2,045 search results for “led light” in the Public website
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Control of early plant development by light quality
This thesis describes how different colours of light affect various aspects of the growth and development of Arabidopsis and tomato plants.
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SKY HIGH: Vertical farming a revolution in plant production
As a new vision on food production, the feasibility study on LED light to grow crops with the biological- and chemical evaluation of final products.
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Bioclock: Light therapy for depression
Optimization, mechanisms of action and predictors of the outcome of light therapy in depression: A multicenter randomized trial
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Light relief
How can new compounds relieve cancer patients of severe side effects?
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Effects of light at night on plants and their interactions with other species
What is the effect of light at night on plant phenology and physiology, and how does this affect plant interactions with other species?
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Fighting tumours with light
Chemotherapy that does nothing until you irradiate it with light. Sylvestre Bonnet receives a Vici grant of 1.5 million euros for the development of this treatment. The Leiden chemist wants to build a new molecule to fight tumours that are at the time still difficult to treat.
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To Be Led Astray?
The Effects of the 1881 Liquor Act on the Leiden Alcohol Trade
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Twisted light and helical structures
Wolfgang Lüffler
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Light and Electron Microscopy Facility
The aim of this facility is to accelerate biomedical research by providing access to advanced light and electron microscopy and by sharing expertise about sample preparation, imaging modalities, data storage and image analysis.
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D-lightful Sunshine Disrupted
This study stresses the importance of investigating vitamin D deficiency in every community to better understand the deteriorating effect that sociocultural practices may have had on health.
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Photosynthetic light reactions at the gold interface
Promotor: Prof.dr. T.J. Aartsma, Co-promotor: R.N. Frese
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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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Cavities for light and sound
PhD defence
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Shining Light on Interstellar Matter
Promotor: H.V.J. Linnartz
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The unbearable lightness of clitics
On the 23rd of January, Anastasiia Ionova successfully defended her doctoral thesis and graduated. The Leiden University Centre for Linguistics congratulates Anastasiia on this achievement.
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Guiding blood vessels with laser light
How can lasers control the growth of new blood vessels?
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Aquatic Pollution from Light and Anthropogenic Noise (AquaPLAN): Management of Impacts on Biodiversity
What are the effects of light pollution from cities and bridges and noise pollution from passing vessels and nearby road traffic on migratory fish passage and spawning in rivers?
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Towards in-cell structural study of light-harvesting complexes : an investigation with MAS-NMR
Light-Harvesting Complex II (LHCII) is responsible for light absorption and excitation energy transfer in plants and photosynthetic algae, while in high light it undergoes conformational changes by which it quenches excitations to prevent photodamage.
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Shining Light on PAHs in Space
Polycyclic aromatic hydrocarbons (PAHs) are the most abundant class of organic compounds in space. The PAH field evolves from the constant interaction between experimentalists, theorists, modellers and observers. While laboratory research and quantum chemical calculations together set up the molecular…
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Casting light on the ƞ Carinae puzzle
Promotor: Prof.dr. V. Icke, Co-Promotor: T.I. Madura
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Light-activatable metallodrugs and metal-functionalized liposomes
Metal-containing molecules combine geometrical features and a reactivity that are inherently different from that of organic molecules. My research focuses on light-activatable metal-based anticancer drugs and metal-functionalized liposomes. Light is a very selective way to activate photosensitive drugs…
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Light-activatable ruthenium-based anticancer prodrugs
Can light-activatable ruthenium compounds be used as a more selective anticancer treatment?
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Politically motivated crime in light of current migration flows
This project addresses the occurrence of political and ideological biased crimes in light of the recent migration influx in European countries.
- Stakeholder-led adaptation strategies to climate change
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The connection between mass and light in galaxy clusters
Promotor: Koen Kuijken Co-promotor: Henk Hoekstra
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Discover More HyperVelocity Stars to shed light on the Galaxy
Rossi
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nanovesicles for the activation of ruthenium anti-cancer prodrugs with red light
Promotor: E. Bouwman, Co-promotor: S. Bonnet
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Terror Has Already Led to Self-Restraint
Self-censorship violates principles of a free society but few people want to take the role of the martyr.
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Adina Akbik wins Student-led Teaching Award
This September, Adina Akbik received the Political Science Teaching Award at Leiden University. Created by student members of the Bachelor's and Master's Programme Committees (OLC), the award recognises remarkable teaching at the Institute. Akbik was chosen from five finalists after receiving several…
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The dynamics of light verbs in the history of West Germanic languages
The main question of this research project concerns the extent to which light verbs in West Germanic languages participate in processes of language change.
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Martin van Exter Lab - Quantum Optics and Light-Matter Interaction
Research in the van Exter lab focuses on quantum aspects of light and light-matter interaction. One of our long-term goals is to develop a reliable quantum memory, based on a single emitter in an open micro cavity.
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Flashing lights protect livestock from lions
Farmers on the outskirts of Nairobi National Park protect their livestock using flashing lights on top of the animal enclosures. This system keeps lions away at night. Leiden research has shown that the method is both simple and effective. Publication in PLOS ONE.
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in microcavities: From single spins to engineered quantum states of light
A single self-assembled semiconductor quantum dot in a high-finesse optical microcavity - the subject of this thesis - is an interesting quantum-mechanical system for future quantum applications. For instance, this system allows trapping of an extra electron and thus can serve as a spin quantum memory,…
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Impurities in Pharmaceutical-Grade Sugars and their Interference with Light Scattering-Based Analysis of Protein Formulations
PURPOSE: In the present study we investigated the root-cause of an interference signal (100-200 nm) of sugar-containing solutions in dynamic light scattering (DLS) and nanoparticle tracking analysis (NTA) and its consequences for the analysis of particles in biopharmaceutical drug products.
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response against mycobacterial infection: analysis by a combination of light and electron microscopy
Promotores: Prof.dr. H.P. Spaink & Prof.dr. P.C.W. Hogendoorn, Co-promotor: Dr. M.J.M. Schaaf
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In vitro investigation of the photoprotection mechanism of Light Harvesting Complex II
Solar energy is used by photosynthetic organisms to drive energy required cellular processes. Is absorbed by two groups of pigments, located in the LHCs.
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Light Obscuration Measurements of Highly Viscous Solutions: Sample Pressurization Overcomes Underestimation of Subvisible Particle Counts
Light obscuration (LO) is the current standard technique for subvisible particle analysis in the quality control of parenterally administered drugs, including therapeutic proteins.
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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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Revisiting past cyber operations in light of new cyber norms and interpretations of international law: inching towards lines in the sand?
This article traces the evolution of interpretations of international law and international cyber norms on responsible state behaviour in cyberspace by reassessing five major – and allegedly state-led – cyber operations: Stuxnet 2010; Belgacom 2013-2014, the Ukrainian power grid 2015, the US presidential…
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Lasers, lenses and light curves: adaptive optics microscopy and peculiar transiting exoplanets
Promotores: Prof.dr. C.U. Keller, Prof.dr. H.C. Gerritsen
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Light Weighed: On the Statistics and Systematics of Weak Gravitational Lensing
In astronomy, the interpration of observations and measurements plays a crucial role: we rely purely and fundamentally on the information that reaches us as observers. And 80% of all matter in the universe is undetectable directly.
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Stakeholder-led Adaptation Strategies to Climate Change: Global Transformations and Governance Challenges Seed Grant
Agriculture is among the most vulnerable sectors to climate change and poorer countries face the most severe difficulties. Coffee farmers in Central America, for instance, are facing multiple and mutually reinforcing crises, including price shocks, outbreaks of pests and diseases, migration, and farm…
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Dani Crowley
Science
d.crowley@biology.leidenuniv.nl | +31 71 527 4759
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More insight with light
The new programme Synoptic Optics, funded by the NWO Domain Applied and Engineering Sciences, will develop new optical techniques. Researcher Frans Snik and Professor of Experimental Astrophysics Christoph Keller from Leiden Observatory will test novel approaches to monitor air pollution and discover…
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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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Light and nanoparticles against cancer
Leiden PhD student Xuequan Zhou has designed a new promising molecule that efficiently kills cancer cells, but does not harm healthy tissue. The trick: the drug is only active when irradiated with light. Zhou’s new compound does this extra efficiently by cleverly self-organising into nanoparticles.…
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Sebastiaan Grosscurt
Science
s.grosscurt@cml.leidenuniv.nl | +31 71 527 2727
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Celebrating the International Day of Light in the Old Observatory
On 16 May the first International Day of Light was celebrated all around the globe. Initiated by UNESCO, organisations in 87 different countries set up a total of more than 600 events to embrace the vital role of light and related technologies in science. In the Old Observatory in Leiden visitors could…
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Historical drivers at the regional and sectoral levels and projections in light of policy
This thesis studied in depth the energy use and CO2 emissions of the industrial sector in China.
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Celebrating the International Day of Light in the Old Observatory
On 16 May the first International Day of Light was celebrated all around the globe. Initiated by UNESCO, organisations in 87 different countries set up a total of more than 600 events to embrace the vital role of light and related technologies in science. In the Old Observatory in Leiden visitors could…