39 search results for “light vervuiling” in the Staff website
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Personnel monitor Light 2021
The University believes it is important to provide you with a satisfying work environment. How do you feel about your career opportunities, the interaction with your colleagues and supervisors, and the work facilities at your disposal? We ask for your opinion via the personnel monitor. This survey guarantees…
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Cavities for light and sound
PhD defence
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From wildlife journalist to ecologist: PhD candidate researching light and noise pollution
Ecologist Sebastiaan Grosscurt became a successful wildlife journalist after graduating. But he decided to focus on science instead. He started his PhD research this year on the cumulative effect of light and noise pollution on animal behaviour.
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Gateway Strategy: Transforming relations with African countries in light of the China challenge?
Lecture, European Union Seminar
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Dani Crowley
Science
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Thijs Bosker in the Media on Microplastics and Whale Poop
Several media published articles on the latest research from a team including Thijs Bosker, Associate Professor Environmental Sciences, last week. The research has shown that whales in the vicinity of Auckland New Zeeland consume three million microplastics a day.
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Sebastiaan Grosscurt
Science
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Superselective bonds light up
Rather than one key and one strong lock, biology often uses tens or hundreds of weaker links to bind parts together, such as cells membranes. This allows for selectivity and also reversibility: the binding can also be undone. Researchers first caught this phenomenon using spheres or colloids, and published…
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Leiden Law Cast #5: Esther Kentin on PFAS, (micro)plastics & policy
Leiden Law Cast is a podcast made by Leiden Law School, Leiden University, for everyone who wants to learn more about current legal issues.
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Can humans observe a single particle of light? (And what does that say about our brain?)
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.’
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Lights out, stars on: Daan Roosegaarde on Seeing Stars Leiden
‘What if we switch off all the lights one evening? That idea crossed my mind from time to time. And when I mentioned it to a taxi driver one day, he said: “Oh, you mean: lights out, stars on!” That’s not completely true, of course, because the stars are always on, but his phrase summed up the idea n…
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How light and noise pollution disrupt aquatic life
Fish populations in lakes and rivers have declined in recent decades. This is probably due to light and noise pollution. The Horizon Europe grant enables ecologist Hans Slabbekoorn to investigate this and improve the situation for migrating fish. In order to do so, a seven-metre-long swimming tunnel…
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Anjali Pandit
Science
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Oana Georgiana Rus-Oswald
Faculteit der Sociale Wetenschappen
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Chemotherapy without side effects? It’s possible, with light
Nausea, neurologic pain and hair loss: some of the severe side effects of chemotherapy. Not necessary, biochemist Liyan Zhang showed. Together with Leiden biologists and others, she achieved great results with a drug that is only active in combination with light. Zhang will defend her PhD on 4 July.
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This is how physicists use light to build complex structures
Petr Steindl works on quantum dots in microcavities for his PhD research. He manipulates single-photons to create complex structures of light. Applications could include quantum communication and gates for quantum computers.
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Bacteria growing on light and air: a revolution for biotechnology?
Research to experiment with bacteria that grow like plants has been granted the NWO XS grant. These bacteria use light and carbon dioxide to grow, and will be designed especially for use in the biotechnological field. Tijn Delzenne and his supervisor Dennis Claessen can spend 50.000 euros on the exp…
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Research into grave goods sheds new light on traditional roles
New archaeological research into grave goods and skeletal material from the oldest grave field in the Netherlands shows that male-female roles 7,000 words ago were less traditional than was thought. The research was conducted by a multidisciplinary team of researchers led by Archol, the National Museum…
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Sylvestre Bonnet
Science
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First edition of photo magazine Writing with Light Magazine OpenAccess available
Writing with Light Magazine. Issue no.1 is now available for download as a open access pdf/interactive edition or purchase as limited-run print edition. The magazine builds on our prior work with the journals Cultural Anthropology and Visual Anthropology Review and the editorial collective consists…
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Sara Brandellero: ‘We need to protect the city from an excess of light’
On 25 September, lights throughout Leiden will be turned off for the Seeing Stars event. What makes the urban night so special? We asked university lecturer Sara Brandellero, who researches cities, night and migration.
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Dust cloud from two colliding ice planets dims light of parent star
For the first time, an international group of astronomers have seen the heat glow of two ice giant planets colliding. They could also observe the resultant dust cloud move in front of the parent star several years later. Led by Leiden astronomer Matthew Kenworthy, they monitored the star's brightness…
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Dental remains shed light on drug use in 19th century Dutch village
Archaeologist Bjørn Peare Barthold suspected farmers in a doctorless 19th century Dutch village may have been self-medicating to manage pain and disease. By examining the skeletons' dental calculus this hypothesis could be tested. Science Magazine interviewed him about this new technique.
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‘When a student sees the light, that’s what fulfills me’
'Education has always been something I am very interested in,' says the passionate Michiel Hogerheijde. He was already chairman of the astronomy programme committee and has been teaching for many years. Since 1 October, he is also the new Programme Director of the astronomy bachelor. 'I really enjoy…
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Book Landscapes of Survival sheds new light on the habitation of the Jordan deserts
December 2020 saw the crowning publication of the Landscapes of Survival project by Professor Peter Akkermans. Its main topic is human habitation in marginal environments like the deserts of the Arabian Peninsula. ‘The people living here built their own society, and they would not have viewed it as…
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ESOF session shines a light on the dark side of our universe
Cosmologists can measure with increasing precision how the universe is expanding and changing. This is producing unexpected results and causing cracks in our picture of the universe. At the ESOF session The Dark Side of our Mysterious Universe, cosmologists, astronomers and philosophers will discuss…
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Green light to build revolutionary new experiment at CERN to search for unknown particles
After many years of preparations, CERN has approved a groundbreaking new experiment: the Search for Hidden Particles (SHiP). Physicist Alexey Boyarsky was involved from the start. ‘We know there is physics that’s missing and we aim to find it.’
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research into the Humanities Campus: ‘It needs lots of green spaces and light’
Over the past few months, Urban Studies students have been helping to think about the realisation of the Humanities Campus. To test their knowledge in practice, the future urban specialists gave advice on several different aspects, including thermal energy storage and the new central campus building…
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Why do birds flock? Shedding light on collective motions in heterogeneous populations
Leiden physicists Alexandre Morin and Samadarshi Maity study self-organisation and flocking phenomena. They shed light on flocking, which helps to understand how it is possible that birds in a flock don't collide. With plastic microbeads, they create an experimental setup and they developed a mathematical…
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Workshop ‘Caribbean World Heritage Sites in the light of today’s global challenges: the case of Historic Bridgetown and Its Garrison'
Last month (February 5-8 2024), the University of the West Indies, Cave Hill Campus, Barbados, hosted a workshop entitled ‘Caribbean World Heritage Sites in the light of today’s global challenges: the case of Historic Bridgetown and Its Garrison’.
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Zware metalen hebben slechte reputatie, maar genezen ook kanker
Veel mensen denken dat zware metalen giftig zijn en mens en natuur altijd schade aanbrengen. Dat beeld moet genuanceerd worden, vindt hoogleraar Sylvestre Bonnet.
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Willem van der Does sheds new light on the at times pitch-black history of psychiatry
Piercing through the skull with an ice pick, administering electric shocks without an anaesthetic, or applying leeches to the uterus: these may seem like medieval methods of torture, but they are in fact therapies used in medicine. Willem van der Does writes about all of them in his new book. ‘Physicians…
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Seeing Stars: Jupiter steals the show in cloudy night skies
After months of preparation, the moment of truth had arrived: would the skies above Leiden clear for the promised glitzy planet-and-star show? The people of Leiden turned out in their hundreds to go star-hunting on 25 September. They became more aware than ever of the effects of light pollution.
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Ecology PhD student wins Dutch award for investigative journalism
PhD student and research journalist Sebastiaan Grosscurt won a Tegel in May. In the data category, Grosscurt and his colleagues won the prestigious Dutch journalism award. 'For me, ecological research and journalism are two ways of achieving the same thing.'
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Lights in a Sea of Darkness
PhD defence
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European security in light of Russia’s invasion of Ukraine
Debate
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Control of early plant development by light quality
PhD defence
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in microcavities: From single spins to engineered quantum states of light
PhD defence
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Forum Antiquum Lecture Spring 2022: 'After Lights Out: Studying Classics in a World War II Internment Camp'
Lecture