Promotor: Prof.dr. T. Hankemeier, Prof.dr. J.C.T. Eijkel (Twente University)

Why do black holes emit thermal radiation? And how does a closed quantum system thermalize?

HomininSpace is an agent based modelling and simulation system in which fluctuating carrying capacity is the key attractor for hominin dispersal. A parameterized and spatially explicit reconstructed palaeo-environment models available energy in the form of secondary biomass using reconstructed climate…

PhD defence

This paper addresses the gap that explores how agencies might allocate their personnel so as to maximise performance with the personnel they have.

On 25 January 2024 H.J. Pak successfully defended a doctoral thesis and graduated.

An international team of astronomers led by Matus Rybak (Leiden University) has proven, thanks to accidental double zoom, that millimetre radiation is generated close to the core of a supermassive black hole. Their findings have been accepted for publication in the journal Astronomy & Astrophysics.

Celebrating 20 years of Environmental Research and Education in Northern Cameroon

This header image was once elected Image of the Week by De Volkskrant and won second place in the LION Image Award. The research behind it is no less successful if we’re counting prizes. Last August, group leader Tjerk Oosterkamp was awarded an NWO Projectruimte grant, and now NWO-TTW grants him an…

In the 16th and 17th centuries, many Northern-Netherlandish artists drew outdoors to train their hands and eyes, and to record landscapes and nature. In her inaugural lecture on 21 March 2022, Yvonne Bleyerveld, Professor by Special Appointment of Art on Paper and Parchment, draws our attention to a…

Building a lively Humanities Campus with renewed and sustainable buildings surrounded by a green outdoor space.

This thesis studied in depth the energy use and CO2 emissions of the industrial sector in China.

On Thursday 11 January 2018, Xiang Li defended her doctoral thesis: “Collective Labour Rights and Collective Labour Relations of China”. The supervisors are Professor Guus Heerma van Voss and Professor Barend Barentsen.

An international team of astronomers including Leiden scientists publishes the image of a young star with a surrounding dust disk that is still being fed from its surroundings. The phenomenon around the star SU Aur may explain why so many exoplanets are not neatly aligned with their star. The European…

Physicists have manipulated light with large artificial atoms, so-called quantum dots. Before, this has only been done so well with actual atoms. It is an important step towards light-based quantum technology. Publication on August 30th in Nature Communications.

On Thursday 30 May 2024 Corrie van Maris successfully defended a doctoral thesis and graduated.

Isis on the Nile. Egyptian gods in Hellenistic and Roman Egypt

Researchers have discovered the most distant Milky-Way-like galaxy yet observed. Dubbed REBELS-25, this disc galaxy seems as orderly as present-day galaxies, but we see it as it was when the Universe was only 700 million years old. This is surprising since, according to our current understanding of…

On Tuesday 11 June 2024 Olivia Ramble successfully defended a doctoral thesis and graduated.

On Tuesday 3 September 2024 Straton Papagianneas successfully defended a doctoral thesis and graduated.

On Friday 15 November 2024 Chunli Song successfully defended a doctoral thesis and graduated.

On Friday 22 November 2024 Ye Jiang successfully defended a doctoral thesis and graduated.

On Wednesday 14 May 2025 Remzi Çakırlar successfully defended a doctoral thesis and graduated.

On Friday 7 March 2025 Adam Knight successfully defended a doctoral thesis and graduated.

Information about the association and the board.

This longitudinal study is focused on neurodevelopmental problems in young children with XXY, XXX and XYY, aged 1 to 6 years.

Leiden University is building on its future in Leiden. As a means to achieving this aim, the University will be investing in excess of 100 million euros over the coming years in constructing the new accommodation for the Faculty of Humanities at Witte Singel and Doelensteeg. The University aims with…

This thesis utilises the exceptional sensitivity and resolution of LOFAR to explore the low-frequency Universe, while simultaneously advancing the telescope's capabilities to enable new scientific discovery.

Global Environmental Extensions Multi-Regional Input-Output (EE-MRIO) analysis is often used to analyze how changes in global and national demand for products lead to socioeconomic and environmental impacts at the national level.

Developing robust and comprehensive analytical methods to size and quantify subvisible particles in biopharmaceutical products.

An examination of rationales and core practices of first-grade Worldview/Religious Education teachers focused on their students' philosophical identity development

This thesis comprises four closely related interpretative studies and set out to answer the compound question: ‘How do teachers interpret their classroom interactions in terms of their pupils’ best interest?’

The Institute for Advanced Study has appointed astronomer and chemist Ewine Fleur van Dishoeck to its Board of Trustees, effective 5 May, 2018.

Five projects with researchers from Leiden University have received a grant from the Dutch Research Council (NWO) to build or upgrade existing research facilities.

Lecture

The brightness peak of the ring around M87's supermassive black hole has shifted 30 degrees counterclockwise in a year. This is shown by new images released by the Event Horizon Telescope consortium.

Res Publica is a Dutch language journal for political science, public administration, European and international politics, political sociology, and communication science.

The Schengen countries officially abolished border controls, but checks actually still exist. Maartje van der Woude has written a book about these veiled border controls: ‘The danger is that Schengen will have lots of borders, just not visible ones.’

Large pairs of planets thought to orbit each other without a star, do not exist after all. That conclude Leiden researchers, after extensive computer modelling and simulations. What the double dots seen by the James Webb Space Telescope are, remains a mystery.