the government in November 2019, a wave of social protests, and now the impact of Covid-19, this book asks: where next for Bolivia?

On Wednesday 3 September 2025 Yu Ai successfully defended a doctoral thesis and graduated.

This dissertation focuses on investigating the public communication around quantum science and technology that may affect public engagement.

Decarbonizing the building stock is critical for realizing the climate-neutral target for the Netherlands.

Prof. Ottervanger, professor emeritus of European Law and Dutch Competition Law has analysed 36 final court judgments concerning decisions by the Netherlands Authority for Consumers & Markets (ACM) in competition cases. The report was part of the review of the ACM that was conducted by the Dutch Ministry…

Why use Google Maps when you can also calculate your bike route based on your own data. Statistician and cyclist Alexander Dürre sees statistics in everything around him. He analyses data of soccer games and calculates the possible winners of cycling races. ‘When I have too much time, I apply statistics…

‘Politicians act only in their own interests. The common man does not interest them at all.’ And, ‘The debate in parliament was a sorry sight and demonstrated incompetence.’ These are two pieces of criticism that you might read in tomorrow’s newspaper. But they were actually in the papers at the time…

This book, written by two representatives of Leiden Law School, describes the framework of the European Insolvency Regulation (recast) (‘EIR Recast’), in force since June 2017.

On November 29, Stéphanie van der Pas receives the ASML Graduation Prize for Mathematics at the Royal Holland Society of Sciences (KHMW) in Haarlem. She proved that a new method to choose a research model works better than the usual standard method.

Can students solve cold cases? In the elective courses ‘Introduction to Cold Cases’ and ‘Cold Cases’, theory is combined with practice and students investigate actual police files. 'Hopefully, we can add a fresh perspective to investigations.'

To answer questions that look beyond individual entities, network science studies the interactions taking place in complex systems. These complex systems can often have temporal information on when an interaction occurs.

The demand for neodymium-iron-boron (NdFeB) magnets is rapidly growing, while the neodymium supply chain is under pressure. Recycling can alleviate these issues. This thesis investigates the potential for deploying novel magnet recycling technologies and their environmental consequences.

In astronomy, the interpration of observations and measurements plays a crucial role: we rely purely and fundamentally on the information that reaches us as observers. And 80% of all matter in the universe is undetectable directly.

The routine assumption that Upper Palaeolithic early modern humans in Europe were regular fire users who produced fire at will has never been tested against the archaeological record. Utilizing literature, database and microwear analytical approaches, this project seeks to establish the role and forms…

What does the excavated material tell us about the continuation and/or change of urban life during the transitional phrases from Antiquity to the Middle Ages on Crete and in the eastern Mediterranean more generally?

How do biological cells join forces to form a structure? In her PhD research, Daphne Nesenberend uses mathematics to show how forces and cooperation between cells create structure – and how simulations and experiments can reinforce each other.

We live in a data-drenched society awash with numbers. An inhabitant of the democratic polis of Athens (5th and 4th centuries B.C.E.) increasingly found himself surrounded by numerical data. This project aims to analyze the communicative functions and the political meaning(s) ascribed to these public…

Which adolescents are more at risk of developing social anxiety disorder later in life?

Roderick Bouman is collection manager of the Leiden Hortus botanicus. He keeps track of which plants there are in the garden, where they come from and makes sure visitors can find the right information about them. ‘We are like a regular museum,’ says Bouman. ‘Except that our objects are alive. That…

The midterm elections in the United States will be a vote of (no) confidence in president Trump and his divisive leadership style, says Brendan Carroll, assistant professor Public Administration. In this blog he explains why voter turnout can be a decisive factor.