603 zoekresultaten voor “urban natural” in de Publieke website
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Wim Willems krijgt titel ‘Ere Polonus’
Historicus en hoogleraar Wim Willems is bekroond met de titel Ere Polonus voor zijn inzet om het beeld van Polen in Nederland te nuanceren. De verkiezing, een initiatief van Stichting Polonus, heeft als doel de positieve invloed van de Poolse gemeenschap in Nederland te belichten.
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'Hier woonden wij. Hoe een stad zijn Joodse verleden herontdekt'
Vóór de oorlog maakten Joden deel uit van het alledaagse leven in tal van Nederlandse steden en dorpen. Anders, maar wel gelijk. Door de Shoah lijkt het alsof al die duizenden families die hier woonden, er nooit helemaal bij hoorden. Niets is minder waar. Zij drukten een eigenzinnig stempel op vrijwel…
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Arthur Rama.f.j.ram@biology.leidenuniv.nl | 071 5274914
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Het ontrafelen van de vroege taalkundige geschiedenis van Oost-Afrika (LHEAf)
Dit project onderzoekt de rijke taalkundige geschiedenis van de cruciale taalgroepen in Oost-Afrika en omvat een zoektocht naar woorden die wijzen op eerder verloren talen. Deze resultaten, gecombineerd met recent archeologisch en genetisch onderzoek, zullen bijdragen aan een nieuw begrip van de vroege…
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Projecten
Projecten van de afdeling Environmental Biology
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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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Signalling pathways that control development and antibiotic production in streptomyces
Bacteria are highly complex and diverse organisms that have adapted to survive in ecological niches ranging from the most extreme to the most heterogeneous environments.
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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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Basis reduction for layered lattices
Promotor: H.W. Lenstra
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Efficient tuning of automated machine learning pipelines
Automated Machine Learning (AutoML) is widely used to automatically build a suitable practical Machine Learning (ML) model for an arbitrary real-world problem, reducing the effort of practitioners in the ML development cycle for real-world applications. Optimization is a key part of a typical AutoML…
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Subproduct Systems and C*-algebras
This thesis studies operator-algebraic aspects of subproduct systems, a generalization of product systems of Hilbert spaces.
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Matter into context: population- and community-level impacts of nanomaterials in freshwater ecosystems
The application of nanomaterials in industrial processes and consumer products provides many societal benefits, but can also lead to the release of nanomaterials into the environment. The work in this dissertation aims to provide insights into the potential environmental impacts that may follow from…
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The parabolic Anderson model on Galton-Watson trees
The parabolic Anderson model (PAM), which is the Cauchy problem for the heat equation with random potential. The PAM is a mathematical model that describes how mass (i.e. matter or energy) flows in a medium in the presence of a field of sources and sinks.
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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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Sheltering 10 billion people in a warming and resource-scarce world: challenges and opportunities
Sheltering is an immediate human need and determines well-being andhealth.
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HyTROS
De ontwikkeling en implementatie van een schaalbare, veilige en geïntegreerde infrastructuur van waterstof te bevorderen ter ondersteuning van de energietransitie.
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Amoeboid cell migration and physicochemical properties of the extracellular environment
This dissertation aims to advance understanding of amoeboid single cell migration under the influence of changing physicochemical environmental properties. The particular focus is on the relatively unknown influence of differing physical properties in the extracellular environment, such as the migratory…
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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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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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Chemistry and Biotechnology for Sustainability
If mankind wants to survive into the 22nd century, we will need to change the way we live drastically. The human impact on our planet is everywhere, we are changing the atmosphere, the oceans and the land, leading to global warming, climate change, loss of biodiversity and pervasive pollution. There…
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SAILS Lunch Time Seminar: Tom Kouwenhoven
Lezing
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Onderwijs
Het uitgebreide bachelor- en masteronderwijs van het Leiden University Centre for Linguistics (LUCL) leidt studenten op tot volwaardige LLM engineers en analisten – mèt een taalkundige basis!
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Stefano Cucurachis.cucurachi@cml.leidenuniv.nl | 071 5274919
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SMALL Savannah : an information system for the integrated analysis of land use change in the Far North of Cameroon
Promotores: W.T. de Groot, M. Tchuenté, Co-promotor: J.P. Cheylan
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Ester van der Voetvoet@cml.leidenuniv.nl | 071 5272727
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Een schat aan grondstoffen in de stad, maar circulaire economie nog een te mooi vooruitzicht
Geen afval meer produceren en alles hergebruiken. In 2050 moet Nederland een circulaire economie hebben. Uit de nieuwe Integrale Circulaire Economie Rapportage van het Planbureau voor de Leefomgeving blijkt echter dat er nog een lange weg te gaan is. Het Centrum voor Milieuwetenschappen Leiden bracht…
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Bescherming tegen rampen: Interdisciplinaire perspectieven op het begrip bescherming
Wat betekent het om te beschermen tegen rampen in de context van klimaatverandering en andere cascaderende milieurampen?
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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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Samen voor ons eigen
Een touwtje uit de deur is het symbool voor de gezellige Nederlandse volksbuurt van vroeger. Dat gold ook voor de Schilderswijk in Den Haag. Maar de wijk heeft tegelijk al bijna een eeuw de reputatie van een beruchte achterbuurt. Mythe of werkelijkheid? En wat klopt er van het idee dat het karakter…
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Afkijken bij de natuur
Een neuraal netwerk imiteert de werking van onze hersenen. Evolutionaire algoritmes gebruiken het principe van natuurlijke selectie om een complex probleem op te lossen. Deze vormen van natural computing worden ingezet om de diagnose van de ziekte van Parkinson accurater te maken, maar ook om bijvoorbeeld…
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Catrin Böcherc.bocher@cml.leidenuniv.nl | 071 5272727
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Spectral Analysis of Inhomogeneous Networks
This thesis explores Breaking of Ensemble Equivalence (BEE) in random graph models by examining the spectral properties of adjacency matrices. The goal is to identify spectral characteristics that differentiate random graph ensembles, enhancing the understanding of complex network structures and beh…
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Algorithm selection and configuration for Noisy Intermediate Scale Quantum methods for industrial applications
Quantum hardware comes with a different computing paradigm and new ways to tackle applications. Much effort has to be put into understanding how to leverage this technology to give real-world advantages in areas of interest for industries such as combinatorial optimization or machine learning.
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Identification and characterization of developmental genes in streptomyces
Promotor: Prof.dr. G.P. van Wezel
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From Benchmarking Optimization Heuristics to Dynamic Algorithm Configuration
For optimization problems, it is often unclear how to choose the most appropriate optimization algorithm. As such, rigorous benchmarking practices are critical to ensure we can gain as much insight into the strengths and weaknesses of these types of algorithms.
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Robust rules for prediction and description.
In this work, we attempt to answer the question:
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The noisy underwater world: the effect of sound on behaviour of captive zebrafish
Promotor: Carel J. ten Cate, Co-Promotor: Hans W. Slabbekoorn
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Image analysis for gene expression based phenotype characterization in yeast cells
Promotores: T.H.W. Bäck, A. Plaat, Co-promotor: F.J. Verbeek
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Lipid model membrane systems as a tool for unraveling the underlying factors for skin barrier dysfunction
Barrier function is the natural role of the skin. The lipid matrix present in the outermost layer of the skin, the stratum corneum is important for this function.
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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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Ginsenosides as selective glucocorticoid drugs: agonists, antagonists, and prodrugs
Glucocorticoids are potent anti-inflammatory drugs widely used clinically to treat various inflammatory and immune conditions. However, two main clinical problems limit their use. GCs trigger severe side effects and they induce acquired glucocorticoid resistance, especially during chronic systemic treatment…
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Mast cells as immune regulators in atherosclerosis
Cardiovascular syndromes are the major cause of death in Western societies.
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Plant occurrence in space and time: the importance of land use, habitat structure, and pollination mode
Plant diversity is essential for us and our planet as it sustains the stability of our ecosystems, provides vital materials and food to us and supports many ecosystem services.
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Above- and belowground interactions in Jacobaea vulgaris: zooming in and zooming out from a plant-soil feedback perspective
In this thesis, I focused on studying the above- and belowground interactions of J. vulgaris from a plant-soil feedback (hereafter, PSF) perspective. I investigated the temporal variation of negative PSF and examined the effects of root-associated bacteria on plant performance and aboveground herbiv…
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Designing Ships using Constrained Multi-Objective Efficient Global Optimization
A modern ship design process is subject to a wide variety of constraints such as safety constraints, regulations, and physical constraints.
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Metabolomic characterization of plant exudates and their correlation with plant defense systems
Plant exudates appeared long time ago in the history line of life in the early Devonian. They are typical saps produced by specialized cells.
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Optimally weighted ensembles of surrogate models for sequential parameter optimization
It is a common technique in global optimization with expensive black-box functions to learn a surrogate-model of the response function from past evaluations and use it to decide on the location of future evaluations.
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Synthesis, structure and epitope mapping of well-defined Staphylococcus aureus capsular polysaccharides
This dissertation presents the synthesis and evaluation of antibody recognition for various capsular polysaccharide (CP) fragments of Staphylococcus aureus (S. aureus).
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Travelling waves on trees and square lattices
In this thesis we study bistable reaction-diffusion equations on lattice domains.
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Benchmarking Discrete Optimization Heuristics
This thesis involves three topics: benchmarking discrete optimization algorithms, empirical analyses of evolutionary computation, and automatic algorithm configuration.