Promotor: J.S. Kaastra Co-promotor: E. Constantini

Following the Big Bang, structure in the Universe started collapsing under the force of gravity. This resulted in the formation of the first stars, galaxies and clusters of galaxies.

Promotor: H.J.A. Rottgering, Co-Promotor: R.J. van Weeren

In this thesis new methodologies are developed for the detection and systematic study of radio sources in the early universe. This allows us to gain a deeper understanding of the formation and evolution of galaxies, the activity of supermassive black holes, and the final phase transition of our universe:…

The origin and evolution of galaxies are closely linked to many different physical phenomena.

An Active Galactic Nucleus (AGN) is a highly luminous region at the center of a galaxy, powered by the accretion into a supermassive black hole and emitting energy from radio waves to gamma rays, often outshining the host galaxy.

Promotor: W. Jaffe, Co-promotor: K. Meisenheimer

Lecture

A substantial part of PhD candidates have an increased risk for mental health problems, stress complaints or burnout. Leiden University has appointed a psychologist, especially for PhD candidates: Agnes van Rossum.

The archaeology domain produces large amounts of texts, too much to effectively read or manually search through for research. To alleviate this problem, we created a search system (called AGNES), which combines full text search with entity and geographical search.

Understanding how galaxies form, interact, and evolve comes largely from comparing theory predictions with observational data. Numerical simulations of galaxies provide the most accurate approach to testing the theory, as they follow the non-linear evolution of gas and dark matter in great detail and…

This article explores how ISIS and the Taliban have fostered support through their parallel legal systems.

In the spring semester of each academic year, Visiting Professors from Austria visit Leiden University to teach about their specialisms (alternating between history, music, art, literature, often dealing with 19th and 20th century themes). They teach a lecture course and a seminar, usually at the bachelor…

Radio jets are important to the evoultion of galaxies. However, it is still not fully understood how a radio jet can be triggered.

From 2012 onwards the primary scholarly and media focus in regard to foreign fighters has been on the large number of Westerners joining jihadist groups in Syria and Iraq. Yet, much less attention has been paid to another conflict in the ring around Europe that attracted foreign fighters: the Russo-Ukrainian…

PhD defence

How and under what conditions Dutch primary school principals' managerial networking activities affect the performance of their school

Outflows are crucially important for the gas budget and evolution of luminous star-forming galaxies and AGNs, with observed mass outflow rates of the same order as the star formation rate. Greater star formation and black hole growth lead to more intense feedback and outflows, resulting in self-regulated…

Do you have any questions about the master’s specialisation programme Mathematics and Science Communication and Society? Please contact us!

Do you have any questions about the master’s specialisation Mathematics and Algebra, Geometry and Number Theory? Please contact us.

Do you have any questions about the master’s specialisation programme Mathematics and Business Studies? Please contact us!

Do you have any questions about the master’s specialisation programme Mathematics and Education? Please contact us.

This thesis investigates how galaxies form and what diversifies the evolutionary histories of galaxies.

Do you have any questions about the Mathematics master’s programme? Please contact us!

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We will use Artificial Intelligence to make an intelligent, multilingual search engine for archaeological texts, which will enable new discoveries about the human past.

Set up in 1991, this unique project aims to identify and describe the common lexical heritage of the most important Indo-European languages and language branches. The project has thus far resulted in twelve volumes published as The Leiden Indo-European Etymological Dictionary Series (Brill, Leiden).

Jed Wentz realized a unique concept: 19-th century melodramas for voice and piano.

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.

This research deals with the royal houses of the Vijayanagara Empire and four of its successor states: Ikkeri, Tanjavur (under both the Nayaka and Bhonsle rulers), Madurai, and Ramnad. This study is thus concerned with dynastic politics and imperial legacies in south India between the 14th and 18th…

A day at the beach, games, a visit to an embassy and a pub crawl. The activities at HOPweek help new students get to know not just The Hague but each other too.

An incredible quantity of archaeological reports are stored in digital archives. If you want to search for information in them, you have to do this manually. And that is a real chore. Archaeologist Alex Brandsen has now used deep learning, a form of artificial intelligence, to develop a search engine…

Mariana Gkliati co-organised and chaired on 14 September a PhD Masterclass with the UN Special Rapporteur on extrajudicial, summary or arbitrary executions, Agnès Callamard.

PhD candidate Alex Brandsen, working in the Digital Archaeology research group has recently received a grant from the Leiden University Centre for Digital Humanities. This grant will be used to further develop and improve AGNES, the search engine for excavation reports that Brandsen is building.

PhD candidate Agnes van Steen researched the history of the Leiden women’s rights movement (1860-1990) and found that the university produced many feminists.

Jason Rudall, Assistant Professor of Public International Law at the Grotius Centre for International Legal Studies, has published a monograph entitled 'Responsibility for Environmental Damage'.

A mix of data research, artificial intelligence and archaeology led to lively discussions on 31 January. On that day the unique event 'AI & Data Science @ Archaeology' took place in which the Data Science Research Programme (DSRP), SAILS and the Faculty of Archaeology joined forces.

Ups and downs for students from year 12 and/or vwo 6 who are selected for the Academic Challenge and the Dutch version of this challenge, the ‘Wetenschapscongres voor vwo’.

Leiden researchers discovered that North Korean labourers are being forced to work on a large scale in Poland. Professor of Korea Studies Remco Breuker will present a report on the abuses in Poland at the ‘Slaves To The System’ conference on 6 July.

Conference

In January, Dr Karsten Lambers was appointed as Professor of Digital and Computational Archaeology at Leiden University's Faculty of Archaeology. With his extensive background in both archaeological research and computational sciences, the installation of Professor Lambers further strengthens this discipline…