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

Promotor: Prof.dr. S.F. Portegies Zwart, Co-promotor: D.C. Heggie

Low-mass main-sequence stars like our Sun are continuous sources of outflowing hot magnetised plasma. In the case of the Sun, this is known as the solar wind, whereas for other stars they are called stellar winds.

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…

The Hofstad group is known mainly because of Mohammed B., the murderer of Theo van Gogh. PhD candidate Bart Schuurman examined this Dutch jihadist group based on interviews and confidential police files. How and why did the group come about? What drove some of the group members to commit terrorist…

Restructuring of corporate groups was discussed at the joint conference of the European Law Institute (ELI) and the Business & Liability Research Network of Leiden University took place in Leiden (the Netherlands). During this conference, developments at both the national and European levels were discussed.…

This thesis concerns the relation bettween the good reduction of Shimura varieties and the associated loop groups.

An Interdisciplinary project group of the Master Industrial Ecology was awarded a prize for its project “From waste to resource, One chain with shared responsibility”, commissioned by AEB Amsterdam and Waag Society.

The European Law Institute (ELI) and Business and Liability Research Network (BLRN) of the Leiden Law School organise a conference on restructuring of corporate groups in the afternoon of 5 December 2018. ELI’s Business Rescue Report of Prof. Em. Bob Wessels and Prof. Stephan Madaus is the starting…

Three projects with Leiden researchers are to receive a subsidy from NWO for the construction or renovation of large-scale research facilities. They will be working on electron microscopy, an X-omics initiative and an X-ray telescope. The projects are part of the National Roadmap for Large-Scale Scientific…

There is much wrong with the taxonomy of the plant genus Phyllanthus. Roderick Bouman of the Hortus botanicus Leiden has developed a new phylogeny for Phyllanthus and exposes the evolution of the plant genus. Publication in TAXON.

Professor of Social and Organisational Psychology Carsten de Dreu has been awarded an Advanced Grant by the European Research Council. This subsidy of 2.5 million euros will allow De Dreu to carry out research on the causes of conflicts between groups at both macro- and micro-level.

In 1968 Japan was shocked by student protests and even today, exactly fifty years later, their effects can still be felt. An interdisciplinary group of researchers recently met to discuss them at Leiden University.

To get an idea of the science communication products and research that is possible, a few examples of student projects of recent years are shown below.

From nanoparticles to colliding ice planets and from biological origami to new x-ray scanner techniques: this year again, our scientists have made wonderful discoveries. From the largest numbers to the smallest molecules and from the oldest galaxies up to the latest algorithms, take a look at each institute's…

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

Internationalisation is an important part of the mission and vision of Leiden University. The Erasmus+ programme, an initiative of the European Commission, makes a substantial contribution to this goal. Erasmus+ provides grants for educational projects with partners within and outside Europe, and facilitates…

The long term goal of the Biophysical Organic Chemistry/SSNMR group, headed by Prof. Huub de Groot, is to reach an understanding of structure, dynamics and functional mechanisms of membrane proteins and self-organized biological assemblies and to translate this knowledge into new concepts for nano-devices,…

The new cabinet threatens to cut nearly a billion euros from higher education. This not only endangers academic work, it is a disaster for the Netherlands itself. The proposed penalty on study extensions and other financial measures will heavily impact students and will reduce education accessibility.…

The Leiden University Institute for Area Studies (LIAS) is devoted to the study of places in the human world from antiquity to the present time in a comparative and interdisciplinary perspective.

Lecture

Authors: Michèle Bos and Jan Melissen

A research team led by Dr. Yannick Veilleux-Lepage (Institute of Security and Global Affairs) in collaboration with Emil Archambault has secured funding from the Canadian Department of National Defence’s Mobilizing Insights in Defence and Security (MINDS) program to study the use of drones by violent…

The Hague Space Resources Governance Working Group, hosted by the IIASL, has recently agreed on the Draft Building Blocks for the Development of an International Framework on Space Resource Activities and will present the outcome of its work during the NewSpace Europe Conference in Luxembourg. The Executive…

Professor Barend Mons has been appointed Chair of the Commission High Level Expert Group

The Dutch legal system perhaps appears at first sight not to be very suited for strategic litigation by interest groups. But judgments such as SyRI and Urgenda show that when an interest group does fulfil all the conditions, anything can happen in court.

On January 1, the research group Physical Violence and Public Order was launched. Previously part of the group Terrorism and Political Violence, the new group focuses on violence ranging from mass shootings such as Columbine and Virginia Tech, to domestic violence, alcohol-related violence, violent…

In 2016, Leiden University hosts the monthly meetings of the Music and Cultural Analysis reading group.

The ECPR summer school on Interest Group Politics is celebrating its 10th anniversary. To celebrate this especial edition, this year’s summer school includes many renowned researchers and professors from around the world. In addition, as a part of the celebration, we are organizing an exceptional one-day…

On 12 November 2019, the members of The Hague International Space Resources Governance Working Group adopted the Building Blocks for the Development of an International Framework on Space Resource Activities, during the last meeting of the Working Group that took place in Luxembourg from 11 to 12 November…

Hardly ever before have different groups in the population retreated into their own bubble as much as they are doing today. Professor of Sociology and Law Maartje van der Woude and her students will be examining the effect of social distancing on relationships. How do the people of Leiden look at students…

Leiden University joins the Just Transitions for AMR Working Group, an interdisciplinary team of social science and humanities researchers who are exploring ways to mitigate the growing threat of antimicrobial resistance in a just and equitable manner, with due consideration to the human rights of present…

North Korean detention camps are no different from Nazi prison camps. But as long as the country remains economically isolated, international criticism will be ineffective, writes North Korea expert Remco Breuker in the opinion section of Dutch newspaper NRC on 21 February. Breuker advocates using the…

On Wednesday, 22 September, at 17.00, this interdisciplinary research group kicks off a series of online seminars.

Henk Hoekstra and Alessandra Silvestri work on the astronomy and theoretical physics in the Euclid mission. These Dutch researchers are part of the mission.

The Old Observatory has a rich history. On this page you will find a short version of the history that took place in the observatory.

Exploring the largest structures in the universe by looking at the tiniest particles? Lydia Stofanova, PhD candidate at Leiden Observatory and SRON Netherlands Institute for Space Research, dives into this intricate connection. In her PhD research, she explored how elements like oxygen influence the…

A preparatory seminar in Bonn leading up to the Annual Meeting in Johannesburg in August of this year

Last week Esther Kentin participated in the Second Meeting of the Ad Hoc Open-Ended Expert Group on Marine Litter and Microplastics organized by UN Environment in Geneva.

In an essay in Dutch magazine 'Vrij Nederland' Nikki Sterkenburg, external PhD candidate at the Faculty of Governance and Global Affairs, discusses how radical and extreme right voices have become mainstream over the last twenty years. Sterkenburg brings up several reasons why the prevailing stigma…

Last week Esther Kentin participated in the Second Meeting of the Ad Hoc Open-Ended Expert Group on Marine Litter and Microplastics organized by UN Environment in Geneva.

In November 2013, three PhD students started in Herman Paul’s VIDI project ‘The Scholarly Self: Character, Habit, and Virtue in the Humanities, 1860-1930’. In this newsletter they introduce themselves.

For many a first-year, student life has well and truly begun. This also applies to students in The Hague, who were thrown in at the deep end during the HOP introduction week. We paid them a visit on a sunny afternoon at Landgoed Clingendael.

At Leiden Observatory, researchers investigate the origin of stars and their planetary systems. They detect and characterize planets around other stars, which are called exo-planets. They study how stars and planets form. And they follow molecules from interstellar clouds to nascent planet systems.…

Leiden Observatory provides full education programmes in Astronomy both at the bachelor’s and master’s level. We integrate world-class scientific research and excellent education. Read all about our study programmes!

The socio-economic effects of climate change often do not receive enough attention. At the EuroScience Open Forum (ESOF) a group of researchers will provide more insight. How does climate change affect whether people work together or conversely end up as opponents? And what can we learn from societies…

Associate professor Rens Tacoma has won the 2021 Research Prize for Historical Sciences. The prize is awarded annually by the Italy Studies Working Group for the best scholarly publication in the field of Italy Studies in Dutch or Flemish academia.

This thesis describes the design and synthesis of fragments of various cell wall carbohydrates of the Streptococcus species, including the branched Group B-specific antigen (GBC) of Group B Streptococcus, glycerol phosphate (GroP) modified group A carbohydrate (GAC), and the O-acetylated type 1 capsular…