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1
Eßer, Barbara. "EARS." Diss., lmu, 2004. http://nbn-resolving.de/urn:nbn:de:bvb:19-25979.
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Gordy, Clayton Jackson. "Ears on rears : transplantation of ears reveals afferent pathfinding properties." Thesis, University of Iowa, 2017. https://ir.uiowa.edu/etd/5939.
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Afferent neurons transmit information from both external and internal origin into the central nervous system (CNS). Sensory organs are connected at the periphery to these neurons, which in turn project into specific regions in the CNS. In sensory organs, such as the vertebrate ear, which receive auditory and vestibular stimuli, establishing precise connections with central targets is necessary for discrete, simultaneous, and efficient processing. However, it is not clear how afferents of the inner ear establish central projections with their target nuclei in the hindbrain. Transplantation of ears in Xenopus laevis offer a method through which the navigational properties of inner ear afferents can be experimentally tested. Specifically, grafting of ears to novel locations allow us to assess the pathfinding capabilities of afferents following ectopic placement.
In transplanting ears adjacent to the spinal cord, we found that despite variable entry points along the dorsal-ventral axis, afferents projected dorsally, similar to projections of native ears in the hindbrain. Furthermore, these afferents were able to reach the hindbrain and project into vestibular nuclei. Late stage transplantations to the spinal cord revealed ear afferent fasciculation with afferents of the lateral line, indicating an alternative navigational route. Similarly, ventral transplantations to the heart region demonstrated ear afferent projection with the vagus nerve. These results collectively suggest that inner ear afferents are molecularly guided to reach their targets in the CNS once they are in proximity to it. However, they also display a capability to project along existing nerves both within the central and peripheral nervous systems. These results provide new information into how inner ear afferents navigate to connect with the CNS.
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Shahnaz, Navid. "Distinguishing otosclerotic ears from healthy ears using multifrequency and multicomponent tympanometry." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=37837.
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The diagnostic utility of tympanometry with respect to distinguishing healthy and otosclerotic ears was investigated in four studies. This issue was examined with respect to alternative measures of static immittance (SI), tympanometric shape, resonant frequency (RF), and frequency corresponding to admittance phase angle of 45 degree (F45°) obtained from 68 healthy ears and 36 ears with surgically confirmed otosclerosis. Study 1 served to replicate previous findings that otosclerotic and healthy ears differ with respect to F45° and RF but not SI and TW measured at 226 Hz, thus confirming the advantage of multifrequency measures over standard low frequency tympanometric measures in differentiating healthy and otosclerotic ears. Studies 2 and 3 examined the effect of probe tone frequency on the diagnostic utility of SI and tympanometric shape. Group differences were evident for SI measured using a probe tone near the frequency corresponding to F45°, in the present study the optimal probe frequency was 630 Hz. Group differences were not evident for tympanometric width (TW) at 226 Hz, 350, and 450 Hz whereas the two groups differed in distribution of Vanhuyse patterns of 1B1G and 3B1G observed at frequencies between 800 Hz and 1250 Hz. In study 4 the diagnostic performance of five different tympanometric parameters was assessed using test performance and receiver operating characteristic (ROC) analysis. Results showed that F45° was the best single measure to distinguish healthy ears from otosclerotic ears; RF and SI measured at 630 Hz were the next best measures followed by Vanhuyse patterns; TW was the least useful measure. However, when compared using optimal decision criterion (derived from ROC analysis) differences in test performance for F45° and SI measured at 630 Hz were small suggesting that their clinical utility is comparable. Correlations and patterns of individual performance also confirm the presence of two independent signs of otoscle
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Jaishankar, Gayatri, Thomas M. Yohannan, and Roger Smalligan. "Draining Ears, Dizzying Clot." Digital Commons @ East Tennessee State University, 2009. https://dc.etsu.edu/etsu-works/8876.
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Coffin, Allison Beth. "Unconventional myosins in fish ears." College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/2445.
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Thesis (Ph. D.) -- University of Maryland, College Park, 2005.Thesis research directed by: Biology. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Arndt, Kenneth G. "Sermon contextualization for postmodern ears." Theological Research Exchange Network (TREN), 2006. http://www.tren.com/search.cfm?p068-0610.
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Landers, Marion Rose. "Lost Lesotho princess/landlord ears." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/4130.
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This thesis is titled Lost Lesotho Princess/Landlord Ears. It consists of an original play
of the same name based upon the life-story of the author’s paternal grandmother and an
accompanying essay titled “Lost Lesotho Princess/Landlord Ears: Visibility, Invisibility,
Roots and Liminality in the African Diaspora.” The play falls under the following
theatrical categories: African Diaspora drama, black theatre, western Canadian black
theatre, realism, the memory play and to some extent, contemporary existentialism. The
essay is a discussion by the author regarding the dramatic, social and political context of
the play. The following themes are highlighted: history — pertaining to a collective black
history and individual histories and (her)stories, regarding and respecting ones’ elders as
a link to history and Africa, and notions of commonality and difference within the
African Diaspora with attention paid to myths and narratives about what it means to be
‘dark-skinned’ or ‘light-skinned’ in various black communities around the world. The
methods of investigation were: a study of the drama and literature of the African
Diaspora, the dramatic literature of other post-colonial societies and marginalized groups,
one-on-one interviews with Rose Landers, whose experiences are represented by Carrie,
the main character in Lost Lesotho Princess/Landlord Ears and field research at JazzArt -
a dance-theatre company in Cape Town, South Africa. The view-point the play lends
itself to and the conclusions drawn by the essay are: that black people and black
communities need agency and healing, that being of mixed race does not have to equal
psychological confusion and that mixed communities, families and cultures have been
and will continue to be relevant to the universal black experience and the artistic
representation of the African Diaspora. The importance of writing as a form of healing,
resolution and revolution for members of the African Diaspora and the importance of
authorship of ones’ own history is highlighted.
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Saleh, Mohamed Ibrahim. "Using Ears for Human Identification." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/33158.
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Biometrics includes the study of automatic methods for distinguishing human beings based on physical or behavioral traits. The problem of finding good biometric features and recognition methods has been researched extensively in recent years. Our research considers the use of ears as a biometric for human recognition. Researchers have not considered this biometric as much as others, which include fingerprints, irises, and faces. This thesis presents a novel approach to recognize individuals based on their outer ear images through spatial segmentation. This approach to recognizing is also good for dealing with occlusions. The study will present several feature extraction techniques based on spatial segmentation of the ear image. The study will also present a method for classifier fusion. Principal components analysis (PCA) is used in this research for feature extraction and dimensionality reduction. For classification, nearest neighbor classifiers are used. The research also investigates the use of ear images as a supplement to face images in a multimodal biometric system. Our base eigen-ear experiment results in an 84% rank one recognition rate, and the segmentation method yielded improvements up to 94%. Face recognition by itself, using the same approach, gave a 63% rank one recognition rate, but when complimented with ear images in a multimodal system improved to 94% rank one recognition rate.Master of Science
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Fagelson, Marc. "What’s That Ringing in Your Ears?" Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/etsu-works/7633.
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Tinnitus has been bothering humanity since Ancient Babylon, plaguing everyone from Leonardo da Vinci to Charles Darwin. Today, roughly one in seven people worldwide experiences this auditory sensation. So what exactly is tinnitus, and where does this persistent sound come from? Marc Fagelson travels into the auditory system to explore the loss of silence.
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Shahnaz, Navid. "Multifrequenzy, multicomponent tympanometry in normal and otosclerotic ears." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23934.
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Nine tympanometric measures were examined in 68 normal ears and 14 ears with surgically confirmed otosclerosis. Two parameters, static admittance and tympanometric width, were derived from standard low frequency tympanometry and two parameters, resonant frequency and frequency corresponding to admittance phase angle of 45$ sp circ$ (F45$ sp circ),$ were derived from multifrequency, multicomponent tympanometry. The results show the advantage of multifrequency, multicomponent tympanometry over standard low frequency tympanometry in differentiating otosclerotic ears from normal ears. In particular, for identifying high impedance pathologies, the present findings support the use of sweep frequency (SF) recording for measuring resonant frequency and frequency corresponding to admittance phase angle of 45$ sp circ$ (F45$ sp circ)$ and positive tail compensation for measuring resonant frequency. The relationship among the measures obtained in this study also revealed that two distinct signs are evident in the patient group; (1) an increase in the stiffness of the middle ear best shown by F45$ sp circ$ measured using SF method, and (2) an increase in the sharpness of the tympanogram best shown by tympanometric width. The combination of F45$ sp circ$ measured using SF method and tympanometric width separated normal from otosclerotic ears better than any single measure used in this study.
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Beacham, Andrew Mark. "Pathogenicity determinants of Fusarium graminearum on wheat ears." Thesis, University of Exeter, 2011. http://hdl.handle.net/10036/3035.
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Some specialist microbes can deploy a range of mechanisms to cause disease on one or more host plant species. To identify entirely new classes of pathogenicity and virulence factors, a bioinformatics-reverse genetics approach has been applied to a plant pathogen where near complete genomic sequence information was available. A genomic region was identified on chromosome 1 of the important cereal pathogen Fusarium graminearum that contains a significant grouping of homologues of known virulence genes. Targeted deletion of these genes revealed a role for the neutral trehalase (NTH1) and protein kinase A regulatory subunit (PKAR) genes in the rate of disease symptom spread by F. graminearum, in addition to the previously reported SNF1 Ser/Thr protein kinase and STE7 MAP kinase kinase genes. Subsequent investigation of further genes at this locality revealed the presence of a gene, here named Fusarium graminearum Contributor to Virulence 1 (FCV1), which represent a novel class of gene required for a full rate of symptom spread. Targeted deletion of FCV1 led to a reduced rate of disease development by F. graminearum on wheat ears and Arabidopsis floral tissue, but did not affect trichothecene mycotoxin production. The fcv1 deletion mutant also exhibits altered hyphal growth, reduced asexual sporulation and altered sensitivity to oxidative and osmotic stress. In the complemented strain, wild-type traits were completely or partially restored. This micro-region of < 40 kb containing these five important genes represents a novel type of gene cluster containing genes required for a full rate of disease development. This micro-region is located in a genomic region of low recombination, is highly conserved in three other Fusarium species, but is less conserved in other plant pathogenic species. The micro-region is not defined by a distinct GC content or coordinated gene expression patterns, nor is it flanked by highly repetitive sequences. This micro-region is distinct from the previously identified fungal and bacterial virulence gene clusters and the clustered biosynthesis-associated genes required to synthesis metabolites which contribute to pathogenicity. This method for novel disease development-contributing gene identification is applicable to any sequenced pathogen species.
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Huang, Gregory T. (Gregory Tsan-Kao). "Measurement of middle-ear acoustic function in intact ears : application to size variations in the cat family." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/79972.
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Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1999.Includes bibliographical references (p. 189-196).
by Gregory T. Huang.
Ph.D.
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Mejel, Jalal B. (Jalal Bezee). ""Falling upon deaf ears" : the case of colloquial architecture." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/68721.
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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1990.Supervised by David Hodes Friedman.
Includes bibliographical references (p. 181-187).
World War II had instigated a strong national movement in The Middle East. In the Fifties and Sixties this region witnessed the end of colonialism in wide spread revolutions. The predominantly agrarian societies of The Middle East were mobilized to modernize. The institutions, with a specific understanding of modernity, mobilized a society with deeply ingrained tradition to change. This intersection of modernity and tradition had produced rich and unique cultural manifestation. A local formulation that captured the essence of this intersection was manifested. This thesis proposes this manifestation as "colloquial" in nature and will aim at recovering it. A reconstruction of the society's cultural history - institutional intervention: physical as in architecture and urban planning; social as in mass media and social programs- of the Fifties and Sixties is necessary to this recovery. Colloquial architecture had a space of aesthetic that was in tune with its cultural history. This has rendered the architectural expression constantly shifting, thus the difficulty of its recovery . This thesis will trace the particularities of colloquial architecture, as they break away from modern and traditional discourses, by alternatively assuming the position of a modernist and traditionalist. Particular methods will be employed to the various discursive fields that will be analyzed. The mode of analysis will be semiological in nature.
by Jalal B. Mejel.
M.S.
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Hansley, Earnest Eugene. "Identification of Individuals from Ears in Real World Conditions." Scholar Commons, 2018. http://scholarcommons.usf.edu/etd/7162.
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A number of researchers have shown that ear recognition is a viable alternative to more common biometrics such as fingerprint, face and iris because the ear is relatively stable over time, the ear is non-invasive to capture, the ear is expressionless, and both the ear’s geometry and shape have significant variation among individuals. Researchers have used different approaches to enhance ear recognition. Some researchers have improved upon existing algorithms, some have developed algorithms from scratch to assist with recognizing individuals by ears, and some researchers have taken algorithms tried and tested for another purpose, i.e., face recognition, and applied them to ear recognition. These approaches have resulted in a number of state-of-the-art effective methods to identify individuals by ears. However, most ear recognition research has been done using ear images that were captured in an ideal setting: ear images have near perfect lighting for image quality, ears are in the same position for each subject, and ears are without earrings, hair occlusions, or anything else that could block viewing of the entire ear.
In order for ear recognition to be practical, current approaches must be improved. Ear recognition must move beyond ideal settings and demonstrate effectiveness in an unconstrained environment reflective of real world conditions. Ear recognition approaches must be scalable to handle large groups of people. And, ear recognition should demonstrate effectiveness across a diverse population.
This dissertation advances ear recognition from ideal settings to real world settings. We devised an ear recognition framework that outperformed state-of-the-art recognition approaches using the most challenging sets of publicly available ear images and the most voluminous set of unconstrained ear images that we are aware of. We developed a Convolutional Neural Network-based solution for ear normalization and description, we designed a two-stage landmark detector, and we fused learned and handcrafted descriptors. Using our framework, we identified some individuals that are wearing earrings and that have other occlusions, such as hair. The results suggest that our framework can be a gateway for identification of individuals in real world conditions.
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Lewis, Jill C. "Listen with your three ears : a pedagogy of the heart." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/54123.
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In this era of Reconciliation in Canada, how can we ensure that our future generations continue to keep spaces open for Indigenous ways of knowing and worldviews, while disrupting and troubling the institutional norms that hide behind a guise of tolerance? How do we help write a new story for Canada based on shifting the way we relate to one another and how we educate our children, both Aboriginal and non-Aboriginal? How can we help educators and others to learn to listen with their three ears so they may hear the truths and wisdom embedded in Indigenous cultural realities?
I propose that through story making, story telling and story listening, children maintain their learning spirit, a necessity if they are to acknowledge and affirm and maintain their identities, their cultures and their ways of knowing and worldviews. Stories transform our understanding of each other and act as a means to form and build relationships.
Through an educational lens and voice, I intentionally interrupt the discourses of deficit propagated by historical and contemporary institutions, in order to explore ways narrative can pry open and dislodge the 500-year old myths lade on the backs of Aboriginal peoples. I suggest that by opening spaces of mutuality, respect, reverence, reciprocity and responsibility through intergenerational story making, story telling and story listening narratives, our Aboriginal learners will find parity and success with their non-Aboriginal peers in educational settings.
In order to delve into intergenerational understandings of story, I sat with and listened to members of four B.C First Nations families. Within relaxed and respectful discussions about how story figures in their lives, some salient themes occurred related to residential schooling, living with and away from one’s cultural communities, which revealed consequences linked to identity, language and educational connections and successes. All of the stories and teachings I was privileged to witness have transformed me in heart and mind and continue to bring me closer to understanding the sensitivity and protocols required to exemplify resepctful “story work”(Archibald, 2008, p. 3).Education, Faculty of
Graduate
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Snow, Kristine Garren. "Through the Eyes and Ears of Students: Sixth Graders' Worries." Diss., Virginia Tech, 1999. http://hdl.handle.net/10919/28534.
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The primary purpose of this qualitative study was to discover the kinds of issues that were troubling sixth-grade students while they were in school through focus groups which were led by eighth-grade peer helpers in the school, the Natural Helpers. The second purpose of this study was to evaluate the information that the Natural Helpers gathered in the focus groups and to compare this information to the information that the participants reported on a personal problem checklist. Third, the purpose of this study was to keep a tally of the types of worries about which the sixth graders sought help from heir guidance counselor. Fourth, the purpose of this study was to compare these findings to information in the existing literature.
The participants were 48 sixth-grade students (21 males and 27 females) whose heterogeneously-grouped classes at a suburban middle school in the Roanoke Valley in Virginia were randomly selected to participate in this study. After the students and the parents of the students signed informed consent forms, the students completed personal problem checklists and participated in one of nine student-led focus groups. Two of the focus groups were exclusively male, two were exclusively female, and the remaining groups contained males and females.
Results from the study indicated that the participants reported a variety of worries, but the majority of their discussions pertained to issues concerning grades, social lives, violence, trouble at school, and family issues. The sixth graders reported similar issues as concerns on the personal problem checklist and sought assistance from their guidance counselor for similar concerns. However, there was one main difference in the findings between the three methodologies: the students sought assistance for worries concerning violence and spoke extensively about their concerns regarding violence during the focus groups but did not report violence as a main concern on the problem checklist. Probable reasons for these differences were addressed. Overall, the participants reported many concerns that were similar to the concerns that were reported by other adolescents in the professional literature, and they reported concerns that were consistent with the developmental literature. Exclusively male focus groups, exclusively female focus groups, and mixed focus groups generated similar information with a few noted exceptions regarding the content of their discussions and with a few noted exceptions regarding the extent to which the males spoke during the groups. This study generated recommendations for future research and for the counseling profession.Ed. D.
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Jones, Karen Elizabeth. "High frequency acoustic reflexes in cochlea-impaired and normal ears." PDXScholar, 1990. https://pdxscholar.library.pdx.edu/open_access_etds/4096.
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The acoustic reflex refers to the contraction of a middle ear muscle in response to sound. The contraction causes a stiffening of the middle ear system and, consequently, the flow of acoustic energy to the cochlea is impeded. By measuring the change in admittance in the auditory system during sound stimulation it is possible to indirectly monitor the middle ear muscle contractions. Such measurements provide useful information regarding the integrity of the auditory system and the location of the auditory pathology.
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Saunders, Ralph Helperin 1961. "You be our eyes and ears: Doing community policing in Dorchester." Diss., The University of Arizona, 1997. http://hdl.handle.net/10150/282442.
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This dissertation argues that community policing--which police describe as a form of policing centered around the principles of partnership, prevention and problem solving--is an illusion which serves to legitimate the police without fundamentally changing the way police do their job. Community policing, I argue, is a logical extension and refinement of the basic technics of policing. This is evident in the ways that police hope to organize city residents into a policing body within which civilians serve as the eyes and ears of the police. It is evident also in the ways that police are dominating urban space. A second argument is that because of its emphasis on partnership, community policing contains within it a mechanism--unintended by its architects and unrecognized by police--by which communities can shape police practice even as police strive to shape, control and in some cases dissolve communities. Thus community policing is one such instance in which the very means by which a repressive agency of the state bureaucracy exercises its power can serve not only as a point of resistance to state projects but may even provide a mechanism for shoring up and reconstituting popular traditions--in this case, community. In Boston, civilians hope to use community policing as a means for capturing and thereby shaping police practice and for (re-)building neighborhood-based communities. My discussion draws upon twenty months of field experience in Boston where I interviewed community activists and engaged police and communities through intensive participant observation.
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Mackie, David J. "Biologically inspired acoustic systems : from insect ears to MEMS microphone structures." Thesis, University of Strathclyde, 2015. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=26578.
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Although difficult to notice initially, examples of bioinspired technology have now become commonplace in society today. Construction materials, aerodynamic transport design, photography equipment and robot technology are among many research fields which have benefitted from studying evolution-driven solutions to common engineering problems. One field of engineering research which has recently begun to take inspiration from the natural world is that of acoustical systems such as microphones and loudspeakers. Specifically, to solve the problems involved in the miniaturisation of these systems, the auditory organs of insects are inspiring new design strategies. In this thesis, one such insect auditory system, that of the desert locust Schistocerca gregaria, was extensively studied beginning with a comprehensive review of the historical observations of the system. Micro-scanning laser Doppler vibrometry was then used to characterise the response of the locust ear, providing an explanation for the method behind frequency discrimination in the ear. Afterwards, finite element models, simulating the ear's features, were constructed with a view to furthering the understanding of each component of the hearing system. Directionality of the locust hearing system was also briefly investigated through computational modelling. All of these studies were performed with the overall aim of feeding into the future design of bioinspired acoustic sensors. Devices constructed using micro-electro-mechanical systems fabrication techniques, with similar dimensions to the ear of the parasitoid fly, Ormia ochracea, were then experimentally tested using laser vibrometry and simulated using finite element analysis. Although not originally designed to operate as such, one MEMS structure exhibited some element of mechanical directionality in its response, found to be both predictable and repeatable. The objective of this section of the PhD research was to test the hypothesis that any system with sufficient degrees of freedom is capable of displaying an element of directionality in its vibrational response.
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Murnane, Owen D. "Transient Evoked Otoacoustic Emissions in Normal Hearing and Hearing Impaired Ears." Digital Commons @ East Tennessee State University, 1997. https://dc.etsu.edu/etsu-works/1950.
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Hadlington, Lee J. "The effects of presenting irrelevant sound to either the left ear, the right ear or both ears : evidence for hemispheric differences in the processing of sound." Thesis, University of Wolverhampton, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408483.
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Meinke, Deanna Kay. "Detailed DPOAE level/phase maps in normal and noise-damaged human ears." Diss., Connect to online resource, 2005. http://wwwlib.umi.com/cr/colorado/fullcit?p3190388.
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Baker, Richard Julian. "Nonlinear and other properties of otoacoustic emissions in frog and human ears." Thesis, Keele University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306104.
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Gaskill, Sally Ann. "A detailed investigation of acoustic distortion from human and guinea-pig ears." Thesis, University of Sussex, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240009.
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Bergman, Clifford W. "Turning ears into eyes capturing the images of the Bible through preaching /." Theological Research Exchange Network (TREN), 1998. http://www.tren.com.
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Bosman, Riëtte. "Threshold estimation in normal and impaired ears using Auditory Steady State Responses." Pretoria : [s.n.], 2003. http://upetd.up.ac.za/thesis/available/etd-10282004-080444.
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Deng, Xiaohong. "Comparative studies on the structure of the ears of deep-sea fishes." College Park, Md.: University of Maryland, 2009. http://hdl.handle.net/1903/9491.
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Thesis (Ph. D.) -- University of Maryland, College Park, 2009.Thesis research directed by: Dept. of Biology. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Pogson, Jacob M. "Moving Ears and Eyes: Quantifying the Head-Impulse Test in the Clinic." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/20935.
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Visual fixation is maintained during a rapid passive ‘head-impulse’ stimulus by the vestibulo-ocular reflex (VOR) while saccades change fixation. This thesis examines these eye movement characteristics with the monocular video head impulse test (vHIT) of the right eye. In eighty healthy controls, the VOR gain was found to depend on analysis method and the stimulus peak velocity, with age affecting only the left posterior and anterior canals. Minuscule compensatory saccades were common towards lateral and posterior canals, but rare towards anterior canals, and became larger and more common in older subjects. In forty subjects before complete unilateral vestibular loss (UVL) for schwannoma, the VOR gains of the lateral and posterior canals of the ipsilesional ear reduced. After surgery, the OFF direction of the remaining ear was reduced for all canals. The dynamic range (ON minus OFF) of the posterior canal was only 39% of the lateral and anterior canals. After surgery, from one week to one year the first compensatory saccade frequency was permanently saturated at unchanged amplitudes, while the second saccade decreased in both measures. Saccade latency was earlier with lower gains. In twenty-two UVL subjects, early saccades occurred at similar frequency, magnitude, and latency with and without visual fixation. However, in eighteen healthy and eight bilateral vestibular loss (BVL) subjects, visual fixation evoked more late compensatory saccades than without fixation. Late saccades in UVL were smaller in magnitude and increased in latency. BVL subjects showed more frequent and larger early and late saccades with fixation. A case-series of twenty-seven subjects after sudden hearing loss with vertigo commonly showed loss of the posterior canal VOR and cochlear function. Audio-vestibular tests cannot distinguish between ischaemic and non-ischaemic causes. In summary, quantification of both the VOR and compensatory saccades are useful for identifying lesions involving each semicircular canal.
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Mason, S. M. "Objective waveform detection in electric response audiometry." Thesis, University of Nottingham, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.353922.
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Guzzo, Anne Marie. "The life and music of Carl Stalling : from toy pianos to dog ears /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2002. http://uclibs.org/PID/11984.
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Schairer, Kim, Douglas H. Keefe, Denis Fitzpatrick, Daniel Putterman, Elizabeth Kolberg, Angie Garinis, Michael Kurth, Kara McGregor, Ashley Light, and M. P. Feeney. "Wideband Transient Otoacoustic Emissions in Ears with Normal Hearing and Sensorineural Hearing Loss." Digital Commons @ East Tennessee State University, 2018. https://doi.org/10.1121/1.5068081.
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Otoacoustic emissions (OAEs) are generated in the cochlea in response to sound and are used clinically to separate ears with normal hearing from sensorineural hearing loss (SNHL). OAEs were elicited at ambient pressure by clicks (CEOAE) and wideband chirps (TEOAE) sweeping from low-to-high frequency with a sweep rate of either 187.6 Hz/ms (short chirps) or 58.2 Hz/ms (long chirps) and a bandwidth extending to 8 kHz. Chirps were presented at the same sound exposure level (SEL) as clicks, or + 6 dB relative to clicks. A total of 288 OAE waveforms were averaged for short chirps in ~1 minute compared to 120 waveforms for long chirps. Compared to clicks, the chirp has a lower crest factor, which allows it to be presented at an overall higher SEL without distortion. OAEs were elicited in 79 adults with normal hearing and 51 adults with mild-to-moderate SNHL. One-sixth octave OAE signal-to-noise ratios from 0.7 to 8.0 kHz were compared across stimulus types and conditions. The area under the receiver operating curve (AUC) was used to assess the accuracy of detecting SNHL. Average AUCs across 1/6th octave frequencies ranged from 0.90 to 0.89 for TEOAEs and were 0.87 for the CEOAE suggesting excellent test performance.
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Mackenzie, Francesca Emily. "Positional cloning and phenotypic characterisation of the novel hearing-impaired mouse mutant Cloth-ears." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.442824.
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Kemp, Keoki W. "They Have No Ears to Hear My Pleas: Short Stories of the Post-Apocalypse." DigitalCommons@USU, 2018. https://digitalcommons.usu.edu/etd/7054.
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This is a creative thesis consisting of two short stories in the post-apocalyptic genre. A genre that highlights suffering, societal trauma, and the effects of trauma and loss on the human psyche. This genre asks the reader to be sympathetic to these extreme plights. Post-apocalyptic narratives also feature classic heroes who come out on top, despite the genre’s harrowing settings. The two stories featured in this creative thesis are an answer to my inquiry into the genre and seeks not only to show what makes post-apocalyptic literature entertaining but also worthy of literary merit.
The two short stories that constitute this body of work are “A Muddled Canvas,” and “They Have No Ears to Hear My Pleas.” The first story, “A Muddled Canvas,” asks what responsibility God, the protagonist, has to those who remain after the apocalypse he created. The story follows God as he tries to come to terms with the effects his actions have on his creations. The other story, “They Have No Ears to Hear My Pleas,” follows the life of a therapist turned apathetic to his clients’ issues because of the apocalypse. After so much time spent helping others, he develops a bad case of compassion fatigue.
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Zolfaghari, Reza. "Large Deformation Diffeomorphic Metric Mapping Provides New Insights into the Link Between Human Ear Morphology and the Head-Related Transfer Functions." Thesis, The University of Sydney, 2016. http://hdl.handle.net/2123/16701.
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The research findings presented in this thesis is composed of four sections. In the first section of this thesis, it is shown how LDDMM can be applied to deforming head and ear shapes in the context of morphoacoustic study. Further, tools are developed to measure differences in 3D shapes using the framework of currents and also to compare and measure the differences between the acoustic responses obtained from BEM simulations for two ear shapes. Finally this section introduces the multi-scale approach for mapping ear shapes using LDDMM. The second section of the thesis estimates a template ear, head and torso shape from the shapes available in the SYMARE database. This part of the thesis explains a new procedure for developing the template ear shape. The template ear and head shapes were are verified by comparing the features in the template shapes to corresponding features in the CIPIC and SYMARE database population. The third section of the thesis examines the quality of the deformations from the template ear shape to target ears in SYMARE from both an acoustic and morphological standpoint. As a result of this investigation, it was identified that ear shapes can be studied more accurately by the use of two physical scales and that scales at which the ear shapes were studied were dependent on the parameters chosen when mapping ears in the LDDMM framework. Finally, this section concludes by noting how shape distances vary with the acoustic distances using the developed tools. In the final part of this thesis, the variations in the morphology of ears are examined using the Kernel Principle Component Analysis (KPCA) and the changes in the corresponding acoustics are studied using the standard principle component analysis (PCA). These examinations involved identifying the number of kernel principle components that are required in order to model ear shapes with an acceptable level of accuracy, both morphologically and acoustically.
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Joseph, Joby. "Why only two ears? Some indicators from the study of source separation using two sensors." Thesis, Indian Institute of Science, 2004. http://hdl.handle.net/2005/55.
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In this thesis we develop algorithms for estimating broadband source signals from a mixture using only two sensors. This is motivated by what is known in the literature as cocktail party effect, the ability of human beings to listen to the desired source from a mixture of sources with at most two ears. Such a study lets us, achieve a better understanding of the auditory pathway in the brain and confirmation of the results from physiology and psychoacoustics, have a clue to search for an equivalent structure in the brain which corresponds to the modification which improves the algorithm, come up with a benchmark system to automate the evaluation of the systems like 'surround sound', perform speech recognition in noisy environments. Moreover, it is possible that, what we learn about the replication of the functional units in the brain may help us in replacing those using signal processing units for patients suffering due to the defects in these units.
There are two parts to the thesis. In the first part we assume the source signals to be broadband and having strong spectral overlap. Channel is assumed to have a few strong multipaths. We propose an algorithm to estimate all the strong multi-paths from each source to the sensors for more than two sources with measurement from two sensors. Because the channel matrix is not invertible when the number of sources is more than the number of sensors, we make use of the estimates of the multi-path delays for each source to improve the SIR of the sources. In the second part we look at a specific scenario of colored signals and channel being one with a prominent direct path. Speech signals as the sources in a weakly reverberant room and a pair of microphones as the sensors satisfy these conditions. We consider the case with and without a head like structure between the microphones. The head like structure we used was a cubical block of wood. We propose an algorithm for separating sources under such a scenario. We identify the features of speech and the channel which makes it possible for the human auditory system to solve the cocktail party problem. These properties are the same as that satisfied by our model. The algorithm works well in a partly acoustically treated room, (with three persons speaking and two microphones and data acquired using standard PC setup) and not so well in a heavily reverberant scenario.
We see that there are similarities in the processing steps involved in the algorithm and what we know of the way our auditory system works, especially so in the regions before the auditory cortex in the auditory pathway. Based on the above experiments we give reasons to support the hypothesis about why all the known organisms need to have only two ears and not more but may have more than two eyes to their advantage. Our results also indicate that part of pitch estimation for individual sources might be occurring in the brain after separating the individual source components. This might solve the dilemma of having to do multi-pitch estimation. Recent works suggest that there are parallel pathways in the brain up to the primary auditory cortex which deal with temporal cue based processing and spatial cue based processing. Our model seem to mimic the pathway which makes use of the spatial cues.
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Watkins, Sharon C. (Sharon Carp). "Vocal Pitch-Matching: The Effect of Singing into the Right Ears of Fifth-Grade Students." Thesis, University of North Texas, 1992. https://digital.library.unt.edu/ark:/67531/metadc500713/.
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This study investigated whether fifth-grade students would sing more accurately when responding to pitch stimuli presented to the right ear as compared to left and both ears. Students were also classified as either strongly right-handed or other (left-handed or mixed) to see if ear treatment responses would differ with handedness. Sixty-six students were tested on their attempts to match 12 model pitches. Identical tests were given to each subject on 3 different days, with a different ear treatment each day. Vocal response scores were significantly better for both-ear presentation than for left-ear. No significant difference was found between right and both ears, right and left ears, or between handedness groups.
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Whitehead, Martin Laurence. "Some properties of otoacoustic emissions in verterbrate ears, and their relationship to vertebrate hearing mechanisms." Thesis, Keele University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277119.
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Mylroie, Leif Saxon. "SPATIAL DISPERSION OF THE FUNGUS ASPERGILLUS FLAVUS IN CORN EARS: A SPATIAL ANALYSIS OF UBIQUITIN MRNA." MSSTATE, 2009. http://sun.library.msstate.edu/ETD-db/theses/available/etd-07022009-093901/.
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Aflatoxin is a carcinogen produced by the fungus Aspergillus flavus that causes millions of dollars in agriculture losses in the southeastern US. This thesis examines the dispersal of A. flavus on two corn inbred lines, resistant (Mp313E) and susceptible (B73), which differ in total aflatoxin accumulation after infection with A. flavus. After inoculating corn kernels with the fungus an RNA analysis was used to determine the location (number of kernels away from inoculation site) and abundance of A. flavus at weekly intervals. A. flavus started its spread at 7 days after inoculation (DAI) on both corn lines. The B73 corn line showed a constant spread of 3.4mm per day until the entire ear was infected at 21 DAI. The spread on Mp313E did not proceed beyond 3 kernels away from the inoculation site following 7 DAI. The results are significant because they show a faster rate of spread than previously reported and they help quantify the ability of Mp313E to mitigate infection.
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Dunfee, David A. Hegler Benjamin L. "Biological terrorism preparedness evaluating the performance of the Early Aberration Reporting System (EARS) syndromic surveillance algorithms /." Monterey, Calif. : Naval Postgraduate School, 2007. http://bosun.nps.edu/uhtbin/hyperion-image.exe/07Jun%5FDunfee.pdf.
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Thesis (M.S. in Applied Science (Operations Research))--Naval Postgraduate School, June 2007.Thesis Advisor(s): Ronald D. Fricker. "June 2007." Description based on title screen as viewed on August 14, 2007. Includes bibliographical references (p. 45-46). Also available in print.
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Derkx, Hay P. Th. ""For your ears only" quality of telephone triage at out-of-hours centres in the Netherlands /." Maastricht : Maastricht : Maastricht University ; University Library, Universiteit Maastricht [host], 2008. http://arno.unimaas.nl/show.cgi?fid=11378.
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Peach, P. J. "They don't eat with deaf ears : tourism and exchange in a Papua New Guinea highland village." Thesis, University of Manchester, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.543252.
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Hegler, Benjamin L. "Biological terrorism preparedness evaluating the performance of the Early Aberration Reporting System (EARS) syndromic surveillance algorithms." Thesis, Monterey, California. Naval Postgraduate School, 2007. http://hdl.handle.net/10945/3373.
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After the terrorist attacks of September 11, 2001, questions developed over how quickly the country could respond if a bioterrorism attack was to occur. "Syndromic surveillance" systems are a relatively new concept that is being implemented and used by public health practitioners to attempt to detect a bioterrorism attack earlier than would be possible using conventional biosurveillance methods. The idea behind using syndromic surveillance is to detect a bioterrorist attack by monitoring potential leading indicators of an outbreak such as absenteeism from work or school, over-the-counter drug sales, or emergency room counts. The Center for Disease Control and Prevention's Early Aberration Reporting System (EARS) is one syndromic surveillance system that is currently in operation around the United States. This thesis compares the performance of three syndromic surveillance detection algorithms, entitled C1, C2, and C3, that are implemented in EARS, versus the CUSUM applied to model-based prediction errors. The CUSUM performed significantly better than the EARS' methods across all of the scenarios evaluated. These scenarios consisted of various combinations of large and small background disease incidence rates, seasonal cycles from large to small (as well as no cycle), daily effects, and various levels of random daily variation. This results in the recommendation to replace the C1, C2, and C3 methods in existing syndromic surveillance systems with an appropriately implemented CUSUM method.
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Walley, Rosemary. "Kadadjiny Dwank (listening, thinking and learning with your ears): Otitis Media from an Urban Aboriginal perspective." Thesis, Curtin University, 2020. http://hdl.handle.net/20.500.11937/85351.
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This thesis reports on the Kadadjiny Dwank (listening, thinking and learning with your ears) research project on otitis media (OM), or middle ear disease, conducted in partnership with local Aboriginal health organisations in two areas of Perth, Western Australia. Focused on the experiences and needs of urban Aboriginal families and their children suffering with OM, Kadadjiny Dwank is believed to be the first qualitative and urban-focused project on this issue, contributing to an identified research gap.
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Bradley, Wendy Lara. "Electronic Audience Response System in the secondary mathematics classroom to engage students." Diss., Temple University Libraries, 2015. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/332940.
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Math & Science EducationPh.D.
There is a current push for students to reach higher levels of achievement in mathematics in order to compete in today’s technologically changing world—a push that is being led by the Common Core Standards Initiative (CCSI) and the National Council of Teachers of Mathematics (NCTM). The issue with this new push, however, is that most students are disinterested in mathematics, resulting in them choosing to not participate in class. Active participation is a form of behavioral engagement that can lead to cognitive engagement and higher achievement. To improve participation, the expectancy-value theory suggests that the perceived benefit of participation needs to be increased while the cost reduced. Electronic audience response systems (EARS) have the potential to accomplish this, and they have begun to be implemented at the college level with primarily positive results. The purpose of this study is to examine if EARS can similarly improve student participation and achievement in the secondary geometry classroom. Using a quasi- experimental design, this study compared students’ participation using hand raising versus EARS devices in the classroom and found that student participation increased significantly when using EARS. To look at achievement, a treatment and comparison group design was used, and despite that no statistically significant difference was found, the results do support EARS’ potential to improve achievement. Lastly, this study looked at student and teacher perceptions of using the EARS in the classroom, and found mixed results.
Temple University--Theses
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Honisch, Stefan Sunandan. "Different eyes, ears, and bodies : pianist Nobuyuki Tsujii and the education of the sensorium through musical performance." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/57030.
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My dissertation explores the educative possibilities and limits of musical performance as a medium through which musicians and audiences reimagine sensory, affective, bodily, and cognitive experiences of music. The dissertation's focal point is a 2013 recital at the University of British Columbia by pianist Nobuyuki Tsujii, as part of Beyond the Screen: disAbility and the Arts, a series that raised questions about the reception of musicians with disabilities, the inclusion of disabled bodies in music pedagogy, and the meritocratic ethos that underpins competitive practices in music, education, and society.
The polemical reception of Tsujii's shared gold medal with Haochen Zhang at the 2009 Van Cliburn International Piano Competition in Fort Worth, Texas serves as the larger context for the present study. Speculation as to the role that Tsujii's blindness played in his favorable evaluation by the competition jury (Ivry, 2009) was countered by denial of any such influence (Kaplinsky, quoted in Wise, 2009), throwing into sharp relief a profound discomfort among musicians, critics and the general public with the disabled body in music. Tsujii himself declared shortly after the competition that he would like to be received as "simply a pianist" (Oda, 2009, para. 6) and has continued to resist the category of "blind pianist" (Ikenberg, 2014b, para. 8).
Interviews with Tsujii and a purposive sample of eleven individual audience members following his 2013 UBC recital, combined with textual analysis of newspapers, magazines, and films documenting the pianist's career since 2009 locate Tsujii's reception in an educative gap between performer and audience, akin to that between teacher and student, a philosophical stance which emphasizes education as an interaction between the one who teaches and the one who learns (Biesta, 2004, p. 13). Showing how different levels of familiarity with the conventions of musical performance lead performers, critics, and audiences to interact with Tsujii as pianist and blind pianist in multiple and sometimes contradictory ways, this dissertation contributes to scholarship on the aesthetic and pedagogical significance of "person-first" versus "disability-first" language, the educative capacities of musical performance, and on the place of disabled bodies in music pedagogy.Education, Faculty of
Graduate
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Sit, Ji-Jon 1975. "A low-power analog logarithmic map circuit with offset and temperature compensation for use in bionic ears." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/16893.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.Includes bibliographical references (p. 74-75).
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Logarithmic map circuits are useful in many applications that require non-linear signal compression, such as in speech recognition and cochlear implants. A logarithmic current-mode A/D converter with temperature compensation and automatic offset calibration is presented in this paper. It employs a dual-slope, auto-zeroing topology with a 60 dB dynamic range and 300 Hz sampling rate, for capturing the envelope of speech signals in a bionic ear. Fabricated in a 1.5 [mu]m process, the circuit consumes only 1 [mu]W of analog power and another 1 [mu]W of digital power, and can therefore run for over 50 years on just a couple of AA batteries. At the current level of power consumption, we have proven that this design is thermal-noise limited to a 6-bit precision, and higher precision is possible only if we expend more power. As such, it is already useful for cochlear implants, as deaf patients can only discriminate 1 dB out of a 30 dB dynamic range in the auditory nerve bundles. For the purpose of using this circuit in other applications, we conclude with several strategies that can increase the precision without hurting the power consumption.
by Ji-Jon Sit.
S.M.
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Walker, Abby Jewel. "Crossing Oceans with Voices and Ears: Second Dialect Acquisition and Topic-Based Shifting in Production and Perception." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1397802092.
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Cole, Shana L. "When Praise Falls on Deaf Ears: Is the Hedonic Impact of Compliments Muted When it Matters Most?" Ohio : Ohio University, 2009. http://www.ohiolink.edu/etd/view.cgi?ohiou1250713915.
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Richards, Othello Lennox. "When Eyes and Ears Compete: Eye Tracking How Television News Viewers Read and Recall Pull Quote Graphics." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6801.
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This study applied dual processing theory, the theory of working memory, and the theory of cue summation to examine how the video and audio in a television news story interact with or against each other when the story uses pull quote graphics to convey key information to viewers. Using eye-tracking, the study produced visual depictions of exactly what viewers look at on the screen when the words in the reporter's voice track match the text in the pull quote graphic verbatim, when the reporter summarizes the text in the graphic, and when the reporter's voice track ignores the text in the pull quote. The study tested the effect on recall when viewers were presented with these three story conditions—high redundancy, medium redundancy, and low redundancy, respectively. Key findings included the following: first, that stories with low redundancy resulted in lower recall and memory sensitivity scores (a measure of memory strength) than pull quotes that the reporter either summarized or read verbatim on the air. Second, it was found that neither high-redundancy nor medium-redundancy stories were superior or inferior to the other when looking at the effect on recall and memory sensitivity. And finally, in high-, medium-, and low-redundancy conditions, subjects stated that they relied more on the reporter's narration than the pull quote to get information. The study states possible implications for news producers and reporters and suggests future research in the broadcast television news industry.
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Haase, Peter H. "Design of a low power embedded microprocessor for a hands-eyes-ears-free personal navigation and communications system." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2000. http://handle.dtic.mil/100.2/ADA380986.
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Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, June 2000.Thesis advisor: Fouts, Douglas J. "June 2000." Includes bibliographical references (p. 107-108). Also available online.