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Validation Of Head Above And Head Submerged Hydrostatic Weighing Equations And Air Displacement Plethysmography, Axel M. Miller

All Graduate Reports and Creative Projects, Fall 2023 to Present

Traditional hydrostatic weighing (HW) involves full body submersion at residual volume (RV), which may be uncomfortable. Thus, the purpose of this study was to investigate a more comfortable way to perform this method. HW with the head above water (HW_HAW) was compared to the traditional method of HW with head below water (HW_HBW) and to another method that also measures density by displacement, air displacement plethysmography (ADP). Equivalence was tested by comparing the body fat percentage (BF%), body volume (Vb), and body density (Db) of 27 subjects (15 M, 12 F) between the three methods. Results …

Examining The Impact Of A Comprehensive School Physical Activity Program On High School Students' Health And Well-Being, Joshua Robinson

Doctorate in Kinesiology

This dissertation examined the impact of a Comprehensive School Physical Activity Program (CSPAP) on high school students’ perceived physical, mental, emotional, and academic wellness. Using a mixed-methods design, data were collected from 701 pre-surveys, 175 post-surveys, 603 post-intervention impact surveys, and two student focus group interviews. The yearlong CSPAP intervention was implemented using the CDC’s seven-step framework at a public charter high school during the 2024–2025 academic year. Quantitative results revealed statistically significant improvements in students’ self-reported physical health, mental wellness, emotional resilience, and academic engagement, with mental health and perceived enjoyment of physical activity showing the strongest gains. Perceived …

The Feasibility And Impact Of Self-Administered Neuromuscular Electrical Stimulation On Glycemic Control In Hyperglycemia Population- A Pilot Study, Zahra Fatahimeiabadi

Open Access Theses & Dissertations

Introduction: Neuromuscular electrical stimulation (NMES) has shown promise in improving glycemic outcomes in supervised, laboratory-based settings. However, its feasibility and effectiveness in real-world, community-based applications remain underexplored, particularly among sedentary, overweight/obese individuals at risk for type 2 diabetes (T2D). This study aims to assess the feasibility and effectiveness of self-administered NMES use on glycemic control and substrate utilization among sedentary, overweight/obese population with hyperglycemia. Methods: Ten participants (N=10 [Males:4; Females:6] Age: 38.9 ± 14.1 years; BMI: 36.0 ± 8.7 kg/m2) sedentary Overweight/obese participants with hyperglycemia were randomized to either an NMES or control group and were trained and instructed to …

Using Silvopasture To Mitigate Heat Stress In Grazing Beef Cattle, Sydney L. Lofland

Electronic Theses and Dissertations

This study evaluated the impact of silvopasture on mitigating heat stress in grazing beef cattle by comparing physiological and behavioral responses between shaded and non-shaded pastures. Twenty-two multiparous cows were monitored over a 20-day summer trial in East Texas. Data were collected on respiration rate, heart rate, heat stress scores, and behaviors including eating, ruminating, walking, and resting. Average respiration rates and behavior proportions did not differ significantly between treatments. Afternoon periods showed peak physiological stress across all cattle, but silvopasture appeared to buffer extreme responses. Although limitations such as data gaps and a shortened trial impacted interpretation, findings suggest …

Cotton Yield And Tissue-Potassium Response To Potassium Fertilization, Maria Paula Ramos Do Prado

Graduate Theses and Dissertations

Potassium (K) deficiency is a common yield-limiting factor in cotton (Gossypium hirsu tum L.) production across the U.S. Cotton Belt. Adequate fertilizer-K management is paramount to ensure optimum plant growth and development, minimizing yield losses. Currently, fertilizer K recommendations for cotton in Arkansas are derived from expected yield responses of other crops, with no calibrated fertilizer-K rates or critical tissue-K concentrations defined to maxim ize crop yield. Our research objectives were i) to investigate cotton yield response and fiber qual ity to K fertilization on soils with different K availability; ii) to correlate relative yield with tis sue-K concentrations at …

Coastal Consumption: Diet And Social Organization At Four Postclassic Sites In The Yucatán Peninsula, Paramita Choudhury

Graduate Theses and Dissertations

This research examines Postclassic Maya food practices during CE 1200–1600 to understand how eating behaviors reflect systems of social hierarchy, political economy, and cultural identity. The investigation focuses on four archaeological sites in the northern Yucatán Peninsula—Tulum, El Rey, El Meco, and San Miguelito—to examine dietary behaviors through dental microwear texture analysis (DMTA), oral pathology, and stable isotope data within a biocultural framework. The research aims to identify whether elite and non-elite individuals exhibited notable variations in food texture consumption, access to resources, and nutritional health. High-resolution 3D surface metrology enabled DMTA to assess the mechanical properties of consumed foods, …

Effect Of Marination And Storage Time On The Properties And Meat Quality Of Broiler Breast, Mayra Mabel Herrera Rivera

Graduate Theses and Dissertations

Abstract The poultry industry has implemented numerous methods, as marination and aging, to improve meat quality and satisfy consumer demands. Three experiments were developed to assess the effects of vacuum tumble marination and aging on the proteins of chicken breast. These experiments utilized 0.75 % sodium chloride, 0.45 % phosphate, and water in a marinade. In experiment one, 270 fillets were allocated into six treatment groups, each comprising 45 fillets. Six days of storage time were used, marinating and storing the fillets in each group at a temperature of 4°C. Following each day of storage period, the fillets underwent a …

Modeling U.S. Corn Production Archetypes In The Agricultural Policy/Environmental Extender Model To Generate Life Cycle Assessment Inventory Data, Brandon Taylor

Graduate Theses and Dissertations

Corn (Zea mays) is an important crop grown across the US for many uses such as grain for animal feed, bio-ethanol production, food products, and industrial products. Corn is produced in almost every state in the US, but most corn production is concentrated in the Corn Belt Region including Iowa, Illinois, Ohio, Indiana, Minnesota, and Nebraska. Although technologies and production practices are improving corn production efficiency primarily through increased yields (improved land use), corn production at this scale greatly impacts the environment through emissions from fertilizer and pesticide runoff and leaching, soil degradation due to improper field practices, as well …

Effects Of Flavonoids On Reducing Colon Cancer Risk Via Macrophage Polarization, Gracien Jules

Graduate Theses and Dissertations

Colorectal cancer is one of the most fatal diseases in the United States. Chronic tissue inflammation can cause cell proliferation, which leads to tumor formation and cancer development. Macrophages are responsible for maintaining tissue homeostasis and for inflammatory responses. M1 macrophages exhibit proinflammatory responses while M2 macrophages exhibit anti-inflammatory responses. Imbalance between M1 and M2 macrophages is closely related to inflammation-associated disease development. The anti-inflammatory effects of apiaceous vegetable constituents, specifically flavonoids, have been studied for their preventative effects towards reducing disease risk. However, sufficient evidence is lacking on the mechanisms by which flavonoids impact M1/M2 macrophage polarization. RAW 264.7 …

Polymer-Enhanced Nanopore Sensing, Eugene Gyasi Agyemang

Graduate Theses and Dissertations

The resistive pulse technique characterizes single analytes by detecting fluctuations in the ion current as they pass through a narrow orifice connecting two electrolyte-filled chambers, each containing a single electrode. The amplitude, shape, frequency, and duration of these fluctuations primarily provide information about the analyte’s size, shape, concentration, and net surface charge, respectively. One configuration for resistive pulse measurements is of an electrolyte-filled nanopipette immersed in a bath, where the nanopipette tip acts as the nanoscale orifice. It was previously shown that incorporating the large quantities polymer polyethylene glycol (PEG 8K, 50% w/v) into the external electrolyte bath dramatically enhanced …

The Influence Of Retail Display Conditions On Ground Beef Quality And Palatability, Sarah Lynn Shoup

Graduate Theses and Dissertations

The objectives of these studies were to evaluate the impact of retail display case type and muscle type on meat quality attributes, including color, lipid oxidation, texture, and volatile compound profiles, as well as to assess economic implications based on retail color degradation. Case type effects were further evaluated by considering environmental factors such as temperature, air velocity, and relative humidity and their influence on the shelf life of beef patties. An economic analysis was also conducted to estimate the value of patties based on a* (redness) scores at different points during retail display. In Study 1, differences in L* …

Hepatic Lipid Metabolism Of High And Low Water-Efficient Broiler Lines Under Heat Stress, Maria Fernandez Cuadrado

Graduate Theses and Dissertations

Heat stress (HS) is one of the most critical environmental challenges negatively impacting global poultry production, significantly compromising broiler performance, welfare, and economic viability. Specifically, heat stress profoundly disrupts physiological and metabolic processes, including hepatic lipid metabolism. Two broiler lines were divergently selected for high (HWE) or low (LWE) water efficiency. Heat-stressed HWE birds showed reduced fat content compared to their LWE counterparts, and HS reduced abdominal fat content in both lines. The purpose of this study was to determine the difference in underlying molecular mechanisms involved in this divergent fat content between the lines. Day-old chicks were placed in …

Socioeconomic Inequality In Child Malnutrition In Sudan: Results From The Multiple Indicator Cluster Survey (2014), Huda Mohamed Mukhtar Ahmed, Mutaz Fikri Mohamed Osman Digna

Journal of Arts and Social Sciences

This study investigates the association between nutrition indicators such as height/weight-for-age and weight-for-height with socioeconomic variables in Sudan, using the Multiple Indicator Cluster Survey data, 2014. These variables include Household's wealth quintiles, mother's highest education level, head of household's highest level of education, place of residence, age and gender of the child, region, and access sanitation facilities A concentration index and curve and a probit model used were to measure the socioeconomic inequality in under-five children malnutrition. The findings showed that the child's age (P = 0.000), mother's education of secondary and above (P = 0.046), and households’ richest quintile …

Associations Of Variation In Mtdna With Feed Efficiency In Beef Cattle And The Evaluation Of Transcriptomic Changes In Fetal Kidney Due To Hydrallantois, Lauren Elizabeth Seier

Department of Animal Science: Dissertations, Theses, and Student Research

Project 1 focused on the central role that mitochondria play in ATP production, highlighting that variation within the mtDNA may influence feed efficiency. Variation in the mitochondrial genome was uncovered, and associations with feed efficiency in beef cattle were identified. Growth and feed intake phenotypes, as well as low-pass sequencing, were collected on beef steers across two populations. Protein coding variants were identified and used to classify animals into mitochondrial haplotypes. A linear mixed model was employed, which detected a significant association between mitochondrial haplotype and DMI. A significant haplotype with a variant in Complex I was associated with reduced …

The Effect Of Diet Formulations Containing Different Protein Sources On Energy And Nitrogen Utilization In Lactating Jersey Cows, Kortney Ann Harpestad

Department of Animal Science: Dissertations, Theses, and Student Research

It is well understood that lactating dairy cows require metabolizable protein (MP) for milk yield and milk protein synthesis. Diets with conventional feed sources like corn and soybean meal (SBM) may not sufficiently meet all MP and amino acid (AA) requirements so supplementation with more rumen undegradable protein (RUP) rich feeds or rumen-protected AA can be fed to support animal performance. The growth trajectory of biofuels has resulted in dramatic increases in the production of feeds like heat treated soybean meal (HTSBM). While the chemical composition of this product is understood, there is a need to better understand how HTSBM …

Impact Of Humidity From Shrink (Wrap) Tunnels On Refrigeration Systems: Comparing Economic And Environmental Impact Of Natural Gas And Electric, Segun Samuel Oladipo

Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research

This thesis examines the economic and environmental effects of electric and steam shrink-wrapping tunnels used in beef packaging processes, paying particular attention to the indirect refrigeration loads caused by the heat and humidity that each system releases. Traditional sustainability evaluations frequently ignore these indirect impacts, which are especially important in meat processing facilities where 45–55% of electricity use is attributed to refrigeration. Life cycle assessment (LCA), field measurements, and thermodynamic modeling are all used in this work to offer a thorough analysis of both tunnel types.

The case study facility in Nebraska operates both steam and electric shrink tunnels to …

Improving Reading Proficiency Through A Structured Mtss Framework: Bridging The Gap Between Evidence And Practice, Meghan N. Greer

All Dissertations

This dissertation, Improving Reading Proficiency Through a Structured MTSS Framework: Bridging the Gap Between Evidence and Practice, investigates the efficacy of a Multi-Tiered System of Supports (MTSS) in enhancing reading proficiency among students. Despite extensive research supporting the effectiveness of targeted reading interventions, a gap remains between these findings and their practical implementation in diverse classroom settings. The Reading Wars—a longstanding debate between whole language, balanced literacy, and phonics-based instruction—have significantly influenced reading instruction in the United States. A growing body of research supports explicit, systematic phonics instruction as a critical component of early reading development (Foorman et al., 2016; …

Using Coaching To Improve Co-Teaching Practices Through The Use Of Improvement Science, Ashley D. Grech

All Dissertations

This dissertation in practice examines the impact of professional development and instructional coaching on improving co-teaching practices in a high-poverty Title I high school in South Carolina. Many co-teaching models fail to reach their full potential due to inadequate training, limited planning time, and unequal role distribution between general and special educators. Using a mixed-methods improvement science framework, this study implemented targeted professional development and bi-monthly coaching cycles to strengthen collaboration and instructional fidelity. Quantitative data included pre- and post-intervention educator observation rubrics; qualitative data were collected through coaching debriefs and empathy interviews. Results revealed increased implementation of co-teaching strategies …

The Intersection Of Makeup And Recreation: A 21st Century Overview Of Makeup Participation And Its Recreational Benefits, Jason Morgan

All Dissertations

This dissertation critically reconceptualizes makeup participation as a legitimate, multidimensional form of recreation. Through a comprehensive rapid review using the SPIDER framework of 102 peer-reviewed studies published between 2000 and 2025, the research investigates whether and how makeup fulfills the psychological, affective, and symbolic criteria of meaningful leisure. Drawing on the Serious Leisure Perspective (SLP) and broader recreation theory, the study positions makeup not merely as aesthetic behavior or consumer habit, but as a sustained, emotionally generative practice embedded in identity, creativity, personal growth, and well-being.

Findings reveal that makeup is consistently linked to confidence-building, emotional regulation, self-expression, and psychological …

Assessing The Mental Health Benefits Of A School-Based Urban Gardening Program In Kosova, Imri Zabeli

All Dissertations

ABSTRACT

This study investigated the mental health benefits of a school-based urban gardening program for primary school students in Kosovo, where there is limited access to psychological support within educational settings. A quasi-experimental pretest-posttest control group design was employed, involving 112 students aged 9 to 11 from two public schools in Pristina, who were divided into an intervention group (n = 56) and a control group (n = 56). The intervention group engaged in an 8-week structured gardening program, while the control group followed the standard curriculum. Psychological outcomes were assessed using validated instruments, including the Perceived Stress Scale for …

Essays On The Impact Of Childbirth On Parenthood And Childcare, Titir Dey

All Dissertations

This dissertation studies the impact of childbirth and parenthood on the labor market outcomes and decisions of parents. Of the three chapters, the first two talk about how childbirth affects the labor supply decisions of the parents and the subsequent impact on earnings. The third chapter talks about the effect of disruption in the childcare arrangements on the employment outcomes of parents during the recent COVID-19 pandemic.

The first chapter measures the short- and long-run declines (penalties) in annual earnings associated with the first childbirth for parents in the United States by exploiting the heterogeneity in their gender, educational attainment …

User Perceptions On Health: Three Cases Of Senior-Friendly Cities, Soomin Kim

All Dissertations

Senior issues have been rapidly rising in contemporary society since the Baby Boomer generation started retiring. Their change in socio-economic status is giving rise to several new social phenomena, one of which is senior isolation. For urban planners and designers, this new wave of senior isolation necessitates a fresh approach and reevaluation of formal urban environments.

This research proposes three questions around senior isolation. First, a) what aspects of the built environment contribute to senior isolation and loneliness in urban and suburban environments, and b) what are the effects of each on senior populations concerning the risk of isolation and …

Economic Analysis Of The Impact Of Development Programs On Buffalo Milk Producers In The Marshes Of Iraq As A Model, Mowj M. Nadhim, Osama K. Jabara, Mohammed J. Abdulradh

Journal of Economics and Administrative Sciences

The research examined the impact of development programs on local buffalo milk ‎producers in the marsh areas of Iraq, focusing on productivity levels and residents' living ‎standards. Data was collected from 200 producers in the governorates of Dhi-Qar, Maysan, ‎and Basra, all participating in the development program. ‎ The research assumed that the introduction of modern technologies and the provision ‎of production requirements by international organizations or government initiatives would ‎enhance the production levels and productivity of the rural population. Consequently, this ‎improvement may reflect their standard of living and strengthen their connection to the ‎land, thereby reducing migration. These …

The Effect Of Maternal Antioxidant Vitamin Supplementation On Maternal And Cord Blood Adiponectin Concentrations, Jessica L Pippen, Paula Mcgee, James M Roberts, Leslie Myatt, Michael W Varner, Alan T N Tita, Ronald J Wapner, John M Thorp, Brian M Mercer, Beth A Plunkett, Sean C Blackwell, Anthony Sciscione, George R Saade

Faculty, Staff and Student Publications

Adiponectin is a hormone that modulates glucose regulation and fatty acid oxidation. Low adiponectin concentration has been associated with increased insulin resistance. Studies show a beneficial effect of vitamin E supplementation on insulin sensitivity. We aimed to investigate the association of prenatal antioxidant supplementation with increased adiponectin concentrations in pregnant participants and their newborn infants.Secondary analysis of a randomized control trial of prenatal vitamin C and E supplementation to prevent preeclampsia in low-risk nulliparous participants. Plasma of participants at time of randomization (9-16 weeks gestation) and delivery, and neonatal cord blood were analyzed by specific enzyme-linked immunosorbent assay for adiponectin …

The Role Of Social Protection Programs In Reducing Poverty In Iraq: An Analytical Study, Nadia Lutfi Jaber, Thaer Mahmoud Rashid Al-Ani

Journal of Economics and Administrative Sciences

This research paper deals with SPP and their role in reducing poverty in Iraq. The study aimed to identify the impact of economic empowerment policies and programs and their effectiveness in generating income, in addition to social protection network programs, to verify the credibility of the hypothesis presented in the research. The analytical method and both the deductive and inductive approaches were relied upon. The results indicated that SPPs are effective tools for improving the conditions of people with low incomes, enhancing their productive capacities, providing sustainable job opportunities, and achieving social justice. This study examines the impact of SPP …

Health And Weather In Unfavourable Environments: Exploring The Historical Dynamics Of Colonial Medical Meteorology In Nineteenth-Century Tropical Asia, Fiona Williamson

Research Collection College of Integrative Studies

Medical meteorology had a long precedent in medical thought across Eastern and Western traditions. This article considers the tradition of medical meteorology that was favoured by Western doctors in the nineteenth century, which was often applied within colonial contexts to the understanding of new climates and how they might impact on human health. Looking at British-held tropical and sub-tropical colonies of the Straits Settlements and Hong Kong respectively, medical meteorology was stimulated by the new pathological and atmospheric conditions that European explorers and settlers now inhabited in the name of the British Empire. They brought with them concepts of disease …

Applying Transcriptomics For Technology Development And Conservation In North American Marine Organisms, Cory Von Eiff

Dissertations

RNA biology is a rapidly expanding field, with many avenues of discovery among marine organisms. In this study, we analyze both mollusks and sawfish. First, we perform an evaluation of sRNA biogenesis pathways throughout Mollusca, with emphasis on the easter oyster, Crassostrea virginica. Understanding these molecules prescribes RNAi-based gene silencing approaches, benefiting genetic investigation and biotechnology. Similar to other animal groups, mollusks have conserved microRNAs (miRNAs), with some shared with ecdysozoans and deuterostomes; however, there is no evidence of an endogenous small interfering RNA (siRNA) pathway. These results suggest that long double-stranded RNA (dsRNA)-based RNAi is not appropriate for gene …

Trends In The Use Of Non-Nutritive Sweeteners Among Female University Students In The United Arab Emirates, Dalia Haroun, Aseel Ehsanallah, Wafa Mubarak

All Works

Objective: This study aimed to explore the consumption patterns of non-nutritive sweeteners (NNS) among female university students in the United Arab Emirates (UAE), in the context of rising health awareness. Methods: A cross-sectional survey was conducted from February to April 2023 among female university students in the UAE. A total of 192 participants aged 18 and above were recruited through convenience sampling. A structured, self-administered online questionnaire was used to collect data on NNS consumption, motivations for use, physical activity, dietary habits, and self-reported height and weight. Body Mass Index (BMI) was calculated and categorized using the World Health Organization …

Anaphylaxis Definition, Overview, And Clinical Support Tool: 2024 Consensus Report-A Ga2len Project, Timothy E Dribin, Antonella Muraro, Carlos A Camargo, Paul J Turner, Julie Wang, Graham Roberts, Aikaterini Anagnostou, Susanne Halken, Jay Liebermann, Margitta Worm, Torsten Zuberbier, Hugh A Sampson, Ga(2)Len Anaphylaxis Study Team

Faculty, Staff and Students Publications

Background: The 2006 National Institute of Allergy and Infectious Disease/Food Allergy and Anaphylaxis Network anaphylaxis criteria are widely used in clinical care and research. In 2020, the World Allergy Organization published modified criteria that have not been uniformly adopted. Different criteria contribute to inconsistent care and research outcomes.

Objective: We sought to develop a consensus anaphylaxis definition, overview, and clinical support tool.

Methods: A 12-member writing group developed draft outputs modified with input from a 46-member international expert panel, 31 medical stakeholder organizations, and 15 patient advocacy organizations. The expert panel participated in a modified Delphi process to seek consensus …

Antioxidant Potential And Active Compound Identification Of Hylocereus Costaricensis And Hylocereus Undatus Peel Extracts Using Lc-Ms/Ms, Ade Heri Mulyati, Reni Nurmayani, Diana Widiastuti, Siti Warnasih, Siska Elisahbet Sinaga

Chimica et Natura Acta

The object of this research was to determine the antioxidant potential and identify active compounds in the peel extracts of red dragon fruit (Hylocereus costaricensis) and white dragon fruit (Hylocereus undatus). Phytochemical tests were conducted to identify flavonoids, alkaloids, tannins, coumarins, and saponins. The antioxidant activity was assessed using the DPPH assay, while vitamin C content was quantified using UV-Vis spectrophotometry, and bioactive antioxidant compounds were identified through LC-MS/MS spectrophotometry. The results demonstrated that phytochemical screening revealed the presence of flavonoids and alkaloids in both extracts. Antioxidant activity assays indicated that the red dragon fruit peel extract exhibited an IC50 …