Digital Commons Network^™

Probing The Unfolding And The Stability Of The Last Four Metal Binding Domains Of Wilson Disease Protein Using Circular Dichroism And Novel Spectroscopic Techniques, Ibtesam Yaseen Alja’Afreh

Dissertations

Wilson disease protein is a copper-transporting P_1B type ATPase. It has large N-terminal copper binding domain which is composed of six homologous sub-domains. Each of these six domains is ~72 residues and connected to one another by linking regions of various lengths. They all possess similar ferrodoxin fold, and metal-binding motif, MXCXXC.

The need of having six metal binding domains and the manner in which they are communicating with each other is not well understood. To better understand how the last four metal binding domains function, I pursued a detailed biophysical characterization of these domains. Using molecular biology I …

The Relationship Between Racial Ambiguity And Self-Concept In Multiracial Lndividuals, James R. Jobe

Dissertations

The present study examined the relationship between racial ambiguity and self-concept in multiracial individuals. Research as to the experiences of multiracial people is limited both in frequency and in scope. As multiracial individuals continue to grow in number, understanding their unique experiences will become more important to social scientists (e.g., psychologists, anthropologists, sociologists) across disciplines. The current study examined two hypotheses and explored a series of additional relationships. The theoretical framework that was utilized for this study was Symbolic Interaction Theory. This theory provided an effective way to understand how people use and make meaning of their surrounding social contexts …

An Examination Of How Feminist Perspectives And Generational Differences Lnfluence The Leadership Practices Of Women Administrators In Higher Education, Marlene Kowalski-Braun

Dissertations

This study explored how feminist perspectives and generational differences influence the leadership practice of women administrators in higher education, specifically, how they lead and create institutional change. It examined the experiences of seven women who identified as feminists, who were part of Generation X, and who were at the mid-level, aspiring to senior-level, or in senior-level positions.

Phenomenology was the qualitative methodology used in this study to uncover how these women made meaning of their feminist and generational identities. The approach was grounded in feminist methodology and utilized feminist standpoint theory to legitimize women as “knowers.” It drew on a …

Lntegration Of Conventional Lithography And Printing Processes As A Key Enabling Technology For Printed And Flexible Sensing Systems, Binu Baby Narakathu

Dissertations

Sensors, which are used ubiquitously in a wide variety of applications, are revolutionizing the already ever-changing world we live in by providing real-time information about our surroundings. This dissertation focuses on the integration of conventional photolithography and printing processes as a key enabling technology for printed and flexible sensing systems.

Initially, an efficient opto-electrochemical sensing system, for the dual detection of heavy metal compounds was successfully developed. A novel microfluidic flow cell, with a reservoir volume of 25 μl, was designed and fabricated using acrylic. An electrochemical sensor with gold (Au) interdigitated electrodes (IDE) on a glass substrate was photolithographically …

Ultrafast Interfacial Electron Transfer Across Molecule-Tio2 Nanocomposites: Towards Solar Cells And Two Photon Absorption, Edwin Mghanga

Dissertations

Interfacial charge transfer (ICT) across the molecule-TiO2 nanoparticle interface has gained enormous research attention for applications in dye sensitized solar cells (DSSC), photo-catalysis, water splitting and nonlinear optics. DSSCs are promising clean alternative energy sources. However, current DSSCs suffer from lower efficiencies and higher cost. Better understanding of the ICT processes in DSSCs can help solve these problems. We have used two strategies to understand ICT in the context of DSSCs. Firstly, we used a computationally validated anchor group, acetylacetonate (acac) to bind molecules to the semiconductor surface and facilitate charge separation. Secondly, we used natural dye sensitizers, …

Does Video Game Use Exacerbate The Relation Between Neurophysiological Deficits And Adhd Symptoms In Children And Adolescents?, James Kenneth Goodlad Iii

Dissertations

Attention-deficit/hyperactivity disorder (ADHD) is diagnosed based on behavioral symptoms but is thought to have a significant heritable neurological basis, and several brain structures have been implicated. Recent research has focused on the role of environmental factors that may influence the behavioral expression of inattention and hyperactivity-impulsivity in children and teens, particularly when a biological predisposition exists. This study sought to broaden the literature base by examining the extent to which one environmental factor—video game use—moderated the relation between neuropsychological deficits in attention and inhibition and the behavioral symptoms of ADHD. It was hypothesized that gaming frequency and duration as well …

British Brass Band Contest Pieces: A Study In Transcriptions For The American Wind Band Repertoire, Jonathan James Helmick

Dissertations

This study tests the underlying beliefs and values motivating research and repertoire development as related to the American wind band. It seeks to examine the belief that a sizeable body of quality, original repertoire is the barometer for measuring the success of the American wind band movement. Preliminary research finds an overwhelming emphasis placed on quality original repertoire as the measure of validation for the American wind band. An absence of research on transcriptions and their relationship to the American wind band is evidenced. The utility of the study is related to the value judgment surrounding the musical integrity of …

Continuous Polymer Reactor Design, David Sujay Kingsley

Dissertations

Twin screw extruders can be used as continuous polymer reactors to process polymers, which are conventionally made through batch reactors. Batch processes have certain undesirable qualities such as improper mixing and the inability to precisely control the reaction, which leads to variation between batches and potential exotherms. The work presented in this dissertation investigates the use of continuous polymer reactor designs to efficiently process renewable sourced thermoplastic polyurethanes (TPU), and prepreg epoxy matrix prepolymers.

The overall goal of this research is to highlight the modularity of twin screw extruders as continuous polymer reactors to synthesize the relevant polymers. Chapter I …

Blue Mountain: A Chamber Opera For Winds And Voices By Justin Dello Joio: A Unique Contribution For Wind Band Literature, Armando Saldarini

Dissertations

Blue Mountain is an opera in one act scored for four voices, and thirty-three instruments, commissioned by Det Norske Blaseensemble. Under the direction of Kenneth Jean, the premiere took place on October 8, 2007, at Kanonhalen in Oslo, Norway, as part of the Edvard Grieg Centennial celebrations and the 2007 Ultima contemporary Music Festival. The opera takes place in Troldhaugen, Norway, during the last days of Edvard Grieg’s life. Suffering from emphysema, Grieg was being treated by his doctor with morphine that created great anxiety, fear, and mental torment. A visit from his friend, Percy Grainger, gave Grieg great …

The Influence Of Mileage Club On Females' Body Image And Self-Esteem, Shanda Crowder

Dissertations

No abstract provided.

Into The Looking Glass: Undergraduate Students' Integrating And Illuminating Their Wisdom And Experiences As Global Citizens, Sarah Jean Wyscaver

Dissertations

Five undergraduate students shared stories about the wisdom they gained while working to integrate their global citizen identity into their every day lives. Using a postcolonial theoretical framework and portraiture methodology, this inquiry followed participants during a 13-day global service-learning experience in Yucatán, Mexico. Through on-site observations, creative representations, and two in-depth interviews, provide new understandings about the ways in which five diverse college students integrate and illuminate their global citizen identities emerged. Participant portraits revealed themes based on global citizen identity integration as it relates to personal history, ethnic legacy, and educational narratives among participations. Further analysis revealed participants’ …

The Lived Experiences Of Veteran Elementary Urban School Teachers: Why And How They Stay, Cynthia A. Anthony

Dissertations

Longevity in teaching careers depends on many things, including job satisfaction, the work environment, career stages, and strategies to manage stress and avoid burnout. Teachers who have high levels of job satisfaction are more likely to stay in the profession. Job satisfaction is dependent on the motivators in a job: administrative support, collegiality, recognition, advancement, and growth. The work environment, job demands, career development, empowerment, and bureaucracy, plays an important role in retaining teachers.

The purpose of this phenomenological study was to examine factors that enabled and encouraged a sample of 12 veteran elementary school teachers in a small urban …

On Women And Running: A Feminist Rhetorical Investigation Into The Political And Ontological Implications Of Consciousness-Raising Via The Sharing Of Women's Running Stories, Janelle Leann Briggs

Dissertations

The goal of my dissertation is to further our understanding of the political ramifications of women's running stories by focusing on the intersections of feminist rhetoric, women in sports studies, political theory, and ontology. To this end, I examined six books written by women, about women, who participate in the sport of running. Since I am most interested in how gendered concepts teach us how to be "appropriate," and due to the fact that what is considered appropriate gendered behavior changes over time, I start from a place of understanding that "appropriateness" is necessarily both hegemonic and unstable. As a …

"I Don't Want To Hurt Anyone's Feelings": Using Race As A Writing Prompt In First Year Writing, Dianna Shank

Dissertations

First Year Composition (FYC) is one of the most important courses for any incoming college student. This course (often designated as English 101) provides students the rhetorical tools to fully engage in critical thinking and writing on the college level. One of the most common methods of organizing FYC is to use a topic as the center of all the reading and writing prompts. The use of outside subject matter to teach FYC is a common practice that is rarely interrogated for its effectiveness. However, the Hairston debate in the early 1990s opened up a public discussion of how FYC …

Ancestor Worship In The Middle Sicán Theocratic State, Go Matsumoto

Dissertations

The major focus of this dissertation is the ancestor worship that is inferred to have been practiced in the multiethnic Middle Sicán theocratic state (AD 950-1100) that prospered on the northern North Coast of Peru. The major objective is twofold: (1) demonstrating by archaeological means that ancestors were indeed worshipped in the Middle Sicán society and (2) elucidating the nature and role of the inferred ancestor cult and associated rituals and ceremonies. Ancestor (and the veneration of it) is one of the themes that have the deepest roots in the anthropological thoughts; nevertheless, many archaeologists have uncritically invoked ancestor veneration …

Molecular Probes For The Detection Of Zn2+ And Fe3+ Ions, Erendra Manandhar

Dissertations

A number of molecular probes have been designed and synthesized for the detection of Zn²⁺ and Fe³⁺ ions. Two types of functional groups have been incorporated into the molecular scaffolds to utilize different fluorescent mechanisms. The first class of receptors contains a pyrene moiety. These molecular probes use the excimer mechanism for the detection of Zn²⁺ ion. The probes work well in an organic solvent with a detection limit of 20 nM (one ppb). Alternatives are made to make them water soluble, but this proved to be difficult. An interesting ion-induced self-assembly system will also be discussed. …

Studies On The Initial Stage Of Lipid Oxidation In Bulk Oils, Elizabeth Budilarto

Dissertations

During the oxidation of bulk oils, oxidation products (i.e. peroxide values, conjugated dienes and thiobarbituric acid reactive substances) are formed gradually and increased sharply at the end of the induction period. Tocopherols were consumed, some water was formed, and micelles increased in size during the induction period of vegetable oils oxidized in bulk. The evidence that the evolution of micellar size was in parallel with the end of induction period corroborates the recognition that micelles are the active site of oxidation. The interactions of α-tocopherol and three synergists: ascorbyl palmitate, phosphatidylcholine and L-lysine were studied in cod liver oil, to …

Utilization Of Aqueous Raft Prepared Copolymers To Improve Anticancer Drug Efficacy, Andrew Christopher Holley

Dissertations

The advent of controlled radical polymerization (CRP) techniques, along with advancements in facile conjugation chemistry, now allow synthetic tailoring of precise, polymeric architectures necessary for drug/gene delivery. Reversible addition- fragmentation chain transfer (RAFT) polymerization and its aqueous counterpart (aRAFT) afford quantitative control over key synthetic parameters including block length, microstructure, and placement of structo-pendent and structo-terminal functionality for conjugation of active agents and targeting moieties. The relevance of water-soluble and amphiphilic (co)polymers synthesized by RAFT for in vitro delivery of therapeutics in biological fluids is an especially attractive feature. In many cases, polymerization, binding, conjugation, …

The Influence Of Observational Learning On Self-Reported Physical Activity, Self-Efficacy For Physical Activity, And Health-Related Fitness Knowledge For Physical Activity, Charles Gregory Bullock

Dissertations

The obesity epidemic has caused tremendous burden to our economy and healthcare system. Physical activity is one method that can reduce the obesity rate. However, physical activity declines in high school and does not recover. The likelihood of adolescents continuing their involvement in physical activity depends on how they navigate the highs and lows of their physical activity experiences (Feltz & Magyar, 2006). The purpose of this study is to look at the role of observational learning in physical activity and behaviors in an adolescent population. Specifically, this research examines the influence of observational learning on self-reported physical activity, self-efficacy …

Recruiting Minority Faculty: The Effects Of The Bradley Memo Of Understanding On An Urban School District - A Program Evaluation Dissertation, Lois Mckee

Dissertations

This Program Evaluation Plan (PEP) explores aspects of the Bradley Memorandum of Understanding (MOU) with respect to its implementation in Pinellas County Schools (PCS). Although the Bradley MOU has many facets, this dissertation examines the minority faculty initiative portion of the agreement. There are many obstacles to overcome regarding attracting African American teachers to the PCS district, and they seem to be similar to struggles found in other districts across the state of Florida. By implementing a pre and post survey and conducting interviews with teachers and district employees, I was able to discover that Pinellas County Schools is showing …

Paper People And Digital Memory: Recreating The Public And Private In Japan, Meghan Sarah Fidler

Dissertations

This research examines how reading and writing on digital platforms establishes public and private spheres in Tokyo, Japan. Based upon findings from a group of students at an international University, I develop new modes of thinking about people and their use of Internet capable devices by exploring the paradoxes present in contemporary literacies. Contextualizing reading and writing within the speech patterns and exchange rituals (aisatsu) which mark public spheres in Japan, writing practices are found to reflect multiple nuanced identity performances in which the varied use of the cultural principles uchi/soto (inside/outside) and ura/omote (back/front) create parallel publics. Constructed by …

Making Telework Work: The Effect Of Telecommuting Intensity On Employee Work Outcomes, Maria Spilker

Dissertations

The current study examined the effects of telecommuting intensity – the amount of scheduled time that employees spend doing work away from the central work location – on employee outcomes. Results of this study provided insight into how telecommuting intensity relates to turnover intent and supervisor-rated performance through mediating mechanisms of work-life conflict, professional isolation, and Leader-Member Exchange. An online survey instrument was created, and an invitation to participate was sent by e-mail to telecommuters. Each participant was asked to provide an email address for his or her direct supervisor. The supervisor was asked to complete a shortened version of …

Parental Mentoring: An African American Approach To Raising Daughters With Self-Esteem, Qiana Brandy Smith

Dissertations

There is an ample amount of research that documents the positive effect of self-esteem on a child established through an affirmative parental or mentoring relationship, verses a specific parent-mentoring approach designed with a curriculum to enhance the positive self-esteem of African-American daughters based on the relationship with their maternal parent. The purpose of this qualitative study was to answer the following research questions: what strategies and behaviors are used by parents in African-American families to affect the self-esteem of female children and adolescents and, how can strategies and behaviors exhibited by African-American parental mentors be organized in a teachable format …

A Quantitative Study Of Educational Poverty, School Location, And Student Achievement Measured By The Program For International Student Assessment (Pisa), Brett Barger

Dissertations

The performance of the United States’ students on international tests remains an ongoing source of concern, division, and anxiety for government, educational, and business leaders, teachers (and their unions), as well as the general public. These selfsame test results have been used as evidence to support diametrically opposed political and educational strategy and policy for decades. All too often the performance of students is discussed with a single test score number that is used to represent the entirety of the education system’s students without accounting for geographical, demographic, or socioeconomic differences among the student test takers. The contributing factors of …

A Complex Social Network Analyses Of Online Finanical Communties In Times Of Geopolitcal Military And Terrorist Events, James Usher

Dissertations

Given the advances in technology the field of social network analysis has very much hit the forefront in recent years. The information age harnesses the use of social network analysis for multiple industries and for solving complex problems. Social network analysis is an important tool in the world of the military and counter intelligence, whether it’s the capture of Osama Bin Laden or uncovering hidden Al Qaeda terrorist networks, the world around us is built on networks, be that hidden or otherwise. Online social networks give new information in the world of intelligence agencies similarly online financial communities such as …

Austerity In 21st. Century Dublin: Has Recession Altered Our Relationship With Food Purchasing And Preparation?, Diarmaid Murphy

Dissertations

The current global recession has affected almost all countries whose economies adhere to free-market principles and are involved in international money markets. Ireland, along with the majority of its European trading partners both inside and outside the eurozone has seen a sharp fall in the standard of living of its citizens in the years since the financial crisis emerged (2007 to present). In common with the almost universal international paradigm, Irish citizens have had drastic austerity measures imposed upon them. In Ireland’s case, the underwriting of private banking debt and its subsequent conversion to sovereign debt served to contract the …

The Garda Youth Crime Case Management Programme – A Garda Perspective On The Role And The Relationship Dynamics Involved When Managing Cases Of High-Risk Young Offenders Appearing Before The Children Court., Jonathan O'Brien

Dissertations

An Garda Síochána have rolled out a national programme for managing young offenders. The programme aims to provide a child centred, family inclusive, multi-agency approach to manage young people who are before the Courts. The programme has been in operation since 2007 but to date there has been no published research on it. To address that gap this research examines the perspectives of six Garda case managers to gain an insight into the development and evolution of the specific relationship that exists between a Garda case manager and a young offender. The research centres on a number of key questions …

Policing The Police: How Is The Operation Of The Garda Síochána Ombudsman Commission Perceived By Frontline Members Of An Garda Síochána?, Noel Barry

Dissertations

The Garda Síochána Ombudsman Commission (GSOC) became operational in 2007. The establishment of GSOC was a new departure in the area of police complaints in Ireland and was only one part in a series of wide ranging reforms in the area of policing introduced at the same time. Since 2007 there has been limited research conducted on the operation of GSOC. Members of An Garda have never been given an opportunity to give a detailed account of how they perceive the operation of GSOC. This study offered members of An Garda Síochána, of Garda and Sergeant rank, an opportunity to …

Discrepancies In Discipline Of Middle School Students By Gender: A Comparison Of Principal Candidates’ Responses To Vignettes, And Teacher Perceptions, Jill Lukefahr-Farrar

Dissertations

Discipline in schools exists so that there are guidelines to ensure safety and learning. Administrators and teachers give students consequences based upon discipline guidelines made by the school districts’ board of education. The discipline administered can be subjective. In a suburban mid-western school district, alarming trends in the amount of discipline referrals of male students both in the primary investigator’s middle school and in the other middle schools within the researched district were recognized. The purpose of this mixed methods study is to analyze and understand if gender discrepancies exist in discipline for middle school students among aspiring administrators, practicing …

Deciding On Science: An Analysis Of Higher Education Science Student Major Choice Criteria, Stephen Wilson White

Dissertations

The number of college students choosing to major in science, technology, engineering, and math (STEM) in the United States affects the size and quality of the American workforce (Winters, 2009). The number of graduates in these academic fields has been on the decline in the United States since the 1960s, which, according to Lips and McNeil (2009), has resulted in a diminished ability of the United States to compete in science and engineering on the world stage. The purpose of this research was to learn why students chose a STEM major and determine what decision criteria influenced this decision. According …