Zaanen

Landscape history, representation and identity in the Grenada islandscape

Big data promises to transform public decision-making for the better by making it more responsive to actual needs and policy effects. However, much recent work on big data in public decision-making assumes a rational view of decision-making, which has been much criticized in the public administration…

To an algebraic curve C over the complex numbers one can associate a non-negative integer g, the genus, as a measure of its complexity.

Journal of the Royal Anthropological Institute published Annemarie Samuels' article on the 2004 tsunami in the Indian Ocean. It's a detailed ethnographic account of the experiences of three Indonesian survivors.

With our research and teaching, we help make the world a better place. We join in the academic and public debate, and seek answers to economic and social issues – not just at the local and regional level but at the global one too.

Jochem van den Boogert defended his thesis on 18 November 2015

On 9 September 2020, Ruben de Graaff defended his thesis 'Concurrence in European Private Law'. The doctoral research was supervised by Prof. A.G. Castermans and Prof. S.C.G. Van den Bogaert.

This thesis attempts to establish a dialogue between the modern and the medieval traditions in logic, by means of ‘translations’ of the medieval logical theories into the modern framework of symbolic logic, i.e. formalizations.

On the 12th of May, Rita Barrera Virhuez-Eloranta successfully defended a doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Rita Barrera Virhuez-Eloranta on this achievement.

Tom Buitelaar is an Assistant Professor in the War, Peace & Justice programme of the Institute of Security and Global Affairs. This paper discusses four important challenges to the involvement of UN peace operations in international criminal justice: its effects on host state relations, peace and justice…

How do we experience electronic music? How does electronic music operate on perceptual, cognitive and affective levels? What are the common concepts activated in the listener’s mind when listening to electronic music? Why and how are these concepts activated?

Promotores: Prof.dr. H. van Veen & Prof.dr. W. de Boer (Wageningen University)

Irna Hofman defended her thesis on 10 January 2019.

The type-IV secretion system (T4SS) is a machinery able to transfer DNA and proteins between bacteria and in certain cases also to eukaryotic cells.

Continuous optimization is never easy: the exact solution is always a luxury demand and the theory of it is not always analytical and elegant.

This thesis aims at thinking through the ethical position of animals in a way that differs radically from the manner in which this ethical position is thought within contemporary animal rights discourse.

This dissertation explores Aristotle’s use of teleology as a principle of explanation, especially as it is used in the natural treatises.

On Wednesday 21 May Adrian Perkasa successfully defended a doctoral thesis and graduated.

What does the interspecies interpretation of the equality principle mean for the liberal democracy, and is it possible to provide for an appropriate legal and political position for animals without defying the classic-liberal principles of the liberal democratic state?

“JARAK: the commoditization of an alternative biofuel crop in Indonesia” was a research program from 2010-2014 in which researchers from Indonesia and the Netherlands collaborated.

The marine shipping industry is one of the strongest emitters of nitrogen oxides (NOx), a pollutant detrimental to ecology and human health. Over the last 20 years, the pollution produced by power plants, the industry sector, and cars has been decreasing.

We aim to unravel the molecular mechanisms involved in the transformation of eukaryotic cells by Agrobacterium.

Promotor: M.L. van Hecke

The figure of the barbarian has captivated the Western imagination from Greek antiquity to the present. Since the 1990s, the rhetoric of civilization versus barbarism has taken center stage in Western political rhetoric and the media. But how can the longevity and popularity of this opposition be accounted…

A fun challenge full of energy, teamwork and good vibes? On Saturday 21 June 2025, the Leiden Science Run was back!

Leiden University publishes an overview of the ancillary positions of its professors.

We strive to address the challenge of constructing a modeling language to write software which can take advantage of recent hardware developments (multicore, cloud) without compromising in its abstraction levels.

The mission in this division, headed by Laura Heitman, is to design and synthesize novel and better ligands for drug targets. Drug discovery is a lengthy but inspiring adventure. It is often an interplay between academic institutes and pharmaceutical industry, in which scientists at university develop…

On the 20th of June, Camil Staps successfully defended a doctoral thesis. Leiden University Centre for Linguistics congratulates Camil on this achievement!

The Copenhagen interpretation of quantum mechanics states that a measurement collapses a wavefunction onto an eigenstate of the corresponding measurement operator.

Performances of solo keyboard repertoire can sound more or less polyphonic depending on the performer’s use of divergence in expression.

Promotor: Prof.dr. J. Memelink

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 we study both the organisations, their working methods, their analysis techniques, as well as…

Green hydrogen is produced via a process called water electrolysis. During electrolysis water is split into oxygen and hydrogen.

This thesis investigates opinion dynamics on random graphs through the lens of the voter model, a classical interacting particle system used to describe how consensus emerges in networks.

Promotor: Prof.dr. H. J. A. Röttgering, Co-Promotor: Dr. M. Haverkorn

The programme International Civil and Commercial Law is multi-layered, with different levels of practice. Read more about the programme structure

Kuba funerary art from the Congo River Basin

The elementary excitations of magnets are called spin waves, and their corresponding quasi-particles are known as magnons. The rapidly growing field of Magnonics aims at using them as information carriers in a new generation of electronic devices, (almost) free of electric currents.

Iconografía, epigrafía e historia en los monumentos arqueológicos

A study of Dutch Fort at Galle, Sri Lanka

Throughout the twentieth century, scholars, artists and politicians have accused each other of “historicism.” But what exactly did this mean? Judging by existing scholarship, the answers varied enormously. Like many other “isms,” historicism could mean nearly everything, to the point of becoming mea…

This project investigates (1) how the strategies used in expressing epistemicity differ in their interpretation and use; (2) which strategies can combine and to what effects this leads; (3) what the expression of (various aspects of) epistemicity tell us about how the languages encode the speaker’s…

Are you considering to apply for the Creative Intelligence & Technology MSc program? Then make sure that you choose your study well-informed and that the program meets your expectations. These steps can help you to make a solid decision.

Single-layer graphene (SLG) has attracted considerable interest as a proton exchange membrane for direct methanol fuel cells (DMFCs), owing to its atomic thickness, mechanical robustness, and unique proton permeability.

Treatment and care for cancer patients is becoming increasingly advanced. For example, surgeons can now perform operations with much greater precision, and therapeutic vaccines are being developed to prompt the patient’s immune system to fight cancer. Work is also being done on better early diagnostics,…

CompaRe aims to conduct and stimulate research on comparative regional integration in Europa, Asia, Africa and Latin-America. To this end, CompaRe organizes conferences and workshops, and CompaRe members contribute to conferences, research papers, publications and reports on comparative regional…

This PhD project develops and applies a GIS procedure to use legacy survey data in settlement pattern analysis. As part of the research by the LERC project (NWO, Leiden University, KNIR), legacy data produced by surveys in central and southern Italy are examined in a comparative framework to investigate…