In astronomy, the interpration of observations and measurements plays a crucial role: we rely purely and fundamentally on the information that reaches us as observers. And 80% of all matter in the universe is undetectable directly.

Children and adolescents really do use their ‘smart’ brain areas. This has been confirmed by an extensive and long-running study of the brain carried out by developmental psychologist Sabine Peters . Her findings can have important consequences for education. PhD defence 27 January.

This thesis discusses the discovery potential of Intensity Frontier experiments.

Do you sometimes find yourself sweating in the classroom while your students are really relaxed? Do you find yourself answering your own questions more often than your students? Are your students mainly concerned with getting a good grade while putting in minimum effort?

With Leiden2022 drawing nearer, LeidenGlobal is busy developing extra activities to demonstrate the knowledge that is present in Leiden and to create interaction with a wider audience. With this valorisation, the partnership between several cultural and academic institutions in Leiden matches the theme…

She stands out for the moderate tone she takes in discussions on Dutch talk shows. Without judgement you can have an open conversation, criminal lawyer Natacha Harlequin learned in her student days in Leiden. ‘What I personally think of the alleged act doesn’t matter so much.’

Promotors: Prof.dr. J. Zaanen, Prof.dr.ir. H. Hilgenkamp

Upcoming activities by ACPA PhD candidates Paul Houdijk, Gabriel Paiuk and Magda Dourado Pucci

Ian Simpson is a relatively new face at the Faculty of Archaeology. Starting as an assistant professor in the Heritage and Society department in 2018, he is one of the faculty’s members in critical heritage studies and looks both at the past as well as the future. ‘I study how heritage can be employed…

For two years, Ineke Sluiter was president of the Royal Netherlands Academy of Arts and Sciences (KNAW). Now, she is returning to the university full time. ‘I always carry themes like accessibility, diversity and inclusion with me.’

Bringing young, enthusiastic and driven academics from different disciplines together, that’s the goal of the Young Academy Leiden (YAL). As a new member, Assistant professor Jan van Rijn is excited to look at AI from different perspective. ‘I want to bring my expertise together with different point…

Upcoming activities by docARTES candidates Tony Roe, Patrizia Bovi, Ned McGowan, Maximilian Haft and Nizar Rohana

Upcoming activities by PhDArts candidates Basma Hamdy, Danne Ojeda Hernandez and Joost Grootens

Adolescents who were more popular among their classmates in junior school are often the ones who are more inclined to share things fairly with others. During this sharing process, 'social' areas of the brain are more strongly activated than in adolescents who are less popular. This is the finding of…

George Floyd's death still leads to fierce protests against police violence and racism on a daily basis in the United States and abroad. We asked Paul Wouters how he experiences these developments and what this will mean for our faculty.

History can be found in utensils and in interviews with ordinary citizens. ‘With the reconstruction of everyday life, an anthropological approach works better,’ thinks historian Jan-Bart Gewald. Inaugural lecture on 6 June.

An international and multi-disciplinary research consortium spent two days at Leiden University for the launch of their ‘GOLD MATTERS’ project, funded jointly by NORFACE and Belmont Forum. The project 'Sustainability Transformations in Artisanal and Small-scale Gold Mining: A Multi-Actor and Trans-Regional…

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

Just a few weeks until a festival full of exciting science activities bursts into life in Leiden. From January the city will be European City of Science for 365 days. Many researchers are enthusiastic participants. ‘I see it as an opportunity to help people feel the joy of discovering something new…

n this PhD thesis, the recombination of different atomic lattices in stacked 2D materials such as twisted bilayer graphene is studied. Using the different possibilities of Low-Energy Electron Microscopy (LEEM), the domain forming between the two atomic layers with small differences is studied.

Lecture

ACPA Professor Marcel Cobussen will participate in an international workshop on the development of an MA in Sound Studies at the University of Nantes.

Glycoside hydrolases (glycosidases/GHs) are widely abundant enzymes in all kingdoms of life and are important biocatalysts that catalyze the hydrolysis of glycosidic linkages in oligo/polysaccharides, glycoproteins and glycolipids with tremendous efficiency

Exclusion elicits the same response in children as in adolescents and adults. That is what psychologist Mara van der Meulen found when she studied brain activity in primary schoolchildren. ‘What is new for us is that it is the same in childhood as later in life.’ Doctoral defence on 10 December.

Recently, Engin Yüksel gave a lecture on Russian military concepts from 1853 to the present day and his observations on the Russo-Ukrainian war at the Faculty of Humanities, premised on his recently completed doctoral research.

Disk formation around stars is an important factor in determining whether one or multiple stars evolve. But the big picture of star formation is still far from complete, says PhD researcher Nadia Murillo.

Beginning teachers often experience difficulties making activating lessons. This study investigates how and if the practical teaching model can offer them a hand in learning to design lessons.

PhD defence

Are you interested in ancient Egypt, the rich cultural heritage of Mesopotamia or bliblical Hebrew and Aramaic? Students of all faculties can follow electives of Ancient Near Eastern Studies without prior knowledge or special entry requirements. Archaeology student Annely Arends talks about her expe…

Health Day has won the LUF Relationship-Promoting Activities Prize (LUF RAP). This 5,000-euro prize is awarded to an initiative by Leiden University students that brings the academic community together.

Promotor: H.S. Overkleeft, Co-promotor: M. van der Stelt

A fresh semester means a fresh faculty calendar. There is plenty to do at the faculty again in the coming months. Five interesting activities are listed below.

The Hague City Council is discussing the implications for local politics of the verdict acquitting former councillors De Mos and Guernaoui of corruption. The court ruled that from a criminal law perspective there was no official bribery. The debate will mainly focus on whether De Mos' party ‘Hart voor…

Governments are increasingly cracking down on tech companies like X, Telegram and Clearview that flout the law, with a fine, ban or criminal prosecution. In practice, however, this has little effect. A tougher stance is needed, argues Bart Custers, Professor of Law and Data Science at eLaw – Center…

PhD defence

Promotores: Prof.dr. H.S. Overkleeft, Prof.dr. G.A. van der Marel

Lecture

This blogpost is a reflection of research assistant Marilena Poulopoulou on the food relief initiative she took part in between May and August 2020 in the city of Utrecht.

Promotor: J. Zaanen, Co-Promotor: V. Juricic

PhD defence

PhD defence

It must be there. We just cannot see it: mysterious dark matter and dark energy in the universe. Henk Hoekstra is one of the many cosmologists who would love to know what exactly these substances consist of. He has received a European research grant of 1.3 euro million to find out.

‘When I look back on the honours programme, all I can do is smile. It has transformed me into a student who thinks in terms of opportunities and solutions,’ said Roos ter Elst, student of Education and Child Studies, at the ceremony for the award of Honours certificates to bachelor’s students, on 6…

This thesis describes the development and optimization of the first molecular tools to study the enzyme PLA2G4E.

Inaugural lecture

Leiden physicists Alexandre Morin and Samadarshi Maity study self-organisation and flocking phenomena. They shed light on flocking, which helps to understand how it is possible that birds in a flock don't collide. With plastic microbeads, they create an experimental setup and they developed a mathematical…

Before the large scale use of renewable energy sources can be implemented in our society, the storage of electrical energy needs to be tackled. Storage the energy as hydrogen via the reduction of protons is a good option.

The Ra’s al-jinz project tackles economic diversification and social complexity in non-urban societies, from the perspective of Eastern Arabia, by exploring the Early Bronze Age settlement of Ra’s al-jinz RJ-3.

Packages of DNA strands containing silver, measuring just two or three nanometres in size. Leiden physicists Donny de Bruin and Dirk Bouwmeester create these packages, which can enter living cells on their own. They then activate the silver with light, causing the cells to break down. This could, in…