Digital Commons Network^™

Latino Mothers’ Responsiveness And Bilingual Language Development In Young Children From 24 Months To 36 Months, Rica Ramirez

USF Tampa Graduate Theses and Dissertations

This longitudinal study examined the role maternal responsiveness had on shaping Spanish and English language development in bilingual two year-old children. Because children who are bilingual language learners are oftentimes coming from low socioeconomic families it is essential that we investigate the ways in which they develop language in order to better serve this population. Maternal responsiveness is one source in which we can examine early language development of young bilingual children. Eight Latino mother-child dyads were observed and assessed at three time points. Each observation was coded for maternal responsive behaviors. Regression and multilevel modeling was used in order …

A Landscape Of Thermal Inequity: Social Vulnerability To Urban Heat In U.S. Cities, Bruce Coffyn Mitchell

USF Tampa Graduate Theses and Dissertations

A combination of the urban heat island effect and a rising temperature baseline resulting from global climate change inequitably impacts socially vulnerable populations residing in urban areas. This dissertation examines distributional inequity of exposure to urban heat by socially disadvantaged groups and minorities in the context of climate justice. Using Cutter’s hazards-of-place model, variables indicative of social vulnerability and biophysical vulnerability are statistically tested for their associations. Biophysical vulnerability is conceptualized utilizing a urban heat risk index calculated from summer 2010 LANDSAT imagery to measure land surface temperature , structural density through the normalized difference built-up index, and vegetation abundance …

The Development And Validation Of The Physical Appearance Comparison Scale-3 (Pacs-3), Lauren M. Schaefer

USF Tampa Graduate Theses and Dissertations

Both theory and research implicate appearance comparison processes in the development of body image disturbance and disordered eating. Although several measures of appearance comparison exist, each has significant limitations. The Physical Appearance Comparison Scale-Revised (PACS-R) and its earlier versions are measures designed to assess the frequency of appearance comparisons among men and women. In the current study, the PACS-R was revised to (a) examine comparisons of weight/shape, muscularity, and overall physical appearance, (b) include items to assess comparisons with distal targets, (c) provide an assessment of upward versus downward comparisons, and (d) provide an assessment of the acute emotional impact …

Benchmarks Of Equality? School-Wide Positive Behavior Interventions And Supports And School Discipline Risk And Disparities For Black And Hispanic Students, Christopher M. Barclay

USF Tampa Graduate Theses and Dissertations

In U.S. schools, Black and Hispanic youth receive discipline in the form of office discipline referrals and out-of-school suspensions at a rate greater than their White peers. Contributing factors to this “discipline gap” may be found across a number of ecological variables. Therefore, multifaceted and systemic interventions such as school-wide positive behavior interventions and supports (SWPBIS) should be evaluated for their effectiveness in producing more equitable school discipline rates. In light of mixed evidence for the relationship of SWPBIS with discipline equity, the purpose of this study was to examine the merits of five critical elements of SWPBIS for reducing …

Diversifying Homogenous Au(I)-Catalysis Through New Reaction Discovery, Stephen Motika

USF Tampa Graduate Theses and Dissertations

Homogenous Au(I)-catalysis has become a valuable synthetic tool to activate a host of unsaturated carbon functional groups towards nucleophilic addition. Over the course of the past two decades, many have embarked on new journeys within this field. Notably, the advancements in this field hinge on the development of new ligand systems that impart novel reactivity at the metal. Our group has focused on this area, as we have successfully demonstrated the utility of 1,2,3-triazoles as ligands for gold and a host of other transition metals and Lewis acids. With respect to gold catalysis, these ligands enhance the stability of the …

Bayesian Artificial Neural Networks In Health And Cybersecurity, Hansapani Sarasepa Rodrigo

USF Tampa Graduate Theses and Dissertations

Being in the era of Big data, the applicability and importance of data-driven models like artificial neural network (ANN) in the modern statistics have increased substantially. In this dissertation, our main goal is to contribute to the development and the expansion of these ANN models by incorporating Bayesian learning techniques. We have demonstrated the applicability of these Bayesian ANN models in interdisciplinary research including health and cybersecurity.

Breast cancer is one of the leading causes of deaths among females. Early and accurate diagnosis is a critical component which decides the survival of the patients. Including the well known ``Gail Model", …

The Effect Of Androstenone As A Mating Prime On Drinking And Approach Behavior, Robin Tan

USF Tampa Graduate Theses and Dissertations

Recent research has shown that sexual activity may be influenced by variables suggested by evolutionary theory, such as pheromonal cues. A recent study in our laboratory indicated that female pheromones influence men’s drinking and approach behavior based on hidden pathways of behavioral influence caused by chemosensory signals. The current study sought to examine whether a link exists between male pheromones and women’s drinking and approach behavior, through the use of a possible male sex pheromone called androstenone, and sought to examine this link within the context of a women’s ovulation cycle. One hundred and three female participants were primed with …

Social Story Tm And In-Situ Training At Home: Effects On Household Chemical Safety Skills In Young Children, Courtney Ek

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to expand the literature on Social Story^TM and in-situ training by targeting household chemical safety skills in typically developing young children. The study involved three children, ages 2 and 3 years old who had difficulty performing household chemical safety skills at home. A multiple-baseline across participants design with an ABC sequence was used to examine the effects of the Social Story^TM and in-situ training interventions on the children’s household chemical safety skills. The investigation focused on examining whether the Social Story^TM alone would be effective in teaching targeted safety skills to …

Adverse Childhood Experiences And Their Role As Mitigators For Youthful And Non-Youthful Offenders In Capital Sentencing Cases, Jessica R. Trapassi

USF Tampa Graduate Theses and Dissertations

Adverse childhood experiences (ACEs) and their role as mitigators in capital sentencing is an important, yet relatively unexplored, topic in criminological literature. Using data from the North Carolina Capital Sentencing Project, this study explores the role of ACEs as mitigating factors for youthful and non-youthful capital offenders: whether youthful offenders are less likely to be sentenced to death, whether or not ACEs are effective as mitigating factors, and whether ACE mitigators are more effective for youthful or non-youthful offenders. Results show that youthful capital offenders are less likely to be sentenced to death than adult capital offenders, and while ACE …

Treatment Of Food Selectivity: An Evaluation Of Video Modeling Of Contingencies, Erin O'Connor

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to evaluate the effectiveness of video modeling of contingencies alone and/or combined with direct exposure to the contingencies in the treatment of food selectivity. Treatment procedures included sequentially introducing videos in which models consumed nonpreferred food, were exposed to differential reinforcement, or exposed to escape extinction and differential reinforcement. In addition, participants were exposed to differential reinforcement. Results indicated video modeling of differential reinforcement plus differential reinforcement may be effective at increasing consumption of some nonpreferred foods, but the results were not replicated across all foods. For one participant, consumption of one food increased …

Female Incarceration And Prison Social Order: An Examination Of Gender Differences In Prison Misconduct And In-Prison Punishments, Elisa L. Toman

USF Tampa Graduate Theses and Dissertations

The dramatic increase in the U.S. prison population has renewed scholarly interest in the prison experience. Researchers have built upon and extended classic theories of inmate behavior to better understand the mechanisms that lead to inmate violence and misbehavior. Yet, scholars still consider what happens to inmates inside of prison a “black box,” due to limited systematic assessments of the prison experience. This body of scholarship is also limited by its narrow focus on males, as theories of inmate behavior have been developed around male experiences and, in turn, ignore the possibility that gender may influence prison life. Feminist theory …

Age Of Alcohol Initiation And Reward Processes In A Current Alcohol Drinking Sample, Claire M. Gorey

USF Tampa Graduate Theses and Dissertations

Earlier ages of alcohol initiation have been associated with an increased vulnerability for Alcohol Use Disorder and general risk taking behaviors beyond genetic influence. Reward processes, including reward anticipation (pleasure before receiving alcohol/general reward), reward learning (how quickly one pairs a stimulus with alcohol/general reward), and reward consummation (pleasure when receiving alcohol/general reward), have been implicated as potential mechanisms accounting for this vulnerability. However, no careful bio-behavioral research has been conducted on the effect of age of alcohol initiation on general and alcohol-related reward processes. Using Event Related Potentials (ERPs), the current study addressed this gap in a sample of …

Laser Machining And Near Field Microwave Microscopy Of Silver Inks For 3d Printable Rf Devices, Anthony J. Ross Iii

USF Tampa Graduate Theses and Dissertations

3D printable materials for RF devices need improvement in order to satisfy the demand for higher frequency and lower loss performance. Characterization of materials that have shown improvements of conductor conductivity have been performed. By using a laser machining technique the loss of a 3D printed 2.45 GHz microstrip Square Open Loop Resonator (SOLR) bandpass filter has been shown to improve by 2.1dB, along with an increase in bandwidth from 10% to 12.7% when compared to a SOLR filter that has not been laser machined. Both laser machined and microwaved silver inks have been mapped for conductivity using a Near …

Evaluation Of The Class Pass Intervention (Cpi): An Application To Improve Classroom Behavior In Children With Disabilities, Taylor Narozanick

USF Tampa Graduate Theses and Dissertations

The Class Pass Intervention (CPI) is designed to be implemented within school-wide PBIS to decrease disruptive behavior and teach an appropriate replacement behavior for students needing Tier 2 intervention. The purpose of the present study was to extend the literature on the CPI by further evaluating the impact of the first component of the CPI on disruptive behavior and academic engagement of elementary school children with disabilities engaging in mild to moderate disruptive behavior. Three students and their respective teachers participated in the study. A multiple baseline across participants design with an embedded reversal was used to demonstrate the impact …

A Comparison Of Teacher And Student Choices On Reinforcement Criteria In Using The Caught Being Good Game (Cbgg) To Improve Classroom Behavior, Michael Marotta

USF Tampa Graduate Theses and Dissertations

The Caught Being Good Game (CBGG), a variation of Good Behavior Game, is an interdependent group contingency, which focuses on giving students points for engaging in appropriate, rule-following behavior. The present study aimed to expand the literature on CBGG by targeting students in general education classrooms and comparing the impact of student-chosen versus teacher-chosen contingency criteria on disruptive behavior and academic engagement. Four students who were at-risk for developing emotional disorders in two general elementary classrooms were targeted in the study. A multiple-baseline across participants design with an embedded alternating treatments design was used to evaluate the outcomes of the …

Product Shadows And Ad Evaluations, Nazuk Sharma

USF Tampa Graduate Theses and Dissertations

Prior research shows that stylistic ad manipulations (i.e., the style or manner in which product visuals are presented in an ad) impact consumer perceptions (Yang, Zhang and Peracchio 2010). This dissertation explores the impact of presence (versus absence) of a product’s shadow in the ad frame, as a visual stylistic manipulation influencing consumer ad perceptions. While many stylistic manipulations have been explored in the past, product shadows in how they impact ad perceptions have not been explored.

Drawing on a holistic understanding on object shadows from the visual art, cognition and psychophysics literature streams, this dissertation investigates how product shadows …

Structural Racism: Racists Without Racism In Liberal Institutions Within Colorblind States, Alexis Nicole Mootoo

USF Tampa Graduate Theses and Dissertations

Afro-Descendants suffer sustained discrimination and invisibility that is proliferated with policies that were once blatantly racist, but are now furtive. This study argues that structural racism is alive and well in liberal institutions such as publicly funded colleges and universities. Thus, structural racism is subtly replicated and reproduced within these institutions and by institutional agents who are Racist without Racism. This study builds on theories from Pierre Bourdieu, Frantz Fanon, Glen Loury and Eduardo Bonilla-Silva. The juxtaposition of their theoretical arguments provides a deeper insight into how structural racism becomes a de facto reflexive phenomenon in liberal and progressive institutions …

Selection Of Memory Book Content: Agreement In Content As A Function Of Informant Relationship To Memory Book Recipient, Rebecca J. Allen

USF Tampa Graduate Theses and Dissertations

This study was designed to determine to what extent provision of personally relevant information and sensory cues would agree between Recipient and Informant for selection of memory book content. Six dyads married to each other an average of 29.17 years (SD = 10.03), between the ages of 43 and 70 years (Mean = 57; SD = 8.39), and cognitively competent (i.e., no diagnosis of cognitive impairment) participated. Participants completed questionnaires independently and provided personally relevant information/memories, aversions towards select memories/topics, and sensory cues on behalf of themselves (as “Recipient) and their spouse (as “Informant”). For provision of personally relevant information/memories, …

Tensions Between Democracy And Expertise In The Florida Keys, Elizabeth A. Loyer

USF Tampa Graduate Theses and Dissertations

The proposed release of genetically modified mosquitoes (GMM) in the Florida Keys to combat the spread of diseases such as Zika prompted heated local debate, turning a seemingly routine mosquito control policy into a public scientific controversy. Arguments about the GMM derive from inventional commonplaces where the historical conflict between democratic systems of civic deliberation and the epistemic authority of expertise is instantiated. This project analyzes the topoi that Keys participants gather around to generate their argumentative positions as published in public, local print and digital news articles, blog posts, and letters to the editor between 2011 and 2016. Investigating …

Behind The Curtain: Cultural Cultivation, Immigrant Outsiderness, And Normalized Racism Against Indian Families, Pangri G. Mehta

USF Tampa Graduate Theses and Dissertations

This qualitative dissertation uses an Indian dance studio based in the suburbs of a mid-sized Florida city as an entry point to examine how racism impacts the local upwardly mobile Asian Indian community. Utilizing two and a half years of ethnographic data collected at the studio as a Bollywood instructor, 24 in-depth interviews with Indian immigrant parents and their children, 12 self-portraits drawn by children during their interviews, and home visits with 13 families, this project examines the strategies of accommodation and resistance that Indian families use to construct a sense of home and belonging. Applying socialization, visual research methods, …

Characterization Of Surface Charges And Compensating Charges For Gene Delivery To Tissue, Ravi Shanmugha Preethi Vangapattu

USF Tampa Graduate Theses and Dissertations

Ever since the discovery of DNA, there has been many pathologies identified effecting mankind. With the development in technology, there are many methods to alleviate these pathologies. One such is gene therapy or gene delivery. It is a process of introducing some foreign material into the body to correct the effected cells. In principle, it is a modern method to cure cells or a method to transfer nucleic acid into a cell to treat specific cells in the body. The process of delivering a genetic material is carried out using vectors, namely, viral vectors and non-viral vectors. In viral vectors, …

Prevalence Of Typical Images In High School Geometry Textbooks, Megan N. Cannon

USF Tampa Graduate Theses and Dissertations

Visualization in mathematics can be discussed in many ways; it is a broad term that references physical visualization objects as well as the process in which we picture images and manipulate them in our minds. Research suggests that visualization can be a powerful tool in mathematics for intuitive understanding, providing and/or supporting proof and reasoning, and assisting in comprehension. The literature also reveals some difficulties related to the use of visualization, particularly how illustrations can mislead students if they are not comfortable seeing concepts represented in varied ways. However, despite the extensive research on the benefits and challenges of visualization …

Perceptual Differences In Natural Speech And Personalized Synthetic Speech, Katherine Overton

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to determine what perceptual differences existed between a natural recorded human voice and a synthetic voice that was created to sound like the same voice. This process was meant to mimic the differences between a voice that would be used for Message Banking and a voice that would be created by the ModelTalker system. Forty speech pathology graduate students (mean age = 23 years) rated voices on clarity, naturalness, pleasantness, and overall similarity. Analysis of data showed that the natural human voice was consistently rated as more natural, clear, and pleasant. In addition, participants …

Cybersecurity: Probabilistic Behavior Of Vulnerability And Life Cycle, Sasith Maduranga Rajasooriya

USF Tampa Graduate Theses and Dissertations

Analysis on Vulnerabilities and Vulnerability Life Cycle is at the core of Cybersecurity related studies. Vulnerability Life Cycle discussed by S. Frei and studies by several other scholars have noted the importance of this approach. Application of Statistical Methodologies in Cybersecurity related studies call for a greater deal of new information. Using currently available data from National Vulnerability Database this study develops and presents a set of useful Statistical tools to be applied in Cybersecurity related decision making processes.

In the present study, the concept of Vulnerability Space is defined as a probability space. Relevant theoretical analyses are conducted and …

“You Know Who I Am, Don’T You? I’M The One They’Re Writing About In The Newspapers And On Tv”, Casey Killen Crane

USF Tampa Graduate Theses and Dissertations

News media play a key role in U.S. society, helping to inform members of the public as gatherers and reporters of information, as well as by serving as government watchdogs. In the ongoing search for and reporting of information, media professionals must be aware of how they report on crime by being cognizant of how they represent killers, victims, and their families, and by being aware of how they represent any gratifications those groups may receive from the media coverage. This study considers the interactions between serial killer Dennis Rader, investigators and media organizations, and how some of these groups …

Time Series Online Empirical Bayesian Kernel Density Segmentation: Applications In Real Time Activity Recognition Using Smartphone Accelerometer, Shuang Na

USF Tampa Graduate Theses and Dissertations

Time series analysis has been explored by the researchers in many areas such, as statistical research, engineering applications, medical analysis, and finance study. To represent the data more efficiently, the mining process is supported by time series segmentation. Time series segmentation algorithm looks for the change points between two different patterns and develops a suitable model, depending on the data observed in such segment. Based on the issue of limited computing and storage capability, it is necessary to consider an adaptive and incremental online segmentation method. In this study, we propose an Online Empirical Bayesian Kernel Segmentation (OBKS), which combines …

Assessment And Modeling Of Three Decentralized Resource Recovery Systems In The Cayes Of The Belize Barrier Reef, Mark D. Kalivoda

USF Tampa Graduate Theses and Dissertations

Three wastewater treatment systems (WWTS) situated on Cayes in the Belize Barrier Reef System were assessed in terms of the unique public health and environmental circumstances of being a tourist destination surrounded by fragile coral reef. Laughing Bird Caye, Silk Caye, and Little Water Caye are three small cayes that are the staging points for local diving, fishing, and other recreational tourism. All three systems are based upon pour-flush toilets, semi-anaerobic biodigesters and drainage fields. Limitations in cost, available resources, useable area, high infiltration rates of the sand, and salinity of the water have played a major factor in the …

Perceptual Learning Styles Modalities Utilizing The Multimodal Paired Associates Learning Test: An Analysis Of Latinos Born In Central And South America, Matias Ramirez

USF Tampa Graduate Theses and Dissertations

Businesses and Human Resources professionals face the ongoing challenge of continuously upskilling and developing employees. Changes to processes or procedures, changes in technology, changes in job functions, and updates or changes to compliance laws or regulations are all reasons that employees must attend and complete employer-developed training. This study utilized the updated Multimodal Paired Associates Learning Test, version four (MMPALT-IV) instrument to determine perceptual learning styles and to determine if there exists a measureable difference in Latinos perceptual learning styles.

The purpose of this study was to measure the perceptual learning styles of Latino adults from Central and South America …

Psychopathic Traits And Substance Use In The Context Of Erotic Services And Sex Exchange Among College Students, Bethany Edwards

USF Tampa Graduate Theses and Dissertations

With increasing education expenses and characterization of our culture as “sexualized”, scholars have begun to explore student engagement in erotic services, but most research has been done outside the United States. This study tested personality correlates, prevalence and type of erotic service involvement in men and women college students in the United States. Specifically, the present study examined gender differences and whether substance use and psychopathic traits exhibit unique and/or interactive associations with both provision and consumption of erotic services among students. A total of 820 undergraduate students (54.3% women) took part in a study on personality and sexual behavior, …

Ability Of Physiological Strain Index To Discriminate Between Sustainable And Unsustainable Heat Stress, Dwayne Wilson

USF Tampa Graduate Theses and Dissertations

Introduction: Assessment of heat strain is an alternative approach to assessing heat stress exposures. Two common measures of heat strain are body core temperature (T_C) and heart rate (HR). In this study TC was assessed by rectal temperature (T_re). Physiological Strain Index (PSI) was developed to combine both T_re and HR into one metric. Data collected from progressive heat stress trials were used to (1) demonstrate that PSI can distinguish between Sustainable and Unsustainable heat stress; (2) suggest values for PSI that demonstrate a sustainable level of heat stress; and (3) determine if clothing or …