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 10 of 10 for “"Endolymph"”.
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A viscoelastic model for the response of a step change in velocity of the human otolith organs
… skull by a gel layer, surrounded by a viscous endolymph fluid. The gel layer is considered to be a viscoelastic solid, and modeled as a simple Kelvin element. The governing differential equations are derived and nondimensionalized, yielding three nondimensional parameters: nondimensional …
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Bi-layered viscoelastic model for a step change in velocity and a constant acceleration stimulus for the human otolith organs
… consisting of three distinct elements, a viscous endolymph fluid in contact with a rigid otoconial layer that is attached to the skull by a viscoelastic gel layer. However, in this model the gel layer is considered as a bi-layered viscoelastic solid and is modeled as a simple Kelvin-Voigt …
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Novel Non-Repulsive Outcomes From Ephrin-B Reverse Signaling
… within the vestibular apparatus and abnormal endolymph fluid. Further, I show that EphB2 and ephrin-B2 are expressed on non-motile, secretory epithelia within the inner ear, suggesting that these molecules play important roles in maintaining the proper volume and ionic makeup of the endolymph …
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Modeling the Stimulation of Vestibular Hair Cell Bundles Using Computational Fluid Dynamics and Finite Element Analysis
… with tall steriocilia are hindered by the endolymph while those with short steriocilia and much taller kinocilia are assisted by the fluid flow. Each bundle type has a different range over which it is most sensitive so that the bundles cumulatively cover a very large range of stimuli; the …
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Anatomy of the transmastoid endolymphatic sac decompression in the management of Ménière’s disease.
… vertigo and hearing loss (Morrison, 1981). Endolymphatic sac decompression has been advocated on the basis that endolymphatic hydrops is the underlying pathology. The endolymphatic sac is said to be the terminal dilatation of the membranous labyrinth. It has been proposed that endolymph …
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Viscosity and porosity contribute to both speed and decay of tectorial membrane traveling waves
… measured for mouse TMs immersed in artificial endolymph solutions with poly-ethylene glycol (PEG) added to increase viscosity. Two PEGs with different molecular weights (MW) were used: one (8 kDa) chosen to penetrate TM pores [30] while the other (400 kDa) could not. Findings show that …
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Uncovering the role of biomineralisation in otolith trace element uptake by microstructural and microchemical analysis
… is linked to the organic composition in the endolymph during mineralisation, and the organic matrices may in part assist the uptake of Sr. The study revealed that whilst the otolith biomineralisation is directed and templated, with aragonite orientation constrained by the insoluble organic …
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Characterization of cochlear transcription, translation and energy extraction in aging and noise-induced pathology
… of performing voltage-sensing operations within endolymph and wirelessly relaying this information to an external receiver. This study was the first to utilize a mammalian electrochemical potential to power an electronic device. By performing this task while preserving the integrity of the …
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A Computational Study on the Structure, Dynamics and Mechanoelectric Transduction of Vestibular Hair cell
… the dynamic response of hair bundles in the endolymph fluid, I have included fluid drag in the model. Link nonlinearity has been added to reflect recent observations (Tsuprun 2003). The lateral links stiffen as they stretch and prevent contact between stereocilia when they compress. In …
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Der kolloidosmotische Druck von Blutplasma und Plasmaersatzmitteln unter Aspekten der Innenohrtherapie
Diese Arbeit untersucht die meßtechnischen Voraussetzungen, Einfluß- und Störfaktoren bei Messungen des kolloidosmotischen Druckes (KOD) und den circadianen Rhythmus des plasmatischen KOD. In Anlehnung an die Dissertation von R. Hampe [2000] werden die Ergebnisse der Messungen des KOD von über 200 …