Digital Commons Network^™

Ridge Preservation Comparing The Clinical And Histologic Healing Of A Mineralized Particulate Allograft With A Nonporous Ptfe Membrane Vs. Mineralized Particulate Xenograft With A Collagen Plug Membrane., Jason A. Witonsky

Electronic Theses and Dissertations

Aim. To compare two techniques of ridge preservation using a cancellous mineralized particulate xenograft plus a collagen plug to a cortical mineralized particulate allograft plus a PTFE membrane using ridge dimension data to assess the outcome. Methods. Twenty-eight total patients were seen in the Graduate Periodontics Clinic at the University of Louisville School of Dentistry. Fourteen positive controls received a mineralized particulate xenograft (0.25 to 1.00 mm) covered by a collagen plug using a full-thickness flap technique (Plug group). Fourteen test patients received an intrasocket mineralized cortical particulate allograft (500 to 800 µm) covered with a nonporous PTFE membrane also …

Shape Analysis Of The Corpus Callosum Of Autistic And Normal Subjects In Neuroimaging., Ahmed Aly Farag

Electronic Theses and Dissertations

Early detection of human disease in today’s society can have an enormous impact on the severity of the disease that is manifested. Disease such as Autism and Dyslexia, which have no current cure or proven mechanism as to how they develop, can often have an adverse physical and physiological impact on the lifestyle of a human being. Although these disease are not fully curable, the severity handicaps that accompany them can be significantly reduced with the proper therapy, and thus the earlier that the disease is detected the faster therapy can be administered. The research in this thesis is an …

Viability For Oxidation Of H2s Gas Using Low Concentration Solutions Of H2o2 Peroxide In Applications For Biogas Purification., Stewart Walter Mccollam 1985-

Electronic Theses and Dissertations

This thesis is an examination of the viability of a low pH hydrogen peroxide scrubbing process for removing H 2 S acid gas present in typical biogas streams generated from dairy farm anaerobic digesters. Biogas ranges in composition based on the feedstock manure used in the anaerobic digestion process but typically consists of methane (50-60%), carbon dioxide (40-50%), and trace amounts of hydrogen sulfide and ammonia. Hydrogen sulfide is of prime concern because it is an odorous, poisonous, and highly corrosive gas which can impede use in power generation applications for biogas such as boilers, internal combustion engines, microturbines, fuel …

Correlates Of Intake And Disposition Decisions By Child Protective Services Professionals., Lisa Michele Johnson

Electronic Theses and Dissertations

This study examined intake and post-investigative disposition decision making among professionals engaged in child protective services to understand disproportionality and disparities in the child welfare system. Using child welfare, decision making, and attribution theories as a framework, a multivariate 2x2x2 factorial vignette design was used to examine intake and post-investigative disposition decision making among 400 child protective caseworkers and supervisors employed in a Midwestern state. Data were gathered through an online self-administered survey. Among the key variables of interest--race, socio-economic status, and family structure--only the family's socio-economic status was found to influence the intake decision but none were associated with …

Integration Of The Avoidance Cycle With The Schema Enmeshment Model Of Pain : Relationships With Quality Of Life And Disability In Chronic, Nonmalignant Pain., Jeffrey A. Meyer

Electronic Theses and Dissertations

Persons living with chronic pain encounter a host of physical and psychosocial problems resulting in a loss of quality of life and increased disability. The construct of avoidance has been proposed as a mechanism by which these changes in functioning occur. This study explored the Acceptance and Commitment Therapy (ACT) construct of experiential avoidance and its conceptualization within the ACT model of avoidance, the Cycle of Avoidance. The model is introduced as a framework for integrating an existing model of chronic pain and avoidance, the Schema Enmeshment Model of Pain (SEMP), thus providing a more comprehensive perspective. The study used …

A Hybrid Genetic-Greedy Approach To The Skills Management Problem., Daniel Grieshaber 1986-

Electronic Theses and Dissertations

The Naval Surface Warfare Center wishes to create a task assignment schedule with a minimal training cost for workers to raise their skills to the required levels. As the number of workers, skills, and tasks increase, the problem quickly becomes too large to solve through brute force. Already several greedy heuristics have been produced, though their performance degrades for larger data sets. As Genetic Algorithms (GA) are effective for large combinatorial problems, their application to the task assignment problem may prove successful. The innovation in applying a GA to this problem is the utilization of existing greedy heuristics in the …

Hilltop Archaeology: Ceremony And Ritual At The Site Of Cerro Santa Rita, Chao Valley, Peru, Richard A. Busch

Electronic Theses and Dissertations

The Site of Cerro Santa Rita is located in the mid-valley region of the Chao Valley on the North Cast of Peru. Occupied by people during the Gallinazo, Moche and Chimú time periods, Cerro Santa Rita fulfilled a role similar to that of a huaca, or temple. The people of pre-Hispanic Peru were deep set in their traditions, many of these traditions are still practiced by Peruvians today. The traditions of ancestor veneration and feasting are no exceptions to this. Cerro Santa Rita was a burial complex that had plazas and courtyards associated with the tombs of ancestors. Not …

Marginality And Coping: A Communal Contextual Narrative Approach To Pastoral Care With Korean American Christians, Jaesang Lyu

Electronic Theses and Dissertations

Focusing on Korean American experiences of racism, sexism, and intergenerational conflicts related to the acculturation process, this dissertation examines the social reality of marginality and constructs a communal contextual narrative approach to pastoral care. Current approaches to pastoral care in the Korean American church encourage a deferring style of religious coping that maintains the status quo—the internalized status of marginality—without activating self agency for the fulfillment of one’s own selfhood within the communal life of religious communities. A communally grounded sense of self agency is described in terms of three aspects of Korean indigenous culture: 1) uri (we-ness), 2) jeong …

Gene-Environment Interactions In Attention Deficit Hyperactivity Disorder, Holly Donovan Barnard

Electronic Theses and Dissertations

The overall goal of this project is to advance our understanding of the multifactorial etiology of Attention Deficit Hyperactivity Disorder (ADHD) by testing a diathesis-stress model of gene x environment (g x e) interactions. Although the literature increasingly supports g x e interactions in the manifestation of ADHD, few studies have investigated multiple genetic and environmental risk factors, included direct tests of gene - environment correlations (rG-Es), explored the specificity of interactions to symptom dimensions, or attempted to minimize comparisons. Therefore, utilizing both within-family (FBAT/PBAT) and case-control methodology, this study sought to (1) explore main effects of polymorphisms in the …

Physical Effects Of The Respiratory Syncytial Virus On Human Cells., Adam Pfendt 1985-

Electronic Theses and Dissertations

Respiratory syncytial virus is the leading cause of lower respiratory tract infection in infants and currently lacks an effective vaccine or treatment beyond symptom relief. The atomic force microscope is particularly well suited for imaging biological samples including DNA, proteins, cells, and viral activity. Analyzing fixed HEp-2 cells with the AFM after infection and incubation with RSV for periods up to 24 hrs reveals several physical changes that may lead to a better understanding of the viral effects on living cells. Comparing cells fixed with methanol or glutaraldehyde and osmium tetroxide suggests substantial volume losses in the cells regardless of …

A Comparative Study Of High School Academic Paths, Grade Point Averages, And Act Composite Scores As Predictors Of Success At Walters State Community College., Jill C. Reuschel

Electronic Theses and Dissertations

With an overwhelming number of students attempting to enter college after high school, the competitive nature of college admissions continues to grow. Colleges and universities are attempting to find the appropriate means to adequately predict collegiate success. Common methods of this prediction have come from a variety of sources most of which are the use of high school performance and standardized college admissions testing. Walters State Community College was chosen for this study because of its open door admission policy that allows for variability in high school academic paths as well as grade point averages and ACT scores students earned …

Molecular Mechanism Of Ferricsiderophore Transport Via The Outer Membrane Receptor Fhua In Escherichia Coli., Jennifer K. Cooke

Electronic Theses and Dissertations

Iron is essential for life and growth in most organisms. Although it is abundant, iron exists mostly as insoluble iron-oxyhydroxide. Bacteria secrete siderophores to chelate iron and transport it into the cell via specific outer membrane receptors. The FhuA receptor protein transports ferrichrome, a siderophore produced by Ustilago sphaerogena. We determined the binding affinity of variants from the conserved 'lock region' of FhuA and also created and characterized variants of the highly conserved R452 to determine its role in ferrichrome transport. We hypothesize that during transport the plug domain of FhuA does not leave the barrel; rather it undergoes …

Eyewitness Recall Of Noncriminal Events: An Examination Of Demographic Characteristics With A Selected Population., Jessica R. Vaneaton

Electronic Theses and Dissertations

The purpose of this study was to examine differences of recalled events from a selected university student population. Eyewitness testimony is frequently used to convict defendants each year. Many of these convictions are based solely on eyewitness accounts. While much has been written on the reliability of eyewitness testimony, little is known about demographic characteristic differences that may exist. A videotaped event was shown to a sample of college students who were then asked to complete a questionnaire based on what they watched. There were significant differences found in the respondents‟ accuracy in recalling events of the video according to …

A Case Study Of Jemicy School To Determine Practices Conducive To Developing Creative Potential Of Dyslexic Children., Brenda Sue Graves

Electronic Theses and Dissertations

Approximately 15% to 20% of Americans struggle with learning disabilities. The National Institutes of Health reported that 60% to 80% of those with learning disabilities have problems with reading and language skills (as cited in International Dyslexia Association, 2000). Dyslexia is a specific learning disability and according to Moats (2008), it is more common than any other kind of learning disability. Dyslexia varies in degrees of severity. About 4% of those diagnosed with dyslexia are severely dyslexic. This includes some 375,000 school children (Dyslexia Action, 2006). Although dyslexia certainly causes difficulties for children, many of them are bright and capable. …

John Dewey, Historiography, And The Practice Of History., Seth J. Bartee

Electronic Theses and Dissertations

John Dewey was America's foremost authority on many of the critical issues in the twentieth century. Dewey dedicated his professional career as an expert on the major branches of philosophy.

A neglected aspect of Dewey's philosophy is his writings on historiography, the philosophy of history, and his influence on American historians. Dewey affected several generations of historians from the Progressive historians to the practical realists of today.

This study evaluates Dewey's pragmatism as a legitimate strain in American historiography. James Harvey Robinson and Charles Beard claimed Dewey as an influence. Later historians such as Richard Hofstadter and Joyce Appleby insist …

Secondary Analysis Of Diabetes And Psychological Distress In American Indian Women From The California Health Interview Survey (Chis)., Audry Marie Greenwell

Electronic Theses and Dissertations

Since European settlers arrived to the United States (U.S.), American Indians (AI) have been separate and unequal members of society. After a long history of discrimination, ethnocide, genocide, and distrust, the AI have become a population with severe disparities, having the highest rates of diabetes, depression, suicide, tuberculosis, and alcoholism than any other minority or majority population in the U.S. The author's purpose for conducting this study was to explore a possible relationship between depression or psychological distress and diabetes in AI women.

AI women are the most under studied group in the country; therefore, a secondary analysis of the …

Durkheim's Refutation Of Spencerian Methodological Individualism: A Critical Evaluation., Matthew Bryan Smith

Electronic Theses and Dissertations

The famed French classical social theorist Emile Durkheim's academic reputation is based largely on his critical rejection of the British utilitarian tradition and specifically the writings of the classical British sociologist Herbert Spencer. In this thesis I critically evaluate Durkheim's critique of Herbert Spencer's methodological individualism. It is found that while select Durkheimian claims merit continued allegiance, his broader critique of Spencer's methodological individualism must be viewed as logically and empirically deficient. In conclusion I examine the implications for Durkheimian sociology and the broader social theoretical enterprise directed at analyzing and conceptualizing the nature of sociality and the social bond.

Development Of A Reservoir Embayment Characterization Process To Prioritize Water Quality Improvement., Terry Shannon O'Quinn

Electronic Theses and Dissertations

To simplify water quality improvement in reservoirs, it has been suggested that efforts should be focused on smaller and more manageable units such as reservoir embayment areas. Embayments are prime locations to locate marinas, parks, beaches, and residential homes. Current data and information on reservoir embayments in Tennessee was assembled into a GIS-based database. Embayments of 11 main reservoirs were mapped and digitized in ArcGIS. Initial characterization criteria include watershed size, embayment area-watershed ratio, maximum residence time, and stream influence on embayments. The characterization process was then applied to the mapped reservoir embayments in Tennessee to identify and prioritize embayments …

Nectin-1 Is Degraded In Chlamydia Trachomatis-Infected Genital Epithelial Cells And Is Required For Herpes Simplex Virus Co-Infection-Induced C. Trachomatis Persistence., Jingru Sun

Electronic Theses and Dissertations

The obligate intracellular bacterium Chlamydia trachomatis is the most common bacterial STD agent in the US. This bacterium has a unique biphasic developmental cycle in which the infectious elementary body (EB) infects a host mucosal epithelial cell and differentiates into the replicative form (the reticulate body or RB) within a modified vacuole called an inclusion. The RB later divides and develops back into an EB and is released, perpetuating the infectious cycle. When developing chlamydiae are exposed to unfavorable environmental conditions, they deviate from the normal developmental cycle into a non-infectious but viable state termed persistence. Previous data from our …

A Quantitative Study Of School Characteristics That Impact Student Achievement On State Assessments And Those Assessments' Associations To Act Scores In Tennessee., Phillip L. Swanson

Electronic Theses and Dissertations

The purpose of this study was to determine whether a significant relationship exists between particular home, student, and school characteristics and ACT scores and the relationship these characteristics subsequently have with the TVAAS grades assigned to each high school's ACT scores. These home, student, and school variables were socioeconomic status, percentage of minority, graduation rate, per-pupil expenditure, Gateway English II scores, and Gateway Algebra I scores. By looking at these variables and the influence they hold on the education of students, I sought to ascertain the fairness that is present when schools and districts are given grades through the TVAAS …

Denying Queer Realities: Scripting The Normative Homo., Porscha Rae Yount

Electronic Theses and Dissertations

Queer theorists and sociologists have argued that the lesbian, gay, bisexual, and transgender (LGBT) movement further marginalizes some queer individuals in the pursuit of legitimacy from the dominant heterosexist culture. This study uses qualitative content analysis to examine the Web sites of four social movement organizations that claim to work for the LGBT community (Human Rights Campaign, Lambda Legal Defense Fund, National Center for Lesbian Rights, and the National Gay and Lesbian Task Force). In this thesis, I argue that these organizations participate in scripting the normative homo ideal while distancing themselves from problematic identities that challenge normative, natural frameworks …

Salamanders Of The Mio-Pliocene Gray Fossil Site, Washington County, Tennessee., Grant Stanley Boardman

Electronic Theses and Dissertations

Screening efforts at the Gray Fossil Site, Washington County, Tennessee, have yielded a unique and diverse salamander fauna for the southern Appalachian Mio-Pliocene; including at least five taxa from three modern families (Ambystomatidae, Plethodontidae, and Salamandridae) supporting the woodland-pond interpretation of the site. All specimens represent the earliest record of their respective families in the Appalachian Mountains; with the Notophthalmus sp. vertebrae being the only Mio-Pliocene skeletal fossil known for the family Salamandridae in North America. Three types of plethodontid salamander are present, with one type representing the earliest known desmognathine. The desmognathine fossils lend credence to the 'Appalachian' origin …

Schema., David B. Mazure

Electronic Theses and Dissertations

This thesis supports the Master of Fine Arts exhibition at the Slocumb Galleries in Ball Hall at East Tennessee State University, from February 23^rd through February 27^th 2009. The exhibition is comprised of eight graphite drawings, one ink drawing, eight vinyl prints, two hundred sixty lenticular prints, over fifty digital inkjet prints, and one video installation. The exhibition presents the artist's exploration into using drawings and prints as installation as they relate to quantum physics and universal scale. Subjects discussed, on a project-by-project basis, include thought, ideas, methods, influences, and process by which the work in the exhibition …

Speech Perception And The Mcgurk Effect : A Cross Cultural Study Using Event-Related Potentials., Jia Wu

Electronic Theses and Dissertations

Previous research has indicated the important role of visual information in the speech perception process. These studies have elucidated the areas of the brain involved in the processing of audiovisual stimuli. The McGurk effect, an audiovisual illusion, has been demonstrated to be a useful tool in the study of audiovisual integration. Brain imaging research suggests that the McGurk effect is modulated by brain structures in the Superior Temporal Gyrus, Supplemental Temporal Cortex and Broadman area 41. Electrophysiological studies suggest that the McGurk effect generates a different brainwave than the standard audiovisual congruent condition in frontal, central and parietal regions among …

Implication Of Tissue Response To Ischemia Gradient In Rabbit Ear On Chronic Wound Healing., Abhijit Prakash Mahalingashetty 1985-

Electronic Theses and Dissertations

Ventral ear skin of the rabbit is a commonly used model for wound/ulcer studies; however the gradient effects of vascular ligation on epidermal stability has not been reported. In this study ischemic effects were studied after ligation of the central feeding vessel in one ear, while the other ear served as control. Three or six days later 9 full-thickness skin circular punches (6 mm, numbered 1-9) were removed from both ears, equidistant from each other with a proximal-distal and medial-lateral orientation. Samples were prepared for light microscopy and immunohistochemistry examinations. Quantitative analysis showed that normal and ischemic tissue differ minimally …

Electrochemically Mediated Charge Transfer Effects On Single-Walled Carbon Nanotubes., Buddika Ka. Abeyweera 1980-

Electronic Theses and Dissertations

This thesis is based on experimental work on electrochemically mediated charge transfer effects on Single-walled carbon nanotube bundles. The study of these effects are very important towards understanding the sensitivity of gases on nanostructures like single-walled carbon nanotubes. Chapter one covers the introduction and overview of carbon nanostructures including single-walled carbon nanotubes. Chapter two covers the experimental techniques involving sample preparation, experimental setup and data acquisition. Chapter three consists of Results and the Discussions explaining the mechanisms based on charge transfer mechanism. In the final chapter, implications and the importance of the study are explained. Single-walled carbon nanotubes are used …

The Study Of Predictive Factors Of Reading In Low-Performing Readers In An Urban Setting., Reginald L. Caldwell

Electronic Theses and Dissertations

The middle school years are most difficult because students now have to use reading to learn in all content areas. Low-performing students who daily face reading difficulties in school often feel helpless in their desire to become better readers and may develop poor self efficacy toward reading. Furthermore, these students may experience reading failure at a higher rate than their same age middle school peers. The current study examined two reading programs, Read 180 and Corrective Reading , and the impact they have on the self-efficacy of 216 middle school students. The results provided information regarding what factors of self-efficacy …

Feeding Difficulties In Young Children With And Without Autism., Ashley N. Pugh

Electronic Theses and Dissertations

Although not a criteria for diagnosis of autism, feeding difficulties are commonly found in this population. The purpose of this thesis is to provide further insight in the area of autism and feeding. Parents of children with and without autism were recruited from the Weisskopf Child Evaluation Center and from their home. Participants were asked to complete a series of questionnaires regarding their child's eating habits. Results found parents of both groups indicated their child exhibits oral sensory processing differences, with the autism group indicating additional sensory differences across a range of categories. Results also found parents expressed concerns for …

The Exploration Of Color Theory In Museum Education Using Works Found In The J. B. Speed Museum's Collection., Jonathan Ratliff 1986-

Electronic Theses and Dissertations

Color is an important part of art and life, which can be utilized by the museum educator to engage visitors with the art. For the museum educator, development of appropriate programs and activities to meet the needs of their audience is a central component of their responsibilities; therefore employment of important characteristics of art, such as color, to accomplish these goals is important. To demonstrate how an educator can utilize color, I have developed a tour using the Speed Art Museum's collection. Although it is written specifically for one collection, the ideas can be translated to other institutions. Since school …

Black Female Journalists : Experiences Of Racism, Sexism And Classism In The Newsroom., Amber Genile Duke 1981-

Electronic Theses and Dissertations

This thesis analyzes the experiences and challenges Black female journalists encounter in the newsroom. Using oral history interviews and writings from Black female journalists about their experiences, the researcher identifies a unique set of barriers these women faced in assignments and career advancement. Black Feminist theoretical perspectives aide in understanding how the interlocking oppressions of racism, sexism and classism impacted Black female journalists on three distinct levels: personal level, group or community level and institutional level. The findings reveal Black Female journalists' personal experiences with discrimination propelled them into careers in the media. While on the job, many of them …