Nienke van der Marel has been awarded the New Horizons Prize in physics for her pioneering research on planet formation. This prize is given to young, promising researchers in physics or mathematics. The astronomer and her colleagues found the first observational evidence for 'dust traps' in disks around…

Lecture, Book presentation

The aim of this workshop is to open up the discussion of textual communities in Late Antiquity and the early Middle Ages, by offering a platform for PhD students from all over the world and from various disciplines to present their own research and discuss it with others. Deadline: April 23.

Promotor: F.P. Israel, Co-Promoter: R. Meijerink

The theme of the anniversary, ‘Ahead of the times’, served as inspiration for the design of the lustrum logo.

Using the James Webb Space Telescope, an international team of researchers, including Leiden Professor of Molecular Astrophysics Ewine van Dishoeck, has discovered a palette of hydrocarbons in a planet-forming disc around a young, low-mass star. The results confirm that discs around very lightweight…

On 22 June 2018, Prime Minister Rutte announced that Jaap de Hoop Scheffer, Professor of International Relations and Diplomatic Practices at the Institute of Security and Global Affairs (ISGA), together with former ministers Sybilla Dekker and Winnie Sorgdrager, will become Minister of State.

OB associations are loose groups of young, massive stars. They constitute the last stage of the massive starformation process, and the context in which new stars are formed.

The discovery of a planet far too large for its sun defies models about the formation of solar systems and planets. In a paper in Science, researchers, including Yamila Miguel of Leiden Observatory, report the discovery of a planet more than 13 times heavier than Earth orbiting the ultracool dwarf star…

An international team of scientists, including Xander Tielens of Leiden Observatory, has used space telescope Hubble and the ALMA observatory to show that UV radiation from massive stars can prevent planets from forming. The researchers publish their findings on 1 March in the journal Science.

Promotor: Prof.dr. H.V.J. Linnartz, Co-Promotores: S. Ioppolo, H.M. Cuppen

Organic molecules in interstellar space are important as they influence the structure of galaxies and star formations. Studying catalytic processes in space allows us to understand how molecular species are formed and chemically evolved in the interstellar medium and solar system objects.

The Film Club is a ProParte sub-group.

One of the effects of climate change is the phenomenon of desertification, a process that occurs in semi-arid and arid areas and causes land degradation as well as vegetation loss. Due to the lack of resources, vegetation self-organizes to sustain itself by forming large-scale spatial patterns.

In astronomy, the interpration of observations and measurements plays a crucial role: we rely purely and fundamentally on the information that reaches us as observers. And 80% of all matter in the universe is undetectable directly.

Pseudomonas Aeruginosa is a Gram-negative bacterium which can form biofilms, increasing its resistance against antibiotics and the host immune system. Polysaccharides are an integral part of this biofilm, one of these polysaccharides is called Psl. PslG is a glycosidase, able to cleave this polysaccharide,…

De spreidingswet die asielzoekers evenwichtig over gemeenten in Nederland moet verdelen en per 1 juli 2025 gereed moet zijn, staat onder druk. Mark Klaassen, universitair docent migratierecht, spreekt in EenVandaag over de zaak.

Louis Honée, a student assistant for the Thorbecke chair and the Department of Constitutional and Administrative Law, is one of the new European Universities Debating Champions. Together with his team partner, he beat around 150 teams in the English as a Second Language category.

Foute taal? Bestaat niet!

Bandura Witharana defended his thesis on 27 September 2018

The lipid matrix in the stratum corneum (SC), the upper layer of the skin, plays a critical role in the skin barrier. The matrix consists of ceramides (CERs), cholesterol (CHOL) and free fatty acids (FFAs).

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

Malte Riemann examines the evolution of the mercenary concept. He suggests that notion of mercenary emerged in 19th-century Europe.

Now that the new Dutch government's plans are set out on paper, the chess game begins for cabinet formation leader Richard van Zwol. He has to make the next move and put together the ministerial team. But how do you know if you’ve made the right move with the right chess piece? And who is a suitable…

International researchers have, for the first time, pinpointed the moment when planets began to form around a star beyond the Sun. Using the ALMA telescope, in which the European Southern Observatory (ESO) is a partner, and the James Webb Space Telescope, they have observed the creation of the first…

Even though more than 4000 extra-solar planets are known today, only a small fraction of these has been captured in an image. To better understand the planet formation mechanisms in solar-like environments we started the Young Suns Exoplanet Survey (YSES).

This book analyses the emergence of modern parties in nineteenth-century Europe and explores their connection with the slowly developing institution of democracy.

I have studied the hot, diffuse gas around and between galaxies. Specifically, I have used the EAGLE numerical simulations of galaxy formation to predict the properties of this gas, and I have used those properties to predict specific observables: soft X-ray absorption and emission lines.

In this thesis, I study the formation of large-scale structure and the physics of particle acceleration at large scales (~Mpc).

Bacteria have the ability to alter their morphology in order to adapt to changing environments.

Promotor: Prof.dr. J. Kuiper, Co-promotor: Saskia C.A. de Jager

The aromatic infrared bands (AIBs) seen throughout the interstellar medium (ISM) are generally thought to be carried by polycyclic aromatic hydrocarbons (PAHs) and their nitrogen analogues (PANHs).

Promotores: Prof.dr. F.P. Israel, Prof.dr. P.P. van der Werf

Join-in courses zijn MA-cursussen over middeleeuwse onderwerpen gegeven binnen vastgestelde MA-programma's van de zes deelnemende universiteiten van de Onderzoekschool. Op aanvraag zijn deze vakken toegankelijk voor studenten van andere (Nederlandse) universiteiten. De cursusbelasting en het aantal…

Vast, often populated, areas in dryland ecosystems face the dangers of desertification.

The physical landscape is the setting in which human activities take place. Landscape and site context during human occupation is one of the areas of concern for the geoarchaeologist. A detailed stratigraphical study -both on- and off-site- clearly enhances the interpretation of the archaeologists,…

How do processes of coalition-formation influence patterns of decision-making in the European Union?

Almost all bacteria are enveloped by a cell wall that provides cellular protection.

This thesis focuses on amyloid proteins, a class of proteins that convert into amyloid fibrils.

CML-IA is a database that contains characterisation factors for life cycle impact assessment (LCIA) and is easily read by the CMLCA software program.

Immersive, interdisciplinary and didactically-sound learning activities designed to promote capacity building in various game-based formats.

Following the recent debate on the formation of a new Dutch government, there seems to be no clear definition of an extra parliamentary cabinet. Wim Voermans, Professor of Constitutional Law, discusses this in Dutch magazine ‘Vrij Nederland’ (VN).

Recently, a pro-Palestine demonstration was held outside the National Holocaust Museum in Amsterdam during its opening, which was being attended by President Herzog of Israel. Wilders’ response? ‘It smells like a political campaign by the far-left mayor of Amsterdam. Irresponsible.’

This subproject offers a political and transnational perspective on the development and uses of public memories of the Revolt in the seventeenth century.

Leiden University offers its students a wide range of bachelor's, master's and minors that explore sustainability or climate. Here, you find an overview of those programmes in the academic year 2020-2021.

Covid-19 is een disruptieve ontwikkeling die hier en nu veel vraagt van zorgprofessionals, bestuurders en managers. Hoewel de crisis nog volop bezig is, is nu al duidelijk dat het Coronavirus een blijvende impact zal hebben op zorginstellingen en fundamentele vragen oproept over hoe we onze zorg optimaal…

In this research group, headed by Bob Van de Water, cell signaling programs that underlie adverse drug reactions as well as cancer development and progression are unraveled. Adverse drug reactions involve cell injury in critical target organ cells which leads to the activation of cellular stress response…