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 102 for “"ERG"”.
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Evaluation of the visual pathway with ERG, mfERG and mfVEP in inherited eye disorders
… may have a normal appearance. The full-field ERG demonstrates an absence of the rod response but normal amplitudes for the cones. However, after prolonged dark adaptation the rods recover completely. MfERG can be used for objective documentation of the disturbed macular function. Patients with …
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Spectral Sensitivity of the Goldfish ERG and Optic Tectum Before and After Optic Nerve Damage
… procedure was used to obtain electroretinogram (ERG) and tectal responses to light onset and termination to various wavelengths of light. Spectral sensitivity functions were derived from both the ON- and OFF-components at both visual levels. By examining the spectral sensitivity functions of …
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A multidisciplinary approach to reservoir characterization of the coastal Entrada erg-margin gas play, Utah
World-class outcrops of an outermost erg-margin can be observed within the Middle Jurassic Entrada Sandstone near Capitol Reef National Park, Utah. These erg-margin deposits contain isolated reservoir quality sandstone bodies that transition into a muddy tidal flat facies. These high quality …
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Tmprss2-Erg Regulation Of Androgen Biosynthetic Enzyme Expression, Dht Synthesis, And Androgen Receptor Activation In Prostate Cancer
… enzyme gene expression in PCa. The TMPRSS2-ERG transcription factor has been shown to be present in primary PCa tumors as well as CRPC tumors. The hypothesis was investigated that TMPRSS2-ERG fusions regulate androgen biosynthetic enzyme (ABE) gene expression and the production of androgens, …
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The Karoo sand sea in changing climates: Early Jurassic interdune lakes and erg dynamics in southern Africa
… provide insights into palaeo-climatic drivers of erg dynamics through time. This thesis investigates the sedimentary geology of the southern extension of a vast ancient desert system that was active over Pangaea and formed part of one of the largest known sand seas in Earth's history. The Lower …
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Rutas de transducción de señales y procesos de fosforilización implicados en la regulación de canales erg por TRH
Los canales de K+ erg se expresan en distintos tipos celulares, habiéndoseles relacionado con el control del potencial de membrana basal, la excitabilidad celular, la secreción, la proliferación celular y la duración del potencial de acción cardíaco. En células adenohipofisarias la regulación de …
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Die implementering van die Lewensvaardigheid Kurrikulum- en Assesseringsbeleidsverklaring vir verstandelik erg gestremde leerders in skole vir leerders met spesiale onderwysbehoeftes
… Assesseringsbeleidsverklaring vir verstandelik erg gestremde leerders (Lewensvaardigheid KABV vir VEG leerders) het ontstaan na 'n hofuitspraak in die hofsaak Cape Forum for Intellectually Disabled versus Government of the Republic of South Africa (2011). In hierdie hofuitspraak is verklaar dat …
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Generation of the electroretinogram M-wave and PII components in the amphibian retina
The electroretinogram (ERG) is a field potential generated by the electrical activity of the retina in response to a flash of light. The ERG is measured in humans and is useful in the diagnosis of retinal pathologies. The investigations reported in this thesis were undertaken with the expectation …
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Modeling of phototransduction in vision systems
… improve the usefulness of the electroretinogram (ERG) in identifying the sites and mechanisms of adaptation, development and disease processes, a quantitative model was developed based on the biochemical reaction kinetics in the phototransduction cascade and experimental data. A set of …
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The use of Silent Substitution in measuring isolated cone- and rod- Human ERGs
… decade of its discovery, the Electroretinogram (ERG) still remains the objective tool that is conventionally used in assessment of retinal function in health and disease. Although there is ongoing research in developing ERG recording techniques, interpretation and clinical applications, there is …
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The use of silent substitution in measuring isolated cone- & rod- human electroretinograms. An electrophysiological study of human rod- and cone- photoreceptor activity derived using silent substitution paradigm
… decade of its discovery, the Electroretinogram (ERG) still remains the objective tool that is conventionally used in assessment of retinal function in health and disease. Although there is ongoing research in developing ERG- recording techniques, interpretation and clinical applications, there is …
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Analysis of Zebrafish Optic Tectum Visual Processing Before and After Optic Nerve Crush
… to compare them to previous electroretinogram (ERG) spectral sensitivity data (Bilotta & Harrison, 1999). The second purpose of this study was to examine neural regeneration in the adult zebrafish at various times post-crush and to compare visual processing of these subjects to the normal …
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Retinal function in deaf-blind syndromes
… dysfunction. In children with Usher syndrome ff-ERG under general anesthesia verified rod-cone degeneration with remaining rod function up to at least four years of age. The children had remaining cone responses to some extent, even in the early teens. Phenotypic heterogeneity in Usher syndrome …
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Ephemeral river systems at the Skeleton Coast, NW-Namibia - Sedimentological and geomorphological studies on the braided river dominated Koigab Fan, the Cenozoic succession in the Uniabmond area and comparative studies on fluvio-aeolian interaction between ephemeral rivers and the Skeleton Coast Erg
… dunes. This dune belt, termed Skeleton Coast Erg, starts abruptly with a series of barchans and large compound dunes 15 km north of the Koigab River and extends from 2-5 km inland sub-parallel to the South Atlantic margin of NW Namibia over a width of 3-20 km. As the SSE-NNW trending dune belt …
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Development of Multielectrode Electroretinography (meERG) for Human Clinical Use
… of Multielectrode Electroretinography (meERG) for Human Clinical use. Introduction Progressive retinal diseases such as macular degeneration, glaucoma, and retinitis pigmentosa begin with localized dysfunction that spreads, often remaining undetected until advanced stages. Existing …
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Diagnostic and Prognostic Biomarkers for Early Prostate Cancer
… by focusing on DNA methylation, and PTEN and ERG protein markers in a large biomarker study. During this study we overcame several technical challenges associated with a typical biomarker discovery/validation approach such as cohort development and sample collection, and recovery of …
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Role of Wnt5a in Prostate Cancer
… a positive correlation between Wnt5a and ERG protein expressions and that high Wnt5a protein and presence of ERG expression predicted a more favorable outcome. Despite this we observed that rWnt5a treatment of VCaP cells significantly decreased their ERG protein expression. Therefore, the …
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