PhD defence

PhD defence

In 2021 many of our students and staff won fantastic prizes and were awarded important research grants. This is our traditional review of these successes as the end of one year marks the beginning of another.

To be eligible for Astronomy at Leiden University, you must meet the following admission requirements.

To be eligible for Astronomy and Education at Leiden University, you must meet the following admission requirements.

From 23-25 August the Child Abuse & Violence Congres ‘ Broken 2018’ took place. Mariëlle Bruning was one of the keynote speakers and talked about the child’s right to protection against all forms of violence and the implementation of this children’s right in domestic child protection systems.

Julia Cramer is the winner of NWO's Minerva Prize for 2017. Cramer will receive the prize for her research in the field of quantum science and technology.

Hoping to learn something about the human brain, Leiden researchers are creating a setup to shoot single photons, particles of light, into someone’s eye. ‘The eye is a passageway to the brain.’

The Science faculties of Universitas Indonesia (UI) and the Universiteit Leiden signed agreements on Tuesday April 12 that will strengthen cooperation between the Faculties. The agreements were signed at the closing of a two day visit of a delegation from Indonesia. The delegation, which was led by…

Graphene and other layered materials combine into completely new substances. Leiden physicists establish the ground rules for designing such materials by measuring how the layers in the stack interact. Publication on November 29 in Nature Communications.

There are miniaturisation beams, microrobots, and ice skaters who suddenly drop into a hole in the ice. Students of the local MBO Rijnland let their imagination run free while animating Leiden physics research. The result is eleven surprising and very diverse science animations.

The Leiden University Medical Center (LUMC) will start construction this year of the largest non-profit stem cell and gene therapy facility in the Netherlands, and one of the largest facilities in Europe. NECSTGEN – the Netherlands Center for the Clinical Advancement of Stem Cell and Gene Therapies…

The fastest chemical reaction in the universe takes place inside our eyes.

Leiden physicists and international colleagues from Geneva and Barcelona have confirmed the mechanism that makes magic-angle graphene superconducting. This is a key step in elucidating high-temperature superconductivity, a decades-old mystery central to physics, which may lead to technological break…

The seventh Leiden wall formula has been finished. Over the last few weeks, mural artists Ben Walenkamp and Jan Willem Bruins have painted Christiaan Huygens' pendulum formula on 'De Brandmeester' an old drill and hose tower in de Plaatsteeg, just behind the Breestraat in Leiden.

On Thursday 3 November Leiden University will celebrate the official opening of two wall formulas in the city centre. As of now, Snell’s law and the Lorentz force formula shine on two walls in the heart of Leiden. They are part of a project to display at least ten groundbreaking formulas with a Leiden…

For the first time, physicists have visualized the ‘melting’ of electrons inside a special class of insulators. It allows electrons to move freely and turns the insulator into a metal and possibly later into a superconductor. Publication in Nature Physics.

Not only does she excel at her research, she is also active in outreach and started a collaboration outside her own field during her PhD. Yevheniia Cheipesh has been awarded the first prize in the For Women in Science Rising Talent Prize by L’Oreal, UNESCO and the Royal Holland Society of Sciences and…

An international group of scientists, led by Leiden physicist Sense Jan van der Molen, has developed the first switchable molecular diode. You can turn this on and off through humidity. Vice versa, it is a humidity sensor at the nanoscale. Publication on 4 December in Nature Nanotechnology.

Ionic liquids are important in scientific research because they can apply a lot of charge over a surface. Leiden physicists have now found that the charging process of ionic liquids purely depends on opposite charges attracting each other. Chemical reactions are sometimes involved, but not essential.…

Publish Your Reviews is an initiative encouraging peer reviewers to share their reviews and to contribute to open science and transparant research communication.

Radio telescope LOFAR maps the sky. It produces incredibly detailed images of the universe - and vast amounts of data. Huub Röttgering, director of the Leiden Observatory, talks about the challenges of working with those enormous datasets.

On Friday 28 October, Leiden University organized its annual Physics Ladies Day for female high school students. To mark this festive day, we put the spotlight on four female researchers, who talk about their experiences in physics.

Leiden Physicists have developed a new technique to visualize electrical conductance in sheet-like nano materials. It shows great promise for devices based on a new family of materials—the ‘Van der Waals materials’. The physicists, who won the 2015 Dutch Vacuum Society prize for their work, present…

As of 1 February prof. Mariëlle Bruning, dr. Stephanie Rap and Denise Verkroost LL.M. will start the second part of the research project concerning the participation of children in youth care.

Although smartphones and other consumer cameras are increasingly used for scientific applications like citizen science, it’s still difficult to compare and combine data from different devices. PhD student Olivier Burggraaff developed a new easy-to-use standardised method which makes it possible for…

Former PhD student Cameron Mackie will been awarded not one, but two dissertation prizes for his thesis on the aromatic universe. His work could provide us with a virtual sniff of space. ‘These molecules in space likely smell like a big charcoal grill!’

Elena Bondarouk, Assistant Professor at the Faculty Governance and Global Affairs, obtained her PhD on 27 August for her thesis on the local implementation of EU air quality policy. Her research has been included into the 'Europa decentraal' database, a Dutch governmental knowledge centre for queries…

The American security services brought down American President Nixon, not the media as people generally believe. Andrew Gawthorpe, researcher on diplomacy and American foreign policy, hopes that the security services under Trump also make the right decision.

Simona Demková of the Europa Institute recently participated in the inaugural Czech-Slovak symposium on the challenges of artificial intelligence for administrative law, titled 'Co roboty rozhodovat nenecháme?' ('What Shall We Not Let Robots Decide?'), held on 7 March 2025, at Charles University's Faculty…

High-quality education, research involving multiple faculties, collaboration between universities and central government funding to make all this possible: these were the topics covered in a working visit of the Standing Committee for Education, Culture and Science (OCW) to the Association of Universities…

BrainTrain: an initiative from Leiden University in which a team of students visit high schools to make adolescents more resilient against disinformation on the news and on their socials. In an interactive two-hour guest lesson, high school pupils discover how easily their brains can be tricked into…

Thirty years ago, pioneers of the internet expected that this new technology would be a force for freedom, democracy, justice and peace. Yet today digital communications often involve human rights abuses, criminal activity, disinformation, gender-based violence, and cyber warfare. How can we turn these…

Recent developments in AI mean nobody is anonymous nowadays. The search engine PimEyes can find any photo of anyone that’s ever been placed online. No more Tinder Swindlers… or personal privacy. Everyone’s findable now. But is that even allowed?

Tech company Eyeball collects images and data on young amateur football players on a large scale. But is this allowed? Bart Custers, Professor of Law and Data Science, and Gerrit-Jan Zwenne, Professor of Law and Digital Technologies, comment on the issue in ‘NRC’ newspaper.

Electrons in graphene behave like light particles; they have no mass and can penetrate everything: very useful if you dream about nano-electronics. But you do have to channel them. Carlo Beenakker will be researching how. He has been awarded an ERC Advanced Grant of 1.5 million euro to carry out this…

Leiden University celebrated its 444th anniversary with a historical procession on 8 February. It celebrated this year’s Dies Natalis in time-honoured fashion with a ceremony in the Pieterskerk, but broke with tradition by sending professors out to primary schools.

The Dutch Research Council (NWO) has awarded Vidi grants to Leiden researchers.

Three major research projects involving Leiden scientists have been awarded a grant from NWO’s Gravitation Programme. The projects are on innovation processes, organs-on-chips and quantum software.

Lecture, Lunch Research Seminar

More than twenty years ago, Hurricane Katrina devastated the southern United States with nearly 1,400 deaths. Due to climate change, the lessons from this disaster are more relevant than ever, but the Trump administration seems to be ignoring them by cutting funding for disaster management. Anthropologist…

In 1925, two young physicists from Leiden University, George Uhlenbeck and Samuel Goudsmit, proposed a radical idea: spin. Their bold hypothesis quickly came to play a key role in physics and formed the basis for later breakthroughs in quantum mechanics. We are celebrating the anniversary of this discovery…

Dr Gianclaudio Malgieri, Associate Professor at eLaw – Center for Law and Digital Technologies, has been appointed Co-Rapporteur for a new joint project of the European Law Institute (ELI) and the American Law Institute (ALI): 'Principles for the Governance of Biometrics'. The project aims to formulate…

Recently, Hart Publishing published the book Rewriting Children’s Rights Judgments, From Academic Vision to New Practice edited by H. Stalford, K. Hollingsworth and S. Gilmore.

On 18 October 2017, Leiden Law School was honored to welcome a group of experts upon invitation of Prof. M.R. Bruning, professor of Child Law and head of the Child Law Department of Leiden University, to discuss current and future research projects in the field of international child abduction law and…

The Faculty of Science is located at the Leiden Bio Science Park. It was founded more than two centuries ago and currently, more than 8000 people are working and studying at the eight institutes.

Combining different disciplines, researchers work together to formulate innovative solutions to societal problems.

Twenty years from now, the world population is estimated to be around 9 billion people (now 8 billion). In combination with the improvements in living standards and the corresponding growth in consumption, this population will result in an enormous increase in the demand for food, consumables, water…