The findings in this thesis improve the understanding of 1) the relationship between exposure characteristics and toxicity of ENPs, 2) the joint toxic action of ENP mixtures and the comparison to metal salt mixtures, 3) how NOM affects the individual and joint toxicity of ENPs, 4) the extent of trophic…

The rapidly increasing commercial application of metallic nanoparticles within products will inevitably enhance the amount of NPs being released into soil.

The type-IV secretion system (T4SS) is a machinery able to transfer DNA and proteins between bacteria and in certain cases also to eukaryotic cells.

Promotor: Huub J.M. de Groot, Co-promotor: Francesco Buda

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…

De afdeling Environmental Biology (CML-EB) houdt zich bezig met vraagstukken rondom biodiversiteit en natuurlijke hulpbronnen op het platteland in westerse en niet-westerse gebieden.

Promotores: G.W. Canters, T.J. Aartsma

Promotie

Building a Deep Cross-media Transfer Network to extract visual relations that relieve the problem of insufficient training data for visual tasks.

Het Centrum voor Milieuwetenschappen (CML) is een instituut van de faculteit Wiskunde en Natuurwetenschappen aan de Universiteit Leiden.

The studies described in this thesis deal with glycosidases, in particular alpha-galactosidases.

Multicellular giant algae Chara species have been widely used in physiological studies for decades.

What are the environmental trade-offs for SMEs considering moving from monoculture aquaculture practice towards IMTA? What are the environmental trade-offs comparing IMTA species with their conventional monoculture alternatives?

Promotor: W. Jaffe, Co-promotor: K. Meisenheimer

Promotores: Prof.dr. W.J.G.M. Peijnenburg & Dr. M.G. Vijver

Aim: To develop and enable application of a practical, flexible, user-friendly platform to provide the scientific community with a tool to generate land surface products and its associated uncertainties and exploit these for data-intensive science.

Artificial photosynthesis has recognised potential to produce green and sustainable fuels from earth-abundant resources such as water, carbon dioxide (CO2), and sunlight.

Promotor: Prof.dr. E.F. van Dishoeck

Biodiversity enables ecosystems to thrive through the synergy of functional differences among organisms. While human well-being strongly depends on biodiversity-driven ecosystem services, human actions are also at the root of current unprecedented biodiversity declines.

This thesis focuses on protoplanetary disks: flattened structures of gas and dust around young stars in which planets are expected to form and grow.

Promotores: Prof.dr. G.W. Canters, Prof.dr. T.J. Aartsma

This thesis discusses the physical and chemical processes than influence the composition of forming planets.

This thesis describes a study from both a theoreticaL and an experimental point of view.

Promotor: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon, Co-promotor: H.H. de Iongh

What are the behaviours of plant traits throughout various points in the growing season in a radiative transfer model framework and how well can this knowledge be integrated through data assimilation to provide priors for robust local and global vegetation products and analysis?

Promotie

An objective of this research was to achieve direct, well-defined and non-rate-limiting electron transfer between respiratory enzymes and the electrode surface by means of 'Q-wires'.

In this thesis unconventional tools based on fluidic interfaces were developed to study the surface and interfacial chemistry of graphene, to characterize the intrinsic properties of graphene, to disentangle the effects of substrate and of the environmental factors, and to improve handling protocols…

Promotor: Prof.dr. H.J.M de Groot, Co-Promotor: A. Alia

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

Nanomaterialen kunnen veel verder doordringen in onze voedselketen dan tot nu toe werd gedacht. Dat komt doordat de deeltjes in elk organisme in de keten van vorm en grootte blijken te veranderen. Onderzoekers van het Centrum voor Milieuwetenschappen Leiden ontdekten dit bij toeval, toen zij een door…

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

In the search for sustainable energy solutions, the idea of artificial photosynthesis has been proposed as an approach with which to use water and sunlight to produce hydrogen.

As a virtually inexhaustible source, solar energy plays a major role in future global energy scenarios.

Promotie

To deliver a Virtual Sensor tool optimised to exploit the synergy between Sentinels 2 and 3 to allow the consistent retrieval of land surface parameters (Albedo, LAI, and LST); To extend the existing capabilities of land EO data assimilation tools to add capacity to handle data in the thermal domain…

In the thesis we demonstrated an 85% state transfer efficiency between two mechanical modes coupled to a common optical mode via stimulated Raman adiabatic passage (STIRAP) in the classical regime. We also showed possibilities to manipulate quantum states of the mechanical modes via STIRAP.

Protein–protein complexes are formed via transient states called encounter complexes that greatly influence the formation of the stereospecific complex.

Supervisor: P.J.J. Hooykaas Co-Supervisor: R. Offringa

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.

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.

Lezing, Lezing onderdeel van serie

To get an idea of the science communication products and research that is possible, a few examples of student projects of recent years are shown below.

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