Digital Commons Network^™

Design And Simulation Of A Miniature Cylindrical Mirror Auger Electron Energy Analyzer With Secondary Electron Noise Suppression, Jay A. Bieber

USF Tampa Graduate Theses and Dissertations

In the nanoscale metrology industry, there is a need for low-cost instruments, which have the ability to probe the structrure and elemental composition of thin films. This dissertation, describes the research performed to design and simulate a miniature Cylindrical Mirror Analyzer, (CMA), and Auger Electron Spectrometer, (AES). The CMA includes an integrated coaxial thermionic electron source. Electron optics simulations were performed using the Finite Element Method, (FEM), software COMSOL. To address the large Secondary Electron, (SE), noise, inherent in AES spectra, this research also included experiments to create structures in materials, which were intended to suppress SE backgound noise in …

Sleep And Alzheimer’S Disease: A Critical Examination Of The Risk That Sleep Problems Or Disorders Particularly Obstructive Sleep Apnea Pose Towards Developing Alzheimer’S Disease, Omonigho A. Michael Bubu

USF Tampa Graduate Theses and Dissertations

This dissertation is a critical examination of the relationship between sleep problems and/or disorders, particularly Obstructive Sleep Apnea (OSA) and Alzheimer Disease (AD). First, I conducted an exhaustive systematic review of existing literature, and identified gaps in research that led to specific research aims. For the first aim, I conducted the first ever-published meta-analysis examining sleep, cognitive decline and AD, providing an aggregate effect of sleep on AD. Second, focusing on OSA, I conducted a study examining OSA’s effect on longitudinal changes on AD biomarkers in cognitive normal, MCI and AD subjects, using data from the Alzheimer Disease Neuroimaging Initiative …

The Spirit Of Friendship: Girlfriends In Contemporary African American Literature, Tangela La'chelle Serls

USF Tampa Graduate Theses and Dissertations

The Spirit of Friendship: Girlfriends in Contemporary African American Literature examines spiritual subjectivities that inspire girlfriends in three contemporary novels to journey towards actualization. It examines the girlfriend bond as a space where the Divine Spirit can flourish and assist girlfriends as they seek to become actualized. This project raises epistemological questions as it suggests that within the girlfriend dynamic, knowledge that is traditionally subjugated is formed and refined. Finally, girlfriend epistemology is considered in light of Black Girl Magic, a contemporary social and cultural movement among Black women.

Music Ensemble Participation: Personality Traits And Music Experience, Tracy A. Torrance

USF Tampa Graduate Theses and Dissertations

The personality of musicians, artists, and other creative persons is of considerable interest to researchers and educators who seek to identify traits associated with musical behaviors. Personality traits can influence music behaviors such as instrument choice, ensemble choice, practice habits, and musical experience, which may contribute to continued music participation. The purpose of this study is to explore the relationships between personality type, music ensemble section, instrument choice (vocal or instrumental), and musical experience in college students and individuals who choose to continue participation after college. Few studies have concentrated on personality characteristics of ensemble members at the collegiate level …

Faculty Perceptions Of Core Components Perceived To Be Effective In Their Prominent Graduate Entrepreneurship Education Programs, James Grant Taylor

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to identify Core components perceived by faculty to be effective in their prominent graduate entrepreneurship education programs. The study sought to identify the best practices in graduate entrepreneurship education programs from the perceptions of faculty in the field.

Research questions guiding the study were: (1) What Core components related to the following Broad question areas are perceived by faculty to be effective in their prominent graduate entrepreneurship education programs: Activities and initiatives; Adult education principles and practices; Alumni and mentoring; Course offerings; Curriculum and degrees; Faculty data; Institutional characteristics; Instructional methods; Student companies; and …

Contributions Of Appetitive And Aversive Motivational Systems To Decision-Making, Heather E. Soder

USF Tampa Graduate Theses and Dissertations

Optimal decision-making entails outcome evaluation, comparing received costs and benefits with predicted costs and benefits. The anterior cingulate cortex (ACC), a brain area with major connections to the appetitive and aversive motivation systems, may provide the neural substrate of this evaluation process. One way to measure the relative contribution of these systems on decision-making is to measure individual differences in risk-taking behaviors. For individuals who make risky choices, this evaluation step may be biased: some show a preference for immediate, short-term rewards (increased appetitive system), while devaluing the long-term consequences of their choices (decreased aversive system). However, most studies supporting …

Community College Second Language Students’ Perspectives Of Online Learning: A Phenomenological Case Study, Li-Lee Tunceren

USF Tampa Graduate Theses and Dissertations

In this phenomenological case study, I elicited the perspectives of first-year community college second language (L2) students enrolled in an online general education course, Studies in Applied Ethics. Four L2 participants narrated their lived experiences and impressions of distance learning via Skype interviews at early, mid, and end-of-semester junctures. The Distance Education instructional model Community of Inquiry (COI) served as the theoretical framework for the inquiry. The multilingual participants suggested the COI components Teaching Presence (design and facilitation of the course) and Learning Presence (self-regulated learning behaviors) led to Cognitive Presence (the understanding of and ability to demonstrate content …

Second-Generation Bruja: Transforming Ancestral Shadows Into Spiritual Activism, Lorraine E. Monteagut

USF Tampa Graduate Theses and Dissertations

The aim of this dissertation is to develop and illustrate a spiritually centered narrative method for transforming disorder into agency and action. I use my own position as a second-generation Hispanic female immigrant to show how training in a spiritual practice that mirrors my ancestral traditions helped me productively move through a sense of displacement, illness, and lack of purpose. My research includes travel to Havana, Cuba, and immersion in a five-week shamanic counseling training program in Tampa, Florida, during which I learned how to narrate my experiences as I engaged in shamanic journeying. As I reflect on these …

The Time To Love: Ideologies Of "Good" Parenting At A Family Service Organization In The Southeastern United States, Anna Davidson Abella

USF Tampa Graduate Theses and Dissertations

The purpose of this research is to understand definitions of what it means to be a “good” parent as described by parents and child development specialists at a family service organization in the Southeastern United States. Previous research on social reproduction and concerted cultivation have opened up pathways to understanding how social and economic inequality manifest in family life and the social structures of which they are a part. This ethnographic study is an effort to contribute to an anthropology of parenting by unveiling the ways that definitions of “good” parenting in middle-class and wealthy communities reflect time-intensive, attachment-based ideologies …

Neural And Behavioral Mechanisms Of Clear Speech, Jenna Silver Luque

USF Tampa Graduate Theses and Dissertations

Clear speech is a speaking style that has been shown to improve intelligibility in adverse listening conditions, for various listener and talker populations. Clear-speech phonetic enhancements include a slowed speech rate, expanded vowel space, and expanded pitch range. Although clear-speech phonetic enhancements have been demonstrated across a variety of talkers, only a subset of these changes may be required for listeners to benefit perceptually from clear speech. Furthermore, while current literature has provided some understanding of the phonetic enhancements that are typical of clear speech and the improvements in intelligibility resulting from its use, less is understood regarding how listeners …

The Time To Love: Ideologies Of "Good" Parenting At A Family Service Organization In The Southeastern United States, Anna Davidson Abella

USF Tampa Graduate Theses and Dissertations

The purpose of this research is to understand definitions of what it means to be a “good” parent as described by parents and child development specialists at a family service organization in the Southeastern United States. Previous research on social reproduction and concerted cultivation have opened up pathways to understanding how social and economic inequality manifest in family life and the social structures of which they are a part. This ethnographic study is an effort to contribute to an anthropology of parenting by unveiling the ways that definitions of “good” parenting in middle-class and wealthy communities reflect time-intensive, attachment-based ideologies …

Collaboration With Families: Perceptions Of Special Education Preservice Teachers And Teacher Preparation, Mehmet Emin Ozturk

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to explore the integration of family involvement in the courses and field experiences in an undergraduate special education program. This study also explored preservice teachers’ perceptions about what they learned in their program and the perceptions, and understandings of pre-service teachers regarding collaboration with families based on their past experiences with their families. This study used qualitative research methods to answer questions about perceptions of pre-service teachers’ perceptions of collaborating with families and the extent to which their perceptions are influenced by their own family backgrounds as well as their perceptions about what they …

Aphra Behn On The Contemporary Stage: Behn's Feminist Legacy And Woman-Directed Revivals Of The Rover, Nicole Elizabeth Stodard

USF Tampa Graduate Theses and Dissertations

This study theorizes the origins and history of the professional female playwright and director from the Restoration period to the present day through the stage history of Behn's most popular play, The Rover. Part one is comprised of two chapters: the first in this section argues the importance of appreciating Behn's proto-directorial function in the Restoration theatre and her significance to the history of feminism and women in professional theatre; the second chapter in this section examines the implications of casting practices and venue changes to eighteenth-century revivals of Behn's canon with a particular eye towards what a contemporary director …

The Role Of Sgs1 And Exo1 In The Maintenance Of Genome Stability., Lillian Campos-Doerfler

USF Tampa Graduate Theses and Dissertations

Genome instability is a hallmark of human cancers. Patients with Bloom’s syndrome, a rare chromosome breakage syndrome caused by inactivation of the RecQ helicase BLM, result in phenotypes associated with accelerated aging and develop cancer at a very young age. Patients with Bloom’s syndrome exhibit hyper-recombination, but the role of BLM and increased genomic instability is not fully characterized. Sgs1, the only member of the RecQ family of DNA helicases in Saccharomyces cerevisiae, is known to act both in early and late stages of homology-dependent repair of DNA damage. Exo1, a 5′–3′ exonuclease, first discovered to play a role …

Changing Changelessness: On The Genesis And Development Of The Doctrine Of Divine Immutability In The Ancient And Hellenic Period, Milton Wilcox

USF Tampa Graduate Theses and Dissertations

This project will track and explain the development of the Doctrine of Divine Immutability from early mythological and scriptural source material that seems to indicate that divine entities are changeable into metaphysical systems that demand a perfectly consistent deity. The Doctrine of Divine Immutability is a philosophical and theological postulate that has long been a staple of systematic metaphysics and theology, but its function in robust and fully formed systems is different than its function when it is first generated in Ancient Greece and Judah. Methodologically mostly primary sources are studied and compared with interpretive help from relevant secondary sources. …

The Common Core State Standards And The Elementary Social Studies Curriculum: A Case Study Of Teacher Perceptions In Florida, Kacie M. Nadeau

USF Tampa Graduate Theses and Dissertations

The most recent phase of curriculum reform in the era of accountability is the Common Core State Standards (CCSS) which have essentially reshaped the landscape of public education. Its objective of preparing K-12 students for college and career upon high school graduation have prioritized English language arts, mathematics, and science over social studies, which is not part of widespread high-stakes testing for elementary students. This qualitative case study investigated eleven intermediate elementary teachers’ perceptions of alignment between CCSS and the elementary social studies curriculum. Data gathering analysis included two semi-structured interviews and an archival analysis of the mandated curriculum. The …

The Relationship Between Total Neuropathy Score-Reduced, Neuropathy Symptoms And Function., Ashraf Abulhaija

USF Tampa Graduate Theses and Dissertations

Chemotherapy Induced Peripheral Neuropathy (CIPN) is a common problem among cancer patients who receive a wide range of chemotherapy. This problem causes a decline in quality of life and increased disabilities. CIPN assessment instruments are either subjective, objective, or a combination of both. So far, there is no agreement on the best way for assessment. The goal of this study was to explore the relationships among subjective and objective CIPN assessment instruments. Specifically, this study aimed to 1) evaluate the relationship between the Total Neuropathy Score-reduced (mainly objective) and patients’ function, as measured by the interference scale of the Chemotherapy-Induced …

Hidden: A Case Study On Human Trafficking In Costa Rica, Timothy Adam Golob

USF Tampa Graduate Theses and Dissertations

This is a case study on human trafficking that was conducted on the small Central American country of Costa Rica via a mixed-methods approach which included document review, surveys, and interviews. It was selected due to Costa Rica’s history of fluctuation between Tier 2 and Tier 2 Watch List status on the Trafficking in Persons Report, issued by the U.S. Department of State, over the last ten years. This ranking average indicates that it is one of the worst performing Central American states in efforts to combat trafficking in persons. This finding breaks with Costa Rica’s traditional placement as one …

An Exploration Of First-Year Students’ Engagement In A Postsecondary Common Reading Program, Kali L. Morgan

USF Tampa Graduate Theses and Dissertations

This study used the narrative engagement framework from the communication discipline to explore first-year college students’ engagement in common reading program events and activities, engagement with the text’s narrative, and students’ affirmation of attitudes espoused in the text’s narrative. A total of 325 first-year students enrolled at Texas State University responded to a web-based survey of about their experiences with the 2016-2017 Common Reading Program book, What It Is Like to Go To War (Marlantes, 2011). The book, a memoir of Marlantes’ experiences as a Marine Lieutenant during the Vietnam War, features scholarly reflections on the nature of war and …

Adverse Childhood Experiences And Its Association With Cognitive Impairment In Non- Patient Older Population, Mohini D. Dutt

USF Tampa Graduate Theses and Dissertations

This study explores cognitive impairment and its correlation to early- life adverse experiences in non-patient population between the ages of 50 to 65. This developmental approach and observational study design explores cognition in pre-clinical Alzheimer’s disease (AD). Using a standardized neuropsychological instrument, the Montreal Cognitive Assessment (MoCA) and clinically administered questionnaire, the ACE (Adverse Childhood Experiences), I hypothesized that participants with high ACE scores will inversely have low MoCA scores.

My goal was to use a multiple linear regression model with 3 covariates and 1 predictor of interest (ACEs). At 80% power, a sample size of 40 was calculated as …

Improving Reading Comprehension Of Children With Asd: Implication Of Anaphoric Reference Support With Computer Programming, Seda Karayazi Ozsayin

USF Tampa Graduate Theses and Dissertations

This study examined the effects of anaphoric pronouns presented via computer screen on the reading comprehension of four children with Autism Spectrum Disorder (ASD). Stories from the education.com website were used to collect data. The students’ responses to reading comprehension questions during baseline, treatment, and follow-up sessions were analyzed. The perceptions of students regarding anaphoric pronouns were also analyzed. Initially, reading levels, fluency and comprehension rate, of the students with ASD were identified via the Gray Oral Reading Test, Fifth edition (GORT-5), Test of Narrative Language (TNL), and Test of Narrative Language, Second edition (TNL-2). A randomized multiple baseline (MBL) …

Evaluating Satellite And Supercomputing Technologies For Improved Coastal Ecosystem Assessments, Matthew James Mccarthy

USF Tampa Graduate Theses and Dissertations

Water quality and wetlands represent two vital elements of a healthy coastal ecosystem. Both experienced substantial declines in the U.S. during the 20^th century. Overall coastal wetland cover decreased over 50% in the 20^th century due to coastal development and water pollution. Management and legislative efforts have successfully addressed some of the problems and threats, but recent research indicates that the diffuse impacts of climate change and non-point source pollution may be the primary drivers of current and future water-quality and wetland stress. In order to respond to these pervasive threats, traditional management approaches need to adopt modern …

Lexical Stress Features Affecting The Recognition Of English Loanwords In Korean By Native English Hearers, Yunhyun Lee

USF Tampa Graduate Theses and Dissertations

Unlike some Asian languages (e.g., Korean), English has lexical stress manifested by four acoustic features: duration, intensity, F0 (pitch), and vowel quality. Lexical stress has been known to have significant influences on native English speakers’ recognition of spoken words. According to Cutler (2015), lexical stress has both suprasegmental and segmental features: Suprasegmental features include duration, intensity, and F0 while vowel quality is considered a segmental feature. However, it is still unclear which lexical features are more responsible for spoken word recognition. This study examined which features, suprasegmental features or vowel quality of English, are a more significant influencer in spoken …

Impact Of Self-Monitoring On Independent Vocational Task Completion Of Adults With Disabilities In A Vocational Training Setting, Chelsea Palumbo

USF Tampa Graduate Theses and Dissertations

Employment is an important goal for many individuals with disabilities. Research indicates that behavioral techniques are effective in increasing task completion of individuals with disabilities in vocational training settings. Yet, limited research has examined the use of self-monitoring for increasing task completion of adults with disabilities receiving vocational training for future employment. Furthermore, few studies have focused on promoting the maintenance of improved vocational task completion among this population. Therefore, the primary purpose of this study was to extend the literature by examining the impact of self-monitoring on independent correct vocational task completion of four adults with disabilities within a …

Household Food Waste Prevention In Malaysia: An Issue Processes Model Perspective, Syahirah Abd Razak

USF Tampa Graduate Theses and Dissertations

Food waste has been a worldwide concern for several decades but this problem is relatively new in the Malaysian context due to the increasing amount of food waste in recent years. Thus, the goal of the study is to provide the basic information of knowledge and involvement level, and their interaction in food waste prevention among households in Malaysia. This study seek to further mass communication research in the area of food waste. The Hallahan’s Issues Processes Model was used within this study in order to determine the relationship between knowledge, involvement, and food waste prevention behavior. The convenience sampling …

Capturing Resilience In Context: Development And Validation Of A Situational Judgment Test Of Resilience, Yuejia Teng

USF Tampa Graduate Theses and Dissertations

The current study developed a 40-item situational judgment test (SJT) to measure resilience in context. Undergraduate samples were used in the study and situational stems of the SJT consisted of both daily stressors and major life crises; each response alternative was designed to reflect one of five resilience-related factors. A crowd-sourcing method was utilized to create scoring keys for the SJT. The Resilience SJT demonstrated good psychometric properties, and showed evidence of construct and criterion-related validity. The SJT scores moderately correlated with scores from two resilience Likert scales, a hardiness scale as well as a negative affect scale. Compared to …

Water, Sanitation, And Citizenship: Perceptions Of Water Scarcity, Reuse, And Sustainability In Valparaiso De Goias, Brazil, Paola Andrea Gonzalez

USF Tampa Graduate Theses and Dissertations

Access to reliable water and sanitation are two important goals to improve livelihoods around the world. Providing access to improved and safe water resources that are equitable and appropriate to local needs is important to improve sustainability long-term. In addition, framing access to water and sanitation as basic human rights is often used as a rationale in developing new water, sanitation, and hygiene interventions in developing countries around the world. But not all countries consider access to safe water and sanitation as a human right. In the thesis, the politics of improving and investment in water access and sanitation provision …

Traversing Privacy Issues On Social Networking Sites Among Kuwaiti Females, Shahad Shihab

USF Tampa Graduate Theses and Dissertations

This qualitative descriptive study explores privacy issues on social networking sites among young Kuwaiti females and their behavior when protecting their information. In this study, two of the most prominent social networking sites in Kuwait were selected to investigate Kuwaiti females’ privacy concerns. These platforms are Instagram and Twitter. The research was guided by two questions: What information do Kuwaiti females disclose on Instagram and Twitter? How do Instagram and Twitter differ in managing privacy?

Participants of this research are 15 young Kuwait females studying at Kuwait university in different educational fields. The data collection method used was semi-structured, face-to-face …

Validation Of The Electronic Kids Dietary Index (E-Kindex) Screening Tool For Early Identification Of Risk For Overweight/Obesity (Ow/Ob) In A Pediatric Population: Associations With Quality Of Life Perceptions, Patricia A. Hall

USF Tampa Graduate Theses and Dissertations

Despite a worsening obesity epidemic and despite the American Medical Association (AMA) declaring Obesity a disease (2013), few assessment tools exist that assist practitioners who are charged with identifying risk for development of OW/OB in children. The Center for Health Statistics (2017) reported a 40% rate in obesity in the adult population and 18.5% in children in the U.S. Successful weight loss maintenance after 1 to 2 years of non-invasive treatment is less than 1%, indicating obesity is nearly incurable, making prevention imperative. Assessing risk for OW/OB in children has proven difficult given the lack of validated tools. The purposes …

A Geochemical And Petrological Analysis Of The San Rafael Volcanic Field, Utah, Danielle Koebli

USF Tampa Graduate Theses and Dissertations

The San Rafael Volcanic Field, Utah, is a 4.6 Ma extinct monogenetic field that is found in the Northern Transition Zone of the Colorado Plateau. The field has been eroded, leaving the dikes, conduits, and sills visible. Within the sills we see evidences of immiscibility in the form of an intermediate syenite (~50 wt% SiO₂) enclosed in a mafic shonkinite (~48 wt % SiO₂). Field relations indicate that sills were formed due to single events (Richardson et al., 2015), which makes in-situ differentiation the process at the origin of both rock types. Geochemical data supports differentiation …