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Modeling Food Security, Energy, And Climate And Cultural Impacts Of A Process: The Case Study Of Shea Butter In Sub-Saharan Africa, Colleen Claire Naughton

USF Tampa Graduate Theses and Dissertations

Millions of people in the world, particularly women and people in sub-Saharan Africa, suffer from hunger and poverty. Three of the major 2015-2030 United Nation’s Sustainable Development Goals (SDGs) aim to eliminate hunger through food security and sustainable agriculture, eradicate poverty, and achieve gender equality through women’s empowerment. Shea trees and their associated fruit and butter can play a major role in each of these three SDGs for women and their families throughout sub-Saharan Africa. Shea trees are located over a wide expanse stretching more than 5,000 kilometers across over eighteen countries in sub-Saharan Africa. These trees produce fruit that …

The Ecological Succession Of Mosquitoes Inhabiting Waste Tires In A Subtropical Swamp And Upland Forest In Central West Florida, Emily Thuong Nguyen Dinh

USF Tampa Graduate Theses and Dissertations

Literature has not yet seen a contribution involving the description of successional patterns of mosquitoes (Diptera: Culicidae) inhabiting discarded automobile tires in sylvan areas nor an investigation into the macro- and micro-environmental factors that may influence the seasonal shifts in species composition and abundance in that respective habitat. Waste tires in undeveloped forests are a hazard to human and animal health because they can support a population of vector mosquitoes. Locating productive waste tire mosquito habitats is problematic in wooded areas but is crucial for diminishing pathogen transfer in areas where humans have regular access to forests because of possible …

Resource Recovery Through Halophyte Production In Marine Aquaponics: An Evaluation Of The Nutrient Cycling And The Environmental Sustainability Of Aquaponics, Suzanne Boxman

USF Tampa Graduate Theses and Dissertations

Aquaculture, the farming of aquatic animals and plants, is an important component of global food production, which supplies a nutritious protein source for millions of people. Interest in improving the sustainability of aquaculture has led to the development of aquaponics in which fish production is combined with plant production to create zero-discharge systems. A need for more fundamental science and engineering research on marine aquaculture and growing interest in production of halophytes motivated this novel research on marine aquaponics. One objective was to evaluate the growth and nutrient removal capacity of halophytes in marine aquaponics. Bench-scale studies were conducted to …

The Relationship Between Social Networks, Exchange And Kids’ Food In Children’S Peer Culture, Stephanie Tillman Melton

USF Tampa Graduate Theses and Dissertations

This study investigates children’s peer culture, social networks and the role that kids’ food plays in peer exchanges during middle childhood. During this stage children develop social competencies as they join peer groups with other children and become socialized into children’s peer culture. In order to immerse myself within children’s culture, I conducted ethnographic fieldwork at two afterschool programs providing care for elementary school children. I investigated friendships, social networks and exchanges among third through fifth grade children at the programs. The study included participant observation and participatory group interviews with a sample of the children at both sites. The …

The Relationship Of Childhood Stress To Adult Health And Mortality Among Individuals From Two U.S. Documented Skeletal Collections, Late 19Th To Early 20Th Centuries, Rhonda Coolidge

USF Tampa Graduate Theses and Dissertations

Although the association between social inequality and poor adult health is well established, the mechanisms by which inequality is translated into poor adult health are less clear. Increasingly, evidence suggests that many adult health problems and health disparities have their origins in early life; the developmental origins of health and disease (DOHaD) hypothesis provides an explanatory mechanism linking adverse early life conditions with permanent structural or functional changes that increase the risk for disease. This hypothesis is consistent with bioarchaeological research noting reduced lifespan among individuals exhibiting signs of childhood stress.

The principal aim of this dissertation is to contribute …

Lipoproteins And Health Outcomes: Cognitive And Physical Function In Older Adults, Marianne Chanti-Ketterl

USF Tampa Graduate Theses and Dissertations

Cardiovascular health is a major determinant of quality of life and mortality, especially in older adulthood. With the world’s oldest population increasing at expedited rates, challenges from cardiovascular conditions and its implications are spawning. Although it is well known that dyslipidemia may lead to cardiac events, less is known about the effects on cognitive and physical function in older adults. Epidemiological studies show that optimizing current preventive strategies even at older ages may reduce the incidence of cardiovascular comorbidity (e.g. hypertension, stroke) and increase quality of life. Determining the association between lipoproteins and cognitive and functional performance in older adults …

A Comparative Analysis Of Portable X-Ray Fluorescence Spectrometry And Stable Isotopes In Assessing Ancient Coastal Peruvian Diets, Theresa Jane Gilbertson

USF Tampa Graduate Theses and Dissertations

This dissertation explores a cross-cultural analysis of the dietary signatures of four coastal cultures of prehistoric Peru. A combination of elemental analysis based on portable x-ray fluorescence spectrometry (pXRF), testing trace elements presented in 209 individuals’ skulls representing the Nazca (38), Cañete (33), Lima (40), and Moche (98) valleys and/or cultures of the first millennium AD, is weighed in conjunction with isotope ratio mass spectrometry (IRMS) to analyze human bone collagen and bone apatite derived from a portion of the individuals represented in the Nazca, Cañete, and Lima cranial samples.

Evidence from the results of both tests are weighed using …

Molecular And Phenotypic Studies Validating The Role Of The Ecdysone Receptor In The Human Parasite Brugia Malayi, Amruta Mhashilkar

USF Tampa Graduate Theses and Dissertations

Filariasis and onchocerciasis are debilitating diseases affecting 120 million people globally. The massive socio-economic impact of these diseases energized the international community to declare a goal of eliminating filariasis 2020. This resulted in a dramatic increase in the efforts to eliminate filariasis and onchocerciasis, employing a strategy of mass drug administration (MDA). However, these programs rely upon the small arsenal of drugs. This leaves these programs vulnerable to failure in the face of developing resistance and local intolerance to the current drug regimens. Thus, new drugs against these infections are critically needed. A homologue of the ecdysone receptor (EcR), a …

Pathogen Removal In Natural Wastewater Treatment And Resource Recovery Systems: Solutions For Small Cities In An Urbanizing World, Matthew Eric Verbyla

USF Tampa Graduate Theses and Dissertations

Sanitation, renewable energy, and food security are among the most pressing global development needs of the century, especially for small cities with rapid population growth. Currently, 53% of the world’s population either lacks access to improved sanitation or discharges fecal waste to the environment without treatment. Furthermore, 80% of food consumed in developing regions is produced by 500 million small farms, and while many of them are still rain-fed, irrigated agriculture is increasing. The post-2015 Sustainable Development Goals, recently adopted by the United Nations, include targets to address the water-energy-food nexus. Wastewater reuse in agriculture can be an important solution …

Use Of Spirometry For Medical Clearance And Surveillance In Occupations Requiring Respirator Use, Ushang Prakshbhai Desai

USF Tampa Graduate Theses and Dissertations

Medical certification of workers for respirator use is an important activity of occupational medicine health professionals. Spirometry is a diagnostic tool to evaluate respiratory distress/insufficiency that may affect respirator use. In this study, we analyzed the pulmonary function data of 337 workers from different occupations which required medical evaluation to wear a respirator. The American Thoracic Society and National Fire Protection Association criteria were used to evaluate employees. Of 337 workers who were cleared for respiratory use on the basis of medical questionnaires for respirator compliance, 14 (4.15%) failed to pass respirator compliance on the basis of NFPA criteria and …

Basal Salivary Oxytocin And Skin To Skin Contact Among Lactating Mothers Of Premature Infants, Jessica Marie Gordon

USF Tampa Graduate Theses and Dissertations

This dissertation research explored mechanisms of human milk (HM) expulsion by describing the effects of skin to skin contact (SSC) on maternal basal oxytocin (OT) secretion among 20 premature mothers with hospitalized premature infants. This one-group, repeated measures design consisted of: 1) daily SSC with covariant data via self-report diary and 2) maternal salivary OT with and without SSC at 4 time points were collected over a 7 day time frame. Results indicate that mean levels of basal OT increase over time (M 234 pg/ml, SD 108 pg/ml time point 1; M 257 pg/ml, SD 125 pg/ml time point 3). …

In Situ Studies Of Limestone Dissolution In A Coastal Submarine Spring, Rachel Marie Schweers

USF Tampa Graduate Theses and Dissertations

Limestone dissolution in karst environments is likely due to geochemistry of the water, the actions of microbial communities, and the effect of water flow. We explored the rate of limestone dissolution and will examine here the microbial communities associated with the limestone. A conduit within the brackish cave, Double Keyhole Spring, on the coast of central west Florida was the site of the experiment. PVC pipes (5cm x 16cm) were filled with crushed limestone that was screened to a 1.9cm – 2.54cm size range. There were three treatments (5 replicates each): Control - sealed autoclaved controls with limestone and conduit …

The Influence Of Relationship Status On Hpv Vaccine Decision-Making Among Young Adult Women, Erika L. Thompson

USF Tampa Graduate Theses and Dissertations

Background: The HPV vaccine is a primary prevention method available to reduce the burden of HPV-related cancers and genital warts. The vaccine is currently approved for catch-up vaccination among women 18 to 26 years of age. Despite this recommendation, the rate of vaccine uptake among this group is considerably low (~34% uptake). One demographic characteristic that is consistently reported as a risk factor for non-vaccination is relationship status, specifically married or monogamous relationships. While the epidemiological data confirm this association, there is a lack of understanding how this risk factor operates. By elucidating the mechanism for this risk factor, …

The Effects Of Parent-Adolescent Communication And Parenting Style On The Physical Activity And Dietary Behaviors Of Latino Adolescents, Dianna Mary Boone

USF Tampa Graduate Theses and Dissertations

The obesity epidemic among children and adolescents has been growing rapidly over the past 10 years, particularly in Latino children. Multiple researchers have found support for positive associations between parent-child communication and healthy nutrition and exercise behaviors. The present study examined the relations between parent-adolescent communication and parenting style and the dietary and exercise behaviors of Latino adolescents. The study included 79 adolescents between the ages of 13 and 18 years and their parents (100% are Latino). Correlation and hierarchical regression analyses were conducted to determine which parenting style and communication variables are significantly associated with adolescents’ dietary and physical …

A Forward Genetic Screen Identifies Factors Associated With Fever Pathogenesis In Plasmodium Falciparum, Phaedra J. Thomas

USF Tampa Graduate Theses and Dissertations

Infectious diseases that spread from person-to-person and continent-to-continent are a cause for concern for any health entity. One such disease is malaria, a mosquito-borne infection instigated by the protozoan parasite, Plasmodium falciparum. Hundreds of millions of people are affected annually and it is responsible for nearly 1 million deaths. It is the most fatal species causing malaria and proliferates in human red blood cells with a life cycle occurring every 48 hours. At this time, the parasite’s late stage form or schizont bursts from the erythrocyte releasing immune-inducing particles and infective forms (merozoites) into the bloodstream. The merozoites go …

A Community Of Isolation: An Ethnographic Examination Of Mothering In Poverty And Its Impact On Food Security In Pinellas County, Florida, Amanda M. Terry

USF Tampa Graduate Theses and Dissertations

The objective of this dissertation is to document the lived experience of mothering in poverty and the unique challenges the role of mother presents to maintaining food security. Millions of households in the United States are struggling to put food on the table, a problem made worse by the current economic recession and high food prices. Among them, households with children and specifically, single mothers, report the highest prevalence of food insecurity. While Federal food assistance programs are available to help alleviate this issue, the continued problem of hunger is a very real and pervasive concern for millions of American …

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 …

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 …

Are Customers Ready For Tablet-Based Menus? An Analysis Of The Innovation Characteristics That Influence The Intentions To Adopt Tablet-Based Menus, Nataly Suarez

USF Tampa Graduate Theses and Dissertations

Since the release of the new iPad in 2010, few studies have explored the idea of tablet- based menus in restaurants. Since this is a new topic in the hospitality industry, there has not been literature that explores how personal traits influence the adoption intention of tablet-based menus. This study aims to explain the impact of innovation characteristics and individual differences on customer intentions to adopt tablet-based menus in restaurants of different service levels. With a random sample of 430 participants collected via Amazon’s Mechanical Turk, a regression analysis and an ANOVA test were performed. The results confirmed that only …

Investigation Of Bioactive Metabolites From The Antarctic Sponge Dendrilla Membranosa And Marine Microorganisms, Chris G. Witowski

USF Tampa Graduate Theses and Dissertations

Natural products continue to be a valuable source of compounds in research involving chemical ecology and drug discovery. Secondary metabolites are biosynthesized to benefit the host organism in its environment (feeding deterrence from predators, antibiotic properties to avoid infection, etc.) but these compounds also serve as useful scaffolds in drug discovery applications. The research herein describes both aspects of these two branches of natural products chemistry. The Antarctic sponge Dendrilla membranosa produces diterpenes, of which membranolide A, deters feeding of the predatory amphipod Gondogenia antarctica. A metabolomic study of several sponges was undertaken to determine environmental factors that govern …

Slope Settlement And Post-Disaster Health Needs Of Urban Displacement In La Paz, Bolivia, James Steven Arango

USF Tampa Graduate Theses and Dissertations

In 2011, a landslide displaced approximately six thousand people from the urbanized mountain slopes of La Paz, Bolivia. The municipal government of La Paz (GAMLP) managed the displacement by housing thousands of people in displacement camps throughout the city. By 2013, residents were attempting to return to still damaged lands. This research used participant observation and interviews with residents over eight weeks in 2013 to address the following questions: 1) What social, cultural, economic or historic factors influence the settling and then resettling of at-risk slope neighborhoods in La Paz, Bolivia? 2) What are the most pressing health needs of …

The Impact Of The Veterans Health Administration's Home Based Primary Care On Health Services Use, Expenditures, And Mortality, Melissa Castora-Binkley

USF Tampa Graduate Theses and Dissertations

Background: Among patients with multiple chronic conditions, care coordination and integration remains one of the major challenges facing the U.S. health care system. A home-based, patient-centered primary care program has been offered through the Veterans Health Administration (VHA) since the 1970s for frail veterans who have difficulty accessing VHA clinics. The VHA Home Based Primary Care (VHA HBPC) aims to integrate primary care, rehabilitation, disease management, palliative care, and coordination of care for frail individuals with complex, chronic diseases within their homes. Early research suggested that VHA HBPC was associated with positive outcomes (e.g., reduced resource use and patient satisfaction). …

Multi-Isotope Analysis To Reconstruct Dietary And Migration Patterns Of An Avar Population From Sajópetri, Hungary, Ad 568-895, Liotta Desiree Noche-Dowdy

USF Tampa Graduate Theses and Dissertations

The Avar were nomadic people from Central Asia who migrated into the Carpathian Basin in Central-Eastern Europe during the mid to late Migration Period (AD 568 - 895). Archaeological evaluation of grave goods and documentation of mortuary practices have been the primary means of understanding the Avar. However, this approach has largely neglected skeletal and biochemical analysis, in particular as these approaches relate to the biological variation, ancestry, and dietary patterns of the Avar.

There remains debate as to whether disparities existed among the socially stratified Avar population of ancient Hungary. It is argued by some that these disparities existed …

Trash Talk: Understanding Food Waste At A Charter Elementary School In Florida, Steven A. Williams

USF Tampa Graduate Theses and Dissertations

Waste as a topic for anthropological investigation has enjoyed a recent resurgence in interest, mirroring burgeoning discussion among policy-makers and the general public about questions of environmental impacts, economic costs, and social detriments of contemporary waste management paradigms. While waste management in the United States has largely focused on technical and organizational solutions typically considered the domain of environmental planning and engineering (such as source reduction, recycling, and reuse), anthropology and the social sciences have become more prominently involved in efforts to inform policy-makers and researchers about the social and behavioral factors influencing waste norms and habits, particularly in educational …

An Analysis Of Technology Applications In The Restaurant Industry, Muhittin Cavusoglu

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to examine the utilization of Front of House and Back of House technology applications by U.S. restaurants across different types of restaurants along with their level of IT management style, and the importance of these technology applications to the restaurants' operations. This study used secondary data. The survey data collected from 500 randomly selected restaurant technology managers who are current subscribers of Hospitality Technology Magazine as of January 2013. Response rate was 27.2% and these sample groups represented 67,299 restaurant units. The data analysis was organized into 3 parts (descriptive, factor analysis and independent …

Food Insecurity And Hunger Experiences And Their Impact On Food Pantry Clients In The Tampa Bay, Nora Brickhouse Arriola

USF Tampa Graduate Theses and Dissertations

Since 1999, there has been a significant increase in the number of food insecure individuals in the United States. The Great Recession (2007-2009) and slow economic recovery has led to additional increases in rates of food insecurity and the usage of emergency food assistance programs. Thirty qualitative interviews with individuals seeking emergency food assistance at a Tampa Bay food pantry were conducted. Interviews focused on collecting the life experiences of participants, the barriers they face in having food security, their strategies to cope with limited food budgets, and how food insecurity impacts their household's overall health and wellbeing. Recommendations for …

Using Token Reinforcement To Increase Walking For Adults With Intellectual Disabilities, Haley Nicole Krentz

USF Tampa Graduate Theses and Dissertations

Adults with intellectual disabilities (ID) are at risk for negative health conditions due to high levels of sedentary behavior. Walking and cycling are the most common forms of physical activity engaged in by adults with ID. Research is limited in evaluating physical activity interventions for this population. The purpose of this study will be to evaluate the effectiveness of a token reinforcement intervention to increase distance walked for adults with mild to moderate ID at adult day training centers.

Parental Deportation And Cape Verdean Youth Experiences: A Case Study, Leila Rosa

USF Tampa Graduate Theses and Dissertations

The consistent academic underperformance of students from diverse backgrounds is a national concern and the subject of study by numerous researchers. Some scholars suggest this underperformance indicates teacher lack of preparation to address the needs of a highly diverse student population (Hollins & Guzman, 2005; Ford, 2008; Darling-Hamond, 2004). Central to the overall efforts for improving achievement outcomes should be a focus on the educational experiences of the segment of population that is underperforming, namely students of color, from diverse cultural and linguistic background. Policies of immigration are particularly relevant for the students who are immigrants to the United States …

5-Aminolevulinate Synthase: Characterization Of The Enzymatic Mechanism, Reaction Selectivity, And Structural Plasticity, Bosko M. Stojanovski

USF Tampa Graduate Theses and Dissertations

5-Aminolevulinate synthase (ALAS) catalyzes the pyridoxal 5'-phosphate (PLP)-dependent condensation between glycine and succinyl-CoA to generate coenzyme A (CoA), CO₂, and 5-aminolevulinate (ALA). The chemical mechanism of this reaction, which represents the first and regulated step of heme biosynthesis in mammals, involves the formation of a short-lived glycine quinonoid intermediate and an unstable 2-amino-3-ketoadipate intermediate. Using liquid chromatography coupled with tandem mass spectrometry to analyze the products from the reaction of murine erythroid ALAS (mALAS2) with O-methylglycine and succinyl-CoA, we directly identified the chemical nature of the inherently unstable 2-amino-3-ketoadipate intermediate, which predicates the glycine quinonoid species as …

Patient Populations, Clinical Associations, And System Efficiency In Healthcare Delivery System, Yazhuo Liu

USF Tampa Graduate Theses and Dissertations

The efforts to improve health care delivery usually involve studies and analysis of patient populations and healthcare systems. In this dissertation, I present the research conducted in the following areas: identifying patient groups, improving treatments for specific conditions by using statistical as well as data mining techniques, and developing new operation research models to increase system efficiency from the health institutes’ perspective. The results provide better understanding of high risk patient groups, more accuracy in detecting disease’ correlations and practical scheduling tools that consider uncertain operation durations and real-life constraints.