1,896 zoekresultaten voor “works in security policy and practice” in de Publieke website
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Strategies for braiding and ground state preparation in digital quantum hardware
With the help of quantum mechanics, digital quantum hardware may be able to tackle some of the problems that are too difficult for ordinary computers. But despite these expectations and the ongoing effort of the research community, reliable quantum computers are not yet realized in a lab setting.
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Custom-made online language courses
Make use of this time to improve your language skills by signing up for custom-made online language classes.
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Systematic, phylogenetic and pollination studies of Specklinia (Orchidaceae)
Promotor: Prof.dr. E.F. Smets. Co-promotores: B. Gravendeel, F. Pupulin
- Aflevering 21: Ezra Pound
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Unraveling the auxin mechanism in 2,4-D induced somatic embryogenesis in Arabidopsis thaliana
Promotor: P. J. J. Hooykaas, Co-promotor: R. Offringa
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Computational modeling of cellular dynamics in tumor cell migration
Epithelial-mesenchymal plasticity (EMP) and tumor cell migration play an important role in cancer progression, and an improved understanding of the mechanisms underlying these concepts is essential for developing new targeted approaches.
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Data Driven Modeling & Optimization of Industrial Processes
Industrial manufacturing processes, such as the production of steel or the stamping of car body parts, are complex semi-batch processes with many process steps, machine parameters and quality indicators.
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Estimation and Optimization of the Performance of Polyhedral Process Networks
Promotor: Prof.dr.ir. E. Deprettere
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The symmetry of crystals and the topology of electrons
Promotor: J. Zaanen, Co-Promotor: V. Juricic
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Development of highly accurate density functionals for H2 dissociation on transition metals
Metals surfaces form a group of effective catalysts for the reaction of small molecules such as hydrogen (H2).
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Atomic Insights into Hydrodesulfurization
Hydrodesulfurization (HDS) is an ubiquitous part of oil refining that ensures that fuels are cleaned of impurities and environment release of pollutants such as SOx and NOx gasses are minimized.
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Morphogenesis and heterogeneity in liquid-grown streptomyces cultures
The filamentous bacteria Streptomyces are widespread inhabitants of terrestrial soils.
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Academy of Creative and Performing Arts
De Academy of Creative and Performing Arts is een samenwerkingsverband tussen de Leidse universiteit en de Hogeschool der Kunsten Den Haag'. (Deeltijd)studenten van de Leidse universiteit kunnen hier theoretisch en praktisch kunstvakonderwijs volgen, waarvan de studiepunten meetellen voor hun bachelor-…
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Self-assembly of flexible and rigid structures: from colloidal molecules to lattices
Self-assembly offers a promising route to create complex structures and materials using simple building blocks. Through, colloidal self-assembly, we can understand the governing principles of the self-assembly process and unlock its potential in diverse applications in materials science, photonics and…
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Regulation of autophagy-related mechanisms during bacterial infection
Autophagy is a fundamental degradative process, maintaining cellular homeostasis and functions in host defense against intracellular pathogens, including mycobacteria and Salmonella.
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Developmental effects of polystyrene nanoparticles in the chicken embryo
There is concern about the threat that nanoplastics (NPs) may pose to both wildlife and humans. This thesis explores the mechanisms of toxicity of polystyrene nanoparticles (PS-NPs) in chicken embryo.
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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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The flux and flow of data: connecting large datasets with machine learning in a drug discovery envirionment
This thesis focuses on data found in the field of computational drug discovery. New insight can be obtained by applying machine learning in various ways and in a variety of domains. Two studies delved into the application of proteochemometrics (PCM), a machine learning technique that can be used to…
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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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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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Workshop The Art of Journaling
Kunst en vrije tijd, Kunst en vrije tijd
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The developing infant gut microbiota: mathematical predictions of the effects of oligosaccharides
A complex community of microbes develops in the infant gut shortly after birth. We call this community the infant gut microbiota. The microbiota influences the health of the infant, which makes the composition and function of the infant gut microbiota an important topic to study.
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Bacterial glycomimetics: synthesis and applications
This work has described synthetic strategies towards well-defined structures resembling capsular polysaccharide (CPS) fragments, CPS mimics, teichoic acid (TA) fragments as well as a third-generation ring-closing tandem metathesis (RCM) linker to better exploit the potential of automated synthesis.
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Chitin in the fungal cell wall: towards valorization of spent biomass of Aspergillus niger
Aspergillus niger is an important industrial producer of organic acids and enzymes producing large amounts of spent fungal biomass.
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Resolving gas-phase metallicity in galaxies
Galaxies are environments where gas coalesces, cools, and is converted into stars. However, it remains unclear the exact mechanisms through which galaxies acquire, redistribute and lose their gas.
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Trading Responsibility: navigating national burdens in a globalized world
International trade has played a major role in defining the modern global economy. Trade, however, entangles the environmental pressures of economic sectors, giving the illusion of environmental improvements, while the opposite may be occurring.
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Click-to-release for immune cell activation
This work describes the use of click-to-release chemistry to get spatiotemporal control over immunocytokine activity. Until now, immunocytokines (cytokines coupled to a tumor-targeting-moiety) remained active throughout the body, being able to bind their respective receptors, causing mild to severe…
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Fundamental research on the voltammetry of polycrystalline gold
Voltammetry plays a crucial role in modern scientific research by offering valuable insights into the electrochemical properties of materials, with wide-ranging applications in fields such as materials science, energy storage, corrosion studies, and sensor development.
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Thiosugars: reactivity, methodology and applications
Carbohydrates, alongside proteins and nucleic acids, constitute a crucial and versatile family of biomolecules present in all life forms. They manifest as monosaccharides, oligosaccharides, and polysaccharides, covalently bonded to proteins and fats. Carbohydrates are integral to plant and arthropod…
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Substrate adaptability of β-lactamase
The research aims to explore the evolutionary adaptability of enzymes and the impact of temperature on protein evolution pathways, using M. tuberculosis β-lactamase BlaC as the object of study. Enzymes inherently embody a delicate balance between activity and stability, and the acquisition of new enzymatic…
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Pushing the characterization of exoplanet atmospheres down to temperate rocky planets in the era of JWST
One of the key discoveries in exoplanet research over the past decade is the abundance of small planets in our Milky Way. Despite their high numbers, our understanding of their atmospheres remains limited, and it is unknown if they possess atmospheres at all.
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Interactions of nutrients and pesticides and their effects on aquatic macrofauna
Can we distinguish the effects of pesticides from other abiotic and biotic factors that occur in the field? And how do these factors interact with pesticides?
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Onderwijs
De programmagroep Opvoeding en Ontwikkeling is verantwoordelijk voor onderwijs op zowel bachelor- als masterniveau, met speciale aandacht voor opvoeding en ontwikkeling.
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Kijken, luisteren, lezen en ontdekken
Een overzicht van blogs, video's, podcasts, boeken, artikelen en activiteiten waarmee u zich verder kunt verdiepen in het koloniale en slavernijverleden.
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Formative Assessments and Teacher Professional Learning
Hoe kan formatieve assessment worden ingezet om het leren van docenten te bevorderen? Dit boek bevat diverse onderzoeken naar professionaliseringsaanpakken en cursussen waarin formatieve assessment wordt aangewend met het oog op het leren van docenten.
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Linking soil microbial community dynamics to N2O emission after bioenergy residue amendments
Vinasse is a major by-product generated by the sugarcane biofuel industry. It is a source of microbes, nutrients and organic matter and often it is recycled as fertilizer.
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Taalklavertje vier
Het Taalklavertje vier is een didactische handreiking voor leerkrachten Engels op school, pabo-opleiders Engels en pabo-studenten, met videovoorbeelden op dvd.
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Waarom Universiteit Leiden
Studenten bij International Business Law (IBL) krijgen bij de Universiteit Leiden les van docenten met internationale ervaring, hierdoor verbreedt je als student je horizon. Ook krijg je deels Engelstalig onderwijs en kom je in contact met zowel Nederlandse als buitenlandse studenten.
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Technologie in onderwijs
Laat je op deze pagina inspireren door best practices van onderwijsvernieuwende voorbeelden die in ons onderwijs invulling geven aan de ambitie Technologie in onderwijs.
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Instituut voor Metajuridica
De rechtswetenschap is een verzamelnaam voor de 'juridica' en 'metajuridica'.
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Centre for Public Values & Ethics
Het Centre for Public Values & Ethics (CPVE) is een interdisciplinair academisch expertisecentrum met als doel het verrichten en verspreiden van wetenschappelijk onderzoek naar waardengeladen vraagstukken in de publieke sector. In het bijzonder wordt gekeken naar de ethiek van de publieke ambtsvervulling…
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Resolving a bioindicator diatom species complex using genomic approaches for freshwater biomonitoring
This thesis pioneers diatom molecular identification and quantification through genome-scale methods, with four key aims: (i) reviewing DNA/RNA sequencing methods in aquatic biomonitoring to highlight their strengths and limitations;
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Tijdens lockdown meer slachtoffers van kindermishandeling
Het aantal slachtoffers van kindermishandeling is tijdens de eerste lockdown hoger geschat ten opzichte van een periode zonder lockdown. Dit komt met name door een toename in het aantal slachtoffers van emotionele verwaarlozing, waaronder verwaarlozing van het onderwijs en het getuige zijn van huiselijk…
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Hoe worden we een inclusievere universiteit?
Inspiratie van buiten en best practices van binnen de universiteit. Dat waren de belangrijkste ingrediënten van het symposium over inclusiviteit dat het Diversity Office van de Leidse universiteit op 22 november organiseerde.
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The Future of Work: Opportunities and challenges of digitalization, the platform economy and flexibilization of European labour markets
Congres/symposium
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Onze Medewerkers
Het Leiden Leadership Centre is een interdisciplinaire netwerkorganisatie. Als onderdeel van het Instituut Bestuurskunde van de Universiteit Leiden neemt het LLC een verbindende rol op zich door samen te werken met studenten, professionals uit de praktijk en wetenschappers vanuit verschillende disci…
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20th century changes in the Dutch flora
Description of 20th century changes in the Dutch flora: Description and interpretation (1999 - 2005)
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Sizing up protoplanetary disks
This thesis focuses on protoplanetary disks: flattened structures of gas and dust around young stars in which planets are expected to form and grow.
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'Vrede in regio afhankelijk van Iran en Saoedi-Arabië'
De relatie tussen Iran en Saoedi-Arabië is slechter dan ooit. Zonder toenadering tussen beide landen is de rust in het Midden-Oosten moeilijk te herstellen, denkt Irandeskundige Maaike Warnaar.
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Nieuwe serie research seminars over onderzoek bij de Faculteit Governance and Global Affairs
De Faculteit Governance and Global Affairs introduceert met genoegen een nieuwe serie research seminars. Het FGGA Research Seminar zal een forum zijn voor de presentatie van en discussie over actueel hooggekwalificeerd onderzoek naar onderwerpen waar de faculteit zich mee bezig houdt.