Digital Commons Network^™

Technology Literacy Skills Needed In Further Education And/Or Work: A Delphi Study Of High School Graduates’ Perspectives, Christina Louise Smith

USF Tampa Graduate Theses and Dissertations

Technology and the importance of computers in education have been recognized since the educational reform movement of the 1980’s. Change that acknowledged a need for high school students to: understand the computer as an information, computation, and communication device; use computers for personal and work-related purposes; and understand the world of computers, electronics, and related technologies (A Nation at Risk, 1983, p. 26). The study, A Nation at Risk recognized our nation’s lack of computer technology skills and since, the standards in education have changed to design curriculum and integrate technology to better prepare high school students with necessary ready …

From White City To Green Acres: Bertha Palmer And The Gendering Of Space In The Gilded Age, Barbara Peters Smith

USF Tampa Graduate Theses and Dissertations

Throughout an adult life that witnessed drastic cultural upheaval between the Civil War and World War I, Bertha Honoré Palmer (1849-1918) was continually called on to deploy her Victorian values in response to modern events. Being a woman only complicated this negotiation. But being a child of the American frontier granted her a latitude and mobility that were rare for women of her class and era – allowing her to challenge gender boundaries and occupy more than one cultural space at a time. Most of what has been written about Bertha Palmer’s life has been exceptionalist in approach and tone, …

Information Technology & Sustainability: An Empirical Study Of The Value Of The Building Automation System, Daphne Marie Simmonds

USF Tampa Graduate Theses and Dissertations

This study examines the environmental and economic effects of green information technology (IT). Green IT describes two sets of IT innovations: one set includes innovations that are implemented to reduce the environmental impact of IT services in organizations; and the other IT to reduce the environmental impact of other organizational processes. The two sets respond to the call for more environmentally friendly or “greener” organizational processes.

I developed and tested a preliminary model. The model applied the resource based view (RBV) of the firm (Wernerfelt 1984) the stakeholder theory (Freeman 1984) and included four constructs: (1) BAS implementation; environmental …

The Effect Of Urbanization On The Embodied Energy Of Drinking Water In Tampa, Florida, Mark Vincent Eli Santana

USF Tampa Graduate Theses and Dissertations

Increasing urbanization has serious implications for resource and energy use. One of these resources is drinking water. The increased amount of impervious surfaces associated with urban development is responsible for increased runoff during rain events, which may have a negative impact on the quality of nearby bodies of water, including drinking water sources. The growing populations associated with urbanization require a higher water demand. In addition, urban drinking water systems use energy to collect, treat, and distribute a safe reliable effluent to users. Therefore, this study focuses on the degree to which urbanization influences the embodied energy of drinking water …

Essays On The Impact Of Ceo Gender On Corporate Policies And Outcomes, Nilesh Sah

USF Tampa Graduate Theses and Dissertations

In the first essay I examine the cash policies of female-led firms. Recent research finds that female CEOs eschew riskier corporate policies, but it makes contradicting claims whether this is due to risk aversion. Benchmarking risk aversion by the management of firms’ cash, I find that female CEOs are risk averse relative to male CEOs. Specifically, they hold significantly (18%) more cash, even for the same level of dividend payout as male CEOs. Further, they have significantly higher speed of adjustment for cash deficits, are more likely to use excess cash to increase dividends, but are equally likely to use …

Job Satisfaction Of Adjunct Faculty Who Teach Standardized Online Courses, Claudia A. Ruiz

USF Tampa Graduate Theses and Dissertations

The present study investigated the job satisfaction of 205 adjunct faculty teaching standardized online courses at a private university in the United States. The extent of the relationship between demographic, motivator, and hygiene factors associated with adjunct faculty job satisfaction were identified. Results from this study indicate that adjunct faculty value work recognition, technical and instructional technology support, and take pride in their teaching. Important faculty satisfaction predictors based on analyses of hierarchical regression models were motivator factors recognition, achievement, and work itself, and hygiene factors policy and administration and salary.

Health Infor[M-Ed]: Black College Females Discuss A Virtual Reality (Vr) Platform For Sexual Health Education And Training, Henry Arnett Ross

USF Tampa Graduate Theses and Dissertations

Background: College settings are likely environments for Black women to contract STIs (including HIV) or experience unintentional/unwanted pregnancies. Effective prevention strategies for this population include dialogue and activities that focus on gender, maturity, cultural barriers, personal strength, and information needs. However, technological advancements (including virtual reality) and innovation are limited in prevention efforts.

Methods: Four 90-minute focus group sessions were conducted in a convenience sample of Black college females (ages 18 years or older) and a research-intensive public institution in the southeast. A series of surveys were distributed during each audio-recorded focus group session. A mixed-method approach to data analysis …

The Impact Of Lingual Resistance Training In Two Individuals With Amyotrophic Lateral Sclerosis: A Case Series, Raele Donetha Robison

USF Tampa Graduate Theses and Dissertations

Introduction: Amyotrophic Lateral Sclerosis (ALS) is a fatal and progressive disease characterized by the deterioration of motor neurons within the body. This degeneration leads to bulbar dysfunction in the form of an impaired ability to communicate and swallow. Currently, bulbar dysfunction is treated via compensatory methods aimed at maximizing comfort and safety that include environmental adaptations, augmentative and assistive communication and gastrostomy tube placement to replace speech and oral feeding. The role of active intervention is controversial in this patient population and no investigations have examined the potential role lingual exercise might play in ALS bulbar management. The purpose of …

Function Of Long Noncoding Rnas In Breast Cancer, Edward J. Richards

USF Tampa Graduate Theses and Dissertations

Breast cancer is a disease that will be diagnosed in about 1 in 10 women throughout their lifetime. The majority of breast cancers are originated from the epithelial cells of the mammary ducts, and this occurrence can be due to several factors including hereditary and acquired mutation. There are several major breast cancer subtypes, including estrogen receptor-α (ERα)-positive, HER2-enriched and triple-negative (TNBC). Patients diagnosed with ER+ tumors are generally treated with estrogen blockers (e.g., tamoxifen, letrozole and fulvestrant). Patients with HER2+ tumors are commonly administered with drugs that block HER2 signaling (e.g., trastuzumab) or inhibit HER2’s tyrosine kinase activity (e.g., …

“You Better Redneckognize”: White Working-Class People And Reality Television, Tasha Rose Rennels

USF Tampa Graduate Theses and Dissertations

This project documents the complex and interwoven relationship between mediated representations and lived experiences of white working-class people—a task inspired by the author’s experiences growing up in a white working-class family and neighborhood and how she came to understand herself through watching films and television shows. Theoretically guided by Foucault’s recognition that people are constituted in and through discourse, the author specifically analyzes how reality television articulates certain ideas about white working-class people and how those who identify as members of this population, including the author, negotiate such articulations. A focus on white working-class people is important considering their increasing …

Effect Of Timely Treatment On Malaria Gametocytemia In Esmeraldas, Ecuador, Miguel Reina-Ortiz

USF Tampa Graduate Theses and Dissertations

Malaria is a disease that causes great burden in public health worldwide. It was estimated that in 2011 there were 3.3 billion people at risk of acquiring malaria. According to data from the Ministry of Public Health of Ecuador, malaria incidence has shown a 99.9% steady decrease since year 2000. This study evaluated the effect of timely treatment on circulating gametocyte and malaria incidence rates. All cases reported in the province of Esmeraldas, Ecuador from July 2012 to March 2015 and to the national headquarters between February 2012 and December 2014 were studied. The effect of early treatment on: 1) …

Optimization And Control For Microgrid And Power Electronic Converters, Vahid Rasouli Disfani

USF Tampa Graduate Theses and Dissertations

The proposed dissertation research investigates Optimization and Control for Microgrid and Power Electronic Converters. The research has two major parts:

i- Microgrid Operation and Control,

ii- Power Electronic Converter Control and Optimization.

In the first part, three focuses are investigated. First, a completely distributed algorithm is developed for dc optimal power flow problem for power distribution systems as one of the necessary functions considered in unit-commitment problem in day-ahead markets. This method is derived based upon the partial primal-dual representation of the economic dispatch problem, which is finally translated to DC-OPF problem. Second, the optimal interaction between the utility and …

Investigаtiоn Оf 3d Structures Оf Γ-Aaрeрtide Bаsed Peрtidоmimetics, Qiao Qiao

USF Tampa Graduate Theses and Dissertations

Oligomers which have a tendency to form well-defined secondary structures are called foldamers. They offer an attractive opportunity for the design of novel molecules that mimic the structures and functions of proteins and enzymes including biocatalysis and biomolecular recognition. Herein a new class of non-natural γ-AApeptides and their derivatives are synthesized and studied in our lab. Previous studies of γ-AApeptides have revealed that they are highly resistant to proteolysis, and have virtually limitless potential in functional group diversity. However, to improve the bio-activity and explore new bio-applications, the understanding of the folding conformation of γ-AApeptides are necessary. Thus, NMR spectroscopy …

Applications Of Optical Properties From Nanomaterials For Enhanced Activity Of A Titania Photocatalyst Under Solar Radiation, Jon W. Pickering

USF Tampa Graduate Theses and Dissertations

In recent years, employing advanced oxidation processes (AOPs) as a means of wastewater remediation has emerged as a promising route towards maintaining a sustainable global water management program. The heterogeneous photocatalytic oxidation process has been of particular interest due to the prospective of utilizing solar radiation as the driving force behind the degradation of pollutants. Of the photocatalyst studied to date, TiO2 remains the most attractive material for environmental applications due to its affordability, stability, biocompatibility and high quantum yield. A key draw back however is roughly only 5% of solar radiation incident on earth can provide the energy required …

Topographical Enhancement Of Cell Adhesion On Poorly Adhesive Materials, Maritza Muniz Maisonet

USF Tampa Graduate Theses and Dissertations

The overall thrust of this dissertation is to gain a fundamental understanding of the synergistic effects between surface topography and chemical functionality of poorly adhesive materials on enhancing the adhesion of mouse embryonic fibroblasts. Cellular response to surface topography and chemical functionality have been extensively studied on their own providing valuable information that helps in the design of new and improved biomaterials for tissue engineering applications. However, there is a lack of understanding of the synergistic effect of microscale and nanoscale topography with chemical functionality and the relative impact and contribution of each in modulating cellular behavior. By understanding the …

Assessment Of Soil Transmitted Helminth Infection (Sthi) In School Children, Risk Factors, Interactions And Environmental Control In El Salvador., Sharad Suryakant Malavade

USF Tampa Graduate Theses and Dissertations

Background:

Soil transmitted helminth infections (STHI) are important Neglected Tropical Diseases (NTD). The three main STHI are infections with Ascaris lumbricoides, Trichuris trichiura and hookworms. STHI have a significant effect on the growth and development of children. A national survey for STHI in El Salvador by Pan American Health Organization and Ministry of Health in 2012 in school children aged 8years to 10 years. The survey collected data on age, gender, behavioral habits, and source of drinking water, type of toilet facility used and ecological zone of residence.

A) We did an analyses of the data with an aim to …

Effects Of Nicotine On A Translational Model Of Working Memory, David Alderson Macqueen

USF Tampa Graduate Theses and Dissertations

Cognitive research with human non-smokers has demonstrated that nicotine generally enhances performance on tasks of attention but, working memory does not appear to be affected. In contrast, nicotine has been shown to produce robust enhancements of working memory in non-human animals. To address this disparity, the present study investigated the effects of nicotine (2mg, 4mg nicotine gum, and placebo) on the performance of 30 non-smokers (15 male) completing a working memory task developed for rodents (the odor span task, OST). Nicotine has been reported to enhance OST performance in rodents and the present study sought to determine whether the effect …

Validity Of A Nonspeech Dynamic Assessment Of Phonological Awareness In Children From Spanish-Speaking Backgrounds, Bianca Angelica Loreti

USF Tampa Graduate Theses and Dissertations

Literacy development in Spanish-speaking children is a growing concern in the United States (Invernizzi, 2009). Phonological awareness is a predictor of literacy achievement in most alphabetic languages (Anthony et al., 2011; Davison & Brea-Spahn, 2012; Durgunoğlu, Nagy, & Hancin-Bhatt, 1993; Goikoetxea, 2005). Bilingual children with complex communication needs (CCN) demonstrate increased difficulties in speaking, reading, and writing, making learning two languages a difficult task (Toppelberg, Snow, & Tager-Flusberg, 1999). Literacy attainment in bilingual individuals who have CCN is important to improve their overall language development and communication interaction skills (Harrison-Harris, 2002). A valid and reliable phonological awareness assessment that does …

Spatiotemporal Sensing And Informatics For Complex Systems Monitoring, Fault Identification And Root Cause Diagnostics, Gang Liu

USF Tampa Graduate Theses and Dissertations

In order to cope with system complexity and dynamic environments, modern industries are investing in a variety of sensor networks and data acquisition systems to increase information visibility. Multi-sensor systems bring the proliferation of high-dimensional functional Big Data that capture rich information on the evolving dynamics of natural and engineered processes. With spatially and temporally dense data readily available, there is an urgent need to develop advanced methodologies and associated tools that will enable and assist (i) the handling of the big data communicated by the contemporary complex systems, (ii) the extraction and identification of pertinent knowledge about the environmental …

Energy Production And Effluent Quality In Tubular Digesters Treating Livestock Waste In Rural Costa Rica, Maureen Njoki Kinyua

USF Tampa Graduate Theses and Dissertations

Use of tubular anaerobic digesters to treat livestock waste in developing countries has energy, agricultural, health, social and environmental benefits. However, careful use of digester effluent as a soil amendment is required due to the potential presence of protozoan parasites Cryptosporidium parvum and Giardia lamblia. This research investigated the performance of four tubular digesters in the Monteverde region of Costa Rica. High (>75%) volatile solids and BOD5 removal efficiencies were observed, which was attributed to the formation of a biologically active floccular sludge layer. Computational fluid dynamics (CFD) and bioprocess models were developed to evaluate the transport and transformation …

Positive And Holistic Couple Relationship Development, The Soul Mates Model, And Select Pictograms Of Alchemy: A Visual Autoethnography, Luisa De La Lama

USF Tampa Graduate Theses and Dissertations

To help contemporary couples successfully navigate the 21st Century’s individualistic, diverse, multicultural, global, postmodern relationship environment, individual, couple, and family counselors, marriage therapists, couple therapists, family psychologists, relationship coaches, marriage educators, counselor educators, and other helping professionals need to understand and promote the positive, strengths-based, holistic, and wellbeing development of couple relationships to help them succeed and flourish in the long- term.

This qualitative, narrative, visual autoethnography explores the researcher’s own experience of the culture of her 27-year long soul mate relationship with her partner through the lens of Positive and Holistic Couple Relationship Development Theory (PHRDT), its 7- phase …

Environmental Sustainability Of Wastewater Treatment Plants Integrated With Resource Recovery: The Impact Of Context And Scale, Pablo K. Cornejo

USF Tampa Graduate Theses and Dissertations

There is an urgent need for wastewater treatment plants (WWTPs) to adapt to a rise in water and energy demands, prolonged periods of drought, climate variability, and resource scarcity. As population increases, minimizing the carbon and energy footprints of wastewater treatment, while properly managing nutrients is crucial to improving the sustainability WWTPs. Integrated resource recovery can mitigate the environmental impact of wastewater treatment systems; however, the mitigation potential depends on various factors such as treatment technology, resource recovery strategy, and system size.

Amidst these challenges, this research seeks to investigate the environmental sustainability of wastewater treatment plants (WWTPs) integrating resource …

Effects Of Disorder And Low Dimensionality On Frozen Dynamics In Ca3co2-Xmnxo6, Brian Wesley Casas

USF Tampa Graduate Theses and Dissertations

Complex oxides represent an intersection of play grounds for the existence of exciting new fundamental physics and materials with potential technological implications. The realization of many exciting properties of these systems rely on the coupling of electronic, structural and magnetic degrees of freedom. Additionally, competing interactions within each type of coupling discussed previously lead to theoretically diverse ground states, which under the application of an external perturbation, can be tuned and probed.

Ca3Co¬2-xMnxO6 represent a quasi-one dimensional Ising spin chain system oriented in an antiferromagnetic triangular lattice. The exotic behavior of the undoped compound Ca3Co2O6 has inspired work on continuing …

A Study On 2.45 Ghz Bandpass Filters Fabricated With Additive Manufacturing, Nicholas Christian Arnal

USF Tampa Graduate Theses and Dissertations

Square open loop resonator (SOLR) bandpass filters fabricated with additive manufacturing techniques are presented and studied. One filter contains novel 3D capacitive plates used to enhance resonator coupling. The filters are centered at 2.45 GHz and loaded with capacitors for miniaturization as low as 21% that of a conventional SOLR bandpass filter. The pass-band insertion loss of the filters ranges from 3.8 dB to 5.5 dB and the 3 dB bandwidth ranges from 180 MHz to 250 MHz. Also, degradation in the effective conductivity of printed ink as a function of substrate roughness is analyzed. Finally, a study of dielectric …

Using Self-Monitoring And Goal Setting To Increase Swimming In Adults, Sarah Rose Abraham

USF Tampa Graduate Theses and Dissertations

Many people in the United States do not engage in the recommended levels of physical activity. Self-management strategies, including self-monitoring and goal setting, are among the interventions that have been used to increase physical activity in adults. Visual feedback has also been incorporated into interventions to increase physical activity. Minimal research has focused on increasing swimming behavior. The current study investigated the effectiveness of self-management strategies to increase swimming activity in adults. An automated recording device (watch) was used to collect data on participants’ swimming behavior. The effect of self-monitoring in the form of a self-graphing intervention to increase swimming …

The Us Response To Genocide In Rwanda: A Reassessment, Camara Silver

USF Tampa Graduate Theses and Dissertations

This thesis analyzes the US response to the 1994 Rwandan genocide. It argues that in 1994, the US was retooling its stance on humanitarian intervention because of the disastrous US-led Operation Gothic Serpent in Somalia in 1993. Therefore, the American response to the genocide in Rwanda became a casualty of Washington’s reassessment of its humanitarian intervention policy in the 1990s. The reason behind the US adoption of a more muscular humanitarian intervention policy was due in part to the end of the Cold War in 1991. Thus, the US was able to focus on other issues in international affairs, such …

Development Of Polymer Composite Based Enabling Technologies For Lab-On-A-Chip Devices, Vinicio Carias

USF Tampa Graduate Theses and Dissertations

This dissertation presents enabling technologies to fabricate thermo-responsive polymer composite based Lab-on-a-Chip (LOC) devices. LOC devices, also known as micro-total-analytical systems (microTAS) or microfluidic devices can amalgamate miniaturized laboratory functions on a single chip. This significant size reduction decreases the amount of required fluid volumes down to nano or pico-liters. The main commercial application of LOC devices is the biomedical fields. However, these devices are anticipated to make a technological revolution similar to the way miniaturization changed computers. In fact, medical and chemical analyses are predicted to shift from room-sized laboratories to hand-held portable devices.

This dissertation is divided into …

Sarah Sze's "Triple Point": Modeling A Phenomenological Experience Of Contemporary Life, Amanda J. Preuss

USF Tampa Graduate Theses and Dissertations

In 2013, the 55th Venice Biennale, the world's oldest bi-annual international contemporary art exhibition, opened under the title The Encyclopedic Palace, organized by Italian curator Massimiliano Gioni. The international exhibition section is always flanked by an amalgamation of distinct national spaces, a dual exhibition model that has been the hallmark of the Biennale since 1998. In 2013, the United States pavilion was devoted to American artist Sarah Sze's work Triple Point and her signature arrangement of everyday objects and materials, such as Q-tips, water bottles, painter's tape, and desk lamps. The title of Sze's multi-room installation, culled from earlier works …

The Effects Of Blog-Supported Collaborative Writing On Writing Performance, Writing Anxiety And Perceptions Of Efl College Students In Taiwan, Hui-Ju Wu

USF Tampa Graduate Theses and Dissertations

Compared with first language (L1) writing, writing in a second or foreign language (L2) is considered to be more challenging and difficult. The challenges and difficulties may result from both the cognitive and the affective aspects of writing. To mitigate the difficulties of L2 writing and help students master L2 writing, teachers could consider using the pedagogical strategies which can help enhance students' cognition in writing or students' writing performance, and also can help reduce students' fear of L2 writing. One of the pedagogical strategies is online collaborative writing supported by CMC. Collaborative learning helps enhance students' cognitive outcomes, such …

Teaching About Race In Introductory Anthropology Courses: An Ethnographic Study, Jennifer Gilroy Hunsecker

USF Tampa Graduate Theses and Dissertations

American anthropology has focused on issues related to race from the start of the discipline. From past work designed to categorize humans into phenotype-based categories to current work to undo those categorizations, many anthropologists consider race to be one of the most important topics for students to learn. In this dissertation, I use in-depth ethnographic case studies consisting of interviews, observations, and focus groups, to learn about the way in which anthropologists at four institutions of higher education teach the topic to students in their introductory, four-field general anthropology class. I found that anthropologists are committed to sharing anthropological perspectives …