846 zoekresultaten voor “steen problems” in de Publieke website
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Two-Prover Bit-Commitments: Classical, Quantum and Non-Signaling
This thesis considers multi-prover commitment schemes whose security is based on restrictions on the communication between the provers.
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Structure-reactivity relationships in glycosylation chemistry
In a typical glycosylation reaction, a donor is activated to form a (variety of) electrophilic species which can react with a nucleophilic acceptor, following a reaction mechanism having both SN1 and SN2 character.
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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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Quantitative uncertainty in LCI
Overall dispersion in LCA as result of inherent uncertainties, spread and unrepresentativeness.
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Lights in a sea of darkness: constraining the nature and properties of dark matter using the stellar kinematics in the centres of ultra-faint
Dark matter is one of the biggest mysteries of the Universe. Its properties cannot be explained with the known laws of physics and elementary particles.
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Invariant manifolds and applications for functional differential equations of mixed type
Promotor: S.M. Verduyn Lunel
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Pattern mining for label ranking
Promotor: J.N. Kok, Co-promotor: C.M. Soares, A.J. Knobbe
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Improved hard real-time scheduling and transformations for embedded Streaming Applications
This thesis addresses the problem of designing performance and energy efficient embedded streaming systems, that is, systems which process a stream of input data coming from the environment and generate a stream of output data going into the environment.
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Groups and fields in arithmetic
Promotor: Prof.dr. H.W. Lenstra
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Small changes for long term impact: optimization of structure kinetic properties: a case of CCR2 antagonists
Promotor: Prof.dr. A. P. IJzerman, Co-Promotor: L.H. Heitman
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Het bestrijden van pesten door het versterken van zelf-bekrachtiging
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Inverse Jacobian and related topics for certain superelliptic curves
To an algebraic curve C over the complex numbers one can associate a non-negative integer g, the genus, as a measure of its complexity.
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Tangent fermions: massless fermions on a lattice
In some condensed matter systems, such as the surface of a 3D topological insulator, the electrons are effectively massless and we must necessarily use the massless Dirac equation to describe them.
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Estimation and Optimization of the Performance of Polyhedral Process Networks
Promotor: Prof.dr.ir. E. Deprettere
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From pixels to patterns: AI-driven image analysis in multiple domains
This thesis investigates the application of deep learning techniques in image analysis across various domains, focusing on four main themes: feature extraction, classification, segmentation, and integration, demonstrating the transformative potential of these technologies.
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ALL-IN meta-analysis
Science is typically a patchwork of research contributions without much coordination. Especially in clinical trials, the follow-up studies that we do fail to be the most promising.
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Quantum local asymptotic normality and other questions of quantum statistics
Promotor: R. Gill, Co-promotor: P. Massart
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Matchmaking for open innovation: perspectives on multi-sided markets
Promotores: Prof.dr. B.R. Katzy, Prof.dr. K. Sailer (Munich University)
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Onderwijs
De programmagroep Leer- en Gedragsproblemen in het Onderwijs is verantwoordelijk voor onderwijs op het gebied van leerproblemen binnen de bachelor- en masteropleidingen van het Instituut Pedagogische Wetenschappen.
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The Agta of the Northern Sierra Madre. Livelihood strategies and resilience among Philippine hunter-gatherers
Promotores: G. Persoon, R. Schefold
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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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Impact of plant hormones on growth and development of actinobacteria
Plants are colonized by an astounding number of microorganisms that can provide different life-support functions, including nutrient acquisition and protection against (a)biotic stresses like drought or pathogen attack.
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Does it still hurt?
The last decades it is increasingly recognized that acute as well as chronic postoperative pain is an important problem. Treatment and prevention of postoperative pain is a challenge, especially in special patient populations where there is only limited guidance on how to optimally use opioids.
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Governance of Innovation Project Management: Necessary and Neglected
Promotor: Prof.dr. B.R. Katzy, Prof.dr. J. de Vries
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Novel detectors and algorithms for electron nano-crystallography
Promotor: Prof.dr. J.P. Abrahams, Prof.dr. M. van Heel
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Selectivity and competition between the anodic evolution of oxygen and chlorine
Sustainable energy from wind and solar is most readily available near the sea.
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Faculteit der Rechtsgeleerdheid
Het onderzoek binnen de Faculteit der Rechtsgeleerdheid beperkt zich niet tot een enkel speerpunt, maar richt zich op de volle breedte van het recht. Door actuele onderwerpen (zoals kinderrechten, politiek, sport, rampen of criminaliteit) te behandelen en te koppelen aan de wetenschappelijke theorie,…
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creatIef, Creatiever, creaTiefst? Onderzoek naar het belang en de werking van creativiteitstraining bij Bachelor ICT-studenten
This dissertation presents the results of the importance of creativity for ICT-students of Dutch universities of applied sciences (in Dutch: hogescholen), and the functioning of training courses that aim to promote creative abilities is highlighted.
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Automated machine learning for dynamic energy management using time-series data
Time-series forecasting through modelling sequences of temporally dependent observations has many industrial and scientific applications. While machine learning models have been widely used to create time-series forecasting models, creating efficient and performant time-series forecasting models is…
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Verraderlijk asielbeleid: gelaagde verantwoordelijkheid voor het Nederlandse asielbeleid
In deze publicatie analyseert Kees Nagtegaal in hoofdstuk 9 het Nederlandse asielbeleid en belicht hij de gelaagde verantwoordelijkheid die dit complexe beleidsveld kenmerkt.
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Taxonomy, systematics, and biogeography of Ficus subsection Urostigma (Moraceae)
Promotor: Prof.dr. P.C. van Welzen
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Biomimetic models of [NiFe] hydrogenase for electrocatalytic hydrogen evolution
The growing demand of energy indicates that global energy resources in the form of fossil fuels will not be sufficient in the future. In order to solve potential future energy problems development of a sustainable hydrogen economy is highly desirable.
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The puzzle of protoplanetary disk masses
My work focuses on a class of astronomical objects called protoplanetary disks.
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Faster X-ray Computed Tomography in Real-World Dynamic Applications
This dissertation investigates how the efficiency of Computed Tomography (CT) can be improved for dynamic scientific and industrial applications.
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Engagement of citizens and public professionals in the co-production of public services
The idea of citizens and public professionals collaborating to provide public services has widely spread in several countries around the globe. Co-production is often presented as the go-to solution for challenges like a legitimacy crisis of both the government and the market, and financial concerns.…
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Join-in courses 2024-2025
Join-in courses zijn MA-cursussen over middeleeuwse onderwerpen gegeven binnen vastgestelde MA-programma's van de zes deelnemende universiteiten van de Onderzoekschool. Op aanvraag zijn deze vakken toegankelijk voor studenten van andere (Nederlandse) universiteiten. De cursusbelasting en het aantal…
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Solving the Gravitational N-body Problem with Machine Learning
Promotie
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Robyn CreminFaculteit Governance and Global Affairs
r.m.cremin@fgga.leidenuniv.nl | 070 8009506
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Jasper DekkerFaculteit der Geesteswetenschappen
j.j.dekker@hum.leidenuniv.nl | 071 5272516
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Going global to local: achieving agri-food sustainability from a spatially explicit input-output analysis perspective
The global agri-food system plays a critical role in food security and environmental issues.
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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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On hard real-time scheduling of cyclo-static dataflow and its application in system-level design
Promoter: Ed F. Deprettere, Co-promoter: Todor P. Stefanov
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Can tigers survive in human-dominated landscapes?
S.S. Kolipaka’s thesis questions and investigates the survival prospects of reintroduced tigers and their offspring’s in the human dominated landscape of Panna tiger reserve in India.
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Discovery of novel Antibiotics from Actinomycetes by Integrated Metabolomics & Genomics Approaches
Promotor: G.P. van Wezel, Co-promotor: Y.H. Choi
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CML-IA Characterisation Factors
CML-IA is a database that contains characterisation factors for life cycle impact assessment (LCIA) and is easily read by the CMLCA software program.
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Periodic pulse solutions to slowly nonlinear reaction-diffusion systems
Promotor: A. Doelman, Co-promotor: J.D.M. Rademacher
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Leiden University College The Hague
Leiden University College The Hague (LUC) biedt een 3-jarige bacheloropleiding aan waarin je je focust op Global Challenges; grote uitdagingen waar de mensheid mee te maken heeft: Vrede & Rechtvaardigheid, Diversiteit, Duurzaamheid en Welvaart. Je hebt ruimte om de opleiding zo in te richten als je…
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Trustworthy anomaly detection for smart manufacturing
This dissertation explores how we can make anomaly detection—identifying unusual or faulty behavior in complex systems—more trustworthy and effective, with a focus on smart manufacturing.
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CONSENT
CONSENT (Consumer sentiment regarding privacy on user generated content services in the digital economy) is a research project funded by the European Union under the 7th Framework Programme. The question central to this research is whether recent changes to consumer and commercial practices developed…
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Multi-objective Evolutionary Algorithms for Optimal Scheduling
Multi-criteria optimalisatie is een effectieve techniek voor het vinden van optimale oplossingen die een afweging bieden tussen verschillende, tegenstrijdige criteria. Het heeft zijn toepassing gevonden in de wereld om ons heen omdat bij het oplossen van praktische, re¨ele wereld problemen men gewoonlijk…