Labbe

Promotor: E. Bouwman, Co-promotor: S. Bonnet

Promotores: Prof.dr. M. Franx, Prof.dr. M. Kriek (Univ. of California at Berkeley)

The project examines the political conflict in the Red River Valley of Louisiana between the majority-black Republican Party and the overwhelmingly white Democratic Party by studying the composition and actions of each party.

Expats in the Netherlands receive a much warmer reception than other migrants, Leiden University's Aniek Smit has discovered. ‘But municipalities need to pay more attention to the differences between expats and the effects of their presence on other residents.' PhD defence 25 January.

During the last SIAM Applied Dynamical Systems (Snowbird) conference Eric Siero, PhD student of Prof. dr. Arjen Doelman, has won the Red Sock Award.

The increasing Technological opportunities of Virtual Reality (VR) increasingly resemble the real world (and more). In Japan VR holidays are very popular and VR porn is emerging.

Worldwide, countries are barely prepared for major borderless crises such as extreme natural disasters or other unexpected calamities that destabilise society, Professor of Political Science, Arjen Boin, warns. In his inaugural address on 23 October he makes some recommendations.

On Thursday, 17 September 2015, the latest project of the Leiden International Humanitarian Law Clinic (the IHL Clinic) on ‘Principles of International Humanitarian Law applied to Cyber Warfare’ was concluded and presented to the Netherlands Red Cross.

Mark Klaassen presenter at the Reuniting Families: From Access to Integration event organized by the EU office of the Red Cross in Brussels.

What are the manifestations, antecedents and consequences of the cognitive uncertainty experiences of social care professionals?

How and under what conditions Dutch primary school principals' managerial networking activities affect the performance of their school

PhD defence

The high prevalence of pure red cell aplasia in Thailand has been associated with the sharp increase in number of recombinant human erythropoietin (rhEPO) copy products, based on a classical generic regulatory pathway, which have entered the market.

The Hazelhoff Centre for Financial Law team regularly publishes in both Dutch and international academic journals and book series.

This thesis describes how different colours of light affect various aspects of the growth and development of Arabidopsis and tomato plants⁠.

Politically speaking, the Frisian coastal area constitutes a special case in late medieval Europe since it was not subject to an overlord as it withstood feudalization in the 13th century. Its many sub regions, which were dominated by elites of small noblemen and freeholders, long time succeeded in…

PhD defence

Metal-containing molecules combine geometrical features and a reactivity that are inherently different from that of organic molecules. My research focuses on light-activatable metal-based anticancer drugs and metal-functionalized liposomes. Light is a very selective way to activate photosensitive drugs…

Promotor: Prof.dr. M.K. Richardson

On the 28th of September Go Hirasawa successfully defended a doctoral thesis and graduated.

At Leiden University College (LUC), engagement with international societal partners occurs through research, education, and internships, fostering mutually beneficial collaborations with NGOs, public service institutions, and international counterparts.

Microbial rhodopsins are photosensitive pigments implemented in the growth and adaptation of a large population of microorganisms.

Career prospects are very important these days. The programme European and International Human Rights law provides you knowledge in human rights settings.

It is important for social animals to be able to recognise one another quickly. Humans are able to recognise each other immediately from their faces. Faces are also important for chimpanzees, but a new study by neuropsychologist Mariska Kret in PLOS ONE shows that the animals' buttocks also play a…

We develop open micro cavities to trap light in small volumes and thereby increase the interaction with intra-cavity emitters. Important aspects in this development are the optical penetration in the mirrors, coupling between optical modes, and scattering and clipping losses.

Ongoing microwear analysis of the flint artefacts from the Funnelbeaker period suggests that flint had a pivotal role in the representation and structuration of the cosmological order of Funnelbeaker society.

On 3 October, Leiden University was holding a Science Fair packed with stalls showcasing discoveries and scientific games.

The main goal of this thesis is to achieve advanced control of binding properties in bis-pyrrolic and macrocyclic pyrrolic receptors by light.

The Pioneer Years of the National Museum of Antiquities in Leiden, 1818-1840

Fighting for the faith, caring for the sick, and praying for the soul of their benefactors were the main tasks of the military orders, who since the time of the crusades were well represented in the Netherlands in the Middle Ages, including the Frisian lands. Especially the Hospitallers and the Teutonic…

Historical geo data are gaining in importance. Provided that they are exactly geo referenced, they can be stored into a GIS and thus be combined with all kinds of maps (topographical, pedological, etc.) and datasets. This makes it possible to analyze historical developments in space and time on a detailed…

This is the application procedure for the physics summer school of Leiden University. It is part of the Leiden Institute of Physics (LION). Interested bachelor (BSc) students can apply through the online form, where they need to upload several documents. The application deadline is 25 May 2025.

One of the recurring points of discussion within the Criminal Justice research programme is the question of what behaviour should or should not fall within the scope of criminal law. This research theme is examined from a legal-dogmatic and social-scientific perspective.

Would you like to do something for the victims of the war in Ukraine? Several actions have been set up to help the people in Ukraine. Read below what you can do.

What is the effect of pesticides, fertilizers or plastic on water quality? And how do wind and rain affect the data? These are just some of the things that Leiden environmental scientists study in the 32 ditches of the Living Lab.

European product safety law is one of the focal points of internal market legislation.

Since my master's thesis on the landed property of the Frisian monasteries in the Middle Ages I am highly interested in the do ut des-aspects of the relation between religious houses and the lay world. Key words here are: property, power, patronage and the role of religious institutions in the 'salvation…

The goal of the research presented in this thesis was to explore the chemical space of ruthenium(II) photocages, investigate their ability to host potent chemotherapy drugs, and to red shift the activation wavelength of the most promising PACT candidates to conduct biological studies.

Cardiovascular diseases (CVDs) are the leading global cause of mortality. Endothelial dysfunction, an early reversible stage of CVD development, is marked by decreased nitric oxide production linked to Ca2+ influx in endothelial cells.

How are the epidermal lipid pathways involved in health and disease.

This thesis is a (biased) journey through very different topics in astrophysics: quasars and new populations of active galactic nuclei, gravitational waves from merging black holes, and protoplanetary discs around young stars.

National parochialism is the tendency to cooperate more with ingroup than outgroup members. Angelo Romano, Matthias Sutter, James Liu, Toshio Yamagishi & Daniel Balliet studied national parochialism across different nations and conclude in their publication in Nature Communications that it is a ubiquitous…

Behavioral and neural mechanisms underlying risky decision-making in adolescents

The Leiden Center for the Study of Ancient Religions (L*CeSAR) facilitates the integration of scholarly expertise and resources, promoting interdisciplinary collaboration and intellectual exchange among researchers of ancient religions, both within Leiden University and in the broader academic commu…