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Full-Text Articles in Arts and Humanities

Landscape Change In The South Prong Alafia River Basin, Kimberly Sarah Koenig Dec 2006

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

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 ...


Measuring Social Stressors In Organizations: The Development Of The Interpersonal Conflict In Organizations Scale (Icos), Valentina Bruk Lee Aug 2006

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

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 ICOS ...


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 Jul 2006

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

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 ...


Development Of An End-Effector Sensory Suite For A Rehabilitation Robot, Stephanie A. Stiber Jul 2006

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

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 ...


Geophysical Investigations And Groundwater Modeling Of The Hydrologic Conditions At Masaya Caldera, Nicaragua, Richard Eric Macneil Jul 2006

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

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 ...


The Reaction To Economic Globalization In Latin America: A Case Study Of Argentina, Lisa A. Warner Jul 2006

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

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 ...


A Mechanized Horseback Riding Simulator As An Aid To Physical Therapy, Jennifer Lott Jul 2006

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

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 ...


Knowledge-Based Video Compression For Robots And Sensor Networks, Chris Williams Williams Jul 2006

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

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 ...


Study Of Upward-Facing Spray Cooling With Water At Atmospheric Pressure, Alberto D. Sato Jul 2006

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

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 Jul 2006

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

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 ...


Establishing A Functional Analysis Protocol For Examining Behavioral Deficits Using Social Withdrawal As An Exemplar, Melissa Penaranda Walters Jun 2006

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

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 ...


The Acquisition Of Functional Sign Language By Non-Hearing Impaired Infants, Kerri Haley-Garrett Jun 2006

The Acquisition Of Functional Sign Language By Non-Hearing Impaired Infants, Kerri Haley-Garrett

Graduate Theses and Dissertations

Research shows that young children, typically developing with no developmental delays, hearing impairments or visual impairments, can acquire sign language to communicate their wants or needs prior to their ability to communicate through spoken language. However, much of the research reviewed focused on whether it was normative for young children to use signs or symbolic gestures to represent objects, make requests, or to express other wants or needs. In addition, many of the studies reviewed lacked scientific rigor and were primarily anecdotal in that much of the data relied on parent reports of his/her child's production of signs ...


Effect Of Tricalcium Silicate Content On Expansion In Internal Sulfate Attack, Troy T. Whitfield Jun 2006

Effect Of Tricalcium Silicate Content On Expansion In Internal Sulfate Attack, Troy T. Whitfield

Graduate Theses and Dissertations

The purpose of this study was to determine the cementitious parameters and placement temperature that impact internal sulfate attack in concrete. Concrete structures make up a large percentage of the infrastructure and multifamily housing. Durability is very important. Cements can be formulated to reduce the impact of external environmental exposure such as high salinity from marine environments or high sulfate levels from soils or surface waters. Concrete is also subject to internal attack such as alkali aggregate reaction, (AAR), and delayed ettringite formation, (DEF). This study focused on some of the cement chemistry issues that determine susceptibility of cement to ...


Underwater Frp Repair Of Corrosion Damaged Prestressed Piles, Kwangsuk Suh Jun 2006

Underwater Frp Repair Of Corrosion Damaged Prestressed Piles, Kwangsuk Suh

Graduate Theses and Dissertations

The goal of the dissertation was to quantify the role of FRP in repairing corroded prestressed piles in a marine environment and to demonstrate the feasibility of using it for field repairs. Three laboratory studies and two field demonstration projects were undertaken to meet this goal.In the first study, corroded specimens were repaired under water and tests conducted to determine the extent of strength retained immediately after wrapping and after further accelerated corrosion. Results showed that the underwater wrap was effective in restoring and maintaining lost capacity in both situations.The second study attempted to determine the effectiveness of ...


8-Isoprostane Levels In Exhaled Breath Condensate Of Pregnant Women Compared To Non-Pregnant Women; Is There A Baseline Difference?, Rosemary Szollas Jun 2006

8-Isoprostane Levels In Exhaled Breath Condensate Of Pregnant Women Compared To Non-Pregnant Women; Is There A Baseline Difference?, Rosemary Szollas

Graduate Theses and Dissertations

This study investigated whether or not there was an overall difference in the pulmonary oxidative marker, 8-isoprostane (PGF2-a), found in exhaled breath condensate, during pregnancy versus the non-pregnant state. The utility of this information was important secondary to the effect of maternal asthma on pregnancy and outcome, as it has been demonstrated in past studies that overall pregnant females with asthma have been shown to have an increased risk of exacerbation requiring medical intervention.The primary goal of this study sought to determine if there is a difference in PGF2a levels in the exhaled breath condensate of pregnant versus non-pregnant ...


An Examination Of The Interaction Between Exemplary Teachers And Struggling Writers, Betty Ruth Sylvester Jun 2006

An Examination Of The Interaction Between Exemplary Teachers And Struggling Writers, Betty Ruth Sylvester

Graduate Theses and Dissertations

This study examined the interactions between teachers of writing and struggling writers. There were two main research questions: (1) What is the nature of the interaction between exemplary teachers of writing and struggling writers? (2) What arethe responses of struggling writers to exemplary teachers' scaffolding? To answer these questions, qualitative analysis was conducted on data. Two struggling writers were selected for the study based on their responses to the Writers Self-Perception Scale,writing samples, and teacher recommendation. Data collection included observation in two separate fourth grade classrooms during the writing block for 30 days. Data sources included audio-recording of writing ...


A Descriptive Study Of Students' Perspectives On Controversial Issues Embedded In A College Environmental Science Course, Chyrisse P. Tabone Jun 2006

A Descriptive Study Of Students' Perspectives On Controversial Issues Embedded In A College Environmental Science Course, Chyrisse P. Tabone

Graduate Theses and Dissertations

This qualitative study described non-science undergraduate majors' responses to controversial issues embedded in an introductory level environmental science course in a liberal arts college located in the southeastern United States. Participants enrolled in this 12-week summer course were both traditional college-age (late teens to early twenties) and non-traditional age student (thirties to fifties). Approximately 76 percent were female. Students demonstrated various lifestyles (e.g., gay, single-parent, living at home), socioeconomic statuses (e.g., middle-income, low income), employment (e.g., employed, unemployed, ex-military) and ethnicities. The structure of the environmental science course was consistent with the science education reform movement standards ...


Factors Influencing Special Educators' Perceptives Regarding The Reintegration Of Special Education Students, Brandi L. Tanner Jun 2006

Factors Influencing Special Educators' Perceptives Regarding The Reintegration Of Special Education Students, Brandi L. Tanner

Graduate Theses and Dissertations

The purpose of this investigation was to obtain information about special educators' perceptions of the reintegration of special education students into general education classrooms and factors affecting their reintegration decisions. Reintegration is the process of determining when it is appropriate to fade and eventually remove special education services for a student. Special educators often are in a good position to both initiate and facilitate this process. The current study surveyed special educators. Participants read vignettes depicting special education students with mild disabilities and answered a set of survey questions regarding their perceptions about reintegrating the students into the general education ...


The Effects Of In-Group Bias And Decision Aids On Auditors' Evidence Evaluation, Eileen Zalkin Taylor Jun 2006

The Effects Of In-Group Bias And Decision Aids On Auditors' Evidence Evaluation, Eileen Zalkin Taylor

Graduate Theses and Dissertations

This study examines the effect of in-group bias and decision aid use on auditor judgments, confidence, and decisions in an analytical procedures task. In-group bias, a product of Social Identity Theory, may impair auditor independence by influencing auditor judgments. Auditors rely on client representations to support their opinion of the financial statements; however, clients are sometimes former auditors of the external audit firm. This prior relationship could lead the auditor to exhibit unwarranted trust of client representations. In an online mixed design experiment using staff and senior auditors, I test whether auditor judgments, confidence in those judgments, and decisions to ...


The Relationship Between Sleep, Behavior, And Pre-Academic Skills In Pre-Kindergarteners, Rachel B. Witte Jun 2006

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

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 ...


The Sertoli Cell-Spermatid Junctional Complex: A Potential Avenue For Male Contraception, Katja Margrit Wolski Jun 2006

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

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 ...


Awakening Days At Dead River, Edward Curry Woodward Jun 2006

Awakening Days At Dead River, Edward Curry Woodward

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 Jun 2006

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

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 and ...


A Comparison Of The Perceived Performance Of Mentoring Functions Of National Board-Certified And Non-National Board-Certified Teachers With Their Protã©Gã©S, Amy Jo Smith Wilson Jun 2006

A Comparison Of The Perceived Performance Of Mentoring Functions Of National Board-Certified And Non-National Board-Certified Teachers With Their Protã©Gã©S, Amy Jo Smith Wilson

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 ...


Growth And Physical Properties Of Magnetite Thin Films, Chamila S. Siyambalapitiya Jun 2006

Growth And Physical Properties Of Magnetite Thin Films, Chamila S. Siyambalapitiya

Graduate Theses and Dissertations

This project focused on two aspects of magnetite thin films. The first was to find optimum parameters and conditions for deposition of stoichiometeric Magnetite films using pulsed laser deposition (PLD). The second aspect was the characterization of the magnetic and electrical properties in order to broaden the spectrum of understanding of PLD Magnetite films. These properties were also investigated in terms of the substrates on which the films were deposited. Discussed in this thesis are deposition parameters, structural characteristics, magnetic and electrical characteristics of the films in terms of different substrates and film thicknesses. The discussion consists of structural parameters ...


Geochemical Signatures In The Coral Montastraea: Modern And Mid-Holocene Perspectives, Jennifer Mae Smith Jun 2006

Geochemical Signatures In The Coral Montastraea: Modern And Mid-Holocene Perspectives, Jennifer Mae Smith

Graduate Theses and Dissertations

In the first phase of this project, four decades of monthly resolved geochemical variations from two massive heads of Montastraea were used to explore the reproducibility of the geochemical signal in these two corals from Looe Key, Florida. The coral d18O and d13C records of the two corals have statistically indistinguishable mean values, which is not the case for the coral Sr/Ca records implying that nonenvironmental factors are influencing coral Sr/Ca. Calibration equations relating coral geochemistry variations to environmental variations at Looe Key are different from previously published equations for Montastraea. These calibration differences are not related to ...


Multiple Voices And The Single Individual: Kierkegaard's Concept Of Irony As A Tool For Reading The Great Gatsby, The Sun Also Rises, Mrs. Dalloway, And Ulysses, Thomas P. Smith Jun 2006

Multiple Voices And The Single Individual: Kierkegaard's Concept Of Irony As A Tool For Reading The Great Gatsby, The Sun Also Rises, Mrs. Dalloway, And Ulysses, Thomas P. Smith

Graduate Theses and Dissertations

The central issue in the works of Danish philosopher and religious thinker Soren Kierkegaard (1813-1855) takes the form of a question: "What does it mean to become a Christian?" However, Kierkegaard's ideas exerted influence well beyond Christian circles and have been important to many notable philosophical and literary figures, some of whom chose not to concern themselves primarily with this question (Sartre, Camus, Heidegger, Buber), and some of whom did choose to concern themselves primarily with this question (Tillich, Bonhoeffer, Berdyaev, Marcel). Even though Kierkegaard died in relative obscurity, thanks to posthumous translation of his works into German and ...


A Novel Air Sampling And Analytical Method For Determination Of Airborne Bronopol, John Charles Smyth Jun 2006

A Novel Air Sampling And Analytical Method For Determination Of Airborne Bronopol, John Charles Smyth

Graduate Theses and Dissertations

Bronopol has been used as a preservative in drugs and cosmetics since 1964. Bronopol has low dermal irritancy at levels commonly used in cosmetics and pharmaceuticals but it is significantly irritating at higher concentrations. Laboratory testing of bronopol indicates a low potential for dermal sensitization; however, a number of case reports demonstrate human allergenic reactions. No reports were identified on the allergenic properties of bronopol for the inhalation route of exposure. In 1983 approximately 5,200 people in the United States were occupationally exposed to bronopol. Current novel uses of bronopol include mold remediation and the sanitizing of ventilation system ...


Assessment Of Occupational Heat Strain, Margaret Wan Jun 2006

Assessment Of Occupational Heat Strain, Margaret Wan

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 ...


Antibiotic-Conjugated Polyacrylate Nanoparticles: New Opportunities For Development Of Anti-Mrsa Agents, Yang Wang Jun 2006

Antibiotic-Conjugated Polyacrylate Nanoparticles: New Opportunities For Development Of Anti-Mrsa Agents, Yang Wang

Graduate Theses and Dissertations

N-Thiolated B-lactams represent a novel family of antibacterial agents, whose in vitro activity is confined largely to Staphylococcus species, including multidrug-resistant forms of S. aureus. N-Thiolated B-lactams have recently been shown to possess intriguing biological activities which are addressed in Chapter II. Current development of nanoparticles as a new drug delivery vehicle is described in Chapter III. Chapter IV and V described the current research in our laboratories focusing on the synthesis and characterization of emulsified polyacrylate/polyacrylamide nanoparticle antibacterials for drug delivery of water-insoluble antibiotics. These nanoparticles can be prepared in aqueous media directly from acrylate/acrylamide monomers through ...