Digital Commons Network^™

Evaluation Of Scrap Tire-Derived Porous Rubber Tubing As A Green Membrane For Sustainable Water Filtration (Ecol-Mem Process), Ana Maria Garcia

USF Tampa Graduate Theses and Dissertations

Increasing population and extensive urbanization have strained resources around the world, promoting water scarcity and solid waste accumulation. Addressing the issues of access to safe drinking water and basic sanitation in developing countries is challenging due to limited technological and financial resources. Therefore, it is imperative that durable, low-cost, and sustainable technologies are developed to help alleviate these problems. At the same time, the production of solid waste has increased and includes waste tires, which pose a health and environmental hazard. Although efforts have been made to develop new markets for recycled scrap tires, a vast majority are still being …

Do You See What I Mean? Measuring Consensus Of Agreement And Understanding Of A National Weather Service Informational Graphic, Lorna M. Geggis

USF Tampa Graduate Theses and Dissertations

Media use of hurricane graphics to apprise populations vulnerable to severe weather provides a persuasive demonstration of the importance and complexity of visual communication. Surprisingly little research, however, has explored how audiences interpret weather graphics. This study examined whether the general public and the National Weather Service share a common understanding of selected weather related terms and meaning of a NWS informational graphic. Using a coorientation model, general public responses to a questionnaire were compared to definitions prescribed by the NWS. Additionally, the public were asked questions to measure trust of the NWS as a credible and reliable source of …

Relationship Between Biofilm Removal And Membrane Performance Using Dunedin Reverse Osmosis Water Treatment Plant As A Case Study, Joshua E. Goldman

USF Tampa Graduate Theses and Dissertations

Membrane biofouling is a common occurrence in water treatment plants that utilize reverse osmosis (RO). As bacteria and biofilm material build up on the membrane surface, it becomes more difficult for clean water to permeate through the membrane, and more pressure is required to produce the same amount of water. When pressures become critically high, membranes must be cleaned. This process is expensive in terms of chemical cost, labor, and downtime. Even after membranes have been cleaned, they can re-foul quickly if the cleaning did not effectively remove the biofilm. The water treatment plant in Dunedin, FL, which uses RO …

The Relationships Between Students’ Perceptions Of School Climate, Attitudes Towards School, And Substance Use Among Early Adolescents, Jason D. Hangauer

USF Tampa Graduate Theses and Dissertations

This study investigated the relationships between early adolescent substance use and perceptions of school climate and attitudes towards school using self-report data from a sample of 443 middle school students. The present study examined school climate and attitudes towards school comprehensively in order to identify important relationships between these classes of variables and multiple types of substance use in early adolescents. The results of the study include that the model of school climate consisting of six factors (fairness, order and discipline, parental involvement, sharing or resources, student interpersonal relations, and student-teacher relations) accurately predicted 11% of the variance in middle …

A Paradox Of Diversity: Billions Invested, But Women Still Leave, Rebekah S. Heppner

USF Tampa Graduate Theses and Dissertations

In 2005, women made up 46.4 percent of the United States labor force but only 1.6 percent of Fortune 500 CEOs (Catalyst 2006). Although gains have been made since the passage of the Civil Rights Act in 1964, there is clearly something stopping women from equal representation at the top. Since the late 1980s, businesses have spent billions of dollars on initiatives designed to assist them in dealing with the anticipated increase in the "diversity" of their workplaces (Lubove 1997; Stodghill II 1996; Johnston and Packer 1987). Is there potential for diversity initiatives to help women conquer the "glass ceiling?" …

(Dis)Continuity Between Sikhism And Islam: The Development Of Hukam Across Religions, Mark Horowitz

USF Tampa Graduate Theses and Dissertations

The purpose of this study is to analyze the development of the Sikh concept of hukam, which is usually translated as a divine command or order. The concept is prominently featured in the Sikh sacred scripture (Guru Granth) and is an important aspect of daily ritual life for the Sikhs. The goal of this study is to provide initial insight into how the concept developed in the Sikh scriptural tradition, as well as the implications that the concept had for the Sikh community. This paper traces the development of hukam from the concepts origin in the Islamic tradition, the writings …

The Pedagogy And Politics Of Online Education In Anthropology, Linda J. Hose

USF Tampa Graduate Theses and Dissertations

This dissertation reports on the key findings of an exploratory study of online education in anthropology. The study was designed to collect information on the extent and types of online offerings at four-year and above degree-granting public institutions in the US. It was also designed to report on the teaching strategies and methods that anthropologists employ online, and to inquire into the conditions and institutional structures that encourage or discourage the development of online education in anthropology. Recent growth in online education has been explosive in many disciplines, but little is known about anthropology's participation in the trend, or lack …

What Are The Socio-Emotional Experiences And Perceptions Of Third Grade Students With High-Stakes Testing?, Anne Marie Juola-Rushton

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to explore the experiences and perceptions of third grade students with high-stakes testing. The study was designed to address this issue from the perspective of the third grade student's experience and offer a venue for them to share their stories. The following research question guides this study: What are the socio-emotional experiences and perceptions of third grade students with high-stakes testing? Data analysis employed here falls under the rubric of qualitative approaches of symbolic interaction and phenomenology written in a narrative format with the provisions of portraiture. This study uses the analytical procedures set …

The Effects Of Organizational Structure On Faculty Job Performance, Job Satisfaction, And Counterproductive Work Behavior, Stacey R. Kessler

USF Tampa Graduate Theses and Dissertations

Organizational researchers focus on group level variables such as organizational climate and organizational structure. The purpose of the current meso-level study is to examine the effects of the structure of an academic department on faculty members' job performance, job satisfaction, and prevalence of counterproductive work behavior (CWB), or harmful behaviors while at work. The sample consisted of 1135 full time faculty members working in 229 academic departments throughout the United States and Canada. Results of the study suggested that faculty members working in a more organically structured department report higher levels of job satisfaction. Additionally, productive faculty members working in …

The Gothic As Counter-Discourse: Mark Twain, Charles Chesnutt And Toni Morrison, Hyejin, Kim

USF Tampa Graduate Theses and Dissertations

Revisiting the American Gothic via Julia Kristeva's theory of "the abject" demonstrates how Gothic strategies expose the historical contradictions of race in works by Mark Twain, Charles W. Chesnutt, and Toni Morrison. As theorized by Kristeva in Powers of Horror, the archaic process in which the subject attempts to constitute itself as homogeneous by casting off or "abjecting" all that cannot be assimilated to the self-same necessarily opens the way to repeated returns of the abject(ed) and the "horror" it provokes. Because the Gothic enacts the return of the abject, it was itself abjected from the literary canon until recently. …

The “Dark Side” Of Ocb: Examining The Relationship Between Citizenship Behavior And Work-To-Family Conflict, Rebecca H. Klein

USF Tampa Graduate Theses and Dissertations

Research on organizational citizenship behaviors (OCB) has focused on the positive aspects of the construct, neglecting the possibility that individuals who engage in OCB may suffer negative consequences. Thus, the present study expands the literature by examining the possibility that OCB is also related to negative individual-level factors, such as work-to-family conflict (WIF). In a replication and extension of Bolino and Turnley's (2005) research, the present study offers an in-depth analysis of the relationship between OCB and WIF, examining two potential mediators (work time and role overload) and two potential moderators (gender and perceptions of OCB as discretionary). Two hundred …

Responsibility And Practice In Notions Of Corporate Social Responsibility, Denise Kleinrichert

USF Tampa Graduate Theses and Dissertations

This treatise presents a transcendental argument for corporate social responsibility. The argument is that corporate social responsibility, or CSR, is best understood as a collective moral practice that is a precondition for sustainable business. There are a number of theories and definitions of CSR in the contemporary business literature. These theories include considerations of economic, legal, social, and environmental notions of what a corporation ought to take responsibility for based on either motives or concerns of accountability for corporate acts. This work focuses on economic theories. I analyze the distinction between the technical terms "responsibility" and "accountability" found in these …

Meaning Makers Make It: Ambivalence About Ambiguity In Academic Discourse, David Haldane Lee

USF Tampa Graduate Theses and Dissertations

This thesis is a broad survey of the uses of ambiguity in academic discourse. I note the uses of ambiguity in literary criticism, linking ambiguity with epistemic relativism. Then I pose the question, is the notion of "reframing" in psychotherapy analogous to the concept of "spin" in propaganda, advertising and public relations? In a consideration of theories that posit the social construction of reality, I examine articles by Judith Butler and Ian Hacking, noting the ambiguous reception of performativity and nominalism, respectively, within academia. In 1996 a physicist named Alan Sokal published an article which argued that reality is a …

Transient Fluorescence Spectroscopy And Laser Induced Fluorescence Lifetimes Of Terbium Doped Dipicolinic Acid, Anali Makoui

USF Tampa Graduate Theses and Dissertations

We have investigated the use of deep UV laser induced fluorescence for the sensitive detection and spectroscopic lifetime studies of terbium doped dipicolinic acid (DPA-Tb) and used this to study the optical characteristics of DPA which is a chemical surrounding most bacterial spores. Background absorption spectra, fluorescence spectra, and Excitation Emission Matrix (EEM) spectra were made of the DPA-Tb complex, using both fixed 266 nm wavelength and tunable (220 nm --

280 nm) UV laser excitations. Of importance, the fluorescence lifetimes of the four main fluorescence peaks (488 nm, 543 nm, 581 nm, and 618 nm) of the DPA-Tb complex …

Venturesome Women: Nineteenth-Century British Women Travel Writers And Sport, Precious Mckenzie-Stearns

USF Tampa Graduate Theses and Dissertations

This dissertation analyzes the travel writings of Isabella Bird Bishop, Mary Kingsley, Florence Douglas Dixie, and Isabel Savory. While away from England, these women writers participated in cultural exchanges which led to reevaluations of British womanhood. British women travel writers operated not only within the power structures of gender but also within the structures of empire, class, and race. Women travel writers blazed the trail for the New Woman of the end of the century. Before cycling and cigarette smoking were allowed, daring women such as Isabella Bird Bishop and Mary Kingsley crisscrossed the globe in defiance of patriarchal tradition …

Getting It Right: A Story Of Truth In Music Performance, Christopher Mcrae

USF Tampa Graduate Theses and Dissertations

This project looks at the relationship between music performance and truth in narrative. Music performance is a fluid and dynamic process with complex and multiple relationships among musician, audience, text, and production. The five sections of this thesis discuss five different musical performances that address different aspects of this dynamic process. I look at the relationship between music performance and Performance Studies, issues of personae and presence, questions of identity and masculinity, pedagogy and performance, and the intersections of writing and performance. The five musical performances in this project are written to not only discuss important aspects of music and …

The Role Of Alternative Press In Mobilization For Political Change In Kenya 1982-1992 Society Magazine As A Case Study, Pius M. Nyamora

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to investigate the role of alternative press in mobilizing Kenyans to regain a multi-party political system after 29 years of one-party rule that had turned into authoritarianism. The study focused on Society magazine, and touched on two other magazines, Finance and Nairobi Law Monthly. Unlike Society, these magazines were not intended to cover politics, although they changed their role later. Finance and Nairobi Law Monthly were examined through secondary sources and the author's interactions with the publishers. Whereas Society was a weekly founded and run by journalists, Finance and Nairobi Law Monthly were monthlies …

Elisa Brune’S Le Goût Piquant De L’Univers: A Translation And Introduction, Ryan Orgera

USF Tampa Graduate Theses and Dissertations

Le Goût piquant de l'Univers is written by the Francophone Belgian writer Elisa Brune. Brune holds a Ph.D. in environmental sciences, and this novel does not stray far from her training in science. The setting of this oeuvre is that of a Provençal village of Peyresq, the premiere annual rendezvous for the world's foremost cosmologists. The vocabulary employed in this book is that of highly scientific coteries. The work's sentence structure is a mix of dialogue, and unruly compound phrases. These two aforementioned stylistic choices made the translation of this work especially difficult. In translating, I worked with Dr. Gaëtan …

Computer Simulation Of Stand-Off Libs And Raman Lidar For Remote Sensing Of Distant Compounds, Dzianis Pliutau

USF Tampa Graduate Theses and Dissertations

Long range stand-off Raman and Laser-Induced Breakdown Spectroscopy (LIBS) lidar signal simulations have been carried out using a modified UV-visible atmospheric transmission program and a modified lidar equation. The Hitran-PC atmospheric transmission program which normally operates over the wavelength range of 400 nm to the far-IR was modified to provide UV atmospheric attenuation (200 nm -- 400 nm) using the optical cross section data contained in the HITRAN database. The two-way lidar equation was modified in order to simulate the one-way propagation of the Raman and LIBS spectral, and thus provide calculations of the expected Raman or LIBS signal as …

Modifiable Factors For Disability: Is There Potential For Reducing Racial Disparities In Disability In Older Age?, Mihaela A. Popa

USF Tampa Graduate Theses and Dissertations

White-Black disparities in disability in the older population are consistently reported in the literature, and are usually ascribed to differences in socio-economic, health, and cognitive status. However, the role of modifiable influences on disability, such as health and lifestyle behaviors or health care utilization on these differences is less clear. This dissertation examines: (1) longitudinal White-Black differences in disability and the potential contributions of distinct health behaviors to these differences; (2) White-Black differences in the effects of health care utilization on trajectories of disability; and (3) whether cognition mediates the effects of health behaviors on disability in Whites and in …

Real Challenges, Virtual Challengers: The Democracy For America Movement, Noah Porter

USF Tampa Graduate Theses and Dissertations

The project examines the effects of Internet use by the social movement organization (SMO) Dean for America/Democracy for America (DFA). This study describes the relationship between Internet usage and SMO beliefs, organization, causes, reasons for joining, strategies, reactions, and effects. Dean for America started out with few resources or supporters, and was seen as an unlikely contender for the 2004 presidential campaign. From its humble beginnings, it skyrocketed from being virtually unknown to frontrunner status in the span of a year. After Howard Dean withdrew from the race in February 2004, Dean for America transformed itself into Democracy for America, …

Factors Perceived To Contribute To Mathematics Avoidance Or Mathematics Confidence In Non-Traditional Age Women Attending A Community College, Jo Ann K Rawley

USF Tampa Graduate Theses and Dissertations

Over the past decade, the number of students entering postsecondary institutions immediately after high school has been decreasing, while the number of non-traditional aged students, defined as adults over 25, has substantially increased, with women making up the majority of this adult student group. Mathematics education is an area where non-traditional age women tend to have difficulty. Fifteen individual interviews were conducted with non-traditional age women enrolled in a community college, 10 identifying mathematics as the subject they would least enjoy and 5 identifying mathematics as the subject they would most enjoy. Data were analyzed by comparing the women's stories …

Determining Habitat Preferences Of The Juvenile Gopher Tortoise (Gopherus Polyphemus) Using Spatially Modeled Vegetation On A Central Florida Sandhill, Kristan Marie Nicole Raymond

USF Tampa Graduate Theses and Dissertations

Public and private conservation areas are becoming increasingly important to the continued survival of the gopher tortoise, making it imperative that land managers know the specific habitat requirements of juvenile gopher tortoises because recruitment is key to species persistence. Little is currently known about environmental factors that underlie hatchling and juvenile survival and recruitment in gopher tortoise populations. Because of the short duration and distance of juvenile tortoise foraging journeys, food availability, thermoregulatory conditions, and refugia near the burrow may considerably affect juvenile growth and survival. This two-year study of a central Florida sandhill examines the spatial relationship between juvenile …

Examining The Issues Surrounding Violating The Assumption Of Independent Observations In Reliability Generalization Studies: A Simulation Study, Jeanine L. Romano

USF Tampa Graduate Theses and Dissertations

Because both validity and reliability indices are a function of the scores on a given administration of a measure, their values can often vary across samples. It is a common mistake to say that a test is reliable when in fact it is not the test that is reliable but the scores on the test that are reliable. In 1998, vacha-haase proposed a fixed-effects meta-analytic method for evaluating reliability that is similar to validity generalization studies called reliability generalization (rg). This study was conducted to evaluate alternative analysis strategies for the meta-analysis method of reliability generalization when the reliability estimates …

Manifestations Of Ebenezer Howard On Disneyland, Michelle M. Rowland

USF Tampa Graduate Theses and Dissertations

While political praise and condemnation of Disney is commonplace in the literature, my research will focus instead on the origination of Disney's design plan for Disneyland and the theoretical and physical connections between key historical figures and the finished product. I will not consider what Disneyland means to the world today---that is a subject many others have covered, some even brilliantly; instead, I will consider what social concepts contributed to the initial design in an attempt to see the underlying values at work in this post-modern utopia. In this thesis, I intend to show that Walt Disney's initial design for …

Credibility Perceptions Of Television And Online News, Charmy G. Sabigan

USF Tampa Graduate Theses and Dissertations

Three major factors influence audience's credibility perception of mediated news on television and on the internet. This study found that reporters' credibility, media credibility, and news credibility had direct influence to the credibility of news presented on both media. Reporters' credibility on both media could be measured by their expertise, intelligence, education, trustworthiness, and authoritativeness. Television and the internet were evaluated differently. Television was measured by its comprehensiveness, concern for the interest of the public, and fairness. The internet was assessed on its trustworthiness, consideration of public interest, and objectivity. News credibility for both media, however, could be evaluated using …

In-Vivo Radiation Diode Dosimetry For Therapeutic Photon Beams, Amarjit Singh Saini

USF Tampa Graduate Theses and Dissertations

In-vivo dosimetry with diode detectors is used in radiation therapy as a quality assurance tool. The diode sensitivity under radiation depends upon temperature, dose rate and SDD (source-to-detector distance), field size, beam angle, and energy. This dissertation presents the first systematic and quantitative study of dosimetric characteristics for most of the commercial radiation diodes (n-type and p-type) under different radiation beams.In the temperature dependence study, the systematic study on the dose rate dependence of svwt (sensitivity variation with temperature) was performed. It was concluded that sufficient preirradiation can eliminate dose rate dependence of svwt. However, preirradiation cannot eliminate dose rate …

The Molluscan And Brachiopod Fauna Of The Late Cretaceous Pierre Shale (Baculites Compressus/Baculites Cuneatus Biozones) Near Kremmling, Colorado, Lanora Ann Sava

USF Tampa Graduate Theses and Dissertations

The Kremmling Paleontological Resource Area (KPRA) contains one of the most fossiliferous units within the Late Cretaceous Western Interior Seaway of North America. It was deposited during the late Campanian Baculites compressus/cuneatus ammonite biozones ((\approx) 72.5 Ma) and records slightly less than one million years of depositional history. Examination of the fauna, its dominant preservational mode and taphonomy as well as the lithologic evidence from measured stratigraphic sections strongly suggests that the depositional environment of the KPRA was a shallow, relatively nearshore environment. A detailed taxonomic examination of the molluscan fauna was undertaken in order to re-evaluate past work as …

An Experimental Analysis Of Activist Message Strategy Effect On Receiver Variables, Andrea Schuch

USF Tampa Graduate Theses and Dissertations

Utilizing communication and activist organization perspectives, this empirical study examined activist message strategies and how they influence variables related to the receiver of activist communication. Specifically, J.E. Grunig's (1997) situational theory of publics and Fishbein and Ajzen's (1975) theory of reasoned action were used to explain the communication effects of the seven activist message strategies developed from Hazleton and Long's (1988) public relations process model. The findings of this study support the premise of situational theory of publics and contribute to the extension of the theory through the inclusion of goal compatibility as a predictor of information seeking behavior and …

Teachers’ Use Of Sensory Activities In Primary Literacy Lessons: A Study Of Teachers Trained In Accelerated Literacy Learning, Margaret E. Stockdale

USF Tampa Graduate Theses and Dissertations

This study investigated Accelerated Literacy Learning (ALL) trained teachers' implementation of sensory activities into their classroom instructional practice. There were 38 participants in Phase One that completed questionnaires using a 5-point response scale to indicate their frequency of use for each of 30 sensory activities. All but one participant reported a high use of sensory activities in their literacy lessons, although the grade level did influence the variety and frequency of their reported use. Most primary level teachers reported a high use on many of the activities. Seven teachers of the participants from Phase One participated in interviews for Phase …