The formation of stars and planets happens over multiple scales, which can interact. In particular, planet formation happens in the dense, complex environment of star forming regions.

Supervisor: S.F. Portegies Zwart Co-Supervisor: A.G.A. Brown

In this project, researchers from computer science, law, psychology, and public administration research in practice how artificial intelligence (AI) can be leveraged to make decision-making in the security domain more effective, while also keeping it safe and accountable.

Chenyu Cheng defended her thesis on 6 April 2017.

Brain research and statistics are advancing our understanding of language and language acquisition. Linguists are still essential, however, says Professor of Dutch Linguistics Sjef Barbiers. Inaugural lecture on 8 December.

Leiden University Centre for the Arts in Society (LUCAS) invites applications for a PhD position within the project ‘Libraries as Links in Learning: Making the Meaning of Manuscripts’ (1.0 fte, 4 years). The PhD candidate will track changing professional and scholarly practices and attitudes towards…

Jack Segbars publishes 'Artistic Production in the Context of Neoliberalism, Autonomy and Heteronomy Revisited by Means of Infrastructural Critique' in PARSE, Issue 9.

Leiden Physicists have found evidence for the Berry-force that could be used for driving tiny nanomotors, just like a river drives a water wheel. Nanomotors could be used for drug delivery in the human body. Publication in Beilstein Journal of Nanotechnology.

In higher education intermediate assessment is used in different ways. In her PhD research Indira Day (ICLON) shows that lecturers should be able to continue to have the freedom to use various test forms, because not one type of test is optimal. Defence on June 28, 2018.

Whereas the Netherlands Court of Audit used to conduct an investigation once a year, the average civil service organisation now has a few per year to contend with. Is so much going wrong nowadays? Not at all, says Professor by Special Appointment Sjoerd Keulen. ‘It’s one of the methods that makes democracy…

‘If it rains later, then I’ll take the car.’ In order to reason, we use sentences containing ‘if’ every single day. But how does that work exactly in the Dutch language? Alex Reuneker wrote his 628 page dissertation on the subject. Ceremony on 26 January.

Promotor: W. T. F. den Hollander, F. H. J. Redig

With the emergence of social media platforms such as Twitter, Facebook and Instagram, it’s easier than ever to share information. Including disinformation. During his PhD computer scientist Xueqin Chen developed a new way to recognise fake news and predict how messages spread within online social networks…

What does a 19th-century exhibition of traditional utensils from the province of Zeeland tell us about the current rise of populism? A lot, Ad Maas will say in his inaugural lecture.

A brief review essay on some of the work that has been recently published in the emergent field of digital ethnography.

A new computer simulation shows the promising possibilities of the booming field of topology. Smartly designed mechanical structures carry sound exclusively one way and are immune to fabrication errors. Publication on 17 July in Nature Physics.

Using the Dutch-led Low Frequency Array (LOFAR) radio telescope, astronomers have discovered unusual radio waves coming from the nearby red dwarf star GJ1151. The radio waves bear the tell-tale signature of aurorae caused by an interaction between a star and its planet. The radio emission from a star-planet…

Rigid materials break more easily than floppy ones. This simple observation allows to predict and control the width of cracks. Theoretical understanding of how materials break is useful in for example the production of cars or screens. Publication in PNAS.

Researchers from Japan and the Netherlands who were previously involved in the discovery of an exoplanet with huge rings have now calculated that the giant rings may persist more than 100,000 years, as long as the rings orbit in the opposite direction to that of the planet around the star. Their findings…

For centuries astronomers studied the Universe by collecting light. Nowadays, we are living in times of great technological advancements, which allow us to explore our Universe in a new way - though gravitational wave radiation.

For centuries, astronomers have studied the universe by collecting light signals. Since 2015, the confirmation of an important prediction of Einstein allows us to explore the universe in a new way: through gravitational wave radiation. Astronomy PhD candidate Valeriya Korol proposes to use these gravitational…

What is dark matter? How do supermassive black holes form? ‘Primordial’ black holes might hold the answer to these long-standing questions. Leiden and Chinese cosmologists have identified a new way in which these hypothetical objects could be produced just after the Big Bang. Publication in Physical…

Five of the new Medical Delta professors who now hold an appointment at multiple institutions are affiliated with Leiden University/LUMC. They are psychologist Andrea Evers and four LUMC professors.

Tax collection has become highly complex and the system is creaking at the seams. Is there an easier way to collect taxes? This is the question raised by Rex Arendsen, Professor of Tax Law, in his inaugural lecture on 16 September.

Scientists have developed a material that breaks one of the fundamental principles governing many physical systems. Ordinary materials transmit external forces equally, no matter where the pressure comes from. The newly developed material breaks this rule and could potentially be of interest in soft-robotics…

In important cases before the Court of Justice of the European Union (ECJ) in Luxembourg, judgments are preceded by an Opinion of an advocate general. These Opinions are not binding on the Court, but are highly influential in practice.

Prof. Andrea Evers is a health psychologist who studies the role of behavioural factors in health and disease. As a Medical Delta Professor, she is now affiliated with Leiden University, TU Delft and Erasmus University. In that position, she conducts research at the intersection of various disciplines.…

A new chair has been added to the partnership between Leiden University and the Royal Conservatoire The Hague. Richard Barrett has been appointed Professor of Research in Creative Music (ACPA) as of 1 December 2020. 'For me it is important that music and academia are not placed in an ivory tower.'

Two Leiden University science communication projects have been awarded a WECOM grant through the Dutch Research Agenda (NWA). One project is a study of the history of the deaf community in the Netherlands and the other is of a condition that causes people to lose their way.

Quantum games aren’t just a fun way to explain quantum physics — they may also unlock new discoveries. According to physicist Evert van Nieuwenburg, these games create structure and clear rules. Simply playing them can even contribute to better quantum software.

How can the importance of the image in late medieval spirituality be understood in the context of the love mysticism inspired by the imagery of the Song of Songs?

In his PhD research in the field of public administration, Mark Reijnders looked at why people do not receive the help they need. They lose their way in the labyrinthine support system or become bogged down in bureaucracy. In public administration this is known as non-take-up of social care. PhD defence…

In recent years, artificial intelligence has deeply permeated our society and the legal field is no exception. Bart Custers, Professor of Law and Data Science, spoke to ‘Mr. Online’ about AI and the law: ‘AI is currently a hype.’

When do we say violence was used in an incident? The answer may seem obvious at first. But interim results from a study by Jolien van Breen show that Dutch people are labelling events in increasingly broad contexts as violent.

Everyone has heard arguments like this before as a child: ‘Whether you like it or not, you have to go to school!’ It seems as though you are presented with two options, but there is only one real outcome. Charlotte van der Voort of the MA Dutch Studies won the Leiden University Thesis Prize on her research…

Her love for China made her study Chinese and go on an exchange trip in her third year of studies. As an Outbound Student Coordinator at the Humanities International Office, Karin Aalderink (45) now supervises students who go abroad.

This year, in a three-part symposium series, we are exploring how interdisciplinary collaboration can be promoted at the university. In the second session in March, the attendees discovered that understanding your rhythm and perspective is essential when embarking on an interdisciplinary project.

Antibiotic-resistant bacteria are a major problem worldwide. Molecular biologist Changsheng Wu explored innovative methods of developing new antibiotics more simply and more easily. He also discovered a new type of antibiotic.

A secret code that we currently use to send e-mails securely is based on the maths of a century ago. The geometrical surfaces that Dino Festi studied during his PhD research will perhaps be used in future codes or new physics. PhD defence 5 July.

Microplastics are everywhere: in the ocean, in cooking salt and even in animals. Should that worry us? 'Yes,' said environmental scientist Thijs Bosker during a pop-up lecture in The Hague on 8 September. ‘We really need to do something now, not wait until it becomes an even bigger problem.’

Edwin Bakker, invited speaker, at The EU conference on the future of higher education on March 9, 2016, advocated in his presentation ‘MOOCs as drivers of change: The teacher’s perspective’ for an open and positive attitude to digital learning environments and to leverage the potential of technolog…

How do you find your was as an early career researcher in the academic pressure cooker?

In the ESOF2022 mini-symposium organized by the Social Resilience & Security programme, international experts with a background in psychology, philosophy, and law discussed how the online world is related to adolescent mental health issues, moral and emotional awareness and children’s rights. In three…

A delegation from Leiden University visited the Netherlands Institute Morocco (NIMAR) in Rabat at the end of February.

Sixteen master’s students from a variety of disciplines are helping The Hague Police to find new clues in a cold case.

Now that the Herta Mohr building is fully operational, construction work is moving to the other side of the University Library. Over the coming years, the former Matthias de Vrieshof will be transformed into the Aleida Nijland building. Architect Bart van Kampen tells us more about the plans.

This project investigates how the first generation of Dutch printed books (the incunabula, 1473-1501) affected late medieval spirituality, religious practice and visual culture in the Low Countries.