2,460 zoekresultaten voor “this weeks discoveries” in de Publieke website
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SDG Report
The following report discusses a survey on the topic of the Sustainable Development Goals that was distributed among researchers at Leiden University in the month of November 2021.
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Principal algebraic actions of the discrete Heisenberg group
Promotor: Prof.dr. W.T.F. den Hollander
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The endocannabinoid system in zebrafish larvae
In this thesis, we have studied the potential of the zebrafish larval model in studying the ECS, as a complementary model to the existing rodent models.
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Giant barrel sponges in diverse habitats: a story about the metabolome
Marine sponges are important members of reef ecosystems, as they play ecological roles that are essential for the health of the reef.
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Cavity quantum electrodynamics with quantum dots in microcavities
Promotor: Prof.dr. D. Bouwmeester
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Neutral outflows in high-redshift dusty galaxies
Outflows are crucially important for the gas budget and evolution of luminous star-forming galaxies and AGNs, with observed mass outflow rates of the same order as the star formation rate. Greater star formation and black hole growth lead to more intense feedback and outflows, resulting in self-regulated…
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Glycosyl Cations in Glycosylation Reactions
This thesis describes the use of a combined approach of computational and experimental techniques to gain novel insights to understand the glycosylation reaction and its reactive intermediates.
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Discovery and development of inhibitors selective for human constitutive proteasome and immunoproteasome active sites
This thesis describes the design and development of subunit‐selective inhibitors of particular catalytically active subunits of human constitutive proteasomes and immunoproteasomes.
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The ins and outs of ligand binding to CCR2
Promotor: Prof.dr. A. P. IJzerman, Co-Promotor: L.H. Heitman
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Dual Complexes of Semistable Varieties
This thesis is comprised of three chapters covering the theme of studying semistable varieties by looking at their dual combinatorial objects.
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Fire and grazers in the West African savanna
Promotores: H.A. Udo de Haes, H.H.T. Prins, Co-promotor: H.H. de Iongh
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Error bounds for discrete tomography
Promotores: K.J. Batenburg, B. Koren
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Zipping into Fusion
Promotor: Prof.dr. J.G.E.M. Fraaije, Co-promotor: A. Kros
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The colours of the extreme universe
This thesis presents pioneering work on the panchromatic emission of some of the most luminous galaxies in the early Universe: star forming galaxies and active galactic nuclei.
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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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Periodic pulse solutions to slowly nonlinear reaction-diffusion systems
Promotor: A. Doelman, Co-promotor: J.D.M. Rademacher
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Stochastic and Deterministic Algorithms for Continuous Black-Box Optimization
Continuous optimization is never easy: the exact solution is always a luxury demand and the theory of it is not always analytical and elegant.
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Dynamical Gibbs-non-Gibbs transitions and Brownian percolation
Promotor: Prof.dr. W.Th.F. den Hollander, Co-promotor: R. Fernandez.
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Allosteric modulation and ligand binding kinetics at the Kv11.1 channel
Promotor: Prof.dr. A.P. IJzerman, Co-Promotor: L.H. Heitman
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Modelling the dynamics of the innovation process: a data-driven agent-based approach
Promotor: Prof.dr. B.R. Katzy
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Random walks and the contact process
Promotores: W. Th. F. den Hollander, M.O. Heydenreich
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Geometry and Topology in Active and Driven Systems
The key characteristic of active matter is the motion of an emergent collection (such as a flock of birds), which is driven by the consumption of energy by its active components (i.e. individual birds).
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Magnetic Resonance Force Microscopy and the Spin Bath
There are many interpretations of quantum mechanics, and ultimately experiments are needed to verify or falsify these interpretations.
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Fertility and fontanels: women’s knowledge of medicinal plants for reproductive health and childcare in western Africa
Promotor: E.F. Smets, Co-promotor: T.R. van Andel
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Advanced in vitro models for studying drug induced toxicity
Promotor: B.van de Water, Co-promotor: L.S.Price
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Synthetic Study on ADP-ribosylation
This Thesis focuses on the design and synthesis of ADP-ribosylated compounds that can be applied in biological studies.
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Towards understanding the toxicity of copper nanoparticles in aquatic ecosystems
Promotores: Prof.dr. W.J.G.M. Peijnenburg & Dr. M.G. Vijver
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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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A fixed point approach towards stability of delay differential equations with applications to neural networks
Promotor: S.M. Verduyn Lunel, Co-Promotor: O.W. van Gaans
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Interactions from lipid membrane deformations
Biological cells, the basic building blocks of all life forms, are surrounded by a lipid membrane. More than half of the membrane is occupied by membrane proteins, which can regulate the cell functionality through specific arrangements.
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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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Freezing conditions in warm disks: snowlines and their effect on the chemical structure of planet-forming disks
This thesis focusses on the temperature structure in protoplanetary disks. The relation between structures seen in the dust and gas-phase molecules is investigated.
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Into the Darkness: Forging a Stable Path Through the Gravitational Landscape
In this thesis we study the landscape of gravitational models which modify GR by introducing an additional scalar degree of freedom (d.o.f.) to source Cosmic Acceleration.
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High-contrast imaging polarimetry of exoplanets and circumstellar disks
Understanding the formation and evolution of planetary systems is one of the most fundamental challenges in astronomy. To directly image and study young exoplanets and the circumstellar disks they form from, dedicated high-contrast imaging instruments are built.
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Spectroscopic characterization of exoplanets: From LOUPE to SINFONI
Over the past years it has been discovered that the population of extra-solar planets is large and diverse.
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Topological decoding of biomolecular fold complexity
Biological polymers, including proteins and the genome, undergo folding processes crucial for their proper functioning. Even slight changes in the folding structure of these biopolymers can have significant implications, leading to the development of various pathological conditions, such as neurodegenerative…
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Time Domain Imaging of Transient and Variable Radio Sources
This thesis focuses on the study of transient and variable radio sources in the universe.
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The synthesis of chemical tools for studying sphingolipid metabolism
Sphingolipids are important membrane compounds with a variety of functions. In mammalian cells, different enzymes are involved in the metabolism of sphingolipids, but interruption of this metabolism process leads to different diseases.
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System-level design for efficient execution of CNNs at the edge
A convolutional neural network (CNN) is a biologically inspired algorithm, highly capable at processing images and videos.
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Synthesis of well-defined ADP-Ribosylated biomolecules
Promotor: G. A. van der Marel, Co-promotor: D. V. Filippov
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Merging galaxy clusters: probing magnetism and particle acceleration over cosmic time
In this thesis, I studied the origin and evolution of the non-thermal radiation in merging galaxy clusters.
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The astrochemical factory: A solid base for interstellar reactions
In this thesis chemical and physical processes in the ice mantles on interstellar dust grains are studied.
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Towards an ab-axis giant proximity effect using ionic liquid gating
In this Thesis, novel charge induction mechanisms of ionic liquids are treated, tested and experimented on complex oxides, in particular cuprates.
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Development of an in vitro vascular network using zebrafish embryonic cells
One of the major limitations in culturing complex tissues or organs is the lack of vascularization in the cultured tissue. Development of a functional capillary bed could overcome this problem.
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Dancing with the Stars
This thesis develops a method for direction dependent calibration of the ionosphere in radio interferometric data.
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Electroextraction approaches for preconcentration of metabolites
In this thesis, we developed new ways to use a technique called electroextraction (EE) to extract charged molecules from one liquid into another using an electric field.
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Activity-based proteomics of the endocannabinoid system
This thesis describes the use of an activity-based proteomics method to study the endocannabinoid system.
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Witnessing the Process of Bacterial Cell Death: Novel Antimicrobials and Their Mechanisms of Action
This thesis describes the antimicrobial discovery strategy developed in our group, the den Hertog Group at the Hubrecht Institute. It includes a cultivation-based screening approach for novel antimicrobial agents from the source of fungi, and a bacterial time-lapse imaging approach for antimicrobial…
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Classical and paramagnetic NMR spectroscopy applied to different protein systems
Promotor: Prof.dr. M. Ubbink
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Integrating Analytics with Relational Databases
The database research community has made tremendous strides in developing powerful database engines that allow for efficient analytical query processing.