Digital Commons Network^™

In The Grey Of The Superfund, Krysti Shallenberger

Graduate Student Theses, Dissertations, & Professional Papers

The oil-soaked ground underneath several homes near the Tank Hill Facilities released vapors into the homes. The people in Cut Bank, Montana complained, and the Montana Department of Environmental Quality held a meeting in 2010. But that was just the beginning.Residents in Cut Bank, Montana just filed a complaint against four oil companies who used the Tank Hill crude oil storage and transportation facility. But the complaint only culminated after 24 years of suffering oil fumes, contaminated water and decreased property value. The Tank Hill Facilities superfund site had been used to store and transport crude oil since the 1930s. …

Identification Of Mastigocladus Laminosus Genes Associated With Enhanced Nitrogen Fixation Performance, Patrick R. Hutchins

Graduate Student Theses, Dissertations, & Professional Papers

Understanding population variation for fitness-related traits is important for our comprehension of evolutionary adaptation and of how populations respond to environmental change. Here, I investigate variation in nitrogen fixation performance for an ecologically-variable population of the cyanobacterium Mastigocladus laminosus from White Creek, a nitrogen-limited, geothermally-influenced stream in Yellowstone NP. I next take a population genomics approach to identify candidate loci associated with superior performance. Variation among strains and temperature dependence of the nitrogen fixation process were the most important factors in a linear mixed effects model. Absolute and relative measures of genetic differentiation between strains from the upper quartile of …

Biological Invasions: Insights Into Ecology And Evolution, Jennifer Naomi Smith

Graduate Student Theses, Dissertations, & Professional Papers

Introductions of exotic species commonly restructure native communities, but the mechanisms driving native species responses are poorly understood. Invasion biology has focused its research on the negative impacts of invaders, yet invaders can also have positive interactions. A holistic understanding of how biological invasions can have a full range of potential responses from negative to neutral to positive. Understanding the mechanics that underlie native species responses to invasions can help elucidate those factors structuring the native communities we see today. I used a combination of experimental and observational studies in the field and laboratory to determine the effects of spotted …

The Accept Project: Social Justice Art And Education, Jackalynn Marie Snow

Graduate Student Theses, Dissertations, & Professional Papers

The ACCEPT Project: Social Justice Art and Education Chairperson: Jillian Campana Co-Chairperson: Karen Kaufmann The ACCEPT Project is an entity that I created out of a need to use art, and specifically theatre, in a meaningful manner beyond entertainment. I found myself inspired by artists who were using their craft to induce social change, so I sought to do likewise. The ACCEPT Project stands for Acting/Art Creates, Challenges, and Enlarges Pro-Human Truths. The information that follows documents my journey to discover a means to the ends of art for social justice and the results which came from that action. As …

Geography’S Place In Big Sky Country: A Study Of Motivating And Demotivating Factors For Teaching Geography In The Montana Classroom, Kayde Ellen Kaiser

Graduate Student Theses, Dissertations, & Professional Papers

The purpose of this research was to develop an understanding of the motivating and demotivating factors for teaching geography. The research examined what aspects of policy, preparation, administration, etc. affect a teacher’s desire to teach geography concepts in the (K)-12 classroom. By understanding these factors, organizations and programs can begin to mitigate them with the intention of encouraging teacher to teach quality geography concepts, and ultimately produce students with increased geographical knowledge and literacy. The research created a set of primary source data that will be utilized for further research and strategic planning. The research will assist the Montana Geographic …

Restoration As Caring Practice: A Relational Perspective On Ecological Recovery, Daniel Avery Congdon

Graduate Student Theses, Dissertations, & Professional Papers

Ecological restoration is defined by the Society for Ecological Restoration (SER) as “the process of assisting the recovery of an ecosystem that has been degraded, damaged or destroyed” (9). In practice, restoration typically involves the removal of pollution, human-made structures (like dams or roads), invasive species, and other impediments to ecological health. Removing the sources of ecological impairment is coupled with the reintroduction of flora, fauna, and the physical structures that are necessary for healthy ecosystem function. The potential for restoration to dominate nature is a concern of environmental ethicists. In theory, domination might stem from the technology used in …

Missoula Historic Underground Project: Urban Archaeology, Landscape, And Identity, Nikki Manning

Graduate Student Theses, Dissertations, & Professional Papers

The American West’s urban undergrounds are laced with mystique and lore. Well-known historic undergrounds exist throughout the American West in cities such as Portland, Pendleton, Seattle, Boise, and Butte. Tales exist of secret underground passages to houses of prostitution, Chinese opium dens, and Prohibition-era alcohol smuggling operations. While in some cases these stories can be based in fact, it appears that many underground spaces were less nefarious than imagination might suggest. In Missoula, Montana, a local, urban archaeological survey was conducted to see what evidence remained of the puzzling historic underground landscape. This study of Missoula’s subterranean archaeological features included …

Testing The Utility Of Environmental Cluster Analysis Based Upon Biodiversity Surrogates Within Geographic Information Systems For Conservation Planning: A Case Study Of Inland Temperate Rainforest In The Northern Rocky Mountains, Matthew J. Heimel

Graduate Student Theses, Dissertations, & Professional Papers

Environmental surrogates have been proposed as a method for addressing a lack of taxonomic data in biodiversity conservation planning. These surrogates, used as variables in Geographic Information Systems (GIS) analysis, can be used in classification procedures to classify areas that are hypothesized to support or be able to support a targeted species or community. The peripheral range of the inland temperate rainforest’s (ITRF) in northwest Montana and northern Idaho was used as a case study for testing the utility of a method known as Environmental Cluster Analysis (ECA) within a GIS using abiotic environmental variables encompassing broad environmental attributes to …

Assessing Alternative Methods For Monitoring Populus Tremuloides Following Restoration Treatments, Michael Fowler

Graduate Student Theses, Dissertations, & Professional Papers

A variety of alternative sampling methods, commonly known as “Distance Methods”, were tested to determine if they could be a better choice for monitoring Populus tremuloides (quaking aspen) regeneration following aspen restoration treatments. These methods were evaluated based on their ability to accurately and efficiently estimate three common aspen stand characteristics used to gauge aspen restoration treatment effectiveness: aspen regeneration density, browse pressure, and height class distribution. Distance Method accuracy and efficiency were compared to a standard fixed-radius plot sampling method in four treated aspen stands in western Wyoming. None of the Distance Methods fulfilled all of the requirements, which …

Childhood Trauma-Related Nightmares: The Impact Of Exposure, Relaxation, And Rescripting Therapy On Cognitive Functioning, Susan E. Ocean

Graduate Student Theses, Dissertations, & Professional Papers

Trauma experiences are, unfortunately, a common part of childhood in the United States and are connected to serious health-related concerns throughout childhood and adulthood. A primary symptom of trauma exposure and posttraumatic stress is re-experiencing, which often occurs in the form of nightmares. Though cognitive behavioral treatment (CBT) is currently the most well supported treatment model for trauma-exposure, it does not specifically address nightmares. Left untreated, trauma-related nightmares may become chronic, impairing quality and quantity of sleep, and exacerbating and perpetuating trauma symptoms. Quality sleep is a necessary element of healthy child development. Trauma experiences and inadequate sleep have been …

Habitat Quality Influences Migratory Strategy Of Female White-Tailed Deer, Charles R. Henderson Jr.

Graduate Student Theses, Dissertations, & Professional Papers

Partial migration is a life history strategy that is common for ungulate species living in seasonal environments. One factor that influences the decision to migrate by ungulates is access to high quality habitat. We evaluated the influence of access to winter habitat of high quality on the probability of an individual migrating, the differences in seasonal habitat use between and within migratory and resident classes of deer, and the effects of this decision on the survival of female white-tailed deer. We hypothesized that deer with home ranges of relatively low quality in winter would have a relatively high probability of …

The Effects Of Seed Source Health On Whitebark Pine Regeneration Density After Wildfire, Signe B. Leirfallom

Graduate Student Theses, Dissertations, & Professional Papers

Whitebark pine (Pinus albicaulis) is declining nearly range-wide largely from mountain pine beetle (Dendroctonus ponderosae) outbreaks and the exotic pathogen Cronartium ribicola, which causes the disease white pine blister rust. With high mortality in cone-bearing whitebark pine, seed production may not be sufficient to support natural regeneration after disturbance such as wildfire. The objective of this study was to examine the relationship between whitebark pine seed source health and whitebark pine regeneration density in adjacent, stand-replacing burns. I sampled regeneration patterns and seed source health and status in 15 burns within six national forests and …

When The Sap Flows: Affection And Industry In The Maple Woods, Nicholas R. Littman

Graduate Student Theses, Dissertations, & Professional Papers

This thesis arises from my time waiting for, collecting, and boiling sap from maple trees into syrup. I spent four months in the Adirondack Mountains of upstate New York working for a modern commercial sugaring operation and sugaring in the old-fashioned manner—with buckets and a wood-fired evaporator.

The narrative follows my journey as a lifelong Westerner traveling east to learn an old tradition with my hands. Instead of observing how the warmth of a changing climate was affecting maple sugaring, I was thrust into a landscape defined by cold, during one of the coldest winters on record in the Northeast. …

Spiritual Practices Among Northern Plains Tribal Members As A Protective Factor In The Relationship Between Unexpected Deaths And Traumatic Grief, Ciara D. Hansen

Graduate Student Theses, Dissertations, & Professional Papers

Background: Grief is an important and potentially misunderstood construct in Indian country. Past research has shown that the experience of unexpected deaths has been associated with intense and maladaptive grief responses. Active participation in religion or spirituality has been shown to buffer against the negative effects of bereavement. Given the well-documented premature mortality rates and generally lowered life expectancy in American Indian communities, this study examined the relationships between spirituality, unexpected deaths, and traumatic grief, as measured by the Inventory of Traumatic Grief – Revised (ITG-R). Method: A secondary multiple regression analysis was used to test the hypothesis that …

Spatial Patterns And Physical Factors Of Smokejumper Utilization Since 2004, Tyson A. Atkinson

Graduate Student Theses, Dissertations, & Professional Papers

This research examines patterns of aerial smokejumper usage in the United States. I assess landscape and environmental factors of their deployment using a detailed nine-year record of smokejumper activity in combination with terrain, fuels, and transportation network data. Specifically, the research seeks to identify commonalities in location (proximity), terrain, fuels, fire occurrence, and accessibility of smokejumper actions that inform current usage and identify opportunities for improved utilization. Terrain parameters (steep, rugged, inaccessible) of the western U.S. were classified and a baseline travel time grid was created (30 meter resolution). Fires in which smokejumpers responded were compared with all fires that …

Virtual Screening And Discovery Of Lead Compounds As Potential Dna Methyltransferase 1 Inhibitors And Anticancer Agents, Ogar Ofuka Ichire

Graduate Student Theses, Dissertations, & Professional Papers

Epigenetic changes consist of DNA methylation, histone modification, micro RNA and genome imprinting. DNA methylation of the CpG islands is one of the main methods of epigenetic inactivation of genes and aberrant methylations at promoter regions of tumor suppressor genes can alter gene expression and play an important role in cancer development. DNA methyltransferase I (Dnmt1) is the enzyme responsible for maintaining methylation patterns during cell division and it is overexpressed in many cancers. Thus, Dnmt1 is a promising therapeutic target for development of novel anticancer agents and epigenetic modulators. We have developed two promising class of lead candidates, compounds …

Assessing The Determinants Facilitating Local Vulnerabilities And Adaptive Capacities To Climate Change Impacts In High Mountain Areas: A Case Study Of Northern Ladakh, India, Kimiko Nygaard Barrett

Graduate Student Theses, Dissertations, & Professional Papers

Climate change is increasingly redefining the dialectic exchange between human systems and ecological processes. While the rhetoric of climate change is articulated within broad arenas of governance and policy, the realities of climate change are experienced at the local scale. Effective adaptation measures must therefore be commensurate with local resources, needs and objectives while remaining aligned with larger decision-making efforts. The impacts of climate change are heterogeneous and vary with geographic context. Biophysical parameters interface with socioeconomic and political forces to greatly influence the outcome of climate-related risks at the local level. In the high mountains of the western Himalayas …

The Effects Of Intimate Relationship Education On University Students' Attachment Security, Meredith Hood

Graduate Student Theses, Dissertations, & Professional Papers

For several decades, a variety of interventions have been utilized in an effort to improve the likelihood that individuals will attain a stable and satisfying marriage. Historically, these interventions have taken place when individuals are already partnered and challenging relationship dynamics are already established. More recently, however, many relationship experts have established a more proactive approach to prevent marital decline. Adults with secure attachment feel comfortable with closeness and interdependence in relationships. Similarly, they believe they are worthy of love and see others as trustworthy and dependable. In contrast, adults with insecure attachment tend to struggle more in close relationships. …

Importance Of Leadership Competencies In College And University Staff Athletic Trainers: Perceptions Of Head Athletic Trainers, Janelle Lynn Handlos

Graduate Student Theses, Dissertations, & Professional Papers

Importance of Leadership Competencies in College and University Staff Athletic Trainers: Perceptions of Head Athletic Trainers This quantitative study utilized a survey design to determine the level of importance head athletic trainers at the college and university level place on their staff athletic trainers displaying previously identified leadership competencies. Data were collected using a web-based questionnaire designed for the study. Participants were 326 college and university head athletic trainers closely resembling the characteristics of the population. Data were analyzed with descriptive statistics to determine the level of importance assigned to each competency and the demographic responses of participants. Inferential statistics …

Stigma Perceptions Of Adolescents With Emotional And/Or Behavioral Difficulties, Camille Barraclough

Graduate Student Theses, Dissertations, & Professional Papers

The current study sought to better understand how adolescents with serious mental health problems participating in inpatient psychiatric treatment experience self- and perceived public stigma, using demographic and clinical factors to help further explain adolescents' experience of self- and perceived public stigma. Participants reported moderate levels of both self- and perceived public stigma, though these adolescents did not report significantly higher levels of self- or perceived public stigma than community/outpatient based samples. Although neither the three demographic nor three clinical factors were able to account for a significant amount of reported self- or perceived public stigma, the current research examined …

Modeling Of Aqueous Equilibrium: Three-Dimensional Trend Surfaces (Topos), Mohammad Mainul Hossain

Graduate Student Theses, Dissertations, & Professional Papers

This dissertation establishes a comprehensive approach to looking at aqueous equilibria phenomena over essentially all feasible compositions of two component solutions - acid-base titrations, metal-ligand complexation, oxidation-reduction couples and solubility of binary ionic compounds. Fundamental to this method is the definition of a composition grid above which numerous system properties can be plotted as three-dimensional trend surfaces to visualize important aspects of system behavior. These have been named "topos" because their appearance is similar to topographic maps. In each case Microsoft ExcelTM worksheets have been designed with embedded Visual BasicTM macros that provide an easy means for anyone to generate …

Glutamate Transporter Modulation Of Ambient And Synaptic Glutamate Levels, Weinan Sun

Graduate Student Theses, Dissertations, & Professional Papers

Glutamate is the major excitatory neurotransmitter in the mammalian central nervous system. An accurate spatial and temporal glutamate concentration profile during signaling is crucial for reliable neural computation. In these studies, we investigated the roles of glutamate transporters in controlling both ambient glutamate levels and dynamic glutamate concentrations profiles during synaptic transmission. Using the Xenopus oocyte expression system, we demonstrated that glutamate transporters act as an effective sink and are capable of maintaining >200 fold glutamate concentration gradient between the bath and cell surface when expressed at levels corresponding to physiological transporter densities in the CNS. We also characterized the …

Accuracy Assessment In Multivariate Bayesian Forecasting Linear And Nonlinear Models, Clark Joachim Kogan

Graduate Student Theses, Dissertations, & Professional Papers

Reduced alertness and high levels of cognitive fatigue due to sleep loss bring forth substantial risks in today's 24/7 society. Biomathematical models can be used to help mitigate such risks by predicting quantitative levels of fatigue under sleep loss. These models help manage risk by providing information on the timing at which high levels of fatigue will occur; countermeasures can then be taken to reduce accident risk at such critical times.

Many quantitative models exist to predict cognitive performance based on homeostatic and circadian processes (Mallis et al., 2004). These models have typically been fitted to group average data. Due …

The Significance Of Administrative Support For The State-Wide Innovation Of Montana's Indian Education For All, Chris Michael Olszewski

Graduate Student Theses, Dissertations, & Professional Papers

This non-experimental dominant-less dominant mixed-methods study examined data specific to principal and teacher perceptions of the leadership support for Indian Education for All (IEFA) professional development in their school. The data from each instrument were compared to (a) the administrators’ and teachers’ Peak Stage of Concern of the Indian Education for All innovation, (b) the highest IEFA training level attained, and (c) the amount of time that administrators and teachers report spending on supporting and implementing IEFA in their school and classroom. Spearman’s rho correlations were utilized to examine these relationships.

This study examined if the level of leadership support, …

Ties That Bind On The Northwestern Plains: Contexts For Prehistoric Trade And Travel, Sara Alicia Scott

Graduate Student Theses, Dissertations, & Professional Papers

This PhD dissertation focuses on several interrelated archaeological problems in Northwestern Plains and Intermountain prehistory. The dissertation is comprised of three articles that have been either accepted for publication in peer-reviewed regional or international archaeological journals or are in the process of being reviewed for publication. The articles focus on the following subjects: 1) radiocarbon dating and analysis of Late Prehistoric period perishable items from Pictograph and Ghost Caves in south-central Montana; 2) radiocarbon dating of lower cultural levels in Pictograph Cave to assess the accuracy of the chronology established by William Mulloy in 1958; and 3) an analysis of …

Language Socialization, Revitalization And Ideologies In The Salish-Pend D'Oreille Community, Rebecca Jo Wood

Graduate Student Theses, Dissertations, & Professional Papers

The goal of this thesis is to examine the language socialization practices and ideologies of the Salish-Pend d’Oreille community in order to understand language and cultural change in this community. This cultural group has become predominately monolingual in the non-traditional language, English; yet as my research demonstrates, the traditional language, Salish, continues to convey important epistemological perspectives valued in traditional society. By analyzing instances of Salish language use and non-use, I define some of the social factors that influence language use, as well as how children are socialized to use the language in culturally significant ways. When Salish is used, …

Examining The Effectiveness Of The Circle Of Security Parenting Dvd Program, Whitney Rostad

Graduate Student Theses, Dissertations, & Professional Papers

Child maltreatment continues to occur at alarming rates, and while several interventions currently exist for use with parents to minimize the incidence of child maltreatment (Daro & McCurdy, 2007), many can be time consuming for service providers and consumers. One program, the Circle of Security (COS), lasts 20 weeks with weekly sessions lasting approximately 2 hours each (Marvin, Cooper, Hoffman, & Powell, 2002). To make the program more accessible, the program’s originators modified it into a DVD protocol comprising only 8- weeks (Cooper, Hoffman, & Powell, 2009). The current study evaluated the effectiveness of the COS DVD program in improving …

The Relationship Between Intergenerational Educational Experiences, School Culture/Climate, And Racial Identity Among American Indian High School Students, Sandra Lee Boham

Graduate Student Theses, Dissertations, & Professional Papers

This research focused on the whether or not there was a relationship between (a) school culture and climate, (b) racial identity, and (c) inter-generational educational experiences of American Indian students in urban/off-reservation AA high schools in Montana as perceived by American Indian students, American Indian parents, administrators, teachers, and staff. Data were collected at four schools located in two school districts in different geographical locations in Montana. The data were collected using the (a) School as a Caring Community Profile (SCCP-II) survey, (b) People of Color Racial Identity Attitude Scale (PRIAS) survey, (c) demographic survey data, (d) academic achievement data, …

The Role Of Nadph Oxidase In The Modulation Of Pp2a, Nicole M. Byrnes

Graduate Student Theses, Dissertations, & Professional Papers

Transient, but severe global ischemia results in AMPA receptor (AMPAR) mediated delayed neuronal death (DND). AMPARs, a major glutamatergic receptor in the CNS, are heteromeric complexes composed of GluA1 - GluA4 subunits. Most AMPARs in the hippocampus are calcium-impermeable due to the presence of the edited form of the GluA2 subunit. Ischemia results in a down-regulation of GluA2 mRNA and protein expression, resulting in the expression of GluA2- lacking, calcium/zinc-permeable AMPARs. It has been indicated that these GluA2-lacking AMPARs play a key role in promoting DND following ischemic injury. Recent studies report that an oxidative stress signaling pathway is responsible …

Securing Food And Livelihoods: Opportunities And Constraints To Sustainably Enhancing Household Food Production In Santa Familia Village, Belize, Siobhan B. Lozada

Graduate Student Theses, Dissertations, & Professional Papers

Rural households play an active role in reorganizing their livelihood strategies to respond to external stresses and shocks. What is unclear is the extent to which rural households can remain resilient in the face of continued external stresses and how policy actions at larger scales can more effectively encourage rural food and livelihood sustainability. Economic and ecological stresses and shocks have negatively impacted livelihood security and wider economic stability in Belize. This has increased the number of people below the poverty line to 41.3 percent, who remain disproportionately located in rural areas. With a high degree of import dependency, global …