1,253 zoekresultaten voor “levens cycle analysis” in de Publieke website
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General plant strategies and functions in wetlands: Global trait-based analyses
Wetland plants are distinguished from plants of other terrestrial ecosystems by their adaptations to specific habitat stresses, including waterlogged and flooding and the subsequent abundance of phytotoxic compounds.
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Some case studies of random walks in dynamic random environments
Promotor: Promotor: W.Th.F. den Hollander, Co-promotor: V. Sidoravicius.
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Alastair Reed over het voorkomen van gewelddadig extremisme bij herstel na belegering
Alastair Reed, universitair docent bij het Institute of Security and Global Affairs (ISGA), is geïnterviewd door Devex, het mediaplatform voor de wereldwijde ontwikkelingsgemeenschap.
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Peter Burger en Suzan Verberne in de Volkskrant over QAnon en taalkunde
Twee teams met taalwetenschappers deden onafhankelijk van elkaar onderzoek naar de identiteit van ‘Q’, de persoon van wie wordt verondersteld dat die de complottheorie heeft verspreid. Beide studies lijken te wijzen naar hetzelfde duo.
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Dit schrijven de media over Nederlandse primeur in dampkring exoplaneet
Woensdag 14 juli publiceerden Nederlandse astronomen een primeur in vakblad Nature. Het was hen als eersten ter wereld gelukt om isotopen te ontwaren in de damkring van een exoplaneet. Een ontdekking die ons meer kan leren over het ontstaan van planeten. Verschillende media schreven over de bijzondere…
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Travelling patterns on Discrete Media
This thesis describes how complex and real-world relevant analytical solutions can be found starting from a simple Nagumo problem posed on one or two-dimensional lattices.
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Leiden SPSS project
Data theory research on the analysis on the multidimensional data
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Exploring graph-based clustering and outlier detection algorithms
In the era of big data, extracting insights from complex datasets is a key challenge. This thesis demonstrates the superiority of graph-based methods over traditional clustering (e.g., k-means, DBSCAN) and outlier detection for analyzing high-dimensional and noisy data.
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Breaking the witches' spell: towards steering the soil microbiome for volatile-mediated control of the root parasitic weed Striga
Striga hermonthica, commonly known as witchweed, infests major cereal crops in Sub-Saharan Africa causing severe yield losses and threatening the livelihood of millions of resource poor farmers.
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Targeted Therapy for Triple-Negative Breast Cancer
The research described in this thesis focused on identifying novel drug targets and synergistic combinations for triple-negative breast cancer (TNBC), a virulent subtype of breast cancer with a dismal prognosis and limited therapeutic options.
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Another Brick in the Wall: The role of the actinobacterial cell wall in antibiotic resistance, phylogeny and development
Streptomyces are multicellular, Gram-positive bacteria in the phylum of actinobacteria which produce a high amount of bioactive natural products of which the expression is tightly coordinated with the life cycle.
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Fungi of the greening Arctic: compositional and functional shifts in response to climatic changes
Promotor: E.F. Smets Co-promotor: J. Geml
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Connecting dots between natural and artificial Photosynthesis
Decentralized plug and play systems for energy production are the future picture of our society. Artificial photosynthetic systems are used for this purpose.
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Long-term observation of protein dynamics via thermal-snapshot single-molecule spectroscopy
This dissertation revolves around the design and implementation of novel instrumentation and related measurement techniques, at the single molecule level, for use in biophysical research. Chapter 1 presents an introduction to the field of fluorescence-based single molecule measurements. In particular,…
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Zeta-values of arithmetic schemes at negative integers and Weil-étale cohomology
This work is dedicated to interpreting in cohomological terms the special values of zeta functions of arithmetic schemes.
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Collateral Transactions and Shadow Banking
Op 13 oktober 2021 verdedigde Ross Spence het proefschrift 'Collateral Transactions and Shadow Banking'. Het promotieonderzoek is begeleid door promotoren prof.mr. M. Haentjens en prof.dr. A.M. Pacces (UvA).
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Using cryo-EM methods to uncover structure and function of bacteriophages
Bacteriophages, or phages for short, are the most abundant biological entity in nature. They shape bacterial communities and are a major driving force in bacterial evolution.
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Learning from nature: using plant-soil feedback principles to improve growth and health of a horticultural crop
Plants and soils from natural ecosystems harbor great diversity of soil microorganisms, which could potentially contribute to the sustainability of horticulture. The knowledge about using wild plant species and soil from natural ecosystem to improve the crop health will advance the application of ecological…
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The electrochemical reduction of dioxygen and hydrogen peroxide by molecular copper catalysts
The electrochemical oxygen reduction reaction (ORR) is an essential half-reaction for the utilization of hydrogen as a sustainable fuel, via the conversion of hydrogen to electrons and protons facilitated by the ORR. In the most common fuel cells, the ORR is requires high loadings of non-abundant platinum…
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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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Platinum surface instabilities and their impact in electrochemistry
Hydrogen fuel cells are expected to be pivotal in the energetic transition towards renewable energy sources such as solar and wind power. However, their industrial scalability is severely hindered by the high cost and degradation rate of platinum catalysts, one of their key components. Addressing this…
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Identification and characterization of developmental genes in streptomyces
Promotor: Prof.dr. G.P. van Wezel
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Unraveling the mechanism of multicopper oxidases: from ensemble to single molecule
Promotores: Prof.dr. G.W. Canters, Prof.dr. T.J. Aartsma
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Quantitative uncertainty in LCI
Overall dispersion in LCA as result of inherent uncertainties, spread and unrepresentativeness.
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Zebrafish embryos and larvae as a complementary model for behavioural research
Promotor: Prof.dr. M.K. Richardson
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Molecular diagnostics of dense regions in nearby galaxies
This research delves into a region of space known as the interstellar medium (ISM), which is essentially the area between the stars filled with gas and dust.
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Cavities for light and sound: a cavity-enhanced platform for quantum acoustics
Surface acoustic waves (SAWs) are mechanical waves that travel along the surface of a material and find many applications in modern technologies due to the ease of excitation on piezoelectric substrates via interdigital transducers (IDTs).
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Biomimetic Copper Catalysts for the Electrochemical Oxygen Reduction Reaction
Human civilization consumes a huge amount of fossil fuels, which has resulted in an atmospheric CO2 level which has not been higher in over 800 millennia.
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Visualization of Vitamin A Metabolism
Vitamin A or retinol is essential in embryonic development, the visual cycle and the immune system.
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The evolution and plasticity of life histories upon variation in nutrition: on aging focused integrative approach
Promotores: Prof.dr. P.M. Brakefield, Prof.dr. B.J. Zwaan (Wageningen Universiteit)
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Tuesday Talk
De maandelijkse dosis onderzoeksinspiratie van Leiden Science, van onze medewerkers, voor onze medewerkers en alle andere nieuwsgierigen.
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Paving the path between low- and high-mass star formation: dynamics probed by Herschel far-infrared spectroscopy
Promotor: Prof.dr. E.F. van Dishoeck, Prof.dr. F.F.S. van der Tak (RUG)
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The evolution of chemical diversity in plants : pyrrolizidine alkaloids and cytochrome P450s in Jacobaea
Plants produce an astonishing variety of secondary metabolites (SMs) which are thought to play vital roles in the fitness of plants through ecological interactions.
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Andrea Evers over placebo-effect en conditionering
Het eerste wereldwijde congres over placebostudies van 2-4 april moest uitwijken naar de Stadsgehoorzaal om de deelnemers uit 20 landen te ontvangen. Ook de Nederlandse media lieten zich niet onbetuigd. Bekijk een selectie uit het nieuws met Andrea Evers over placebo's en conditionering.
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Rene KleijnWiskunde en Natuurwetenschappen
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Modelling the role of mycorrhizal associations in soil carbon cycling
Promotie
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Clinical aspects of migraine in relation to the menstrual cycle
Promotie
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Mathematisch Instituut
Het Mathematisch Instituut is verantwoordelijk voor het onderzoek en onderwijs in de wiskunde en de statistiek aan de Universiteit Leiden.
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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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Exploring Images With Deep Learning for Classification, Retrieval and Synthesis
In 2018, the number of mobile phone users will reach about 4.9 billion. Assuming an average of 5 photos taken per day using the built-in cameras would result in about 9 trillion photos annually.
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EuDEco
EuDEco (modellering van de Europese Data Economie) is een Coordination & Support Action (CSA) die financiering ontvangt van het Europese Horizon 2020 programma.
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Pharmacology based toxicity assessment: towards quantitative risk prediction in humans
Promotor: Prof.dr. M. Danhof
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Figuring rural development: concepts and cases of land use, sustainability and integrative indicators
Promotores: Prof. dr. G.R. (Geert) de Snoo, Dr. E. (Ester) van der Voet
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The role of the Arabidopsis AHL15/REJUVENATOR gene in developmental phase transitions
This thesis describes the functional analysis of the Arabidopsis AHL15 gene.
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Unraveling temporal processes using probabilistic graphical models
Real-life processes are characterized by dynamics involving time. Examples are walking, sleeping, disease progress in medical treatment, and events in a workflow.
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Innovation and stasis
The name ‘Jambi flora’ refers to fossil plants found as part of a rock formation from the Early Permian (296 million years old), located in the Jambi Province of Sumatra, Indonesia.
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The structure of the dusty cores of active galactic nuclei
Promotor: W. Jaffe, Co-promotor: K. Meisenheimer
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Quantitative Super-Resolution Microscopy
Promotor: T. Schmidt
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Design and Synthesis of Click Lipids as Tools to Study Immune Cell Metabolism
This thesis advances our understanding of lipid uptake, a vital first step in lipid metabolism, by developing innovative click chemistry-based tools to study how immune cells internalize lipids.
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Aggravating matters: accounting for baryons in cosmological analyses
Three major cosmology-focused missions are planned for the next decade: the Euclid space telescope, the Vera C. Rubin Observatory in Chile, and the Nancy Grace Roman Space Telescope.