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2025

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“What’S Supp” Developing An In Vitro Model For Healthy Oral Biofilms, Alex Labossiere Jan 2025

“What’S Supp” Developing An In Vitro Model For Healthy Oral Biofilms, Alex Labossiere

Open Access Dissertations

The study of oral plaque has largely been influenced by the study of pathogens. Here in Chapter 1, I will discuss how this pathogenic focus has been dominant until the onset of microbiome research and begin to explain microbiomes in the context of supragingival plaque in homeostatic communities. From there we will then discuss the possible roots where dysbiosis may arise from plaque to cause disease and ways in which we can study healthy supragingival plaque by in vitro models.

In chapter 2, I will discuss molecular commensalism and how it can be viewed as a tool to further understand …


"Understanding Obesity Experiences And Treatment Decision-Making In Hispanic-Latino Communities”, Viviane Fornasaro-Donahue Jan 2025

"Understanding Obesity Experiences And Treatment Decision-Making In Hispanic-Latino Communities”, Viviane Fornasaro-Donahue

Open Access Dissertations

Obesity disproportionately affects Hispanic-Latino adults in the United States, yet rates of metabolic and bariatric surgery (MBS) remain lower in this population compared with non-Hispanic White adults. This dissertation comprises three interconnected phases aimed to (I) explore perceptions of obesity, obesity treatment, and patient-provider communication, (II) inform the development of a culturally responsive bilingual educational material about obesity and MBS, and (III) evaluate its acceptability among Hispanic-Latinos adults with obesity.

Phase I involved a qualitative exploration using semi-structured interviews with Hispanic-Latino adults (n=26) recruited from a community and a clinical MBS setting. These interviews explored participants’ perceptions of …


Revised Final Multi-Pathway Residential Metals Abatement Program Plan, Atlantic Richfield Company, Butte Silver Bow Jan 2025

Revised Final Multi-Pathway Residential Metals Abatement Program Plan, Atlantic Richfield Company, Butte Silver Bow

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.


Protocol For The Asian Cohort For Alzheimer's Disease (Acad) Study, Pei-Chuan Ho, Walter A Kukull, Et Al. Jan 2025

Protocol For The Asian Cohort For Alzheimer's Disease (Acad) Study, Pei-Chuan Ho, Walter A Kukull, Et Al.

2020-Current year OA Pubs

INTRODUCTION: To address knowledge gaps in Alzheimer's disease (AD) research, the Asian Cohort for Alzheimer's Disease (ACAD) Study will recruit over 5000 participants of Asian descent aged 60 or older in the United States and Canada. The current focus is on participants with Chinese, Korean, or Vietnamese ancestry, with the goal of characterizing both genetic and non-genetic risk factors. ACAD has assembled a culturally and linguistically appropriate data collection protocol, as well as a biosample collection protocol. Recruitment strategies follow community-based participatory research (CBPR) approaches to encourage research participation and engage Asian communities in brain health education.

METHODS: The ACAD …


Testing The Antigenic Potential Of Transmembrane Proteins To Develop A Thermostable Tuberculosis Mof-Liposomal Vaccine, Sneha Kumari, Jonathan Martinez-Garcia, Ryanne Nicole Ehrman, Wendy Tang, Joshua Miles, Priyanka Basak, Thomas Sinclair Howlett, Yalini Hansika Wijesundara, Ziqi Wang, Blanca I. Restrepo Jan 2025

Testing The Antigenic Potential Of Transmembrane Proteins To Develop A Thermostable Tuberculosis Mof-Liposomal Vaccine, Sneha Kumari, Jonathan Martinez-Garcia, Ryanne Nicole Ehrman, Wendy Tang, Joshua Miles, Priyanka Basak, Thomas Sinclair Howlett, Yalini Hansika Wijesundara, Ziqi Wang, Blanca I. Restrepo

School of Medicine Publications

Tuberculosis is one of the deadliest infectious diseases and continues to be a major health risk in many parts of the world. Even today, the century-old Bacillus Calmette-Guerin (BCG) vaccine is the only formulation on the market and is ineffective for several sections of the global population responsible for transmission. In the search for antigens that can mount a robust immune response, we have reported the recombinant expression and purification of two novel membrane proteins, the Cation transporter protein V (CtpV) and the Mycobacterial copper transporter B (MctB) present on the membrane surface of Mycobacterium tuberculosis. CtpV was tested …


Characterization Of Lipids In Tenebrio Molitor Larvae And Pupae Under Various Extraction Methods, Nariman A. Ktil Jan 2025

Characterization Of Lipids In Tenebrio Molitor Larvae And Pupae Under Various Extraction Methods, Nariman A. Ktil

Graduate Theses, Dissertations, and Problem Reports (ETD)

Tenebrio molitor, or the yellow mealworm is an edible insect widely recognized and consumed for its rich nutritional value. Mealworms are known for their flexible nature of adapting to various environmental conditions and being able to thrive under harsh conditions and low-value wastes. In this paper, our main goal was to investigate the mealworm’s ability to grow and develop while being reared on apple pomace, the biowaste from apple production, and the effect it would have on its nutritional value specifically its lipid profile. Then these reared insects were used for oil extraction and analyzing their fatty acid profiles. …


Therapeutic Roles For Alkaline Phosphatases To Target Intestinal Dysfunction In Mouse Models Of Experimental Sepsis And Ischemic Stroke, Rhiannon V. Macom Jan 2025

Therapeutic Roles For Alkaline Phosphatases To Target Intestinal Dysfunction In Mouse Models Of Experimental Sepsis And Ischemic Stroke, Rhiannon V. Macom

Graduate Theses, Dissertations, and Problem Reports (ETD)

Abstract

Therapeutic Roles for Alkaline Phosphatases to Target Intestinal Dysfunction in Mouse Models of Experimental Sepsis and Ischemic Stroke

Rhiannon V. Macom

Stroke is a disease that primarily affects the brain; however, ongoing research continues to show that stroke has far reaching systemic effects that can affect both short- and long-term recovery. The gastrointestinal tract has been shown to be affected post-stroke, and these effects are likely due to the bidirectional communication between the gut and the brain via the gut-brain-axis. Alkaline phosphatases (APs) are common membrane bound enzymes that are known to have a role in mitigating inflammation. The …


The Impact Of Political Party Control On Health Outcomes In U.S. States, Trevor G. Samaha Jan 2025

The Impact Of Political Party Control On Health Outcomes In U.S. States, Trevor G. Samaha

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation examines the impact of political party control on health outcomes in U.S. states, focusing on three key indicators: infant mortality, Type II Diabetes deaths, and COVID-19 deaths. Using quantitative methods and data primarily from the Centers for Disease Control and Prevention (CDC), this study investigates whether the party affiliation of governors and state legislatures significantly influences these health outcomes. While existing literature suggests that Democratic-led states may achieve better health outcomes due to greater public investment in healthcare, the findings of this dissertation challenge these assumptions. Across all three cases, the analysis reveals predominantly null results, suggesting that …


Sensory Evaluation And Consumer Acceptance Of A Protein Enriched Energy Bar, Brennah T. Groves Jan 2025

Sensory Evaluation And Consumer Acceptance Of A Protein Enriched Energy Bar, Brennah T. Groves

Graduate Theses, Dissertations, and Problem Reports (ETD)

ABSTRACT

Sensory Evaluation and Consumer Acceptance of a Protein Enriched Energy Bar

Brennah Groves

This study evaluated the sensory properties and consumer acceptance of a protein enriched energy bar. The objectives of this study were to 1) formulate a high-protein energy bar containing at least 20 g of protein per 100 g serving, and 2) determine whether increasing the protein content in an energy bar would enhance the sensory evaluation and improve consumer acceptance among collegiate athletes. The control energy bar featured a shortbread base, date caramel with whey protein, a nougat layer, and a chocolate coating. Additional collagen protein …


Adminstrative And Programmatic Supports To Enhance Veteran-Service Dog Programming, Madison Davisson Jan 2025

Adminstrative And Programmatic Supports To Enhance Veteran-Service Dog Programming, Madison Davisson

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: Service dogs have long served as a valuable resource to assist veterans in overcoming challenges such as transitioning to post-military life, re-engaging in life roles, and navigating the community. There is substantial research on the benefits and impacts that service dogs have on the lives of veterans. Because of this, the number of service dog-veteran partnerships is on the rise, and each service dog program has its individualized programmatic method to enhance its offerings. However, there is limited information on administrative and programmatic support for service dog training programs intended for veterans and staff members. The veteran perspective is …


Sensory Integration In The Intensive Care Unit Environment, Kara M. Lee Jan 2025

Sensory Integration In The Intensive Care Unit Environment, Kara M. Lee

Graduate Theses, Dissertations, and Problem Reports (ETD)

Those admitted to the intensive care unit (ICU) commonly experience deficits in areas linked with cognition, mental health, and physical functioning (Rapolthy-Beck et al., 2023). Delirium is the most common complication among individuals who are mechanically ventilated, which can be associated with adverse outcomes, including increased mortality, cognitive decline, and decreased functional outcomes (Martinez et al., 2017). The primary purpose of the capstone project was to create a sensory-based program for patients admitted into the ICU. The program aimed to enhance the quality and consistency of care, ultimately reducing the prevalence of delirium. By doing so, it seeks to improve …


Genomic Differences And Parentage In West Virginia's Reintroduced Elk (Cervus Canadensis), Adam A.V. Cook Jan 2025

Genomic Differences And Parentage In West Virginia's Reintroduced Elk (Cervus Canadensis), Adam A.V. Cook

Graduate Theses, Dissertations, and Problem Reports (ETD)

Elk (Cervus canadensis) reintroductions have been common in the 20th and 21st centuries, yet 40% have failed to establish self-sustaining elk populations due to a lack of post-reintroduction demographic monitoring. Elk were reintroduced to West Virginia in 2016 following more than a century of absence after the species was extirpated in 1875. Elk were translocated to West Virginia from Land Between the Lakes National Recreation Area (LBL) in eastern Kentucky and from Arizona. The two groups of elk differ in their subspecies, physiology, reintroduction history, connectivity, and habitat. Reintroductions create genetic risks such as the founder effect and …


Microbiological Examination Of Yellow Mealworm (Tenebrio Molitor) Larvae Under Various Processing And Storage Conditions As Potential For Human Consumption, Rachel Midkiff Jan 2025

Microbiological Examination Of Yellow Mealworm (Tenebrio Molitor) Larvae Under Various Processing And Storage Conditions As Potential For Human Consumption, Rachel Midkiff

Graduate Theses, Dissertations, and Problem Reports (ETD)

Yellow mealworm (Tenebrio molitor) larvae have gained attention as a sustainable and nutritionally balanced food source, yet their high natural bacterial load raises food safety concerns. This study investigates the impact of pre-processing, processing, and storage conditions on microbial load and diversity in mealworms, comparing thermal (hot) and non-thermal (cold) treatments. These treatments include freeze-drying, wet heat treatments, dry heat treatments, and the combination of wet and dry heat treatments against untreated controls. Microbial loads were quantified by plate counts after day 0, day 10, and day 28 of vacuum-sealed refrigerated (4°C) storage. Water activity (Aw), pH, and moisture content …


Facilitating Independence: Developing A Hands-On Life Skills Program For Youth In Residential Treatment, Shayna Rexrode Jan 2025

Facilitating Independence: Developing A Hands-On Life Skills Program For Youth In Residential Treatment, Shayna Rexrode

Graduate Theses, Dissertations, and Problem Reports (ETD)

Life skills competency in adolescence can be an important predictor of success in adulthood. Educational and training programs focused on life skills can help youth develop the skills that they need to live independently. Though occupational therapy literature surrounding these types of programs is limited, occupational therapy practitioners are qualified to provide intervention in life skills based on the profession’s scope of practice.

This capstone project focused on the development and evaluation of a new life skills program, the Life Skills Practice Program, at a residential treatment facility for youth with substance use and behavioral diagnoses. Stakeholders at the facility …


Impact Of Whey And Soy Protein Supplementation On Resistance Training In Young Adults: A Systematic Literature Review And Meta-Analysis, Brandon Eric Davis Jan 2025

Impact Of Whey And Soy Protein Supplementation On Resistance Training In Young Adults: A Systematic Literature Review And Meta-Analysis, Brandon Eric Davis

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: Whey protein is a popular supplement in sports nutrition. Soy protein is an alternative to whey protein, often marketed to individuals following a plant-based diet. Evaluating whey and soy protein supplementation's role in resistance exercise is essential for providing evidence-based nutrition guidance.

Objective: The study aim was to conduct a systematic literature review and meta-analysis on randomized control trials (RCTs) on the effectiveness of whey and soy protein supplementation on outcomes of lean body mass (LBM), squat, bench press, and plasma essential plasma amino acid (EAA) levels in young adult men and women.

Methods: The databases …


Microwave-Assisted Reduction Of Critical Metal Oxides From E-Waste Mixture, Kurundu Shavinka Jayasekera Jan 2025

Microwave-Assisted Reduction Of Critical Metal Oxides From E-Waste Mixture, Kurundu Shavinka Jayasekera

Graduate Theses, Dissertations, and Problem Reports (ETD)

The efficient recovery of critical metals such as tantalum (Ta), manganese (Mn), gallium (Ga), and indium (In) from electronic waste (e-waste) is essential for resource sustainability and environmental protection. This research uses microwave-assisted treatment to investigate the carbothermal reduction of these four specific metals from their oxides in a simulated e-waste mixture, with carbon black serving as both a microwave coupling and reduction agent. Microwave processing is used specifically because it offers a rapid and energy-efficient alternative to conventional thermal methods, with the benefits of intrinsic heating and selective heating of materials. The first experiments centered on understanding the effects …


Implementation Of An Evidenced Based Enteral Nutrition Protocol For Mechanically Ventilated Patients: A Quality Improvement Initiative, Hannah R. Nuzum Jan 2025

Implementation Of An Evidenced Based Enteral Nutrition Protocol For Mechanically Ventilated Patients: A Quality Improvement Initiative, Hannah R. Nuzum

Graduate Theses, Dissertations, and Problem Reports (ETD)

Abstract

Implementation of an Evidenced Based Enteral Nutrition Protocol for Mechanically Ventilated Patients: A Quality Improvement Initiative.

Hannah Nuzum

Background: Mechanically ventilated patients require supplemental nutrition as an important factor for their overall recovery. Malnutrition in hospitalized patients is reported as high as 35% (Ikram et al., 2022).

Purpose: Lack of an enteral nutrition (EN) protocol has contributed to variability in initiation of EN for post-intubated mechanically ventilated patients.

Intervention: The project interventions are threefold: the development of an EN protocol, EN initiated within 24 to 28 hours for post-intubation patients, and staff understands that EN should be initiated within …


Beyond The Byproduct: Exploring Approaches For The Sustainable Valorization Of Underutilized Food Streams, Ian Phillip Israelsen Jan 2025

Beyond The Byproduct: Exploring Approaches For The Sustainable Valorization Of Underutilized Food Streams, Ian Phillip Israelsen

Graduate Theses, Dissertations, and Problem Reports (ETD)

Commercial food processing creates side-streams that are often underutilized yet hold significant potential for valorization into value-added products for consumer use. This study investigated and compared potential protein recovery and lipid removal potential from buckwheat (BW; Fagopyrum esculentum Moench), brewer’s spent grain (BSG), and coffee silverskin (CSS) using a one-step solvent defatting and a pH-shift protein extraction method. The extraction efficiency yields of extracted protein from CSS were significantly lower than all other samples (p < 0.05). The defatted BW had the highest extracted protein content of all samples (p < 0.05). The sizes of the proteins in the starting materials were observed using LDS-PAGE. These sizes were consistent with published values and were mostly unchanged by defatting or the pH-shift process. The presence of 13S globulins and 2S albumins was confirmed under reducing conditions. Protein extracted from all native samples had lower total free essential amino acids than the starting materials. Native CSS and extracted protein followed this trend, but in defatted CSS and respective extracted protein samples, the extracted proteins had higher free essential amino acid content than the starting materials, sometimes of twofold or greater (p < 0.05). After defatting, the percentage of lipids recovered compared to the original lipid content of the samples was measured. The crude fat content of native and hexane-defatted BW flour was higher than BW flour defatted with ethanol (p < 0.05). The lipid extraction efficiency of all samples ranged from 4.6 ± 1.26%–43.20 ± 14.21%. The mass of the native and defatted starting materials were recorded at each step of processing, with reasonable losses assessed. The major non-polar lipid classes in each starting material were separated using thin-layer chromatography. All samples also displayed the presence of polar lipids. When comparing starting materials, BW and BSG was the most effective for protein extraction, and BSG has the most promise for lipid removal and potential for upcycling. All the examined starting materials show promise for use in food supplementation, especially as native flours. These products are plentiful and considered underutilized or side-stream products.


Resilience In Adolescents With Type 1 Diabetes: The Relation Between Grit, Benefit-Finding, Diabetes Distress, Hba1c And Health-Related Quality Of Life, Hannah Hardiman Jan 2025

Resilience In Adolescents With Type 1 Diabetes: The Relation Between Grit, Benefit-Finding, Diabetes Distress, Hba1c And Health-Related Quality Of Life, Hannah Hardiman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: Type 1 diabetes (T1D) is a common pediatric chronic illness that requires complicated management by both the child and their caregiver. Research and clinical guidelines have highlighted adherence (as measured by HbA1c) and health-related quality of life (HRQOL) as important outcomes particularly in adolescents with T1D. Notably, diabetes distress has been identified as a risk factor contributing to poor adherence and HRQOL outcomes in this population. Given these considerations, understanding what resilience factors contribute to optimal outcomes is vitally important to inform future interventions. Grit and benefit-finding are two novel resilience factors that have yet to be fully evaluated …


Efficacy Of Salmonella Surrogate Enterococcus Faecium In Poultry And Mash Broiler Feed, Corey Waitman Coe Jan 2025

Efficacy Of Salmonella Surrogate Enterococcus Faecium In Poultry And Mash Broiler Feed, Corey Waitman Coe

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation investigates the efficacy of Enterococcus faecium as a surrogate for Salmonella in validating thermal inactivation processes during poultry feed manufacturing and meat processing. The research encompassed three studies evaluating microbial kinetics in mash broiler feed, reconstructed ground chicken, and predictive modeling approaches to improve food safety interventions. In the first study, the thermal resistance of nalidixic acid-resistant Salmonella Typhimurium and E. faecium was compared in mash broiler feed heated at 75–95°C. Results demonstrated that E. faecium exhibited significantly greater heat resistance than Salmonella, with longer shoulder times, greater tailing effects, and higher D-values, supporting its use as …


Neuroendocrine Regulation Of The Luteinizing Hormone Surge And Puberty Onset In Sheep, Max J. Griesgraber Jan 2025

Neuroendocrine Regulation Of The Luteinizing Hormone Surge And Puberty Onset In Sheep, Max J. Griesgraber

Graduate Theses, Dissertations, and Problem Reports (ETD)

Gonadotropin-releasing hormone (GnRH), luteinizing hormone (LH), and follicle stimulating hormone (FSH) are essential for the reproduction of all mammalian species, including both sheep and humans. GnRH is secreted by hypothalamic neurons into the hypophyseal portal vasculature in a pulsatile manner, which then acts within the anterior pituitary to elicit the release of LH and FSH into wider systemic circulation. In females LH and FSH act on the ovaries to promote estradiol (E2) production, follicular development, and under certain conditions in regard to LH, ovulation. Furthermore, while E2 inhibits GnRH and subsequent LH secretion under most conditions, at high concentrations E2 …


Molecular Characterization Of Fungus-Arthropod Associations, Angie M. Martin Jan 2025

Molecular Characterization Of Fungus-Arthropod Associations, Angie M. Martin

Graduate Theses, Dissertations, and Problem Reports (ETD)

Arthropods, or phylum Arthropoda, are the largest group of animals, accounting for over three quarters of all animal records on NCBI Taxonomy. And yet, only 40% of all deposited sequences on NCBI Nucleotide come from arthropods. Clearly, arthropods are an understudied group of animals: they are small, often drab, and lead lives very alien to our own. Arthropods have chitinous exoskeletons, segmented bodies, and jointed appendages, and include crabs, barnacles, insects, spiders, and millipedes. Since the era of DNA based studies took off in the 1980s, DNA and other small molecules have been integral to our understanding of the Earth …


Evaluating Osmia Cornifrons As An Effective Pollinator For Agricultural Crops: An Analysis Of Hair Morphology And Sex-Ratio Distorting Bacterium, Wolbachia, Nellie Heitzman Jan 2025

Evaluating Osmia Cornifrons As An Effective Pollinator For Agricultural Crops: An Analysis Of Hair Morphology And Sex-Ratio Distorting Bacterium, Wolbachia, Nellie Heitzman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Effective pollination relies not only on the presence of pollinators but also on their morphological adaptations and reproductive biology. In this study, I investigated both the external hair morphology and the intracellular bacterial infection status of Osmia cornifrons, a solitary bee species increasingly used in orchard pollination due to its efficiency and early seasonal activity. Using Scanning Electron Microscopy (SEM), I characterized the distribution and structure of two major hair types present on the bee's body: branched and unbranched. Branched hairs were found widely distributed across the head, thorax, dorsal abdomen, and legs, and appeared to function primarily in incidental …


Monitoring West Virginia Wastewater For Norovirus: A Test Case For Tracking Foodborne Illness Outbreaks In Rural Communities Using Wastewater, Haley M. Phillippi Jan 2025

Monitoring West Virginia Wastewater For Norovirus: A Test Case For Tracking Foodborne Illness Outbreaks In Rural Communities Using Wastewater, Haley M. Phillippi

Graduate Theses, Dissertations, and Problem Reports (ETD)

Foodborne illnesses are a global public health challenge. Foodborne illnesses, like norovirus, often have a large disease and societal burden. Norovirus is a single-stranded, positive-sense RNA virus, with 10 identified genogroups (GI-GX). Genogroups GI and GII are responsible for nearly all human cases of acute gastroenteritis worldwide. In the United States, HuNoV is not notifiable case-by-case. Instead, outbreaks are reported to national surveillance systems when two or more cases are epidemiologically linked. Most norovirus outbreaks occur during Winter to early Spring, however, certain individuals may still shed and transmit the virus without being detected or reported. Wastewater monitoring is a …


An Analysis Of Usopc National Governing Body Policies Related To Body Pressures, Body Image Concerns, And Eating Pathology, Sarah Margaret Sadler Jan 2025

An Analysis Of Usopc National Governing Body Policies Related To Body Pressures, Body Image Concerns, And Eating Pathology, Sarah Margaret Sadler

Graduate Theses, Dissertations, and Problem Reports (ETD)

Athletes are often exposed to body pressures in sport environments (Voelker & Reel, 2020), which can contribute to body image concerns and eating pathology (Petrie & Greenleaf, 2007, 2012) with lasting consequences for performance and well-being. Although research has highlighted the harmful impacts of these concerns, and has called for a broader investigation into the sources of athletes’ experiences of these concerns (Voelker et al., 2022), little is known about the role of sport organizations in influencing athletes’ body pressures, body image concerns, and eating pathology. Using a descriptive qualitative research design within a post-positivist paradigmatic approach, the current study …


Non-Lethal Sampling Methods For Fish Health Assessments Using Smallmouth Bass Micropterus Dolomieu, Lindsey Nicole Hartzell Jan 2025

Non-Lethal Sampling Methods For Fish Health Assessments Using Smallmouth Bass Micropterus Dolomieu, Lindsey Nicole Hartzell

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the early 2000s, fish kills of different species, including smallmouth bass Micropterus dolomieu, were reported in areas of the Potomac River drainage, including the Shenandoah River in Virginia. Since the first reports of fish kills and lesions affecting smallmouth bass, they have continued to show signs of adverse health effects. Additionally, in some areas of the Potomac River drainage, population declines have occurred, and lethal sampling is discouraged. To develop a holistic, integrative approach to assess fish health, Smallmouth Bass were collected and sampled using non-lethal techniques at three sites within the Shenandoah River drainage, VA and one …


Longitudinal And Ensemble Modeling Of Beef Cattle Feed And Water Intakes, Nathan El Blake Jan 2025

Longitudinal And Ensemble Modeling Of Beef Cattle Feed And Water Intakes, Nathan El Blake

Graduate Theses, Dissertations, and Problem Reports (ETD)

Beef cattle production remains a cornerstone of global food systems, providing highly bioavailable protein and essential micronutrients that are difficult to secure from plant-based foods alone. Yet this production is also resource-intensive, requiring substantial land, feed, and water inputs while contributing significantly to greenhouse gas emissions. Efficiency of dry matter intake (DMI) and water intake (WI) is central to both productivity and sustainability, but accurate measurement of these traits—particularly in grazing systems—remains a major limitation. National WI standards continue to rely on pen-level data collected in the 1950s, while most existing DMI prediction equations perform poorly when applied beyond the …


Microbial And Plant Biodiversity In Appalachian Agroecosystems And Their Implications For Soil Health, Kinsey Reed Close Jan 2025

Microbial And Plant Biodiversity In Appalachian Agroecosystems And Their Implications For Soil Health, Kinsey Reed Close

Graduate Theses, Dissertations, and Problem Reports (ETD)

The sustainability of agricultural landscapes depends on understanding the complex interactions between plants, soil, and microbes. In Appalachia, a region shaped by complex terrain and long histories of human and ecological interaction, small family farms produce hay, livestock, and row crops. These agroecosystems, though often treated as “artificial” by many ecologists, have the potential to support both food production and biodiversity conservation if managed with an understanding of ecological complexity. This dissertation examines how plant and microbial diversity interact with soil and management to influence nutrient cycling, soil health, and long-term resilience in Appalachian agricultural systems. A literature review revealed …


Synergetic Effect Of Cellulose And Chitosan Polymers In Cancer Treatment, Grace Peterson Jan 2025

Synergetic Effect Of Cellulose And Chitosan Polymers In Cancer Treatment, Grace Peterson

Graduate Theses, Dissertations, and Problem Reports (ETD)

This research explores the development of a biocompatible, natural drug delivery system designed for targeted cancer therapy. Lung cancer cells are used in these particular tests, but further research indicates treatment could be used for various cancer types. Traditional cancer treatments like chemotherapy are often limited by poor selectivity for tumor cells, causing significant damage to healthy tissues. The study proposes a dual-layered delivery system, utilizing Carboxymethyl Cellulose (CMC) as the core material and a charge-reversible chitosan shell to encapsulate and target cancer drugs. CMC, with its water solubility and ability to form stable gels, serves as a stable drug …


Exploring The Ruminal Microbiome And Its Impacts On Feed Efficiency In Beef Cattle, Taylor Simone Sidney Jan 2025

Exploring The Ruminal Microbiome And Its Impacts On Feed Efficiency In Beef Cattle, Taylor Simone Sidney

Graduate Theses, Dissertations, and Problem Reports (ETD)

The ability for beef cattle to utilize feed efficiently is a critical determinant for both economic and environmental sustainability in livestock production. However, despite extensive research, the complex microbial ecosystem within the rumen and its relationship to feed efficiency remain incompletely understood. This dissertation explores the physiological and microbial foundations of feed efficiency by characterizing how rumen microbial communities and their functions differ among beef cattle with divergent residual feed intake (RFI) phenotypes and how the RFI status of beef cattle influenced their response to dietary interventions such as supplementation with a Bacillus-based feed additive. In the first study, …