Circumstellar discs are the reservoirs of gas and dust that surround young stars and have the potential to become planetary systems.

Heterogeneous catalysis is essential to many industrial applications. These catalysts are often comprised of supported nanoparticles, which contain various different surface sites.

When does it rain when air is oversaturated with moisture? How does an infection spread among the population? The problems that mathematician Professor Frank den Hollander tries to solve come from physics, chemistry and biology.

Last Thursday, the April edition of the ILS Lunch Seminars took place. This well attended seminar featured criminal- and criminological issues from an Interaction between Legal Systems’ perspective, with presentations from Adriano Martufi and Marco Stam.

When the immune system attacks cancer, the tumour modifies itself to escape the immune reaction. Researchers at LUMC published on this subject in Nature on 28 June.

On Thursday 21 February 2019, the successful event ‘Interaction between Legal Systems 2.0: Reflections at the halfway point’ took place. The day’s events brought together the ILS 2.0 research profile areas of ‘SOLID: Solidarity Under Strain’ and ‘Policing the high seas: maritime law enforcement’.

Astronomers from the Leiden Observatory and from the University of Rochester (in the US) have discovered that the planetary ring system that covered the very young sun-like star J1407 is actually of enormous proportions. In fact, it’s much larger and heavier than the ring system surrounding Saturn.…

Scientists of Leiden University and Technical University Delft are going to predict how and where defects in sewer systems arise. They are working with light sensitive camera’s, based on new automated multi-sensor inspection with stereo vision and laser range scanning. Their models are going to process…

Galaxies in the local Universe fall into two main categories of spirals and ellipticals. In this Thesis, we explore the structural evolution of galaxies into this bimodal distribution.

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: Koen Kuijken Co-promotor: Henk Hoekstra

This thesis is about the study of hydrocarbons via infrared spectroscopy.

Promotor: Prof.dr. W.T.F. den Hollander, Prof. dr. E.A. Verbitskiy

In the current global context, there is a pressing need to address sustainable energy supplies to safeguard our Planet and its ecosystems. The choices made by human society have a significant impact on genetic evolution and climate.

This study attempts to understand how indigenous community institutions pose an important role in sustainable community-based development, including the integration between local culture and development.

LCN2 organizes seminars on the last Friday of each month.

On 28 June 2017 the Department of Child Law and the Van Vollenhoven Institute of Leiden Law School organized the colloquium ‘Minorities and The Criminal Justice System’, with James Bell as the keynote speaker.

All the planets in our solar system orbit around the Sun in an ecliptical plane. This is to be expected because our solar system was formed from a so-called protoplanetary disc. PhD candidate Anna Miotello has studied these kinds of discs and how they influence the formation of stars and planets. PhD…

Research at the SBC group is comprised of the following research themes:

Artificial intelligence systems are smart. They can recognize patterns better than humans, for example. Yet humans are still very much needed. How can you better steer those AI systems? LIACS lecturer Jan van Rijn wrote a book about this together with a number of colleagues. We asked him a few quest…

Artificial intelligence systems are smart. They can recognize patterns better than humans, for example. Yet humans are still very much needed. How can you better steer those AI systems? LIACS lecturer Jan van Rijn wrote a book about this together with a number of colleagues. We asked him a few quest…

Are you interested in expanding your knowledge on the Dutch crisis management system? Leiden University is organising a unique lecture series on the subject in collaboration with the Netherlands Institute for Public Safety (NIPV). The lectures will take place on 22 April, 13 May, and 3 June.

PURPOSE: In the present study we investigated the root-cause of an interference signal (100-200 nm) of sugar-containing solutions in dynamic light scattering (DLS) and nanoparticle tracking analysis (NTA) and its consequences for the analysis of particles in biopharmaceutical drug products.

Design of a Linguistic System for Interstellar Communication Based on Logic

Liposomes – nano-sized spheres composed of fatty molecules – are very promising for vaccination. Bio-pharmaceutical scientist Naomi Benne discovered that the immune response in animal models can be steered by varying the charge of the liposomes. She obtained her PhD degree on 8 September for this research,…

A new treatment for atherosclerosis showed promising results in isolated cells but proved to be less effective in initial animal tests. Bachelor student Biopharmaceutical Sciences Willemijn van der Heijden aimed to understand why. She investigated whether the formation of a protein layer around the…

Binary systems, consists of five electronic compositions, in each of which Richard Barrett worked with a specially made recording from an improvising instrumentalist to produce a new kind of compositional collaboration: Daryl Buckley (electric lap steel guitar), Ivana Grahovac (cello), Lori Freedman…

On Thursday the 3rd of March 2016, Professor Bruning welcomed a delegation from the government of the Republic of Kosovo, within the framework of the Matra-project ‘Protecting Children in Kosovo: from Policy to Practice’.

Benjamin Scott, master student Air and Space law in Leiden, was given a unique chance by Professor Pablo Mendes De Leon. Benjamin was allowed to edited “The Law of Unmanned Aircraft Systems”. In close collaboration with the professor, staff of the International Institute for Air and Space Law at Leiden…

On 16 April 2021 the webinar ‘Children and young adults in contact with the law: Systemic vulnerabilities and institutional responses’ took place. In total 17 speakers and discussants engaged with the topic of vulnerability.

What does site patterning reveal about the social landscape dynamics across the historical divide?

Cardiovascular syndromes are the major cause of death in Western societies.

Until the 1990s, the only known planets were those in our Solar System. Three decades later, several thousand exoplanets have been discovered orbiting stars other than the Sun, and substantial efforts have been made to explore these strange new worlds through spectroscopic analyses of their atmosphe…

The work in this thesis demonstrates how to obtain an atomic-scale picture of a diverse set of complex surface structures observed using STM, under disparate conditions.

The ability to collect and interpret huge quantities of data has become indispensable to society and academia. Leiden University is a knowledge and expertise centre for data science that places the emphasis on interdisciplinary collaboration and innovation.

Promotor: P. T. de Zeeuw, Co-promotor: N. Neumayer; G. van de Ven

We often assume that highly gifted children always perform at maximum capacity. Psychologist Bart Vogelaar discovered that this group too benefits from training and explanation. Strangely enough, the benefits are the same for both groups. PhD defence 18 January.

With cancer, the immune system is a double-edged sword: it can attack tumour cells, but can also help them grow and spread. It is a question of harnessing it. This is what Professor Karin de Visser argued in her inaugural lecture on 15 November 2019.

The research report by the independent committee on the future of the work disability system in the Netherlands ('Onafhankelijke Commissie Toekomst Arbeidsongeschiktheidsstelsel' (Octas)) was published this week. While the number of people unable to work has dropped considerably, the system is still…

Environmental scientist Rutger Hoekstra addressed the General Assembly of the United Nations on 12 April. And that’s quite a big thing to do. How do you get there as a scientist? And, more importantly, what was his message? In eight questions, Rutger explains what he does and why.

Scientists often need to make sense of complex systems without knowing the important parameters or even without access to all the information. A collaboration of network theorists, including Diego Garlaschelli (IMT Lucca/Leiden), has now published a review article in the inaugural issue of Nature Reviews…

Which traits and/or trade-offs determine benefits of being deciduous or evergreen?

In 2017, at the start of the Rutte III cabinet, tax scholars Leo Stevens and Koen Caminada presented a blueprint for a new tax system. Today, four years on, they observe that the cabinet has put little effort into innovations in the area of tax.