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Full-Text Articles in Medicine and Health Sciences

The Efficacy Of An Actor-Emotion Technique On Changing Communication Attitude In Children Who Stutter: A Treatment Outcome Study, Tiffany Marie Scavo Jan 2007

The Efficacy Of An Actor-Emotion Technique On Changing Communication Attitude In Children Who Stutter: A Treatment Outcome Study, Tiffany Marie Scavo

LSU Master's Theses

The purpose of the present study was to test the efficacy of an actor-emotion strategy approach on changing communication attitudes in an adolescent child who stutters. The participant for this study was an eleven-year, ten-month old male attending a public middle school in Baton Rouge, Louisiana who presented with a severe fluency disorder. The participant attended group sessions Monday-Thursday from 9:00-12:00 for 6 weeks as part of a fluency day camp. The study used a worksheet-based measure to evaluate emotionality on a daily basis. Using an ABA withdrawal design, two analyses were completed. The first analysis examined the stability or …


Prevalence Of Family History Of Speech-Language Impairment In An African American Sample, Tricia Mccully Rodrigue Jan 2007

Prevalence Of Family History Of Speech-Language Impairment In An African American Sample, Tricia Mccully Rodrigue

LSU Master's Theses

The purpose of this study was to examine the prevalence of a positive family history of speech and/or language impairments in an African American sample. The first phase of the study used questionnaires from the primary caregivers of 161 children. The questionnaires allowed for an examination of family history as a function of a child’s socioeconomic level (+/- high school level of maternal education), educational placement (+/- receipt of services by a speech language clinician), and clinical status (+/- profile consistent with a diagnosis of SLI). The second phase of the study included interviews that were collected from 17 families …


The Role Of Toll-Like Receptor 7 In The Neuropathogenesis Of Retrovirus Infection In Neonates, Stephanie Diane Lewis Jan 2007

The Role Of Toll-Like Receptor 7 In The Neuropathogenesis Of Retrovirus Infection In Neonates, Stephanie Diane Lewis

LSU Master's Theses

Viral infections of the central nervous system (CNS) in infants are rare; however, they are associated with high morbidity and mortality rates. These virus infections often induce strong innate immune responses in the brain including: the production of cytokines and chemokines, the activation of astrocytes and microglia and the recruitment of macrophages. Innate immune responses are often initiated by toll-like receptors (TLR). Several studies have demonstrated that toll-like receptor 7 (TLR7) can be stimulated by single-stranded RNA from multiple viruses. In the current study, we examined the mechanism by which TLR7 contributes to neuroinflammation in the neonatal brain using a …


Expectation In Visual Symbolic Processing Of Environmental Symbols In People With Fluent Aphasia, Amanda Stead Jan 2007

Expectation In Visual Symbolic Processing Of Environmental Symbols In People With Fluent Aphasia, Amanda Stead

LSU Master's Theses

The purpose of this study was to examine aspects of visual symbolic processing in those individuals with fluent aphasia, and how it compares to that of their lexical ability. Two groups of participants were examined: a group with fluent aphasia, and a group of non-neurologically damaged controls. Participants were administered four computer based expectation tasks, two of which were symbolic, and two which were lexical. Each task contained a simple and a complex level. Participants were required to determine if the final stimulus, within a set of four, was congruent or incongruent. The measures taken included both reaction time and …


Characterization Of A Virulence Related Hypothetical Protein In Edwardsiella Ictaluri, Ildiko Katalin Polyak Jan 2007

Characterization Of A Virulence Related Hypothetical Protein In Edwardsiella Ictaluri, Ildiko Katalin Polyak

LSU Master's Theses

Although the biochemical characterization of E. ictaluri, the subsequent disease progression of enteric septicemia of catfish (ESC), and the associated pathologic lesions are well characterized, the mechanism of invasion of E. ictaluri into a susceptible host is poorly understood. Identification and confirmation of virulence factors and associated genes of E. ictaluri is crucial to elucidating the pathogenesis of this important disease. A signature tagged mutagenesis (STM) study conducted by Thune et al. (2006) identified 50 E. ictaluri clones with transposon insertions in genes potentially involved in pathogenesis. A specific STM mutant, 233PR, carrying a transposon insertion in a gene encoding …


Effects Of The Menstrual Cycle On The Vibratory Characteristics Of The Vocal Folds, Aimee Michelle Bonnette Jan 2007

Effects Of The Menstrual Cycle On The Vibratory Characteristics Of The Vocal Folds, Aimee Michelle Bonnette

LSU Master's Theses

The purpose of this study was to obtain preliminary data on several factors that may influence the vibratory patterns of the vocal folds in addition to the hormonal fluctuations present during the menstrual cycle. These factors included patient reports of severity of reflux symptoms, severity of premenstrual symptoms, and severity of negative vocal hygiene behaviors prior to each evaluation. Ten subjects who did not experience complaints of their voice participated in the study. Data from four subjects who were not on birth control and four on birth control were analyzed for the first cycle, which included self-perception, acoustic analysis, and …


Influence Of Tumor Necrosis Factor-Alpha And Minocycline On Microglia And Macrophage Activation During Polytropic Retrovirus Infection, Meryll E. Corbin Jan 2007

Influence Of Tumor Necrosis Factor-Alpha And Minocycline On Microglia And Macrophage Activation During Polytropic Retrovirus Infection, Meryll E. Corbin

LSU Master's Theses

Microglia/macrophage activation has been associated with the pathogenesis of various neurological diseases including human immunodeficiency virus encephalitis, transmissible spongiform encephalitis, and Alzheimer's disease (AD). In vitro studies have indicated a role for TNFα in activating these cells which leads to their migration, proliferation, and secretion of proinflammatory cytokines and chemokines that may potentially damage brain tissue. In the current study, we analyzed the phenotype of microglia and macrophages enriched from wild type and TNFα deficient mice infected with a neurovirulent murine retrovirus. Although TNF receptors CD120a and CD120b were expressed on both microglia and macrophage population, unaltered by either retrovirus …


Expectation In Auditory Processing Of Environmental Sounds In People With Fluent Aphasia, Meghan Evelyn Collins Jan 2007

Expectation In Auditory Processing Of Environmental Sounds In People With Fluent Aphasia, Meghan Evelyn Collins

LSU Master's Theses

The purpose of this study was to examine the integrity of the nonverbal auditory system in subjects with fluent aphasia, and determine the relative preservation of the nonverbal auditory system in comparison to the lexical system. This was attempted through the task of expectation, a high level processing skill. Two groups of participants were examined: a group with fluent aphasia, and a group of non-neurologically damaged individuals. Participants were administered two nonverbal auditory conditions devoid of lexical information, a simple condition and a complex condition in which they were required to determine if the last sound heard in a sequence …


Carprofen Compromises The Integrity And Barrier Function Of The Colonic Mucosa Of The Dog, Catherine Alix Briere Jan 2007

Carprofen Compromises The Integrity And Barrier Function Of The Colonic Mucosa Of The Dog, Catherine Alix Briere

LSU Master's Theses

Effects of carprofen on colon of dog have not been investigated. Objectives 1) Measure conductance and permeability to mannitol of transverse, proximal descending and distal descending colonic mucosa of dog. 2) Measure conductance and permeability to mannitol of colonic mucosa of dog in presence of carprofen. Design In vitro experimental - nested, randomized block design Animals Colonic mucosa from 6 (objective 1) and 7 (objective 2) mature mixed-breed dogs. Methods Objective 1) Control - Three sections of mucosa from each region of colon were mounted in Ussing chamber units. Conductance was calculated every 15 min for 240 min. Flux of …


Depletion Of 32-Kbp Circular Plasmids From Borrelia Burgdorferi, Amanda Paige Derouen Polito Jan 2007

Depletion Of 32-Kbp Circular Plasmids From Borrelia Burgdorferi, Amanda Paige Derouen Polito

LSU Master's Theses

The Lyme disease spirochete Borrelia burgdorferi has a very unusual genome composed of one linear chromosome and up to 21 linear and circular plasmids. Several plasmids are known to be important either for mammalian infection or tick colonization. A single spirochete harbors up to 7 different cp32 plasmids; however, nothing is known about their role in mammalian infection. The plasmids in this family are well maintained during in vitro cultivation, making it difficult to study their functions. To effectively deplete the plasmids, an 8kbp fragment containing essential elements for replication and partitioning in B. burgdorferi was amplified from one of …


The Clinical Utility Of Mlu And Ipsyn For Aae-Speaking Children, Emily Lee Jones Jan 2007

The Clinical Utility Of Mlu And Ipsyn For Aae-Speaking Children, Emily Lee Jones

LSU Master's Theses

The purpose of this study was to examine the clinical utility of two assessment measures for one group of nonstandard English dialect speakers, that of African-American English- (AAE) speaking children. The measures were mean length of utterance (MLU) and Index of Productive Syntax (IPSyn). The clinical utility of these measures was examined by comparing MLU and IPSyn values of three different groups of AAE speakers to determine if these measures are influenced by a child’s socio-economic status, dialect status, and/or clinical language status. An item analysis was also completed for IPSyn to determine if the items on this tool are …


Rate Change Effects On Acoustic Duration Measures On An Adolescent Who Stutters, Valerie Jean Courville Jan 2007

Rate Change Effects On Acoustic Duration Measures On An Adolescent Who Stutters, Valerie Jean Courville

LSU Master's Theses

The purpose of this study was to determine if reduced rate techniques have an effect on speech motor coordination of an adolescent. A literature review revealed that a reduced rate technique consistently promoted more fluent speech; however, the cause of that increase in fluency is not known. This study proposed three specific questions to determine if there was a shortening of the /s/ phoneme in clustered contexts when compared to singletons, if reducing the rate would cause the adolescent to produce more adult-like shortening patterns, and if the reduced rate technique caused a decrease in stuttering events. One eleven year …


Evaluating The Effect Of Two Commercial Antimicrobial Products On Salmonella Spp. In The Aquatic Habitat Of The Red-Eared Slider Turtle (Trachemys Scripta Elegans), Trevor Theadore Zachariah Jan 2007

Evaluating The Effect Of Two Commercial Antimicrobial Products On Salmonella Spp. In The Aquatic Habitat Of The Red-Eared Slider Turtle (Trachemys Scripta Elegans), Trevor Theadore Zachariah

LSU Master's Theses

Turtle-associated salmonellosis was recognized as a public health concern in the 1960’s, particularly due to an increase in the incidence of disease among children. In response to the public health threat, the United States Food and Drug Administration (FDA) implemented regulations in 1975 restricting the sale of turtle eggs and turtles with a carapace length less than 10.2 cm. Since that time, attempts to eliminate Salmonella from turtles using antibiotics have been unsuccessful and lead to antibiotic resistant strains of Salmonella on turtle farms. Recent work has focused on identifying non-antibiotic products to suppress or eliminate Salmonella and reverse the …