606 zoekresultaten voor “plastic some” in de Publieke website
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Many objective optimization and complex network analysis
This thesis seeks to combine two different research topics; Multi-Objective Optimization and Complex Network Analysis.
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Applying data mining in telecommunications
This thesis applies data mining in commercial settings in the telecommunications industry.
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X-raying extragalactic gas: warm-hot gas in the EAGLE simulations
I have studied the hot, diffuse gas around and between galaxies. Specifically, I have used the EAGLE numerical simulations of galaxy formation to predict the properties of this gas, and I have used those properties to predict specific observables: soft X-ray absorption and emission lines.
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RAISE Onderzoek
Het doel van het RAISE Onderzoek is om te onderzoeken hoe veerkrachtige mensen omgaan met stress. We kijken specifiek naar hoe belangrijke biologische systemen, zoals de HPA-as en het immuunsysteem, samenwerken met de hersenen en de sociale omgeving om veerkrachtig functioneren na moeilijkheden in de…
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Design, synthesis and application of paramagnetic probes for protein structure studies
The main subject of this thesis is the design and synthesis of paramagnetic molecules for protein studies with NMR and EPR spectroscopy.
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Applications of AdS/CFT to strongly correlated matter: from numerics to experiments
What physics controls the properties of quantum matter, such as how electrons flow inside high-temperature superconductors? This question has captivated the physics community and industry for decades, in part due to the great technological potential such materials have, but also because they have resisted…
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Opening academisch jaar 2017-2018
De opening van het academisch jaar 2017-2018 vond plaats op maandag 4 september 2017 in de Pieterskerk.
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Unveiling dark structures with accurate weak lensing
Improvements of weak gravitational lensing shape measurements are presented and some used for data analysis.
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Lopende projecten
Huidige cliënten
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Plastic Detectives and Wildlife Guardians
Promotie
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Bin Your Butt
Nieuw op de campus: peukenstemmers. Heb jij ze al gespot? Drop hieronder jouw briljante, non-scientific vraag en wie weet wordt die de volgende butt-kicker!
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Je onderzoek eenvoudig uitleggen: dat is nog niet zo simpel
Je promotieonderzoek verdedigen, maar dan tegenover bijna 300 basisschoolleerlingen: voor die uitdaging stonden promovendi Jo-Anne Verschoor en Marinka de Willigen tijdens de VUURVLIEGEN-wedstrijd van het Centrum JongerenCommunicatie Chemie (C3). Na een spannende strijd bepaalden de kinderen uiteindelijk…
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Knowledge extraction in the quantum random-oracle model
The aim of this thesis is to present novel techniques for proving cryptographic schemes secure against quantum adversaries. Most results are within the context of an idealized model called the ‘quantum random-oracle model’.
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Topics in the arithmetic of del Pezzo and K3 surfaces
Promotores: P. Stevenhagen, L. van Geemen (Università degli studi di Milano), Co-Supervisor: Ronald M. van Luijk
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Spin-momentum locking in oxide interfaces and in Weyl semimetals
Electrons in a crystal lattice have properties that may differ from those of a free electron in vacuum.
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Inhibitor Selectivity: Profiling and Prediction
Less than 1 in 10 drug candidates that enter phase 1 clinical trials actually gets approved for human use.
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LAPP ondersteunt handhavingsverzoek bij de ILT
Deze week was de samenwerking tussen de Zwerfinator en Universiteit Leiden in het nieuws vanwege de loslatende etiketten op statiegeldflesjes. In het NOS journaal werd gerapporteerd dat de Zwerfinator een handhavingsverzoek bij de Inspectie heeft ingediend. Het Leiden Advocacy Project on Plastic…
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Projecten
Projecten van de afdeling Environmental Biology
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Suppen voor Sustainability
We gingen het water op! Op zaterdag 30 augustus 2025 gingen onze studenten samen met Plastic Soup Surfer Merijn Tinga de Leidse grachten op om te suppen én afval uit het water te vissen.
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Netwerk en projecten
Netwerk en projecten duurzaamheid verduurzaming green office en green team
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Citizen Science Lab
In het Citizen Science Lab ontwikkelen wetenschappers, burgers en maatschappelijke partijen innovatieve onderzoeksprojecten om gezamenlijk nieuwe wetenschappelijke kennis te vergaren. Hier vindt u meer informatie over het Citizen Science Lab, projecten waaraan u kunt deelnemen en hoe u projecten zelf…
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Decompositions in algebra
We show that Kirchhoff ’s law of conservation holds for non-commutative graph flows if and only if the graph is planar. We generalize the theory of (Euclidean) lattices to infinite dimension and consider the ring of algebraic integers as such a lattice.
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On topological properties of massless fermions in a magnetic field
Make more fluid: In condensed matter systems, electrons can acquire unusual properties from their interaction with the atomic lattice.
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Counting curves and their rational points
n this thesis we study curves. In the first half, we study moduli spaces of curves and Gromov-Witten invariants, certain kinds of curves counts. We employ logarithmic geometry for this.
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Afvalscheiding
Wat is beter voor afvalrecycling: een plastic, papieren of keramische beker? Een biobased of fossiele coating? Afval sorteren bij de bron of bij een recyclingbedrijf? Vraag het aan tien experts en je krijgt tien verschillende meningen. Over één ding zijn we het allemaal eens: niets doen is geen optie.…
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Onderzoek bij het Levend Lab
Wat doen bestrijdingsmiddelen, bemesting of plastic met de waterkwaliteit? En hoe beïnvloeden wind en regen de data? Dat en meer onderzoeken de Leidse milieuwetenschappers in de 32 sloten van het Levend Lab.
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De MSC Zoe-milieuramp: verloren containers in zee en het recht op milieu-informatie
Verloren lading op zee moet worden beschouwd als milieuvervuiling en informatie hierover moet openbaar worden gemaakt, maar dat gaat niet altijd goed.
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Steden van het Romeinse Nabije Oosten
Het belangrijkste doel van dit onderzoek is om de steden van het Romeinse Nabije Oosten in de keizertijd in kaart te brengen, met een focus op locatie, stadsgrootte en stedelijke kenmerken, om de vorm van het stedelijke systeem en de niveaus van integratie te bestuderen.
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The power of one qubit in quantum simulation algorithms
Quantum computing is an emerging technology, which holds the potential to simulate complex quantum systems beyond the reach of classical numerical methods.Despite recent formidable advancements in quantum hardware, constructing a quantum computer capable of performing useful calculations remains challenging.In…
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On Multifield Inflation, Adiabaticity and the Speed of Sound of the Curvature Perturbations
Promotor: A. Achúcarro, Co-Promotor: G.A. Palma
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Next generation bacitracin: reimagining a classic antibiotic
Given the accelerating appearance of antimicrobial resistance, there is an urgent need for more fundamental research into novel antibiotic strategies. The work in this thesis helps to address this global problem by developing new antibiotic compounds, inspired by the antibacterial mechanisms of the…
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Gas physics of simulated galaxy clusters
The largest structures in the Universe are clusters of galaxies. Each can contain hundreds to thousands of galaxies.
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Play by the rules? : coordination of EU sustainable development policies and the importance of the politico-legal context
There is an increasing amount of attention on EU and its Member States contributions to implementation of two landmark agreements: the Paris Climate Agreement and the UN Agenda 2030 with Sustainable Development Goals (SDGs). Absent from the current literature is an analysis of the political effect of…
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Logarithmic Hochschild homology and cohomology
In this thesis, we explore a Hochschild homology and cohomology-like notion for logarithmic schemes.
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Control of early plant development by light quality
This thesis describes how different colours of light affect various aspects of the growth and development of Arabidopsis and tomato plants.
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Design, synthesis, and evaluation of antigenic peptide conjugates containing Toll-like receptor agonists
This thesis describes the design, synthesis, and immunological evaluation of varying (neo)antigenic peptide conjugates containing either a TLR2 or a TLR7 agonist.
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Spectroscopy of two-field inflation
This thesis is about cosmological inflation and its relation to observations.
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Studying through the summer?
Leiden University offers a unique range of summer courses where you can broaden or deepen your knowledge or share your expertise with fellow students. The choice of academic courses is very diverse, ranging from Law, Big Data, Languages and Linguistics to Maths and Natural Sciences, Biology, Biomedical…
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Towards a greater understanding of the presence, fate and ecological effects of microplastics in the freshwater environment
This thesis combines field and laboratory studies to address some of the most pressing questions in the field of microplastic research.
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Kummer theory for commutative algebraic groups
This dissertation is a collection of four research articles devoted to the study of Kummer theory for commutative algebraic groups.
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Arakelov inequalities and semistable families of curves uniformized by the unit ball
The main object of study in this thesis is an Arakelov inequalitywhich bounds the degree of an invertible subsheaf of the direct image ofthe pluricanonical relative sheaf of a semistable family of curves.
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Measures and Matching for Number Systems
This thesis provides explicit expressions for the density functions of absolutely continuous invariant measures for general families of interval maps, that include random maps and infinite measure transformations, not necessarily number systems.
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Off the wall: characterisation and exploitation of a cell wall deficient life style in filamentous actinomycetes
Almost all bacteria are enveloped by a cell wall that provides cellular protection.
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Far from home: the science exploitation of the fastest Milky Way stars
The Sun and all the stars in the night sky reside in the Milky Way galaxy. In the at-rest reference frame of the Galaxy, typical stars travel with velocities of about 100-200 kilometres per second.
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Translational Symmetry Breaking in Holographic Strange Metals
In this thesis, we have used numerical approaches to study the effects of translational symmetry breaking on strange metallic systems as realised by the holographic duality.
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Photos final presentations 15 december 2025
Kunst en vrije tijd, Kunst en vrije tijd
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Post-quantum Security of Cryptographic Transformations in the Random Oracle Model
In cryptography, generic transformations are often used to strengthen simpler but weaker schemes, into more sophisticated and stronger ones.
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Esther KentinFaculteit der Rechtsgeleerdheid
e.kentin@law.leidenuniv.nl | 071 5275358
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Wederom geen wereldwijd plasticverdrag: ‘De vervuiling blijft ophopen’
Tijdens de VN-top in Genève konden vertegenwoordigers van meer dan 180 landen het niet eens worden over een wereldwijd plasticverdrag. Universitair docent Esther Kentin sprak erover met verschillende media: ‘De menselijke gezondheid staat op het spel.’
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Mensen
Dit is het team van LAPP: