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 20 of 98 for “"Overgrowth"”.
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CAFM Studies of Epitaxial Lateral Overgrowth GaN Films
… in this study included: epitaxial lateral overgrowth (ELO) and nano-ELO using a Si3N4 film. Both techniques decrease defects such as threading dislocations by controlling the nucleation and growth behavior of the GaN films. The EL0 technique uses a patterned dielectric film to laterally …
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Small intestinal bacterial overgrowth in acute and persistent infantile diarrhoea
INTRODUCTION: Small intestinal bacterial overgrowth refers to the proliferation of abnormal numbers and types of microorganisms in the lumen of the proximal bowel. Bacterial overgrowth has been implicated as a possible factor in prolonging some episodes of infantile gastroenteritis. This thesis …
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The effects of Didemnum vexillum overgrowth on Mytilus edulis biology and ecology
… consumption experiments examined the effects of overgrowth of the ascidian on predation by Carcinus maenas. Finally, mussel primary settlement was measured from summer 2008 through summer 2009 and compared to historical data. This settlement was also correlated with the abundance of neighboring …
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The Use of Synchrotron Radiation to study Overgrowth Phenomena in InAs/GaAs Nanostructures
This work focuses on the investigation of overgrowth phenomena in InAs/GaAs nanostructures using synchrotron radiation. Surface-sensitive grazing incidence small angle x-ray scattering (GISAXS) and grazing incidence diffraction (GID) are applied to study shape, strain, and interdiffusion in …
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Altered microrna expression profiles in bovine fetuses with an assisted reproduction-induced congenital overgrowth syndrome
… merit. The use of ART can induce congenital overgrowth conditions in humans and ruminants, namely Beckwith-Wiedemann syndrome (BWS) and large offspring syndrome (LOS), respectively. Shared phenotypes and epigenotypes have been found between BWS and LOS. A previous study in our laboratory …
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Large offspring syndrome, a bovine model for the human loss-of-imprinting overgrowth syndrome Beckwith-Wiedemann
… BWS. As in humans, ART can also induce a similar overgrowth syndrome in ruminants which is referred to as large offspring syndrome (LOS). The main goal of our study is to determine if LOS shows similar loss-of-imprinting at loci known to be misregulated in BWS. To test this, Bos taurus indicus × …
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ANALYZING THE FUNCTIONS OF PREFOLDIN COMPLEX IN NEUROBLAST HOMEOSTASIS OF DROSOPHILA MELANOGASTER
… of neuroblast polarity, leading to neuroblast overgrowth in Drosophila larval brains. Co-depletion of Prefoldin and Partner of Inscuteable (Pins) leads to the formation of gigantic brains with dramatic neuroblast overgrowth, due to the severe asymmetric division defects of both neuroblasts and …
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Microencapsulated human islets as a therapy for type 1 diabetes
… rats resulted in a dense pericapsular fibrotic overgrowth. Coating heparin on the microcapsules reduced the fibrotic overgrowth in the allo- but not the xeno- graft model. The absence of dense pericapsular fibrotic overgrowth in the allografted humanized mouse suggests that accelerated efforts …
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A review of the incidence and management of complications following malignant oesophageal stenting
… volume reflux, bleeding, migration, tumour overgrowth and ingrowth. Methods This retrospective audit of palliative oesophageal stenting over a three-year period (March 2018 - March 2021), with review of technical and clinical outcomes, aimed to determine local incidence and management of …
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Establishment of a phenotypical model of adverse outcomes associated with assisted reproductive technologies
… syndrome (BWS) is a loss-of-imprinting pediatric overgrowth syndrome. BWS is speculated to occur primarily as the result of the misregulation of imprinted genes associated with two clusters on chromosome 11p15.5, namely the KvDMR1 and H19/IGF2. There is a similar overgrowth phenotype that is …
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The Box Ankle and Ocmulgee shear zones of central Georgia: a study of geochemical response to Southern Appalachian deformation events
… versus U gain models, dissolution processes, and overgrowth binary mixing models from within selected mylonitized bulk rock chemistries. In the Ocmulgee fault, zircon overgrowth associated with deformation dominates U/Pb age discordancy. Isotopic re-equilibration of Sr Isotopes did not occur on a …
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Nanolithographically defined semiconductor quantum dots
… a top-down nanosphere lithography, dry-etch and overgrowth fabrication process. Devices are characterized by a current density-voltage (JV) test, electroluminescence (EL) and photoluminescence (PL) spectroscopy. The quantum confi nement is simulated by COMSOL.
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Germanium on silicon heteroepitaxy for high efficiency photovoltaic devices
… To use these films for large-area applications, overgrowth and coalescence of patterned Ge films are then evaluated in different pattern designs to determine the structures that optimize coalescence in terms of throughput as well as simultaneously avoid generation of additional defects as a …
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The development of components for ultrafast all-optical communication networks
… within the device structure (hence requiring an overgrowth step), is used to select the specific operating wavelength of the laser. As the WDM wavelength spacing continues to decrease, the increasing demands placed on the fabrication of the DFB lasers bring the fabrication issues to the …
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Molecular Regulation of Maternal Hepatic Adaptations to Pregnancy
… change; the placenta exhibited striking overgrowth with increased ALP production; and the cecal microbiome showed alterations in the relative abundance of several bacterial subpopulations. Moreover, litters born from maternal hepatic Ascl1 null mutated dam experienced abnormal postnatal …
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Biogenesis of Membrane-Bound and Secreted Immunoglobulins
… as normal products of plasma cells in clonal overgrowth (Kunkel, 1966) has provided both a homogeneous source for study and a paradigm. The structural characteristics of Igs which form the basis of specificity can now be, literally, seen in three dimensions; it is likely that all other …
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ΕΠΙΔΡΑΣΗ ΤΟΥ ΚΑΤΑΓΜΑΤΟΣ ΤΟΥ ΜΗΡΙΑΙΟΥ ΟΣΤΟΥ ΣΤΗΝ ΚΑΤΑ ΜΗΚΟΣ ΑΝΑΠΤΥΞΗ ΤΟΥ ΟΣΤΟΥ ΑΥΤΟΥ ΚΑΙ ΤΗΣ ΣΥΣΤΟΙΧΗΣ ΚΝΗΜΗΣ ΣΤΟ ΣΚΥΛΟ
… WITH COMPLETEOR INCOMPLETE FRACTURE SHOWED OVERGROWTH OF THE LEFT FEMUR AND THE IPSILATERAL TIBIA. ON THE CONTRARY, IN THE PUPIES WITH PERIOSTEUM ELEVATION THIS WAS NOT OBSERVED IN EPIPHYSEAL PLATE OF THE LOWER FRACTURED FEMUR IN PUPIES WITH COMPLETE AND INCOMPLETE FRACTURE WAS THICKER IN …
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Fully Covered,Retrievable Self-Expanding Metal Stent(Niti-S) in Palliation of Malignant Esophageal Obstruction
… with tumor ingrowth (2/100,2%), tumor overgrowth(7/100,7%), stent migration(6/100,6%), and food impaction(4/100,4%). Among other complications, early(≤7days) complications were chest pain (12/100, 12%), regurgitation (2/100 2%), tracheal compression (1/100, 1%) and late(>7days) ones …
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Reduced Defect Density Nalgan Template Layer for Improved Output Deep-UV LED
… quality nAlGaN layers compared to Pulsed Lateral Overgrowth AlN or AlN grown on Patterned Sapphire Substrate. A Rough/Smooth style superlattice with a high number of periods yields the best crystal quality and lowest strain nAlGaN layer. By optimizing the temperature of the nAlGaN layer, and using …
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