The Department of Constitutional and Administrative Law of Leiden University has published a collection of research essays on the separation of powers. This collection addresses the main question of whether the historically developed combination of concepts of democratic legitimacy and the separation…

Governing Cyberspace: Behavior, Power and Diplomacy is based on a selection of papers presented during The Hague Program for Cyber Norms' inaugural conference Novel Horizons: Responsible Behaviour in Cyberspace from 5-7 November 2018 in The Hague. The volume is edited by Dennis Broeders and Bibi van…

Proceedings of the Vth International Conference of Isis Studies, Boulogne-sur-Mer, October 13-15, 2011

Hegemony and World Order explores a key question for our tumultuous times of multiple global crises.

Alternative perspectives and sources of colonial literature haven’t received much attention before now. School books have long ignored the violence that accompanies colonialsm. How can we paint an honest picture?

Through a range of case studies spanning the post-Cold War period in Iraq, Moldova and Serbia, this book studies asymmetric conflicts where warring sides exhibit vast power differentials.

On 18 June 2019, Peter Kempees defended his thesis 'Hard power and the European Convention on Human Rights'. The doctoral research was supervised by Prof. R.A. Lawson and Prof. H. Duffy.

On Thursday 11 May 2017, Qiang Yu defended his doctoral thesis ‘Market Power and Competition Law in the Software Industry’. The supervisors of the research are Professor T.R. Ottervanger and Professor S.C.G. Van den Bogaert. A brief summary of his thesis is provided below.

For thousands of years, societies have fallen under the reign of a single leader, ruling as chief, king, or emperor. In this fascinating global history of medieval and early modern dynastic power, Jeroen Duindam charts the rise and fall of dynasties, the rituals of rulership, and the contested presence…

This collection of essays details the political life of one of the most prominent and gifted American statesmen of the twentieth century. From his early training in international law to his five terms in the US Senate, J. William Fulbright (1905--1995) had a profound influence on US foreign policy,…

Launched in 2017, The Importance and Power of Music in Our Society is an open online course, taught by Professor of Auditory Culture Marcel Cobussen and music philosopher Hafez Ismaïli M’hamdi and accessible to anyone with an internet connection.

The Case of the Painted Plaster

Can positive peer feedback break the cycle of negative self-relevant cognitive processes and reduce self-reported anxiety in early adolescents?

Organizations often announce their protest activities prior to their implementation to mobilize awareness, recruit supporters, and receive media attention. We are interested in the effectiveness of protest announcements—that is, under what conditions governments make concessions to avoid having an announced…

Bandura Witharana defended his thesis on 27 September 2018

On 12 September 2019, Michiel Rhoen defended his thesis 'Big Data, Big Risks, Big Power Shifts: Evaluating the General Data Protection Regulation as an instrument of risk control and power redistribution in the context of big data'. The doctoral research was supervised by Prof. G.J. Zwenne and Prof.…

In multi/many-core System-on-Chips (SoCs), the performance is almost linearly scaling with the number of processing elements.

This book explores how changes in the patterns of cooperation and conflict among states, regional actors and transnational non-state actors have affected the rise of emerging global powers and the suggested decline of US leadership. Scholars, students and policy practitioners who are interested in the…

Wijayanto defended his thesis on 17 January 2019

The smallness of Suriname, according to political scientist Wouter Veenendaal (Leiden University), strongly affects and shapes the nature of democracy in the country. On the one hand, clientelism ensures that members of each ethnic group included in power-sharing arrangements have access to state resources…

Online cursus The Importance and Power of Music in our Society

From William Shakespeare to Marilynne Robinson, A Literary History of Reconciliation is the first study to examine representations of interpersonal reconciliation in work of literature across a long-term period, from the early seventeenth century to the present day, focusing on how these representations…

This is a Special Issue of the peer-reviewed journal 'Social Sciences and Missions', which provides a forum for exploration of the social and political influence of Christian missions worldwide.

An investigation into how racial stereotypes were created and used in the European Middle Ages.

The transformation of the myriad of medieval kingdoms, principalities, local lordships, city-‘states’ and peasant ‘republics’ into ‘modern’ states, claiming some measure of sovereignty, remains one of the core themes of European history, because it gets down to the very root of the (idea on the) Europe…

The Low Frequency Array enables studies of low-frequency carbon radio recombination lines with unprecedented sensitivity, spectral and spatial resolution.

Promotor: Prof.dr. G.R. de Snoo, Co-promotores: Dr. ing. M.G. Vijver, J.P.M. Vink

This project explores the community of engineers in Sri Lanka and their role with regard to three domains of inquiry.

The Animated Image addresses the entire range of contexts in which images were described by Roman authors as being animated, as well as the accounts that Roman writers produced to explain the animation of inanimate matter.

This project aims to excavate and date the setting of the east gate of the Roman fortress of Udhruḥ. This will be compared with other Diocletianic military installations from the region. We also hope to retrieve another gate inscription which can shed light on the function and political embedding of…

When leaders punish subordinates, they often do this out of distrust. They are afraid of losing their position and use punishment as a deterrent. However, their punishments are not very effective, says social and organisational psychologist Marlon Mooijman. He will defend his PhD dissertation on 14…

A fair distribution of goods and services is the most important factor in justifying political power. This is the conclusion of Honorata Mazepus in her PhD dissertation 'What makes authorities legitimate in the eyes of citizens?' PhD defence September.

Have you had a busy week at work? If so, it’s better to take a walk in a natural environment than to go shopping in the city.

Light makes us flourish – in this respect we humans are just like a rose or an azalea. Light can also be used to treat people who are ill. In Leiden, Sylvestre Bonnet and Esther Habers are working – each in their own discipline – on new applications of light in a clinical context.

One of the baffling aspects of international power politics is the unexpectedly major influence exercised by particular small states. Professor of International Studies and Global History Isabelle Duijvesteijn discovered that peace missions and development aid help generate power. Inaugural lecture…

Have you ever wondered what law has accomplished in different countries and jurisdictions? If it even has accomplished anything at all, or that it are all promises of a better world? And have you ever thought about the role of law in the war on terror, in climate change, in emancipation and protection…

Language evolution, targeted drugs or archaeological interpretation. Researchers are making increasing use of supercomputers that can rapidly process large quantities of data. This is one reason why the University data centre will be extended and updated. ‘Datamining means we can get a better picture…

Brazil is one of the world's largest emerging economies, but more is needed if it is to use this economic power for all parts of Brazilian society. This will be the subject of Professor of Brazilian Studies Edmund Amann's inaugural lecture on 20 November.

Network-on-Chips are hardware that are used to communicate between different parts of a microchip. They have been around for over twenty years, but they still cannot be widely used in real life because they consume too much power. Computer scientist Peng Wang tried to find a solution for this power-inefficiency…

Social media are playing a key role in calling for resistance to the corona measures. Online, agreements are made about where and when people will gather to protest. The authorities are not always fully aware of what is happening and cannot just infiltrate, whereas civilians can often easily participate…

On Thursday 11 May 2017, Qiang Yu will defend his doctoral thesis ‘Market Power and Competition Law In the Software Industry’. The defence will start at 15.00 hrs, at the Academy Building of Leiden University, Rapenburg 73. The supervisors of the research are Professor T.R. Ottervanger and Professor…

Leiden chemists have created a new ultrathin membrane only one molecule thick. The membrane can produce a hundred times more power from seawater than the best membranes used today. The researchers have published their findings in Nature Nanotechnology.

On June 6th, The Hague Journal of Diplomacy launched its latest double special issue, “Debating Public Diplomacy: Now and Next”, in Washington DC. The seminar on the future of soft power practices, at the Pew Research Center known of its global opinion polls, took place against the backdrop of concerns…

This month Johan Christensen, assistant professor at the Institute of Public Administration, published his new book: ‘The Power of Economists within the State’. The book explores four countries, Denmark, Ireland, Norway and New Zealand and analyses why these similarly sized and wealthy countries have…

What do Byzantine fashion, mosaics, fortifications and menas ampullae have in common? Find out the answer at the second edition of a mini exhibition on Byzantine archaeology in the Van Steenis building.

Within 20 years, intelligent machines will play a major role in society. ‘Selfdriving cars will be 90% safer than human-driven cars and will change transportation globally,’ says artificial intelligence scientist Bart Selman of Cornell University. He gave the first Ada Lovelace lecture of the Leiden…

After receiving positive feedback from peers, socially anxious young people feel as confident about themselves as their non-anxious counterparts. 'These young people are then able to handle new social situations more confidently,’ says Leiden psychologist Anne Miers. Her research is published in the…

Global versus local, democracy versus dictatorship, tradition versus modernisation: such contrasts make it difficult for anthropologists. They look in detail at what really happens and can therefore add some nuance to blueprints and debates, is what Frank Pieke, Professor in Modern China Studies, will…