American Studies Commons^™

An Examination Of The Impact Of Preconception Health On Adverse Pregnancy Outcomes Through The Theoretical Lens Of Reciprocal Determinism, Mary Elizabeth Buie

USF Tampa Graduate Theses and Dissertations

Statement of Purpose

The purpose of this study is to examine the impact of preconception health on adverse pregnancy outcomes through the theoretical lens of reciprocal determinism. Thus, this study aims to develop a preconception health conceptual framework that accounts for the interactive relationships among behavior, the environment, and the person.

Rationale for the Study

Women may not recognize a pregnancy until the first or second missed menstrual cycle, a full four to eight weeks or more after conception. Once a woman realizes the possibility of a pregnancy, it takes further time to confirm the pregnancy with a home pregnancy …

Thermo-Mechanical Beam Element For Analyzing Stresses In Functionally Graded Materials, Simon Caraballo

USF Tampa Graduate Theses and Dissertations

Modeling at the structural scale most often requires the use of beam and shell elements. This simplification reduces modeling complexity and computation requirements but sacrifices the accuracy of through-the-thickness information. Several studies have reported various design approaches for analyzing functionally graded material structures. One of these studies proposed a two-node beam element for functionally graded materials (FGMs) based on first order shear deformable (FOSD) theory. The derivation of governing equations included spatial temperature variation. However, only the constant temperature case was carried through in the element formulation. This investigation explore the effects of spatial temperature variation in the axial and …

A Structural Equation Analysis Of Family Accommodation In Pediatric Obsessive-Compulsive Disorder, Nicole Elise Caporino

USF Tampa Graduate Theses and Dissertations

Family accommodation of symptoms conflicts with the primary goals of cognitive-behavioral therapy for pediatric obsessive-compulsive disorder (OCD) and can be an obstacle to positive outcomes. This study examined a structural equation model of parent and child variables related to family accommodation using a sample of 65 parent-child dyads recruited from a university-based clinic. Additionally, parents' motivations for engaging in accommodation were explored. Results generally supported the hypothesized model. Family accommodation mediated the relationship between OCD symptom severity and parent-rated functional impairment, child internalizing problems mediated the relationship between parent anxiety and family accommodation, and parent empathy and consideration of future …

The Impact Of An Online Learning Community Project On University Chinese As A Foreign Language Students' Motivation, Shengrong Cai

USF Tampa Graduate Theses and Dissertations

This study empirically investigated the impact of an online learning community project on university students' motivation in learning Chinese as a foreign language (CFL). A newly-proposed L2 motivation theory - the L2 motivational self system (Dörnyei 2005; 2009) - was used as the theoretical framework for this study. The three aspects of motivation (ideal L2 self, ought-to L2 self, and L2 learning experience), as described in this theory, were measured before and after the online project. Specific motivating and demotivating features of the online project were generated from participants' responses. Four individuals with different heritage and technology backgrounds were selected …

A Comparative Historical Analysis Of Post-War Moral Panics And The Construction Of Youth From 1938 To 2010, Judy L. Castillo

USF Tampa Graduate Theses and Dissertations

For the past 50 years, various moral panics have emerged in response to concerns about children and teens. In particular, interest in entertainment appealing to youth has been the focus of social and legislative changes aimed at protecting youth from increased sexual and violent content associated with comic books, music lyrics, Internet content, and film and television.

The intent of this study is to compare the emergence and progression of moral panics related to entertainment appealing to youth, such as comic books, music lyrics, the Internet, and film and television, since 1938 to 2010 to better understand the ways we …

The Existential Compromise In The History Of The Philosophy Of Death, Adam Buben

USF Tampa Graduate Theses and Dissertations

I begin by offering an account of two key strains in the history of philosophical dealings with death. Both strains initially seek to diminish fear of death by appealing to the idea that death is simply the separation of the soul from the body. According to the Platonic strain, death should not be feared since the soul will have a prolonged existence free from the bodily prison after death. With several dramatic modifications, this is the strain that is taken up by much of the mainstream Christian tradition. According to the Epicurean strain, death should not be feared since the …

Opportunity To Learn (Otl) And The Alignment Of Upper Division Mathematics Learning Outcomes, Textbooks, And The National Assessment In Belize, Gabriel Cal

USF Tampa Graduate Theses and Dissertations

In this study I investigate the degree of alignment among the learning outcomes, textbooks, and the national assessment in Belize. To establish the degree of alignment, Webb‘s Four Cognitive Levels of Depth of Knowledge was used to analyze the levels of cognitive demand for each curriculum. The degree of alignment of the learning outcomes with the test items and textbooks was used to determine the extent to which the textbooks provide students with the opportunity to study the learning outcomes assessed by the national assessment. The opportunity to learn (OTL) measures addressed were the curricular content coverage and types of …

Supercritical Fluid Aided Microencapsulation Of Dry Powders, Raquel Carvallo

USF Tampa Graduate Theses and Dissertations

Coating of fine particles to produce tailored surface properties is currently a key development for supercritical fluids applications, in different areas such as: pharmaceutical, nutraceutical, cosmetic, agrochemical, electronic and specialty chemistry industries. During the encapsulation process the particles surface can be designed with specific properties by spreading a thin film coating material over the surface of the particles.

Chitosan, a natural polymer, was used in this work as the encapsulant material. Chitosan is biocompatible, biodegradable to normal body constituents, safe, non-toxic, bacteriostatic, anticancerogen, and versatile polymer. These attributes are among the properties that make Chitosan an attractive component of pharmaceutical …

Misperceptions Of Social Rejection: A Closer Examination Of Inter-Rater Discrepancies, Casey Dean Calhoun

USF Tampa Graduate Theses and Dissertations

Previous research suggests that discrepant ratings of symptoms, behaviors, and competencies may have important implications for childhood adjustment. Consequently, several theoretical explanations regarding the meanings and implications of inter-rater discrepancies have been proposed. The current study examined several largely unexplored issues regarding the statistical and conceptual properties of discrepant ratings; these include heterogeneity of agreement, shared method variance, and direction-specific effects. In a sample of 384 seventh and eighth-grade adolescents, it was found that each of the issues is integral in the interpretation of significant relationships between discrepant ratings of social rejection and childhood adjustment variables. More specifically, results demonstrated …

A Comparative Study Of Eucalanoid Copepods Residing In Different Oxygen Environments In The Eastern Tropical North Pacific: An Emphasis On Physiology And Biochemistry, Christine J. Cass

USF Tampa Graduate Theses and Dissertations

The eastern tropical north Pacific (ETNP) is characterized by one of the ocean's most severe midwater oxygen minimum zones (OMZs), where oxygen levels are often less than 5 µM. The copepod family Eucalanidae is a numerically abundant and diverse zooplankton group in the ETNP, and displays a wide range of vertical distributions related to environmental oxygen concentrations. The goal of this dissertation was to develop a better understanding of the ecology, physiology, and biochemistry of closely related copepod species (family Eucalanidae) that inhabit the ETNP OMZ system. This was accomplished through examining different parameters relating to (1) metabolic rates, (2) …

A Modeling Analysis Of Dissolved Carbon Dioxide Discharged From Howard F. Curren Advanced Wastewater Treatment Plant, Dustin Capps

USF Tampa Graduate Theses and Dissertations

Currently, the US Environmental Protection Agency primarily regulates the discharge of dissolved nitrogen and phosphorous from wastewater treatment plants in the United States. A recent study has shown that the treated effluent of many plants contains concentrations of dissolved carbon dioxide well above the expected theoretical equilibrium concentration of 0.6 mg/L, indicating that carbon dioxide may have been overlooked as a possible pollutant in receiving waters. For this reason, it is necessary to examine the possible presence of a discharge plume containing high levels of dissolved CO2 downstream from the outfall of a major wastewater treatment plant in Tampa, Florida. …

Sexually Explicit, Socially Empowered: Sexual Liberation And Feminist Discourse In 1960s Playboy And Cosmopolitan, Lina Salete Chaves

USF Tampa Graduate Theses and Dissertations

In this thesis, I provide an analysis of 1960s American popular culture by examining Playboy, "The Playboy Philosophy," Cosmopolitan, and Sex and the Single Girl. These cultural artifacts furthered the feminist movement by challenging gender structures and sexuality. I discuss how these publications focused on the advancement of the individual through careerism, consumerism and sexuality. These publications assisted in challenging and breaking down various aspects of gender and sexual boundaries and assisted in reworking social limitations that kept women from advancing themselves outside of the pre-set gender roles of domesticity. Regardless of the traditional feminist critique of …

Generalizations Of A Laplacian-Type Equation In The Heisenberg Group And A Class Of Grushin-Type Spaces, Kristen Snyder Childers

USF Tampa Graduate Theses and Dissertations

In [2], Beals, Gaveau and Greiner find the fundamental solution to a 2-Laplace-type equation in a class of sub-Riemannian spaces. This fundamental solution is based on the well-known fundamental solution to the p-Laplace equation in Grushin-type spaces [4] and the Heisenberg group [6]. In this thesis, we look to generalize the work in [2] for a p-Laplace-type equation. After discovering that the "natural" generalization fails, we find two generalizations whose solutions are based on the fundamental solution to the p-Laplace equation.

Assessing Racial Differences In Offending Trajectories: A Life-Course View Of The Race-Crime Relationship, Michael S. Caudy

USF Tampa Graduate Theses and Dissertations

The developmental and life-course criminology (DLC) paradigm has become increasingly popular over the last two decades. A primary limitation of this paradigm is the lack of consideration of race and ethnicity within its framework. Race unquestionably matters in today's society and yet it has generally been ignored within the context of DLC theories. The current study aims to contribute to the literature informing DLC by viewing life-course theories through the lens of race and ethnicity. Utilizing nationally-representative data from the National Longitudinal Survey of Youth 1997, the current study examines race-specific developmental trajectories of offending over 11 years during the …

Capital Structure, Credit Ratings, And Sarbanes-Oxley, Kelly E. Carter

USF Tampa Graduate Theses and Dissertations

Since Sarbanes-Oxley (SOX) is an exogenous shock to the information environment of U.S.-listed firms, those firms might adjust their capital structures to reflect the new information environment. Using univariate and multivariate tests, including differences-in-differences, I examine SOX's effect on the capital structure of U.S.-listed firms relative to Canadian firms listed in Canada, which are treated as control firms since they are not subject to SOX. The results indicate that, after the passage of SOX, U.S.-listed firms raise their long-term debt ratios by two to three percentage points, relative to the control group. U.S. firms listed in the U.S. drive this …

Associations Between Adolescents' Family Stressors, Life Satisfaction And Substance Use, Ashley Chappel

USF Tampa Graduate Theses and Dissertations

Current literature suggests that family stressors are positively related to adolescent psychopathology; however, few studies have examined the relationship between family stressors and positive indicators of mental health, such as life satisfaction. Additionally, past literature has found support for life satisfaction as a mediating variable between environmental experiences (i.e., parent-child relationships, major life events) and adolescent psychopathology. Research questions answered in the current study pertain to: (a) the relationship between family stressors (i.e., socio-economic status, family structure, major life events, interparental conflict) and adolescents' life satisfaction, (b) the overall contribution of family stressors to life satisfaction and which stressors are …

Disparities In Survival And Mortality Among Infants With Congenital Aortic, Pulmonary, And Tricuspid Valve Defects By Maternal Race/Ethnicity And Infant Sex, Colleen Conklin

USF Tampa Graduate Theses and Dissertations

Background: The etiology of congenital heart valve defects is not well understood; little is known about the risk factors that contribute to the survival and mortality outcomes of children with these defects.

Methods: Using data from the Texas Birth Defects Registry (TBDR) we conducted a retrospective cohort study of 2070 singleton infants with congenital aortic, pulmonary, or tricuspid valve atresia or stenosis born in Texas between January 1, 1996 and December 31, 2007 to Hispanic, Non-Hispanic (NH) black, and NH white women. TBDR data were death-to-birth matched by the Texas Vital Statistics Unit for deaths between January 1, 1996 and …

Novel Magnetic Materials For Sensing And Cooling Applications, Anurag Chaturvedi

USF Tampa Graduate Theses and Dissertations

The overall goals of the present PhD research are to explore the giant magnetoimpedance (GMI) and giant magnetocaloric (GMC) effects in functional magnetic materials and provide guidance on the optimization of the material properties for use in advanced magnetic sensor and refrigeration applications.

GMI has attracted growing interest due to its promising applications in high-performance magnetic sensors. Research in this field is focused on the development of new materials with properties appropriate for practical GMI sensor applications. In this project, we have successfully set up a new magneto-impedance measurement system in the Functional Materials Laboratory at USF. We have established, …

A Tale Of Two Kings: The Use Of King David In The Chronicle Of Pere Iii Of Catalonia, Marrissa Lynne Cook

USF Tampa Graduate Theses and Dissertations

Pere III of Catalonia (1319-1387) began his reign in 1336. As count-king, he reigned over Aragon, Catalonia, and Valencia. The Chronicle of Pere III of Catalonia covers the years 1319-1369, fifty years of a nearly seventy year life. Pere wrote this chronicle in collaboration with his chancery office. Bernat Descoll was the main contributor from the chancery, and he consulted with the king as he wrote it. The chronicle reflects spiritual justifications for actions that occurred during Pere's reign, such as his conflict with the Uniòns of Aragon and Valencia, as well as his conflict with Pedro I of Castile. …

Geochemical Systematics Among Amphibolitic Rocks In The Central Blue Ridge Province Of Southwestern North Carolina, Nathan Collins

USF Tampa Graduate Theses and Dissertations

The Central Blue Ridge sub-province of the southern Appalachian Mountains preserves an unique and complex geologic history. The Cartoogechaye terrane is the westernmost terrane of the Central Blue Ridge sub-province, and is characterized by extensive olistostromal sequences, including mafic-ultramafic massifs, isolated mafic units, and block-in-matrix structures of varying scales. This study investigates the genetic and tectonic relationships, and regional chemical and metamorphic trends of the amphibolitic rocks entrained within units of the Cartoogechaye and nearby terranes, toward constraining the origins of these regional sequences, and examining the rationale for the current Blue Ridge terrane designations.

A distinct compositional variation exists …

Repression/Incitement: Double-Reading Vita Sackville-West's The Edwardians Through Freud And Foucault, Aimee Elizabeth Coley

USF Tampa Graduate Theses and Dissertations

Vita Sackville-West's autobiographical novel The Edwardians lends itself to a double reading: both Freudian and Foucauldian. The Freudian conflict between desire and prohibition plays out in the unresolved Oedipus complex of its protagonist Sebastian, son of the Duchess of Chevron; repression drives Sebastian's behavior in all his relationships. The novel also depicts an upper-class Edwardian society incited to discourse in a Foucauldian sense--a society in which sexual gossip functions as a discourse of power. From a psychoanalytic perspective, this incitement is produced by repression, and functions as a symptom of it. The relationship between repression and incitement suggests the possibility …

Modeling Roadside Safety Hazards To Predict Annual Crash Cost To Encroaching Vehicles In Rural Road Networks, Isidro Delgado

USF Tampa Graduate Theses and Dissertations

Roadside crashes account for a large portion of total fatal crashes that occur annually in the United States. About 30% of those fatalities are the result of single vehicle run-off-road crashes. A large proportion of these fatal crashes occur in rural roads when vehicles depart from the travel lane and collide with trees or other roadside safety hazards. Many of these run-off-road accidents occur in local roads that carry traffic volumes between 1,000 and 20,000 vehicles per day. Many of these roads are part of the jurisdiction of county authorities faced with the dilemma of having too many "potentially dangerous" …

When Does The Straw Break The Camel's Back?: Examination Of The Exclusion-Elicited Anti-Social Behavior Model, Douglas Phillip Cooper

USF Tampa Graduate Theses and Dissertations

Being excluded should motivate pro-social behaviors. Yet, exclusion can incite aggressive and anti-social responses. Two studies were conducted to examine how frequent experiences of exclusion impact self-esteem, perceptions that exclusion is typical of social experiences, and anti-social behaviors. In Study 1, participants completed pre and post-measures of exclusion typicality and self-esteem and reported, over eight weeks, feelings of exclusion and state self-esteem. Results supported the hypotheses in that experiences feeling excluded have direct and indirect effects on state and trait self-esteem as well as on exclusion typicality. In Study 2, participants were exposed to an exclusion manipulation and subsequent aggressive …

Inhibition Of P53 Dna Binding Function By The Mdm2 Acidic Domain, Brittany Lynne Cross

USF Tampa Graduate Theses and Dissertations

MDM2 regulates p53 predominantly by promoting p53 ubiquitination. However, ubiquitination-independent mechanisms of MDM2 have also been implicated. Here we show that MDM2 inhibits p53 DNA binding activity in vitro and in vivo. MDM2 binding promotes p53 to adopt a mutant-like conformation, losing reactivity to antibody Pab1620, while exposing the Pab240 epitope. The acidic domain of MDM2 is required to induce p53 conformational change and inhibit p53 DNA binding. ARF binding to the MDM2 acidic domain restores p53 wild type conformation and rescues DNA binding activity. Furthermore, histone methyl transferase SUV39H1 binding to the MDM2 acidic domain also restores p53 wild …

Perceived Leadership Practices Of Student Affairs Professionals: An Analysis Of Demographic Factors., Edwing Delamour Daniel

USF Tampa Graduate Theses and Dissertations

Student affairs professionals in higher education are expected to provide leadership in many ways on their campuses. Obtaining a more complete picture of the leadership characteristics of the profession is therefore important in informing those in the profession who provide continuing professional development programming and for those who teach in graduate student affairs programs. The purpose of this quantitative research study was to determine whether there were differences in the perceived leadership practices of student affairs professionals when analyzed by the independent variables of race, gender, level of current position, age, and highest degree earned.

The instrument used in this …

Analysis Of Ahr Expression And Stability In A Recombinant Yeast Model System, Sarah Elizabeth Cuccinello

USF Tampa Graduate Theses and Dissertations

The aryl hydrocarbon receptor (Ahr) and the aryl hydrocarbon receptor nuclear translocator (Arnt) are well characterized bHLH-PAS transcription factors shown to regulate expression of xenobiotic metabolism genes. Extensive study has shown that upon treatment with certain aromatic hydrocarbons, mammalian cells rapidly activate the Ahr signaling pathway in order to stimulate gene expression and attempt to metabolize the xenobiotic compounds. It has been shown that after DNA-binding, the Ahr but not the Arnt protein, is quickly eliminated from the nuclear compartment thereby attenuating the dose of gene regulation administered by the Ahr*Arnt transcription factor complex. Previous studies have implicated involvement of …

Lead Discovery And Optimization Strategies Towards The Development Of 4(1h)-Quinolones And 1,2,3,4-Tetrahydroacridone Analogs With Antimalarial Activity, Richard Matthew Cross

USF Tampa Graduate Theses and Dissertations

The goal of our research endeavor was to successfully employ modern lead discovery and optimization strategies towards the development and identification of compounds possessing antimalarial activity. Preliminary data from in vitro screening at the Walter Reed Army Institute of Research identified several chemotypes including 4(1H)-quinolones and 1,2,3,4-tetrahydroacridones to have potent antimalarial activities. Multiple synthetic routes were devised and implemented which enabled the rapid preparation and isolation of over 400 structurally diverse 4(1H)-quinolones and 1,2,3,4-tetrahydroacridones.

Our research towards discovering and optimizing antimalarials was inspired from the severe impact malaria has had on our planet especially on impoverished countries. There are over …

Microbial Landscapes Of Corals And Ctenophores, Camille Arian Daniels

USF Tampa Graduate Theses and Dissertations

As technology and engineering allow mankind to survey nature at finer scales, the importance of bacteria has been elucidated in their metabolic diversity, ability to transfer genetic information, involvement in biogeochemical cycling, and sheer abundance. With an individual domain of life unto themselves, this diverse group of microorganisms plays an integral role in facilitating life on land and in the oceans, and is second only to viruses in abundance on Earth. They carve niches in a wide range of environments, including those inhospitable to other life forms, and reside in concert or to the detriment of other microbes and/or hosts …

"Can't Buy Me Wealth": Racial Segregation And Housing Wealth In Hillsborough County, Florida, Natalie Marie Delia Deckard

USF Tampa Graduate Theses and Dissertations

Informed by the literature regarding the gap in wealth between white and non-white households in the United States, as well as the literature on segregation and neighborhood preference, this research explores the home value component of the wealth gap in Hillsborough County, Florida. It finds that homes in Predominantly Black or Hispanic neighborhoods are not only undervalued compared to Predominantly White and heterogeneous neighborhoods, but have appreciated more slowly at least since 2000. The research also finds that buyers identifying as black or Hispanic are more likely than those identifying as white or "other" to purchase homes in Predominantly Black …

The Dirt On Prehispanic Water Management At Palmarejo, Honduras, Zaida Darley

USF Tampa Graduate Theses and Dissertations

Water is an essential resource for human life. Even in the tropical environment of the Maya Lowlands, water scarcity is a concern, because the region cycles between abundant rainfall and seasonal droughts. To understand how societies flourished during periods of water scarcity, archaeologists have studied prehispanic water management in the Maya Lowlands. Yet, water management research has tended to focus predominantly on large urban Maya populations, excluding smaller-scale societies that face the same challenges associated with water scarcity. This study investigates the neighboring non-Maya society of Late Classic (A.D.650-900) Palmarejo in northwestern Honduras to explore how water management was organized …