144 search results for “led light” in the Public website
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Weighing heavenly bodies based on bending light
Many astronomers suspect that most of the matter in the universe is invisible. So how can you weigh dark matter if you can't actually see it? Professor Henk Hoekstra is looking for a solution. Inaugural lecture 25 June.
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Green light for Leiden supercomputer
From simulations of galaxies to analyses of MRI scans: scientific research needs more and more computing power. Leiden University is planning to set up a completely new facility for high-performance computing. The green light was given officially on 20 June.
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New light on dark matter
An international team of astronomers has found an unexpected link between dark matter and visible stars in stellar systems. This discovery may even cause us to reconsider our understanding of gravity. They published on their discovery in 'Nature' on 1 October.
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Capturing polarised light in the search for alien plants
A new way to decipher the light from distant worlds could give us unmistakable evidence of extraterrestrial photosynthesis, and maybe alien plants, finds astronomy author Colin Stuart in the New Scientist. In his article, he describes the work of the group led by Leiden astronomer Rob van Holstein.…
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Anjali Pandit
Science
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Oana Georgiana Rus-Oswald
Faculteit der Sociale Wetenschappen
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Ultra-thin material absorbs all the light
It appears to be a paradox: ultra-thin material that absorbs all the incident light. Nonetheless, it does exist. Two Leiden researchers report on their research in ‘Applied Physics Letters’. The article is among the Top 20 of the most downloaded articles of this reputable journal in May.
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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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A celebration of light, peace and the night sky
The International Day of Light (IDL) celebrates the ubiquitous role light has in our lives. From Argentina to South Africa, Japan and Pakistan, several events have taken place across all continents on May 16. The date is a token for people around the globe to connect with the importance of light in…
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Physicists image individual molecules by watching them absorb light
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.
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Einstein’s light dances and spins in Leiden
The documentary Einstein’s Light by director Nickolas Barris shows in a dazzling manner what scientific breakthroughs resulted from the special friendship between Albert Einstein and the Leiden physicist Hendrik Antoon Lorentz. The documentary premiered at the Leiden International Film Festival on 2…
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Light particles lined up one after the other
In Leiden, light particles march into Wolfgang Löffler’s experiments one by one. His research focuses on acquiring the fundamental knowledge needed to develop quantum computers and networks.
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Shedding light on the dark side of the universe
It must be there. We just cannot see it: mysterious dark matter and dark energy in the universe. Henk Hoekstra is one of the many cosmologists who would love to know what exactly these substances consist of. He has received a European research grant of 1.3 euro million to find out.
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New light on innate plant immunity
Plants are able to resist a pathogen’s attack by a dual innate immune system. The relationship between the two pathways was not clear, but it turns out that they mutually potentiate each other, as assistant professor Pingtao Ding (Institute of Biology Leiden) and colleagues (The Sainsbury Laboratory,…
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'Brexit has led to renewed trust in European cooperation'
Brexit has been a kind of shock therapy for the EU and has eventually led to more appreciation for European cooperation. That is what Professor Luuk van Middelaar claimed on 30 November at the conference ‘Brexit and the future of the European Union’ which marked the 60th anniversary of the Europa Institute…
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Scattering and absorption in 2D optics
Scattering of light in the presence of nano-structured materials, i.e. with features in the order of the wavelength of the light or smaller, reveals details of how light interacts with matter at the nanoscale.
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Testing of a malaria vaccine gets the green light
Researchers at Leiden University Medical Center (LUMC) and Radboud university medical center have been given the green light to deliberately infect volunteers with malaria in order to test a highly promising vaccine on them.
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European collaboration shines a light on enzyme discovery for industry
A European consortium has provided a disruptive technological breakthrough to allow the discovery and characterization of novel enzymes for industrial biotechnology. The technology will open the way to more efficient industrial processes such as in the biofuel, animal feed and paper and pulp industr…
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Seeing the Romans - and ourselves - in a different light
Globalisation means becoming globalised, a process in which material culture plays a crucial role. This is what Miguel John Versluys, the new Professor of Classical and Mediterranean Archaeology, teaches. He bases his teaching on research into the origin and growth of the Roman Empire from the 3rd…
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Sylvestre Bonnet
Science
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Italy’s green light to ship boat migrants to Albania
Italian PM Meloni’s election promise to limit the number of boat migrants entering the country looks like being fulfilled with help from Albania. A deal was recently approved that provides for two reception centres for asylum seekers in Albania. Dr Mark Klaassen, an expert in immigration law, questioned…
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Zebrafish embryos and larvae as a complementary model for behavioural research
Promotor: Prof.dr. M.K. Richardson
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University to switch off lights during Seeing Stars Leiden – Care to join us?
Artist Daan Roosegaarde, together with UNESCO and Leiden University, wants to make the stars come out during Seeing Stars Leiden. The University will therefore switch off the lights in most of its buildings on Sunday 25 September from 22:00 to 23:30 and is asking the people of Leiden to follow suit.
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Arabic papyri shed new light on origins of Islam
Research on papyri has provided new insights into the history of the origins of Islam. Petra Sijpesteijns’s book,'Shaping a Muslim State', is based on these ancient Arabic letters and documents. Her new research on a Viennese collection of untranslated papyri is expected to produce more discoveries.
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Fighting cancer with light (and a drug that self-assembles into nanoparticles)
Chemotherapy that does not harm the body, but effectively fights cancer cells: that is the goal of chemist Sylvestre Bonnet and his team. During his PhD research, chemist Xuequan Zhou brought that goal a little closer. He developed molecules that, upon injection in the bloodstream, self-assemble into…
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Thierry Rohmer received Ernst Award for elucidating the light-switch of plants
PhD student Thierry Rohmer received the Ernst Award 2009 of the Gesellschaft Deutscher Chemiker (GDCh) for his publication in the Proceedings of the National Academy of Science of the USA on the structure-function relation of the photoreceptor phytochrome. The prize was presented at the Annual Discussion…
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Coherent dynamics in solar energy transduction
Promotor: Huub de Groot, Co-promotor: Francesco Buda
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Bioorthogonal Labeling Tools to Study Pathogenic Intracellular Bacteria
In this thesis, bioorthogonal chemistry is combined with correlative light-electron microscopy to selectively label and study pathogenic intracellular bacteria within the host immune cell.
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A bioorthogonal chemistry approach to the study of biomolecules in their ultrastructural cellular context
In this thesis the combinatorial use of bioorthogonal labelling and Electron Microscopy (EM)-based imaging techniques is explored to enable observations of specific molecular targets in their ultrastructural context within the cell.
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Sustainable construction
Just as in phase 1, phase 2 of the Gorlaeus Building will focus on sustainable building.
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black holes blows monumental bubbles of hundreds of thousands of light-years
An international team of researchers observed the full extent of the evolution of hot gas produced by an active black hole for the first time. As it evolves, the hot gas encompasses a much larger area than previously thought and even impacts objects residing at great distances. Their study is published…
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Using tweezers of light to study the misfolding proteins of muscular diseases
Alireza Mashaghi from the Leiden Academic Centre for Drug Research (LACDR) will use state-of-the-art technology to investigate proteins that play a role in muscular dystrophy. His goal is to provide new insights for designing novel therapeutic strategies in the future. To accomplish this, Mashaghi receives…
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Plan B for particle physics: finding long lived particles at CERN
This thesis discusses the discovery potential of Intensity Frontier experiments.
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Cleveringa Professor: Holocaust remembrance has led to very different political lessons
From memorials to the armed forces to memory stones for individual victims. It was only later that the Holocaust took a central role in Western remembrance culture, Cleveringa Professor Frank van Vree notes. ‘Nationalists and human rights activists both invoke the experience of the Holocaust.’
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A semisynthetic peptide-metalloporphyrin responsive matrix for artificial photosynthesis
This thesis is concerned with the constitution of chiral responsive matrix assemblies that may undergo light-driven conformational changes and self-select vibrations to develop vibronic states for driving semi-classical coherent transfer with nearly 100% yield in a lossless NCAP process.
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Previously unpublished letters shed new light on Dutch Republic’s first queen
‘Seated behind her desk, she initiated and influenced embassies, conventions, ambassadorial meetings, sieges, and skirmishes that had kept a war-torn early modern Europe in its grip.’ This is how Nadine Akkerman, researcher as the Leiden Institute for Cultural Disciplines and author of The Correspondence…
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EAC Council of Ministers give green light for Democratic Republic of the Congo accession
On November 22 in Arusha, Tanzania, the Council of Ministers of the East African Community (EASC) endorsed the Democratic Republic of Congo (DRC) as its seventh Partner State.
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EAC Council of Ministers give green light for Democratic Republic of the Congo accession
On November 22 in Arusha, Tanzania, the Council of Ministers of the East African Community (EASC) endorsed the Democratic Republic of Congo (DRC) as its seventh Partner State. This meeting, chaired by Kenya’s EAC Affairs and Regional Development Cabinet Secretary Adan Mohamed, represents one of the…
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Impact assessment modelling of matter-less stressors in the context of Life Cycle Assessment
Promotores: Prof.dr. G.R. de Snoo & Dr. R. Heijungs
- International Day of Light
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Lighting Up Cancer Aggressiveness
PhD defence
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MERCOSUR’s new conditions for the common customs tariff will see the light at the end of June
Intensive and decisive days are coming for the future of MERCOSUR’s external relations. In around two weeks, the regional organization’s negotiating and technical teams will publish the new conditions for the common customs tariff
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A computational study of structural and excitonic properties of chlorosomes
The long-held desire - to link structure directly to function and to explain molecular mechanisms based on basic chemical or physical principles - is finally coming closer, satisfying not only our scientific curiosity but also offering new solutions to the many challenges in the field of health, energy…
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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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ImageInLife: Training European experts in multilevel bioimaging, analysis and modelling of vertebrate development
How can novel bioimaging technologies and vertebrate model species be used to gain a better understanding of early cellular behaviours with the ultimate goal to increase our understanding of human development and disease processes?
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Research methods
Because we cannot directly ask babies about what they know or what they are thinking about, we must find smart and baby-friendly ways to figure it out! Below you can read about the different methods that we typically use in our studies.
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margins to the front line: Central Eastern European diplomacy in the light of Russia’s attack on Ukraine
Russia’s premeditated attack on Ukraine in February 2022 changed not only the security landscape of Europe. It also altered – at least for now – the structures of leadership and influence within the West.
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Research Grant for tuning into photosynthesis
Biophysicist Anjali Pandit has been awarded a FOM 'Projectruimte' research grant for her proposal ‘Tuning into the photosynthetic membrane with atomistic precision’.
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LIC Lecture: Indigoid chromophores - a platform for light responsive nanosystems and molecular machines
Lecture
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Weighty synthetic ubiquitin tools to shine a light on the enzymes of the ubiquitin pathway
PhD defence