487 zoekresultaten voor “plants effects” in de Publieke website
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Pollinators in complex landscapes Modelling and mapping the distribution of wild bees and hoverflies in the Netherlands
This thesis explores how bees and hoverflies are distributed across the Dutch landscape and how ecological and landscape factors shape their occurrence.
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Spatial populations with seed-bank
In populations with a seed-bank, individuals can temporarily become dormant and refrain from reproduction until they can become active again. The repository of all dormant individuals in the population is called the seed-bank. Seed-banks are observed in many taxa, including plants, bacteria and other…
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Galaxy formation and the structure of the Universe
Promotores: Prof.dr. J. Schaye, Prof.dr. S.D.M. White (MPA Garching)
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Functions of leptin in tuberculosis and diabetes: multi-omics studies across species
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.
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Turtles all the way down: multiscale simulations connecting star and planet formation
The formation of stars and planets happens over multiple scales, which can interact. In particular, planet formation happens in the dense, complex environment of star forming regions.
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Opioid and cannabis utility, effects and side effects in the treatment of chronic pain
Promotie
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Farmacologische conditionering van oxytocine reacties in gezonde vrijwilligers
Is het mogelijk om oxytocine reacties bij gezonde personen farmacologisch te conditioneren en de neurale circuits te identificeren die aan deze conditionering ten grondslag liggen?
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Linking the gene regulatory network with the functional physical structure of whole-genome engineered Arabidopsis mutants : an HR-MAS NMR-based
Climate change is a challenge for both current and future generations. New biological resources have to be developed in order to meet the demand for energy as well as the demand for food.
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Novel role of the AT-HOOK MOTIF NUCLEAR LOCALIZED 15 gene in Arabidopsis meristem activity and longevity
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.
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Can traditional forest management protect and conserve ironwood (ulin) stands? An option and approach in East Kalimantan
Promotores: G.A. Persoon, H.H. de Iongh
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Systematics, Epidermal defense and Bioprospecting of Wild Orchids
This thesis presents the systematics, epidermal defense, and bioprospecting of wild orchids.
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Archief
Op deze pagina vindt u de opnames van de online This Week's Discoveries vanaf 12 mei 2020 en een lijst sprekers vanaf oktober 2015.
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Schouwburgstraat Community Garden
In the Schouwburgstraat, LUGO is currently redesigning the back-garden in order to increase biodiversity and make it a more beautiful space. Throughout October 2023 until March 2024, we will be making changes to the garden with our team of volunteers.
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Towards artificial photosynthesis on the lipid bilayer of liposomes
Artificial photosynthesis has recognised potential to produce green and sustainable fuels from earth-abundant resources such as water, carbon dioxide (CO2), and sunlight.
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Disentangling drought-responsive traits with focus on Arabidopsis
In recent decades, climate change has led to more frequent and severe drought events, causing serious consequences such as increased forest mortality and significant crop yield losses. Understanding how drought affects plants, especially economically important herbaceous species, is crucial for predicting…
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Influence of the electrode-electrolyte interface on electrochemical CO2 reduction reaction and hydrogen evolution reaction
The goal of this thesis is to understand how interfacial parameters, such as the addition of organic additives, bulk pH or metal cations of the electrolyte, affect the relevant electrocatalytic reactions, i.e. electrochemical CO2 reduction reaction or hydrogen evolution reaction.
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Computational electrocatalysis
This dissertation focused on computational methods based on first principles calculations using the Density Functional Theory (DFT) framework. Emphasis was laid on affordable methods that can provide a tradeoff between computational expense and accuracy.
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Knots in plasma
A plasma is an ionized gas with very low electrical resistivity. As such, magnetic field lines are 'frozen in' and move with the fluid. Magnetic field lines that are linked, knotted and tangled, cannot be undone by the fluid motions.
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Monitoring drought and salinity stress in agriculture by remote sensing for a sustainable future
Food security is challenged by a growing global population and by climate change. Drought and soil salinity are considered the most important ones that inhibit crop yield and distribution. Worryingly, climate change is predicted to increase not only their frequency and severity, but also their co-occurrence,…
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Harnessing zebrafish xenograft models for ocular melanoma treatment discovery
The aim of this thesis was to develop novel treatment strategies for different types of eye melanoma utilizing zebrafish models. We first establish orthotopic and ectopic xenograft models for uveal and conjunctival melanoma by engraftment of the immortalized cells derived from these tumors into zebrafish…
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Modelling the role of mycorrhizal associations in soil carbon cycling: insights from global analyses of mycorrhizal vegetation
In this PhD study, I aim to deepen our understanding of the influence of major mycorrhizal types, namely arbuscular mycorrhizae (AM) and ectomycorrhizae (EM), on the global soil carbon cycle and their potential distribution changes under future environmental shifts.
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The role of zebrafish larvae for studying anxiety-like behaviour
The main aim of my Ph.D. thesis is to further explore the value of using early developing zebrafish larvae (up to 5 dpf) as a model to study anxiety-like behaviour and their pharmacological modulation with drugs.
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Determining the most appropriate dose metrics for evaluating dose-response relationships of metal-based nanoparticles to Zebrafish embryos
Promotores: Prof.dr. W.J.G.M. Peijnenburg & Dr. M.G. Vijver
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Impact of nitrogen fertilization on the soil microbiome and greenhouse gas emission
The use of N fertilizers has increased worldwide in the past century. While this increased input of N has increased food productivity, it has also contributed to decreases in biodiversity, soil quality and environmental health, including increases in greenhouse gas emissions.
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Design and synthesis of metal-based chemotherapeutic agents for targeted DNA interactions or DNA repair pathway modulation
The research presented in this thesis explores the chemotherapeutic potential of metal-based compounds as chemotherapy agents, with an initial focus on the synthesis and DNA interaction studies of platinum and palladium compounds utilizing the [Pt(bapbpy)]2+ scaffold. The study identifies intercalation…
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Dynamics of a β-lactamase
BlaC is the β-lactamase of Mycobacterium tuberculosis. We show that it can recover from inhibition by clavulanic acid and that phosphate helps it do so.
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Dancing with the Stars
This thesis develops a method for direction dependent calibration of the ionosphere in radio interferometric data.
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Assessing global regionalized impacts of eutrophication on freshwater fish biodiversity
Freshwater biodiversity has been threatened by eutrophication due to excessive nutrients in the environment. Releasing the freshwater species from such pressures requires efforts from industry and manufacturers to avoid emissions to vulnerable and high-risk regions.
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From stress to success; How actinobacteria exploit live without a cell wall
The aim of this thesis was to study phage infection in Streptomyces, focused on cell wall-deficient cells. Bacteriophages (or phages in short) attach to the cell wall of bacteria after which they replicate and lyse the host cell.
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The power of biotic ligand models : site-specific impact of metals on aquatic communities
Promotor: G.R. de Snoo, Co-promotores: M.G. Vijver, J.P.M. Vink
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Enzyme-substrate interactions in the processive enzyme xylanase
The primary goal of this research is to deepen our understanding of substrate-enzyme interactions in Glycoside hydrolases. For this purpose, Bacillus circulans xylanase (BcX) has been selected as a well-established model to examine the Michaelis complex and glycosyl-enzyme adduct.
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The role of the tumor suppressor Lkb1 in energy homeostasis
The work in this thesis describes the fundamental role of Lkb1 as a conductor of metabolism-related processes in zebrafish larvae.
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High-throughput quantification and unambiguous identification for metabolomics
The challenge of achieving fast quantification in metabolomics is the presence of severe matrix effects during the MS analysis of complex samples.
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Hunting for new physics in the primordial Universe
This thesis contributes to studying primordial cosmology theories and their detectability in future observations.
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Knowledge discovery from patient forums: gaining novel medical insights from patient experiences
Patients share valuable advice and experiences with their peers in online patient discussion groups.
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Thiosugars: reactivity, methodology and applications
Carbohydrates, alongside proteins and nucleic acids, constitute a crucial and versatile family of biomolecules present in all life forms. They manifest as monosaccharides, oligosaccharides, and polysaccharides, covalently bonded to proteins and fats. Carbohydrates are integral to plant and arthropod…
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Quantum ontsluiten voor de samenleving: de kracht van metaforen
Kiemproject: Hoe kunnen metaforen bijdragen aan betere maatschappelijke betrokkenheid bij quantumwetenschap en -technologie, en welke factoren beïnvloeden de acceptatie of weerstand tegen metaforen bij zowel experts als leken?
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Placebo onderzoek: Farmacologische conditionering
Het belangrijkste doel is het onderzoeken van de mogelijkheid om het lichaam te leren een soortgelijke fysiologische (autonome, neuro-endocriene of immuunsysteem) en fysieke (b.v. desensibilisatie van hardnekkige lichamelijke symptomen) reactie te laten vertonen op placebomedicatie als op actieve medicatie…
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Research Seminar Series
For questions and suggestions regarding the series, please contact prof. dr. Olaf van Vliet or dr. Max van Lent
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Oudheid in de Hortus Botanicus Leiden
Welke planten in de Mediterrane tuin waren al bekend bij de oude Grieken en Romeinen, en hoe werden ze toegepast?
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Unieke verzameling plantenextracten voor onderzoek en gebruik geopend
Onderzoekers en ondernemers die zich bezighouden met bijvoorbeeld gezondheid of gewasbescherming kunnen vanaf nu terecht bij de extractenbibliotheek. Op 9 september is de bibliotheek feestelijk geopend. Deze bibliotheek stelt een uitgebreide verzameling van plantenextracten beschikbaar voor het onderzoek…
- Tumult 1974-2024 (najaar/autumn 2024)
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Growth and Transport properties of (Rare Earth)TiO3 / SrTiO3 interfaces
This thesis presents the results of a study on the interfaces of insulating oxides with and without the insertion of a magnetic layer.
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Novel analytical approaches for the characterization of cell-based medicinal products and their formulation
Cell-based medicinal products (CBMPs), such as CAR T cells, are highly complex biopharmaceutical products offering various treatment options for serious illnesses such as cancer or autoimmune diseases.
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Systems pharmacokinetic models to the prediction of local CNS drug concentrations in human
Clinical development of drugs for central nervous system (CNS) disorders has been particularly challenging and still suffers from high attrition rates.
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Pharmacology based toxicity assessment: towards quantitative risk prediction in humans
Promotor: Prof.dr. M. Danhof
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B cell modulation in atherosclerosis
Cardiovascular disease is a major global burden and atherosclerosis is the main underlying pathological process.
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Investigating lipid formulations for efficient RNA delivery using zebrafish models
Lipid formulations have demonstrated strong potential for nucleic acid delivery,particularly with the success of COVID-19 vaccines. Despite these advances, manyaspects of lipid formulations remain unclear.
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A novel formulation for skin barrier repair : from ex vivo assessment towards clinical studies
The stratum corneum is the outermost skin layer and consists of dead cells embedded in a lipid matrix.
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Weighing the Dark: Cosmological Applications of Gravitational Lensing
Promotor: K. Kuijken, Co-Promotor: H. Hoekstra