This paper examines cyber intelligence in the context of national and international security.

Women in International Security -Netherlands (WIIS-NL) is an affiliate of WIIS Global. WIIS-NL Members include: professionals, civil servants, academics, NGOs, employees of international bodies and organizations, embassy staff, politicians, students, and interested members of the general public. The…

How can misleading graphs be effectively corrected, specifically for people with low graph literacy?

How does contemporary art and culture represent nuclear contamination in post-nuclear landscapes?

The second and final volume of this co-authored study has just been published by J.B. Metzler. This second monograph explores the history of the concept of barbarism in the twentieth and twenty-first centuries.

LUC alumni are socially responsible, versatile leaders, qualities which make them well placed to pursue selective internships and careers. Provided with an inter-disciplinary background and a solid skillset, opportunities for our alumni are plentiful. Our alumni praise the emphasis on flexibility and…

Psychiatrists in Morocco can't ignore Islam. Driss Moussaoui was one of the first modern psychiatrists in this North African country. He delivered the LUCIS annual lecture on 12 April.

A group of single-celled organisms organises its DNA in a similar way to higher organisms such as plants, animals, and fungi. However, the way packaged DNA is read out differs between the two related groups, Bram Henneman discovered. PhD defence on 5 December.

For only the second time ever, astronomers have linked a neutrino to an object outside our Milky Way. These observations were made using telescopes both on Earth and in space. The researchers, including Leiden astronomer Sjoert van Velzen, were able to trace the neutrino to a black hole that is devouring…

All supermassive black holes in the centres of galaxies appear to have periods when they swallow matter from their close surroundings. But that is about as far as the similarities go. That's the conclusion reached by British and Dutch astronomers from their research with ultra-sensitive radio telescopes…

Molecules are extremely hard to see in visible light, especially without using fluorescence. Leiden physicists have now made their optical technique sensitive enough to image the molecules of their interest in all sizes. Publication in Nanoletters.

Research of the Leiden Institute of Chemistry into the development of a sustainable fuel cell has accidentally resulted in an exceptionally efficient catalyst for the production of hydrogen peroxide. The catalyst, discovered by Dennis Hetterscheid and PhD candidate Michiel Langerman, may lead to a more…

The financial system needs complexity theory to predict economic crises like the 2008 meltdown. An international team of scientists, including Leiden physicist Diego Garlaschelli, state this in a paper published in Science on February 19th.

An international team of astronomers from Leiden Observatory and others, has for the first time mapped a piece of the dark, cosmic web. The research strengthens the hypothesis that the young universe consisted of huge numbers of small groups of newly formed stars. The astronomers publish their findings…

In 2015, Jorryt Matthee thought he discovered an extremely distant galaxy called CR7, which lacked elements heavier than helium. Three years later, he shows with measurements using the ALMA telescope that the galaxy does have carbon after all, and even in normal concentrations. The American Astronomical…

On 7 October, a court in Athens, Greece, convicted leaders of the far-right Golden Dawn party as directing a criminal organization. Marina Terkourafi, professor of Sociolinguistics, discusses the landmark ruling for the Leiden International Studies Blog.

Premature babies almost always require treatment with medication. Doctors usually determine the dosages based on data from children who were not born prematurely, while preterm infants often develop differently. Medication researcher Aline Engbers investigated three commonly used drugs, focusing on…

Korea specialist Koen De Ceuster has combined 1200 posters from North Korea in one database. He believes the posters are extremely valuable for researchers who want to make a more in-depth study of this closed country. The database will be launched on 15 June in Leiden.

The human trafficking of Eritrean refugees is a booming business, where money is made with smuggling people, but also using violence, hostage situations and even torture. Modern communication methods like money transfer via mobile phones play a vital role in this, conclude professor Mirjam van Reisen…

Rare-earth materials are prime candidates for storing quantum information, because the undesirable interaction with their environment is extremely weak. Consequently however, this lack of interaction implies a very small response to light, making it hard to read and write data. Leiden physicists have…

The state should prepare 'lifers' better for returning to society, for example by giving them some control over their own lives. This is the finding of Marieke Liem in her book 'After Life Imprisonment', published on 19 August.

Astronomy departments at Dutch universities is among the top of the world rankings for astronomical institutions. This is the conclusion drawn from a recent evaluation of the Netherlands Research School for Astronomy (NOVA) and the astronomy institutions of the University of Amsterdam, the University…

Using a clever experiment, PhD candidate Shengxiang Yang discovered how gold electrodes convert water into oxygen. He is the first to unravel the mechanism of this reaction. Yang published his results in the journal ACS Catalysis.

The immune system plays an important role in the development of atherosclerosis, the underlying cause of cardiovascular diseases. Thomas van der Heijden has discovered that immunosuppressants may play a preventative role. PhD defence 19 December.

Building the neutrino detector KM3NeT on the Mediterranean Sea floor has picked up pace. Five detection lines, each carrying eighteen detectors, have been sunk and installed, and the first measurement data are coming in, says neutrino physicist Dorothea Samtleben.

The Italian physicist Andrea Morello is one of the pioneers of the quantum revolution. He is currently doing research at the University of New South Wales in Sydney, but cherishes his time as a PhD candidate in Leiden.

There are currently two projects in Coptic Studies that are supported by the NVIC. Both are directed by Dr. Karel Innemee and both take place in the Wadi Natrun.

New research report and policy brief by Carolien Jacobs (VVI) and Bernardo Almeida (VVI)

A team of researchers at the Institute of Biology Leiden, in collaboration with scientists from Utrecht University, has discovered a novel approach to improve the production of antibiotics and enzymes in the soil bacteria Streptomycetes.

Extreme Scoring, the research project by ACPA PhD Michael Drapkin, calls for increased emphasis on chamber orchestras as a way of preserving the symphonic works of the classical music canon and expanding them to new audiences.

On 18 July 2018 former President of South Africa Nelson Mandela would have been 100 years old. In 1999 the anti-apartheid activist received an honorary doctorate from Leiden University. His response was modest: 'This is not a personal achievement. It is a tribute to all those who were involved in the…

Esteban Szmulewicz, a PhD candidate at the Department of Constitutional and Administrative Law, spoke at the annual Salzburg Global Weekend, organised by the Salzburg Global Seminar with the theme 'Democracy on the Front Lines'. Key speakers included Nobel Peace Laureate the Ukrainian Civil Rights defender…

Astronomer Koen Kuijken and physicist Tjerk Oosterkamp have each been awarded a major subsidy by NWO. The funding will allow them to construct new research facilities.

Just behind the entry gate of Angkor Wat, known as Gopura 4 West, through which every year millions of tourists enter the most iconic temple of the UNESCO World Heritage Site, ground-penetrating radar surveys revealed a set of masonry structures: six ‘tower’ bases in geometrical alignment, possibly…

Classics alumnus Ilja Leonard Pfeijffer has won the Libris Literature Prize this year with his book La Superba. The Libris Literature Prize is one of the most prestigious awards in Dutch literature.

Archaeologist Roos van Oosten is studying Leiden's medieval cesspits. And on the basis of her work she reaches a surprising conclusion: the Middle Ages were no means as filthy as you might think.

'A great result for the effect of Pokémon Go on children with autism', says Carolien Rieffe in the Dutch newspaper De Volkskrant. 'Although we do not know whether the game will lead to friendships in the long term.'

The KNMI issues weather warnings in various codes depending on the weather's risk to people's safety. Below, you can read what the university and faculty follow for these codes.

Ralph Keuning, the former director of Museum de Fundatie, a museum for the visual arts in Zwolle, stepped down in 2022 following complaints about authoritarian leadership. On top of that, an independent investigation has shown that he received almost €200,000 from the struggling museum after his departure.…

From 20 to 23 June 2024, the prestigious Hugo Sinzheimer Moot Court Competition took place in Vienna. Students from Leiden Law School also participated.

The Hague Journal of Diplomacy regularly publishes reviews of recent books within the field of diplomacy and global affairs.

The Food Citizens? team has contributed in the special issue of the ICA journal. The semi-scientific journal of the study association Itiwana of Leiden University's Institute of Cultural Anthropology.

The Leiden physics institute LION has bought a painting by the American physicist Gregory Horndeski, who wrote a brilliant article about gravity in 1974. After being ignored for 35 years, Horndeski's paper became a huge hit among cosmologists, unbeknownst to Horndeski himself, who had made a career…

When the government introduced its corona measures, the future of EL CID suddenly looked uncertain. But this annual introduction week will start on 5 August after all. How did the EL CID board pull this off? A glimpse behind the scenes through the eyes of chair Mirte Haanappel.

Studying the impact of urbanisation on the respiratory health of past Dutch populations (1200-1850 CE).

Our mission is to recognise and treat stress and anxiety in children as early as possible, by connecting scientific research, clinical practice and education.

The worldwide race to the quantum computer is in full swing. This computer can take on computing tasks that we can only dream of today, such as finding proteins that can be used as medicines in seconds flat. Leiden physicists have discovered how the Majorana particle can be used as a building block…