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 “"Eardrum"”.
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Translational optical coherence tomography for quantitative assessments of eardrum biomechanics, effusions, and biofilm response during otitis media
Author requested closed access (OA after 2yrs) in Vireo ETD system
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The influence of ploidy level on the hearing sensitivity of the sister species Hyla chrysoscelis and Hyla versicolor
… Performance was measured as vibration of eardrums, distortions by hair cells in the inner ears, and electrical activity in an auditory nucleus of the brain. All morphological features were slightly larger in H versicolor than H chrysoscelis; including SVL, body mass, interaural distance, …
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Tuning of the middle ear in túngara frogs ( Engystomops pustulosus)
… pathways are known to receive sound in frogs. Eardrums receive high-frequency sound, lungs receive low-frequency sound and forelegs, via the opercularis system, receive seismic frequencies. Túngara frogs are an anomaly among amphibians for having a low frequency mate-identification call, …
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Non-invasive assessment of biofilm growth in the middle ear using a portable low-coherence interferometry system
… bacterial biofilm behind the tympanic membrane (eardrum). Biofilms are typically very thin, making them difficult to be recognized using a regular otoscope. However, lowcoherence interferometry (LCI) is capable of detecting and quantifying this microstructure. The goal of this research was to …
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Amphibian communication: Coupling of acoustic systems to the medium at the air-water interface
… underwater. Females floated and swam with their eardrums and body walls constantly submerged. Using laser Doppler vibrometry, peak vibrations of female eardrums were found to be centered at about 3.5 kHz in air, but dropped to about 1.4 kHz underwater. The peak velocity of the eardrum was about …
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Material Evidence
… between the moment pressure waves pass over the eardrum and neurological transmission occurs throughout the brain, and I see this as an opportunity to find new ways to write and dialog about music. Material Evidence experiments with incorporating ideas gathered from the study of music cognition, …
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Pressure versus impulse graph for blast-induced traumatic brain injury and correlation to observable blast injuries
… regions were overlaid with lung damage and eardrum rupture P-I curves. Seven correlations were found between the bTBI regions and the observable injuries. bTBIs are not a new phenomenon, but in the past other serious injuries were more prominent, due to body armor not attenuating the shock …
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Expression, Production, and Purification of Novel Therapeutic Proteins
… of bone density loss and the repair of the eardrum, specifically, by choosing an appropriate fusion partner (parathyroid hormone or epidermal growth factor). The production of CBD fusions was examined using batch and fed-batch culturing of Escherichia coli to express the fusion proteins, and …
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Role of downstream signal transduction molecules of congenital middle ear cholesteatoma according to its site of origin
… its pathogenesis by analysing the findings of eardrum, operation and temporal bone computed tomograpy. By RT-PCR and immunohistochemical techniques, we investigated the reaction patterns of antibodies to PLC-γ1, EGFR, PDGFR-α, PDGFR-β, and PI3 kinase as the proliferation and differentiation …
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Effects of ear-canal geometry and middle-ear pressure on wideband acoustic reflectance
In this thesis, complex wideband acoustic immittance (WAI) measurements of the middle ear are studied. The body of work presented here has three major components: (1) design of a hearing measurement probe and probe tip, (2) extraction of the effects of the residual ear canal (REC) and estimation of …