Graig Klein, assistant professor at the Institute of Security of Global Affairs (ISGA), has been awarded a Starting Grant by the European Research Council (ERC) for his project TERGAP. With this 1.500.000 euro grant Klein and his research team will investigate terrorist groups’ decision-making and strategic…

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 European Research Council has awarded a Starting Grant to five early career scientists from Leiden University. They received funding up to 1.5 million euros to further expand on their research subject.

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,…

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.

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…

Monday 5 September the eighth edition of the interdisciplinary Minor Sustainable Development started. With 65 students coming from more than 20 different disciplines we've a record number of students and backgrounds.

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).

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

On 15 February 2022, Morshed Mannan defended the thesis 'The Emergence of Democratic Firms in the Platform Economy: Drivers, Obstacles, and the Path Ahead'. The doctoral research was supervised by Prof. I.S. Wuisman and Prof. J.A.A. Adriaanse.

Yeonhwa Jeon defended her thesis on 6 July 2017.

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

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

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

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

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.

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.

Language courses from February onwards

Leiden University has started a collaboration with the Nicolaus Copernicus University in Poland. The project includes the exchange of students and staff, joint research, and the organisation of seminars and conferences. Besides Leiden, the universities of Copenhagen, Newcastle and Innsbruck are also…

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

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…

Abstracts can be submitted only if you are registered for the conference, including the required payment.

Abstract submission is now closed.

Please note that SP2024 uses a two-step submission process with two separate deadlines; 20 December 2023 for the abstract and 12 January 2024 for the full paper. The abstract submission (or pre-submission) is needed for the program chairs to assign your submission to reviewers with matching expertise.…

How did parties as political organizations emerge?

Workshop

We talk with Sophia Dittmar about starting a career in Psychology. Dittmar is currently studying the master's specialisation in Economic and Consumer Psychology at Leiden University. We talk about what she learned from her internship, why she switched masters and how to get the most out of an internship.…

Multiple identities of elites and ‘commoners’ viewed through the lens of crafting from the Chalcolithic to the Iron Ages in Europe and the Mediterranean

Within 3 months of the start of the PhD project, your supervisors and you will draw up a Training and Supervision Plan in consultation with you and the other members of the supervision team. 

Research at Leiden Observatory spans the full width of modern astrophysical enquiry. It is based on observation, theory, simulation, and experiment. Two broad clusters characterize the ongoing research. Within each theme, researchers carry out their personal and specialized research programme. The two…

Along with your application, you will need to submit the documents below.

More than 3,500 enthusiastic Leiden first-years, 80% of them coming to Leiden University, gathered on Monday morning 13 August at the Lammermarkt for the start of the EL CID. Music booming, the groups gathered around their mentors in two shifts, at 9.30 and 11.30.

In this thesis we investigate cosmology and the large scale structure of the Universe using cosmological simulations.

This research focuses on the distribution of chemical elements in protoplanetary disks, the birthplaces of planets. These disks form around young stars and contain gas and dust, from which planets grow. Ice plays a crucial role in planet formation, aiding the clumping of dust particles and influencing…

This dissertation studies the formation of the wage laboring class in the Iranian oil industry during the first decades of the 20th century.

On April 26th, Kate Bellamy succesfully defended her doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Kate on this great result.

How does open government affect the level of public trust?

Hydrocarbonylation of alkenes with carboxylic acids in synthesis of carboxylic acid anhydrides is relatively less explored. We herein present a study and optimization of a palladium-catalyzed hydrocarbonylation reaction of alkenes using carboxylic acids as the nucleophile, by which acid anhydrides can…