Digital Commons Network^™

On Creating Bog Bodies: The Effects Of Ph Value On Dna Decomposition In A Bog Environment, Gabrielle B. Giangreco

Graduate Student Theses, Dissertations, & Professional Papers

Bog bodies have been a consistent area of interest in both archaeology and biological anthropology, due to their high rates of physical preservation. While there are many physical analyses that have been done on these remains, DNA analysis is lacking. Most studies focus on changes to the remains themselves or attempt to determine why they were placed in a bog. This study aims to examine the effects of pH level on the breakdown of DNA on remains placed inside a bog along with any larger differences in the preservation of the remains. The results of this study seem to point …

Evaluating The Accuracy Of Stature Estimation From Tibial Radiographs Using Known And Newly Developed Regression Formulas, Atlantis Kae Baron

Graduate Student Theses, Dissertations, & Professional Papers

This study assesses the accuracy of stature estimation from tibial radiographs using digital measurements as an alternative to traditional osteometric tools. Stature estimation is crucial in forensic anthropology for identifying individuals, especially cases involving skeletal remains. Traditional methods rely on physical measurements and established regression formulas, such as those by Trotter & Gleser (1958).

This research analyzed tibial radiographs from the Forensic Anthropology Skeletal Trauma (FAST) database with ImageJ software to measure tibial lengths digitally. The sample included 59 tibiae, with measurements compared against three regression formulas; Trotter & Gleser (1958), Simon et al. (2023), and a new regression formula …

Juvenile Arthritis, Body Image, And Disordered Eating: An Exploration Of Experiences, Katelyn Ann Melcher

Graduate Student Theses, Dissertations, & Professional Papers

This qualitative study examined eating and body experiences among youth with juvenile arthritis (JA). JA, an autoimmune condition affecting nearly 300,000 youth in the United States, poses significant challenges including chronic pain, disability, and psychological concerns such as anxiety and depression. Adolescence is a critical developmental time for body image and disordered eating concerns to emerge. However, no qualitative research has explored the interactions of JA, body image, and eating behaviors among youth. Twelve youth with a JA diagnosis participated in a semistructured qualitative interview examining their experiences with JA and their feelings about their bodies and food as they …

Taking God's Country: The University Of Montana, Morton J. Elrod, And Allotment On The Flathead Reservation, Dylan Tate Yonce

Graduate Student Theses, Dissertations, & Professional Papers

In the early decades of the twentieth century, the University of Montana (UM) developed from a small frontier college into an influential research institution. During its maturation process, the University relied on the acquisition of land to expand. In addition to its main campus in Missoula, the university sought land for research and recreation. When Congress passed the Flathead Allotment Act (1904), UM became one of many non-Native beneficiaries of federal land dispossession policy in the United States. Existing scholarship has largely homed in on “land grant” universities established through the Morrill Act (1862), which effectively dispossessed ten million acres …

Feminine Felons: Violent Offenders' Intersectional Experiences In Twentieth-Century Montana, Cassidy Ann Vander Voort

Graduate Student Theses, Dissertations, & Professional Papers

This paper explores the treatment of violent female offenders in Montana in both the media and prison system from 1900-1960. Women of all races faced gender discrimination from both the carceral system and popular media. Local newspapers sensationalized crimes committed by female offenders, portraying them as women who lived outside of the expectations of womanhood in the twentieth century. Newspapers and courts placed women into two categories: “mad/sad” female offenders, who received forgiveness for their crimes; or unforgivable, “bad” offenders. Crime did not determine these categorizations; instead, gender expectations of the white middle class shaped female criminals’ treatment. If these …

College Athlete Workload Management To Improve Performance, Brody Reid

Graduate Student Theses, Dissertations, & Professional Papers

Load management is an often used and misunderstood term within the realm of sport science. It has been described as the reason behind numerous soft tissue injuries as well as being the reason star athletes sit on the bench for games. This review aims to synthesize the existing literature regarding the workload management paradox within sport. Seminal work in this topic has been gathered mostly by Tim Gabbett in the paper “The Injury Prevention Paradox” where a relationship between fitness gain and fatigue accrued is outlined. This theory was first proposed by Roger Bannister in 1975. This paper …

Love At First Words: A Communication Competency Approach To Romantic Relationship Initiation, Grace E. Wiegand

Graduate Student Theses, Dissertations, & Professional Papers

Initial interactions are essential to romantic relationship formation, and both parties must desire a second interaction after an initial encounter for the relationship to advance. Many studies have explored the communication styles and tactics that are effective in a person desiring a second interaction from a dating initiation scenario. However, existing research has yet to explain why some communication strategies do or do not result in second interactions. The current study seeks to examine this phenomenon further, testing the extent to which perceived partner communication competence influences a person to want to see another again after an initial interaction. In …

Testing The Hefner (2009) Ancestry/Population Affinity Estimation Method On Japanese Bioarchaeological Populations And Observing Changes In Trait Frequency Distribution Over Time, Tristan Charnock Hershberger

Graduate Student Theses, Dissertations, & Professional Papers

Population affinity is the most controversial aspect of the biological profile to assess for forensic anthropologists due to an array of factors, both historical and in application. This has led to many calls for the abandonment of this type of estimation, however, many have challenged this by arguing for the category’s importance in the death investigation process. While the abandonment of population affinity estimation is unlikely, that does not mean that current approaches to population assessment should not be reassessed. This study attempts to reevaluate the category by applying an evolutionary lens to population affinity assessment. This project applied a …

Better Together: Leveraging Existing Research To Evaluate Population Trends, Habitat Selection, And Species Interactions Of Mesocarnivores, Jordan Lee Heiman

Graduate Student Theses, Dissertations, & Professional Papers

Whether from human impacts, climate change, or extreme fires, landscapes around the world are rapidly changing (Foley et al. 2005, Grimm et al. 2008, Bowman et al. 2020). As these landscapes change, it is clear that many ecosystems and species are being negatively affected (Laliberte and Ripple 2004, Butchart et al. 2010, Freeman et al. 2018, Li et al. 2022). With an expanding number of species facing extinction risks, it is critical for agencies to know when and where to focus their limited resources and conservation efforts (Martin et al. 2012, Auerbach et al. 2014, Bal et al. 2018). To …

The Filament, Elena Skibicki

Graduate Student Theses, Dissertations, & Professional Papers

The Filament weaves together the results of a neurodivergent person exploring their universe, in all its harrowing beauty and familiar tragedy. The speaker traverses oceans and thunderstorms, wades through the swampy shallows of their high school, participates in a pharmaceutical supply chain and its subsequent ransacking, floats through altered mental states, and retells legends, spanning many styles while still using the lyric “I”. Scrying into a nebulous future, the speaker returns with stories of the planet and its people, and the kind of world they want to build.

The speaker exposes their ghosts throughout the collection, hoping that the adage, …

Comparative Bioinformatic Methodologies In Paleogenetic Pathogen Identification In The Casas Grandes, Victoria Lynne Giovannangelo

Graduate Student Theses, Dissertations, & Professional Papers

The application of metagenomic tools to further elucidate ancient DNA (aDNA) holds promise in paleopathology, particularly for inferring disease patterns in ancient populations, especially in those that are understudied. This study conducts a comparative analysis of the efficacy of taxonomic pipelines--Kraken 2, HOPS/MALT, and HAYSTAC--in detecting pathogens within highly degraded aDNA samples extracted from 22 Medio Period Paquimé individuals from the Casas Grandes archaeological site in Northwest Mexico. The taxonomic results from the pipelines are compared with contamination detection program mapDamage, although concerns arose about the latter program’s ability to work with prokaryotes. Additionally, the findings are compared against prior …

A Novel Positive Allosteric Modulator Of Glun1/3 Nmda Receptors, Samuel A. Galindo

Graduate Student Theses, Dissertations, & Professional Papers

The GluN3-containing (GluN1/3) N-methyl-D-aspartate (NMDA) receptors are glycine activated ligand-gated ion channels that are members of the family of excitatory ionotropic glutamate receptors. Compared to the glycine/glutamate-activated GluN2- containing NMDA receptors (GluN1/2), which have been extensively studied, the GluN1/3 receptors are poorly understood, but are implicated in neuronal processes related to synaptic maturation and plasticity. GluN1/3 receptors are also implicated in a variety of neurological diseases. In addition to their poor understanding, we lack proper pharmacological tools for the study and modulation of these GluN1/3 receptors. In this study, we evaluate the activity and mechanism of action for AIMS-129 as …

Umfc #132: A Comprehensive Forensic Case Report, Allison Paige Mitchell

Graduate Student Theses, Dissertations, & Professional Papers

This case report of an individual designated as University of Montana Forensic Case 132 (UMFC 132) serves to partially fulfill the requirements for the Master of Arts (MA) degree in Forensic and Biological Anthropology. UMFC 132 is a complete human skeleton, used as part of the teaching collection in the University of Montana Forensic Anthropology Laboratory. The minimum number of individuals (MNI) of UMFC 132 is 1. The analysis of UMFC 132 was conducted according to bioarchaeological and forensic anthropological standards of skeletal assessment. UMFC 132 was estimated to be a mid-adult, between the ages of [30-40 years] of age …

The Impact Of Ambient Air Quality On Asthma Outcomes In California, Abigail Obour

Graduate Student Theses, Dissertations, & Professional Papers

This study investigates the relationship between ambient air quality and asthma-related health outcomes in California, focusing on emergency department visits and hospitalizations from 2005 to 2022. Despite California’s strict air quality standards, individuals still face significant pollution challenges contributing to poor respiratory health, particularly among vulnerable populations. Therefore, this study looks at how fine particulate matter (PM2.5) affects asthma outcomes using panel data from 37 counties. A fixed effects regression model is employed to control for unobserved heterogeneities that are constant over time but vary across individual counties, ensuring robust estimates of the impact of pollution on health outcomes. This …

Mitochondrial Dna Diversity In West Mexico, Emma Zoiss

Graduate Student Theses, Dissertations, & Professional Papers

The long-standing movement of people, exchange of goods, and transmission of cultural traits are imprinted not only in the archaeological record but also within the genomes of individuals, making ancient DNA a powerful tool for uncovering past interactions and population dynamics. Despite attempts at systematic research, we are still missing critical information about pre-Columbian Mesoamerican populations in the Aztatlán region. This research will focus on those individuals recovered from archaeological sites located both in the highlands of the Lake Chapala Basin, as well as the coast of the Aztatlán core region. The integration of genetics into our understanding of the …

An Acceptable Time, Crystal Mccallie

Graduate Student Theses, Dissertations, & Professional Papers

This scholarly work is my interpretation of the art in the exhibition, An Acceptable Time, which ecompasses a diversity of media that varies as much in material and process as the span of my life as mother, a steward of the domestic home, and a spiritual child-at-heart myself. At the center of the work is a contemplative beauty inviting the viewer to linger with the art and reflect upon the echoes of the past as they might affect the present. The formal delivery of illustrative realism, a mirage of pattern, and abstract layering draws out major themes of memory, nostalgia, …

Understanding The Factors That Influence University Environment: Gender Differences In Perceptions Of Female And Male Stem Graduate Students., Rachel Robinson

Graduate Student Theses, Dissertations, & Professional Papers

Despite increasing female representation in higher education, women remain underrepresented in STEM (science, technology, engineering, and mathematics) fields. This thesis investigates gendered perceptions of university environment among STEM graduate students, focusing on the role of faculty-student interaction as a form of social capital. The survey was developed and administered with Qualtrics Online Survey Software by members of the Social Science Research Group of the Pacific Northwest Circles of Success: Mentoring Opportunities in STEM. All graduate students in the participating universities pursuing master’s and doctoral degrees in a National Science Foundation STEM recognized program were eligible to complete the survey. Using …

Fungal Symbionts As Hidden Architects Of Forest Health: From Tree Immunity To Beetle Nutrition, Lorinda Sabin Bullington

Graduate Student Theses, Dissertations, & Professional Papers

Symbioses of fungi with trees and insects play outsized roles in forest ecosystems, influencing tree growth, defense, physiology, and nutrient cycling. While their functional contributions are widely recognized, they remain poorly understood. I integrate findings from three studies examining fungal interactions with conifers and with bark beetles to highlight their significance in tree resistance to disease, nutrient redistribution within the tree, and forest ecology.

First, I demonstrate that foliar fungal endophytes and ectomycorrhizal fungi, together and independently, can enhance resistance in Pinus monticola seedlings against Cronartium ribicola, the pathogen responsible for white pine blister rust. Symbiont inoculation induced host terpene …

Acl Prevention Programming For Female Athletes, Julia Korklewski

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Tenaciously Curious, Joe Mark Taylor

Graduate Student Theses, Dissertations, & Professional Papers

In this thesis paper, I will outline the journey I’ve taken throughout my graduate studies at the University of Montana and how it has culminated in my thesis exhibition, Tenaciously Curious. I’ll begin with an Introduction that speaks to the importance of finding ways to connect to nature, and the benefits we gain by recognizing our bodies as extensions of the organic world.

In the following section, Influences, Theory and Lineage, I’ll explore the themes that drive my research, highlight artists who have influenced my work, and discuss why this inquiry feels vital within our contemporary moment.

In the section …

Penta Ef-Hand Protein Alg-2 Regulates Copii Activity At Eres In Response To Calcium Signaling, Jacob Ryan Lapka

Graduate Student Theses, Dissertations, & Professional Papers

Intracellular protein trafficking is critical for maintaining cellular homeostasis, relying on highly regulated vesicular transport pathways originating from the endoplasmic reticulum (ER). Central to this process is the COPII coat complex, which governs cargo export at ER exit sites (ERES) by selectively packaging secretory proteins into transport vesicles. Recent studies highlight the regulatory role of calcium (Ca²⁺) signaling at ERES, where the Ca²⁺-binding Penta EF-hand proteins ALG-2 and peflin modulate COPII coat dynamics and cargo sorting in a context-dependent manner. In Chapter 2, we show that knockdown of the Inositol 1,4,5-trisphosphate receptor-3 (IP3R-3) in normal rat …

Examining Coinfections With Human Cytomegalovirus, Christopher Samuel Peterson

Graduate Student Theses, Dissertations, & Professional Papers

Human cytomegalovirus (HCMV) is the largest of any human virus, both physically at up to 300 nm in diameter, and as a genome, with its 235 kbp DNA genome with at least 165 open reading frames. It is also the number 1 non-genetic cause of birth defects and has a global prevalence rate of just over 80%. Despite these characteristics, it is not as well known to the general public as some of the other human herpesviruses, such as herpes simplex or varicella-zoster virus. Like other herpesviruses, HCMV can establish latency, leading to a lifelong infection for its host with …

Investigating Algal Response To Scouring Flow And Nutrient Interactions In The Clark Fork River, Montana, Hannah E. Adkins

Graduate Student Theses, Dissertations, & Professional Papers

Algal communities play a vital role in aquatic ecosystems, but excessive growth can degrade water quality, disrupt ecosystem function, and hinder beneficial uses (Banish, 2017; Davie, 2012; Wang et al., 2007; Wurtsbaugh et al., 2019). Nutrient enrichment, particularly elevated nitrogen and phosphorus concentrations, is a well-established driver of algal proliferation in lentic systems. However, these nutrient–algae relationships are less predictable in lotic systems, where the dynamic effects of flow can modify or obscure these patterns (Bennet et al., 2017; Biggs and Close, 1989; Dodds et al., 2002). The Clark Fork River in western Montana has long struggled with nuisance algal …

Positive Allosteric Modulation Of Glun1/Glun3 Nmda Receptors, Mia Ruth Johns

Graduate Student Theses, Dissertations, & Professional Papers

N-methyl-D-aspartate (NMDA) receptors are ionotropic glutamate receptors that mediate excitatory neurotransmission in the central nervous system (CNS) where they play critical roles in normal and pathological brain functions and neurodevelopment. While the glutamate/glycineactivated GluN2-containing NMDA receptors (GluN1/GluN2) have been extensively studied, the physiological roles and pharmacology of glycine-activated GluN3-containing receptors (GluN1/GluN3) remain less understood. Although GluN1/GluN3 receptors exhibit unique functional properties and play distinct roles in neuronal development and synapse maturation, studies of their precise roles in neurophysiology and circuit function are impeded by limited availability of GluN3-selective pharmacological tools. This study describes UCM-A86, a novel GluN3-selective positive allosteric …

Community Resilience Factors For Gsm Individuals: Considering The Roles Of Transgender Identity And Age, Benny Ilac

Graduate Student Theses, Dissertations, & Professional Papers

Gender and sexual minority (GSM) individuals face a variety of health disparities, including increased rates of depression, anxiety, and substance use. One explanation for the presence of these health disparities is the minority stress model, which suggests that proximal (internal) and distal (external) experiences of minority stressors contribute to poorer health outcomes in GSM populations. An important yet understudied component of this model is resilience, which acts as buffer against the negative impacts of minority stressors. Focus on community resilience factors, as opposed to individual resilience factors, may be particularly important in GSM populations in reducing the onus placed on …

Nonactin And Salinomycin Fragment Scaffold Derived Synthesis For Antibiotic Drug Discovery, Evelyn Amelia Schwartz

Graduate Student Theses, Dissertations, & Professional Papers

Antibacterial drug discovery is an important necessity across all medical practices in both treatment and prevention of antimicrobial resistance. Infections with antimicrobial resistant pathogens are likely to increase over the years, and new classes of antibiotics can address this issue directly. Traditional screening of natural product libraries unfortunately has exhausted these resourceful compounds so that few easily accessible medical drug candidates remain. Natural products have often been recognized for their unique and complex structures that are attributed to their biological activity. This esteemed trait also is linked to cytotoxic activity and difficult synthetic modifications. A fragment of the natural product …

Social, Ecological, And Anthropogenic Drivers Of Gray Wolf Vital Rates In Yellowstone National Park, Brenna Jo Cassidy

Graduate Student Theses, Dissertations, & Professional Papers

Populations of animals can be regulated by many factors, including food availability, anthropogenic influences, and social dynamics. Survival of adults and juveniles is one mechanism of population regulation, and these life stages can be influenced by different ecological pressures. In this dissertation, I investigate the ecological, anthropogenic, and social drivers of transboundary gray wolf (Canis lupus) vital rates in and around Yellowstone National Park. First, I evaluate the effect of variable harvest pressure on wolf survival and test whether anthropogenic mortality is compensatory or additive. Theory predicts that under densitydependent conditions, anthropogenic mortality should be offset by a corresponding reduction …

Genomics Of Adaptation To Yellowstone’S Geothermal Mosaic In The Yellow Monkeyflower Mimulus Guttatus, Colette Sevier Berg

Graduate Student Theses, Dissertations, & Professional Papers

The push and pull between recombination and selection shapes the structure of adaptive genomic variation. By mapping the genetic architecture and genetic basis of traits, we can test theoretical predictions about the nature of adaptation on the landscape. Furthermore, investigating the genetics of repeated evolutionary transitions sheds light on the nature of parallel evolution: are adaptations constrained at the molecular level, or are there many genetic paths to the same phenotype? In this dissertation I explore the genetic and phenotypic variation in the yellow monkeyflower Mimulus guttatus, which occupies Yellowstone National Park’s complex geothermal mosaic. In Chapter 1, I identify …

Methods To Improve Efficiency, Sensitivity, And Selectivity Of Sequence Similarity Search, Daniel Olson

Graduate Student Theses, Dissertations, & Professional Papers

The rapid growth of biological sequence data presents significant challenges for bioinformatic analysis. A cornerstone of this analysis, sequence similarity search, is hampered by three main obstacles: sensitivity in detecting distant evolutionary relationships, selectivity in distinguishing true homology from spurious similarity caused by features like tandem repeats, and scalability to handle massive databases. This dissertation introduces two novel computational tools, ULTRA and NEAR, that address these challenges to improve the efficiency, sensitivity, and selectivity of sequence similarity search. Part I of this dissertation addresses the problem of selectivity by focusing on tandem repeats, a common source of false-positive results in …

Investigating Non-Invasive Survey Methods And Building A Predictive Occupancy Model For Harlequin Ducks (Histrionicus Histrionicus) In Western Montana And Northern Idaho, Holli Ann Holmes

Graduate Student Theses, Dissertations, & Professional Papers

Harlequin Ducks (Histrionicus histrionicus; HADU) are an imperiled sea duck that breeds along white-water mountain streams, but challenges in surveying them have made it difficult to understand population trends in their Northern Rocky Mountain breeding population. In this study we had two objectives: (1) evaluate non-invasive survey methods for detecting HADU on their breeding grounds in Western Montana and Northern Idaho, and (2) develop an occupancy model to predict potential breeding stream use for HADU across the region. First, we assessed the efficacy of ground-based foot surveys (GBS), environmental DNA (eDNA), and camera traps to detect breeding HADU during …