Digital Commons Network^™

Deadwood Facilitates Increased Predators Resulting In Distinct And Functionally Different Leaf Litter Communities, Nicholas Benedetto

Master's Theses

Community structure and ecosystem function may be driven by the amount and size of habitat or energy within an environment, but these metrics (space and energy) are difficult to separate, especially in systems where habitat is also a source of energy such as detritus (dead organic matter including deadwood). Deadwood can impact forest food webs through the creation of habitat and provision of resources and initial differences in wood characteristics may differentially impact food webs. Bark beetles attack and kill pine trees, inoculating them with bluestain fungi (Ascomycota: Ophiostomataceae). Bluestain fungi may increase termite presence in deadwood, and possibly in …

Nutritional Adequacy Of Dietary Intake Among College Students Who Follow A Vegetarian Diet As Compared To Non-Vegetarian Students, Kayanna L. Pulliman

Master's Theses

No abstract provided.

Incorporating Active Learning Into Breastfeeding Education And Lactation Management Training Of The Future Registered Dietitian Nutritionist, Madelyn Sesser

Master's Theses

Background: Breastfeeding has been shown to have multiple benefits for mother and child, yet rates of breastfeeding continue to stay insignificant. Infant nutrition is the base of future health of an individual, yet Registered Dietitians are not provided in depth breastfeeding education during their education.

Objective: The purpose of this study is to evaluate the active learning component of breastfeeding and lactation education modules meant to increase self-efficacy and confidence in the ability to perform lactation education and to obtain feedback regarding the usefulness of the developed education modules in graduate-level dietetic interns.

Design: This study was part of a …

The Role Of Notch3 In Human Adipose Stem Cell Fate, Sydney Mashaw

Master's Theses

Stem cell-based therapies are the future of medicine, as their natural abilities of self-renewal and differentiation have the potential to treat currently incurable diseases. Stem cells are categorized based on differentiation potential, with multipotent stem cells being the most differentiated while still having the ability to divide down defined lineages. Adipose stem cells (hASCs) are easily derived multipotent, mesenchymal stem cells with already demonstrated therapeutic potential. Despite current success, there are a multitude of factors that regulate the physiology and role of adipose stem cells, including transduction pathways and transcription factors, that remain to be researched and fully understood. One …

Effects Of Triptorelin On Global Deoxyribonucleic Acid Methylation In Skeletal Muscle In Male Adolescent Rats, Max Boland

Master's Theses

The purpose of this study was to investigate how treatment with triptorelin, a gonadotropin releasing hormone agonist, to block puberty in adolescent male rats affects their epigenetic regulation via global DNA methylation changes in skeletal muscle and to determine if physical activity has an effect on DNA methylation status during treatment. Twenty-four male, Sprague-Dewey rats were randomly assigned to different groups: 12 treated with 1 μg of triptorelin daily (PB group) while the other 12 received an equivalent volume of saline as a placebo (control, CON) for four weeks. In order to determine the interaction with physical activity, six PB …

A Cross Sectional Comparison Of The Mental Health, Sleep, And Anaerobic Power Of Cannabis Users, Cannabidiol Users, And Non Users, Taylor Tamanaha

Master's Theses

The purpose of this study was to determine whether there are differences among groups of individuals who regularly use cannabis, cannabidiol (CBD), or who are non-users with respect to mental health, sleep, and anaerobic power measures. A total of 24 participants (21 males and 3 females) were recruited and placed into groups based on their regular cannabis/CBD or non-cannabis/CBD use. The cannabis user group was using cannabis at least three times per week for the past 8 weeks (CA; n=8), the CBD user group was using CBD at least three times per week for the past 8 weeks (CB; n=8), …

Exploring The Effect Of 8 Weeks Of Cannabidiol On Serum Brain-Derived Neurotrophic Factor, Seth T. Kofman

Master's Theses

Studies have shown that cannabidiol (CBD) consumption may lead to neuroprotective effects. Brain-derived neurotrophic factor (BDNF) is a circulating biomarker of neural health and studies exploring the effects of CBD on BDNF concentrations are limited. Purpose: The purpose of this study is to determine whether a longer-term CBD intervention would significantly change BDNF concentrations in human serum. Methods: This study used a double-blind placebo-controlled design where thirty-five healthy adult participants were randomly assigned into two groups. Participants were 25.94 ± 6.5 years of age with a body weight of 72.35 ± 13.89 kg and a body fat percentage of 22.61 …

Disruption Of Play Behavior Influences Development Of Caution In Juvenile Ground Squirrels, William Ryan

Master's Theses

Play behavior is ubiquitous among young mammals and has a variety of important influences on early development. I evaluated possible influences of social play behavior on the development of temperament in juvenile Belding’s ground squirrels (Urocitellus beldingi), using the caution/boldness spectrum as a measure of temperament. I disrupted the play behavior of juvenile U. beldingi by walking toward juveniles at play until the play interactions stopped. I used undisrupted juveniles and juveniles whose non-play behavior was disrupted at regular intervals as controls. Caution was measured with behavioral tests during which a human intruder walked toward a squirrel and recorded the …

Rattus Norvegicus As A Biological Detector Of Clandestine Remains And The Use Of Ultrasonic Vocalizations As A Locating Mechanism, Gabrielle M. Johnston

Master's Theses

In investigations, locating missing persons and clandestine remains are imperative. One way that first responder and police agencies can search for the remains is by using cadaver dogs as biological detectors. Cadaver dogs are typically used due to their olfactory sensitivity and ability to detect low concentrations of volatile organic compounds produced by biological remains. Cadaver dogs are typically chosen for their stamina, agility, and olfactory sensitivity. However, what is not taken into account often is the size of the animal and the expense of maintaining and training the animal. Cadaver dogs are typically large breeds that cannot fit in …

Benthic Habitat Mapping Of Mountain Top Bank Within The Northern Gulf Of Mexico Through Integrated Geophysical And Visual Data Analysis, Bethany Pertain

Master's Theses

Mesophotic coral ecosystems (MCEs) are among the seafloor ecosystems that have been poorly studied throughout the world’s oceans, but they are a vital and diverse ecosystem that should be prioritized for future mapping and ecological studies. Priority should be given to them because they possess natural, social, and economic values, and face a variety of threats, all of which, if not better understood will result in the loss of this unique ecosystem. Insights into these ecosystems, among other deep-sea environments, are lacking due to difficulty accessing them, inherent lag between data collection by an autonomous system and observation by a …

Antimicrobial Edible Coating Composed Of Chitosan Polyvinyl Alcohol And Zinc-Coated Halloysite Nanotubes, Sindhu Datla

Master's Theses

Changes in everyday activities like food packaging are required due to the global shift from a linear to a circular economy. Therefore, industrial, and institutional research centers are interested in using biodegradable materials like polyvinyl alcohol and natural raw materials like chitosan to develop novel food packaging films. Edible coating materials have been extensively researched to extend the shelf life of fruits and vegetables and reduce the risk of ingesting chemical reagents. Chitosan (CH) is widely used as a natural preservative for fruits and vegetables, but its poor mechanical, and water resistance limits its use. To improve the properties of …

Our Pearls Matter: Pcos Through The Lens Of Women Of Color And White Women, Kimberley Sheri Miles

Master's Theses

The prevalence of PCOS is increasing and due to the associated health complications, it is important to understand how higher-risk populations (women of color) cope with said condition. Analyzing current symptom management and treatment could help develop more practical resources and treatment strategies to help improve healthcare expectations and quality of life.

Ten women aged 22-38 with PCOS participated in comprehensive individual interviews with goal-oriented, semi-structured questions. A 27-question survey was also completed. Sampling was continued until data saturation was reached. The data was analyzed using the grounded theory technique which codes emergent themes with keywords and phrases which ultimately …

Porotic Hyperostosis And Cribra Orbitalia In The Adult Population Of Tipu, Miranda Hahn

Master's Theses

Tipu is a contact period Maya site in western Belize where a mission church and cemetery was established around AD 1560. An archaeological excavation in the 1980s recovered the remains of more than 550 individuals. In its unique location on the fringes of Spanish control, Tipu was the site of both acceptance of introduced cultural traits as well as rebellion against them. The series has been intensively studied over the last decades, but an analysis of anemia using more recently developed and widely accepted standards has not yet been completed. Therefore, I scored adults using the new widely accepted standards …

Validation And Reliability Of A Questionnaire That Measures Food Waste Knowledge, Attitudes, And Motivations Of Adolescents, Joanna Fung

Master's Theses

The goal of this thesis was to develop a valid and reliable questionnaire to measure food waste knowledge, attitudes, and motivations of adolescents aged 13 to 17 in the United States (U.S.). This questionnaire was created with the objective to address gaps in adolescent food waste literature and to aid the creation and refinement of targeted food waste programs and policies. Questions were specific to the home, school, and restaurant settings, as well as, behaviors related to discarding food, composting food, and food expiration. Additionally, the questionnaire sought to understand how friendships and familial relationships affect adolescent food waste-related behaviors. …

Sustainable Roots: The Environmental Genealogies Of Chicanas And Latinas, Marlene Andrade

Master's Theses

Ingenuity and tending to the land are anything but contemporary to Communities of Color (COC). Even when our communities become targets of environmental racism and experience the brunt of institution-based degradation, COC resist in a multitude of ways. While there is a plethora of documented social movements led by the Chicanx community for civil, educational, and labor rights, there is a paucity of Chicanx presence in environmental discourse. Thus, my scholar-activist commitments are to highlight Chicana/Latina herstories, epistemologies, and praxes that debunk the narrow white-heteropatriarchal male narrative in mainstream environmentalism. This dominant narrative fails to: (a) address the historical and …

The Inverse Association Between Prebiotic Consumption And Depression Status In American Adult Females, But Not The Greater Population Or In Males: Nhanes 2015-2018, Cassandra L. Boyd

Master's Theses

It is unknown if a relationship exists between prebiotic intake and depression status. Using 2015-2018 National Health and Nutrition Examination Survey cycles data, adult American estimated mean daily prebiotic intake across demographic groups, gender, and depression status were reported. Additionally, the 10 highest prebiotic content Food and Nutrient Database for Dietary Studies foods were identified. Adults (≥ 18 years) with adequate sleep and at least one day of dietary recall data were included. Participants with excessive alcohol intake, BMI ≤ 18, BMI ≥ 30, or current depression medication use were excluded. The confounding variables were inadequate sleep, unemployment, and age. …

Tree Removal From An Encroached Coastal Grassland Restores Soil Bacterial Communities Before Fungal Communities, Ka Ki Law

Master's Theses

Woody species encroachment depletes historic grassland biodiversity and degrades ecosystem function around the world. In particular, the encroaching trees can shift soil properties and microbial communities, which play critical roles in plant health and global nutrient cycling. Little is known about how removing encroached trees affects soil ecosystems, however. Over the last century, Pinus radiata and Hesperocyparis macrocarpa (non-native to the area) both encroached into coastal prairies at Rancho Corral de Tierra in California, and selected trees were removed in 2017 and 2018 to restore grassland habitats. To examine the impacts of encroachment and removal on the soil ecosystem, I …

Effects Of Hypoxia On Anti-Predator Behavior Of English Sole (Parophrys Vetulus) And Speckled Sanddabs (Citharichthys Stigmaeus), Alexandra Beatrix Stella

Master's Theses

Predator detection and successful escape behaviors are critical to the survival of juvenile fish. However, rising temperatures and increased nutrient pollution result in more frequent hypoxic events (i.e., low dissolved oxygen levels), which may impact fish health and survival. This research examined the effects of hypoxia on two flatfish species commonly found in the Elkhorn Slough, an important nursery habitat in central California. English sole and speckled sanddabs were exposed to five DO treatments ranging from 8.0 mg/L DO (normoxic) to 1.0 mg/L DO (severely hypoxic). A startle response trial was used to examine the impact of increasingly hypoxic conditions …

The Mediating Role Of Perceived Organizational Support On The Relationship Between Wellness Programs And Job Satisfaction, Andy Tran

Master's Theses

The purpose of the current study was to examine the mediating role of perceived organizational support (POS) on the relationship between wellness programs (participations and availability) and job satisfaction. A total of 83 employees participated in the study, which utilized online survey distribution. Results showed that POS fully mediated the relationship between both participation and availability of wellness programs and job satisfaction. In other words, employees who participated in a wellness program felt more supported by their organization, leading to greater job satisfaction. In addition, the results suggested that when organizations offered more wellness programs, employees were more likely to …

Building Strength Versus Getting Lean: An Analysis Of The Gendered Nature Of Fitness In Crossfit, Barre, And Personal Training, Margaret M. Jones

Master's Theses

Like many industries in contemporary society, the fitness sector is heavily gendered, andthus needs to be examined as a sector that both creates and reinforces gendered bodies. Building on previous single-method studies, I utilized a multi-methods approach of ethnography and interviews to analyze organizational and individual experiences with gender and fitness. Using West and Zimmerman’s concept of “doing gender,” I analyzed fitness organizations as a setting where gender and inequality are actively reproduced. By analyzing three fitness organizations with different gendered audiences (a barre studio, a CrossFit gym, and a personal training facility) I looked at how gender and fitness …

Decolonizing A Settler Colonial State: How Canada And The United States Have Approached Investigations Into Indigenous Boarding And Residential Schools, Holly Jacobs

Master's Theses

Indigenous boarding and residential schools were in use for over 100 years in both Canada and the United States. Grown from numerous policies aimed at assimilation, dispossession, and genocide of the Indigenous peoples of North America, these residential schools had a particular aim: to wipe away all cultural and familial ties of every individual and to replace them with beliefs and values of white settlers. Though the schools are no longer in operation, their legacy of erasure and pain continues to affect survivors, their descendants, and Indigenous communities across both nations. This thesis looks at what the federal governments of …

Central Americans At A Crossroads: Asylum Seekers’ Testimonios Of Mental Health After Detention And Family Separation, Corie E. Schwabenland Garcia

Master's Theses

Though Central American asylum seekers are presently hypervisible in the U.S. consciousness, this population continues to be inadequately understood or cared for. Discussion of this population often presents them as a helpless and damaged population, in need of saving, fixing, or shelter -- beyond their trauma, they cease to exist. This qualitative study utilizes first-person testimonio methodology to understand the psychological experiences of Central American migrants seeking asylum in the United States, the stressors they face, and the mental health support that can and should be provided to them. Their stories speak to a space of sociopolitical precarity in the …

Impacts Of The Poultry Industry In Mississippi, Sara Watts

Master's Theses

This thesis examines the impacts of the poultry industry in seven counties in the Piney Woods region of South Mississippi: Wayne, Jones, Forrest, Lamar, Jefferson Davis, Marion, and Pike. Current research indicates that the poultry industry has a significant impact on the cultures and economies of rural towns throughout the United States. There is no current research that examines the effects of the poultry industry on residents of the Piney Woods. This thesis addresses that gap in the research and contributes to current understanding of how the industry molds and impacts the lives of those intimately associated with it.

I …

A Meta-Analysis Of Antecedent Exercise On Children’S Classroom Behaviors, Chelsea Johnson

Master's Theses

The purpose of the current study was to systematically review the literature investigating the effects of antecedent aerobic exercise on students with emotional and behavioral disorders. Eighteen studies met inclusion criteria, which included single case design studies and group studies, participant age, and an exercise intervention. Tau U was used as the procedure to calculate an effect size for A-B contrasts for single case design studies and effect size ranged from small to moderate for multiple variables such as disruptive behavior and academically engaged behavior. Hedges g was used to calculate an omnibus effect size for all single case design …

Loading Rate Of Two Maximalist Shoes Compared To A Traditional Running Shoe, Elizabeth Ray

Master's Theses

The transition of running footwear to maximalist constructions has been largely spearheaded by runners’ desires for reduced risk of injury. Loading rates have been used as a measure of a shoe’s ability to attenuate vertical ground reaction forces. The purpose of this study was to determine the effect of maximalist running shoes of two differing constructions upon loading rate compared to a traditional shoe condition. A secondary purpose of this study was to investigate any interaction between footwear condition and speed on loading rate. Eight runners (4 women, 4 men; mean age = 29 yr ± 6.5 ; mean body …

Immunological Effects Of Berberine And Physical Activity In A Murine Breast Cancer Model, Janae Mudge

Master's Theses

Berberine (BBR) is a plant-derived alkaloid popularly used in a complementary context to treat splenomegaly and chronic disease states such as rheumatoid arthritis, diabetes, and cancer. Recent research has examined BBR as a regulator of lipid and glucose metabolism in association with the AMPK pathway; but little is known concerning its immunological impacts. It is also known that exercise is a potent AMPK activator exhibiting immunological benefits, but nothing is known about the combination of these complementary approaches for treating breast cancer. The purpose of this study is to determine if oral consumption of BBR when paired with physical activity …

Crisis Communication In The Ukraine-Russia Conflict: Use Of Facebook By Un Humanitarian Organizations, Rubaiya Zannat

Master's Theses

The proliferation of social media has made it incredibly simple to quickly disseminate valuable information to a large audience. Thus, numerous organizations are now heavily leveraging these social networking platforms as a means for managing their crisis responses. Through a content analysis of 355 posts concerning the Ukraine-Russia conflict made by five large UN humanitarian organizations between February and May, 2022, on their official Facebook pages, this study investigated organizational crisis communication patterns. Findings suggest that UN humanitarian organizations extensively used "threat" and "need for change" as crisis characteristics to delineate the Ukraine-Russia situation, whereas “protection of safety and security,” …

Metabolic Changes Associated With Gestational Diabetes And Weight Loss, Marykate Smith

Master's Theses

Introduction: Gestational Diabetes Mellitus (GDM) is diabetes diagnosed for the first time during pregnancy and negatively affects the mother and her child. Research suggests a multidisciplinary lifestyle intervention may aid in the reduction of GDM and its complications. Further, the use of metabolomics is needed to understand the alterations that happen prior to GDM diagnosis to reduce its recurrence.

Objective: Metabolomics analysis was conducted at baseline and 16-weeks post-intervention for women enrolled in a pre-pregnancy lifestyle intervention study to observe metabolic changes associated with GDM occurrence and weight loss.

Methodology: Sixteen samples from the parent Gestational Diabetes Prevention trial were …

Beef Bull Selection And Management Affecting Breeding Season Outcomes For California Cattle Producers On Rangelands, Megan Banwarth

Master's Theses

California’s approximately 660,000 head of beef cattle are highly dependent on range bulls used to produce offspring that can perform across the state’s diverse ecological regions. While knowledge of bull breeding behavior and the technology used to monitor cattle movement and behavior is critical to maximize conception rates and the overall efficiency in natural service sires on rangelands. Bulls need to be functional on rugged coastal landscapes, rolling foothills, deserts, and in high-elevation terrain. Few data exist that indicate factors related to selection, maintenance, and longevity of bulls used in rangeland landscapes. Objectives herein, were to assess factors influencing bull …

Dietary Protein Intakes, Distribution Patterns, And Quality In Ncaa Divsion 1 Soccer Players, Jun H. Kwon

Master's Theses

Dietary protein is required to support recovery and adaptation following exercise training. While prior research demonstrates that many athletes meet total daily protein needs, intake seems to be predominantly skewed toward the evening meal. An even distribution of protein doses throughout the course of a day is theorized to confer greater skeletal muscle anabolism compared to a skewed pattern of intake. Protein quality is also an important dietary consideration for athletes, with the amino acid leucine being the primary driver of the postprandial anabolic response. The present thesis investigates the protein consumption characteristics among a selected cohort of NCAA Division …