Digital Commons Network^™

Body Image, Attitudes, And Self-Efficacy As Predictors Of Past Behavior And Future Intention To Perform Breast And Skin Self-Examinations, Sari R. Chait

USF Tampa Graduate Theses and Dissertations

Breast self-examinations (BSE) and skin self-examinations (SSE) provide people with a cost-effective and time-efficient approach to the detection of cancer. Given the utility of these self-examination behaviors, it is important to determine who is likely to perform them regularly and why. Prior research has demonstrated a relationship of attitudes and self-efficacy with performance of and intention to practice the exams. Body image, although not previously studied, can be hypothesized to influence performance of these behaviors as well. To address these issues, the current study sought to determine if there are relationships between attitudes, self-efficacy, and body image and the practice …

Landscape Change In The South Prong Alafia River Basin, Kimberly Sarah Koenig

USF Tampa Graduate Theses and Dissertations

West-central Florida has supplied much of the national and global demand for phosphate for over 100 years. The two main tributaries of the Alafia River, the North and South Prongs, have been extensively modified by the strip mining, benefaction, and chemical processing activities associated with the phosphate mining industry. Using aerial photos, an analysis of landscape change in the South Prong Alafia River drainage basin (357.4 km2) between 1940, 1970, and 2004 was conducted. A modified Florida Land Use, Land Cover, and Forms Classification System code (FLUCCS) was used to classify and measure change through the study period. Change in …

The Rhetoric Of Crisis: How We Talk About The Vulnerability Of Youth, Casey Cramer

Undergraduate Theses and Capstone Projects

The classical definition of rhetoric is generally understood to be the art of persuasion. Originating in ancient Greece, rhetoric was one of the three original liberal arts. It focused on effective use of language, most often in the arena of politics and public discourse (Brummett, 35). By mastering persuasive language, politicians were able to shape and sway public opinion in their favor. Conversely, by understanding the mechanics of rhetoric, citizens were able to recognize and interpret speech that was purposefully constructed. The prevalence of rhetoric in political speech made it an integral part of a democratic society - politicians needed …

Awakening Days At Dead River, Edward Curry Woodward

USF Tampa Graduate Theses and Dissertations

Awakening Days at Dead River traces the history of a remote public park in north Hillsborough County that was once a privately-owned riverside enclave with modest cabins, and home to a popular fish camp on the Hillsborough River. The timeframe focuses on the mid-twentieth century to present, with a contextual background of earlier history in the immediate area. The story recounts the adventures and challenges of a select group of homeowners and visitors who experienced life on the Hillsborough and Dead Rivers during that timeframe. It also shows how the area evolved into a public property when regional flood control …

A Family’S Deadly Sin: Fatal Child Abuse In Florida An Anthropological Perspective On Child Deaths Due To Abuse And Neglect, Christa A. Williams

USF Tampa Graduate Theses and Dissertations

This thesis examines child death data in an effort to assist in prevention and intervention, as well as, to provide quantitative and qualitative analysis to improve and enhance policy development around child deaths due to abuse and neglect in Florida. The data reviewed consisted of aggregate data for all incidents of child deaths (N = 266) in Florida where the primary caregiver was the alleged perpetrator of a child fatality for children under age 18. All data examined were recorded and stored in the Department of Children and Families’ Child Safety Assessment database between 1998 and 2000.

According to national …

Design Of Metal-Organic Framework Materials Based Upon Inorganic Clusters And Polycarboxylates, Zhenqiang Wang

USF Tampa Graduate Theses and Dissertations

Network structures based upon metal-organic backbones represent a new class of functional materials that can be rationally constructed by employing the concepts of supramolecular chemistry and crystal engineering. The modularity of design strategies, the diversity of prototypal structures, and the dynamic features of networks have afforded great advantages over traditional materials syntheses. The research presented in this dissertation is primarily concerned with developing an in-depth understanding of the basic principles that govern the supramolecular behaviors of metal-organic frameworks and gaining an experimental control over the structure and function of these new classes of hybrid materials.

The use of rigid and …

Low Voltage Electrochemical Hydrogen Production, Eric P. Weaver

USF Tampa Graduate Theses and Dissertations

Hydrogen production is dependent on natural gas, 90% in the U.S. and 48% of the world’s production. Natural gas supply is dwindling and it’s price is increasing. Greenhouse gases and air pollutants are emitted when natural gas is used. In a single product production facility, coal is not competitive with natural gas for hydrogen production at current prices. Hydrogen production by direct electrochemical dissociation of water requires a relatively high voltage.

Techniques have been developed for manufacturing hydrogen as a lucrative byproduct of IGCC electric power generation, refinery sulfur production and sulfuric acid production for fertilizer production. Laboratory experiments have …

Statistical Environmental Models: Hurricanes, Lightning, Rainfall, Floods, Red Tide And Volcanoes, Rebecca Dyanne Wooten

USF Tampa Graduate Theses and Dissertations

This study consists of developing descriptive, parametric, linear and non-linear statistical models for such natural phenomena as hurricanes, lightning, flooding, red tide and volcanic fallout. In the present study, the focus of research is determining the stochastic nature of phenomena in the environment. These statistical models are necessary to address the variability of nature and the misgivings of the deterministic models, particularly when considering the necessity for man to estimate the occurrence and prepare for the aftermath.

The relationship between statistics and physics looking at the correlation between wind speed and pressure versus wind speed and temperature play a significant …

A Comparison Of The Perceived Performance Of Mentoring Functions Of National Boardcertified And Non-National Board-Certified Teachers With Their Protégés, Amy Jo Smith Wilson

USF Tampa Graduate Theses and Dissertations

National Board-certified (NBC) teachers are recognized as accomplished teachers who have met the National Board’s stringent standards. These teachers are encouraged to serve as mentors to novice teachers and veteran teachers in candidacy for National Board Certification. This study identified and compared the career and psychosocial mentoring functions that NBC teacher mentors and non-NBC teacher mentors perceived they provided to their protégés at the elementary grade levels. National Board-certified protégés’ perceptions of having the functions provided were compared with those of their teacher mentors and with the protégés of non-NBC teacher mentors.

The research was conducted in a large urban …

The Sertoli Cell-Spermatid Junctional Complex: A Potential Avenue For Male Contraception, Katja Margrit Wolski

USF Tampa Graduate Theses and Dissertations

The Sertoli cell ectoplasmic specialization is a specialized domain of the calcium-dependent Sertoli-spermatid adherens junction. Structurally abnormal or absent Sertoli ectoplasmic specializations are associated with spermatid sloughing and subsequent oligospermia in conditions associated with reduced fertility potential, although the junctional strength between these cells is not known. Adjudin is a potential male contraceptive agent thought to interrupt testicular binding dynamics of adherens junctions, resulting in controlled spermatid sloughing.

It was hypothesized that the mechanism of action of Adjudin, pertinent to its putative contraceptive effect, is the disruption of the Sertoli cell-spermatid junction. This was tested in vitro using primary isolates …

The Bloomberg Way: Development Politics, Urban Ideology, And Class Transformation In Contemporary New York City, Julian Brash

Dissertations, Theses, and Capstone Projects

This dissertation explores the links between a development project, a particular urban ideology, and processes of class transformation in contemporary New York City. The city's postindustrial transformation, especially since the 1970s fiscal crisis, has created a newly dominant corporate elite consisting of executives and high-level professionals. This ruling class alliance has begun to supersede the city's older, real estate-centered traditional growth coalition, as emblematized by the political rise of billionaire ex-CEO Michael Bloomberg. Mayor Bloomberg, along with other ex-corporate executives in his administration, implemented a private-sector inspired corporate, technocratic, and antipolitical approach to governance in general and urban and economic …

The Relationship Between Sleep, Behavior, And Pre-Academic Skills In Pre-Kindergarteners, Rachel B. Witte

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to examine prevalence rates of several sleep disorders symptoms in young children, and the relationship between symptoms of pediatric sleep disorders and other childhood problems. Eighty-six children aged 3 to 5 years were studied through parent report and academic assessment. Children rated as high risk for having a sleep disorder displayed more externalizing and internalizing problems, less developed social skills, and lower scores on a measure of pre-academic skills, as compared to children whose sleep was rated in the normal range. It was found that 33% of children were at high risk for having …

Measuring Social Stressors In Organizations: The Development Of The Interpersonal Conflict In Organizations Scale (Icos), Valentina Bruk Lee

USF Tampa Graduate Theses and Dissertations

Interpersonal conflict in organizations has been recognized as a leading social stressor across occupations with detrimental effects on employee well-being and organizational outcomes. However, reliable and valid measures of conflict are scarce and even the most widely used scales are limited by weaknesses in construct definition. In order to address the need for an improved measurement tool, the 63-item Interpersonal Conflict in Organizations Scale (ICOS) was developed. The ICOS was based on a comprehensive conceptualization of conflict that defines the construct on the basis of three definitional components: disagreement, interference, and negative emotion (Barki & Hartwick, 2004). In addition, the …

Uncontrollable And Unpredictable Stress With A Reminder Experience Induces Long-Lasting Effects On Physiology And Behavior: A Novel Approach To Modeling Post-Traumatic Stress Disorder In Rats, Phillip R. Zoladz

USF Tampa Graduate Theses and Dissertations

People who endure horrific, life-threatening experiences are at risk for developing post-traumatic stress disorder (PTSD). However, only about 25% of all individuals who experience trauma develop PTSD. Recent research indicates that the presence of certain physiological conditions, such as reduced cortisol and parasympathetic inhibition, during trauma may increase one's susceptibility to developing PTSD. Thus, I attempted to develop a novel animal model of PTSD and test the hypothesis that reduced adrenal and parasympathetic activity during stress would exacerbate its long-term effects on behavior.

In Experiment One, adult male rats were exposed to two stress sessions, each involving one hour of …

The Internal Odyssey Of Identity: James Baldwin, Go Tell It On The Mountain, And History., Brent Nelson Lamons

Electronic Theses and Dissertations

This study investigates how James Baldwin thought about history and treats his first novel as an important document in extricating his construct of the past. A close reading of the work reveals that it is an examination rather than a symptom of two powerful forces that dominate Baldwin's psychology, his father and his history.

James Baldwin felt the individual interpretation of one's experience is just as important as the experience itself. The novel is an informative exposition of how people interpret their experience and how that interpretation affects their psychology. Through Go Tell It on the Mountain Baldwin recreates the …

Hydrogen Isotopic Ratios Of Algal And Terrestrial Organic Matter In Lake Tulane, Florida: From A Modern Calibration To The Reconstruction Of Paleoclimatic And Paleohydrologic Conditions, Eric Charles Cross

USF Tampa Graduate Theses and Dissertations

Recent sedimentary records have indicated that climate in low latitude, continental environments have varied significantly throughout the mid to late Holocene. In subtropical North America, major climatic phenomena such as the migration of the Intertropical Convergence Zone (ITCZ) and the Bermuda High have been shown to play a major role in this variability. Specifically, the northward migration of the ITCZ and the eastward position of the Bermuda High during summer months leads to warmer and wetter conditions over subtropical North America, and vice versa. A quantitative approach to understanding hydrologic dynamics (i.e. atmospheric circulation patterns, relative humidity) associated with these …

Development Of An End-Effector Sensory Suite For A Rehabilitation Robot, Stephanie A. Stiber

USF Tampa Graduate Theses and Dissertations

This research presents an approach in assisting the control and operation of a rehabilitation robot manipulator to execute simple grasping tasks for persons with severe disabilities. It outlines the development of an end-effector sensory suite that includes the BarrettHand end-effector, laser range finder, and a low cost camera.

The approach taken in this research differs greatly from the currently available rehabilitation robot arms in that it requires minimal user instruction, it is easy to operate and more effective for persons severely disabled. A thorough study of the currently available systems; Manus, Raptor and Kares II arm, is also presented.

In …

Small Scale Distribution Of The Sand Dollars Mellita Tenuis And Encope Spp. (Echinodermata), James P. Swigart

USF Tampa Graduate Theses and Dissertations

Small scale distributions of Mellita tenuis and Encope spp. were quantified at Fort De Soto Park on Mullet Key, off Egmont Key and off Captiva Island, Florida during 2005. Off Captiva Island, Encope spp. were aggregated in 33.3% of plots in March. Off Egmont Key, M. tenuis were aggregated in 100% of plots in March but in no plots in September. At Fort De Soto Park, M. tenuis were aggregated in 37.5% of plots in May 12.5% in July and 50.0% in September. Sand dollars in 6.3% of the plots in September at Fort De Soto had a uniform distribution. …

Electrical Characterization Of Metal-To-Insulator Transition In Iron Silicide Thin Films On Silicon Substrates, Hasitha C. Weerasinghe

USF Tampa Graduate Theses and Dissertations

Iron Silicide (FeSi) films deposited on silicon substrates with the native SiO₂ layer have shown a Metal-to-Insulator Transition (MIT) of more than four order of magnitude change in resistance. Modification of the SiO2/Si interface due to Fe diffusion has been attributed to the formation of this effect. In this research a systematic experimental investigation has been carried out to study the effect of the growth parameters and substrate doping type in the transition. In addition, transport properties of continuous and discontinuous films have been investigated to understand the mechanism of this metal-to-insulator transition.

Four probe measurements of films deposited …

Assessment Of Occupational Heat Strain, Margaret Wan

USF Tampa Graduate Theses and Dissertations

Assessment of heat strain considers an individual’s tolerance and indicates the risk and physiological cost of working in hot environments. This study evaluated the discrimination ability of metrics of heat strain. The null hypotheses were that (1) the metrics individually could not discriminate between acceptable and unacceptable heat strain, (2) there were no significant differences among these metrics, and (3) there were no significant differences in the applicability of the metrics due to clothing or heat stress level.

The experimental design was a case crossover. Clothing and heat stress level were potential confounders. Two clothing ensembles were work clothes and …

Geophysical Investigations And Groundwater Modeling Of The Hydrologic Conditions At Masaya Caldera, Nicaragua, Richard Eric Macneil

USF Tampa Graduate Theses and Dissertations

Masaya volcano, Nicaragua, has been the site of tremendous Plinian basaltic eruptions. Two eruptions ~6,500 and 2,250 BP formed the 6 kilometer (km) x 11 km, northwest trending Masaya caldera. The present day active Santiago Crater within the caldera is the site of persistent volcano degassing and occasional phreatic explosions. While the mechanism responsible for these phreatic explosions is unclear, one possible explanation is the interaction of groundwater with the shallow magma chamber beneath Masaya. This interaction with meteoric water is supported by the substantial steam discharge from the vent, which is significantly larger than other similar volcanoes in the …

An Evaluation Of The Relationship Between Stress, Depression, And Glycemic Control In Low-Income Patients With Type 2 Diabetes, Kristen Jennifer Wells

USF Tampa Graduate Theses and Dissertations

People in low socioeconomic status groups are at increased risk for diabetes mellitus, a group of diseases associated with high levels of blood glucose. High rates of depression have been found in people with diabetes. The study examined the relationship between stress, depression, and glycemic control in low-income type 2 diabetes patients. Participants were recruited at two community health centers that provide free medical care. The following hypotheses were examined: (1) experiencing stressful life events is positively correlated with blood glucose level; (2) negative stressful events have a greater association with glucose level than positive stressful events; (3) depression mediates …

The Reaction To Economic Globalization In Latin America: A Case Study Of Argentina, Lisa A. Warner

USF Tampa Graduate Theses and Dissertations

Since Washington Consensus policies became predominant in the 1980s, two sides of the economic globalization debate have developed: advocates claim that trade liberalization, deregulation, privatization and reduced state spending increase growth and therefore reduce poverty, while critics claim that levels of poverty and income disparity have worsened at the same time that social welfare and education programs have suffered budget cuts. Over the past decade, as many Latin Americans have failed to see promised results to alleviate poverty stemming from the "lost decade" of the 1980s (and beyond), they have elected "leftist" presidents that campaigned on anti-economic globalization (or anti-neoliberal) …

Knowledge-Based Video Compression For Robots And Sensor Networks, Chris Williams Williams

USF Tampa Graduate Theses and Dissertations

Robot and sensor networks are needed for safety, security, and rescue applicationssuch as port security and reconnaissance during a disaster. These applications rely on realtimetransmission of images, which generally saturate the available wireless networkinfrastructure. Knowledge-based Compression is a strategy for reducing the video frametransmission rate between robots or sensors and remote operators. Because images mayneed to be archived as evidence and/or distributed to multiple applications with differentpost processing needs, lossy compression schemes, such as MPEG, H.26x, etc., are notacceptable. This work proposes a lossless video server system consisting of three classesof filters (redundancy, task, and priority) which use different levels …

A Mechanized Horseback Riding Simulator As An Aid To Physical Therapy, Jennifer Lott

USF Tampa Graduate Theses and Dissertations

Equine-assisted therapy is a nontraditional form of physical therapy that involves riding horses as a form of rehabilitation. Limited access to these riding programs justifies a need to develop a horseback riding simulator capable of simulating the gaits, bend, and collection of the horse. Research involving the development of horseback riding simulators is limited, but the available research does show promising results in the ability to aid in physical therapy.

A two-dimensional model and simulation was developed using MATLAB. Using the results from the simulation, a horseback riding simulator was designed, fabricated and tested. The physical simulator was capable of …

Study Of Upward-Facing Spray Cooling With Water At Atmospheric Pressure, Alberto D. Sato

USF Tampa Graduate Theses and Dissertations

Spray cooling is a high heat removal technique which has been used widely in many industries, especially metallurgical, where the control of the temperatures of metals is an important factor to obtain the desired microstructure; and also in microelectronics where is very important to obtain high heat fluxes at relatively low surface temperatures. In this study, an open loop spray cooling system has been fabricated to provide an upward-facing spray over a 12 mm diameter test surface. A full cone spray nozzle was used to deliver deionized water to the test surface at five pressures (10, 15, 20, 25 and …

Mining Medical Data In A Clinical Environment, Tim V. Ivanovskiy

USF Tampa Graduate Theses and Dissertations

The availability of new treatments for a disease depends on the success of clinical trials. In order for a clinical trial to be successful and approved, medical researchers must first recruit patients with a specific set of conditions in order to test the effectiveness of the proposed treatment. In the past, the accrual process was tedious and time-consuming. Since accruals rely heavily on the ability of physicians and their staff to be familiar with the protocol eligibility criteria, candidates tend to be missed. This can result and has resulted in unsuccessful trials.A recent project at the University of South Florida …

The Shift In United States Foreign Policy In The Middle East Since 1989, Brandon M. Ward

USF Tampa Graduate Theses and Dissertations

A bi-polar world emerged at the end of World War II. The United States and the Soviet Union were the world’s superpowers and tensions between them spiraled consequently bringing about the Cold War. United States foreign policy during the Cold War revolved around containment policy. The Middle East during the Cold War was a region that the bi-polar world’s superpowers wanted to influence, and protect. The United States during the Cold War warned the Soviet Union through presidential doctrines that it would fight to keep the Middle East from communism, and the Soviet Union’s influence.

The bi-polar international power structure …

The Role Of Organizational Culture In The Delivery Of Humanitarian Assistance And Inter-Organizational Collaboration, Jamie Antoinette Wilke Corvin

USF Tampa Graduate Theses and Dissertations

The international community has seen a dramatic increase in the complexity of aid operations, with increasing numbers of donors participating in humanitarian aid endeavors. Therefore, it is essential to determine factors that contribute to successful aid delivery. In an effort to guide more effective and efficient aid operations, this study investigated organizational culture in three distinct types of humanitarian organizations: (a) the U.S. military, (b) the International Federation of the Red Cross, and (c) a sampling of local and indigenous non-governmental organizations. Being a relatively unexplored area, this study took an exploratory approach, utilizing qualitative methods to analyze humanitarian aid …

Establishing A Functional Analysis Protocol For Examining Behavioral Deficits Using Social Withdrawal As An Exemplar, Melissa Penaranda Walters

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to establish a functional analysis protocol for examining behavioral deficits, using social withdrawal as an exemplar. A review of the Journal of Applied Behavior Analysis over the past 10 years found that although the current behavior analytic literature contains extensive studies that functionally analyze behavioral excesses, there is a limited amount of studies that analyze deficits. The rationale behind this study was the notion that although behavioral deficits are rarely studied, the fact that the participant is capable of the behavior yet fails to engage in it leads to the idea that certain events …