Digital Commons Network^™

Association Between Baseline Field Test Performance And Match Physical Performance In D1 Female Soccer Players, Benito Joel Cecenas

Graduate Student Theses, Dissertations, & Professional Papers

Background: Fitness testing is utilized by numerous soccer programs as a means for evaluation of player physical capacity. Previous literature has shown Yo-Yo Intermittent Recovery Test Level 1 (YYIR1) performance is associated with match physical performance in elite adult and youth soccer players. Until now, these relationships have not been investigated in the collegiate soccer setting, despite the YYIR1 being regularly utilized at the collegiate level to determine eligibility for competition, influence playing time, and to assess adaptation to training programs. For these reasons the association between the YYIR1 and match physical performance was investigated in women’s collegiate soccer.

Aims: …

Generation, Characterization And Reactivity Of Cobalt Diamond Core And Cobalt Peroxo Complexes, Yan Li

Graduate Student Theses, Dissertations, & Professional Papers

The development of efficient and low-cost technologies that convert hydrocarbons, including methane, to liquid fuels through controlled functionalization of its inert C–H bond is a fundamental challenge. Also, the activation of carbon−hydrogen (C−H) bonds is the first step of functionalizing inert hydrocarbons. This transformation is a key step in many biological and synthetic processes. One representative example inspired by nature is the metalloenzyme called soluble methane monooxygenase (sMMO), a nonheme dinuclear iron-dependent enzyme that catalyzes the hydroxylation of the strong C–H bond of methane (bond dissociation energy BDE = 105 kcal/mol) using O2 as the oxidant. The catalytic cycle of …

The Resilience Of American Indian And Alaska Native Older Adults In The Context Of Major Health Disparities In Cardiovascular Disease, Diabetes, Asthma, And Arthritis: A Narrative Review, Ennis Frank Vaile

Graduate Student Theses, Dissertations, & Professional Papers

Background: Multiple major health disparities have been documented in Indian Country, including cardiovascular disease (Howard et al., 1999), diabetes (Acton et al., 2003), asthma (Mannino et al., 2002), and arthritis (Barbour et al., 2017). Prior research has shown that the prevalence rates of these conditions in American Indians and Alaska Natives (AI/ANs) are among the highest in the United States. Given these health disparities, aging older adults in Indian Country may be especially vulnerable to the development of concurrent negative mental health outcomes, particularly depression (Garrett et al., 2015). Nonetheless, AI/AN older adults continue to age successfully and exhibit substantial …

"Our Loons": Participant Attachments And Motivations Within A Community-Based Monitoring Program, Taylor Tewksbury

Graduate Student Theses, Dissertations, & Professional Papers

Organizations can benefit from understanding person-place relationships and volunteer motivations as they recruit and sustain involvement in their community-based monitoring (CBM) programs. Place attachment, or the bond between people and their meaningful environments, is one lens through which to explore these relationships. Past studies have associated place attachment with environmentally responsible behaviors (ERB), such as CBM involvement. However, few studies have explored the relationship between place attachment and CBM in the context of volunteers’ attachment to the species of study.

The purpose of this research study was to explore the place-based relationships and motivations among volunteers of the Loon Preservation …

Comedy, Camaraderie, And Conflict: Using Humor To Defuse Disputes Among Friends, Sheena A. Bringa

Graduate Student Theses, Dissertations, & Professional Papers

This study sought to examine the role humor plays in defusing conflict between friends from an evolutionary perspective. Although a vast amount of research exists on humor, friendship, and conflict, no single study connects all three of these concepts together. This study attempted to fill this gap by examining how different humor styles used between friends in times of conflict relate to friendship satisfaction and life satisfaction. Specifically, the hypotheses predicted that friends who use affiliative humor to deescalate conflict are more inclined to report higher relational satisfaction and improved individual well-being than friends who use maladaptive humor to deescalate …

In The Weeds, Bianca J. Jensen

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Governing Human-Elephant Conflict: A Critical Institutional Approach To Decolonizing Conservation In The Chobe Enclave Of Botswana, Jake Rayapati

Graduate Student Theses, Dissertations, & Professional Papers

Within the largest population of African savanna elephants (Loxodonta africana) on the continent, Botswana’s Chobe Enclave is a group of agricultural communities bounded by protected areas and an international border. Human-elephant conflict (HEC) is a major concern for both Enclave residents and conservation practitioners. This research asked how institutional arrangements shape the governance of HEC in the Chobe Enclave. Previous research has shown that technical solutions to HEC must be complemented by integrating governance across local, national, and international levels to make elephant conservation and management more inclusive of people who live alongside elephants. This research employed a …

Montana's Local Exotic Pet Trade, Alexa Bene Hansen

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

2-Aminopyridyl Functionalized Scaffold As A Tool For Systematic Investigation Of B-Glucan Binding And Dectin-1 Activation, Jasper Alinea Aquino

Graduate Student Theses, Dissertations, & Professional Papers

Tuberculosis (TB) – an infectious disease caused by Mycobacterium tuberculosis (Mtb) – remains an epidemic worldwide contributing to millions of deaths each year. Vaccination is possibly the best means of addressing this global threat. In recent years, synergistic Th1 and Th17 immune responses have emerged as the key players for a vaccine-induced protection against TB. There is currently no vaccine approved for humans that elicits a Th17-mediated immune response. C-Type Lectin Receptors (CLR), specifically Dectin-1, a pattern recognition receptor (PRR) of β-1,3-glucans (β-glucans) primarily from fungi cell walls, is known to induce a Th17-mediated response. The Th17 response upon binding …

Three-Dimensional Visualization And Mechanical Assessment Of The Human Running Gait, John A. Leske Ii

Graduate Student Theses, Dissertations, & Professional Papers

This thesis had two goals; 1) the development of an anatomically accurate visualization tool capable of illustrating high-speed 3D kinematic data, and 2) to rigorously evaluate the accuracy and capacity of the visualization tool by measuring the joint moments, net extensor muscle forces, and effective mechanical advantage in a group of sprinters running across the range of human speeds. Our visualization tool successfully integrates these complexities, pinpointing a location within 1.3 mm in a volume of 0.87 m x 2.00 m x 1.98 m, and accurately reproduces the observed movement trajectories of the subject's anatomical landmarks. Our approach was successful …

Negotiating The Sacred: Understanding Impacts To Iks And Itek From Use Of Remote Sensing And Gis Technologies Within Tribal Landscapes, Renelda R. Freeman

Graduate Student Theses, Dissertations, & Professional Papers

How we see the world and ourselves in relation to it is largely achieved by the lens we are looking through and associated experiences within this relationship. This is additionally true when considering the acknowledged fact that Indigenous Knowledges are derived from natural and cultural sources and these assist in constituting the cultural identities of those Peoples associated with these sources. Presently there is a hunger for access and use of Indigenous Knowledges (IK) as never before seen in public ways, through a national Call for collaborative means to apply these knowledges to such as the issues we globally face …

Greater Sage-Grouse In A Grazed Landscape: Habitat Selection, Demographic Rates, And Population Trends In Central Montana, Jennifer Evans Helm

Graduate Student Theses, Dissertations, & Professional Papers

Greater sage-grouse (Centrocercus urophasianus) abundance has declined across the species’ range due to habitat loss, degradation, and fragmentation. To address this decline, information is needed to guide habitat conservation priorities and population management efforts. This includes information about patterns of habitat selection at multiple spatial scales, habitat and land use variables that affect demographic rates, and population trend estimates. We collected ten years of data (2011-2020) on sage-grouse demographic rates and habitat selection, as well as on vegetation and livestock grazing patterns, to address these topics. We were specifically interested in the effects of a rotational grazing system implemented through …

Understanding Identity, Power, And Use Of Space Over Time Within Housepit 54, Bridge River Site (K’Etxelkná’Z), British Columbia, Ashley Elizabeth Hampton

Graduate Student Theses, Dissertations, & Professional Papers

This research examines cultural change and continuity as embodied within a singular multi-generational housepit (Housepit 54) located within the Bridge River site (K’etxelkná’z) in the Mid-Fraser Canyon, British Columbia, Canada. Previous research has highlighted the distinctive differences between Bridge River 2 and 3 time periods wherein the village was faced with dramatic population growth and climate change. These pressures crafted a Malthusian ceiling-type event which corresponded with the emergence of persistent institutionalized inequality. This research aims to illuminate issues of gender, kinship, social identity, and household social relationships in order to highlight how macro-scale cultural change is evinced in micro-scale …

Federal Funding Statutes And State-Federal Wildlife Authority: Did Congress Demonstrate A Preference For State Wildlife Management Authority With Pittman-Robertson And Dingell-Johnson?, James Vaughan Branch

Graduate Student Theses, Dissertations, & Professional Papers

The Federal Aid in Wildlife Restoration Act of 1937 now known as Pittman-Robertson and Federal Aid in Sport Fish Restoration Act of 1950 now known as Dingell-Johnson are federal statutes which stand as the original and perhaps most significant federal funding statutes supporting state wildlife conservation and management. Congress’s decision to pass these statutes may be argued to be a prima facie endorsement of state wildlife agencies (SWA) as the primary managers of wildlife since each statute dedicated substantial federal excise revenue to SWAs. We hypothesized we would find consistent evidence in favor of primary state management authority over wildlife. …

Sharing The Medicine Of Resilience: Honoring The Work Of Dr. Gyda Swaney, Matthew Martin Croxton

Graduate Student Theses, Dissertations, & Professional Papers

American Indians are a unique population that have been historically understudied in psychology. However, research in this field with this population has been growing and researchers are beginning to explore facets of American Indian mental health. There is a movement for American Indian psychologists themselves to conduct this research and to begin to develop culturally adapted and Indigenous research frameworks. There have been many Native psychologists who have helped push this work forward. One such Native psychologist was Dr. Gyda Swaney (Salish) who was a professor at the in the Psychology Department at the University of Montana and directed and …

Integrating Social Emotional Learning In The Elementary Music Classroom, Nicole Evans

Graduate Student Theses, Dissertations, & Professional Papers

Coming out of the COVID-19 pandemic, many students demonstrated a need for further social emotional learning (SEL) support. The work of this project focuses on how to help support students’ SEL development through SEL integration into the elementary music classroom. An increased focus on integrating SEL throughout educational settings is relatively new, and thus the research into how to do this effectively is still emerging. Based on the principle of collective teacher efficacy, this project explores how to integrate SEL specifically aligned with the Second Step Elementary Curriculum into the kindergarten through fifth grade general music classroom. Utilizing the existing …

Flicker Feather Films: Visual Anthropology, Indigenous Film, And Documentary Filmmaking, Martin I. Lopez

Graduate Student Theses, Dissertations, & Professional Papers

In order to contribute 21st-century tools to educational settings, this dissertation draws from the growing subfield, multimodal anthropology, which includes, but is not limited to visual anthropology and film. This dissertation is composed of a series of documentary films created by an Indigenous filmmaker. When combined with Indigenous filmmaking, tribal cultures can begin to share their points of view through self-representation. Indigenous methodologies helped to frame the documentary films I made for my dissertation by aiming to combat the perpetuation of stereotypes and misrepresentation by non-Native filmmakers. Documentary films within anthropology still have validity in academia if the goal is …

Ecological Adaptation And Speciation In Chipmunks, Nathanael David Filer Herrera

Graduate Student Theses, Dissertations, & Professional Papers

Understanding how evolutionary and ecological mechanisms promote speciation and adaptation is one of the central challenges of evolutionary biology. Recent advancements in theoretical, methodological, and computational approaches now allow biologists to test long-standing questions regarding the evolutionary history of species. This includes the genomic underpinnings of reproductive barriers and adaptive phenotypes, and the contribution of ecology, geography, and demography in the generation and maintenance of biodiversity. While great strides have been made in understanding the genetic and ecological factors that underlie speciation and local adaptation, many open questions remain. My dissertation first seeks to address questions about how we define …

Assessing The Impact Of Parallel Burnout Fires On Flank Rate Of Spread, Erik Borke

Graduate Student Theses, Dissertations, & Professional Papers

The effects of flank-parallel suppression fires on the local rate of spread (ROS) of freely burning headfires through fully cured homogeneous grass fuels are assessed. Data sets include: one thermal image stack of a prescribed burn recorded by drone, and a suite of simulation experiments carried out in Wildland Urban Interface Fire Dynamics Simulator (WFDS). A new approach to computing ROS, curvature proxy driven normals to convex polylines, was developed to carry out this analysis. ROS time series depicting flank acceleration of the prescribed burn and simulation experiments, observable under coarse and fine directional classification schemes respectively, are the primary …

Investigating Elastic Deformation Induced By Surface Loads On Planetary Bodies, Ashlesha Khatiwada, Hilary Martens, Donald F. Argus

Graduate Student Theses, Dissertations, & Professional Papers

Planetary bodies, including the Earth, deform when there is a redistribution of surface load. In this thesis, I conduct three independent projects related to surface loading, two of which investigate methods related to the modeling of surface loading and one which seeks to catalog the displacement responses of other planetary bodies to a surface load.

The first project aims to compare four methods for modeling the elastic loading response of the Earth: a homogeneous, non-gravitating, half-space method; a homogeneous, gravitating, spherical method; a homogeneous, non-gravitating spherical method; and a radially stratified gravitating spherical method. Many studies have focused on computing …

Beaver Dam Analogs (Bdas) Alter Carbon Pools, Fluxes, And Concentrations Of Intermountain Headwater Streams, Hilary Schultz

Graduate Student Theses, Dissertations, & Professional Papers

Beaver dam analogs (BDAs) have emerged as a climate adaptation and restoration strategy for water resource management in the drought-prone Western U.S., yet the focus has been on their influence on water quantity, overlooking effects on broader ecological components. By increasing water residence time and facilitating sediment retention, BDAs have the potential to influence carbon pools, fluxes, and concentrations. To examine the influence of BDAs on instream and riparian organic C and trace gases, we studied three intermountain headwater streams restored with BDAs two years after restoration during the summer of 2021. We found that there were subtle differences in …

Influence Of Exercise On Brown, White And Beige Adipocytes, Anna C. Covington

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

High-Frequency Observations Of Riverine Inorganic Carbon Variability Using In Situ Autonomous Sensors, Qipei Shangguan

Graduate Student Theses, Dissertations, & Professional Papers

Rivers and streams actively metabolize, emit, transport and store carbon of various forms received from terrestrial environments. Our current understanding of how rivers and streams contribute to the global carbon cycle remains limited, however, in part due to high temporal variability and complexity of inorganic carbon chemistry. In situ autonomous chemical sensors provide powerful tools to observe changes in rivers and streams and enable development of CO2-specific models to quantify riverine processes. In many aspects, our ability to utilize high-frequency sensor measurements remains limited.

This dissertation aims to improve our understanding of inorganic carbon cycling through sensor technology and numerical …

Characterization Of Protein Folding Pathways And Structural Stability, Michael Tyler Rothfuss

Graduate Student Theses, Dissertations, & Professional Papers

Proteins are large, flexible molecules with an extremely large number of potential conformations. Proteins expressed in cells traverse available conformations to reach a consistent, thermodynamically stable, biologically active structure through a process known as protein folding. The atomic composition of the protein, defined by a sequence of amino acid residues encoded in DNA as a gene, determines the protein folding pathway and ultimate native structure of the protein molecule. Understanding the relationship between the sequence of amino acids and the resulting protein structure has been a central challenge in protein research for decades. To fill this knowledge gap, we test …

Evaluating The Sensitivity Of Crustal Deformation To Bedrock Hydrology In A Mountain Watershed, Brett J. Oliver

Graduate Student Theses, Dissertations, & Professional Papers

We evaluate the sensitivity of Earth's elastic deformation to groundwater hydraulic diffusivity using coupled groundwater and elastic deformation models. Seasonal changes in terrestrial water storage cause deformation to the Earth’s crust and deeper interior that is within the observational capacity of GPS instruments. We couple finite difference groundwater simulations with geodetic forward models of crustal displacement to investigate the ability of geodetic deformation to constrain bedrock hydrologic properties. We use MODFLOW-2005 to simulate seasonal changes in groundwater flow and storage, and then use the LoadDef elastic deformation model to forward model surface displacement caused by the change in terrestrial water …

Ecosystem Phosphorus Nutrition: A Soil Process Investigation, Alanna Nicole Shaw

Graduate Student Theses, Dissertations, & Professional Papers

Many Earth System Models (ESMs) predict a plant fertilization effect associated with elevated atmospheric carbon dioxide (CO2) concentrations that may increase the capacity of the biosphere to store carbon, stabilizing or even reducing atmospheric CO2 concentrations. This could plausibly mitigate global climate change. However, this effect is only possible in the absence of other limiting factors, such as the availability of nutrients like phosphorus (P). Critical uncertainties remain in our understanding of the soil biogeochemical controls of terrestrial P availability including: the response of soil P recycling rates to global climate warming and extent to which occluded soil P is …

Narrowing The Performance Gap Between Male And Female Soldiers, Jessica Nicole Knoll

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Seasonality And Depth Variability In The Microbial Ecology Of A Large, Oligotrophic Lake, Kate A. Evans

Graduate Student Theses, Dissertations, & Professional Papers

Planktonic microorganisms are the primary drivers of energy flow in aquatic ecosystems, and their ability to rapidly respond to changing environmental conditions makes them key sentinels of ecosystem variability. However, understanding how microorganisms respond to variations in their environment requires improved understanding of microbial physiology and metabolism. Microorganisms that live in fluid environments experience a dynamic world, where resources needed for growth can be scarce or plentiful. In some cases, such variation can be directly linked to the physical movement of water, for example, vertical mixing. Temperate lakes experience strong seasonality in stratification and mixing, so resolving the relationships between …

Under Night's Darkness, Alexandra Fiege Ore

Graduate Student Theses, Dissertations, & Professional Papers

Under Night’s Darkness follows Landry, who has recently been paroled from prison and returns to his family home in rural Montana. He has recently become a born-again Christian and is in the midst of a frantic final attempt to redeem himself after a lifetime dedicated to bullying and cruelty. He’s not only haunted by the specters of domestic abuse and sexual assault, but also by the ghosts of the recently dead. Enraged at the failure of his tragicomic attempts at redemption, Landry commits the sadistic murder of his own brother. The ensuing cycle of revenge destroys Landry’s family and Landry …

We Are Larger Than Ourselves, Mark Spero

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.