522 search results for “light pollution” in the Public website
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Dani Crowley
Science
d.crowley@biology.leidenuniv.nl | +31 71 527 4759
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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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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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Impact assessment modelling of matter-less stressors in the context of Life Cycle Assessment
Promotores: Prof.dr. G.R. de Snoo & Dr. R. Heijungs
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Legal Empowerment of Pollution Victims in China and Indonesia
A political-legal study of rights invocation by pollution victims in China and Indonesia
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The complicated conservation problem of genetic pollution
How does invasive hybridization affect threatened native species?
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Galaxy formation traced by heavy element pollution
Galaxies form and evolve through close interaction with their surroundings. As a result, the heavy elements ('metals') that are synthesized in stars, are found both inside and outside galaxies.
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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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PhD position in 'Effects of Pollution at the Ecosystem Level'
Science, Institute of Environmental Sciences (CML)
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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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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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Addressing Industrial Pollution in Indonesia. The Nexus between Regulation and Redress seeking
On 17 October 2019, Laure d'Hondt defended her thesis 'Addressing Industrial Pollution in Indonesia. The Nexus between Regulation and Redress seeking'. The doctoral research was supervised by prof. A.W. Bedner and dr. J.A.C. Vel.
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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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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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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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policies related to climate change and long-range transboundary air pollution
Using the principles of Industrial Ecology in Environmental Policy making in two cases: transition to a hydrogen economy and chlorinated compounds.
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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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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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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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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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Guiding blood vessels with laser light
How can lasers control the growth of new blood vessels?
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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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Clock disruption in diurnal versus nocturnal migrating fish
Does Artifical Light at Night (ALAN) disrupt seasonal physiological and behavioral patterns in migrating freshwater fish?
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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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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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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.
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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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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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Noise pollution affects marine life worldwide
Man-made sounds in and around the oceans stress marine life and have an impact on marine species and ecosystems by changing the underwater acoustic climate. Hans Slabbekoorn from the Institute of Biology Leiden pleads for technical solutions to mitigate problems of noise pollution. Science review paper…
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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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Anagnostis Theodoropoulos
Science
a.theodoropoulos@biology.leidenuniv.nl | +31 71 527 4882
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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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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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Algorithms combat environmental pollution from ships
Did you know that algorithms can help with the prevention of air pollution and ships sinking in the sea? A team of Leiden University researchers have worked together with the Dutch Ministry of Infrastructure and Water Management to look in data-driven inspection of ships. In this interview, Gerrit Jan…
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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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schools and communities on the impact of climate change and urban pollution on birds and their breeding cycle
The NestWacht project is a Citizen Science collaboration between Science Centre Delft, Naturalis, and the Citizen Science Lab of Leiden University to engage individuals, families and primary schools in Leiden and Delft in scientific research on the impact of climate change on nature in their city, and…
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Exposure and health Assessment of Persistent Organic Pollutants (POPs) at e-waste recycling site among workers in the informal sector in Nigeria
Do e-waste workers display enhanced effects of adverse health effects due to informal e-waste processing in Nigeria? Is there a difference between the health outcomes of the exposed and the control groups? Are there difference in health effects within and between job groups (collectors, dismantlers,…
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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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Polluted water as a source of fertilizer
It may well be possible to remove nitrate from polluted groundwater and at the same time produce ammonia in a sustainable way, according to PhD candidate Phebe van Langevelde and Professor Marc Koper of the Leiden Institute of Chemistry in Joule on 26 January. Together with a German colleague, they…
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Towards a greater understanding of the presence, fate and ecological effects of microplastics in the freshwater environment
This thesis combines field and laboratory studies to address some of the most pressing questions in the field of microplastic research.