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

This thesis is devoted to an in-depth examination of the various effects of disorder in the cuprate high-temperature superconductors.

Promotie

In this thesis, I study 1) metabolic alterations in tuberculosis related to wasting syndrome in human patients as well as in rodent and fish animal models. 2) effects of the mutation of the leptin gene on cachexia and diabetes in rodent and zebrafish animal models.

Promotor: Prof.dr. W.J.G.M. Peijnenburg

Curved single crystals provide variable, but well-defined surface structures.

The challenge of achieving fast quantification in metabolomics is the presence of severe matrix effects during the MS analysis of complex samples.

To limit the effects of climate change, global average temperature since pre-industrial measurements are to be kept well below 2 °C preferably even at 1.5 °C.

1. To what extent do metallic NPs added to soil extractions change the activity, abundance, or community composition of microbes? 2. How do the effects of metallic NPs on soil microbes differ from the effects of the ions shedding from corresponding NPs?

Plant architecture has distinct forms in different plant species, but also within a species the finalarchitecture of a plant is determined by its gradual development and changes therein induced by environmental conditions during the plant’s life cycle.

Welke stoepplanten groeien waar en waarom? Hoe maken we de stad groener? En hoe genezen we plantenblindheid? Het antwoord op deze vragen zoekt Nienke Beets, PhD kandidaat stadsflora en citizen science, samen met de nieuwsgierige burgers van Nederland.

What is the mechanism of action preceding a physiological effects induced by metallic nanoparticles?

Twee onderzoekers uit de onderzoeksgroep Plant ecology and Phytochemistry van het Instituut Biologie Leiden hebben beurs gekregen van de Stichting Technologische Wetenschappen.

Although nanoparticles are extensively used in various applications like consumer products and have most probably entered the environment, little is known about the effects of these particles on living organisms.

Promotor: Prof.dr. H.J.A. Rottgering

Promotores: H. Schiessel, G.T. Barkema

The external tissues of plants and animals are colonized by microbial communities termed microbiota. When organisms are exposed to environmental pollutants, these substances will therefore encounter microbiota at the exposure interface.

Mechanical forces are known to play an important role in bacterial colonies. In this dissertation, we study the self-organization at various stages of growing bacterial colonies, and focus on the mechanical effects of cell growth.

Promotor: E.F. Smets, Co-promotor: J. Geml

We explored the Universe using weak gravitational lensing, a phenomenon that occurs when light from distant galaxies is bent by the gravitational fields of closer cosmic objects, much like how a lens distorts light.

The aim of the research presented in this thesis was to develop new methods forchallenging systems in liquid-state NMR using paramagnetic effects generated by thetwo-armed probe CLaNP-5.

One of the effects of climate change is the phenomenon of desertification, a process that occurs in semi-arid and arid areas and causes land degradation as well as vegetation loss. Due to the lack of resources, vegetation self-organizes to sustain itself by forming large-scale spatial patterns.

Novel entities may pose risks to humans and the environment. The small particle size and relatively large surface area of micro- and nanoparticles (MNPs) make them capable of adsorbing other novel entities, leading to the formation of aggregated contamination.

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: M. Danhof Co-promotor: O.E. Della Pasqua

Sound is everywhere in the marine environment and hearing is therefore a very important for stimuli for fish. They use sound for orientation and communication, during migration, aggregation and spawning, but also for detection of prey and predators.

Promotor: Prof.dr. A.P. IJzerman, Co-Promotor: L.H. Heitman

Promotie

What are the global relationships between environmental conditions and abundance of distinct types of mycorrhizal fungi in soil and plant roots?

Effects of maternal smoking, premature birth, intra-uterine growth retardation and asphyxia on child development.

In this course, you will learn about sustainability and staying with the environmental boundaries of our planet. You will gain an understanding of the effects of growing affluence and population growth, the key challenges we are facing, and ways to influence your direct environment.

Economic Anthropologist Erik Bähre talks on the Dutch News Radio Channel BNR about the effects of the Russia-Ukraine grain agreement for African countries.

Vandaag, 23 september, wordt Paul Hooykaas, hoogleraar moleculaire genetica in het Instituut Biologie Leiden (IBL), geïnstalleerd als Akademiehoogleraar.

Lezing, Tuesday Talks: Science Insights

Lezing, Com(parative) Syn(tax) Series

Plants and their pollinators form complex interaction networks. Within these networks, species differ widely in the number of species they interact with.

Agrobacterium tumefaciens, a gram-negative plant pathogen belonging to the family Rhizobiaceae, is the causative agent of crown gall disease, which can affect many plant species including agronomically important ones.

Promotor: E.F. Smets, Co-promotor: T.R. van Andel

Bert van Duijn is werkzaam op het gebied van planten-elektrofysiologie.

Positieve verwachtingen kunnen het gevoel van jeuk beïnvloeden en placebo-effecten oproepen, terwijl negatieve verwachtingen nocebo-effecten bij jeuk kunnen veroorzaken. Er zijn aanwijzingen dat placebo-effecten ook kunnen optreden wanneer mensen weten dat zij een placebo innemen. Er is weinig bekend…

Welke rol spelen stress en angst bij de vorming van nocebo hyperalgesie?

In this work, we investigate the minute circular dichroism effects of single nanoparticles.To this aim, we apply photothermal imaging with a polarization-modulated heating beam.

Promotie

Promotie

Kunst en cultuur, Zondagwandeling eetbare en smakelijke planten

What is vegetation structure and composition in SFM primary forest, secondary logged over forest (logging FSC certified and logging non certified) in comparison to primary forest? What is avian guild diversity in SFM primary forest, secondary logged over forest (logging FSC certified and logging non…