688 zoekresultaten voor “random walker in random environmental” in de Publieke website
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Diversity and distribution of octocorals and scleractinians in the Persian Gulf region
Promotor: E. Gittenberger, Co-promotores: B.W. Hoeksema; L.P. van Ofwegen
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Satellite remote sensing of plant functional diversity
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.
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Effects of pesticides on aquatic macrofauna in the field
Promotores: W.J.G.M. Peijnenburg, G.R. de Snoo, Co-promotor: M.G. Vijver
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Externe onderzoekssamenwerking
Binnen het brede netwerk van de Universiteit Leiden neemt het instituut deel aan onderzoek binnen de volgende profileringsgebieden:
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Management implications for invertebrate assemblages in the Midwest American agricultural landscape
Promotor: G.R. de Snoo Co-promotor: C.J.M. Musters
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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.
- Microplastics
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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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An egg is always an adventure
Anthropogenic change is reshaping ecological systems, raising concerns about increasing transmission of infectious diseases. Among these, mosquito-borne diseases may be particularly sensitive to environmental change, as their transmission depends on vector populations.
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Insights from modeling metabolism and amoeboid cell motility in the immune system
This thesis focuses on two processes involved in fighting infections: metabolism and immune cell motility and navigation.
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Towards secure and sustainable supply chains: a multi-perspective risk assessment for photovoltaics
Supply risks are not new. But the aggravation of power conflicts on the international stage coupled with global shifts towards energy transition and digitalization has triggered the next supply risk research era.
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Terrestrial field trials for side-effects of pesticides
The thesis describes terrestrial field trials aimed to detect side-effects of pesticides within the framework of pesticide registration procedures. Field trials were developed using vascular plants Brassica napus and Poa annua, caterpillars Pieris brassicae and effects on decomposition were studied…
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Een nieuw tijdperk voor natuurbehoud met behulp van hyperspectrale en lidargegevens; de Oostvaardersplassen als casestudie
Dit project beoogt de ontwikkeling van geavanceerde data-analysemethoden voor monitoring en het vergroten van ons inzicht in de dynamiek van de biodiversiteit in natuurgebieden zoals de Oostvaardersplassen.
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Plant-soil interactions determine ecosystem aboveground and belowground processes in primary dune ecosystems
Soil biodiversity is of great importance for the maintenance of multifunctionality in terrestrial ecosystems.
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MYC transcription factors: masters in the regulation of jasmonate biosynthesis in Arabidopsis thaliana
Promotor: J.M. Memelink
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They grow up so fast - Stellar accretion in a starburst cluster
When a star is born in our Galaxy, it is quite likely that it has formed within a massive cluster, which hosts numerous high-mass stars bathing their lower mass neighbours in UV radiation.
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Tweerichtingsverkeer tussen mens en biodiversiteit
Inaugurale rede
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Discovery, characterization and implementation of novel polyester depolymerizing enzymes
Plastics are an intrinsic part of our society. Annually, 400Mt of plastics are produced of which roughly 40% is discarded within a year.
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Arnold TukkerFaculteit der Wiskunde en Natuurwetenschappen
tukker@cml.leidenuniv.nl | 071 5275632
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‘Voedsel is onbetwistbaar een grote factor in ons watergebruik’
Van waterzuiveringsinstallaties tot een lekkere warme douche, de CO2-uitstoot ten gevolge van het watergebruik in de VS staat gelijk aan dat van 50 miljoen auto’s die een jaar lang rondrijden. In The Washington Post raadpleegt journalist Tik Root verschillende experts om te leren over manieren om ons…
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Piepkleine deeltjes bouwen zelfstandig complexe structuren
Kleinere computerchips, smallere cameraatjes; ze worden steeds moeilijker om te maken. Maar wat als de bouwstenen zichzelf opbouwen? Natuurkundige Daniela Kraft bedacht een methode om deeltjes aan te sturen in samenklonteren. Publicatie in ACS Nano.
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De hersens, de hond en het blaffen
Uit onderzoek van neurowetenschapper Bastien Boutonnet en zijn Amerikaanse collega blijkt dat onze hersenen sneller een beeld oproepen na het horen van het woord ‘hond’ dan na het horen van geblaf. Dit is opvallend omdat talige informatie abstracter is dan een geluid en daardoor het deel van de hersenen…
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Armin Cuyvers over het stikfstofbeleid n.a.v. het bezoek van Timmermans aan Den Haag
Geen tijd te verliezen met het natuurherstel. Om die reden en om te laten zien dat de Europese Commissie geen boeman is en ook een geen vijand kwam Frans Timmermans afgelopen dinsdag in de Tweede Kamer om met BBB-leider Caroline van der Plas te praten over het stikstofbeleid. Van der Plas wil graag…
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Machine learning voorspelt voorkeuren
Cláudio de Sá voorspelt voorkeuren van mensen door gebruik te maken van ranglijsten. Dit doet hij door ‘klassieke’ machine learning-technieken aan te passen. Zijn werk kan onder andere gebruikt worden om de uitslagen van verkiezingen te voorspellen. Promotie op 16 december.
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GLOBOX
GLOBOX is a spatially differentiated multimedia fate, exposure and effect model. It is used for the calculation of spatially differentiated LCA characterisation factors on a global scale.
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Een chemische stof die leven geeft en kapotmaakt: Jan Willem Erisman over ammoniumnitraat
Naar aanleiding van de explosie in Beirut maakte BBC podcastserie 'The Foodchain' een aflevering over de chemische stof die de explosie veroorzaakte: ammoniumnitraat. Deze stof wordt veelvuldig gebruik in kunstmest. Met Hoogleraar Environmental sustainability Jan Willem Erisman spraken ze over de effecten…
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Temperature effects on genetic and physiological regulation of adaptive plasticity
Promotor: P.M. Brakefield
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Onderzoek
Steden, Voedsel, Water, Biodiversiteit, Bronnen en Energie: dit zijn de belangrijkste onderzoeksthema’s voor het CML. Ons doel is altijd om wereldwijd voorop te lopen in ons vakgebied. En echte impact te hebben met onze onderzoeksprogramma’s.
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Sterre ter HaarWiskunde en Natuurwetenschappen
s.f.ter.haar@cml.leidenuniv.nl | +31 71 527 2727
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Kristie TjokroFaculteit der Wiskunde en Natuurwetenschappen
k.j.tjokro@cml.leidenuniv.nl | 071 5272727
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Stephanie CapFaculteit der Wiskunde en Natuurwetenschappen
s.cap@cml.leidenuniv.nl | 071 5272727
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Md Faysal TareqFaculteit der Wiskunde en Natuurwetenschappen
m.f.tareq@cml.leidenuniv.nl | 071 5272727
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Expanding the coverage of ecosystem services in life cycle assessment: an interdisciplinary venture
To contribute to the body of knowledge aiming at a better coverage of ecosystem service assessment in LCA studies, this thesis dives into the challenges of incorporating existing ecosystem service methods within the impact assessment phase of the conventional LCA framework.
- Publicaties
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Chemical Similarity: Structuring Risk and Hazard Assessment
At the moment, over 350.000 chemicals are registered worldwide for production and use. Their application, however, may harm human health and the environment.
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Comparative biology of common and grey seals along the Dutch coast : stranding, disease, rehabilitation and conservation
Promotores: H.A. Udo De Haes, P.M. Brakefield
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Career
The field of science communication is very broad. Below is a list of organisations where SCS students can fulfill internships or where alumni have found jobs.
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Metabolomics assisted with stable-isotope labeling: exploring neuronal metabolism related to Parkinson’s disease
The progressive loss and degeneration of dopaminergic neurons is a major pathological hallmark of Parkinson's disease (PD). The onset and progression of PD can be triggered by multiple risk factors, for instance, genetic mutation, environmental exposure, and aging.
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Jimpitan in Wonosobo, Central Java: an indigenous institution in the context of sustainable socio-economic development in Indonesia
In times of hardships or crisis, local people know how to deal with it using their resourcefulness. Although efforts are sometimes made by the government to help them, they are fully aware that community support is at least equally important.
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Human skin equivalents for atopic dermatitis: investigating the role of filaggrin in the skin barrier
Promotor: Prof.dr. J.A. Bouwstra, Co-promotor: A. El Ghalbzouri
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The potential of multi-scale EE-MRIO to support sustainable development policies in Indonesia
Global Environmental Extensions Multi-Regional Input-Output (EE-MRIO) analysis is often used to analyze how changes in global and national demand for products lead to socioeconomic and environmental impacts at the national level.
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Quantifying the toxicity of mixtures of metals and metal-based nanoparticles to higher plants
Promotores: Prof.dr. W.J.G.M. Peijnenburg & Dr. M.G. Vijver
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Quantitative modelling of the response of earthworms to metals
Promotor: Prof.dr. W.J.G.M. Peijnenburg
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Green defense against thrips- Exploring natural products for early management of western flower thrips
As a contribution to the changing legislation and evolving societal attitudes concerning environmental issues, this project aims to enhance and manipulate the plants’ own natural defense mechanisms against western flower thrips (WFT).
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Neonicotinoids in nature: The effects on aquatic invertebrates and their role in ecosystems
This thesis describes the role of pollution, specifically neonicotinoid insecticides, as an actor of the ongoing biodiversity decline.
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Lithium-ion batteries and the transition to electric vehicles
The transition to electric vehicles (EVs) reduces vehicle emissions to combat climate change. EVs raise concerns regarding the production of lithium-ion batteries and related emissions; while batteries can also provide energy storage services for the electricity system.
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Unsprayed field margins: effects on environment, biodiversity and agricultural practice
A management strategy has been developed for field margins to reduce pesticide drift to non-target areas and to promote biodiversity on arable land. To this end, 3 and 6 m wide strips along the edges of winter wheat, sugar beet and potato crops have been left unsprayed with herbicides and insecticides…
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Stock-driven Scenarios on Global Material Demand
The role of material production as a driver of environmental impacts is increasing, which calls for a better understanding of global material flows. This thesis explores the role of in-use stocks of products, buildings and infrastructure as a key driver of global material demand and discusses the implications…
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The impact of climate variability on the ecology of a lion (Panthera leo Linnaeus 1758) population and lion livestock conflicts in the Amboseli
Promotor: Prof.dr. G.R. de Snoo, Prof.dr. G.A. Persoon, Co-promotor: H.H. de Iongh