Digital Commons Network^™

Secreted Factors From Human Umbilical Cord Blood Cells Protect Oligodendrocytes From Ischemic Insult, Derrick Rowe

USF Tampa Graduate Theses and Dissertations

Oligodendrocytes (OL)s are the dominant cell type in the white matter and are integral for synaptic transmission essential for proper neuronal communication between brain areas. Previous studies have shown that intravenous administration of the mononuclear fraction of human umbilical cord blood (HUCB) cells in rat models of stroke reduced white matter injury, gray matter injury and behavioral deficits. Yet the mechanisms used by HUCB cells remain unknown in ischemic injury. These studies will investigate both in vitro and in vivo approaches to elucidate this mechanism in OLs. When mature primary OLs were coincubated with HUCB cells, HUCB cells secreted soluble …

The Impact Of Paternalism And Organizational Collectivism In Multinational And Family-Owned Firms In Turkey, Jennifer Schroeder

USF Tampa Graduate Theses and Dissertations

This correlational study examined the influences of paternalistic leadership behavior (PL) and organizational collectivism (measured at the employee level) on employee reported LMX, job satisfaction and organizational citizenship behaviors (OCBs) in two types of organizations (family-owned firms and multinational organizations) in Turkey. Survey data were collected from (N = 154) employees in family-owned and (N = 159) employees in multinational firms (MNCs). Employees in family-owned firms reported significantly higher levels of PL, organizational collectivism, LMX, and OCBs. Further examination revealed additional differences by organization type, with the family-owned sample showing no significant relationships between study variables and OCBs, in contrast …

Parent Involvement In Children's Schooling: An Investigation Of Measurement Equivalence Across Ethnic Groups, Heather Marie Scott

USF Tampa Graduate Theses and Dissertations

Epstein et al.'s Theory of Overlapping Spheres of Influence focuses on the interaction and communication, or partnerships, among families, schools, and the community to bring the three closer together. The theory works in conjunction with Epstein's typology of parental involvement, which focuses on six types of involvement that are instrumental to a child's development and his/her school and educational success. These serve as the framework for the study and support the construct of parent's involvement in children's schooling.

The purpose of the current study was to conduct further validation analyses of an inventory designed to measure the construct of parent …

El Poder / The Power: Latino/A Literature Inclusion In The Florida High School Language Arts Classroom As A Contributing Deterrent To The Latino/A Dropout Rate, Monica Adriana Sleeter

USF Tampa Graduate Theses and Dissertations

Curricula throughout the country, specifically in the School District of Hillsborough County (SDHC), do not encompass diverse subject matter as it relates to Latino/a students. The primary argument posed in this thesis is that consistent engagement to Latino/a writings in the English language arts classroom can be a positive force that contributes to an increased rate of retention of Latino/a youths in high school and a higher percentage of Latino/a high school graduates. This Latino/a literature can be in the form of supplementary reading material that teachers will have access to that will include Latino/a literature from various authors that …

Perspective Shifting In Relative Clauses By Elementary-Aged Spanish-English Bilinguals: A Cross-Linguistic Study, Xigrid Tayri Soto

USF Tampa Graduate Theses and Dissertations

Language-specific theories of sentence processing suggest that individuals interpret sentences based on the characteristics of their native language (e.g., Bates & MacWhinney, 1989). As such, competing linguistic cues are taken into account (including word order, morphology, and animacy) and the cue selected is most likely to yield a correct interpretation in the native language. However, research in this area has produced conflicting results. MacWhinney (2005) has proposed that examining the role of perspective shifting in sentence comprehension may demonstrate how cognitive and syntactic factors work together to facilitate sentence comprehension. The aim of the current study is to investigate the …

National Identity, Gender, And Genre: The Multiple Marginalization Of Lotte Reiniger And The Adventures Of Prince Achmed (1926), K. Vivian Taylor

USF Tampa Graduate Theses and Dissertations

Contemporary American visual culture is saturated with animation, from websites and advertisements to adult and children's television programs. Animated films have dominated the American box office since Toy Story (1995) and show no signs of relenting, as demonstrated by Up (2009) and Alice in Wonderland (2010). Scholarly interest in animation has paralleled the steady rise of the popularity of the medium. Publications addressing animation have migrated from niche journals, such as such as Animation Journal and Wide Angle, to one of the most mainstream English-language publications, the Modern Language Association's Profession, which included Judith Halberstam's article "Animation" in …

A Comparison Of Latina Women In Centeringpregnancy And Individual Prenatal Care, Tara E. Trudnak

USF Tampa Graduate Theses and Dissertations

CenteringPregnancy is a model of group prenatal care that replaces routine, individual prenatal care. The program brings women together into small groups to receive their care and prenatal education, and is based on three components: risk assessment, education, and support. The model is client-centered, designed to empower pregnant women and support persons, and involves the woman in small group discussions of 8-10 other women of similar gestational age. The group discussions provide support, help women educate each other, and invoke self-monitoring. Currently, there have been few publications that closely examined maternal weight and obesity and associated outcomes in women involved …

Parent Response To Adolescent Self-Injurious Behavior: A Collective Case Study, Kylee Sue Tuls

USF Tampa Graduate Theses and Dissertations

Research in the area of self-injurious behaviors and the family context is still emerging. The majority of research available is quantitative in nature. The limited qualitative research available in this area has been conducted outside of the United States. A collective case study was conducted with four parents with an adolescent that had been admitted to an inpatient psychiatric residential facility with a presenting problem of self-injurious behavior. The purpose of this study was to gain an in-depth, qualitative understanding of the parent perspective and comprehension of adolescent self-injurious behavior including the parents' ideas on how the parent-child relationship or …

The Role Of Program Climate And Socialization In The Retention Of Engineering Undergraduates, Heather Elizabeth Ureksoy

USF Tampa Graduate Theses and Dissertations

Increasing women's participation in the fields of science, technology, engineering and mathematics (STEM) can promote a healthy economy by ensuring a diverse and well-qualified STEM workforce, not only in the quantity of females in the workforce, but diversity in thinking and creativity. It will also send a positive message to young women about the breadth of educational opportunities and career choices they have available to them. However, women continue to participate in engineering education in a far lower rate than men. Attracting and retaining female students has become a challenging problem for the academic engineering community. In this study, a …

Pce Groundwater Quality Assessment Of The University Of Northern Iowa Campus Area, Brian Gedlinske

Graduate Research Papers

Perchloroethylene (PCE), is a colorless, nonflammable, and relatively insoluble chlorinated solvent once widely used for dry cleaning and metal degreasing operations. Because of its past widespread use, poor solvent management practices, and environmental persistence, PCE is a common contaminant found in groundwater supplies. Potential health concerns include liver problems and increased cancer risk.

This research paper presents the findings of an effort to better characterize the spatial, temporal, and transport attributes of a PCE groundwater plume that exists within the Devonian aquifer underlying the University of Northern Iowa campus and the surrounding area in Cedar Falls, Iowa. Findings reveal the …

Examining The Experiences Of A Select Group Of First Year Special Education Teachers: A Multiple Case Study Analysis, Roseanne Kaiser Vallice

USF Tampa Graduate Theses and Dissertations

The attrition rate of beginning special educators has been a constant and growing concern within the field of education (Boe & Cook, 2006, 2008; Brownell, Hirsch, & Seo, 2004; CEC, 2000; Leko & Smith, 2010; Smith & Ingersoll, 2004). Four to five of every ten new special education teachers leave the field within the first five years (CEC, 2000; Olivarez & Arnold, 2006) and beginning special education teachers are more likely than general education teachers to leave the field within the first five years of teaching (Boe & Cook, 2006, Boe, Cook & Sunderland, 2008; Brownell, Hirsch, & Seo, 2004; …

School Psychologists' Communication And Collaboration With Community-Based Mental Health Professionals, Audra St. John Walsh

USF Tampa Graduate Theses and Dissertations

Although collaboration between school psychologists and community-based mental health professionals is essential in the provision of comprehensive and effective mental health services for youth with intensive mental health needs, youth may not receive the full benefit of these coordinated efforts, as collaboration may not occur as often as it should. This study investigated the frequency of communication and collaboration between school- and community-based professionals, the purposes and methods of communication, and the benefits and barriers to collaboration. Survey data from 80 members of the Florida Association of School Psychologists were collected and analyzed. Forty-three percent of school psychologists reported communicating …

Differential Reactions To Men's And Women's Counterproductive Work Behavior, Jason Donovan Way

USF Tampa Graduate Theses and Dissertations

This purpose of this study was to examine the effect that employee gender might have on performance ratings. Specifically, it was thought that negative performance episodes, such as aggressive behavior, might have less of an effect on performance ratings for males compared to females because males have a stereotype of being more aggressive. Additional hypotheses examined how different types of negative performance affected perceptions that the employee was behaving according to their gender ideal, and whether people judged male and female aggressiveness differently. To this end, 134 undergraduate students participated in a 2 x 3 design experiment where they read …

Painting Parisian Identity: Place And Subjectivity In Fin-De-Siecle Art, Chelsea Anne Watts

USF Tampa Graduate Theses and Dissertations

In this thesis I provide analysis of several nineteenth-century artworks in order to elucidate the connections between place and identity as expressed in visual representations of Paris. I utilize Bakhtin's idea of the dialogical as a means of identifying multiple subject positions that might be accessed by particular individuals who live in socially constructed spaces specific to fin-de-siècle Paris. I discuss the construction of three performed identities unique to nineteenth-century Paris: the Flâneur, the bohemian, and the primitivist. In each chapter I will parse out the social construction of the spaces where these identities existed and were performed, and link …

The African American Women's Summit: A Case Study Of A Professional Development Program Developed By And For African American Women Student Affairs Professionals, Nicole Mary-Ella West

USF Tampa Graduate Theses and Dissertations

While African American women have been participating in American higher education for more than a century, they remain significantly underrepresented among college and university administrators. Researchers have noted that when these women are able to secure administrative positions, many of them contend with intense isolation and marginalization, which compromises their personal well-being and jeopardizes their professional success. Black feminist scholars have suggested that African American women may be assisted by involving themselves in supportive networks that provide them the opportunity to connect with other African American women. Further, these scholars contend that these activities should be facilitated by African American …

A Descriptive Study Of The Factors That Prevent Principal Candidates From Advancement To The Principal Position, Robyn Regina Witcher

USF Tampa Graduate Theses and Dissertations

This qualitative study examined the perceived barriers to the principalship by prepared principal candidates as a means of understanding why some candidates are unsuccessful in acquiring a principalship. The use of a questionnaire, interviews, and reflection postcards served as the data collection methods concerning their lack of success in achieving a principal position. Portraitures were used to illuminate the journey of these candidates as they completed the necessary requirements, developed the skill vital to becoming a principal, and interviewed for prospective openings.

The findings revealed that the barrier to the principalship for these candidates is their own lack of awareness …

Geometric Transformations In Middle School Mathematics Textbooks, Barbara Zorin

USF Tampa Graduate Theses and Dissertations

This study analyzed treatment of geometric transformations in presently available middle grades (6, 7, 8) student mathematics textbooks. Fourteen textbooks from four widely used textbook series were evaluated: two mainline publisher series, Pearson (Prentice Hall) and Glencoe (Math Connects); one National Science Foundation (NSF) funded curriculum project textbook series, Connected Mathematics 2; and one non-NSF funded curriculum project, the University of Chicago School Mathematics Project (UCSMP).

A framework was developed to distinguish the characteristics in the treatment of geometric transformations and to determine the potential opportunity to learn transformation concepts as measured by textbook physical characteristics, lesson narratives, and analysis …

Cactus Mucilage-Assisted Heavy Metal Separation: Design And Implementation, Dawn Iona Fox

USF Tampa Graduate Theses and Dissertations

Natural contamination of groundwater by arsenic (As) has become a critical public health threat in many parts of the world. The well-known regions associated with As contamination of groundwater are Bangladesh and West Bengal, India where approximately 100 million people are exposed to high levels of arsenic by drinking arsenic-contaminated groundwater and about 35 million are already affected. Long-term drinking of arsenic-contaminated water leads to arsenicosis, which is characterized by cancers of the skin, organ disease and certain other types of cancer. Affected developing communities are at higher risk because they may not have access to conventional water treatment facilities. …

Public Perceptions Of Organizational Culture And Organization-Public Relationships, Cherisse Fonseca Rivera

USF Tampa Graduate Theses and Dissertations

Almost 30 years ago, public relations scholars began to process the idea that the concept of culture was important to public relations practices. In particular, scholars questioned what influence culture might have on the communication process and relationship building between organizations and their stakeholders. Yet, today culture is still an understudied concept in the public relations literature. The purpose of this study is to analyze how of organizational culture, as defined by Sriramesh, J. E. Grunig, and Dozier (1996), is significant to the relationship outcomes in public relations. The theoretical framework for this study consists of organizational culture theory and …

Actualizing Empowerment: Developing A Framework For Partnering With Families In System Level Service Planning And Delivery, Kathleen Ferreira

USF Tampa Graduate Theses and Dissertations

The engagement of families of children and adolescents with Serious Emotional Disturbance (SED) as full partners in individual treatment, organizational, and system level decision making has become an important focus for systems of care (SOCs) serving youth with emotional and behavioral challenges. SOCs typically include cross-agency partnerships with mental health, child welfare, juvenile justice, and education for the purpose of providing services and supports for youth with SED who have multi-agency needs. Implementation of a federal mandate requiring family driven care (FDC) within systems of care funded through the Children's Mental Health Initiative (CMHI) has revealed that most system of …

Safety Evaluation Of Roadway Lighting Illuminance Levels And Its Relationship With Nighttime Crash Injury Severity For West Central Florida Region, Enrique Gonzalez-Velez

USF Tampa Graduate Theses and Dissertations

The main role of roadway lighting is to produce quick, accurate and comfortable visibility during nighttime conditions. It is commonly known that good lighting levels enable motorists, pedestrians and bicyclists to obtain necessary visual information in an effective and efficient manner. Many previous studies also proved that roadway lighting minimizes the likelihood of crashes by providing better visibility for roadway users.

Appropriate and adequate roadway lighting illuminance levels for each roadway classification and pedestrian areas are essential to provide safe and comfortable usage. These levels are usually provided by national, or local standards and guidelines. The Florida Department of Transportation …

Archaeology And Indigeneity, Past And Present: A View From The Island Of Roatã¡N, Honduras, Whitney Annette Goodwin

USF Tampa Graduate Theses and Dissertations

Project Roatán was initiated in 2008 as a collaboration between the University of South Florida (USF) and the Honduran Institute of Anthropology and History (IHAH) to investigate the prehistory of the island of Roatán, Bay Islands, Honduras. Based on data from the 2009 field season of Project Roatán, this study examines the ways in which native islanders of the Postclassic period (A.D. 900-1500) expressed their social identity and cultural affiliations with contemporaneous groups on northeastern mainland Honduras through their ceramic traditions. These initial investigations serve to evaluate the relationship between islanders and mainland groups and any major differences in terms …

A Case Study Of Selected Female Elementary School Leaders' Perspectives On The, Julie D. Hasson

USF Tampa Graduate Theses and Dissertations

The transition from the comfort of a familiar role, that of teacher, to the discomfort of a new role, that of school administrator, is a transformative process. Transforming oneself requires leaving what is known and venturing into the unknown. Researchers have illuminated women's struggle to attain school leadership positions, but the transformation of females making this change in professional roles is seldom addressed in leadership literature. Although context cannot be ignored, there are some challenges common to many women undergoing this transformation.

Situated in the elementary education setting, this study investigated the perspectives of female, early-career administrators who recently experienced …

A Cross-Cultural Adaptation Of The Irrational Beliefs Inventory From English To Icelandic, Gudmundur Torfi Heimisson

USF Tampa Graduate Theses and Dissertations

The Irrational Beliefs Inventory (IBI) was built to measure self-defeating beliefs as conceptualized in Rational-Emotive Behavior Therapy. The IBI has five factors: worrying, rigidity, problem avoidance, need for approval, and emotional irresponsibility. A three-phase cross-cultural study was conducted to translate and adapt the IBI from English to Icelandic, and a Confirmatory Factor Analysis (CFA) approach was used for a test of factorial validity and cross-cultural invariance.

In Phase 1, the IBI was translated from English to Icelandic, using a forward-translation and back-translation. Two forward-translators and two back-translators were recruited. In Phase 2, qualitative interview methods were used in both the …

Diamond Based-Materials: Synthesis, Characterization And Applications, Qiang Hu

USF Tampa Graduate Theses and Dissertations

The studies covered in this dissertation concentrate on the various forms of diamond films synthesized by chemical vapor deposition (CVD) method, including microwave CVD and hot filament CVD. According to crystallinity and grain size, a variety of diamond forms primarily including microcrystalline (most commonly referred to as polycrystalline) and nanocrystalline diamond films, diamond-like carbon (DLC) films were successfully synthesized. The as-grown diamond films were optimized by changing deposition pressure, volume of reactant gas hydrogen (H2) and carrier gas argon (Ar) in order to get high-quality diamond films with a smooth surface, low roughness, preferred growth orientation and high sp3 bond …

An Evaluation Of The Early Steps Referral Process In Hillsborough County To Detect Delays In Access To Early Intervention Services, Jessica Fry Johnson

USF Tampa Graduate Theses and Dissertations

Early intervention services are important in obtaining better outcomes for infants with a developmental delay or a condition that may result in a delay. In Florida, a primary resource for providing these services is the Early Steps Program. This study analyzed the Early Steps referral process to identify barriers to prompt access. The guiding hypothesis was if differences exist in key outcomes of the referral process, then these differences may reveal where improvements can be made. Improving access to early intervention should produce better outcomes and reduce the costs of services required later by addressing developmental concerns earlier.

The dataset …

Constructing Alternative Christian Identity: An Ethnography Of Jesus People Usa's Cornerstone Festival, Brian Johnston

USF Tampa Graduate Theses and Dissertations

This dissertation examines processes through which alternative Christian identities are constructed, maintained, and performed at the annual Cornerstone Festival in Bushnell, Illinois. Organized and managed by Jesus People USA (JPUSA), an urban commune in Chicago, Illinois, the festival includes non-traditional methods of religious expression including rock music, making camp, play, and community-building. Cornerstone Festival attracts and includes members of the Christian faith who would not otherwise be included in traditionally organized Christian groups and fosters interaction between these less enfranchised members and more traditionally minded and socialized Christian practitioners. JPUSA appropriates the festival format as a method of religious expression …

When Does Fidelity Matter? An Evaluation Of Two Medical Simulation Methods, Nneka Joseph

USF Tampa Graduate Theses and Dissertations

Job or task simulations are used in training when the use of the real task is dangerous or expensive, such as flying aircraft or surgery. This study focused on comparing two types of simulations used in assessments during a Clinical Performance Examination of third-year medical students: computer enhanced mannequins and standardized patients. Each type of simulation has advantages, but little empirical work exists to guide the use of different types of simulation for training and evaluating different aspects of performance. This study analyzed performance scores for different competencies as well as the reliability and validity of the different simulation types. …

Female Teachers As Sexual Predators: A Qualitative Study Of Grades 7-12 In The State Of Florida's Public Schools, Jayme Lynn Joslyn

USF Tampa Graduate Theses and Dissertations

This study's purpose was to discover commonalities and differences among female predators and Florida female teachers who are perceived and reported to harass students sexually. When perceived and reported female sexual harasser and student safety was researched, a breath of studies did not occur. When current studies were reviewed, teacher sexual harassment continued to occur. In this qualitative study, ten Florida public school female teachers who were perceived and reported to sexually harass students were randomly selected. Findings indicted that further research is still needed on female teachers who are perceived and reported to sexually harass students. When researching the …

Goal Compatibility And Emotional Intensity: An Experimental Study Of Graphic Images In Strategic Communication, Lauren Marie Klinger

USF Tampa Graduate Theses and Dissertations

The purpose of this quantitative study is to examine receiver variables involved in strategic communications and to look specifically at the use of graphic images in strategic communication materials. It argues that any complete, general model of persuasion effects will include both goal compatibility and emotional determinants. It argues that some influential theories used in strategic communications scholarship, including the situational theory of publics and the elaboration likelihood model, are incomplete because they have omitted these variables. This study also tests variables related to willingness to communicate, behavioral intention, and attitude towards the organization. These variables are drawn from prominent, …