Promotor: Prof.dr. D. Bouwmeester, Co-promotor: M.P. van Exter

On the largest scale, the Universe resembles a cosmic spiderweb. Most galaxies coexist in small groups within the threads of this web. At the nodes of the threads are enormous groups of galaxies forming the largest structures in the universe still held together by gravity: clusters of galaxies.

Sofia Sundström defended her thesis on 5 March 2020.

Molecular materials have been a subject of interest in fundamental research and applications for decades, and have been studied as bulk crystals, (thin) films and as individual molecules, due to the large variety in their properties. This dissertation explores pentacene crystals near the two-dimensional…

On this page you can find the current vacancies at the Van der Molen research group.

The European Union acts as one of the most powerful economic actors in the global economy, presents itself as the most successful integration project in recent history, and deploys one of the largest diplomatic services in the world. The European Union Studies minor offers a comprehensive and multi-disciplinary…

In this thesis, deep learning is studied from a statistical perspective. Convergence rates for the worst case risk bounds of neural network estimators are obtained in the classification, density estimation and linear regression model.

Spectroscopic studies on fluorescent single molecules in organic condensed matter does not only provide information about the molecule itself, but also its near environment. By suppression of phonon-induced broadening of spectral lines through cooling to low temperatures, small changes in the spectral…

The programme places emphasis on the interrelation of regional economic law of the European Union with global or trade law of the World Trade Organisation.

The one-year (60 EC) master in Classics and Ancient Civilizations provides intensive and comprehensive training covering the entire range of present-day research on the ancient civilizations of Greece and Rome and the Ancient Near East.

Want to study abroad? Visit the Master’s Week of Leiden University and find which master's programme taught in Leiden or The Hague is right for you.

Leiden University offers you several services related to career orientation and job application skills.

Leiden University offers you several services related to career orientation and job application skills.

Leiden University offers you several services related to career orientation and job application skills.

The inner city of Leiden has gained three new wall formulas. On Wednesday 22 November at 15:30 in the Klein Auditorium, alderman Robert Strijk will reveal the paintings of Lorentz contraction, Oort constants and electron spin.

Every day we make use of devices, services and apps which contain algorithms that could be discriminating. These range from Facebook to self-driving cars, from the Tax Authorities to a rotating door.

What makes South Korean films successful? In the first part of the video series 'The World of the Korean Wave', University Lecturer Peter Verstraten discusses the recent success of South Korean cinema.

Dr Bleda Düring deemed it was time for an archaeological approach on the imperialisation of Assyria. ‘While there are lot of archaeological studies of Assyrian sites, they are not really trying to address this broader picture of imperialism and how this imperialisation actually worked.’ These imperialisation…

Despite the reduced accessibility as a result of the protests of the farmers in The Hague, around 30 directors, scientists, students and civil servants met on 16 October for the Public Leadership Challenge

PhD defence

'If a local dares to speak to you, do interact, but mind what you say.' This was the advice given to Stephanie van den Akker, second-year student of International Studies, during her visit to North Korea. And yes, one local did actually speak to her, leaving her completely speechless.

Alumnus Sam van Raalte followed his passion into freelance journalism.

For more than 35 years they helped put American Studies on the map: Joke Kardux and Eduard van de Bilt. This spring, the couple retired. A farewell interview.

The Meijers prizes are awarded each year for the best published article from each faculty research programme. Reijer received the prize for his contribution to the programme ‘The Legitimacy and Effectiveness of Law & Governance’ with his article ‘Digitalisering en de (dis)balans binnen de trias politica’…

The map application includes information from old and new buildings archaeological projects. This makes it possible to investigate whether water facilities (wells, cisterns) and waste facilities (cesspits, sewers) were the privilege of Leiden’s wealthy elite in the late 16th and 17th centuries or whether…

The research group Organizational & Entrepreneurial Behavior investigates the behavior of individuals and groups who start, work in, or lead organizations, in order to inform organizational practice. By focusing on the behavior of (groups of) employees, entrepreneurs and leaders, the main levels of…

MA International Relations: Culture and Politics student Annick van Rinsum created a play as a method to research her master’s thesis. “Through writing this play, I aim to contribute to our understanding of International Relations Theory. I’m specifically interested in the question how our theories…

Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.

Anne Marieke van der Wal-Rémy recently joined the Institute for History as a lecturer in International Relations. She introduces herself.

We regret to share the news that our colleague, friend, and former professor of Assyriology at Leiden University, passed away on 15 May 2021.

The project Going Dutch investigates why the link between being or becoming Dutch, and knowledge of Standard Dutch is so often taken for granted in public discourse, by diving into its historical roots.

Between the humanities Dean Mark Rutgers and his busy schedule we can find board secretary Jonique van Hooff. Her task is to make sure that the Dean gets to smoothly do his job. 'I get very happy when, after trying to figure things out with busy schedules, I manage to properly arrange things.'

Eline van Slijpe wrote her Master of Philosophy thesis on intergenerational justice: does the current generation have obligations towards future generations? With this thesis she won the biannual J.C. Baak Prize.

Starting on Thursday 16 May 2019, the Faculty of Archaeology features a new mini exhibition, ‘Archaeology&ME’. Ten showcases address the public’s connection with archaeology. They show how archaeology matters to them and how it constitutes a bridge between the past, present and future.

Dear friends of the NVIC,

Dear friends of the NVIC,

By examining the impact of Islam on the daily life of those living under its rule, the goal of this project is to understand the striking newness of Islamic society and its debt to the diverse cultures it superseded. Questions will be the extent, character, and ambition of Muslim state competency at…

Leiden University and the University of Amsterdam, together with Heritage Leiden and Region, are developing a map application of historical Leiden.

Anke Klein and her team have devised a fun and useful app to help anxious children. In the app, children can upload a video of themselves showing, for example, something that went well for them and share their success with parents, granny or grandad. Developmental psychologist Klein talks about the…

On May 28th, Leiden physicist Wim van Saarloos takes office as President of the Royal Netherlands Academy of Arts and Sciences (KNAW). He has been vice-president since 2016. ‘The base of our universities is eroding.’

Dit deel bevat de editie of heruitgave van 52 papyri en ostraca, daterend uit de periode tussen de derde eeuw voor Christus en de achtste eeuw na Christus.

On Thursday 14 October, Dr Martine van Ittersum gave the first lecture of the Van Vollenhoven Institute’s year-long workshop 'Reconsidering the Socio-Legal Gaze'. Attended by over 40 people, her lecture, entitled 'Van Vollenhoven and Grotius: Soulmates in Empire' examined Grotius’ influence on Cornelis…

Jelle van Buuren, assistant professor at the Institute of Security and Global Affairs (ISGA), does not understand that Mark van Ostaijen puts away the communication after the attacks like: ‘It is a confused man, you can rest easy.’

The moment is there: LUGO can finally announce the winner of the Sustainability Award 2020!

Essays dedicated to Frans Wiggermann

Archaeological and Historical Perspectives on Eastern Cuisine and Western Foodways

The work presented in this thesis is based on ALMA surveys of protoplanetary disks in three star-forming regions: Lupus, OMC-2, and NGC 2024.

The illegal use of hand grenades has generated a lot of public interest over the last few years but very little is known about the nature and extent of these incidents. This research project is trying to fill that gap.