Last year, 15.8% of all employees of Leiden University experienced undesirable behaviour. This is one of the findings of the 2021 Personnel Monitor. ‘That number is far too high. We have to get rid of the taboo on raising this issue and addressing offenders,‘ says Martijn Ridderbos, in an open and…

So much has happened this year! 2023 was an eventful year in which several wars raged about which our experts could offer interpretation. It was also the year in which the government made apologies for the slavery past. Leiden humanities scholars were at the forefront of this with their research on…

After a process of more than two decades, the new Greek-Dutch dictionary was presented on Wednesday 5 June. University lecturer Lucien van Beek acted as manager of this project headed by Ineke Sluiter for the last nine years. He is also one of its editors-in-chief.

By far the majority of users of child sexual abuse networks (or child porn forums as they are sometimes called) on the dark web do not actively communicate there but download illegal material, therefore committing a criminal offence. But they often stay under the police and judiciary’s radar. PhD candidate…

Of je nu appt, online nieuws leest, of door Instagram scrolt, jouw gedrag wordt gemonitord. Sterker nog: wát jij ziet, wordt door anderen bepaald. Promovendus Aleksandre Zardiashvili onderzocht de impact van online advertenties en de macht van de bedrijven erachter.

Astronomers led by Leiden PhD candidate Richelle van Capelleveen have, for the first time, discovered an exoplanet that has carved a bright gap in the protoplanetary disc around its star. This rare observation provides new insights into how young planets shape their surroundings.

Last week on Monday evening, four international Leiden Law School alumni working in various sectors and areas of expertise came back to their alma mater to talk to current students. So who are these alumni?

Mark Rutte: an exceptional politician whose time was up. What are the consequences of Rutte’s departure. Experts from Leiden University give their view on this political event.

Following in the footsteps of Professor Jan Zaanen, visiting fellow Louk Rademaker is exploring quantum effects in so-called strange materials. His research is paving the way for new materials that could be used in emerging technologies.

It’s a given that in bankruptcy cases in the Netherlands, banks and the Dutch Tax and Customs Administration are prioritised as creditors. But not only is this outdated – there’s also another way to go about it, as revealed the PhD research conducted by Assistant Professor Ruben van Uden.

An international team of astronomers led by Dutch scientist Martijn Oei has discovered the largest pair of jets from a black hole ever seen. The 'jumbojets' extend a combined length of 140 Milky Ways. The Leiden Observatory played a prominent role in this research. The publication will feature on the…

On 30 April, Prime Minister Mark Rutte was presented with the manifesto of the NWO Youth Challenge, which contains advice for policymakers, scientists and administrators on the empowerment of youth in the time of coronavirus. The manifesto is based on research questions submitted to the science community…

How do migrants navigate key life events? Researchers from the Living on the Other Side project looked at the experiences of migrants who have settled in Morocco. During a recent tour through Morocco, they shared their insights with respondents and fellow researchers.

The highly successful deep-sea telescope KM3NeT can now expand both its size and scope. Using a new type of microphone for underwater use, the telescope will attempt to detect the sound produced by neutrinos as they travel through the sea. The data collected will also be of great interest to other research…

We need to be quicker and better at discovering side effects. In her inaugural lecture, Agnes Kant, Professor by Special Appointment of Innovation of Pharmacovigilance, calls for more research on these adverse effects.

The Special Issue, edited by Jorrit Rijpma, Melanie Fink, Kristof Gombeer, and Anna Petrig, contains a selection of contributions from the Conference organised by the Europa Institute on the topic of the EU and Maritime Security in October 2018.

As a Leiden University’s master’s student in Political Science you conduct independent research and report your findings to fellow academics and, who knows, to a larger audience. Your thesis is a showcase of your academic skills and personal interest, and perhaps even passion. Easier said than done,…

Eight early-career researchers from around the world have been awarded a 51 Pegasi b Fellowship – a prestigious opportunity for astronomers. Julia Santos, a PhD candidate at Leiden Observatory, is one of them. We asked her four questions about this remarkable fellowship.

Organisation

Researchers from Leiden University have developed a method to predict which sellers will be successful in illegal online marketplaces. This could help the police track down big players on the dark web, the hidden part of the internet.

Maghiel van Crevel has been elected member of the Royal Netherlands Academy of Arts and Sciences (KNAW). The professor of Chinese Language and Literature will be installed on Monday 12 September 2022.

Organisation

Dutch retailer Blokker has gone bust. But a restart could be possible depending on the trustee. Research conducted by Jessie Pool and her colleagues has shown that one third of all bankruptcy trustees would prioritise saving the high street.

The highly successful deep-sea telescope KM3NeT can now expand both its size and scope. Using a new type of microphone for underwater use, the telescope will attempt to detect the sound produced by neutrinos as they travel through the sea. The data collected will also be of great interest to other research…

While humanities once mainly involved books and archives, nowadays we can’t imagine life without AI. Next semester a new faculty-wide course will be introduced, taking you along with this development. University lecturer and course coordinator Yann Ryan tells us more about it.

An international team of astronomers has shown that a white dwarf and a red dwarf orbiting each other every two hours are emitting radio pulses. Through the discovery, astronomers now know that the monopoly on bright radio bursts is not solely held by neutron stars. The team of international scientists…

Global Transformations and Governance Challenges (GTGC) will hold its first international conference on 8-10 June 2022 in The Hague. Deadline submissions: 22 April 2022.

The Yemen Amsterdam Library, or Maktabat al-Yaman al-Amstirdāmīyah, of eminent Yemen specialist Dr C.G. Brouwer has now been fully integrated in the collections of Leiden University Libraries (UBL). Books and other documents from the collection are now available for loan via the UBL Catalogue.

During the week of 15 November, Little Amal, the larger-than-life doll visited The Hague. Naturally she received a warm welcome by Leiden University during her visit. Little Amal (art project The Walk) was invited by Amare.

Assistant Professor Vedran Dunjko and his team receive a €100,000 gift from Google to support them in their quantum research. The research focuses on whether quantum computers can provide new ways of understanding the mysteries of high-energy physics. Google is committed to supporting ambitious research…

Veelgestelde vragen privacy en security

How can you ensure that your research hits the headlines? How can you bring your research output, such as PhD research or a publication, to the attention of the public?

Public agencies are keen to use new technology such as AI to speed up their primary processes. But the internal organisation is often a major stumbling block. SAILS researcher Friso Selten conducts research at the interface between data science and public administration.

An international research team is to search for invisible life in the Galápagos Islands. The diversity of bacteria and other microscopic organisms may not be evident to the naked eye, but it is essential to nature. To the islands' giant daisies, for instance: unique endemic plants that are currently…

Why do some smokers quit much more easily than others? Can we think ourself to insomnia? And does playing music together help to calm conflicts? Psychology students investigated these questions and presented their findings during the Psychology Science Day 2023.

Sieger van den Aardweg is Knowledge Base Manager for the Grant Development Team at the Strategy and Academic Affairs Directorate, part of Administration and Central Services. He is working within the Leiden Research Support programme on tailored information provision, in collaboration with several institutes.…

Conference

From malaria parasites as a vaccine to how top-level bureaucrats reach their decisions: seven researchers from Leiden University have received a Vidi grant from the Dutch Research Council (NWO). This 800,000-euro grant will enable them to develop their own innovative line of research over the next five…

Professor Jan Willem Erisman is happy with the freedom at our University. But frameworks are needed, he believes. That is why he makes a proposal for such a framework from the perspective of his own profession. In fact, he makes a proposal for a wonderful ambition for Leiden University.

With the help of the JEDI fund, Fatima al Moufridji and Thijs Porck went in search of cultural contacts between early medieval England, Northern Africa, and the Middle East. Together they made four knowledge clips that can now be seen on YouTube.

An international team of astronomers has discovered a large reservoir of hot gas in the cluster-in-formation around the Spiderweb Galaxy. Based partly on that hot gas, the astronomers predict that the cluster-in-formation will grow into one of the largest objects in the universe. A step closer to discovering…

The steady decline in lethal gun violence in the EU came to halt in 2012 and some countries, such as Sweden, have even noticed an increase since then. An arms race among drug criminals and an increase in the availability of illegal firearms could lead to more criminal and gun violence. This is one of…

How do you detect people at high risk of heart attacks and strokes? And how can we improve the treatment of atherosclerosis? These are the questions that keep LACDR researcher Marie Depuydt busy. She is investigating the immune cells that contribute to the worsening of atherosclerosis. ‘It's a challenging…

From telescopes to science fiction: in just one semester, students with no background in physics or astronomy get to explore the universe. The first group of students started last month in the new minor Our Universe.

Leiden University will award two honorary doctorates at its Dies Natalis on 9 February 2026. They will go to internet studies scholar Safiya Umoja Noble and philosopher Catherine Malabou.