449 research outputs found

    Degree of Vocal Handicap in Two Age Groups of Individuals

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    A healthy, functional voice is a critical aspect of daily life, allowing the expression of basic needs as well as interaction within an individual’s community. Unfortunately, for many adults the voice declines in later life. The purpose of this study was to investigate how normal vocal aging affects the quality of life of the elderly. Two hundred two adults without voice disorders from two age groups (30-50 and 65-85) completed the Voice Handicap Index. Results indicated that the older group felt a greater degree of vocal handicap than the younger age group [F (1,156) = 4.944, p = 0.028]. Implications of the study for care of the aging voice and areas for further research are discussed

    Rethinking residue, an investigation of pharyngeal residue on flexible endoscopic evaluation of swallowing: the past, present, and future directions

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    This dissertation investigated measures of pharyngeal residue as seen on flexible endoscopic evaluation of swallowing (FEES). Research in this area of deglutology has been stalled due to measurement problems. The particular aims of this project were to compare visual analog scale ratings to categorical ratings of residue on FEES, and to investigate various measurement aspects. METHODS: Speech language pathologists were asked to rate residue from 81 swallows on FEES that demonstrated a wide range of residue severity for thin liquid, applesauce, and cracker boluses. A total of 33 clinicians rated the amount of residue at the time point after the first swallow, twice in a randomized fashion: the first time on a visual analog scale (VAS) and the second time categorically on a five point Likert scale. The results were analyzed for (1) inter/intra-rater agreement, (2) correlations between ratings and residue severity for each rating method, and (3) clusters of ratings to better define the scales and their clinical significance. A total of 2,673 VAS ratings and 2,673 categorical ratings were collected. RESULTS: (1) Both inter- and intra-rater reliability met acceptable levels of agreement, although intra-rater reliability on VAS ratings were slightly higher (r=0.8–0.9) than categorical ratings (k=0.7–0.8). Expert ratings were not significantly different from other clinicians’ ratings for any severity of any of the 3 boluses. (2) Residue ratings fit best on a curvilinear model; a quadratic fit of the data significantly improved the r2 values for each bolus type. (3) An increased residue amount, rated on either the VAS or categorical scale, was significantly associated with worse penetration-aspiration scale scores, but no significant relationship was found between the two methods of residue ratings and measures of quality of life or diet. Novel computerized methods are proposed for future measurement pursuits. CONCLUSION: The results of this dissertation suggest that residue is best measured on a scale with unequal intervals, and clinicians can be reliable in rating overall amount of residue on FEES after the first swallow. Novel computerized measurement approaches are useful building blocks for future research. It is hoped that with better measurement will come better understanding of residue, its risks, and consequences

    Rethinking residue, an investigation of pharyngeal residue on flexible endoscopic evaluation of swallowing: the past, present, and future directions

    Full text link
    This dissertation investigated measures of pharyngeal residue as seen on flexible endoscopic evaluation of swallowing (FEES). Research in this area of deglutology has been stalled due to measurement problems. The particular aims of this project were to compare visual analog scale ratings to categorical ratings of residue on FEES, and to investigate various measurement aspects. METHODS: Speech language pathologists were asked to rate residue from 81 swallows on FEES that demonstrated a wide range of residue severity for thin liquid, applesauce, and cracker boluses. A total of 33 clinicians rated the amount of residue at the time point after the first swallow, twice in a randomized fashion: the first time on a visual analog scale (VAS) and the second time categorically on a five point Likert scale. The results were analyzed for (1) inter/intra-rater agreement, (2) correlations between ratings and residue severity for each rating method, and (3) clusters of ratings to better define the scales and their clinical significance. A total of 2,673 VAS ratings and 2,673 categorical ratings were collected. RESULTS: (1) Both inter- and intra-rater reliability met acceptable levels of agreement, although intra-rater reliability on VAS ratings were slightly higher (r=0.8–0.9) than categorical ratings (k=0.7–0.8). Expert ratings were not significantly different from other clinicians’ ratings for any severity of any of the 3 boluses. (2) Residue ratings fit best on a curvilinear model; a quadratic fit of the data significantly improved the r2 values for each bolus type. (3) An increased residue amount, rated on either the VAS or categorical scale, was significantly associated with worse penetration-aspiration scale scores, but no significant relationship was found between the two methods of residue ratings and measures of quality of life or diet. Novel computerized methods are proposed for future measurement pursuits. CONCLUSION: The results of this dissertation suggest that residue is best measured on a scale with unequal intervals, and clinicians can be reliable in rating overall amount of residue on FEES after the first swallow. Novel computerized measurement approaches are useful building blocks for future research. It is hoped that with better measurement will come better understanding of residue, its risks, and consequences

    Crossing over: examining the challenges of a classically trained female performing music theater repertoire

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    I. Solo Recital: Friday, April 11, 2013, 7:30 p.m., Taylor Theatre. Cendrillon (Jules Massanet) Opera Role. II. Solo Recital: Saturday, February 8, 2014, 7:30 p.m., Recital Hall. "Warum betrübst du dich," "Wilst du dein Herz mir schenken" (Johann Sebastian Bach); Bachianas Brasileiras No. 5 (Hector Villa-Lobos); "Kennst du das Land" (Hugo Wolf); "Kennst du das Land" (John Duke); "Nur wer die Sehnsucht kennt" (Robert Schumann); "Net tolko tot kto znal;" (Pyotr Ilyich Tchaikovsky); "Aime-moi" (Pauline Viardot); "Vaga Luna" (Vincenzo Bellini); "Aragonese" (Gioacchino Rossini); "Befreit," "Ruhe Meine Seele," "Ständchen," "Amor" (Richard Strauss). III. Solo Recital: Thursday, March 5, 2015, 7:30pm., Recital Hall. "Youkali," "J'attends un navire," "Wie lange noch?," "Come up from the Fields, Father" (Kurt Weill); "Tom Sails Away" (Charles Ives); "Le disparu," "Bleuet," "C," "Fêtes galantes" (Francis Poulenc); Ariettes Oubliées (Claude Debussy); Cabaret Songs (Benjamin Britten); "Waldseligkeit," "Selige Nacht," "Hat dich die Liebe berührt" (Joseph Marx). IV. D.M.A. Research Project. CROSSING OVER: EXAMINING THE CHALLENGES OF A CLASSICALLY TRAINED FEMALE PERFORMING MUSIC THEATER REPERTOIRE. This document explores the pedagogy of a classically trained singer as well as that of a music theater performer exploring similarities and differences. Musical examples are referenced throughout. A discussion of style of the megamusical and the 21st century musical provides context. A final chapter on repertoire suitable for bridging the styles provides a reference for the teacher and singer

    Detection of Hate-Speech Tweets Based on Deep Learning: A Review

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    Cybercrime, cyberbullying, and hate speech have all increased in conjunction with the use of the internet and social media. The scope of hate speech knows no bounds or organizational or individual boundaries. This disorder affects many people in diverse ways. It can be harsh, offensive, or discriminating depending on the target's gender, race, political opinions, religious intolerance, nationality, human color, disability, ethnicity, sexual orientation, or status as an immigrant. Authorities and academics are investigating new methods for identifying hate speech on social media platforms like Facebook and Twitter. This study adds to the ongoing discussion about creating safer digital spaces while balancing limiting hate speech and protecting freedom of speech.   Partnerships between researchers, platform developers, and communities are crucial in creating efficient and ethical content moderation systems on Twitter and other social media sites. For this reason, multiple methodologies, models, and algorithms are employed. This study presents a thorough analysis of hate speech in numerous research publications. Each article has been thoroughly examined, including evaluating the algorithms or methodologies used, databases, classification techniques, and the findings achieved.   In addition, comprehensive discussions were held on all the examined papers, explicitly focusing on consuming deep learning techniques to detect hate speech

    Confocal laser imaging in neurosurgery: A comprehensive review of sodium fluorescein-based CONVIVO preclinical and clinical applications.

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    Given the established direct correlation that exists among extent of resection and postoperative survival in brain tumors, obtaining complete resections is of primary importance. Apart from the various technological advancements that have been introduced in current clinical practice, histopathological study still remains the gold-standard for definitive diagnosis. Frozen section analysis still represents the most rapid and used intraoperative histopathological method that allows for an intraoperative differential diagnosis. Nevertheless, such technique owes some intrinsic limitations that limit its overall potential in obtaining real-time diagnosis during surgery. In this context, confocal laser technology has been suggested as a promising method to have near real-time intraoperative histological images in neurosurgery, thanks to the results of various studies performed in other non-neurosurgical fields. Still far to be routinely implemented in current neurosurgical practice, pertinent literature is growing quickly, and various reports have recently demonstrated the utility of this technology in both preclinical and clinical settings in identifying brain tumors, microvasculature, and tumor margins, when coupled to the intravenous administration of sodium fluorescein. Specifically in neurosurgery, among different available devices, the ZEISS CONVIVO system probably boasts the most recent and largest number of experimental studies assessing its usefulness, which has been confirmed for identifying brain tumors, offering a diagnosis and distinguishing between healthy and pathologic tissue, and studying brain vessels. The main objective of this systematic review is to present a state-of-the-art summary on sodium fluorescein-based preclinical and clinical applications of the ZEISS CONVIVO in neurosurgery

    Applications of raman spectroscopy in dentistry part II: Soft tissue analysis

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    Raman spectroscopy is rapidly moving from an experimental technique for the analysis of biological molecules to a tool for the real-time clinical diagnosis and in situ evaluation of the oral tissue in medical and dental research. The purpose of this study is to identify various applications of Raman spectroscopy, to evaluate the contemporary status and to explore future directions in the field of dentistry. Several in-depth applications are presented to illustrate Raman spectroscopy in early diagnosis of soft tissue abnormalities. Raman spectroscopy allows to analyze histological and biochemical composition of biological tissues. The technique not only demonstrates its role in the disclosure of dysplasia and malignancy but also in performing guided biopsies, diagnosing sialoliths, and assessment of surgical margins. Raman spectroscopy is used to identify the molecular structures and its components to give substantial information about the chemical structure properties of these molecules. In this paper, we acquaint the utilization of Raman spectroscopy in analyzing the soft tissues in relation to dentistry

    Role of Narrow Band Imaging in predicting the malignant potential of laryngeal structural lesions in subjects presenting with hoarseness for more than three weeks in comparison with histopathological examination in a Tertiary Care centre

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    OBJECTIVES: To categorize laryngeal structural lesions based on Narrow Band Imaging(NBI) into either benign or malignant lesions, based on the intraepithelial papillary capillary loop pattern [IPCL] and to analyse the predictability of their malignant potential with respect to Histopathological examination (HPE). METHODS: Two hundred adult subjects who came to OPD with voice change for more than three weeks underwent NBI after informed consent. Those who had structural lesions underwent HPE. The NBI images were independently analysed by four observers and their results were compared with HPE. RESULTS: Out of the two hundred subjects, one hundred and sixty eight of them had structural lesions. Out of them eighty four underwent histopathological examination. These results were compared with the IPCL patterns observed individually by four observers. The sensitivity varied between 53.6% to 72.4%, the specificity varied between 72% to 85.4%, the positive likelihood ratio was 2.59 to 4.4, and thenegative likelihood ratio was 0.372 to 0.557. The diagnostic odd’s ratio was 5.7 to 11.1. The Receiver Operating Characteristics curve for IPCL showed area under the curve for the four observers varied between 0.72 to 0.83 suggestingreasonable differentiating ability. Scores 1-3 of the IPCL pattern have a good sensitivity to rule out malignancy while the scores of IPCL patterns 5a to 5c have good specificityto rule in malignancy. Scores in-between need additional diagnostic tests or clinical expertise to make a management decision. CONCLUSION: Narrow Band Imaging is a novel diagnostic tool which enabled us to differentiate benign from malignant lesions and to diagnose potentially malignant lesions based on Intraepithelial Papillary Capillary Loop (IPCL) patterns in laryngeal lesions

    Models and analysis of vocal emissions for biomedical applications: 5th International Workshop: December 13-15, 2007, Firenze, Italy

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    The MAVEBA Workshop proceedings, held on a biannual basis, collect the scientific papers presented both as oral and poster contributions, during the conference. The main subjects are: development of theoretical and mechanical models as an aid to the study of main phonatory dysfunctions, as well as the biomedical engineering methods for the analysis of voice signals and images, as a support to clinical diagnosis and classification of vocal pathologies. The Workshop has the sponsorship of: Ente Cassa Risparmio di Firenze, COST Action 2103, Biomedical Signal Processing and Control Journal (Elsevier Eds.), IEEE Biomedical Engineering Soc. Special Issues of International Journals have been, and will be, published, collecting selected papers from the conference
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