What is the effect of light at night on plant phenology and physiology, and how does this affect plant interactions with other species?

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.

This thesis describes how different colours of light affect various aspects of the growth and development of Arabidopsis and tomato plants⁠.

Promotor: T.J. Aartsma, Co-promotor: R.N. Frese

Het doel van deze faciliteit is om het biomedisch onderzoek te versnellen door toegang te bieden tot geavanceerde licht- en elektronenmicroscopie en door het delen van expertise over monstervoorbereiding, beeldvormingsmodaliteiten, gegevensopslag en beeldanalyse.

Promotor: H.V.J. Linnartz

Bussmann

Op 10 oktober 2019 verdedigde Laure d'Hondt haar proefschrift 'Addressing Industrial Pollution in Indonesia. The Nexus between Regulation and Redress seeking'. Het promotieonderzoek is begeleid door promotor prof.dr. A.W. Bedner.

Promotoren: Prof.dr. G.R. de Snoo en Dr. R. Heijungs

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.

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…

Promotor: Prof.dr. V. Icke, Co-Promotor: T.I. Madura

Using the principles of Industrial Ecology in Environmental Policy making in two cases: transition to a hydrogen economy and chlorinated compounds.

Promotor: Koen Kuijken Co-promotor: Henk Hoekstra

Promotor: E. Bouwman, Co-promotor: S. Bonnet

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,…

Promotores: Prof.dr. H.P. Spaink & Prof.dr. P.C.W. Hogendoorn Co-promotor: Dr. M.J.M. Schaaf

Solar energy is used by photosynthetic organisms to drive energy required cellular processes. Is absorbed by two groups of pigments, located in the LHCs.

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.

Promotores: Prof.dr. C.U. Keller, Prof.dr. H.C. Gerritsen

This thesis combines field and laboratory studies to address some of the most pressing questions in the field of microplastic research.

This thesis studied in depth the energy use and CO2 emissions of the industrial sector in China.

Has the industrial sector in China effectively been decarbonizing in recent years, across different regions and subsectors, and is it plausible that it will reduce its CO2 emissions in conformity with national and internationally pledged emission goals?

De Leidse Sterrewacht gaat deelnemen aan de activiteiten van het International Year of Light (IYL). Het jaar 2015 is door de Verenigde Naties uitgeroepen tot het International Year of Light and Light-based Technologies. IYL 2015 zal aan de wereld laten zien hoe belangrijk licht en optische technologie…

Anthropogenic noise has been shown to affect marine animals in various ways, this may have fitness consequences at individual and population level. This thesis aims to increase insight into the quantification of sound-induced behavioural responses that are relevant to fitness, and into factors that…

Promotor: S.M. Verduyn Lunel, Co-promotor: O. van Gaans

Deze week ging de documentaire ‘Einstein’s Light’ tijdens het Leiden International Film Festival (LIFF) in première.

Het Story of Light festival dat plaatsvindt van 14 tot 18 januari 2015 in Panaji, Goa in India, is een initiatief van Jaya Ramchandani, alumnus van de masteropleiding Astronomy and Science Based Business. Het festival valt onder ‘The International Year of Light’, een project van de VN om de wetenschappelijke…

De 3D-spectrograaf Multi Unit Spectroscopic Explorer (MUSE) is met succes geïnstalleerd en in gebruik genomen op de Very Large Telescope op Cerro Paranal, Chili. MUSE heeft tijdens zijn eerste waarnemingsperiode gekeken naar verre sterrenstelsels, heldere sterren en andere testobjecten. De Sterrewacht…

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.

Promotor: W.T. de Groot

Promotor: Carel J. ten Cate, Co-Promotor: Hans W. Slabbekoorn

International trade has played a major role in defining the modern global economy. Trade, however, entangles the environmental pressures of economic sectors, giving the illusion of environmental improvements, while the opposite may be occurring.

Promotor: Prof.dr. M.K. Richardson

Promotor: Prof.dr. H.J.M. de Groot, Co-promotor: Francesco Buda

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.

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.

This thesis discusses the discovery potential of Intensity Frontier experiments.

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.

Hieronder vind je een overzicht van de publicaties van LAPP.

Can we distinguish the effects of pesticides from other abiotic and biotic factors that occur in the field? And how do these factors interact with pesticides?

This thesis describes the role of pollution, specifically neonicotinoid insecticides, as an actor of the ongoing biodiversity decline.

The marine shipping industry is one of the strongest emitters of nitrogen oxides (NOx), a pollutant detrimental to ecology and human health. Over the last 20 years, the pollution produced by power plants, the industry sector, and cars has been decreasing.

Freshwater is an important resource, but at a great risk of species decline due to habitat loss, pollution and over-exploitation, and invasive alien species.

As a non-invasive genetic method, eDNA based approaches have become an important component of ecologists' and environmental managers' toolkits for biomonitoring in conservation and an increasingly important source of ecological knowledge.

Promotie

Metal-based prodrugs based on ruthenium(II) polypyridyl complexes have proven to be very suitable for application in both photodynamic therapy (PDT) and photo-activated chemotherapy (PACT).