Digital Commons Network^™

Single Joint Posterior Chain Isometric Testing Using Force Plates: A Systematic Review Of The Methodologies And Reliability Of Testing Methods, Jack T. Fahey, Christopher Bramah, Richie Barber, James Williams, John J. Mcmahon, Paul Comfort, Nicholas J. Ripley

Research outputs 2022 to 2026

The posterior chain muscles (i.e. hamstring and gluteal) play an important role in performance and injury prevention. Posterior chain muscle injuries lead to time lost from training, competition and increased reinjury risk. Force plates enable valid and reliable assessment, current methods assessing isometric posterior chain (IPC) force production using force plates have yet to be reviewed. This review was designed to systematically review methods of single joint IPC force plate testing; establish existing reliability; and summarise descriptive data. A literature search was conducted using the following search terms: ‘force plat*’ AND ‘isometric’ AND (‘hamstring*’ OR ‘knee flex*’ OR ‘posterior chain’ …

Two Strategies To Improve Stability In A Precision-Based Task: Insights From The Badminton Short Serve, Yochi Iino, Jodie Cochrane Wilkie, Senshi Fukashiro, Shinsuke Yoshioka, Shayne Vial

Research outputs 2022 to 2026

The badminton short serve is a highly precise task requiring accurate control of racquet face orientation, which directly influences shuttlecock trajectory and limits an opponent's ability to attack. Previous studies on motor redundancy have emphasized covariation among elemental variables as the primary mechanism for stabilizing performance. However, when the sensitivities of elemental variables differ, performance can also be stabilized by unevenly distributing individual variances without altering correlation — an approach that has received limited attention. This study investigated whether elite players use both the correlation strategy and the uneven variance strategy to stabilize racquet face angles during the short serve. …

Leveraging Consumer Socialisation Agents To Increase Indigenous Student Participation In Higher Education, Melissa Fong-Emmerson, Braden Hill, Claire Lambert, Maria M. Ryan, Rebekah Dougan

Research outputs 2022 to 2026

Purpose – Socialisation agents, including family, peers, Elders, teachers, mass media and community networks, significantly influence students’ decisions to pursue higher education (HE). This paper aims to further explore how these agents, within the framework of consumer socialisation theory, act as influential forces at the early stages of the decision-making process, shaping perceptions and providing motivation for Indigenous students’ educational choices. Design/methodology/approach – A three-phase narrative inquiry method was used, including autobiographical accounts from students, yarning sessions with peers and one-on-one interviews. This participatory approach centred Indigenous knowledges to inform culturally responsive social marketing strategies. Findings – The study identified …

Measuring Cancer Equity Globally: Harmonising International Rural-Urban Classifications For Exploring Cancer Outcomes, Charlene Wright, Sharina Riva, Megan Crichton, Helena Rodi, Hannah Jongebloed, Lucy Leigh, Elizabeth A. Johnston, Rebecca J. Bergin, Anna Chapman, Laura Alston, Fiona Crawford–Williams, Nicolas H. Hart, Joel Rhee, Lan Gao, Kate Gunn, Harry Gasper, Anna Ugalde, Skye Marshall

Research outputs 2022 to 2026

Geographic disparities in cancer outcomes represent a critical health equity challenge, with rural populations consistently experiencing poorer outcomes than urban populations. The lack of harmonised rurality measures creates substantial barriers to evidence synthesis and has precluded meta-analyses. This perspectives paper discusses concepts of rurality, identifies rurality classification systems used by cancer researchers in OECD countries that can be harmonised with the OECD Extended Typology, and develops recommendations for consistent rural-urban coding. Targeted searches of grey and published literature on cancer policy and rurality classification systems were conducted. The secondary analysis examined studies identified through systematic database searching of OVID Medline, …

A Community Affair: An Exploration Of The Queer Community, Nightlife, Performance Art And Their Adjacent Qualities, Tatiana M. Castro

College of Graduate Studies: Theses & Dissertations

This thesis explores the importance and roll of community in queer artwork, such as drag and burlesque and retroactively also all the work that I create. This paper aims to express this importance by exploring my personal relationship with building community. By interviewing performers selected through a customized-for-savannah voting process, I allowed the community to directly influence my thesis, as well as directly referencing photos of the hands of community members as a continued motif used throughout my work to represent community. This culminated in a two night thesis performance and installation  exhibition that explored performance and how its environment …

Food Access Disparities In Fulton County, Georgia: Examining Structural Barriers And Community-Level Determinants, Paige J. Perry

College of Graduate Studies: Theses & Dissertations

Food insecurity remains a significant public health issue affecting communities at global, national, and local levels, including Atlanta, GA. Despite being an affluent and rapidly growing urban area, disparities in food access persist across Fulton County. This study examines the structural, demographic, and socioeconomic factors associated with food access at the census tract level. Using quantitative analysis, the study evaluates how geographic location, population characteristics, transportation access, and economic conditions influence the likelihood of low food access. Findings highlight significant disparities linked to transportation availability, demographic composition, and geographic variation within the county. These results underscore the importance of addressing …

Sexual Dimorphism In The Immune Defense Mechanisms Against A Systemic Bacterial Infection In The Cat Flea (Ctenocephalides Felis), Ashley Lynch

College of Graduate Studies: Theses & Dissertations

Fleas defend against infection through the activation of both humoral and cellular innate immune responses. Previous research in female cat fleas demonstrated increased immune activity following a systemic bacterial infection. However, comparable data for males and sex-based comparisons are limited. In this study, we investigated differences in innate cellular immune responses between male and female cat fleas following systemic infection with Gram-negative Escherichia coli. Bacterial load was quantified using colony-forming units 24 h post-infection. Immune function was assessed via phagocytic index and capacity. Survival and total circulating hemocyte counts were evaluated across infected, sterile-injected, and untreated groups. Male fleas …

Effect Of Wall Movement On Porosity Formation In Ductile Iron Castings Under Varying Processing Parameters, Shamsul Alam

College of Graduate Studies: Theses & Dissertations

Shrinkage porosity is a major defect that significantly impairs the mechanical properties and overall performance of ductile iron castings. Although graphite formation during solidification induces volumetric expansion, this expansion alone is insufficient to fully compensate for the shrinkage occurring throughout solidification. During the solidification and cooling of ductile iron, multiple phase transformations occur, resulting in dynamic volume changes that exert pressure on mold walls and internal cavities. These pressures can deform mold walls and casting surfaces, leading to defects such as swell and porosity, while also influencing shrinkage formation. This study aims to analyze the mechanisms of porosity formation and …

Spieltrieb, Edward F. Newcomb

College of Graduate Studies: Theses & Dissertations

This thesis investigates the creative and pedagogical intersections of nostalgia, play, and neurodivergent experience through a mixed-media studio practice. Grounded in Friedrich Schiller’s concept of Spieltrieb—the human drive to play as a balance between sensual and rational impulses—this work explores how childhood memory, instinct, and impulsive mark making inform both artistic production and art education.

Drawing on theoretical frameworks by Susan Sontag and John Berger, the work resists overinterpretation in favor of sensory immediacy, inviting viewers into direct, embodied encounters with material form. Sontag’s critique of mimetic representation and Berger’s analysis of reproducibility and context inform a practice that …

Identification Of A Rural Black Community-Based Mental Health Intervention Via Cbpr, Kirsten Mengell

College of Graduate Studies: Theses & Dissertations

Poor mental health in the US has increased since 2011 (Mental Health America, 2022). Rural communities face disparities in mental health shortages (Andrilla et al., 2018). African Americans face additional barriers, including a historical underutilization of mental health and high mental health stigma. This is significant given the higher rates of mental distress and discrimination among rural African Americans compared to Whites (James et al., 2017), and a recent increase in suicide among Black Americans (Stone et al., 2023). Illustrating a need for options within rural Black communities that can overcome professional shortages and cultural barriers to improve mental health …

Evaluating Source Material And Seed Propagation Techniques For Spartina Alterniflora To Enhance Salt Marsh Restoration In Coastal Georgia, Maygan Palacios

College of Graduate Studies: Theses & Dissertations

Salt marshes provide critical ecosystem services, including carbon sequestration, flood attenuation, and habitat for diverse aquatic and terrestrial species. Despite their ecological importance, these habitats are increasingly threatened by anthropogenic activities and rising sea levels. To protect and restore salt marshes and their ecosystem services, restoration efforts using living shorelines (LS) have become more common. Along the Eastern and Gulf coasts of the United States, the native grass Spartina alterniflora is commonly used in LS installations for its key role in salt marsh food webs, resilience to abiotic stress, and ability to stabilize and build sediment. Previous studies have documented …

The Monster Consuming American Education: An Ethnodramatic Exploration Of Standardized Testing And Student Stress, Jennifer Bagley

College of Graduate Studies: Theses & Dissertations

This study looks at how elementary students experience Standardized Testing, focusing on the emotional and physical effects of the Georgia Milestones Assessment System (GMAS). Most research on high-stakes testing focuses on scores, accountability, and policy, but fewer studies look at how students actually describe these experiences. Grounded in Cultural Studies and informed by Critical Pedagogy, this study examines how students interpret and make meaning of their testing experiences within the broader culture of accountability and standardized assessment. This study focuses on student voices to better understand what testing feels like for them and how they make sense of it in …

Sociodemographic Differences In Sepsis-Related Medicare Hospitalizations: A State-Level Analysis Of Diagnosis-Related Groups For Severe Sepsis In 2019 And 2022, Alba Kuqi

College of Graduate Studies: Theses & Dissertations

Introduction: This state-level ecological repeated cross-sectional study examined sociodemographic differences in sepsis-related Medicare hospitalizations assigned to Medicare Severity Diagnosis-Related Groups (MS-DRGs) 871 and 872 in 2019 and 2022.

Objective: The study focused on three outcomes: changes in sepsis-related Medicare discharge volume, changes in average Medicare payment per sepsis discharge, and changes in the proportion of MS-DRG 871 discharges relative to MS-DRG 872 discharges.

Methods: Publicly available Medicare inpatient hospital data and state-level demographic data were used to evaluate whether age, race, gender composition, and median household income were associated with these changes across the 50 U.S. states and …

Cytonuclear Incompatibilities In Hybrid Systems: Oxidative Phosphorylation Capacity And Nuclear Marker Transmission Ratio Distortion In Hybrids Of An Introgressed Strain Of Parasitoid Wasp, Julie Kessler

College of Graduate Studies: Theses & Dissertations

Speciation is an evolutionary process resulting in the divergence of populations into reproductively isolated species, a key concept that supplies our planet with an abundance of biodiversity. Mechanisms for speciation center on obstacles to fertilization and include post-zygotic barriers, such as intrinsic deleterious interactions, that arise in hybrid systems where genetic variants are combined. Genes from separate parent lineages are often incompatible due to the co-evolution of paired genes within a singular species not matching their complement genes in another species, and the result is a reduction in fitness of the hybrid when these genes come together. The mitochondrial OXPHOS …

Vibrio In Oysters: Exploring The Impact Of Harvesting Practices, Samin Yasar

College of Graduate Studies: Theses & Dissertations

The rapid growth of oyster aquaculture in the Southeastern United States necessitates the validation of post-harvest processing strategies to mitigate the risk of Vibrio spp. infection. This study investigated the efficiency of three cooling methods - Direct Ice Burial, Indirect Ice Cooling, and Ambient Control, on the prevalence and abundance of V. cholerae, V. parahaemolyticus, and V. vulnificus in cultured oysters (Crassostrea virginica) harvested in Georgia. Additionally, the study examined the safety of two different re-submersion periods for oyster safety.

Internal temperature profiles confirmed that while Direct Ice Burial achieved the most rapid cooling (< 10° C in 7.3 ± 1.2 min), the Indirect Ice Cooling protocol successfully reached the safety threshold in 73.7 ± 17.2 min, well within the 2-hour regulatory window. Microbiological analysis (N = 270) revealed that V. …