On the 30th of September Christine Ketel successfully defended a doctoral thesis and graduated.

Between 1600 and 1800 countless manuals appeared on the subject: the improvised bass part on the harpsichord, pianoforte or organ. Musician and researcher Kathryn Cok unravels the secrets of the Dutch basso continuo accompaniment for modern-day musicians.

The remains of Dutch East India Company forts are scattered throughout littoral Asia and Africa. But how important were the specific characteristics of European bastion-trace fortifications to early modern European expansion?

The project explores the impact of the clash between defenders of a rules-based order and international law on global governance and the future of legal systems.

On 31 January 2014 Professor Willem Heiser (Psychology, Statistics and Data Theory) was awarded the distinction of Knight in the Order of the Dutch Lion. After his farewell lecture he received the royal honour for his exceptional academic, social and administrative achievements.

The Schoof cabinet has several plans that are just not legally feasible. Yet they are often still forced through, knowing, or even hoping, that the courts will intervene. This is dangerous policy that in the long run even undermines trust in politics, the judiciary, and the law itself, argues Armin…

Linguist Willem Adelaar was appointed to Knight in the Order of the Dutch Lion on October 1st. On that very same day he celebrated his 43-year connection to Leiden University. Adelaar has an impressive track record in the field of indigenous, and often endangered, Amerindian languages.

Promotores: H.A. Udo De Haes, P.M. Brakefield

Subproject of

What are the main factors associated with the stranding of the two seal species? What are the factors influencing the prevalence of disease in the two species? Which human-related factors influence the populations of the two seal species?

Op dinsdag 11 februari 2020 verdedigde Clara van Dam haar proefschrift ‘Guidance documents of the European Commission in the Dutch legal order’.

How were Spanish commanders fighting in the Low Countries between 1567 and 1577 portrayed in Spanish and Dutch narrative sources during the Eighty Years War?

In the early modern period women played a prominent role in crime. At times they even made up half of all defendants. Female criminality was a typically urban phenomenon. Why do we find so many women before the Dutch criminal courts?

The aim of the Indonesian-Dutch Literature Collective (which is allied to the Society of Dutch Literature (MNL)) is to support research into the literature of and about the Dutch Indies, from the era of the Dutch East India Company to the present. Starting in 1986, the collective has published its own…

An overview of awards and prizes granted to our staff and students in 2017, as well as special appointments and royal distinctions.

Royal honour for Prof. Barend Mons. He was made a Knight in the Order of the Dutch Lion. He received this award from the mayor of the municipality of Waddinxveen, Evert Jan Nieuwenhuis.

Scattering of light in the presence of nano-structured materials, i.e. with features in the order of the wavelength of the light or smaller, reveals details of how light interacts with matter at the nanoscale.

Promotor: Prof.dr. F.S. de Boer

A remarkable population of short period transiting rocky exoplanets with equilibrium temperatures on the order of 2,000 K has recently been discovered.

How was the future United Nations Organization promoted to global publics during WW II?

Dr. Foks obtained this fellowship for the project “Can promotion of efferocytosis induce regression of atherosclerosis?”, in which she aims to identify novel targets to promote regression of atherosclerosis. This research grant allows her to initiate independent research for the next three years.

On 5 June 2018 Emile Beenakker defended her doctoral thesis ‘The implementation of international law in the national legal order: A legislative perspective’. The doctoral research was supervised by Professor W.J.M. Voermans.

An overview of awards and prizes granted to our staff and students in 2021, as well as special appointments at Leiden University and other institutions.

An overview of awards and prizes granted to our staff and students in 2019, as well as special appointments and royal distinctions.

Promotor: Prof.dr. T. Hankemeier, Prof.dr. J.C.T. Eijkel (Twente University)

James Shires has contributed a chapter to the proceedings of the 13th International Conference on Cyber Conflict (CyCon 2021), which gathers 20 articles from the law, technology and strategy domains.

Learning to cycle without a handbrake, saying sorry if you're late for a lecture and fathoming out the weird sounds of Dutch. Leiden's new international students get a crash course in Dutch culture during their introduction week.

Emeritus professor Victor Halberstadt has been honoured with the Cross of Honour of the Order of the House of Orange.

A sense of security plays an important role in the decision to contribute to nature conservation. Stacey Mac Donald conducted four years of research on the influence of social and political changes and the (post) colonial context on nature conservation in the Dutch Caribbean. On 17 May she will defend…

This volume explores the nature of ellipsis, the core phenomenon that results in various types of omission in sentences.

Electron microscopy has become an extremely important techniquein a wide variety of elds.

Optical projection tomography (OPT) is a tomographic 3D imaging technique used for specimens in the millimetre scale.

Our cantilevers have a low intrinsic damping rate: this enables us to measure with low noise, since damping is proportionate to noise. However, when the magnet is close to the surface of a sample we want to study, we measure a much higher effective damping rate. This is caused by magnetic interaction…

In this Ph.D. thesis we study the interaction of low energy electrons with thin materials, namely layered materials (graphene, hexagonal boron nitride, molybdenum disulfide) and organic films. At these low energies the quantum mechanical wavelength of the electron wave function is in the order of a…

If X is a locally compact Hausdorff space, then a representation of the complex C* algebra C_0(X) on a Hilbert space $H$ is given by a spectral measure that takes its values in the orthogonal projections on $H$.

Leiden has the most highly regarded China Studies programme in Europe. But how did this knowledge find its way specifically to Leiden? For his PhD research Koos Kuiper delved into the unique history of the start of this unique programme.

To what extent did the Netherlands grow rich from the Transatlantic slave trade? In his dissertation 'Walcherse Ketens', Gerhard de Kok looks at Vlissingen and Middelburg, the most important slave trade cities in the Netherlands during the second half of the 18th century. It turns out that, although…

Emergency services and governments were caught by surprise on Monday 24 June by the nationwide breakdown of the emergency phone number 112. The breakdown raises the following question: ‘Could this not have been prevented’?

On 6 April the Netherlands will vote on far-reaching cooperation with Ukraine. Referenda are exceptional in Dutch political history, according to Professor of Electoral Research Joop van Holsteijn.

On 1 February 2017 there was a hearing in the committee on European affairs of the second chamber of the Dutch Parliament on the issue of

On 11 November 2016, The Hague Law Labs and the department of Constitutional and Administrative Law, in collaboration with the Italian Association for European and Comparative Law, will organise ‘The Dutch Constitution Beyond 200: tradition and innovation in a multilevel legal order'.

As a result of the refugee crisis and the terrorist attacks in Paris and Brussels, the Royal Netherlands Marechaussee (RNM) is stepping up immigration controls in the Dutch borderlands. These measures are part of the so-called Mobile Security Monitor (in Dutch: Mobiel Toezicht Veiligheid), “Schengen…

The acquisition and administration of the possessions of the “Teutonic House” in Utrecht, and its dependencies, in the Middle Ages until c.1600.

As a result of the refugee crisis and the terrorist attacks in Paris and Brussels, the Royal Netherlands Marechaussee (RNM) is stepping up immigration controls in the Dutch borderlands. These measures are part of the so-called Mobile Security Monitor (in Dutch: Mobiel Toezicht Veiligheid), “Schengen…

On 26 April Professor of Experimental Physics Jan van Ruitenbeek was made a Knight in the Order of the Lion of the Netherlands. He received the decoration from mayor Emile Jaensch in Oegstgeest, where he lives. Van Ruitenbeek received the honour for his services to physics.

At his farewell party on 25 August 2018, Erik-Jan Zürcher, professor and specialist on Turkey, was appointed Knight in the Order of the Dutch Lion. He was presented with the award by Leiden's Deputy Mayor Martine Leewis.

eLaw in collaboration with the TU Delft Design for Values Institute finalized the research on “Artificial Intelligence and Ethics at the Dutch Police” by providing the whitepaper highlighting requirements for the responsible use of AI at the Police and the long-term research strategy.

Italian historiographers in the 16th and 17th centuries wrote remarkably often about the Dutch Revolt, better known as the Eighty Years' War (1568-1648). Their works influenced public opinion both in Italy and in the Netherlands. This is the conclusion reached by historian Cees Reijner in his dissertation.…