518 zoekresultaten voor “trollope anthony 1985 1492 main mackenzie” in de Publieke website
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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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Reasoning about object-oriented programs: from classes to interfaces
Throughout the history of computer science, a major challenge has been how to assert that software is free of bugs and works as intended. Software bugs can lead to serious negative impacts on any software system. Throughout the main body of the thesis, we implemented a series of studies on exploring…
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Multiple star formation: chemistry, physics and coevality
Multiple stars, that is two or more stars composing a gravitationally bound system, are common in the universe.
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The impact of defense hormones on the interaction between plants and the soil microbial community
The soil ecosystem consists of the largest reservoir of biodiversity on Earth.
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Self-Adjusting Surrogate-Assisted Optimization Techniques for Expensive Constrained Black Box ProblemsBagheri, S.
Optimization tasks in practice have multifaceted challenges as they are often black box, subject to multiple equality and inequality constraints and expensive to evaluate.
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Substances from Cradle to Grave
Materials balances have been used in the recent past for the analysis of substance oriented environmental problems and the formulation of measures for environmental policy. In this study an integrated tool, based on the materials balance principle, has been developed for the analysis of both environmental…
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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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Complex multiplication of abelian surfaces
Promotor: Peter Stevenhagen
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Using mouse models to uncover genes driving tumorigenesis and therapy resistance in human breast cancer
To improve cancer treatments, personalized medicine approaches have aimed to identify exactly which mutations are driving tumor development in a given patient and specifically target these mutations using precision therapies.
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Attacks on hash functions and applications
Promotores: R. Cramer, A.K. Lenstra, Co-Promotor: B.M.M. de Weger
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Are we there yet? Advances in anytime-valid methods for hypothesis testing and prediction
Statistical considerations guide the design and implementation of the experiments that scientists perform. For instance, in a clinical trial about a the efficacy of a treatment, its effect in a certain minimum amount of patients has to be observed in order to make confident assertions about the efficacy…
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On metrics and models for multiplex networks
In this thesis, we extend the concept of null models as canonical ensembles of multi-graphs with given constraints and present new metrics able to characterize real-world layered systems based on their correlation patterns.
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The galaxy–dark matter connection: a KiDS study
In this thesis, the research focuses on the properties of dark matter and dark matter haloes and how they connect with the galaxies we can observe in the Universe.
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Environmental footprints: assessing anthropogenic effects on the planet's environment
Promotor: Prof.dr. G.R. de Snoo, Co-promotor: R. Heijungs
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Laboratory studies of Water Ice in Space
Astronomical observations of cold regions in the universe show a rich inventory of ices. Part of these ices may end up on planets like our own, but in that journey they will be exposed to considerable amounts of radiation.
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Supercritical carbon dioxide spray drying for the production of stable dried protein formulations
Promotor: W. Jiskoot, Co-promotor: H.A. Every
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An Online Corpus of UML design models: Construction and empirical studies
Promotores: J. Kok, M. Chaudron (Chalmers University)
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Chemical reactivity of O2, CO and CO2 on Cu surfaces
Despite the history of studies on methanol formation from CO2, the dominant elementary reaction steps that constitute the chemical mechanism for this catalyzed process are not determined.
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Functional xylem anatomy: intra and interspecific variation in stems of herbaceous and woody species
My PhD thesis investigates the ecological significance of resistance against drought-induced air bubble formation inside the water conduits of plants (embolism), and the plasticity and functional aspects of stem anatomical traits in woody and herbaceous species.
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Comparative biology of common and grey seals along the Dutch coast
What are the main factors associated with the stranding of the two seal species? What are the factors influencing the prevalence of disease in the two species? Which human-related factors influence the populations of the two seal species?
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When data compression and statistics disagree: two frequentist challenges for the minimum description length principle
Promotor: P.D. Grünwald
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Eredoctoraten en prijzen
De Universiteit Leiden reikt regelmatig eredoctoraten, onderscheidingen en prijzen uit.
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Skeletonderzoek biedt inzicht in cultuur Caribische indianen
Archeologe Hayley Mickleburgh onderzoekt hoe lijken ontbinden. Dat helpt bij de reconstructie van veranderingen in begrafenisrituelen van Caribische indianen.
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Gaia toont de Melkweg in 3D
Vanaf een lanceerinstallatie in Frans Guyana gaat op 19 december de Europese satelliet Gaia de ruimte in om een zeer gedetailleerde driedimensionale kaart van het Melkwegstelsel maken. De Leidse astronoom Anthony Brown leidt het consortium dat de vloed aan meetgegevens gaat verwerken.
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Docentenbijeenkomst over natuurkunde-onderzoek en -onderwijs
De opleiding Natuurkunde organiseert op dinsdagavond 31 januari haar driejaarlijkse bijeenkomst voor middelbare schooldocenten. Het programma bestaat uit lezingen over ontwikkelingen in de hedendaagse fysica en de nieuwste initiatieven in de onderwijswereld.
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Samenwerking tussen Arubaans Archeologisch Museum en Leidse Faculteit Archeologie vernieuwd
De afgelopen jaren is er een vruchtbare samenwerking geweest tussen het Nationaal Archeologisch Museum Aruba en de Faculteit der Archeologie, met name rondom het NEXUS 1492 project. Nu dat de samenwerkingsovereenkomst aflopend was hebben de twee instellingen besloten deze te verlengen.
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CECILIA2050 - Optimal EU climate policy
Development of scenarios for 2050 detailed in an IO framework
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New Dutch LCA guide
Writing an operational guide to the ISO standards for LCA and related sub-projects.
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Does knowledge of environmental performance change farmer's behaviour?
Does knowledge of environmental performance change farmer's behaviour?
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Development of a low cost technology for in-situ treatment of groundwater for potable and irrigation purposes (TiPOT)
Description of Development of a low cost technology for in-situ treatment of groundwater for potable and irrigation purposes (TiPOT) (2004 - 2007)
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Wat is papyrologie?
De Griekse papyrologie is de wetenschap die zich bezighoudt met het ontcijferen en bestuderen van alle teksten die in de Griekse taal op papyrus geschreven staan. Papyrus was het schrijfmateriaal van de oudheid en werd vervaardigd uit op elkaar gekleefde reepjes van de papyrusplant.
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Competition on bird feeeders between introduced Ring-necked parakeets and native bird species in the Netherlands
Does the presence of Ring-necked parakeets negatively influence feeding and feeding behaviour of native bird species on artificial bird feeders and if so, what are possible solutions?
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Positioning of current Environmental tools & an outlook to the future
Review of new technical decisionsupport systems in the environmental field, and application in water management decission processes.
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Evaluating Asian aquaculture using Life Cycle Assessment (LCA)
Are there significant differences among the environmental impacts resulting form the production of Asian aquaculture commodities and what are the main causes for these?
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Co-benefits & Co-damages of environmental policies related to climate change and long-range transboundary air pollution
Using the principles of Industrial Ecology in Environmental Policy making in two cases: transition to a hydrogen economy and chlorinated compounds.
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Adaptive Semi-Strong Ecosystem Dynamics
Developing methodes to understand the evolution of patches in natural ecosystems
- Symposia 2023-2024
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Generalized Strictly Periodic Scheduling Analysis, Resource Optimization, and Implementation of Adaptive Streaming Applications
This thesis focuses on addressing four research problems in designing embedded streaming systems.
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Student Information
When you have decided to participate in a Summer School of Leiden University, there are some matters you need to know before arrival. Please take a few minutes to read through the information here to find out what you can do from your side to smooth the process.
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Waste Collection Systems Assessed and Good Practices Identified (COLLECTORS)
What is the environmental impact of different waste collection systems across Europe? How can the collection be improved when considering collection, sorting, and treatment, as well as use options for secondary materials?
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Carbon4PUR | Turning industrial waste gases (mixed CO/CO2 streams) into intermediates for polyurethane plastics for rigid foams/building insulation
What would be the environmental performance of the Carbon4PUR technology at industrial scale in the future?
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Leidse studenten denken mee over erfgoed Middelharnis
Moet er te midden van het erfgoed van de oude vissershaven van Middelharnis een nieuwe brug komen? Dat was de case-study waar studenten van archeoloog Martijn Manders zich over bogen. Ze bezochten de haven zelf en haalden de lokale krant Eilanden Nieuws.
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Hoe satellieten en AI helpen in de strijd tegen plunderaars van historische scheepswrakken
Scheepswrakken worden bedreigd door plunderaars op zoek naar schroot en schatten. Satellieten en kunstmatige intelligentie moeten dat helpen voorkomen. Elsevier Weekblad interviewt Hoogleraar Onderwaterarcheologie Martijn Manders over dit onderwerp.
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Onderwaterarcheoloog Martijn Manders in Het Klokhuis
Het VOC-schip De Rooswijk zonk 300 jaar geleden voor de kust van Engeland. Het tv-programma Het Klokhuis volgde Martijn Manders tijdens zijn bergingsexpeditie naar het schip.
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Kunstmatig brein helpt Gaia satelliet extreem snelle sterren vangen
Met behulp van software die de hersenen nabootst, heeft ESA’s Gaia satelliet zes sterren gespot die met hoge snelheid vanuit het centrum van ons sterrenstelsel naar de rand vliegen. Dit kan essentiële informatie geven over de meest obscure gebieden in ons Melkwegstelsel.
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50 jaar Leidse archeologie in Oss
De Gemeente Oss is een begrip in de wereld van de Nederlandse archeologie. Al vijftig jaar leggen Leidse archeologen, in samenwerking met inwoners van Oss, de geschiedenis van de gemeente bloot. In 2024 vieren we deze 50 jaar aan samenwerking. Houd deze website in de gaten voor onze activiteiten!
- Nobelprijswinnaars
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Veertig Leidse wetenschappers ‘herschrijven’ Caribische geschiedenis
De indiaanse cultuur in het Caribisch gebied veranderde weliswaar flink na de komst van Columbus, maar is zeker niet weggevaagd. Hoe die veranderingen plaatsvonden, laten zo’n veertig Leidse wetenschappers mooi zien in het NEXUS1492-project.
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Schatkamer voor astronomen met ruim 1,3 miljard sterren geopend
De kleur en helderheid van meer dan 1,3 miljard sterren, maar ook hun 3D-posities, en 2D-bewegingen. Dat is de inhoud van de tweede dataset van de ‘one billion starmapper’ Gaia, die Europees ruimteagentschap ESA op 25 april opende.
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Wetenschappers ontdekken grootste stellaire zwarte gat van de Melkweg
Een Europees team van astronomen heeft het grootste stellaire zwarte gat van de Melkweg ontdekt. Het is ruim dertig keer zo zwaar als de onze zon en bevindt zich in het sterrenbeeld Arend op zo'n tweeduizend lichtjaar van de aarde. De sterrenkundigen ontdekten het zwarte gat bij toeval toen ze de vierde…