143 search results for “metals wereld” in the Staff website
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Silver and light: a powerful combination with the potential to save lives
Packages of DNA strands containing silver, measuring just two or three nanometres in size. Leiden physicists Donny de Bruin and Dirk Bouwmeester create these packages, which can enter living cells on their own. They then activate the silver with light, causing the cells to break down. This could, in…
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Archaeologist Valerio Gentile investigates Bronze Age spear combat
How can we tell whether and how a prehistoric weapon was used? How can we better understand the dexterity and combat skills involved in Bronze Age spear fighting? A research team from Leiden and Göttingen University present a new approach to answering these questions: they simulated the actual fight…
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Ready for Quantum?! (in Dutch)
Lecture, NGL-lezing
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Ancient History Research Seminar, Student Presentations
Lecture, Ancient History Research Seminar
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Soldiers of Fortune at Home: Remarks on the Social and Economic Footprint of Cretan Mercenary Wealth in the Hellenistic Period
Lecture, Ancient History Research Seminar
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Angus Mol and Aris Politopoulos are the winners of the fourth LUCAS Public Prize 2022!
On Tuesday 12 April Angus Mol and Aris Politopoulos have been awarded the fourth LUCAS Publieksprijs.
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You should eat herring on the coast and not in Maastricht
For thirty years, the Dutch Newspaper AD conducted an annual search for the best herring. This came to an end when economist Ben Vollaard, based on a statistical analysis, claimed it was rigged. But that claim doesn't smell right, says Leiden statistician Richard Gill. ‘The way you code and process…
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Material demand for key infrastructures in emerging energy and digital technologies under the low-carbon transition: estimation and sustainability
PhD defence
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Lowlands as lab: virtual trips in the name of science
While tens of thousands of visitors dance to deafening music, a team of Leiden psychologists are trying to collect data for their research at Lowlands. How do festivalgoers experience a virtual trip? And what role do factors such as too little sleep and whether they have experience with psychedelics…
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Keti Koti in Leiden: 'Here, too, slavery is all around us‘
Many traces of the city's slavery history can be found in Leiden but the public isn't always aware of them. The initiators of 'Mapping Slavery in Leiden' want to change this with guided tours and street markers. Representatives of the University and other Leiden institutions will be giving the first…
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In goede banen leiden van afval rond de aarde via het ruimterecht
Steeds drukker is het in populaire banen rond de aarde voor ruimtevaart. Niet alleen met satellieten, vooral met meer afval, wat onveilig is. Zhuang Tian promoveert op de juridische kant van afgedankte ruimte-apparaten. Wie troep veroorzaakt, moet het weer opruimen.
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‘Ask scientists how to build the circular economy’
Some governments and companies are pursuing a more circular economy, but what is the best way to get there? An international group of industrial ecology researchers wrote a report that stresses the importance of including the scientific side into policies and practices. ‘We feel an obligation to support…
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Four Leiden Scientists: 'Environmental risks of new pesticides with nanoparticles insufficiently examined'
The environmental risks of new pesticides containing nanoparticles are inadequately researched, according to four Leiden scientists in the scientific journal Environmental Science & Technology. They call for an examination of the long-term and environmental effects of pesticides containing nanoparti…
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Lost sulfur in the universe found in salt on dust and pebbles
An international team led by astronomers at Leiden University has shown in laboratory experiments that sulfur can bind with ammonium under icy cosmic conditions and form a salt that sticks to dust and pebbles. The resulting sulfur salt not only helps to explain the mystery of the missing sulfur gas,…
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The magic of liquid helium: this person makes ice-cold research in Leiden possible
White clouds of ice-cold gas flowing across the floor. Magical, but be careful not to freeze your fingers off. We are of course talking about liquid nitrogen and helium. You may have seen the spectacular Freezing Physics science show by the student organisation Rino. But did you know that this commodity…
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Assessing total environmental impact is becoming even more important
Life cycle assessment (LCA) reveals the total environmental impact of products or production processes, and EU rules are going to make this even more important.
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Strange materials with potential for innovation in technology and energy
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.
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Leiden biologists find nanoplastics in developing heart
Nanoplastics can accumulate in developing hearts, according to a study by biologist Meiru Wang from Leiden University. Her research on chicken embryos sheds new light on how these tiny plastic particles pose a threat to our health.
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Extraordinary treasures on National Finds Day
Is it a prehistoric mammoth tooth or just an ordinary pebble? It was National Finds Day at the Dutch National Museum of Antiquities on Saturday 17 June, and Leiden University was one of the collaborating partners.
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Two Leiden teams granted precious research time on ALMA telescope
Leiden Observatory has achieved a rare feat: two of its research teams have been awarded prestigious ALMA Large Programmes, allowing them to study how galaxies formed and evolved in the early Universe using cutting-edge telescope observations.
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Hoard of Roman coins turns out to be offering for safe crossing
Several years ago, two amateur archaeologists from Brabant discovered over a hundred Roman coins near to Berlicum in the north of the province. After years of research, it now appears that the location, close to a ford in the river, was a site for offerings. Another interesting fact is that the coins…
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Website shows the history of Sri Lanka’s ‘Slave Island’: ‘Soon there will be none of it left’
In the eighteenth century, the Dutch East India Company (VOC) housed its enslaved people on ‘Slave Island’ in Colombo, the capital of Sri Lanka. Today ‘Slave Island’ is under serious threat from property developers. Senior lecturer Alicia Schrikker, together with her Sri Lankan colleagues Iromi Perera…
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Cracking the code: why platinum electrodes corrode
An atomic vandal has finally been caught! Scientists from Leiden University and the Department of Energy’s SLAC National Laboratory have uncovered the mysterious cause behind the rapid corrosion of platinum electrodes. This breakthrough paves the way for more affordable green hydrogen production and…
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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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Tunnel vision alarm in the search for more efficient hydrogen cells
A tenacious postdoc researcher persuaded Professor Marc Koper to research the oxygen reduction reaction. In Koper's eyes, there was little of interest there. But they promptly discovered a whole new way to improve fuel cells on hydrogen and oxygen. Their article appeared in Nature Catalysis on 07 Ju…
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Children learn how medicines work: ‘Some pills go in your bottom!’
A pill can make you better, but how exactly does it work? Primary school children from The Hague found out during a visit to the Centre for Human Drug Research (CHDR) as part of a new teaching module ‘The journey of a pill’.
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Tirong Guo discovered materials that bring efficient artificial photosynthesis closer
After hard work in the lab, Chemist Tirong Guo has developed a group of materials that provide a stable and efficient foundation for artificial photosynthesis. Will this enable the large-scale production of hydrogen and other useful compounds in the most sustainable way possible? Guo will defend her…
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Uzbek mathematician refines world-famous theory: ‘So many things are connected’
Predicting the collective behaviour of systems, like a large group of people electing one of the parties, is no easy task. But there’s a theory that scientists have been using for decades to do just that: the theory of Gibbs measures. Last week, mathematician Mirmukhsin Makhmudov earned his PhD for…
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Rianne Bouwman recently started as policy officer for education.
Rianne Bouwman recently started as policy officer for education.
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Demystifying Alexandria: Insights from Alexandria about 21st century Orientalism and (post-)Colonialism
Lecture, LUCIS What's New?! Series
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First photo of black hole at the heart of our Galaxy
Finally we know for sure that there is a black hole at the centre of our own galaxy. Today, astronomers unveiled the first ever photo of Sagittarius A*, a super-massive object at the centre of the Milky Way. This picture could only be taken thanks to the cooperation of telescopes worldwide.
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Working conference Roman Gems
Working conference
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‘War with Russia more likely now Trump has spurned Europe’
Europe’s security suddenly looks uncertain now President Trump has started negotiations with Putin. What does this mean for the Netherlands? What do we need to do?
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The quest for the magic angle
Stack two layers of graphene, twisted at slightly different angles to each other, and the material spontaneously becomes a superconductor. Science still can't explain how something so magical can happen, but physicists use special equipment to reveal what is taking place under the surface.
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Pluriversal Politics: Otomi History, Language, Culture and Cosmovision
Film screening and Book Launch
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Synthesis and Characterization of Boron, Nitrogen, and Carbon-Based Two-Dimensional Materials
PhD defence
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Back to the scanner: brain science in times of corona
For their research many neuropsychologists use the brain scanners at the LUMC. At the start of the pandemic, the rules for visiting the hospital became stricter and a large amount of psychology research looked as though it would fall through. Thanks to good protocols the researchers can now pick up…
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Report: Tracking down green spaces in The Hague in places you don't always want to be
Although there is considerable evidence that nature in the city is beneficial to both people and animals, we still do not have an overall picture of those benefits. To rectify that, a Leiden PhD candidate and a student – armed with a cargo bike – are using The Hague as a life-size laboratory.
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Russia correspondent Eva Hartog: ‘Return to the Netherlands? No way!’
Russia correspondent Eva Hartog took a Master’s in Political Philosophy in Leiden in 2011. This former editor-in-chief of The Moscow Times sees this short period as a new chapter in her life. And she is once again contemplating her future now she can no longer ask the big questions in Russia.
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Nacht van de Digitale Veiligheid
Festival
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ASCL Seminar: Obscure Capital and Containers: History, Objects, and Power in Central Africa
Lecture
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The Ontology of Writing: The Workings of Talismans in Daoist Practice
Lecture, China Seminar
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European Day of Languages - Evening of Languages
Festival