Digital Commons Network^™

De Mestizas A Indígenas: Reindigenization As A Political Strategy In Ecuador, Pamela X. Pareja

USF Tampa Graduate Theses and Dissertations

The 1990s were a period of intense socio-economic upheaval in Ecuador, in part due to the numerous protests that would come to be known as the Levantamiento Indígena. Notoriously disenfranchised since the bloody conquest of the Americas, peoples of various Indigenous nationalities that reside within Ecuador fought for the constitutional recognition of the nation as both plurinational and multicultural, in order to secure intercultural public policies that would affect patterns of agrarian distribution, indigenous education, health, and overall representation. The prominence of the Indigenous movement and the revalorization of the Indigenous identity throughout Ecuador became an attractive vehicle for which …

Validity Of A Dynamic Spanish Assessment Of Phonological Awareness In Emergent Bilingual Children, Kelsey R. Wyman Chin

USF Tampa Graduate Theses and Dissertations

Within the current decade, the number of Hispanic students has doubled so that about 16% of the total student population within the United States are Spanish-speakers (U.S. Census Bureau, 2017). With this growing population comes a responsibility to understand and implement best practices for educating these students. Because literacy is a building-block for learning, one integral part of this responsibility consists of developing valid and reliable means of assessing pre-reading skills that are predictive of later reading abilities (Lonigan, Burgess, & Anthony, 2000; Wagner, Torgesen, & Rashotte, 1994).

English-language learning children are being identified for having reading difficulties and disabilities …

Particles In Welding Fumes, Rebecca T. Williams

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to investigate whether or not differing base metals and filler wires used during welding processes contributed to differing amounts of ultrafine particles (UFP) and nanoparticles being emitted during the welding procedure. The study was also conducted to determine UFP and nanoparticle exposure in the breathing zones of the welders as well as the breathing zones of pipefitters and fire watchers, who commonly sit 6ft behind the welding arc. In order to determine if UFP and NP exposures differed with base metal and filler wire, all welding processes utilized the same welding machine for metal …

Evaluating A Peer-Implemented Intervention For Increasing Physical Activity During School Recess, Carolina E. Luque

USF Tampa Graduate Theses and Dissertations

Physical inactivity is a significant issue in the United States that has been linked to multiple health concerns. Few studies have used behavioral interventions during opportunities available in school, such as recess. There is a need for low effort and accessible interventions to increase children’s physical activity during these opportunities. The purpose of the current study was to evaluate the efficacy of a peer-implemented recess intervention that uses student pairing and feedback to increase physical activity. Step count was recorded by a pedometer. Peer leaders were trained in a group using behavioral skills training. A new leader performed the task-analyzed …

Diversity Of Ssdna Phages Related To The Family Microviridae Within The Ciona Robusta Gut, Alexandria Creasy

USF Tampa Graduate Theses and Dissertations

The gut microbiome is a complex ecosystem of bacteria, viruses, and fungi that strongly influences animal health. The bacterial component, for example, contributes orders of magnitude more gene products to host physiology than the host genome; thus, changes to the composition of these bacterial communities can have profound influences on the health of the animal. By infecting and lysing their hosts, viruses (particularly viruses infecting bacteria or phages) can affect critical functions in these environments, yet the consequences of these infections remain to be fully described. Most studies investigating gut viromes to date have focused on double-stranded DNA (dsDNA) phages …

Therapeutic Modulation Of Alzheimer’S Disease With Biological (Hucbs) And Pharmacological (Lispro) Approaches, Md Ahsan Habib

USF Tampa Graduate Theses and Dissertations

Dementia is the top global public health threat of the twenty first century. Within the dementia spectrum, Alzheimer’s disease (AD) is the most common type of dementia that occurs with aging and accounts for about 60% - 80% of diagnosed cases. But currently available discoveries failed to develop disease-modifying therapies for all patients living with AD. Recent discoveries can only partially slow down cognitive decline in a small subset of patients with limited effectiveness. The heterogeneity and complexity of the pathophysiology of AD indicate that a single drug approach may not be sufficient to prevent disease onset and progression. Human …

The Role Of Fathers In Behavioral Parent Training: An Exploration Of Parent-Related Factors In Parent And Child Treatment Outcomes, Brittany L. Jordan-Arthur

USF Tampa Graduate Theses and Dissertations

Despite a well-documented need for parent training in the treatment and prevention of child behavior problems, as well as the well-documented benefit of including fathers in preventative and treatment interventions, surprisingly little clinical intervention research examines the role of fathers in such trainings. This research examined the role of father involvement in behavioral parent training by examining parent-related characteristics in relation to treatment outcomes for both mothers and fathers, examining differences between mothers and fathers, and examining the additive benefit of including fathers in treatment across two studies. Both studies utilized archival data obtained from a university- and community-based parent …

Defect Laden Metal Oxides And Oxynitrides For Sustainable Low Temperature Carbon Dioxide Conversion To Fuel Feedstocks, Debtanu Maiti

USF Tampa Graduate Theses and Dissertations

The current energy and environmental scenario in the world demands acute attention on sustainable repurposing of waste CO2 to high value hydrocarbons that not only addresses the CO2 mitigation problem, but also provides pathways for a closed loop synthetic carbon cycle. Difference in the scales of global CO2 emissions (about 40 Gtpa, 2017) and the carbon capture and sequestration (CCS) facilities (estimated cumulative 40 Mtpa, 2018) provokes active research on this topic. Solar thermochemical (STC) and visible light photocatalysis are two of the most promising routes that have garnered attention for this purpose. While STC has the advantages of high …

The Nutrition Transition Among The Andean Kichwas Of Ecuador, Vanessa Alicia Chee

USF Tampa Graduate Theses and Dissertations

The nutrition transition is a global phenomenon in which diets have become increasingly westernized and processed while lifestyles have shifted from labor intensive to sedentary, largely on account of the advent of technology, globalization n and urbanization. Despite the prevalence of this phenomenon, very little is known regarding how the nutrition transition has affected the risk of comorbid chronic diseases among indigenous Kichwas communities in Ecuador. Aims of this study are : 1) Identify specific health outcomes (such as diabetes, hypertension, and high cholesterol) associated with the lifestyle risk factors of the nutrition transition among the Andean Kichwas indigenous population; …

Biosorption Of Cobalt By Using Pseudomonas Aerguinosa Bacterial Strain, Abhaysinh Arvind Dharanguttikar

USF Tampa Graduate Theses and Dissertations

A study of biosorption of cobalt metal by Pseudomonas Aerguinosa gram-negative bacterial strain is presented. The present study is carried out to determine the optimum conditions of cobalt biosorption at ultra-low concentration (ppb range) in aqueous solutions. The receptiveness of cobalt metal on the extracellular surface of bacterial strain was examined by varying the pH, Initial concentration of metal and treatment time. Experimental data showed that effect of pH and treatment time is prevalent in biosorption of cobalt and by increasing both these parameters resulted in the efficient sorption of cobalt on the extracellular surface of Pseudomonas Aerguinosa. In some …

A Comparative Study On Coastal Zone Changes And Anthropogenic Impacts Between Tampa Bay, Usa, And Xiangshan Harbor, China, During The Last 30 Years, Qiandong Guo

USF Tampa Graduate Theses and Dissertations

Currently, the U.S. and China are the two largest national economic entities in the world. However, it is noticeable that the two countries have considerably different strategies for economic development, environmental protection and land supply in coastal zones. In order to understand the coastline dynamics, land use land cover (LULC) changes and land management policies in the U.S. and China, a case study of the Tampa Bay (TB) watershed, Florida, U.S., and Xiangshan Harbor (XH), Zhejiang Province, China was conducted. The two areas possess similar humid subtropical climate and dense population, but experienced different anthropogenic impacts. TB sat at a …

Chemical Investigation Of Bioactive Marine Extracts, Selam Hagos

USF Tampa Graduate Theses and Dissertations

Natural products have been a fundamental source of medicinal scaffolds for decades; with sixty percent of marketed drugs. Many synthetic chemists are focused on synthesizing potent and nontoxic compounds for pharmaceutical targets, however, nature is still proving to be a source of new bioactive compounds. Produced by the host organism for defense, reproduction and communication, secondary metabolites also demonstrate promising bioactivity against human pathogens. Hence, natural product chemists continue their quest for new leads.

As a continuation of these efforts, this thesis attempts to explore fungi and sponges for new chemistry, and ultimately, new drug candidates. Antarctica is largely untapped; …

Development Of The Cybersecurity Attitudes Scale And Modeling Cybersecurity Behavior And Its Antecedents, David J. Howard

USF Tampa Graduate Theses and Dissertations

As organizations have become more reliant on computers and technology to operate in a globalized world, they have also become more vulnerable to cyberattacks on their networks. The expense to organizations from cyberattacks now exceeds $400 billion USD annually. These costs highlight the need for behavioral research in the cyber domain. The first phase of this research developed an instrument to measure workers’ cybersecurity attitudes. An iterative process resulted in a scale with good psychometric properties - The Cybersecurity Attitudes Scale. The scale measures two factors: cyber policy adherence attitudes and perceived vulnerability to a cyberattack. The second phase of …

Articulatory Patterns In Children Who Use Cochlear Implants: An Ultrasound Measure Of Velar Stop Production In Bilingual Speakers, Katherine Javier

USF Tampa Graduate Theses and Dissertations

Coarticulation occurs in running speech when one speech sound or phoneme overlaps with another. It can be considered a result of the way we sequence and organize our articulators to efficiently produce consecutive consonants and vowels in fluent speech. Previous research has suggested that measures of coarticulation can provide insight into the maturity of the motor speech planning system (Barbier, Perrier, Ménard, Payan, Tiede, & Perkell, 2013; Zharkova & Hewlett, 2009; Zharkova, Hewlett, & Hardcastle, 2011). Speech stability has also been suggested as an indicator of motor speech maturity in previous research using ultrasound imaging of velar-vowel targets (Frisch, Maxfield, …

The Experience Of Coparenting Within The Parameters Of Divorce: Perspectives From Parents Of Children With Autism Spectrum Disorder, Nycole C. Kauk

USF Tampa Graduate Theses and Dissertations

Autism Spectrum Disorder (ASD) is a disorder that includes persistent impairment in verbal and nonverbal communication, social interaction, and restricted and repetitive patterns of behaviors, interests, or activities. The purpose of this study is to capture the perspectives and experiences of parents who are divorced but are still coparenting their child with ASD. Current literature gives insight into how ASD affects the family system, but there is no literature to date that examines how parents coparent their child when the family system is split. ASD is a lifelong and impactful disorder impacting not just the individual’s adaptive functioning, but also …

Hybridizers And The Hybridized: Orchid Growing As Hybrid "Nature?", Kellie Petersen

USF Tampa Graduate Theses and Dissertations

Orchid growing is a hobby that includes not only acquiring and caring for orchids, but also learning about the diverse care requirements of various orchids, attending meetings of orchid groups, having one’s orchids evaluated by American Orchid Society judges or being a judge, or even creating hybrids. In this way, orchid hobbyists compose a distinctive subculture (Hansen 2000). Yet the activity of orchid growing also forms a nexus between the non-human and the human, two categories that are often constructed as an opposing binary. This thesis focuses on how orchid growing represents both the embedded, institutionalized characteristic of the binary …

An Evaluation Of Marsh Shoreline Erosion And Sediment Deposition In The Grand Bay National Estuarine Research Reserve, Mississippi, Usa, Joseph Terrano

USF Tampa Graduate Theses and Dissertations

Coastal marshes serve important ecologic and economic functions, such as providing habitat, absorbing floodwaters and storm surges, and sequestering carbon. Throughout the northern Gulf of Mexico, coastal marshes are disappearing due to wave attack, sea-level rise, sediment export, and subsidence. Marsh area increases when sediments accumulate at the marsh shoreline, accrete vertically, and when non-marsh areas are colonized by marsh vegetation. Marsh shoreline erosion results in net marsh loss when transgression rates at the marsh-water edge exceed upland-marsh migration. The balance between marsh destroying and marsh creating processes determines the long-term survivability of a marsh system. Thus, processes of shoreline …

Evaluating Video Modeling To Teach Job Seeking Skills: Composing A Professional Email, Scott A. Fontechia Ii

USF Tampa Graduate Theses and Dissertations

Within the disabilities community, individuals with an Autism Spectrum Disorder (ASD) diagnosis consistently have some of the most detrimental employment related statistics. To address this issue, this study evaluated video modeling, an evidence-based procedure, in teaching professional emailing skills to individuals diagnosed with ASD when applying for a job. Results of the study support video modeling research as an effective teaching tool. Significant skill acquisition, in composing a professional email, occurred across all participants. Seventy-five percent of participants concluded the study at mastery level. Implications of this study are immediately impactful on the ASD community as a new evidence-based transition …

Through The Lens Of Objectification Theory: Social Media Use And Women's Behavioral Health, Gina-Maria Roca

USF Tampa Graduate Theses and Dissertations

Background: Objectification theory considers how gender and culture intersect to position women at a greater risk of developing eating disorders, depression, and sexual dysfunction. Self-objectification is defined as the internalization of a third person perspective to view one’s own body, which then leads to mental health consequences of anxiety, body shame, insensitivity to internal drives, and decreased peak motivational states. Body surveillance, the habitual and constant monitoring of the body, denotes the behavioral manifestation of self-objectification. Altogether, the accumulation of objectifying experiences and mental health consequences heighten women’s risks of developing the aforementioned mental disorders.

Rationale: Extant experimental and correlational …

Raptors And Humans: Exploring Alternative Therapies In Non-Clinical Environments Using Birds Of Prey, Kaleigh Hoyt

USF Tampa Graduate Theses and Dissertations

This study aims to deconstruct current conceptions about animal-assisted interventions by investigating relationships between human beings and birds of prey. Interactions between birds of prey, or “raptors,” provide novel cases from which to reexamine failed attempts to provide empirical data in support of alternative therapies. Previous research addressing the efficacy of animal-assisted interventions is simply not robust enough to be considered a feasible treatment option by medical professionals. By extension, models of self-regulation in psychology are often presented using reductionist models and oversimplified therapeutic outcomes. Taken together, raptor-human relationships help to highlight the shortcomings of each, as well as potential …

Partial Characterization Of Plasmodium Falciparum Protein Kinase Abck2 (Pfabck2), Muhammad Khalid

USF Tampa Graduate Theses and Dissertations

Malaria is a major threat to the public health worldwide as it is affecting populations in tropical and subtropical areas globally. Among those populations are around 40% of pregnant women and children who are susceptible to this disease. Plasmodium falciparum is the most lethal agent that causes malaria in human. Currently, there is drug resistance against antimalarial drugs in parasite against treatment of malaria infections, it is essential to search for new drug targets in order to find cure and alleviate suffering of human population.

There are approximately 100 protein kinases in P. falciparum that are involved in phosphorylation of …

Relationship Between Intelligibility And Response Accuracy Of The Amazon Echo In Individuals With Amyotrophic Lateral Sclerosis Exhibiting Mild-Moderate Dysarthria, Caroline A. Layden

USF Tampa Graduate Theses and Dissertations

There is an ever-growing and increasing amount of technology options that use speech recognition software. Currently, the market includes smartphones, computers, and individual smart home personal assistants that allow for hands-free access to this technology. Research studies have explored the utility of these assistive devices for the completion of activities of daily living; however, there is limited research looking at the accuracy of voice recognition software within smart home personal assistants in populations with disordered speech. In persons with amyotrophic lateral sclerosis (ALS), symptoms include changes to motor functions, speech in particular, and it is unknown how some of these …

The Impact Of Vocabulary Knowledge On Nonword Judgments In Spanish-English Bilinguals, Marisa E. Leyden

USF Tampa Graduate Theses and Dissertations

This thesis suggests that the range of vocabulary in an individual’s lexicon has an influence on in their assessment of nonword wordlikeness. The study included thirteen Spanish-English bilinguals who participated in a language dominance questionnaire, standardized assessments of Spanish and English vocabulary knowledge, and Spanish and English wordlikeness judgment tasks. Resulting data demonstrated moderate correlations between vocabulary knowledge and performance on nonword wordlikeness judgement tasks in Spanish and English. Participants with larger lexicons appeared more tolerant of less probable nonwords, those with low phonotactic probability, while those with smaller lexicons were less accepting of nonwords with low phonotactic probability. The …

An Evaluation Of Suicide Risk Assessment And Management Trainings In Clinical Psychology Doctoral Programs, Maureen F. Monahan

USF Tampa Graduate Theses and Dissertations

It has been suggested that mental health professionals are insufficiently trained to assess and manage suicide risk (U.S. Department of Veterans Affairs and Defense [USDVA/DOD], 2013; Goldsmith, Pellmar, Kleinman, & Burney, 2002; Jobes, Rudd, Overholser, & Joiner, 2008; Mirick, McCauley, Bridger, & Berkowitz, 2015; Silverman & Berman, 2014) and this problem may originate during graduate training (Feldman & Freedenthal, 2006; Mackelprang, Karle, Reighl, & Cash, 2014; Rudd, Cukrowicz, & Bryan, 2008; Schmitz et al., 2012). Unfortunately, however, this area has been inadequately studied (Battista, 2007; Cramer, Johnson, McLaughlin, Rausch, & Conroy, 2013; Department of Health and Human Services, 2012; Stuber …

“Livin’ The Dream?” How Veterans Of Operations Enduring Freedom And Iraqi Freedom Negotiate The Experience Of Illness As They Transition From Healthy Warrior To Sick Veteran, Jodie L. Sweezey

USF Tampa Graduate Theses and Dissertations

As combat veterans returned from supporting the wars in Iraq and Afghanistan, questions over the safety of vaccinations as well as exposure to burn pit smoke and toxic metals lying dormant in the sand emerged. For many, returning home was marred by unexplained symptoms followed by diagnoses of autoimmune diseases and/or cancer. This research examines how these veterans negotiate this transition from healthy to sick struggling with the many forces that interact with this transition. I focused on the lived experience of their illness as it is non-verbally expressed through embodiment, verbally expressed through illness narratives, and negotiated to avoid …

Determining Level Of Cognitive Impairment Via Computing Fractals Using A Computer, Kodhanda Karthik Siriyala

USF Tampa Graduate Theses and Dissertations

Mild Cognitive Impairment is a condition that affects an individual's thinking and decision making capabilities. Specifically, it is one where an individual's capabilities of memorizing, thinking and decision making are less efficient when compared to others. In order to diagnose this condition, a conventional method is to provide the subject with a small challenge they should be completed using pen and paper. This thesis focuses on how this method can be converted to a computer based test. A data visualization tool named Processing has been used to develop a system that runs a game-like test, which is completed by individuals …

Evaluating The Influence Of Time Of Day On Activity Engagement In Persons With Dementia, Darienne E. Boyden

USF Tampa Graduate Theses and Dissertations

Dementia is a serious disease affecting a growing number of people. With the onset of dementia comes a decline in social activity engagement which can negatively impact multiple aspects of a person’s life. Research suggests that time of day may influence activity engagement of a person with dementia, but such research is limited. The purpose of this study was to evaluate the influence of time of day on engagement in activities in persons diagnosed with dementia. The secondary purpose of this study was to assess the validity of preference assessments in individuals diagnosed with dementia and determine if low preference …

The Influence Of Instagram Selfies On Female Millennials’ Appearance Satisfaction, Diliara Bagautdinova

USF Tampa Graduate Theses and Dissertations

Scholars have proved negative effects of social network sites on women’s body image caused by social comparison processes. However, only a few studies have examined the effects of Instagram on women’s appearance satisfaction and no selfies were taken into consideration in regard to that issue. The purpose of this research was to examine the social comparison theory through the lens of Instagram selfies and determine the effects of selfies on women’s appearance satisfaction. In-depth interviews with 26 female millennials, ages 18 to 32, reveal the re-defined standard of an ideal body image, shifting away from being skinny to becoming fit, …

An Analysis Of Organ Donation Presentations On Weibo, Shengfei Li

USF Tampa Graduate Theses and Dissertations

This thesis analyzes the presentation of organ donation organization on Weibo. This study used content analysis to find out the Love.Hope organ donation organization’s main content of Weibo’s content.

The main content includes six themes. The theme of popularizing organ donation knowledge is the majority. Through analyzing the correlation of content of each themes with shares, likes, and comments. It is concluded that people are more inclined to engage with Weibo posts with popularization of organ donation knowledge and stories of organ donors and recipients, and people also concern about the organ supply and demand situation in China.

It turns …

Effects Of Body Temperature And General Anesthetics On Intraocular Pressure In Rats, Aditi Pillai

USF Tampa Graduate Theses and Dissertations

Ocular hypertension has been identified as the fundamental risk factor in glaucoma which is the leading cause for irreversible blindness in the world. Understanding the different factors that affect IOP is of utmost importance in clinical management as IOP is considered as the fundamental factor in assessing the efficiency of glaucoma medications. Several studies have attempted to assess factors that could affect IOP including age, body position, blood pressure, anesthetics commonly used during eye operations, etc. However, in most of these studies IOP is measured under anesthesia using rodent models and these anesthetics could affect the IOP measurements directly or …