Digital Commons Network^™

Measuring The Success Of A Coastal Sand Dune Restoration On Tybee Island: Plant Growth, Sand Accretion, And Implications For Management, Shannon Matzke

College of Graduate Studies: Theses & Dissertations

Coastal communities are developing rapidly in the face of increased risks of sea level rise and hurricanes stemming from anthropogenic climate change. In the US, erosion is projected to cost $530 million/year in property loss, but beaches and dune systems can minimize these losses. Dunes are vital to coastal protection, particularly when they are colonized by native plant species that stabilize sand with their root systems and accumulate sand by trapping particles with their stems and leaves. Dune construction can be used as a nature-based solution to climate change, but more studies are needed to fully understand the best practices …

The Effects Of Habitat Fragmentation On Avian Mobbing Behavior, Jada T. Daniels

College of Graduate Studies: Theses & Dissertations

Habitat fragmentation has negative effects on bird species diversity, as well as reproductive success of some species. However, there is little comparative information on the effect it may have on bird behavior. For example, small forest fragments are likely to have fewer bird species and individuals. This may limit the success of mobbing as an antipredator behavior because mobbing success depends on recruiting other birds to the group. This possibility has never been tested. The objective of my study is to quantify the effects of forest size on mobbing behavior in forest-dwelling birds. Mobbing behavior was elicited in 100 randomly …

The Rise In Use Of Emotional Support Animals By College Students: The Impact Of Parenting Styles, Misty G. Smith, Samantha Ballard, Jill Willis

Journal of Higher Education & Student Affairs

As the generational context of higher education shifts, a rise of Emotional Support Animals (ESA) and mental health concerns are present for students on college campuses. While previous studies have aimed to address the relevancy and controversy of ESAs in higher education as well as their effectiveness in supporting individuals, less research has explored underlying factors that contribute to the use of an ESA. The purpose of this study was to explore the parenting behaviors of parents/caregivers of students with ESAs in comparison to parents/caregivers of students without ESAs. An embedded mixed methods design was used. Participants completed the Parenting …

Zika Virus Concern And Preventative Behaviors During Pregnancy: Analysis Of 2017 Georgia Pregnancy Risk Assessment Monitoring System Data, Priya R. Nair, Christine E. Stauber

Journal of the Georgia Public Health Association

Background: Zika virus infection can cause severe health complications in pregnant women such as microcephaly and other congenital anomalies in the developing fetus but it can be prevented. It is imperative to develop an understanding of concern about Zika virus among pregnant women as this can influence their Zika virus preventative behaviors.

The purpose of this study was to gain an understanding of Zika virus concern among women in Georgia with live births in 2017 and to examine the frequency of condom use among those who were sexually active during their most recent pregnancy.

Methods: This cross- sectional study used …

Spring 2021 Honors Graduates, Georgia Southern University, Honors College

Honors College: Graduate Brochures (2021-2022)

No abstract provided.

A New Explanation For Samuelson’S Dictum And The Stock Market: Novel Events And Knightian Uncertainty, Nicholas Mangee

Finance: Faculty Publications

Samuelson’s Dictum argues that aggregate stock markets do not convincingly reflect information on fundamentals, such as dividends or earnings, and are, thus, inefficient in setting prices. By contrast, firm-level stock prices share a much closer connection with fundamentals and are, therefore, deemed relatively efficient. This paper presents an alternative explanation: Knightian uncertainty stemming from historically unique events produces differential impacts on investor forecasting bounds at the aggregate versus firm level. Several uncertainty proxies are employed from millions of unscheduled events identified in the universe of Dow Jones & Co. financial news reports over the last twenty years. Uncertainty based on …

The Role Of Symbiotic Algae In The Acclimatization Of Oculina Arbuscula To Ocean Acidification, Erin M. Arneson

College of Graduate Studies: Theses & Dissertations

Ocean acidification (OA) caused by CO₂ emissions is projected to decrease seawater pH to 7.6 by 2100. Scleractinian corals are at risk because excess H⁺ in seawater binds to carbonate (CO₃^2-), reducing its availability for CaCO₃ skeletons. The energy demand for skeletal growth increases as pH decreases because corals must actively purge excess H⁺ from their seawater sourced calcifying fluid to maintain high calcification rates. In scleractinian corals it is hypothesized that photosynthesis by symbiotic algae is critical to meet this increased energy demand. To test this hypothesis, I conducted laboratory and field …

Sexual Dimorphism Of Thermal Preference In Florida Scrub Lizards (Sceloporus Woodi) And Predicting Response To Climate Change In Two Rare Habitats, Sidney E. Anderson

College of Graduate Studies: Theses & Dissertations

The Florida Scrub Lizard (Sceloporus woodi) is endemic to Florida, where it inhabits fragments of xeric sandhill uplands including endangered long-leaf pine and sand pine scrub habitats. Lizards depend on a predictable range of temperatures to maximize their growth and productivity, and to do so, they shuttle among various thermal micro-environments. Thus, the spatial distribution of temperatures in the habitat is important. Habitats dominated by either high or low extremes of an organism’s preference are energetically costly and dangerous (less optimal), especially to gravid females. This study examines thermal preference of a near-threatened species that also inhabits increasingly rare habitats. …

Lipid Metabolites As Energy Stores In Four Stingray Species, Lauren Moniz

College of Graduate Studies: Theses & Dissertations

Assessing macronutrient transfer is important for estimating ecosystem health and structure. This nutrient transfer is facilitated through trophic position interactions and the consumption of biomass. Lipids are macronutrients that can be used to assess energy flow. Triglyceride (TAG) and free fatty acids (FFA) are important lipids that are obtained from diet and integrate into tissues. They are representative of energy stores and potential energy available for metabolic processes. In marine ecosystems, stingrays occupy the mesopredator niche, facilitating nutrient transfer from lower to higher trophic positions. Stingrays consume a variety of prey items ranging in lipid content, but how lipid metabolites …

United States Nursing Homes And Health Equity During The Covid-19 Pandemic, Carla Cooper

College of Graduate Studies: Theses & Dissertations

Objective: The COVID-19 pandemic disproportionately affected older populations, with nursing homes impacted early on by the disease. The contribution of race/ethnicity of nursing home residents and facility characteristics on COVID-19 were unknown. The Donabedian model framework was used to study the relationship between the racial/ethnic characteristics of nursing home residents and COVID-19 outcomes and to examine if this relationship was moderated by the racial/ethnic composition of the county of nursing home location.

Method: Cross-sectional research design merging data from five publicly available sources. Laboratory confirmed COVID-19 cases and deaths were compared by the racial composition of the county and nursing …

Advance (Spring 2021), Georgia Southern Division Of Continuing And Professional Education

Division of Continuing & Professional Education

No abstract provided.

Surface, Depth And The Ephemeral Experience, Naghmeh Hachempour

College of Graduate Studies: Theses & Dissertations

Music has long been an important medium for fulfilling and expressing emotional needs. In fact, music can become a powerful tool to create emotional responses in humans, such as happiness, sadness, awareness, as we see in recent decades in cinema, social media and advertisement. Today, a combination of different media is used to arouse our emotion and feeling, but often music has been used to accompany a visual realization, rather than vice versa. In my work I explore new modes of communication between people and sound by transfiguring music notation to a visual graphic. The scope and scale of my …

The Significance Of The Automobile In 20th C. American Short Fiction, Megan M. Flanery

College of Graduate Studies: Theses & Dissertations

Midcentury American life featured a post-war economy that established a middle class in which disposable income and time for leisure were commonplace. In this socio-economic environment, consumerism flourished, ushering in the Golden Age of the automobile: from 1950 to 1960, Americans spent more time in their automobiles than ever before, and, by the end of the decade, the number of cars on the road had more than doubled. While much critical attention has been given to the role of the automobile in American novels, less has been given to its role in American short stories. The automobile has been featured …

Ex-Tensions: Material Entanglement And Intensities, Zohreh Galdizadeh Garmeh

College of Graduate Studies: Theses & Dissertations

This thesis is an exploration of the intrinsic capacity of matter and material formations and utilization of art as a mode of inquiry. Ex-tensions: Material Entanglement and Intensities investigates the animism and vibrancy of objects and the hidden interplay between materials and intensities that flow through and around within the spaces that confine us. In this body of work, all forms of material configurations are understood as animated and agential and as different representations of the same substance that are only formally diverse.

Myelination: A Plastic Religion, Cody A. Thomas

College of Graduate Studies: Theses & Dissertations

Plastic products are convenient, abundant and our use of them has become routine. This acceptance of

plastics’ presence has become a dogma that most humans adhere to. The continual consumption of

these single-use plastics in our daily lives has unknowingly shaped our environmental consciousness,

behaviors, and justification for them. This belief in plastics function has been strategically developed by

companies that rely on our behaviors to distribute their products. Humans have become the faithful

consumers of these goods and this belief. The brain and its ability to remain plastic and develop

decision-making skills are known as Myelination. New experiences enhance …

Braving The Wilderness: The Quest For True Belonging And The Courage To Stand Alone – A Book Review, Chasity D. Tompkins

National Youth Advocacy & Resilience Journal

Brené Brown, PhD, LMSW, flipped the script on courage, vulnerability, shame, and empathy in personal and professional situations through her research, writing, and scholarship. Widely known for her TED talks on these topics, including The Power of Vulnerability over ten years ago in Houston, in 2017, Brown released “Braving the Wilderness: The Quest for True Belonging and the Courage to Stand Alone”, a self-help memoir, in the United States by Random House. In this review, I provide a highlight of each chapter in relation to its use for practitioners working in community-engaged programs with urban youth at-risk.

Athletics As A Life Curriculum: Lessons Learned Through Different Aspects Of Athletics, Thomas J. Davis

College of Graduate Studies: Theses & Dissertations

For my dissertation, I decided to write a memoir to have the opportunity to go through the self-reflection process and learn more about my inner self. I wanted to learn how the life experiences I write about have affected me as a student-athlete, coach, teacher, parent, and how they have shaped me into who I am today. I took instances from my life in athletics that I believe are significant in the development of my overall being. Educational scholars such as William Pinar (1995, 2004), John Dewey (1916/2019, 1933), Frederic Gros (2011), Immanuel Kant (1908/2015), Nel Noddings (2005), and Paulo …

Transcriptional Regulation Of Duox-Dependent Reactive Oxygen Species Production Against Bacterial Infection In The Gut Of Cat Fleas (Ctenocephalides Felis)., Ryne W. Maness

College of Graduate Studies: Theses & Dissertations

Fleas (Order Siphonaptera) are opportunistic blood feeders that parasitize a wide variety of mammals and birds. They also transmit bacterial pathogens that cause diseases in humans (e.g., murine typhus, flea-borne spotted fever, cat scratch disease, and plague). Because they acquire infectious pathogens while blood feeding, the flea gut is considered to be the initial site of infection. While immune responses have been well documented in other disease vectors, few studies have identified the immune mechanisms involved in defense of the flea gut. In other hematophagous insects, the synthesis of reactive oxygen species (ROS) is the immediate immune defense mechanism against …

Predation Threat In A Variable Landscape: Connecting Predation Risk To Nesting Success For The Seaside Sparrow (Ammospiza Maritima Macgilivraii), Corina D. Newsome

College of Graduate Studies: Theses & Dissertations

Predation, the leading cause of nest-failure in birds, not only exists as a direct threat to nesting success, but may exacerbate other sources of nest mortality. Birds inhabiting Atlantic coastal marshes, such as Seaside Sparrows (Ammospiza maritima; hereafter SESP), are experiencing significant and rapid changes to their habitat, particularly sea level rise (SLR) and encroaching urbanization, that may affect the relative influence of nest predation on overall productivity. For SESPs, SLR presents an inherent threat to nest success in its potential to increase the frequency of nest flooding. In addition to this direct threat, the ability of SESPs …

Present In Presence, Lyndsey A. Frantz

College of Graduate Studies: Theses & Dissertations

My ceramics are made to entice the viewer to live in their present moment by altering their perception and familiarity of utilitarian objects through means of natural processes found out in nature. I want the user to be fully engaged with thoughts about time, nature, and being present during their lives. Life in not just about daily responsibilities and sometimes we as humans can get so caught up in everything around us that we simply forget to enjoy everything we have worked hard to achieve. By experiencing something new, we can get out of our comfort zones and being present …

Design, Synthesis And Applications Of Nanoparticles In Suppression Of Mosquito-Born Flaviviridae Viruses, Maria R. Blahove

College of Graduate Studies: Theses & Dissertations

Recently, nanoparticles have become an origin of exploration in the chemistry field due to their unique medical uses. The current drug delivery models of nanoparticles often include a metal base with a drug conjugated to its surface. However this raises concerns regarding toxicity. A novel approach to solving this dilemma is the development of nanosized biocompatible polymer-based micelles, created from PEG-PCL-PEG triblock polymer, and formed around a drug of choice. The goal is to create a drug carrier nanoparticle system that is labile at a specific intracellular pH, without undue toxicity to the cell. This creates a drug-loaded nanoparticle that …

A Research Assistant's Perceived Skillset When Utilizing Deception, Ahmad Sarris

College of Graduate Studies: Theses & Dissertations

The use of deception in research has been a long-debated topic for several decades. Generally, research on deception has concerned its justifications, common methods, controversies, and uses inside and outside the broad field of psychology. Although the bulk of this research is typically concerned with exploring the potential drawbacks and controversies of deception on participants, the potential advantages and disadvantages to those implementing it has not been explored. More specifically, there are unanswered questions about what skills can be gained or perceived to be gained by research assistants utilizing deception. The present study explored whether deception utilization and/or the presence …

Cultures And Colonization In Tamora Pierce's Young Adult Novels, Jessica R. Dube

College of Graduate Studies: Theses & Dissertations

The content represented in young adult literature can be a shaping force for adolescents as they begin to understand more about themselves and the world around them. Fantasy fiction is especially powerful, as it allows readers to consider issues outside of their own experiences and learn through the characters of a fictional world. This thesis focuses specifically on the works of Tamora Pierce, and the ways in which she represents sociopolitical issues in her fictional world of Tortall. I analyze the ways in which Pierce’s works fulfill Landt’s standards of good multicultural literature, and how the representation she presents can …

Creating A Georgia Southern Spider Collection: Can Dna Barcoding Help?, Guy B. Hobbs

College of Graduate Studies: Theses & Dissertations

With over 280 spider (Araneae) species recorded within the State of Georgia, USA, the need for a well-documented natural history collection with a usable voucher system is critical to continually assess spider diversity and their future ecological impact in this region. Spider identification can be daunting for the inexperienced taxonomist; it is time consuming and sometimes requires destructive procedures. Previous works have successfully used an alternative method, DNA barcoding, to correctly identify spider species while preserving their morphology. This study set forth to create the core of a well-documented spider collection within Georgia Southern University’s Institute for Coastal Plain Science …

Using Zebrafish (Danio Rerio) To Evaluate The Use Of Food Waste Based Feed In Sustainable Small-Scale Aquaculture, Caitlin May

College of Graduate Studies: Theses & Dissertations

Food waste is rich in nutrients and a valuable resource, but currently its primary method of disposal in the United States (US) is unsustainable. In 2018 the US Environmental Protection Agency (EPA) estimated that the commercial, institutional, and residential sectors of the US economy wasted 63 million metric tons of food, most of which was sent to landfills. Instead, food waste could be recycled and used to supplement or replace commercial feed in aquaculture to sustainably stimulate production of fish. Zebrafish (Danio rerio) are a well characterized animal model closely related to other fish species that are important …

New Longitudinal Error Balancing Approaches For Closed Traverses, Jose L. Manzano

College of Graduate Studies: Theses & Dissertations

This study presents two novel approaches to balance the horizontal longitudinal error of closure, E_C, in closed polygonal traverses. The standard procedure to balance E_C is the Compass Rule. This technique reduces E_C to zero by applying corrections in the lengths of all traverse sides. Those corrections are proportional to the corresponding side lengths. That is, this approach is not an error-correcting approach, but an error-balancing procedure.

The proposed new techniques are based on sensitivity analysis of E_C with respect to small variations, Δ_i, in the lengths of all sides i = 1, …

Novel Quantification And Localization Of Water And Solute Transporters In The Tissues Of The Spiney Dogfish (Squalus Acanthias), Tolulope B. Ojo

College of Graduate Studies: Theses & Dissertations

The dogfish, Squalus acanthias is a marine cartilaginous elasmobranch found in the North Atlantic and Pacific oceans. Dogfish synthesize and excrete urea as a product of nitrogen metabolism. They also convert ammonia into urea and retain this urea, such that their plasma is isosmotic or slightly hyperosmotic to the surrounding seawater. To facilitate the regulation of body fluid and to maintain ionic concentrations and osmotic pressure, Dogfish use ion and solute transporters (e.g., NCC, UT-1) and aquaporin water channel proteins. Studies have identified some of the aquaporin genes in the elasmobranch genome, but their functions are mostly uncharacterized. Recent transcriptomic …

Advancements In Bio-Based Novel (Co)Monomers For Polymeric Materials, Khristal Anne Monroe

College of Graduate Studies: Theses & Dissertations

Most current research in the area of sustainable and environmentally friendly materials relate to the use of renewable sources for the fabrication of bio-based polymers and composites. Using plant-based derivatives is a common strategy. Pine sap can be distilled into turpentines (light fraction) and pine rosin (heavy fraction). Pine rosin is obtained as a brittle solid and its major component is abietic acid. This project aims at investigating a synthetic approach for the synthesis of a pine rosin-based polymer that can be potentially used for manufacturing a collection device for pine sap. The synthetic strategy consisted in the preparation of …

Free-Roaming Cat Abundance Across A Habitat Gradient, Rachel E. Bird

College of Graduate Studies: Theses & Dissertations

There are an estimated 172 million owned and feral cats in the United States, and wildlife enthusiasts and cat owners are often at odds over how best to manage free-roaming cats. Management is needed because of the documented impacts of free-ranging cats on wildlife. Targeting these management efforts, however, is hampered by an imperfect understanding of cat distribution in the landscape. My study used game cameras and capture-recapture sampling to estimate abundance of free-roaming cats across a habitat gradient in Bulloch County, Georgia, USA. In all, I detected cats at 51% (25/49) sites with a mean of 2.1 cats per …

Habitat Use Of Wintering Henslow's Sparrows (Centronyx Henslowii) In Power Line Right-Of-Ways, Abigail W. Dwire

College of Graduate Studies: Theses & Dissertations

Habitat loss and degradation are the leading causes of grassland bird declines worldwide. The Henslow’s Sparrow (Centronyx henslowii; hereafter HESP) is a grassland bird species of conservation concern that has historically relied on the herbaceous ground-layer of longleaf pine savannas and similar habitats in the southeastern U.S. for food and shelter in the winter. However, due to human development, alterations of habitat, and fire suppression, only fragments of these habitats remain. Over the last decade, surveys have annually documented HESPs using power line right-of-ways (hereafter, ROWs) at several sites in the coastal plain of Georgia as alternative habitat for …