Digital Commons Network^™

Teachers Or "Real" Police Officers?: A Study Of Dare Officers In Northeast Tennessee., Jennifer Lynne Commons

Electronic Theses and Dissertations

Most studies of the Drug Awareness Resistance Education (DARE) program evaluate the program’s effectiveness; this thesis instead examines the police officers who implement the program. Based on interviews with 12 DARE officers in the Northeast region of Tennessee, the thesis explores how members of this special category of police officers identify themselves. The DARE officer interviews were compared with published literature on conventional police officers. All DARE officers interviewed defined themselves as police officers but did little to no actual police work, nor were they viewed by patrol officers as “real” police officers. Instead, DARE officers functioned primarily as educators. …

Characterization Of Microbial Communities In Karstic Sediments : A Study Of Cave Bacteria In Central Kentucky., Justine Kay Roback 1964-

Electronic Theses and Dissertations

Few previous studies have compared microbial communities in subterranean and surface environments. Chemical analyses used to characterize the surface and cave microbial environments indicated limited exchange between surface and subsurface waters. Here, bacterial communities from four distinct cave sediments collected in central Kentucky and adjacent surface streams were compared using a combination of culture and molecular methods. Predictions were that: 1) Cave communities will have unique community structures when compared to those of nearby surface sediments, and 2) Genetic diversity of bacterial communities in cave sediments will be higher than those in nearby surface sediments. Since diversity and community structure …

A Survey And Analysis Of The Implementation Of Visual Art Standards In Mississippi Classrooms, Ann D. Ostenson

Electronic Theses and Dissertations

The purpose of this thesis was to determine whether art teachers were implementing Mississippi State Frameworks for art. Teachers who opted not to use the frameworks were asked to list teaching methods used in lieu of the state- suggested teaching strategies. This study was conducted through survey, although some information was gathered through informal interviews.

Participants included members of the Mississippi Art Education Association and K-12 teachers in Jackson city schools. Of the one hundred and sixteen surveys mailed out to Mississippi art teachers, fifty were returned. Of those who responded, sixty-four percent (N=32) were adherent to the Mississippi State …

Role Of Inducible Nitric Oxide Synthase And P-Selectin In Platelet-Arteriolar Wall Adhesion And Associated Arteriolar Constriction During Lung Reperfusion., Alexander V. Ovechkin 1957-

Electronic Theses and Dissertations

Reperfusion of the ischemic lung causes pulmonary arteriolar vasoconstriction and reduces alveolar perfusion. Lung ischemia-reperfusion (IR) injury leads to platelet and leukocyte activation which could contribute to decreased alveolar perfusion during reperfusion by platelet-arteriolar wall interactions (rolling and adhesion) and subsequent microvascular constriction. During the oxidative stress of ischemia and reperfusion, formation of reactive nitrogen species (RNS) may promote platelet adhesion to the vascular wall with subsequent formation of microthrombi and release of vasoactive substances. Platelets play an important role in causing reperfusion injury in the systemic vasculature through accumulation and release of mediators, but information is lacking about consequences …

Business Faculty Recruitment : Effects Of Annual Salary And Health Benefits Plan., Glenn Rodriguez

Electronic Theses and Dissertations

The topic addressed by this study was recruiting business professionals pursuing the Masters of Business Administration (MBA) degree to teach in business departments located at two-year community colleges. Recruitment is a task vital to organizational success and is becoming increasingly problematic for community colleges due to massive retirements among members of the post-World War II "baby-boomer" generation. The participants in this study were experienced business professionals (N = 187) completing MBA degrees at a university located in a major metropolitan area in the Midwest. The participants role-played as applicants for community college business faculty vacancies. Each participant rated six jobs …

Survival Songs : How Refugee And Immigrant Women Experienced Violence., Judith C. Heitzman

Electronic Theses and Dissertations

An interest in privileging the voices of women who are marginalized in many parts of the world coupled with knowledge of the restorative properties of music cultivated this qualitative study. Seven women, ages 20-49 years of age, from three continents were asked the following grand tour questions: What was your experience of violence? What were the residual grief and loss issues that you faced? What, if any, role did music play in helping you cope with the stress of surviving violence? Participants were required to (a) be over 18 years old, (b) currently reside in the United States, (c) have …

The Surreal Narrative : Contemporary Tintypes And Video., Mary Helen Yates

Electronic Theses and Dissertations

This thesis is a combination of actual works of art in the tintype and video mediums and a written theoretical exploration of the theme of shadow in fairytales, myths and religious stories. The written portion begins with an overview of the central idea of transformation in both object and narrative in regards to the Jungian notion of the shadow. It also discusses the nature of the tintype process and its relation to storytelling in the context of the body of work. The written thesis continues with a narrative interpretation of the works of art and their role in the metamorphosis …

Induction Of Lineage And Differentiation Of Adult Human Neuroepithelial Progenitors In Vitro., Xiaodong Zhang 1968-

Electronic Theses and Dissertations

Neurosphere forming cells (NSFCs) have been derived from cultures of adult olfactory neuroepithelium obtained from patients and cadavers in serum rich medium. These neural progenitors remain undifferentiated when maintained in serum rich medium but have the potential to differentiate along glial or neuronal lineages. A totally defined medium (DM) was employed to examine their proliferation, lineage restriction and differentiation. None of the neurotrophic factors evaluated increased NSFCs viability or lineage restriction under the defined experimental conditions. Few of NSFCs ever express mature neuronal or glial markers in DM. To evaluate the potential of NSFCs to form oligodendrocytes, transcription factors, Olig2, …

Communicating Culture Through Capoeira, Desislava Georgieva

Electronic Theses and Dissertations

The popularity of capoeira, a dance based in the martial arts and originating among slaves in Sixteenth-Century Brazil, has increased greatly in recent decades as it has spread worldwide as a performance representative of Brazilian history and culture. In 1974, capoeira was declared the national sport of Brazil. Today capoeira academies and competitions may be found wherever Brazilian culture is celebrated and communicated in many major foreign cities. My thesis, through the participant/observer method and the use of long interviews, examines capoeira as it is practiced in one particular academy far from the art form's place of origin. In the …

Novel Protein-Protein Interactions Regulate The Proteolytic Activity Of The Pro- Apoptotic Serine Protease, Omi/Htra2, Supriya Singh

Electronic Theses and Dissertations

Omi/HtrA2 is a mitochondrial serine protease with high homology to the bacterial HtrA proteins. Omi promotes caspase-dependent apoptosis by binding and degrading IAPs-inhibitor of apoptosis proteins. Omi can also induce caspase-independent apoptosis but the actual mechanism is still unknown. IAP's are not the only substrates cleaved by Omi. There are at least two more known substrates of Omi, the HAX-1 and the ped/pea-15 proteins. HS1-associated protein X-1 (HAX-1) is a mitochondrial protein, degraded by Omi after induction of caspase-dependent apoptosis. Ped/pea-15 is also an anti-apoptotic protein and is cleaved by Omi after induction of caspase-independent apoptosis. The proteolytic activity of …

The Scintillation Index In Moderate To Strong Turbulence For The Gaussian Beam Wave Along A Slant Path, Fredrick Eugene Thomas

Electronic Theses and Dissertations

Scintillation is one of the most common statistics in the literature of mathematical modeling of laser propagation through random media. One approach to estimating scintillation is through the Rytov approximation, which is limited to weak atmospheric turbulence. Recently, an improvement of the Rytov approximation was developed employing a linear filter function technique. This modifies the Rytov approximation and extends the validity into the moderate to strong regime. In this work, an expression governing scintillation of a Gaussian beam along an uplink slant path valid in all regimes of turbulence is presented, as well as results for the limiting cases of …

An Investigation Of The Effects Of Speakers' Vocal Characteristics On Ratings Of Confidence And Persuasion, John Montrey

Electronic Theses and Dissertations

This experiment furthered previous research on perceptions of speakers as a function of various vocal characteristics. A low relevance passage was recorded by male and female speakers, simulating voices of orotund, thin, thoaty, flat, breathy, as well as rate and pitch variations, so as to determine effects on persuasiveness and confidence. Main effects were found regarding gender across all vocal characteristics. While an orotund voice produced predominately positive effects of ratings of speakers' confidence and persuasiveness, a breathy effect elicited negative ratings. The male speaker was judged more harshly than the female speaker when the vocal characterization departed from the …

Real Time Rt-Pcr For Direct Detection Of Viable Mycobacterium Avium Subspecies Paratuberculosis In Chron's Disease Patients And Association Of Map Infection With Downregulation In Interferon-Gamma Receptor (Infg1) Gene In Crohn's Disease Patients, Mounir Chehtane

Electronic Theses and Dissertations

Association of Mycobacterium avium subspecies paratuberculosis (MAP) with Crohn's disease (CD) and not with ulcerative colitis (UC), two forms of inflammatory bowel disease (IBD), has been vigorously debated in recent years. This theory has been strengthened by recent culture of MAP from breast milk, intestinal tissue and Blood from patients with active Crohn's disease. Culture of MAP from clinical samples remained challenging due to the fastidious nature of MAP including its lack of cell wall in infected patients. The advent of real time PCR has proven to be significant in infectious disease diagnostics. In this study, real time reverse transcriptase …

An Examination Of Third-Person Effect In The Context Of Contoversial Product Advertising, Keith Jensen

Electronic Theses and Dissertations

This research seeks to determine if there is a third-person effect in the realm of controversial product advertising. A questionnaire was designed based on previous research and distributed to a convenience sample of college students at the University of Central Florida. Participants were asked to rate their perceived levels of personal offense to product categories as well as the expected levels of other groups of people. The results show that there is indeed a significant third-person effect recognized for all product categories except for racial extremist groups. A first-person effect was shown to be present for the category of racial …

Expression Of Hepatitis C Viral Non-Structural 3 Antigen In Transgenic Chloroplasts, Anubhuti Bhati

Electronic Theses and Dissertations

Hepatitis C viral infection is the major cause of acute hepatitis and chronic liver disease and remains the leading cause of liver transplants (NIH). An estimated 180 million people are infected globally (WHO). There is no vaccine available to prevent hepatitis C. The treatment with antiviral drugs is expensive, accompanied with various side effects and is limited only to those at risk of developing advanced liver disease. The treatment is also effective in only about 30% to 50% of treated patients and still a high percentage of patients are resistant to therapy. Therefore, there is an urgent need for the …

Expression Of Cholera Toxin B Subunit-Rotavirus Nsp4 Enterotoxin Fusion Protein In Transgenic Chloroplasts, Anila Kalluri

Electronic Theses and Dissertations

Rotavirus, the major cause of life-threatening infantile gastroenteritis, is a member of the Reoviridae family and is considered to be the single most important cause of virus-based severe diarrheal illness in infants and young children particularly 6 months to 2 years of age in industrialized and developing countries. Infection in infants and young children is often accompanied by severe life threatening diarrhea, most commonly following primary infection. Diarrhea is the major cause of death among children around the world. Responsible for 4 to 6 million deaths per year according to the World Health Organization (WHO), diarrhea is especially dangerous for …

The Status Of Advertising Education In The New Millennium, Joan Mccain

Electronic Theses and Dissertations

Advertising education is 100 years old in 2005. What was necessary to earn a degree in advertising, and how American universities prepared students for it, had a research champion in Billy I. Ross, who did extensive study on curriculum and degree requirements beginning in the 1960s. His last study was in 1991. The World Wide Web, Internet, digital communications and emerging consumer communication choices and preferences have educators discussing changes in advertising curriculum in the new millennium. Some challenges remain constant, while others present a new frontier. An advertising education summit in 2001, sponsored by the American Advertising Federation and …

News Or Speculation? A Comparative Content Analysis Of Headlines And The Prevalence Of Speculative Language In Corporate And Independently Owned Newspapers, Lindsay Hudock

Electronic Theses and Dissertations

This study began with the question of whether the press is conveying messages that contain speculation of future events as opposed to the recounting of current events. Speculative language is a form of subjective speech and as such its presence in press content defies the journalist principle of objectivity. The analysis sought to identify two newspaper's use of speculative language within headlines in the news sections. Two other variables considered were article placement, and the ownership structure of the news organizations. Previous research supports the claim that the ownership structure of an organization can influence the content it publishes (Lacy, …

Receptor Mediated Oral Delivery Of Bioencapsulated Green Fluorescent Protein Expressed In Transgenic Chloroplasts, Arati Limaye

Electronic Theses and Dissertations

The skyrocketing costs of prescription medicine in developed countries and their lack of availability in developing countries are the most challenging problems of human health. Primary reasons for such high cost are fermentation-based production, expensive purification methods, the need for low temperature storage and transportation and the delivery through sterile injections. Most of these expenses could be minimized or eliminated when therapeutic proteins are expressed and orally delivered via plant cells. Chloroplasts have the machinery to fold complex and biologically active eukaryotic proteins in the soluble chloroplast stromal compartment. Protein expression through chloroplast transformation system offers a number of advantages …

News Framing: A Comparison Of The New York Times And The People's Daily Coverage Of Sino-U.S. Spy Plane Collision Of April 1, 2001, Xiaoling Zhang

Electronic Theses and Dissertations

On April 21, 2001, the United States and China faced their first major incident of the 21st century when a U.S. spy plane accidentally collided with a Chinese fighter plane. The dialogue that followed between the two countries, as well as the tenor of the incident as reported in the international press, provide some interesting and insightful glimpses into how these major powers handled the incident in the days and weeks that followed. Although the mainstream media in both China and the United States reported the key facts and elements of the incident in a similar fashion, the spin that …

Selenotrisulfide Derivative Of Alpha-Lipoic Acid: Evaluation In A Cell Culture Model For Potential Use As A Topical Antioxidant, Melenie Lee Alonis

Electronic Theses and Dissertations

Selenium is a required micronutrient in mammalian cells. It is incorporated in the form of selenocysteine into selenoenzymes such as glutathione peroxidase and thioredoxin reductase, and is absolutely required for activity. Thioredoxin reductase is necessary for reduction of oxidized thioredoxin and therefore plays a major role in maintaining the redox status of the cell. Glutathione peroxidase is responsible for reducing peroxides into their corresponding alcohols and water. Together, these selenoenzymes constitute a significant part of the cell's arsenal to defend itself against oxidative stress. Exogenous sources of oxidative stress, such as UV radiation, are capable of generating reactive oxygen species …

Public Participation In Transportation: An Emperical Test For Authentic Participation, Jorge Cesar Figueredo

Electronic Theses and Dissertations

This dissertation examines the public participation activities of State Departments of Transportation (SDOTs) in the United States. A review of existing literature and legal frameworks suggests that an "authentic" public participation results when dimensions of representativeness, use of public inputs, interactiveness, and quality of citizen inputs have been achieved. The study sought to identify conditions that serve as measurements that must presumably be satisfied for authenticity to exist in public participation. The result was a Model of Authentic Public Participation that served as the basis for creation of a new four-tiered methodology to assess the performance of these districts relative …

Life Event Perception: A Structural Equation Modeling Approach To The Antecedents Of The Life Stress Response, Christopher Aaron Myers

Electronic Theses and Dissertations

It has been often argued that life events have an impact on our physical and psychological well-being. In general, research supports this connection between life events and general health, though some argue that simply experiencing life events has a measurable and predictable impact our health, while others contend that this effect is mediated by the appraisal process. Further, research has identified a number of different factors (hypothetically stratified into pre-existing beliefs, external resources and demands, and behavioral activation and coping strategies) that may influence appraisal and general health. The current study attempts to integrate these findings by testing structural models …

Transform Based And Search Aware Text Compression Schemes And Compressed Domain Text Retrieval, Nan Zhang

Electronic Theses and Dissertations

In recent times, we have witnessed an unprecedented growth of textual information via the Internet, digital libraries and archival text in many applications. While a good fraction of this information is of transient interest, useful information of archival value will continue to accumulate. We need ways to manage, organize and transport this data from one point to the other on data communications links with limited bandwidth. We must also have means to speedily find the information we need from this huge mass of data. Sometimes, a single site may also contain large collections of data such as a library database, …

Recovery Of Hydrogen And Helium From Their Mixtures Using Metal Hydrides, Muzaffer Tonguc Oztek

Electronic Theses and Dissertations

Waste streams of hydrogen and helium mixtures are produced at the Kennedy Space Center during purging of the hydrogen systems and supply lines. This process is done prior to and after hydrogen servicing. The purged waste gases are lost to the atmosphere, resulting in an annual loss of 2 million and 0.1 million standard cubic meters of helium and hydrogen, respectively. Recovery of these gases will have an economic benefit. Metals, alloys, and intermetallics are known to react with hydrogen in favorable conditions; therefore, they have the possibility of serving as separating and recovery agents. In this study, Mg2Ni, VTiNi …

Seawinds Radiometer Brightness Temperature Calibration And Validation, Mayank Rastogi

Electronic Theses and Dissertations

The NASA SeaWinds scatterometer is a radar remote sensor which operates on two satellites; NASA's QuikSCAT launched in June 1999 and on Japan's ADEOS-II satellite launched in December 2002. The purpose of SeaWinds is to provide global measurements of the ocean surface wind vector. On QuikSCAT, a ground data processing algorithm was developed, which allowed the instrument to function as a QuikSCAT Radiometer (QRad) and measure the ocean microwave emissions (brightness temperature, Tb) simultaneously with the backscattered power. When SeaWinds on ADEOS was launched, this same algorithm was applied, but the results were anomalous. The initial SRad brightness temperatures exhibited …

Alternative Foam Treatments For The Space Shuttle's External Tank, Kirsten Dreggors

Electronic Theses and Dissertations

The Space Shuttle Columbia accident and the recent excitement surrounding Discovery's return to space brought excessive media attention to the foam products used on the External Tank (ET). In both cases, videos showed chunks of foam or ablative material falling away from the ET during lift off. This led to several years of investigation and research into the exact cause of the accident and potential solutions to avoid the problem in the future. Several design changes were made prior to the return to flight this year, but the ET still shed foam during lift off. Since the Columbia accident, the …

Investigations On Rf Sputter Deposited Sicn Thin Films For Mems Applications, Ravi Todi

Electronic Theses and Dissertations

With the rapid increase in miniaturization of mechanical components, the need for a hard, protective coatings is of great importance. In this study we investigate some of the mechanical, chemical and physical properties of the SiCN thin films. Thin films of amorphous silicon carbide nitride (a-SiCxNy) were deposited in a RF magnetron sputtering system using a powder pressed SiC target. Films with various compositions were deposited on to silicon substrate by changing the N2/Ar gas ratios during sputtering. Nano-indentation studies were performed to investigate the mechanical properties such as hardness and reduced modulus of the SiCN films. Surface morphology of …

Expression Of Gal/Galnac Lectin Of Entamoeba Histolytica In Transgenic Chloroplasts To Develop A Vaccine For Amebiasis, Seethamahalakshmi Chebolu

Electronic Theses and Dissertations

Amebiasis, also defined as invasive intestinal and extra intestinal amebiasis, is caused by Entameoba histolytica, an invasive protozoan parasite. World Health Organization (WHO) has reported that approximately 50 million people are infected each year causing an estimated 40 to 100 thousand deaths annually. Entameoba histolytica ranks only second to malaria as a protozoan cause of death. Amebiasis occurs world wide but people living in Central and South America, Africa and Asia are the majority to suffer from morbidity and mortality. The enteric parasite has no zoonotic reservoirs and insect vectors for its transmission and infects humans and non-human primates. Therefore, …

Implementing Lexical And Creative Intentionality In Synthetic Personality, Erik Vick

Electronic Theses and Dissertations

Creating engaging, interactive, and immersive synthetic characters is a difficult task and evaluating the success of a synthetic character is often even more difficult. The later problem is solved by extending Turing's Imitation Game thusly: computational construct should be evaluated based on the criteria of how well the character can mimic a human. In order to accomplish a successful evaluation of the proposed metric, synthetic characters must be consistently believable and capable of role-appropriate emotional expression. The author believes traditional synthetic characters must be improved to meet this goal. For a synthetic character to be believable, human users must be …