Digital Commons Network^™

Polycyclic Aromatic Hydrocarbons And The Microbiomes Of Two Benthic Species, Samantha Ells

Master's Theses

The presence of oil has been shown to affect the microbiomes of the water column, sediments, and organisms, both by altering the diversity and the composition of those microbial communities. If the microbiome is altered it may no longer provide benefits to its host organism, impacting its ability to survive. Thus, it is important to understand the effects of large-scale contamination events including the Deepwater Horizon oil spill. This study set out to examine the effects of oil exposure on the microbiome of two benthic species, southern flounder (Paralichthys lethostigma) and eastern oysters (Crassostrea virginica) to further understand the effects …

Population Parameter Estimation And Stable Isotope Analysis Of Gulf Sturgeon (Acipenser Oxyrinchus Desotoi) In The Pascagoula River, Alfonso Cohuo

Master's Theses

Gulf Sturgeon (GS), Acipenser oxyrinchus desotoi, are a threatened, anadromous fish species in the northern Gulf of Mexico. Their range is from the Pearl River, LA, in the west to the Suwannee River, FL, in the east with a longitudinal divide at Mobile Bay, AL, creating a western population unit (WPU) and an eastern population unit (EPU). Sturgeon belonging to the WPU exhibit lower abundances, higher mortality rates, and are overall less studied than their EPU counterparts. Notable data gaps for the WPU includes the absence of recent population parameter estimations and confirmed feeding habitat. My thesis aims to …

Spatial And Seasonal Patterns Of Above- And Belowground Vegetation Biomass And Potential Drivers In The Pascagoula River Delta, Ms, Evan Grimes

Master's Theses

Coastal wetlands provide a valuable wealth of services to the greater coastal ecosystem and human communities. However, threats such as sea level rise and conservation projects, such as freshwater diversions, have the potential to alter coastal wetlands in different ways. In this thesis, I describe the effects of inundation and nitrogen on vegetation productivity using a field-sampling approach and an in situ controlled mesocosm experiment, called a marsh organ. The West Channel of the Pascagoula River contained significantly higher belowground biomass than the East Channel, which is more anthropogenically modified. Vertical distribution of belowground biomass did not strongly vary between …

The Inclusion Of Vocal Health In The School Curriculum: A National Survey Of School-Based Speech-Language Pathologists And Speech-Language Pathology Assistants, Kate Mathews

Master's Theses

The human voice is an important tool of expression and a defining quality of self. Additionally, many occupations require, at least in part, a functioning voice for job completion (Titze et al., 1997). It is not surprising, then, that a dysfunctional voice may be disruptive and have a negative impact on a person’s quality of life. Unfortunately, disorders of voice are common, and perhaps even more so than many may realize (Bhattacharyya, 2014; Hartley et al., 2016; Roy, 2003; Roy et al., 2005). Several voice disorders, however, are preventable through the very same vocal health education means used in voice …

Speech-Language Pathologists’ Knowledge, Confidence Levels, And Practice Patterns With Mild Traumatic Brain Injury In The Schools, Jessica Munson

Master's Theses

Speech-language pathologists (SLPs) play a key role in serving children with cognitive-communication disorders in both medical and school settings. However, there remains little evidence regarding school-based SLPs’ service delivery for children following concussion or mild traumatic brain injury (mTBI) and how they rate their confidence, knowledge, and skills providing these services. The purpose of this study was to examine knowledge, confidence levels, and practice patterns for providing services to pediatric students with mTBI among school-based SLPs. A 43- item survey was developed to assess current concussion knowledge, and to allow for comparison to previous and future surveys on knowledge, confidence, …

Investigating The Utility Of Ultrasound Visual Biofeedback In Voice Instruction For Two Different Singing Styles, Kristen Smith

Master's Theses

Purpose: The purpose of this study was to investigate the potential utility of incorporating real-time visual biofeedback using ultrasonography to teach important concepts of vocal pedagogy to voice students. Exploration of innovative teaching tools, such as ultrasound visual biofeedback (U-VBF) in singing instruction, may contribute to bridging the gap between voice science and pedagogy by providing alternative ways to improve students’ kinesthetic awareness, clarify complex topics in voice physiology and acoustics, and create a common dialogue between different professionals specializing in voice. The primary research questions addressed in this study were: (a) To determine the current knowledge and attitude among …

The Well-Being Of Business Professionals Through The Participation Of Golf With Coworkers And Clients, Marisa Hisaki

Master's Theses

The purpose of this study was to explore and understand how participation of golf influences the well-being of business professionals and how organizations could incorporate activities such as golf to their management practices. Open-ended, semi-structured interviews (Kvale, 1996) were utilized in this study to explore and understand how golf influences the well-being by expressing their experience of the phenomenon of the effects of golf. Seven participants were interviewed, where three were insiders and four were outsiders. The age of the participants ranged from 23-68 years, with the average being 49.7 years. Of the seven participants, six were male and only …

Long Term Recovery From Cattle Grazing Disturbance And Climate Impacts At Capitol Reef National Park, Utah, Erin Tessens

Master's Theses

Cattle grazing has influenced the environment in the western United States since European settlement in the 1800’s. Continuous and heavy grazing on arid and semi-arid rangelands has resulted in decreased biodiversity, changes in vegetation structure, and vulnerability to exotic plant invasion. Heavy grazing has also been linked to decreased cryptobiotic soil due to trampling and susceptibility to erosion. With a lack of effective means of successful habitat restoration, there is a rising concern among land managers to maintain these intricate systems, notably under the threat of climate change. Consequently, there is a critical need to understand these system’s response to …

Noninvasive Measurement Of Arterial Compliance With A Blood Pressure Cuff Using A Surrogate Arm Bench Top Model For Oscillometric Use, Shane Wilsey

Master's Theses

A surrogate arm model was created that is capable of being used for oscillometry. This model is capable of being used as a bench top model for blood pressure cuff devices. The arm consists of endplates and internal supports that are 3D printed with ABS, a silicone rubber outer sleeve, and interchangeable arteries made from two silicone rubber strips glued together at the edges. The interchangeable arteries have varying compliances that can be used as different inputs for oscillometric testing. A process was established to measure the artery compliances with a curve fit correlation of 0.95. However, testing revealed that …

Comparison Of Two Advanced Oxidation Processes For Their Production Of Hydroxyl Radicals And Evaluation Of A Uv/Ozone Aop At Varying Uv Fluence For Treating Diclofenac, Alexandra Cass

Master's Theses

This study explores the efficacy of two advanced oxidation processes for generation of hydroxyl radicals to promote degradation of emerging contaminants. Drought and water shortage have become pressing issues caused by our world’s changing climate. Water reclamation and reuse are increasingly important options for relieving this water stress. Water reuse runs the risk of reintroducing recalcitrant compounds that can accumulate in our bodies and environment. Advanced treatment methods that degrade these compounds are vital to protect our health and the health of the environment while providing necessary water resources. Advanced oxidation processes (AOPs) have shown great promise for removing recalcitrant …

Depressive Symptoms And Marijuana Outcomes In College Students: The Mediating Role Of Protective Behavioral Strategies For Marijuana, Nicholas Militello

Master's Theses

The present study evaluated the sequentially mediating role of protective behavioral strategies for marijuana (PBSM) and marijuana use frequency on the relationships depressive symptoms had with hazardous marijuana use and marijuana-related negative consequences in college students Participants were 338 (50.3% male) undergraduate college students age 18 to 25 (M = 22.10; SD = 1.97) who reported marijuana use in the past 30 days. Participants reported their gender and completed measures of depressive symptoms, PBSM use, marijuana use frequency, marijuana-related negative consequences, and hazardous marijuana use through an online survey from a 2018 project. Depressive symptoms were positively associated with …

An Analysis Of Nobuo Uematsu’S Linear Structures: The Score Of Final Fantasy Vi’S Opera, Daniel Comeaux

Master's Theses

Nobuo Uematsu, the composer of the first nine entries in the Final Fantasy video game series, creates sophisticated music in the operatic section of Final Fantasy VI. This thesis will provide a linear analysis of the music, borrowing from contrapuntal techniques of important theorists such as Heinrich Schenker and Paul Hindemith. The analysis will explain how some linear progressions play guiding roles within the music while others although heard, may not be as important. Furthermore, the most important linear structures will be shown to support the tonal identity of a movement, while important end points coincide with junctures in the …

The Shortcomings Of Maize: Using Tipu To Assess Maize Consumption And Its Impact On Stature And Limb Proportions Among The Maya, Peter Mercier

Master's Theses

A reliance on maize among the ancient and modern Maya has been reasoned to cause short statures and short legs compared to overall height. The goal of this study was to test this proposition using a sample of contact period Maya from the site of Tipu in western Belize. Long bone length data from 100 individuals were compared to that from two other prehistoric maize agriculturalist societies: the Schild site in Illinois and Pecos Pueblo in New Mexico.

Four hypotheses were tested: 1) Tipu would be the shortest, 2) Tipu would have the shortest femora relative to tibiae, 3) Tipu …

Determining Subgroups That Exist Among Us Firearm Owners, Allison Eileen Bond

Master's Theses

Objective: The present study sought to identify and verify unique classes of firearm owners that exist within the United States (US) and to determine the sources that each class deemed credible to discuss safe firearm storage for suicide prevention. Methods: The study is composed of three parts, each with its own unique sample. Part 1 (N = 1,018) utilizes a nationally representative sample of firearm owners. Part 2 (N = 1,064) consists of firearm owners from Mississippi, Minnesota, and New Jersey. Lastly, Part 3 examined the samples from Mississippi (n = 308), Minnesota (n = 379), …

Analyzing The Consistency Of Scoring Porotic Hyperostosis From 3d Scans, Carson Rouse

Master's Theses

The use of 3D scans is becoming more and more common in the field of bioarchaeology. They alleviate the need to travel, allow for larger sample sizes, and can help preserve bones with pathologies on them which make them more fragile. Though there are major benefits with using 3D scanning of human remains, there is a lack of studies which examine whether or not traditional pathology scoring methods can be used to consistently gather the same data from these 3D scans. This project examines how consistently six researchers of varying experience levels scored porotic hyperostosis from 25 3D scans on …

Contextualizing A Crisis: Examining Michigan State University Press Releases And The Larry Nassar Scandal, Courtney Robinson

Master's Theses

The purpose of this study was to conduct a contextual analysis of press releases published by Michigan State University following a 2016 scandal that accused long-term physician Larry Nassar of sexually abusing more than 250 young women and girls under the guise of medical care. Specifically, the researcher was concerned with the image repair strategies employed by Michigan State as it attempted to respond to accusations that university personnel were aware of Nassar’s actions and had failed to act. The institution found itself responding to a series of distinct, yet related, crises, which were documented in a series of press …

Characterization Of The Bacterial Microbiome Of Exotic Tick Species Collected From Migratory Birds, Raima Sen

Master's Theses

Migratory birds often serve as natural/accidental hosts to ectoparasites like ticks (predominantly immature stages) and are known reservoirs of several pathogens transmitted by ticks. Parasitizing these birds, exotic tick species often hitch rides to non-native ecological niches, bringing along tick-borne pathogens. This study aims to profile the bacteriome of exotic tick species flying in and out of the US from the Neo-tropical South. A total of 421 tick samples comprised of several different tick species were collected off migratory songbirds at sites north of the Gulf of Mexico (Louisiana State). A 16S rRNA metagenomic multiplexed sequencing approach was used to …

Comparison Of Supported Liquid Extraction And Solid Phase Extraction Of Methamphetamine From Urine And Method Validation By Gas Chromatography-Mass Spectrometry, Taylor Hood

Master's Theses

Applications of SLE (supported liquid extraction) is a relatively new extraction technique that is not widely used in forensic toxicology. SLE is also easier and less time consuming than traditional LLE (liquid-liquid extraction) and SPE (Solid phase extraction). This work will compare the extraction efficiencies between SLE and SPE for methamphetamine from urine with detection and quantitation using GC-MS (gas chromatography- mass spectrometry). The SLE cartridges provide better analyte recoveries, eliminate emulsion formation, and allow for shorter processing time than other extraction techniques. The SPE cartridges used have a mixed-mode non-polar/strong cation exchange retention mechanism to extract basic analytes like …

Sedimentology And Shallow Groundwater Responses Of A Coastal Marsh Along A Salinity Gradient: A Case Study In Grand Bay National Estuarine Research Reserve, Mississippi, James Thompson

Master's Theses

Climate change and relative sea level rise is resulting in saltwater intrusion and inundation of coastal marshes. This study investigates factors affecting marsh hydrology, including sediment composition, seasonal variability, and coastal storms in Grand Bay National Estuarine Research Reserve (NERR) near Pascagoula, Mississippi. Analysis of sediment includes color, organic matter, carbonate, magnetic susceptibility, and particle size. Shallow groundwater hydrologic trends between Summer 2015 and Fall 2016 are established along a salinity gradient at four sites using water levels, temperature, and conductivity monitored at the surface and in piezometers at depths of 0.75m, 1.5m, and 2.25m.

Sediment analysis indicates reducing conditions …

Design, Synthesis, And Characterization Of Glycodendrons Through Small Molecule And Linear Polymer Models, Molly Jones

Master's Theses

This thesis focuses on the design, synthesis, and characterization of glycopolymer-dendron thiol-ene coupling reactions with the long-term goal of increasing biocompatibility of near infrared (NIR) fluorophores for bioimaging applications. A design of experiments was used with small molecule model compounds to determine the parameters for successful thiol-ene click reactions that would lead to success of more complicated amphipathic polymer-polymer coupling reactions. The first chapter provides an introductory overview of the importance and applications of glycopolymers, bioimaging, and Janus dendrimersomes. The second chapter presents the synthetic methods for creating a glucose-functionalized glycopolymer with an acrylamide backbone, the exploration of thiol-ene coupling …

Comparison Of Animal Versus Plant-Based Protein Supplementation To Nitrogen Balance In Female College Students, Adeline Maykish

Master's Theses

Plant-based diets have become popular in the past 10 years, with approximately 11% of Americans self-identifying as vegan or vegetarian, and many others trying to reduce meat consumption. Due to this increasing interest, the plant-based food market has exploded with several novel innovative products serving as alternatives to animal-based products. One such example is almond protein powder, a fairly new protein supplement created as an alternative to whey protein. A number of studies have compared animal-based protein supplementation, such as whey to plant-based supplementation, such as soy, on muscle protein synthesis and skeletal muscle preservation. Due to the novelty of …

The Effects Of Parent-Implemented Demanded Eye Contact As A Component Of Eid On Child Compliance, Halley Claire Blanchard

Master's Theses

Effective instruction delivery (EID) is an eight-step strategy that has been shown to be effective at increasing child compliance across classroom and clinical settings (Everett et al., 2005; Ford, 1998; Mandal et al., 2000; Scoggins, 2005). Component analyses investigating the relative importance of eye contact components of EID have obtained mixed results in clinical settings (Everett et al., 2005; Faciane, 2001; Faciane, 2004). Additionally, applied studies evaluating the effectiveness and treatment integrity of interventions delivered through telehealth have been largely behavior-analytic in nature (Lee et al., 2015; Seuss et al., 2013; Stich & Samaha, 2015; Wainer & Ingersoll, 2014). The …

“My Bruises Are Inward:” A Study Of Mental Trauma In The American Civil War, Cody Turnbaugh

Master's Theses

War is traumatic. Since the American Psychiatric Association first recognized post-traumatic stress disorder (PTSD) in 1980, living veterans of combat have been diagnosed at an alarmingly high rate. However, mental trauma related diagnoses have existed for centuries, including several that were identified around the time of the American Civil War. This thesis argues that Civil War soldiers experienced mental trauma related to their military service. It does so through three lenses. Focused on the mental trauma among Northern veterans, this study investigates in particular the relationship between mental trauma and socioeconomic status. It analyzes the experiences of both white and …

Women Under Colonial Coverture: Divorce, Property Rights, And Inheritance In Early Massachusetts, Sarah Anne Hogue

Master's Theses

This thesis focuses on the evolution of women's legal rights - property, inheritance, and divorce- in colonial Massachusetts between 1630 and 1690. The project explores how and to what extent the legal doctrine of coverture- which severely limited married women’s legal rights- functioned in the Massachusetts Bay Colony under its Puritan government. This study examines how coverture directly impacted women’s property and divorce rights in the courts of law in the colonial Massachusetts legal system. It uses primary documents, such as official court records and Puritan sermons, to examine women’s legal rights in that colony through the intersecting lenses of …

Subadult Cortical Bone Analysis As An Indicator Of Childhood Health Status Among The Tipu Maya Population, Jaime Thomas

Master's Theses

This thesis explores juvenile health at the contact Maya site of Tipu in western Belize. The associated cemetery was excavated and provided a large and well-preserved population. Although Tipu has been a focus of many studies, few studies have focused on subadults and none on their cortical development, which can allow insight into access to necessary nutritional resources.

Some 108 femora belonging to individuals aged birth to 13 years with femora previously sectioned at midshaft provided the sample. External dimensions taken included diaphyseal length, circumference, medial-lateral diameter and anterior-posterior diameter. Additionally, cortical thickness was measured at four points, and 95 …

A Meta-Analysis Of Youth Gender Prejudice Interventions, Molly Ackerman-Pulliam

Master's Theses

This meta-analysis of youth gender prejudice interventions provides an estimate of the overall effectiveness of empirical efforts to reduce expressions of gender prejudice or promote gender egalitarian attitudes among child and adolescent samples. Studies eligible for inclusion were quasi- or fully-experimental designs with child and adolescent participants ranging from 5-17 years of age that quantitatively measured gender prejudice reduction or increases in an egalitarian view of gender. The final sample of 31 studies were located via database searches using both general and specific keywords and Boolean operators. Effect sizes for measures of gender prejudice were calculated using Cohen’s d as …

Urban Agroecology For Food Sovereignty And Biodiversity: Are Urban Community Farms Or Gardens More Effective?, Heidi L. Giancola

Master's Theses

Industrial agriculture is accurately criticized for eliminating biodiversity and destroying food sovereignty. Urban agroecosystems, usually individual plots in community gardens, are promoted to restore ecological services and equity to food systems. Recently, collectively tended urban community farms have developed, with explicit social justice goals. This study directly contrasts the effectiveness of the urban community farm and garden models. Spatial analysis is used to confirm that community farms enhance geographic access for healthy food priority areas compared to gardens in the San Francisco bay area. An online survey of farm staff and gardeners from Marin to Santa Clara County resulted in …

Exploring Racial Injustice Conversations In Intergenerational Asian American Households Following The Death Of George Floyd: A Case Study, Jasmine Nicole Lopez Itliong

Master's Theses

This study explores intergenerational racial injustice conversations in Asian American households by focusing on conversations that occurred following the death of George Floyd. Asian American historical oppression, Eastern versus Western ideologies, and intergenerational communication conflict present several challenges for navigating conversations about racial injustice among family members. Given the important role of family in facilitating identity and fostering support, this study also considers the implications of mental health and well-being of Asian Americans associated with their ability to communicate about racial injustice. Informed by Racial Triangulation Theory and Family Communication Patterns Theory, four in-depth interviews were conducted, along with a …

How Do You Handle That? How Graduate Teaching Associates Engage In Sensemaking Practices To Overcome Challenges, Laura Bell

Master's Theses

The aim of this study is to explore the experiences of Graduate Teaching Associates (GTAs) and how they communicate about the challenges they face. Initially, I examined how GTAs describe difficult experiences they have during and outside of the classes that they teach or help facilitate. Then, I investigated how GTAs describe the way they recover readily from these challenging situations and continue to learn from them through the process of sensemaking. Drawing on data from in-depth interviews with 13 GTAs from six different departments at San Jose State University, a thematic analysis was conducted to connect the information shared …

Distribution And Habitat Use Of The Santa Clara County Population Of Red-Bellied Newts (Taricha Rivularis), Joie De Leon

Master's Theses

Anthropogenically-induced habitat loss and degradation have increased extinction rates in amphibians worldwide, yet little is known about many remaining populations. A disjunct population of red-bellied newt (Taricha rivularis), an endemic California species, was discovered 130 km south of its previously known range. Here I document the range and breeding phenology of this population and contrast its mesohabitat use with that of other sympatric newts. Surveys across two years suggest that the southern population of T. rivularis is confined to a 1 km segment of Stevens Creek, and the population follows an early-March to late-April migratory breeding pattern, similar to one …