Conference

Pulsars were first discovered in 1967 and since then the population has grown and expanded over several wavelengths.

What is the origin of solar systems?

An international team led by Leiden astronomers has discovered why the two stars of binary star DI Herculis rotate so strangely around one another, which once even proved problematic for Einstein's theory of relativity. Their findings were published in Nature.

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…

Promotor: Prof.dr. V. Icke, Co-Promotor: T.I. Madura

Promotores: R. Tijdeman, K.J. Batenburg

A large diversity of exoplanetary systems has been found, but it is still unclear what drives this diversity.

Promotores: K.J. Batenburg, B. Koren

Promotores: S.F. Portegies Zwart, E. M. Rossi

For centuries astronomers studied the Universe by collecting light. Nowadays, we are living in times of great technological advancements, which allow us to explore our Universe in a new way - though gravitational wave radiation.

In this thesis, we present new laboratory data of interstellar dust analogues.

The high velocity tail of the total velocity distribution of stars provides essential insight into fundamental properties of the Galaxy.

PhD Defence

PhD Defence

What is the relationship between probability experiments and cryptographic applications?

We analyse the link between media consumption and the attitudes toward people living with HIV/AIDS in Chile. We used data from a sample of 1000 people, obtained in the 2011 wave of the World Values Survey (WVS). We use a logistic binary regression model by maximum likelihood. Our results suggest that…

Promotor: Prof.dr. P. Stevenhagen, Co-Promotor: Dr. J.H. Evertse

Dust particles in space form the basis for new stars and planets. But what do these particles consist of and how do they behave? Sascha Zeegers studied this. PhD defence 1 November.

The Old Observatory houses four historical telescopes. On this page you can learn more about them.

On this page you will find more information about the selected projects of the Justice, Equity, Diversity and Inclusion (JEDI) Fund for 2022.

How does the cluster bootstrap procedure in combination with various types of linear models perform in the analysis of longitudinal data, compared to other methods.

This book aims to understand cultural transitions and negotiations between art and politics from 1989 to 2020 through analysis of a series of Cuban novels.

Does the δ-machine have higher accuracy than the other feature-based classifiers in some conditions?

Promotor: S.J. Edixhoven, Co-promotor: K.J. Batenburg

Our call for workshop proposals was met enthousiastically by various people, and we are happy to announce that the following four workshops were unanimously selected by the organising committee.

The objective of this project is the development of a new psychometric model, called the Generalized Squared Distance Logistic Model (GSDLM). This model is an evolution of older psychometric approaches (such as PARELLA, GHCM, and GGUM) and the Gaussian Ordination Models (GOMs) used in environmental…

Promotor: Prof.dr. F. den Hollander

A century ago, it was unclear whether the stars in the sky were clustered in groups, or widely spread in the universe.

Multiple stars, that is two or more stars composing a gravitationally bound system, are common in the universe.

Business Process Model and Notation (BPMN) has become the standard for business processes diagrams.

In Shimmering Images, Eliza Steinbock traces how cinema offers alternative ways to understand gender transitions through a specific aesthetics of change.

The overall aim of this project is to understand, on the molecular level, how the bacterium V. fischeri cells interacts with their squid host.

The two-year Advanced Computing and Systems programme (120 EC) includes mandatory core courses and electives, as well as a Master's Thesis Research Project.

The thesis addresses the long-term dynamical evolution of hierarchical multiple systems.

Grace Leksana defended her thesis on 26 May 2020.

The LGBT+ Network offers a platform for all lesbian, gay, bisexual, transgender and queer staff and students at Leiden University.

Research question

The Dutch empire fulfilled the goals, interests and necessities of the central state, of the local elites and of the common man. This thematic issue of Tijdschrift voor Geschiedenis goes beyond traditional views of the Empire as a ‘trading enterprise’, and argues that the Dutch empire, like all other…

Turkic nomadic rulers established large empires in the Middle East and Asia between the 11th and 14th centuries. This project will explore the link between their political ideology and the production of art and literature, via the cultural heritage of five cities along the Silk Road: Kashgar, Samarkand,…

How to improve the method in quantifying the combined effects of metal-based chemicals?

The project “Digital Materials” is about the conception, exploration and analysis of possibilities to make digital processes directly operative and tangible in physical materials and examines how the fiction of these “Digital Materials” could affect on figures of interaction between human subjects and…

The research of the Mathematical Institute is driven by the curiosity of its members and has many internal and external connections. It can be characterised as fundamental but with an open attitude towards applications.

A group of astronomers was actually examining the dust disc around the young double star CS Cha, when they saw a small dot on the edge of their images. It turned out to be a small planet of only a few million years young, which moves along with the double star. Whether it is a super-Jupiter in the making…

1. What is the exact role of PIN proteins in PAT? 2. How is PIN polarity established, and how is it modulated by AGC kinase-mediated phosphorylation? 3. What is the role of the AGC kinase, as modulators of PAT, in translating environmental signals, such as gravity, light or mechanical stress, to plant…

Knowledge and culture subproject 4:

How can we adapt the Dutch we use at the University so that everyone feels comfortable and included? This was the subject of debate during a panel discussion on 28 June at Leiden University.

Today, ESA’s Gaia mission releases its new treasure trove of data about our home galaxy. Astronomers, led by the Leiden astronomer Anthony Brown, describe strange ‘starquakes’, stellar DNA, asymmetric motions and other fascinating insights in this most detailed Milky Way survey to date.

Theoretical physicists Kevin Grosvenor and Sam Young have won Marie Curie grants for research projects at LION/Lorentz Institute.