Digital Commons Network^™

Flexural And Tensile Properties Of Thin, Very High-Strength, Fiber-Reinforced Concrete Panels, Michael Jason Roth

Theses and Dissertations

This research was conducted to characterize the flexural and tensile characteristics of thin, very high-strength, discontinuously reinforced concrete panels developed by the U.S. Army Engineer Research and Development Center. Panels were produced from a unique blend of cementitous material and fiberglass reinforcing fibers, achieving compressive strength and fracture toughness levels that far exceeded that of typical concrete.The research program included third-point flexural experiments, novel direct tension experiments, implementation of micromechanically based analytical models, and development of finite element numerical models. The experimental, analytical, and numerical efforts were used conjunctively to determine parameters such as elastic modulus, first-crack strength, post-crack modulus …

Watermarking With Wavelet Transforms, Kristen Michelle Parker

Theses and Dissertations

Digital watermarking algorithms based on wavelet transforms provide increased performance and perceptual quality. This thesis proposes two wavelet-based schemes: one robust and one fragile. Robust watermarks should withstand attacks, such as compression, while maintaining the data integrity. The first approach presented is an algorithm which implements image watermarking in the domain of an overcomplete, or redundant, wavelet transform. Alternately, fragile watermarks are intended for use in applications wherein any loss of image quality is not acceptable. In the second approach presented, data embedding in the domain of an integer wavelet transform is considered. An algorithm is proposed that uses a …

Evaluation Of A Low Profile Cascade Aerator, Chukwukelue Kenneth Monwuba

Theses and Dissertations

The aeration potential of a low profile cascade aerator was studied under varying operational conditions in accordance with the ASCE Standard for Measurement of Oxygen Transfer in Clean Water [ASCE 2-06, 2007]. Operational parameters delved into included the channel slope (2.50, 4.50 and 6.50); water flow rate (465.75 L/min.m (37.5 gpm/ft), 931.45 L/min.m (75 gpm/ft) and 1397.20 L/min.m (112.5 gpm/ft)); and weir geometry (rectangular-shaped, inverted T-shaped, W-shaped and inverted Cross shaped weir). The oxygen transfer coefficient, KLa, was derived by use of a FORTRAN-based nonlinear regression analysis computer program and served to assess the effectiveness of various combinations of operational …

Laser Induced Breakdown Spectroscopy: Investigation Of Line Profiles, Slurries And Artifical [Sic] Neural Network Prediction, Seong Yong Oh

Theses and Dissertations

Laser induced breakdown spectroscopy (LIBS) was tested to examine its applicability to remote and in suit analysis in inaccessible situation. Two types of liquid sample (slurry) prepared for simulating vitrification of liquid hazardous wastes was tested. In situ analysis ability makes the LIBS technique practical for analysis of the slurry samples during vitrification, which is in inaccessible situation. For the first slurry sample, two slurry circulation systems were devised to overcome major technical problems associated with LIBS measurements of slurry samples - namely sedimentation and change in the lens-to-sample distance (L.T.S.D) during measurement. The second slurry sample contained less water …

Lb_Migrate: A Dynamic Load Balancing Library For Scientific Applications, Rohit Kailash Chaube

Theses and Dissertations

Parallel and distributed environments are used to solve large scientific and engineering problems that often are irregular and data parallel. However, performance of many parallel applications is affected by computation overheads, communication time and load imbalance. Among these factors, load imbalance is caused by the irregular nature of the problem, its algorithm, the difference in processor characteristics, and runtime loads. A number of applications achieve load balancing by one-time assignment of task. However, a number of applications have workloads that are unpredictable, and vary over the course of their execution. For such type of applications, load balancing is achieved by …

An Evaluation Of Perceptions Of A Mentoring Program Of Beginning Teachers In A Rural East Tennessee Secondary School., Mike Frazier

Electronic Theses and Dissertations

Teachers, especially beginning teachers, continue a trend of leaving the profession at alarming rates within the first 5 years resulting in excessive costs to school systems and diminished instructional quality. Some programs, however, have shown impressive results. The purpose of this qualitative study, using an emerging interview process, was to examine the perceptions of beginning teachers in their 1st or 2nd year and those of veteran 3- to 5-year teachers regarding the effectiveness of mentoring and other guidance they received as beginning teachers in a secondary school and to understand their vision of how mentoring should be structured for beginning …

And This, Our Measure: Figurative Realism And Workaday Culture., Perry Walter Johnson

Electronic Theses and Dissertations

Man has created vast and powerful systems. These systems and their associated protocols, dogmas, and conventions tend to limit rather than liberate. Evaluation based on homogeneity threatens the devaluation of our humanity. This paper and the artwork it supports examine contemporary culture and its failings in the stewardship of the humanist ideal.

My paintings referenced herein are satirical narratives. The story told is one of alienation and evisceration. The visual subject matter is the human figure and environments dominated by architectural geometry. The male figures are conspicuously turned from view, a visual cue to their estrangement. Parallel and subordinate thoughts …

Self-Management Of Type 2 Diabetes In Appalachina Women., Melissa Joy Magness

Electronic Theses and Dissertations

Gender, minority, and regional-related disparities have been documented in diabetes management. Self-efficacy, the belief in one's ability to carry out the actions mandated by a task, has been identified as a key predictor in glycemic control; however, it has not been investigated in rural, female populations. This cross-sectional, correlation investigation examined the relationships among self-efficacy, depression, and diabetes self-care management in women living in Appalachia with type 2 diabetes. Using Bandura's Social Cognitive Theory, 85 women ages ≥ 21 with type 2 diabetes for a minimum of 6 months who were residents in Appalachia completed the 1) Diabetes Self-Efficacy Scale, …

Light Image Therapy In The Health Care Environment., Anna Rae Dutro

Electronic Theses and Dissertations

Use of positive distraction in the built healthcare environment to assist in alleviating stress in a patient was investigated. A backlit light image was mounted in the ceiling of an examination room to create a positive distraction for patients in the ETSU Pediatric Clinic in Johnson City, TN. Survey instruments were used to collect sample data from patients and physicians in a randomized, balanced controlled study designed to determine if patients experienced less stress in the room with the backlit image as compared to other rooms (treatments). Although a statistical difference was not determined between the room with the backlit …

1, Structural And Functional Studies Of Human Replication Protein A; 2 Dna Damage Responses And Dna Repair Defects In Laminopathy-Based Premature Aging., Yiyong Liu

Electronic Theses and Dissertations

The genome of mammalian cells is under constant attack from DNA-damaging agents. To maintain genomic integrity, cells activate an array of pathways primarily consisting of DNA repair and DNA damage checkpoints. Human replication protein A (RPA), a single-stranded DNA (ssDNA) binding protein, is essential for almost all DNA metabolic pathways. However, the role of RPA in nucleotide excision repair (NER), a DNA repair pathway for removing bulky DNA lesions, remains elusive. In this study, the binding of RPA to a battery of well-defined ssDNA substrates has been systematically examined using fluorescence spectroscopy. The results showed that RPA has a lower …

Mentoring At-Risk Youth: A Case Study Of An Intervention For Academic Achievement With Middle School Aged Students., Kellie Carter Johnson

Electronic Theses and Dissertations

Students without caring, positive role models often make poor decisions. School personnel are aware of the need to help these students be productive members of society; therefore, they examine strategies and reforms to reach them. A mentoring program is one such intervention that is gaining in popularity.

This research study examined a mentoring program entitled the LISTEN (Linking Individual Students To Educational Needs) Mentoring Program that I developed in 2003. For the purposes of this research, the mentoring program was developed and implemented in one middle school in Northeast Tennessee. The goal of the LISTEN mentoring program was to identify …

Agronomic Performance And Beef Cattle Grazing Preference Among Three Prairie Bromegrasses, Allen Stewart Hubbard

Theses and Dissertations

Prairie bromegrass is a cool-season perennial bunchgrass with potential as a valuable forage crop in the southeastern USA. The objective of this study was to compare dry matter production, persistence, nutritive value, and beef cattle grazing preference of two experimental lines and a commercial species (cv. Matua) of prairie bromegrass. Plots were established in a randomized complete block design with four replications. When each plot accumulated at least 20 cm of growth, plots were grazed with Hereford x Angus steers at a stocking rate of 8400 kg/ha until the first plot was grazed down to 7 cm in height. Pre- …

A Study To Identify The Effects Of Community College Student Recruitment Marketing By Television On Prospective Students, Raymond Benjamin Denton

Theses and Dissertations

The purpose of this study was to compare and to evaluate the television market segmentation suggested in Massey's 1997 study, to investigate the viewing habits of those potential community college students, and to look for the message that called them to action. Segmentation specifically refers to the difference in preferred call to action messages between directed students, lateopters and drifters. The demographics that make-up the college in this study (Meridian Community College) was of particular interest in determining the suggested segmentation. Research questions put forward in this study were: 1. What are the descriptive profiles of the respondents? 2. Is …

Analysis Of Selected Correlates Of Spouse Abuse And The Policy Implications For The Criminal Justice System., Marlys Kay Tester

Electronic Theses and Dissertations

Research on spouse abuse has received greater attention during the last 3 decades around the world. This research was conducted to investigate the selected correlates of alcohol use, drug use, and marital status and the effects they have on use of weapons and violent behavior. The secondary data used was from a study done in Chicago from 1995-1998, called the Chicago Community Crime Prevention and Intimate Violence Study. There were 210 domestic violence victims studied in one Chicago area. Each victim was asked a series of the same questions. It was found that 39.4% of the domestic violence cases involved …

A Study Of Clinical Outcomes Using Serum Albumin And Percentage Of Weight Loss Following Nutritional Intervention In Post-Operative Bariatric Patients., Jennifer Michelle Angus

Electronic Theses and Dissertations

The purpose of this study was to determine if post-operative serum albumin and percentage of weight loss improved in patients who received formalized pre-operative nutrition counseling. Nutrition intervention was measured quantitatively. A retrospective review of records was conducted on 77 RYGB patients (68 female subjects and 9 male subjects), ages 21-64, during January 2001 through January 2006.

The results indicated that patients who received pre-operative nutrition intervention had better clinical outcomes of serum albumin than those with no nutrition intervention from a registered dietitian. However, outcomes regarding percentage of weight loss varied. Both pre-operatively and at the 3 month post-operative …

Lost Cove, North Carolina: The Life And Death Of A Thriving Community (1864-1957)., Christy A. Smith

Electronic Theses and Dissertations

This research examines the history and events that shaped the people and community of Lost Cove, an isolated Appalachian settlement. Chapter 1 surveys previous written and oral accounts of Lost Cove and the physical/cultural attributes of the community. Chapter 2 explores Lost Cove's identity, name, and first settlers. Chapter 3 explores the community's buildings and the families' livelihood. Chapter 4 examines the effect that the CC & O Railway and the sawmills had on the community. Chapter 5 examines moonshine selling in Lost Cove. Chapter 6 reveals how the church and school acted as a gathering place and how sermons …

Chaos In Clinton., Heather Flood

Electronic Theses and Dissertations

The integration of Clinton High School, located in Clinton, Tennessee captivated the nation in the fall of 1956. This paper depicts the events that occurred during that period. Also included are the events that occurred prior to the desegregation of the high school, the understanding of which is necessary to fully appreciate the events that unfolded in Clinton.

Gaining Attention And Encouraging A Response: My Criteria For Successful Graphic Design., Kerry Scott Jenkins

Electronic Theses and Dissertations

As a graphic designer, my goal is to clearly express my clients' message to their intended audience. Based on the diversity of my clients and their products and services, finding a consistent style in my projects might be difficult, although there are usually some typical traits. With examples of my work and dialogue from leaders in the graphic design industry, I intend to point out a common thread that runs through all successful design projects, regardless of the projects' designer, era, or individual design elements (e.g., typography, copywriting, color, layout, imagery). Success comes from graphic design's ability to gain attention …

Design And Construction Of The Audrey Ii Puppet Series For The Play Little Shop Of Horrors., Chad David Fraley

Electronic Theses and Dissertations

This project's objective was to design and build 4 stages of the Audrey II puppet for the East Tennessee State University production of Little Shop of Horrors (Ashman, 1982). The puppets were to be created with consideration for the production space, budget, and operator ease, along with audience impact. This paper will present the design and construction in a step by step-bystep fashion using illustrations and photographic examples.

Each puppet in the series was originally conceived using references to living plants and animals combined with an artistic vision of the designer. The puppets were built with light, modern materials using …

Historic Preservation Leading To Heritage Tourism As An Economic Development Strategy For Small Tennessee Towns., Robert A. Justice

Electronic Theses and Dissertations

Historic preservation has been a successful economic development tool that has led to heritage tourism in some Tennessee towns but not in others. The problem studied was to determine if there was a set of tangible attributes a town must possess to be successful in using historic preservation as an economic development tool. Through an extensive literature review, 59 predictor variables were identified and arranged into 6 research questions looking at the tangible attributes related to town demographics, geography, organizational structure, historic preservation organizations, heritage tourism organizations, and town financial structure. Data were collected from a mailed survey of 32 …

Blood Into Milk: Poems, Ginny Kaczmarek

LSU New Orleans Theses and Dissertations

No abstract provided.

Synthesis Of Novel Chiral Heterocyclic Compounds For Antibacterial Agents And Peptidomimetics, Jean-Rene Ella-Menye

LSU New Orleans Theses and Dissertations

Small chiral molecules are very important building blocks in the synthesis of biologically active compounds. These building blocks include nitrogen and oxygen-containing heterocycles such as 2-oxazolidinones, 1,3-oxazinan-2-ones, 2-oxazolines, oxazines, morpholine and morpholinones. Because of their interesting properties, chiral heterocycles have stirred great interest in the synthetic chemist community to develop useful and efficient strategies to these molecules. In this dissertation, the design and syntheses of various heterocyclic building blocks are presented, as well as the testing of their biological activities as antibacterial. Another very interesting family of heterocycle-containing molecules are the Aeruginosins. They are a family of marine natural products …

Executive Dysfunction Following Traumatic Brain Injury And Factors Related To Impairment, Jonathan Ord

LSU New Orleans Theses and Dissertations

Deficits in executive function are commonly reported following Traumatic Brain Injury (TBI) and are important for establishing functional impairments. Understanding the nature of executive dysfunction following TBI is often complicated by secondary factors that can impact measured ability. This study sought to clarify the persistent effects of TBI on executive function, as measured by the Wisconsin Card Sorting Test (WCST), while accounting for effort given during testing, as measured by the Portland Digit Recognition Test. Results suggested a dose-response relationship between TBI severity and subsequent WCST deficits. Mild TBI patients who provided good effort during testing showed no observable differences …

Fighting The Lethargy: Creating The Role Of Masha In Anton Chekhov's The Three Sisters, Lisa Picone

LSU New Orleans Theses and Dissertations

This thesis serves as documentation of my efforts to define accurately my creative process as an actor in creating the role of Masha in The Three Sisters by Anton Chekhov. This includes research, character analysis, rehearsal journal and an evaluation of my performance. The Three Sisters was produced by the University of New Orleans Department of Film, Theatre and Communication Arts in New Orleans, Louisiana. The play was performed in the Thrust Theatre of the Performing Arts Center at 8:00 pm on the evenings of April 19 through 21 and April 26 through 28, with one matinee at 2:30 pm …

Probability And Statistics For Third Through Fifth Grade Classrooms., Melissa Taylor Mckinnon

Electronic Theses and Dissertations

This document contains a variety of lesson plans that can be readily used by a teacher of intermediate students. This thesis contains two units in Probability and one unit in Statistics. Any educator can supplement this document with any curriculum to teach lessons from vocabulary to concept.

Current Public Relations Status In China., Fang Meng

Electronic Theses and Dissertations

This study is to explore the status of public relations in China. It examines if J. Grunig and Hunt's (1994) four models of public relations-press agentry, public information, two-way asymmetrical, and two-way symmetrical-are practiced by Chinese public relations practitioners and if there are additional patterns of practicing public relations in China. It is a qualitative study. Long interviews with 10 participants were conducted to learn about the phenomenon of public relations in China. The interviews were based on one-to-one chat via the Microsoft Messenger software online. The data were collected using open-end questions that allowed the participants to provide in-depth …

The Virginia Sol Eighth Grade Writing Test In Relationship To The National Commission On Writing Recommendations, Grade Configuration, Region, And Socioeconomic Status., Jeffrey R. Comer

Electronic Theses and Dissertations

The purpose of this quantitative study was to examine Virginia Standards of Learning 8^th grade writing assessments to determine if there was any association between school passing rates and the recommendations suggested by the 2003 National Commission on Writing to improve writing proficiency. This study further examined the possible differences in school passing rates that may exist due to the grade configuration of a school, the location of a school, the availability of a comprehensive writing plan, and the student percentage on free and reduced-price lunch. Data collection consisted of a self-administered survey sent to all 364 schools in …

Life And Debt For Etsu Graduate Students., Laura Nelson

Electronic Theses and Dissertations

Through in-depth interviews with 21 participants, this thesis investigates how graduate students at East Tennessee State University feel about their finances. Although all adults, by necessity, have everyday money concerns, this study explores the unique experiences that post-baccalaureate students have with debt, how they talk about it, and what meanings they attach to student loans in their daily lives. This study is novel in that little research to date has examined how graduate students' perceptions of adulthood are connected to their financial situations and their stage in life. For example, saving money is important to this population mainly because it …

Evidence Of Ecological Speciation In Phacelia., Pamela Michele Glass

Electronic Theses and Dissertations

Phacelia purshii Buckley and P. fimbriata Micheaux are two species that are nearly morphologically indistinguishable. Seed germination experiments showed that the high elevation endemic, P. fimbriata requires lower temperatures to trigger germination. Following interspecific crosses, pollen tubes enter ovules and maternal tissue of the gynoecium matures but hybrid diploid and triploid organs fail to develop. DNA sequences from the ribosomal DNA internal transcribed region showed that P. fimbriata and P. purshii comprise a monophyletic clade but that P. fimbriata is more differentiated from related species. In contrast, P. purshii supported significantly higher levels of intraspecific polymorphism. Phacelia fimbriata and P. …

Integration Of Fifth Grade Math And Science Curriculum, Accompanied By Increased Parental Involvement, Produces Higher Virginia Test Scores., Kathy Diane Perkins

Electronic Theses and Dissertations

The National Educational Society, through much research and testing, discovered that American students are not performing as well on the academic level as their counterparts. As a nation the math and science scores fell behind other tested disciplines. The Virginia Department of Math and Science Report Card scores confirm that students are struggling in these areas.

As a resolution to correct this problem a proposal for the integration of fifth grade math and science curriculum accompanied by increased parental involvement was devised. The program involved thirteen elementary students and their parents. Pretesting, math and science labs, worksheets, posttesting, and a …