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Environmental Effects On The Biomechanics And Motor Physiology Of Elastically Powered Movements In Chameleons, Christopher Van Anderson

USF Tampa Graduate Theses and Dissertations

Environmental temperature exhibits profound effects on the activity and ecology of ectotherms through its impact on muscle contractile physiology. While the performance of locomotor behaviors powered by muscle contraction directly decreases by at least 33% over a 10°C drop in body temperature, chameleons are known to feed, presumably with high performance, at body temperatures where sympatric lizard species remain inactive. I propose that ballistic movements that are powered by the recoil of preloaded elastic and collagenous tissues are less thermally dependent than movements that rely on direct muscular power. Despite the reduced thermal sensitivity of the elastic-recoil powered movement, I …

Factors Prospective Students Consider When Selecting An Mba Program, Lorie Plyler Briggs

USF Tampa Graduate Theses and Dissertations

This paper adds to existing literature regarding MBA selection processes and helps identify and better understand the needs that motivate consumers to pursue an MBA degree. Through a series of qualitative, one-on-one interviews with 17 brand-new MBA students or prospective students, this research found that while many people have "always wanted" to earn the advanced degree, most have toyed with the idea of a graduate business degree for many years. The most frequent reasons that people cite regarding their decision to seriously consider an MBA at a large southern university centers around four desires. These are, not surprisingly, the desire …

Evaluation Of A Pilot Land-Based Marine Integrated Aquaculture System, Suzanne Boxman

USF Tampa Graduate Theses and Dissertations

Recirculating aquaculture systems (RAS) produce aquaculture products on land with minimal discharge of waste products and minimal water loss. High costs associated with waste treatment for RAS have triggered the growth of integrated aquaculture systems (IAS) which incorporate macrophytes (aquatic plants) into the treatment train. The objective of this research was to examine a pilot scale inland marine IAS with three different methods for solids treatment: a sand filter followed by a plant bed, only a plant bed, and geotextile bags. Florida Pompano (Trachinotus carolinus) were grown along with Smooth Cordgrass (Spartina alterniflora), Black Needle Rush …

Factors Predicting Pap Smear Adherence In Hiv-Infected Women: Using The Health Belief Model, Crystal L. Chapman Lambert

USF Tampa Graduate Theses and Dissertations

Women infected with the human immunodeficiency virus are at increased risk for developing cervical cancer. Current guidelines reflect that Pap smears should be performed twice during the first year after diagnosis with HIV and annually thereafter. However, women with HIV are not obtaining Pap smears per the current guidelines. The purpose of this study was to evaluate HIV-infected women's attitudes toward cervical cancer and cervical cancer screening. The research design is an exploratory, cross-sectional, quantitative design. The sample of convenience consisted of participants recruited from two ambulatory HIV clinics in Florida. Attitudes were assessed using Champion's Health Belief Model and …

The Harm Of Influence: When Exposure To Homosexuality Elicits Anger And Punishment Tendencies, Timothy Andrew Caswell

USF Tampa Graduate Theses and Dissertations

In the current project, I examined the distinct elicitors and behavioral outcomes of anti-gay anger and anti-gay disgust. The CAD triad hypothesis (Rozin, Lower, Imada, & Haidt, 1999) suggests that anger and disgust are elicited by distinct moral violations and cognitive appraisals. A plethora of research has documented the strong link between disgust and sexual prejudice, but very little attention has been given to the role of anger in sexual prejudice. The biocultural framework of stigmatization (Neuberg, Smith, & Asher, 2000) suggests that people who counter-socialize against prevailing social norms are stigmatized by others. If homosexual sexual behavior does not …

Daily Recovery From Work: The Role Of Guilt, Eunae Cho

USF Tampa Graduate Theses and Dissertations

Acknowledging the critical role that occupational factors play in employee health, researchers have tried to understand ways to reduce the harmful effects of work on employee health. As the process by which individuals recharge resources that have been depleted, recovery has been recognized as important due to its potential to mitigate the negative effects of work on employee well-being. Although the recovery literature has continued to grow, many questions remain unanswered. The purpose of the present study was to expand our knowledge of recovery by examining situational (job characteristics) and individual (trait guilt) predictors of recovery and investigating psychological attributes …

Partial Characterization Of Pf13_0027: A Putative Phosphatase Of Plasmodium Falciparum, Christopher Campbell

USF Tampa Graduate Theses and Dissertations

Signal transduction and stage-specific gene expression are essential components of Plasmodium falciparum development. In this study, the putative phosphatase PF13_0027 is investigated as a critical component of intraerythrocytic development contributing to maturation of the late trophozoite. This putative phosphatase was identified during the course of a large-scale insertional mutagenesis project by insertion of the piggyBac (pB) element, containing a human dihydrofolate reductase (hDHFR) drug selection cassette into the open reading frame (ORF) preventing expression and attenuating parasite development. PF13_0027 codes for a protein with a rhodanese (RHD) and dual specificity phosphatase (DUSP) in a tandem arrangement typically identified with mitogen-activated …

"They Come, But They Don't Spend As Much Money": Livelihoods, Dietary Diversity, Food Security, And Nutritional Status In Two Roatan Communities In The Wake Of Global Crises In Food Prices And Finance, Racine Marcus Brown

USF Tampa Graduate Theses and Dissertations

ABSTRACT

This dissertation explores the associations between recent global crises in staple food prices and finance and the following aspects of life in two communities on the island of Roatàn, Islas de La Bahia (Bay Islands), Honduras: household livelihoods; food commoditization; dietary diversity; food security; and nutritional status. The aims of this study are: ) assess the geographic and economic source(s) of foods consumed by two different communities on Roatàn; b) discover how the most recent economic and food crises have affected foodways and nutrition on Roatàn; c) assess how these crises have affected economic growth of the tourism sector …

The Role Of Molecular Chaperones In The Etiology And Treatment Of Psychiatric Diseases In The Elderly, John Clarence O'Leary

USF Tampa Graduate Theses and Dissertations

The elderly are at increased risk for developing psychiatric diseases, which include Alzheimer's disease, depression, anxiety and suicide. The probability of multiple disease comorbidity is also increased in the elderly. At the cellular level, the loss of protein homeostasis is often at the root of disease emergence, and thus the scientific community is searching for ways to help maintain this balance. A vast group of proteins that are paramount to balancing and counterbalancing protein levels is the molecular chaperone protein group, which has evolved a tremendous variety of functions in the cell. They aid in protein trafficking, folding, receptor signaling, …

Socioeconomic Factors' And Water Source Features' Effect On Household Water Supply Choices In Uganda And The Associated Environmental Impacts, Christine M. Prouty

USF Tampa Graduate Theses and Dissertations

Over the last twenty years or more, Uganda has benefitted from significant strides in water and sanitation initiated by the United Nations' Millennium Development Goals. While the rapid progress towards development has been vastly beneficial, it is also important that it does not occur at the expense of the environment. The environmental impacts of these water sources must be evaluated and understood. However, to develop a robust understanding of the impact requires inclusion of the community members who use these sources and their perceptions of them. Consequently, the goal of this research is to investigate the interrelationships between socioeconomic factors, …

The Elimination Of Blindness: An Ethnographic Exploration Of The Fight Against Trachoma In Niger, Kelley Cosby Sams

USF Tampa Graduate Theses and Dissertations

The goal of this study is to explore specialized and popular cultural models of trachoma, and the interaction between the trachoma elimination program and its target audience in one trachoma hyper-endemic intervention community. Eighty four million people worldwide, mainly children, are infected with active bacterial trachoma. For some, this will lead to painful and progressive corneal opacity and eventual blindness. The disease is most commonly spread by person-to-person contact or by flies, and affects very specific populations living in resource-poor areas such as rural Niger, which has one of the highest prevalence rates worldwide.

The World Health Organization formed an …

The Saliva Microbiome Of Pan And Homo, Jing Li, Ivan Nasidze, Dominique Quinque, Mingkun Li, Hans Peter Horz, Claudine André, Rosa M. Garriga, Michel Halbwax, Anne Fischer, Mark Stoneking

All Peer-Reviewed Publications

Background: It is increasingly recognized that the bacteria that live in and on the human body (the microbiome) can play an important role in health and disease. The composition of the microbiome is potentially influenced by both internal factors (such as phylogeny and host physiology) and external factors (such as diet and local environment), and interspecific comparisons can aid in understanding the importance of these factors. Results: To gain insights into the relative importance of these factors on saliva microbiome diversity, we here analyze the saliva microbiomes of chimpanzees (Pan troglodytes) and bonobos (Pan paniscus) from two sanctuaries in Africa, …

Sense Of Place In An Unincorporated Community:, Samuel Scott Sanderson

USF Tampa Graduate Theses and Dissertations

Abstract

Residents of communities that are at the edge of the rural-urban divide are likely to have many senses of place reflective of the changes occurring around them. As the place where they have resided in and identify with becomes transformed by changes in land use and social composition, these residents may be forced to either adapt or leave. Often overlooked, these individuals may feel as if the place where they have long resided is no longer their home. As the familiar routes, stores, and neighborhoods give way to new highways, big name stores, and exclusive subdivisions, their understanding of …

Community Arts In The Lives Of Disadvantaged African American Youth: Educating For Wellness And Cultural Praxis, Mabel Sabogal

USF Tampa Graduate Theses and Dissertations

The main purpose of this study was to analyze the role and potential of community arts programs and organizations in improving the lives of disadvantaged African American youth, through the creation of a participatory video project and the internal evaluation of the same; using applied anthropological methods, and cultural praxis (an innovative educational design), and following the recommendations of expert community arts programs evaluators. The study responds to the need identified in the community arts literature to offer robust program evaluations that explain the benefits of such programs. The lack of evidence seems to derive not only from the difficulties …

The Effect Of Rate Change On The Relative Timing Of Speakers With Multiple Sclerosis, Brandlynn N. Reister

USF Tampa Graduate Theses and Dissertations

Relative timing ratios are a useful measure for determining the temporal regularities of speech. The timing intervals that make up these ratios are thought to be important when creating the motor plan for an utterance (Weismer & Fennell, 1985). In fact, these ratios have been shown to be remarkably stable, even when speakers deliberately increase their rate (Tuller & Kelso, 1984; Weismer & Fennell, 1985). The constancy of these ratios also has been demonstrated in speakers with known speech timing disturbances, like the dysarthrias associated with Parkinson's and Huntington's disease (Goberman & McMillan; Ludlow, Connor, & Bassich, 1987; Weismer & …

Beyond The Door: Disability And The Sibling Experience, Morgan Violeta Sanchez Taylor

USF Tampa Graduate Theses and Dissertations

This thesis explores the experiences of adult siblings of individuals with impairments. It expands on the existing literature by exploring the complexity of the sibling experience of disability while moving beyond the concepts of burden and maladjustment that have characterized much of the previous literature. In addition, it expands upon and extends to the sibling experience an emerging view of disability by examining the ways in which themes identified in sibling narratives cross lines between the Medical and Social Models of Disability. Building on work by Mark Priestly and Tom Shakespeare, I call this emerging view the Interactional Model of …

Insight Into The Use, Perception, And Value Surrounding Domestic Water In Peru: Envisioning Demand Management In An Intermittent, Small-City, Service Context, Merril Augusta Putnam

USF Tampa Graduate Theses and Dissertations

Population growth, urbanization, degrading water quality, and climate change are making management of scarce water resources an increasingly difficult task for the domestic sector. It is recognized that in order to manage urban water resources demand management is requisite. Demand management has been experimented with in large cities of developing countries but continued focus on expanding supply overshadows its potential benefits and ultimate success. In order to manage demand, it must be measured and understood. Intermittent water services are prevalent in developing countries, but unmetered domestic water use under such conditions has not been carefully studied. This study conducted 1,149 …

Occurrence, Diversity And Pattern Of Damage Of Oplostomus Species (Coleoptera: Scarabaeidae), Honey Bee Pests In Kenya, Ayuka T. Fombong, Fiona N. Mumoki, Elliud Muli, Daniel K. Masiga, Richard T. Arbogast, Peter E.A. Teal, Baldwyn Torto

All Peer-Reviewed Publications

Several arthropod pests including the hive beetles Aethina tumida and Oplostomus haroldi and the ectoparasite Varroa destructor have recently been identified as associated with honey bee colonies in Kenya. Here, we report the first documentation of Oplostomus fuligineus in Kenya, a related scarab of O. haroldi, and distribution, diversity and pattern of damage of the two scarab species on honey bee colonies. Sequence analyses of mitochondrial cytochrome oxidase I gene revealed that there was sufficient sequence divergence to separate both Oplostomus beetles. The same molecular marker separated O. haroldi according to place of origin in Kenya. We further show from …

Strategic Messaging In A Political Crisis: Testing The Integrated Model For Explaining The Communication Behavior Of Publics, Tiffany Lynn Schweickart

USF Tampa Graduate Theses and Dissertations

Crisis response message strategies were examined using a post test-only randomized experiment (N=252) to determine their influence on perceptual, cognitive, and motivational antecedents to communication behavior in a political context. Results indicate that: (1) strategy type influences perceived strategy effectiveness; (2) situational beliefs influence situational motivation, subjective norm, and attitudes; (3) subjective norm and attitudes influence behavioral intention; and (4) referent criterion, situational motivation, and behavioral intention influence communicative action in publics during a political crisis.

Mass Spectrometry-Based Methods For The Detection And Characterization Of Protein-Tyrosine Nitration, Kent W. Seeley

USF Tampa Graduate Theses and Dissertations

Protein tyrosine nitration (PTN) is a posttranslational modification resulting from oxidative/nitrosative stress that has been implicated in a wide variety of disease states. Characterization of PTN is challenging due to several factors including its low abundance in a given proteome, preferential site modification, multiple target site proximity within unique peptide sequences, and analytical method and instrument limitations. Current analytical techniques are insufficiently sensitive to identify endogenous nitration sites without incorporation of either nitrotyrosine or target protein enrichment. However, enrichment proficiency can also be inadequate. Chemical derivatization of the nitro- moiety can be incomplete or result in undesirable byproduct formation, while …

Love Is In The Air: Olfaction-Based Mate-Odour Identification By Jumping Spiders From The Genus Cyrba, Ana M. Cerveira, Robert R. Jackson

All Peer-Reviewed Publications

Jumping spiders (Salticidae) are known for having good eyesight, but the extent to which they rely on olfaction is poorly understood. Here we demonstrate for the first time that olfactory pheromones are used by two species from the salticid genus Cyrba (C. algerina and C. ocellata). Using a Y-shape olfactometer, we investigated the ability of adult males and females of both species to discriminate between mate and non-mate odour. A hidden spider or a spider's draglines (no spider present) were used as odour sources. There was no evident response by females of either Cyrba species to any tested odour. Males …

Cultivating Local: Building A Local Food System In Western North Carolina, Allison S. Perrett

USF Tampa Graduate Theses and Dissertations

This dissertation examines a movement in Western North Carolina to build a local food system, one grounded in the conditions and relationships of place. In 2000, Mountain Family Farms launched the Local Food Campaign to raise public awareness about the region's farms and farming heritage, to educate consumers about the benefits of buying food grown by local farms, and, ultimately, to build markets for locally grown food to sustain the region's farms. The campaign sparked a social movement and over a decade later local farms and locally grown food are a palpable feature of life in the mountains of Western …

The Inflammatory Response Initiated By The Spleen To Ischemic Stroke, Hilary Seifert

USF Tampa Graduate Theses and Dissertations

The peripheral immune system plays a role in delayed neural injury after stroke. This response originates from the spleen as splenectomy prior to middle cerebral artery occlusion (MCAO) in rats significantly reduces infarct volume in the brain. This research is based on the hypothesis that inhibiting the splenic response will reduce neurodegeneration after stroke. Studies in animals have implicated lymphocytes as the immune cell type that is detrimental following MCAO. Interferon gamma (IFNγ) has been identified as a pro-inflammatory cytokine that is also detrimental following stroke. IFNγ is important because it activates microglia and macrophages in a pro-inflammatory nature that …

Fracking Teco: Analyzing The Communication Strategies In Teco Peoples Gas Advertisements, Magdaline Southard

USF Tampa Graduate Theses and Dissertations

Abstract

TECO advertisements promote the use of natural gas as an energy source because it claims that natural gas is an environmentally responsible alternative to other sources of energy. However, these advertisements do not reveal the not-so-green process, namely hydraulic-fracturing, or fracking, by which natural gas is produced and the consequences that it can and does have on public health and the environment. Even though the conversation about fracking has been on the rise in recent years as certain companies and politicians have pushed for an increase in natural gas production, scholars have yet to examine the communicative strategies used …

Community And Household Management Strategies For Water Supply And Treatment In Rural And Peri-Urban Areas In The Developing World, Ryan William Schweitzer

USF Tampa Graduate Theses and Dissertations

Eighty percent of the 780 million people worldwide that access water from an unimproved source live in rural areas. In rural areas, water systems are often managed by community based organizations and many of these systems do not provide service at the designed levels. The Sustainability Analysis Tool developed in Chapter 2 can inform decision making, characterize specific needs of rural communities in the management of their water systems, and identify weaknesses in training regimes or support mechanisms. The framework was tested on 61 statistically representative geographically stratified sample communities with rural water systems in the Dominican Republic. The results …

Spiritual Life Review With Older Adults: Finding Meaning In Late Life Development, Alicia Margaret Stinson

USF Tampa Graduate Theses and Dissertations

ABSTRACT

Spirituality has been recognized as a positive factor in the lives of older adults, especially as it influences their emotional, mental, and physical well-being. This convenience sample study included 17 older adults residing at a faith based continuing care retirement community in Florida. The sample was represented by Caucasian older adults with an average age of 84 years, highly educated, majority Protestant and mostly female. Spiritual life reviews were conducted using spiritual life maps (Hodge, 2005) and semi-structured interview questions. Erikson's epigenetic stage of ego-integrity was used along with Butler's life review process and Tornstam's gerotranscendence as a conceptual …

Descriptions Of Clinical Teaching Excellence In The First Two Years Of Medical School: The Views Of Academic And Community-Based Preceptors, Patricia Anne Stubenberg

USF Tampa Graduate Theses and Dissertations

The changing dynamics in patient care, along with the increasing role of early clinical experiences and community-based teaching models, can be a catalyst in furthering important research and training for clinical teaching excellence. Curricular challenges as well as limited scholarly work generate educational possibilities for study. Embracing a strong educational doctrine of teaching excellence in undergraduate medical education will help shape the future of health care and ultimately enhance patient care.

This grounded theory study (a) described and explained descriptions of teaching excellence among first and second year academic and community-based preceptors in the Longitudinal Clinical Experience (LCE) program at …

Harmful Algal Blooms Of The West Florida Shelf And Campeche Bank: Visualization And Quantification Using Remote Sensing Methods, Inia Mariel Soto Ramos

USF Tampa Graduate Theses and Dissertations

Harmful Algal Blooms (HABs) in the Gulf of Mexico (GOM) are natural phenomena that can have negative impacts on marine ecosystems on which human health and the economy of some Gulf States depends. Many of the HABs in the GOM are dominated by the toxic dinoflagellate Karenia brevis. Non-toxic phytoplankton taxa such as Scrippsiella sp. also form intense blooms off the Mexican coast that result in massive fish mortality and economic losses, particularly as they may lead to anoxia.

The main objectives of this dissertation were to (1) evaluate and improve the techniques developed for detection of Karenia spp. blooms …

The Black Freedom Struggle And Civil Rights Labor Organizing In The Piedmont And Eastern North Carolina Tobacco Industry, Jennifer Wells

USF Tampa Graduate Theses and Dissertations

This thesis examines labor organizing in the U.S. South, specifically the Piedmont and eastern regions of North Carolina in the mid-twentieth century. It aims to uncover an often overlooked local history of civil rights labor organizing which challenged the southern status quo before America's 'mainstream' civil rights era of the 1950s and 1960s. This study argues that through labor organizing, African American tobacco workers challenged the class, gender, and race hierarchy of North Carolina's very profitable tobacco industry during the first half of the twentieth century. In doing so, the thesis contributes to the historiography of black working class protest, …

Knowledge, Attitudes And Traditions Regarding Water Consumption And Sanitary Practices Of The Ngäbe-Buglé Indigenous Women In The Chiriquí Province In Panama, Natalia Vega

USF Tampa Graduate Theses and Dissertations

Background: In 2007, approximately 66.2% of the population of the Comarcas (indigenous reservations) in Panama had access to potable water. However, over 50% of this population lacked access to sanitation. As a result, the leading causes of death in the Comarca Ngäbe-Buglé are due to severe diarrhea and gastroenteritis of infectious origin. The present project assessed the need for an in-depth understanding of the Ngäbe-Buglé women and their communities regarding their knowledge, attitudes, beliefs and behaviors about water and sanitation. Methodology: In this cross-sectional exploratory study, a convenience sample of 52 women were interviewed, utilizing a questionnaire guided by the …