The van Exter group has an extensive history of prior research in classical and quantum optics. As former part of the group of Han Woerdman, we have studied topics as diverse as:

To address the relevance of Christianity to the ideological negotiations with the officially established authority, this research will be conducted by asking how the history enthusiasts negotiate the Christianity-related ideology through reconstructing the Christian past and reproducing religious histories…

The research of the Van Eck Group focusses on 3 interconnected research lines: 1) Identification and therapeutic targeting of key pathways/regulators in macrophages essential for prevention of atherosclerotic lesion development or stimulation of regression of existing lesions, 2) Atherosclerosis as…

Selected publications of the Cardiovascular and Metabolic Therapeutics group.

Neural networks have a wide range of applications. In Leiden, psychologists use them to build robot brains, whereas archaeologists use them to hunt for prehistoric graves.

Pianist and docARTES researcher Bobby Mitchell has been awarded the audience prize at the finale of the 5th Young Pianists Festival in Amsterdam, last November. The great majority of the audience voted for him at the finale, of which the other two candidates were Sofia Vasjeroek and Rosalia Gómes La…

Leiden physicist Anne Meeussen has been nominated for the title of New Scientist Science Talent. She will be up against 14 young scientists from other Dutch and Belgian universities. The polls are already open!

A common notion is that autistic people feel no need for social contact, that they are socially clumsy and show little prosocial behavior. But is that image correct? According to developmental psychologist Carolien Rieffe, an important goal of Autism Awareness Week (March 28 - April 5) is to remove…

We have to do all we can to stop climate change. But: the Earth is more resilient than we thought. That is the surprising conclusion of an international team of ecologists and mathematicians, which included Leiden mathematician Arjen Doelman. The team discovered that ecosystems can still avoid tipping…

Proactive zebrafish appear to have a much stronger wake-sleep rhythm than reactive fish. In the most reactive fish, rhythmicity appears to be lacking completely. This is shown with research by Leiden biologists, published in December 2018 in the journal BMC Biology.

A certain type of oil droplets changes shape when cooled and shrunk: from spherical through icosahedral to flat hexagonal. Two competing theories couldn't fully explain this, but now, a Physical Review Letter by Ireth García-Aguilar and Luca Giomi solves the mystery.

Leiden physicists and chemists have managed to bring two graphene layers so close together that an electric current spontaneously jumps across. In the future this could enable scientists to study the edges of graphene and use them for sequencing DNA with a precision beyond existing technologies. Publication…

Lodewijk Petram, author of the book 'The World's First Stock Exchange', discussed the rise of the Amsterdam stock exchange in the 17th century in the ninth Hazelhoff Guest Lecture.

The oldest university in the Netherlands was founded on 8 February 1575 in the Pieterskerk in Leiden. This was at the time of the Eighty Years’ War with the uprising of the northern provinces against domination by the Spanish.

This is an Erasmus+ International Credit Mobility project of the Faculty of Humanities with two partners in Uzbekistan.

All players on the world stage operate strategically in order to safeguard their interests. Political scientists at Leiden University cast light on this volatile interplay of forces. Their research helps voters, NGOs, governments and international organizations make smart choices in this complex and…

Whether your interests are in international justice, world politics, diversity, integration, health, the environment, climate change, alternative energy strategies, decision-making processes or human security, there is a major at LUC for you!

Exponential population growth and rapid urbanisation are prompting the development of gigantic African metropolises that must be supplied with resources such as food, water and energy. This creates economic opportunities, drives migration and presents political challenges. Researchers from Leiden combine…

The project aims at contributing to the safeguarding of Palestinian cultural heritage and the enhancement of economic situation through tourism development, by presenting and managing one of the most important archaeological resources, the archaeological site of Tell Balata.

This is an Erasmus+ International Credit Mobility project of the Faculty of Humanities with three partners in Uzbekistan.

In the Global Conflict in the Modern Era specialisation of International Relations you will explore the security measures that have been instituted locally, regionally and globally in the modern world.

Sergei Boeke has once again proven that there are more roads than one that lead to Rome with his PhD research into al Qaeda in the Islamic Maghreb. It is both the core point of his conclusions as well as the leitmotiv for his approach. Boeke’s dissertation is comprised of five academic articles that…

Charles Melville, Professor of Persian History at the University of Cambridge and Fellow of Pembroke College, will be the Central Asia Visiting Professor from 20 November until 28 November 2017. Charles Melville will deliver a guest lecture on Thursday, 23 November, co-organized with LUCIS, and a masterclass…

In the course of 2020 the Faculty of Archaeology was bolstered by some new staff members. Due to the coronavirus situation, sadly, this went for a large part unnoticed. In a series of interviews we are catching up, giving the floor to our new colleagues. We kick off with Dr Tuna Kalayci, who joined…

The Mesoamerican research group 'Time in Intercultural Context: the indigenous calendars of Mexico and Guatemala' funded by the ERC and directed by prof. dr. Maarten Jansen, met up in Mexico from the 13th until the 23rd of February for a field seminar in the states of Tlaxcala and Hidalgo.

In the course of 2020 the Faculty of Archaeology was bolstered by some new staff members. Due to the coronavirus situation, sadly, this went for a large part unnoticed. In a series of interviews we are catching up, giving the floor to our new colleagues. We kick off with Dr Tuna Kalayci, who joined…

The Royal Netherlands Academy of Sciences (KNAW) has awarded an Academy Professorship to Ewine van Dishoeck, Professor of Molecular Astrophysics at Leiden University.

PhD student Robbin Bastiaansen applies mathematics to get insight in practical problems. By comparing mathematical models with developments in existing ecosystems, he hopes to demystify the process of desertification. His research has been published in Proceedings of the National Academy of Sciences…

In the future, computers will be able to base their decisions on intuition. Professor Jaap van den Herik, director of the Leiden Centre of Data Science, posed this statement today in his Valedictory Address at Tilburg University.

Religions involve belief in the unbelievable: in evil spirits causing disease, in souls surviving death, and in gods punishing wrongdoers and blessing the just. Cognitive studies suggest that humans are predisposed to speculate about fate and divine agency, but support from so-called ‘plausibility structures’…

The out of control ‘Project X’ event in Haren, hooligans who arrange to meet up to fight and beach riots at the Hoek van Holland: group violence is increasingly hitting the headlines. Are those who took part seasoned criminals? And what characteristics do group offenders have? PhD defence on 29 September…

A better environment starts at the Living Lab. Leiden Scientists investigate the effect of chemical compounds on biodiversity in 38 natural ditches. The official opening took place on 8 June.

‘Islam and Muslims are not something that happened to Europe; they are part of Europe. In fact, Islam is one the biggest constants in European history,’ argues Professor Maurits Berger in the new eight-part History of Islam in Europe podcast series of the Leiden University Faculty of Humanities.

Jelle van Buuren, Assistant Professor at the Institute of Security and Global Affairs, discusses the death of Al-Baghdadi and whether this could also mean the end of IS.

Marina Calculli participated in a panel discussion on 'Lebanon: the never-ending crisis'

In the week of 14 to 18 January the Lorentz workshop 'Intersecting Worlds. The Interplay of Cultures and Technology' took place at the Lorentz Center in Leiden. Attracting many scholars from across the world, the workshop explored the transformations and responses of indigenous societies around the…

Sociale Wetenschappen

Every month a member of the Institute for History tells about a book that inspired him or her. Afterwards, the pen is passed on to another colleague. This month dr. Meike de Goede tells about the book 'Between Tides' by Valentin Mudimbe. The novel, little known beyond the circles of Africanists and…

How can we understand the drum-set – and thus drummer – as technological? How have technological developments affected change in drum-set performance and drum-set construction? Are the relationships between new technologies and the drummer symbiotic, or one way? To what extent are instruments and (reactive)…

This abrupt climate change of 8200 years ago (the so-called 8.2k calBP climate event) has received wide attention among natural scientists, also because of today's rapid climate changes and their impact on our own society. The archaeological implications, however, have not been investigated so far.…

Leiden physicists have been awarded 1.5 million euros for developing a hybrid microscope that provided nanometer-resolution. 'The idea is to combine the resolution of electron microscopy with the pros of optical microscopes.'

Researcher Gezinus Wolters regularly has to determine in court whether a witness statement is reliable. How does he go about his work?

Graphene, the ultra-thin wonder material just a single carbon atom in thickness, holds the promise of such impressive applications as wear-resistant, friction-free coatings. But first manufacturers have to be able to produce large sheets of graphene under precisely controlled conditions. Dirk van Baarle…

They can play a role in metabolic disorders and can break down tough plant fibers: β-glycosidases are enzymes that play many roles in nature. Fredj Ben Bdira changed these enzymes in order to enhance the production of clean energy and to improve the treatment of patients with metabolic diseases.

Mike Field has been at the Faculty of Archaeology since 2008. As a driven archaeobotanist, he is consistantly contributing to the study of plant fossils encountered in many faculty as well as external projects. ‘Flexibility, spontaneity, creativity, these are all parts of being an academic.’

Regular users of cannabis are less aware of their own mistakes, and they are not good at creative thinking. This is the conclusion drawn by psychologist Mikael Kowal from his research on the effects of cannabis. PhD defence 6 October.