Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"radial migration"”.
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The Effects of Radial Migration on the Outskirts of Disc Galaxies
Since the discovery of radial migration a galaxy can no longer be considered to be a collection of annuli evolving in isolation. Previous works have considered the implications of migration on properties of disc galaxies, but most of these efforts concentrate on the Solar neighbourhood, where …
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Dividing the Preplate: Characterization of Neuronal Subpopulations in the Early Murine Cerebral Cortex
… zone and the lower subplate layer by the radial migration of projection neurons from the cortical ventricular zone. Cajal-Retzius and subplate neurons have important developmental functions in regulating radial migration and in pioneering corticofugal projections. The genetic mechanisms of …
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Computational study of hub corner stall in an axial compressor rotor
… of the corner stall. It failed to predict the radial migration of the associated loss core. However, the calculation did reveal details of the flow that affect comer stall. These included boundary layer transition and separation on the suction surface, hub and suction surface secondary flows, …
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The molecular mechanisms of diabetes mediated impaired wound healing and the development of therapeutic strategies.
… to the wounded tissue. Endothelial cell migration is central to angiogenesis, which is aided by hypoxia and attenuated by hyperglycaemia. However, the molecular mechanisms underlying the disruption to angiogenesis of diabetic wounds are not completely understood. The effect of hypoxia …
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Dense Collagen Materials and the Modulation of Fibrillogenesis for Tissue Engineering
… sheets support keratinocyte adhesion, radial migration and stratification from full-thickness mouse oesophageal explants, challenging rigid nylon culture inserts as more biomimetic substrates in vitro, while sodium-sulphate-enhanced sheets integrate well in vivo, exhibiting host-cell …
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The Brain Invaders: Widespread Neuronal Dispersion in Developing and Adult Mammalian Brain
<p>Cell migration is the principal determinant of the final brain cytoarchitecture. However, we have only limited knowledge about the migratory pathways and mechanisms utilized during brain development. In my thesis I present new and unexpected findings about neuronal migration in the developing …
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Understanding massive disk galaxy formation through resolved stellar populations
… often find strong flaring due to interactions or radial migration. Furthermore, we find breaks in the radial profiles of all three galaxies. The radii of these breaks are independent of age, and the break strength is decreasing with age in two of the galaxies (NGC4244 and NGC5023). This is …
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Spatial and temporal regulation of cerebral cortex development by the transcription factor pax6
… developing cortex requires precise generation, migration and differentiation of cortical neurons. Cortical projection neurons originate from progenitors of the embryonic dorsal telencephalon. The transcription factor Pax6 is expressed in apical progenitors (APs) throughout corticogenesis in a …
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Disentangling the chemodynamical history of the Milky Way disc with asteroseismology and spectroscopy
… the first time with high-resolution data, the radial metallicity gradient of the disc as a function of distance from the Galactic plane, demonstrating that the gradient flattens and even changes its sign for mid-plane distances greater than 1 kpc. Furthermore, we detect a gap between the high- …
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Abnormal cortical activity leads to misallocation of GABAergic interneurons in the mouse neonatal brain.
Aivojen kehityksen aikana GABAergiset hermosolut, joita kutsutaan myös interneuroneiksi, kulkeutuvat tangentiaalisesti aivokuoren eli korteksin ulkopuolelta subpalliumista aivokuorelle eli palliumiin. Aivokuorelle hajaantumisen jälkeen, interneuronit aloittavat radiaalisen migraation kohti …
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Terminalia ivorensis and human health: the impact of Terminalia ivorensis on biomarkers of cyto- and genotoxicity in human cells in vitro.
… by single cell gel electrophoresis, and cell migration using the radial migration assay. It was found that the chemical extraction procedure was consistent and robust for carrying out the study, as it yielded comparable and consistent phytochemicals from different batches of extractions. …
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Planetesimal and Protoplanet Dynamics in a Turbulent Protoplanetary Disk
… disk, planetary objects undergo orbital migration due to the gravitational torques exerted by their surrounding gas. It has been an outstanding issue that an earth-sized planet embedded in a gas-rich environment may rapidly migrate into its host star. In this dissertation, I study some of …
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Protoplanetary discs across the stellar mass range
… The second scenario involves the fact that a radial location of 0.6 au is close to the expected location of the H$_2$O snowline in the disc. As such, a combination of efficient dust growth, radial migration, and subsequent fragmentation within the snowline leads to an optically thick inner …
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Effects of Thermoacoustic Oscillations on Spray Combustion Dynamics with Implications for Lean Direct Injection Systems
… that under acoustic forcing the droplets migrate radially away from the spray centerline and show oscillatory excursions in their movement. Non-reacting flow experiments were also performed using Time-Resolved Digital Particle Image Velocimetry to characterize modulated sprays. Frequency response …
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Open cluster groups and complexes
… simulations on the dynamical processes, such as radial migration, disc heating, differential rotation, kinematic resonances, and spiral structure. In the past decade there were a few studies on open cluster pairs (de La Fuente Marcos & de La Fuente Marcos 2009a,b,c) and on open cluster groups and …
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Die Essex-Lopresti-Verletzung: Klinische Studie und Literaturauswertung
Einleitung: Die seltene, nach Essex-Lopresti benannte, Unterarmverletzung ist durch eine Radiusköpfchenfraktur in Verbindung mit einer Verletzung der interossären Membran (IOM) sowie des distalen Radioulnar-Gelenkes charakterisiert. Zugrunde liegt meist ein Hochrasanztrauma. Sie wird initial häufig …