88 search results for “black holes” in the Staff website
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Verifying the correctness of mathematical theorems with a computer
How correct are mathematical theorems? And is all the theory around them correct? To find out, mathematics student Dominique Lawson converted a mathematical theorem into computer language. ‘This allows a computer to understand the theorem and check whether the proof behind it is entirely correct.’ The…
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Developing drugs with artificial intelligence
Developing new drugs is a difficult process. With the aid of artificial intelligence, Pharmaceutical scientist Xuhan Liu has developed methods that can help make drug design cheaper and faster. PhD defence on 15 February.
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Be alert when you scan QR codes
ICT
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This is how physicists contribute to the energy transition
Studying surfaces of solid materials: it may not seem relevant to energy consumption, but it is. Marcel Rost studies how platinum electrodes wear out. Those electrodes are a crucial component in the fuel cells of hydrogen-powered cars. ‘We need to make the switch from fossil fuel energy to hydrogen.…
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Leiden researchers on king’s apology for the Netherlands historical role in slavery
In a speech on Keti Koti the Dutch king, Willem-Alexander, apologised on behalf of the royal family for the Netherlands’ historical role in slavery. What is the significance of this?
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Help desks switch to inclusive salutation: ‘Times change, and we change with them’
Dear Sir or Madam? Many colleagues think that sounds out of date. That is why the hundreds of thousands of automated messages sent by university help desks every year will now include a gender-neutral salutation. This change is an extensive but important ICT job, says product owner Julian van der Kr…
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Algorithms and data behind Leiden Ranking in public domain
The Leiden Ranking – Open Edition is completely transparent. The ranking compiled by the CWTS uses open data and publishes the algorithms that are used.
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State Secretary Gräper visits to discuss cultural heritage and opening up collections
How should we address our colonial heritage? And how digital and accessible are our collections? Outgoing State Secretary Fleur Gräper spoke with researchers and heritage specialists about this on 25 January.
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New research into hidden nature in our cities
What hidden nature is there in our cities and how can we use such organisms? This is what the HiddenBiodiversity project will be exploring over the next four years. The project’s kick-off meeting was held at the Hortus botanicus on Monday 26 September.
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‘We have to stay alert and keep on feeling the past’
Space for open dialogue on historical slavery was created at the Keti Koti Table at Museum De Lakenhal, organised by Leiden University and the Municipality of Leiden. There, just metres away from 17th-century paintings, Leideners shared a ritual meal and spoke about the effects of slavery and our colonial…
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Enabling the most impact from Social Sciences & Humanities (SSH) research
Working Group
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Dutch state returns stolen artefacts: ‘Make sure to tell the full story’
The Netherlands returned 478 artefacts to Indonesia and Sri Lanka this week, on the advice of a Dutch committee. Rightly so, says Leiden professor Pieter ter Keurs from the Museums, Collections and Society interdisciplinary research programme. ‘But do make it clear why you are returning something.’
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A real professor in the classroom
It’s starting to become a real Dies Natalis tradition: on 8 February professors from Leiden University teach a class at primary schools in the region. This introduces children to academia and teaches them more about conducting research. ‘Had you expected me to be a woman?’
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Physicist Sense Jan van der Molen plays ‘Dutch shuffleboard’ with electrons
Physicist Sense Jan van der Molen researches materials that do not exist in nature. ‘It’s fascinating to see how the properties of a material change if we manage to make it super thin.’ He will give his inaugural lecture on 21 October.
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Life after the Grand Jamboree: Wrapping-up iGEM
‘A challenging rollercoaster, but also a very bonding and insightful experience,’ that’s how the team of iGEM Leiden 2022 wraps up their participation in the iGEM contest. The contest for synthetic biology climaxed during the Grand Jamboree in Paris. The team ended up in the top 10 of over 360 teams…
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Inventors with a nose for technology
Amidst the lathes and welding machines of the Fine Mechanics Department, Emiel Wiegers is working concentratedly on a metal cylinder. He and his colleagues design and construct components for researchers' set-ups. ‘We are a bunch of inventors who enjoy helping the researchers in our Faculty.’
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Sneaker Team part 2: ‘There is still a lot of work to do’
Joao Schim is a business analyst and together with his colleagues of the Sneaker Team, he walks through the buildings of the University for five months. These 6 experts are mapping all measurement and research systems, starting with the Faculty of Science. Joao tells us what he does and what catches…
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Leiden scientist addresses UN: 'People should not work for the economic system, the economic system should work for the people'
Environmental scientist Rutger Hoekstra addressed the General Assembly of the United Nations on 12 April. And that’s quite a big thing to do. How do you get there as a scientist? And, more importantly, what was his message? In eight questions, Rutger explains what he does and why.
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Alumna Natacha Harlequin: ‘When it really matters, I’m a lion’
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.’
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Jasper's Day
Jasper Knoester is the dean of the Faculty of Science. How is he doing? What kinds of things is he doing and what does his day look like? In each newsletter Jasper gives a peek into his life as dean.
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Tom Kouwenhoven wants to develop a bridge between AI and humans
It is a familiar phenomenon: you ask the assistant on your phone to call your mother, but it calls a friend instead. Tom Kouwenhoven, PhD student in the SAILS programme, investigates how humans and Artificial Intelligence (AI) can better communicate with each other, so that these kinds of situations…
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Physics in the picture: cancer cells as an explosion of fireworks
When you think of physics, do you think only of complicated formulas? You’re not the only one. Therefore, every year, the Leiden Insitute of Physics organises the LION Image Award to show another side of physics: beautiful images about intriguing science. The winner of the 2022 photo competition captured…
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Dangerous microbes in lower level safety lab? A new technique could make it possible
Researchers need to work in specialized environments when they work with dangerous bacteria and viruses. These microbes spread easily, so only in labs with a high biosafety levels they can be studied. Unfortunately, to look at the microbes properly, expensive microscopes are needed that are not always…
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Leiden students develop highly contagious card game
Infecting each other with viruses and bacteria while protecting yourself with medicines and vaccinations. Sounds like a fun evening, right? Master students Life Science & Technology Rafael Jezior and Dennis de Beeld certainly think so. Together, they developed ImmunoWars: an exciting card game based…
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Versatile antiviral proteins discovered with supercomputer
A single tiny molecule that can destroy flu, corona, HIV and Zika viruses? Yes, it really does exist. Biophysicist Niek van Hilten, who will receive his doctorate on 14 September, contributed to this discovery.
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Leiden Classic: 4 Questions on the origins of the university and the Dies Natalis
Every year around 8 February, Leiden University, the oldest university in the Netherlands, is celebrating its birthday. Why does the King still receive a telegram on the day of the Dies Natalis? 4 questions on the origins of Leiden University and its traditions for celebrating its foundation day.
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Studying ferritin: ‘we hope this will eventually give more insight into Alzheimer's’
Martina Huber, Jacqueline Labra Munoz research Alzheimer's disease. They study ferritine, iron storage in the brain. An inbalance of iron could play a role in this form of dementia.
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Leiden Classics: the man behind the beadle
Almost everywhere in the world where the post exists, the beadle is a ‘master of ceremonies’ who only makes his appearance on special occasions. In Leiden the beadle does much more. He is indispensable at dissertation defences and orations. He directs ceremonies and is a master at calming nerves.
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Anti-Asian racism deserves much more attention
Racism and discrimination come in many different shapes and forms – in the Netherlands too. Verbal attacks, stereotypes and violence: some people are confronted with these on a daily basis. A group that is often not included in research and the debate on racism is people of Asian descent. The Diversity…
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Sumi-e (Japanese Ink Brush Painting) | Spring series
Arts and leisure, Arts and leisure
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Green Friday in de Hortus
Green Friday
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Report: what does our urban mine have to offer?
On 21 January, the Institute of Environmental Sciences (CML) has released two reports on circular economy and urban mining in the Netherlands. In them, together with Statistics Netherlands, they take stock of part of the Dutch ‘urban mine’: how much raw material can we reuse from the electricity grid,…
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‘A country’s immigration narrative really influences the people arriving there’
Immigration and naturalisation policies are an important theme in the upcoming Dutch elections. The Netherlands should be mindful of its immigration narrative, says PhD candidate Hannah Bliersbach, as this greatly influences the relationship between ‘new’ citizens and their new home country.
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Graphic techniques: the linoleum cut
Arts and leisure, Arts and leisure
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CCLS Seminar
Conference, seminar
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Joint Lectures on Evolutionary Algorithms - January 2024
Lecture
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Drawing and Painting
Arts and leisure, Arts and leisure
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Snow, a mini-cortège and a new rector: a special Dies Natalis
No procession of professors, just a handful of people in the church and snowdrifts outside Leiden’s Pieterskerk: 8 February 2021 was no ordinary Dies Natalis. Carel Stolker transferred the rectorate to Hester Bijl, and Annetje Ottow became the new President of the Executive Board. With an honorary doctorate…