Digital Commons Network^™

Does Marriage, Employment And Having Children Matter? A Secondary Analysis On Physical Activity Levels, Leisure Time Physical Activity, And Social Roles Among Women In The United States, Tramaine Paul Mcmullen

Theses and Dissertations

Background: Social roles, such as being married, employed, or having children, have been shown to have independent negative relationships with moderate to vigorous physical activity (MVPA) levels among women. Increasing the number of women with children that meets physical activity guidelines is critical to reduce chronic disease and early mortality in this population. However, few studies have examined the relationship between holding multiple social roles, MVPA, and leisure-time physical activity (LTPA) among women with children. The study had two aims: 1) to determine the relationship between objectively measured MVPA by social roles and 2) to examine the frequency of specific …

Analysis Of The Facilitative Interaction Between Batis Maritima And Avicennia Germinans As A Mangrove Restoration Strategy, Javier R. Navarro

Theses and Dissertations

The multiple experiments conducted in an Avicennia germinans forest in Laguna Vista, TX was focused on determining if facilitation theory could explain the behavior observed between the herbaceous halophyte Batis maritima and A. germinans. I hypnotized that a positive interaction exists but through which mechanisms of facilitation I did not know. The overarching theme of the study is the presence or absence of B. maritima. Facilitation theory tells us that positive interactions are most often found under stressful conditions such as those on the coastal tidal flat of the Laguna Madre. Locally B. maritima has been found to …

Determinants Of Nutrition Agenda Setting In The Context Of The Double Burden Of Malnutrition In Tamil Nadu, India, Shilpa Vimalananda Constantinides

Theses and Dissertations

The double burden of malnutrition is increasing in low- and middleincome countries, with economic, social, and health consequences. Policies and programs to address malnutrition at the national and subnational levels reflect the priorities and framing of the problem by the stakeholder community. Previous studies have examined if and how nutrition-related NCDs have been included into national nutrition policy agendas that have historically focused on reduction of undernutrition, but little is known about if or how this process occurs at the subnational level where policies are translated and implemented according to local contexts, priorities, and frames of nutrition-related NCDs.

We aimed …

Mechanistic Insight On Vibrio Gazogenes Mediated Intervention Of Aflatoxin Biosynthesis In Aspergillus Flavus, Rubaiya Jesmin

Theses and Dissertations

Aflatoxin is a liver carcinogen, mycotoxin, and a secondary metabolite that is produced by some plant pathogens within the genus Aspergillus when they infect crops such as corn, peanuts, and cotton. Given the significant adverse health and economic impacts of aflatoxin and a predicted rise of crop contamination with mycotoxins caused by a changing climate, there is a pressing need for exploring new aflatoxin mitigation methods. Previous studies in our laboratory have shown that metabolites from Vibrio gazogenes, an estuarine non-pathogenic bacterium, can inhibit aflatoxin synthesis. However, a direct interaction study between V. gazogenes and aflatoxin producing strains has …

17 Β-Estradiol And Phytoestrogens Attenuate Apoptotic Cell Death In Hiv-1 Tat Exposed Primary Cortical Cultures, Sheila Marie Adams

Theses and Dissertations

Despite the advent of highly active antiretroviral therapy (HAART), neurological disorders develop in most people infected with human immunodeficiency virus type 1 (HIV-1). The poor CNS delivery of anti-retrovirals allows continued virus production and renders neurons susceptible to the toxic effects of released viral proteins. The neurotoxic potential of HIV-1 viral protein Tat has been shown to include excitotoxicity, oxidative stress, and mitochondrial dysfunction leading to subsequent cell death. Thus, Tat is thought to have a key role in the pathogenesis of HIV-associated neurodegeneration. Estrogens are universally considered to be neuroprotective, as such; estrogens have positive implications in the treatment …

Correlates Of Maternal Health Service Use And Women’S Experiences Using Antenatal Care In Ghana: A Mixed-Methods Study, Anna Cofie

Theses and Dissertations

The pace of improvements in maternal mortality has been slow in Ghana. While Ghana’s maternal mortality ratio (MMR) decreased from 635 per 100,000 live births to 319 per 100,000 live births between 1990 and 2015, the country failed to meet the 75% reduction target set by Millennium Development Goal (MDG) goal 5A, to reduce maternal mortality ratio by 75% between 1990 and 2015. Antenatal care (ANC) is critical to improving maternal morbidity and mortality and child deaths. In 2003, Ghana introduced the National Health Insurance Scheme to ensure that all pregnant women have access to free maternal care, and in …

Association Between Urinary Enterolignans As A Marker For Gut Microbiome Diversity And Depression In Nhanes, Marie Knoll

Theses and Dissertations

Depression is a chronic disease which inflicts functional and emotional impairment that has been a growing issue in the United States (US). Depression is the most prevalent mental disorder in the US and is the leading cause of disability in the world. By 2030, It is projected that major depressive disorder will be the second largest contributor to global burden of disease. Causes of depression are still largely unknown and treatments are often expensive, time consuming, and only available to certain populations. Treatment often requires a combination of medicines and therapy to be effective. In recent years, the gut microbiome …

Intracranial Atherosclerotic Stenosis And Its Association With Inflammation And Meditarrenean Diet, Tushar Trivedi

Theses and Dissertations

Intracranial Atherosclerotic Stenosis (ICAS) is associated with 8 to 10% of all strokes in the U.S. Although there is some evidence that in the Asian population inflammation plays a role in asymptomatic ICAS, it has not been shown in the U.S. population. Prior studies have shown associations between diet and regulation of inflammation. Mediterranean dietary pattern has been associated with lower levels of inflammation and cardiovascular disease (CVD). In light of the important role of inflammation in intermediate stroke risk factors including atherosclerotic disease, and potential role of diet in modulating inflammation, understanding individuals’ diets according to their inflammatory properties …

Bayesian Zero-Inflated Model For Ordinal Data, Huizhong Yang

Theses and Dissertations

Datasets with a relatively large number of zeros is commonly seen in medical applications. Although models like Zero-inflated Poisson (ZIP) model are proposed for counts data, there is still some issues with ordinal data which have excess zeros. In this paper, we developed a Bayesian approach to accommodate the excess zero in ordinal data. Intellectual disability (ID), also known as mental retardation (MR), is a disability characterized by below-average intelligence or mental ability and a lack of the learning necessary skills for daily life. A person with intellectual disability has intellectual functioning and adaptive behaviors limitations. Intellectual disability is a …

The Effects Of Organic Products On Conventional Products And Retailer Assortment Planning, Zhihao Zhang

Theses and Dissertations

The rapid growth in organic products has posed a major challenge to conventional retailer assortment planning. On the one hand, conventional retailers, driven by the relatively high margins of organic products, have increased organic product offerings. On the other hand, the shelf space for conventional retailers has remained the same, with newly opened stores much smaller in sizes. Therefore, retailers need to carefully manage their conventional product assortments to harvest the benefit of offering and increasing organic product assortments. In order to manage the assortment efficiently, conventional retailers need to understand how organic products would affect their existing products, consumers, …

Spatiotemporal Dynamics Of Benthic Microalgae In South Carolina Shelf Sediments, Sarah N. Zaunbrecher

Theses and Dissertations

Benthic microalgae (BMA) play essential roles in food webs and regulating nutrient exchange at the sediment-water interface in continental shelf ecosystems. However, shelf BMA are not widely studied due to the difficulties sampling the upper few millimeters of shelf sediments. A few published studies have highlighted the high spatiotemporal distribution of BMA, but detailed explanations for this known variability are limited. The objectives of this study were to quantify BMA biomass variability on scales of cm to km and relate these measurements to in situ nutrient concentrations, sediment grain size, in situ irradiance, depth, and other environmental factors. Water and …

The Singing Voice Specialist: An Essential Bridge Between Two Worlds, Rebecca Holbrook Loar

Theses and Dissertations

For more than 35 years, voice teachers have been seeking an educational platform to adequately prepare a Singing Voice Specialist. Several degree ideas have been proposed, none of which have been fully implemented, leaving the field of Singing Voice Specialty without a certifying body or way to achieve licensure or certification. This document seeks to uncover the current progress in the field of Singing Voice Specialty, the progression of educational programs geared toward Singing Voice Specialization, possible accrediting associations, and future education needed to propel this profession forward.

In seeking these answers, experts within various aspects of voice care are …

Examining The Organizational Capacity Of Public Libraries That Offer Obesity Prevention Programs, Olivia Whitt

Theses and Dissertations

Supplemental Nutrition Assistance Program Education (SNAP-Ed) is a federally funded grant program that helps SNAP-eligible populations make healthy choices, like those outlined by the Dietary Guidelines for Americans and the Physical Activity Guidelines for Americans. Together with implementation agencies (IAs) and local sites, SNAP-Ed provides direct nutrition education and facilitates policy, systems, and environmental strategies (PSEs) such as farmers markets and community gardens. This qualitative research investigated two specific aims: 1.) Understand the elements of organization capacity that influence a public library’s ability to implement obesity prevention programs and 2.) Evaluate the need for library staff public health knowledge …

Understanding The Influence Of Changing Climate On Mycotoxin Contamination Of Food And Indoor Fungi-Mediated Respiratory Illness, Mayomi Helen Omebeyinje

Theses and Dissertations

Over the years, climate change has been a major core issue in public and environmental health. The World Health Organization (WHO) estimated that about 250,000 additional death per year would be attributed to climate change between 2030 and 2050 if this situation persists. Since our population depends on (but not limited to) the availability of clean water, good air quality, and exposure to environmental hazards/pathogens, the overall health impact caused by climate change is likely to be overwhelming in the nearest future. This dissertation explored the influence of climate change on fungi diseases and pathogenesis after severe weather conditions (hurricanes …

Understanding The Role Of Political Commitment And Coherence Across Sectors And Across National And Sub-National Levels In Enabling Improvements In Nutrition In Rwanda, Elyse Iruhiriye

Theses and Dissertations

Reducing undernutrition is on the political agendas of many low- and middle-income countries. There is general consensus that to improve nutritional outcomes involves actions across the different sectors that influence both the immediate and underlying determinants of optimal nutrition and an enabling environment to support the political and policy processes. Despite renewed attention over the last 15 years, addressing nutrition in a multisectoral way was previously promoted in the 1970’s but failed to have sustained political commitment due to its organizational complexities to plan and implement strategies across sectors.

We conducted an in-depth retrospective case study to understand how Rwanda, …

Evaluating The Social Acceptability Of An Application-Blocking-Based Contingency Management Intervention, Caitlyn R. Upton

Theses and Dissertations

Many adults and youth in the United States engage in multiple high risk health behaviors. Research has historically suggested that if these behaviors can be changed, major health conditions could be changed at both the individual and population levels. Contingency Management is a well-validated method of changing health behaviors, however the costs associated with CM prevent it from being widely available. Smartphone applications are becoming increasingly popular in the healthcare sector, and most American have a smartphone with apps they find enjoyable and distracting. A potential avenue for CM dissemination is the development of a smartphone program that utilizes the …

Ems Mutagenesis In Quinoa: Developing A Genetic Resource, Brian James Cox

Theses and Dissertations

Chenopodium quinoa, a South American pseudocereal, has valuable agricultural traits such as salt tolerance and drought tolerance, and it has beneficial nutritional properties such as high protein content and a complete amino acid profile. However, problems including disease susceptibility, low harvest index, lodging, seed shattering, low heat tolerance, and saponin content plague quinoa. Genetic resources for quinoa are needed to fix these problems and make quinoa more available throughout the world. We used ethyl methanesulfonate (EMS) to create a mutant population of QQ74 quinoa (USDA GRIN PI 614886) of 5,030 mutant families. We did whole exome sequencing (WES) on 44 …

Landscape Performance Of Annual Bedding Plants Following Foliar Application Of Silicon And Titanium, Vania Maria Pereira

Theses and Dissertations

The U.S. floriculture industry was estimated at $4.77 billion in 2018 with annual bedding plants representing the main segment valued at $1.46 billion dollars. Silicon (Si) and titanium (Ti) are beneficial nutrients which can improve growth and quality of greenhouse horticultural crops when applied exogenously. Information is lacking as to whether Si and Ti enhancement during greenhouse production increases bedding plant performance in the outdoor landscape. Therefore, this study examined landscape performance of four annual bedding plant species treated with foliar applications of Si and Ti during greenhouse production over two growing seasons. Plant species were selected based on U.S. …

Cronobacter Sakazakii Genes Contributing To Persistencein Low-Moisture Dairy Matrices, Kaitlin Ash Hartmann

Theses and Dissertations

Cronobacter sakazakii is a gram-negative opportunistic pathogen known to survive in dry environments and food matrices, such as infant formula. This foodborne bacterium can cause fatal human infections of the blood, central nervous system, and gastrointestinal tract; it is also problematic in wounds and urinary tract infections. Preterm infants and immunocompromised individuals are in higher risk categories related to necrotizing enterocolitis, neonatal sepsis, and meningitis due to this organism. Therefore, there is a need for increased understanding of how this bacterium is able to persist in thermally treated low-moisture products that do not support growth. The objective of this research …

Do Shape And Volume Of Subcortical Neural Structures Involved In Reward Processing Correlate With Body Mass And Food Reward In Adolescent Females?, Kelsey K. Zaugg

Theses and Dissertations

Background: The prevalence of adolescent obesity has increased drastically in the last few decades, spurring research examining causes and consequences of this chronic health condition. Neuroimaging techniques are being used to determine possible neural correlates of obesity that could help inform research in this field. However, the research among adolescents is not as abundant and findings so far are contradictory. This study sought to examine the association of the shape and volume of subcortical brain structures involved in reward processing with weight status in adolescent females. Additionally, this study sought to determine if the shape and volume of these structures …

Isothermal Inactivation Of Salmonella, Listeria Monocytogenes, And Enterococcus Faecium Nrrl-B 2354 In Peanut Butter, Powder Infant Formula, And Wheat Flour, Adam Robert Quinn

Theses and Dissertations

Pathogens in low-moisture foods are an emerging food safety concern due to increased survival and thermotolerance in matrices with low water activity. However, limited data is publicly available for the thermotolerance of Listeria monocytogenes, Salmonella spp., and Enterococcus faecium NRRL B-2354 (a Salmonella surrogate). The aims of this study were to identify differences in thermal inactivation rates between these organisms in three different low-moisture foods. Three model low-moisture foods (peanut butter, powder infant formula, and wheat flour) were inoculated with either E. faecium, a Salmonella spp. cocktail, or a L. monocytogenes cocktail using a dry inoculation method for a total …

A Quest To Understand The Literacy Practices Of Homeless Children Who Are Living In Extended-Stay Motels, Suzanne Curry Thomason

Theses and Dissertations

This qualitative ethnographic study was conducted to explore the literacy practices of children who are homeless. Participants included six emergent readers from four families living in extended-stay motels. The participants were observed during interactive writing and shared reading lessons during a summer program hosted at a cooperating nonprofit agency. Three research questions were used to explain the phenomenon: 1) What literacy activities are a part of families who are homeless? 2) How does a child who is homeless respond to the structure and availability of a summer literacy program as a writer? 3) How will a homeless child’s attitudes towards …

Hulumtimi Rreth Llojeve Të Ambalazheve Dhe Roli I Tyre Në Industrinë Ushqimore, Xheneta Luma

Theses and Dissertations

Sot, ambalazhimi i ushqimit është pranuar si një strategji për rritjen e konkurrencës së produkteve ushqimore nga ekspertët. Ambalazhimi i ushqimit është mbyllja e ushqimit për ta mbrojtur atë nga dëmtimi, ndotja, prishja, dëmtuesit, gjatë transportit, magazinimit dhe shitjes me pakicë. Zhvillimi i materialeve të ambalazhimit tregon zhvillimin paralel me teknologjinë. Sidomos rritja e numrit të të punësuarve, veqanërisht rritja e punësimit të femërave gjithnjë e më shumë e rriti kërkesën për ushqim të gatshëm. Rritja e kërkesës për ushqim të përgatitur lehtësisht solli teknologjinë e re të ambalazhimit dhe funksionimi i ambalazhimit është rritur. Prodhimi i ambalazheve për konfeksionimin …

Green Production Of Metal Nanoparticles For Drug Delivery Applications, Nada Mostafa Aboeita

Theses and Dissertations

Marine algae are a rich source of biologically active compounds such as sulfated polysaccharides, lipids, proteins, carotenoids and polyphenols, that can be used in food, cosmetic, nutraceutical and pharmaceutical industries due to their antioxidant, anticancer, antibacterial, and anticoagulant activities. In the present study, ultrasound-assisted extraction was performed on the red algae Pterocladia capillacea. The extraction procedure was optimized to maximize yield and total carbohydrate content. The extract was shown to possess potent antioxidant activity and was successfully used as a reducing and capping agent in the green synthesis of copper nanoparticles. The synthesized copper nanoparticles were characterized by UV-spectroscopy, Fourier …

Elucidating The Role Of The High Aliphatic Glucosinolate ( Hag ) Genes In Pennycress ( Thlaspi Arvense L. ) Glucosinolate Production, Dalton Williams

Theses and Dissertations

Pennycress (Thlaspi arvense L.) is a Brassica species being developed into an oilseed-producing winter cash cover crop. Similar to its relatives, rapeseed (Brassica napus L.) and camelina (Camelina sativa L.), pennycress seeds produce high levels of oil and protein (~34% oil and ~19% protein dry weight). For pennycress to be economically viable and environmentally sustainable as a crop, both the oil and seed meal must be utilized. Pennycress like other Brassicaceae, produces high levels of glucosinolates in the seed coat. Glucosinolates taste bitter and can be metabolized by the enzyme, myrosinase, into toxic isothiocyanates, nitriles, and epithionitriles. Seed meal containing …

Homeless In Little Rock: An Exploration Of Best Practices For Solving Homelessness, Leonardo Victor Moya

Theses and Dissertations

This Best Practice Manual attempts to provide answers to the question: How can government and communities learn from one-another in creating a plan that would make homelessness for the (at risk) homeless population a thing of the past?

Nitrate Transport In The Unsaturated Zone, Patience Bosompemaa

Theses and Dissertations

Abundance of nitrate in the soil is a basic issue in agricultural land-use regions, causing eutrophication and pollution of water bodies. The study focuses on the role of a saturated buffer zone (SBZ) to remove nitrate from the groundwater resulting from agricultural activities. The study area is herbaceous SBZ located in central Illinois (40.614382ºN, -89.023542ºW), which lies between a stream and a farm located upgradient. The SBZ has been outfitted with an agricultural runoff treatment system that diverts tile drainage into the subsurface of the SBZ rather than discharging into the stream. Within the SBZ three experimental areas composed of …

The Effect Of Hurricane Sandy On Mental Health Outcomes Of New Yorkers, Kacper Perkowski

Theses and Dissertations

This study’s objective is to evaluate the effect of Hurricane Sandy on the long-term mental health of New Yorkers. Health data spanning from 2010-2014 was obtained through the Community Health Survey. Difference-in-differences regressions were employed to evaluate the relationship. The results show Hurricane Sandy had no statistically significant effect on any key mental health variables.

The Collaborative Urban Resilience Banquet, Or @The_C_U_R_B, Candace B. Thompson

Theses and Dissertations

The Collaborative Urban Resilience Banquet (The C.U.R.B.) is an interdisciplinary art project consisting of citizen science experiments, community events, and social media storytelling that collectively examine critical issues of environmental, social, and food-based justice as we face oncoming climate crisis. The project explores lessons learned about/with/from Brooklyn's feral edible plant and animal species, many of whom have long and complicated relationships with humanity. Artist Candace Thompson of The C.U.R.B. forages and processes these beings into food and medicine, and conducts DIY remediation experiments with them in an attempt to mitigate any contamination found therein. She shares her fndings via an …

Biomaterials For Bone Regeneration: Tunable Structural And Mechanical Characteristics, Anwer Mhanawee

Theses and Dissertations

Tissue engineering is a promising alternative treatment for damaged tissues. In bone regeneration, bone graft replacements can be made from different biomaterials (basically ceramic and polymer) and used for different treatment purposes. In the first section of this dissertation, the Compression test results showed that its modulus of elasticity depends on its porosity. Also, we developed a testing method to measure the swelling force of the material during expansion due to liquid absorption. The maximum swelling force was found to be proportional to the material modulus. In the second part, we successfully design, fabricate and characterize a novel expandable bone …