Digital Commons Network^™

Using Multiple Environmental Tracers To Estimate Field-Scale Longitudinal Dispersivity, Casey L. Kleppel

Graduate Student Theses, Dissertations, & Professional Papers

In this study, we seek to reduce parameter uncertainty in groundwater modeling systems, particularly in reactive transport models, by quantifying effective field-scale longitudinal dispersivity using anthropogenic environmental tracers. We generate synthetic aquifer fields and model transport of atmospheric tracers and test whether tracers can be used to determine an effective aquifer-scale dispersion coefficient. We generate synthetic datasets by simulating transport of chlorofluorocarbons (CFC11, CFC12, CFC113), sulfur-hexafluoride (SF₆) and tritium (³H) with input functions derived from known atmospheric concentrations, through a three-dimensional, stochastic, heterogeneous synthetic aquifer developed using sequential Gaussian simulation using the PFLOTRAN reactive transport model. …

Battles Of The Mind: The Reaction Against Progressive Education, 1945-1959, Ben Yturri

Graduate Student Theses, Dissertations, & Professional Papers

This thesis discerns the relationships between three interrelated movements of the post-war period (circa 1945-1959): the overwhelming concern among leading intellectuals regarding the relationship between the individual and society, the post-war debates over education, and rising religious observance. Following WWII, the nation’s leading scholars and social critics addressed the most important problem facing the country and, for that matter, the world: how to avoid totalitarianism. Almost naturally, such anxieties influenced new debates over education. Broadly speaking, these controversies involved two related disputes over the efficacy of progressive education and the proper relationship between church and state. After World War II, …

Sunbaby, Katelyn Eva Garcia

Graduate Student Theses, Dissertations, & Professional Papers

Above all else, Sunbaby is a project concerned with that which is passed down from a mother to her daughters. Less interested in writing into the center of violent acts, this series of poems aims instead to consider all the things – both physical and psychological – that exist of the edges of violence. What happens to a body in the wake of violent acts? What informs the trauma of families? These are questions Sunbaby asks its reader to grapple with.

Set to background of the desert and mountain West, Sunbaby lingers on bodies (human and other) subjected to environmental …

Service-Learning In Communication Sciences And Disorders Undergraduates: Outcomes, Autism Knowledge, And Career Decisions, Jennifer Katherine Schoffer Closson

Graduate Student Theses, Dissertations, & Professional Papers

Service-learning is often infused into undergraduate courses with the goal of connecting what is learned in the classroom to what is executed in the field. CSD 396 - Autism on Campus/SvcLrn (CSD 396) is a University of Montana (UM) Speech, Language, Hearing, and Occupational Sciences service-learning course linked to the Mentoring, Organization, and Social Support for Autism/All Inclusion on Campus (MOSSAIC) Program. The service-learning component of CSD 396 provides peer mentorship to university students with autism in the MOSSAIC program. In this qualitative study, I have examined the service-learning experience of past and current student mentors, the impact on their …

Tales From A Placeholder: A Relational Journey With Land, Place, People And Self, Kalle O. Fox

Graduate Student Theses, Dissertations, & Professional Papers

The proposed thesis is a collection of place-based, long- and-short-form creative nonfiction essays. The places of interest are where the author spent different amounts of time in during her twenties, including Iceland, Miami and Seaside, Florida, Butte and Missoula, Montana, and a series of National Parks on the western side of the Continental Divide. This thesis is informed what cultural geographer Yi Fu Tuan coined as topophilia: the affective bond between people and place. “Place” and “sense of place,” while each having their own array of definitions in environmental scholarship, are considered interchangeable in the context of my work. A …

Introducing Undergraduates To Instructional Design In A Graduate Studio: An Experiential, Model-Centered Approach, Rebecca Stull Zundell, William Sowards, Scott L. Howell, Jason K. Mcdonald

Faculty Publications

This case study describes a combined graduate and undergraduate instructional design studio that introduced undergraduate students to instructional design in a multifaceted, holistic, and applied way. Reviewing the experience of the undergraduates in the course, this design case describes four learning interventions used to create this applied experience: (1) instructional design team projects—one non-profit and the other in higher education, (2) weekly seminars and biweekly training sessions from field experts, (3) an experiential out-of-state trip, and (4) weekly reflection journals. These studio-based learning interventions are presented within the context of the Experiential Learning Theory and Model-Centered Instruction. Overall, the course …

The Combination Of Tlr7/8 And Tlr4 Adjuvants In An Influenza Vaccine Produce Unique Antigen-Specific Adaptive Immunity And Protect Against Lethal Heterologous Influenza Challenge, Shelby Lynn Cole

Graduate Student Theses, Dissertations, & Professional Papers

Influenza virus infection is a global health concern resulting in death and illness each year, which disproportionally effects high-risk individuals. While there are several approved vaccines for seasonal influenza, there are some limitations to consider: current vaccines provide minimal cross protection against seasonally drifted influenza subtypes, influenza vaccine strains change each year, requiring timely manufacture of a new vaccine. Thus, vaccines capable of inducing a more robust and broadly protective immune response to multiple influenza subtypes remains a critical unmet need. Adjuvants and novel delivery systems are an interesting and promising avenue of exploration for enhancing and broadening seasonal influenza …

Rewilding The Great Plains, Sarah E. Mosquera

Graduate Student Theses, Dissertations, & Professional Papers

This long-form journalistic story and photo essay is about Tribes in Eastern Montana and their efforts to restore native species to the Great Plains ecosystem. Across the Great Plains, Tribes are working to bring native species back to their ancestral territories. The swift fox, black-footed ferret and buffalo were all pushed to the brink of extinction as colonizers took over. Now, Tribes on Fort Peck, Northern Cheyenne and Fort Belknap are partnering with conservation organizations to help repair the prairie ecosystem. Driven by cultural knowledge and a sense of responsibility, many Tribes are learning from past mistakes and nearby successes. …

Archaeological Investigations And Historic Artifact Analysis For Three Projects In Yellowstone National Park, Monte Keoua White

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Final Thoughts And Observations, James R. Allison, Heidi Roberts, Jerry D. Spangler

Faculty Publications

This chapter addresses three topics inspired by the discoveries made during Jackson Flat’s archaeological investigations. The first topic examines the implications of the discovery of early maize agriculture in the Far Western region. Our data suggest that the Far Western Basketmaker tradition developed on a trajectory separate from the Western Basketmaker groups associated with the White Dog Phase in the Four Corners region.

Fremont Smoke Mixtures: Botanical Analyses Of Pipes From Wolf Village, Goshen, Utah, Michael T. Searcy, Hannah Stefffensen, Scott Ure

Faculty Publications

Over several field seasons, ceramic and stone pipes were recovered from the Fremont site of Wolf Village (AD 1000-1100). Nine of the more complete pipes included residue and burned dottle that were analyzed for macrobotanical and microbotanical remains. Three were subjected to FTIR. These analyses represent the first Fremont pipes ever analyzed for botanical remains, and the results reported in this paper provide conclusions regarding possible smoke mixtures used by the Fremont. Contents of the pipes included remains of tobacco, plants from the Amaranthaceae family, maize fragments, grasses, and various fuel woods.

Sr. Ciencia And El Mago: A Legacy Of Archaeological Discovery And Lifelong Learning, Michael T. Searcy

Faculty Publications

As partners in the pursuit of archaeological discovery, Paul Minnis and Michael Whalen developed an enduring professional relationship that resulted in productive careers marked by multiple field projects and numerous scholarly publications. While engaged in academic archaeology, they also fostered a new generation of archaeologists along the way. An integral part of their pedagogy was carried out in the field where students worked alongside Mike and Paul, learning not only how to carry out an archaeological project from beginning to end, but also how to collaborate in a field of study that has become increasingly interdisciplinary. This paper presents my …

Redating Paquimé And The Convento Site Sixty Years After The Joint Casas Grandes Expedition In Northwestern Mexico, Samuel Jensen, Michael T. Searcy, Meradeth Snow

Faculty Publications

Debates continue regarding the rise of the Late Prehistoric (post-AD 1200) city of Paquimé in northwestern Chihuahua, Mexico. Unfortunately, the established chronology of the site was flawed due to incorrect interpretations of dendrochronological samples that lacked cutting dates (i.e., outer rings). While Dean and Ravesloot (1993) were able to determine this mistake through a reanalysis of the original chronological sequence, no attempts have been made to revise the chronology using new dates. This poster reports the results of new radiocarbon dates analyzed from samples of human remains found at Paquimé during the Joint Casas Grandes Expedition from 1958 to 1961. …

A Reanalysis Of Population Dynamics In The Casas Grandes Region Of Northern Mexico Using Mitochondrial Dna, Meradeth Snow, Michael T. Searcy

Faculty Publications

The Casas Grades region in northwest Chihuahua, Mexico, is ideally situated to explore the notion of contact between the Southwest/Northwest and Mesoamerica, as it lies geographically in the borderlands where traditions of both culture areas were practiced. In order to explain these ties, past researchers have suggested the flourishing Casas Grandes population in the thirteenth century AD was caused by migrants from Mesoamerica, as first suggested by Di Peso in his pochteca hypothesis. Others, such as Lekson and his Chaco Meridian hypothesis, suggest migration from the north. Mitochondrial genetic data from earlier and later time periods provides the ability to …

Signals From On High And The Power Of Growth Mindset: A Natural Field Experiment In Attracting Minorities To High-Profile Position, Jeffrey A. Flory, Andreas Leibbrandt, Christina Rott, Olga B. Stoddard

Faculty Publications

We conduct a large-scale natural field experiment with a Fortune 500 company to test several approaches to attract minorities to high-profile positions. 5,000 prospective applicants were randomized into treatments varying a portion of recruiting materials. We find that self-selection at two early-career stages exhibits a substantial race gap. Importantly, we show that this gap can be strongly influenced by several treatments, with some increasing application rates by minorities by 40 percent and others being particularly effective for minority women. The heterogeneities we find by gender, race, and career stage shed light on the underlying drivers of self-selection barriers among minorities.

Making “Habitat Quality” Meaningful: Quantifying Demographic Effects Of Habitat In Two Sympatric Species, Anna Katherine Moeller

Graduate Student Theses, Dissertations, & Professional Papers

Habitat quality may be an underlying factor driving or exacerbating mule deer (Odocoileus hemionus) population declines across their range and concurrent white-tailed deer (Odocoileus virginianus) population increases. A clearer understanding of how the two species respond to habitat variables is needed to disentangle the drivers of mule deer decline and identify opportunities to change population trajectories through habitat management. Capitalizing on extensive monitoring data for sympatric populations of mule deer and white-tailed deer, this dissertation improves understanding of habitat quality by exploring and developing modeling approaches that connect habitat and demographics in these two species.

Using a resource selection function …

Genetic Monitoring And Rescue In Mid-Atlantic Brook Trout (Salvelinus Fontinalis) Poulations, Zachary Lorn Robinson

Graduate Student Theses, Dissertations, & Professional Papers

Brook trout (Salvelinus fontinalis) populations have experienced dramatic declines throughout their native range, in part, due to anthropogenic land use and habitat fragmentation. In the mid-Atlantic region, brook trout populations often occupy small, headwater habitat fragments in demographic and genetic isolation, making them vulnerable to inbreeding and genetic drift. My dissertation evaluates different methods for genetic assessment, monitoring, and management of small, isolated brook trout populations. First, I examined the potential value of effective number of breeders (N_b) estimates for genetic monitoring by determining whether N_b estimates were sensitive to habitat characteristics known to affect …

Bacteriophage Infection Induces Intracellular Polyamine Accumulation As A Defense Mechanism In Pseudomonas Aeruginosa, Camilia Dornelles De Mattos

Graduate Student Theses, Dissertations, & Professional Papers

Cells are constantly monitoring their extracellular environment for danger signals that warn of imminent threats. When cells are killed by physical or other non-infectious injuries, they release concentrated intracellular molecules into the surrounding area. These danger-associated molecules alert other cells that danger is nearby. When cells are killed by pathogens, they release both damage-associated and pathogen-associated signals. Both eukaryotic and bacterial cells sense these molecules and make threat assessments of cellular injury. Here, I show that lysis of Pseudomonas aeruginosa and other bacterial species releases high concentrations of polyamines that are in turn taken up by surviving cells in a …

Juvenile Temperature Regulation In Apis Mellifera (Honey Bee) And The Impacts Of Brood Temperature Requirements On The Colony, Scott Debnam

Graduate Student Theses, Dissertations, & Professional Papers

Little is known about the energetic costs to insects of raising young. Honey bees collectively raise young, or brood, through a series of complex behaviors that appear to accelerate and synchronize the timing of brood maturation. These include maintaining the brood nest at warmer and consistent temperatures and the exceptional activity of "heater bees." The temperature at which juvenile insects are raised can profoundly affect their development. Apis mellifera (Honey bees) cope with temperature-dependent development via social behavior that maintains the relatively high and constant temperatures within the nest where the brood are raised. Yet juvenile honey bee development is …

The Sticks Of Judah And Joseph: Reflections On Defending The Kingdom, Joseph M. Spencer

Faculty Publications

I wish to pursue two tasks simultaneously in this essay. First, in line with its title, I will address a very old matter of interpretation. I aim to explain as definitively as possible how to make sense of the relationship between Ezekiel 37:15–19, with its talk of the sticks of Judah and Joseph, and the claims of the Restoration, which include somehow connecting the stick of Joseph to the Book of Mormon. Second, in line with the subtitle of this essay, I wish to draw a crucial lesson from the history of how Latter-day Saints have dealt with this issue …

Order Of Operations In Sociophonetic Analysis, Joseph A. Stanley

Faculty Publications

In modern sociophonetic data analysis, a researcher makes numerous decisions when processing their data. Many of the “big” decisions include how data is collected, how audio is transcribed, how these transcriptions are aligned to the audio, and how acoustic measurements are extracted. Once a spreadsheet of numbers has been generated, further decisions must be made regarding normalization, detecting and handling outliers, and excluding tokens irrelevant to the research question. This paper takes a closer look at this second group of decisions—those made after acoustic measurements have been extracted—and shows that the order in which they are applied can have significant …

How Sample Size Impacts Pillai Scores: And What Sociophoneticians Should Do About It, Joseph A. Stanley, Betsy Sneller

Faculty Publications

Pillai scores in Sociolinguistics

• A way to quantify overlap in multiple dimensions (e.g., F1, F2, duration) (Hay et al., 2006; Nycz & Hall-Lew 2013)
• Some concern about unequal vowel categories sizes (Johnson 2015; convo on Twitter June 2, 2021)
• Our solution: a big simulation to show exactly what impact sample size has on Pillai scores

The Simulation

1. Start with a single bivariate normal distribution.

2. Sample two “vowel classes” from this distribution. – Ground Truth is they’re merged.

3. Calculate the Pillai score – Should be close to 0 because they’re merged!

4. Repeat many, many times.

Vowels Can Merge Because Of Changes In Trajectory: Prelaterals In Rural Utah English, Joseph A. Stanley, Lisa Morgan Johnson

Faculty Publications

Overview

• Front vowels: tense-lax pairs getting closer in apparent time.
• Back vowels: three-way convergence of WOLF, JOLT, and MULCH.
• This data suggests a merger by approximation.

Expanding to trajectories gives greater insight into this type of merger.

• Kinda like a zipper.

Greater detail in this merger by approximation.

• The nuclei don’t appear to trigger the shift
• The lateral gradually increases its influence, and the nucleus follows.

Trajectories are potentially important for discovering how vowels shift.

• More recent techniques can allow us to answer these questions.

Mental Illness As A Vulnerability For Sexual Assault: A Retrospective Study Of 7,455 Sexual Assault Forensic Medical Examinations, Leslie Miles, Julie L. Valentine, Linda Mabey, Nancy R. Downing

Faculty Publications

Background: Persons with severe mental illness (MI) are at a high risk of becoming victims of sexual assault (SA). Vulnerability for SA with any type of MI is unknown. This study aimed to identify the prevalence of preexisting MI and other significant factors in patients reporting preexisting MI at the time of their SA medical forensic examinations (SAMFEs).

Method: A retrospective SAMFE chart review of patients ( N = 7,455) from 2010 to 2020 was conducted. Sexual assault nurse examiners completed SAMFEs. Inclusion criteria included (a) aged 14 years and older, (b) completed SAMFE with SA kit evidence collection, and …

Older Adults And Suicide As Examined Through The Lens Of Joiner's Interpersonal Theory Of Suicide, Pamela Holmes

Graduate School of Professional Psychology: Doctoral Papers and Masters Projects

Older adults face the highest rates of suicide of all age groups. The older adult population is not a homogenous group, and each age range—young old, middle old, and oldest old—has specific risk factors. Although Joiner’s interpersonal theory of suicide (IPTS) has been deemed valid among these age groups, it has not been specifically researched in older adults in each older age range. Due to lack of research and low reporting rates, not enough is known to develop specific detection and prevention measures targeting this population. This paper addresses the application of Joiner’s IPTS to both genders in each of …

"The Working World Is A Minefield": Counterstories Of Job Loss, Rachel Collier Murdock, Matt Baker, Stacy Tye-Williams

Faculty Publications

This study examines narratives told by employees who experienced involuntary job loss. Results expand on previous narrative research investigating the American Dream master narrative and job loss as related to the neoliberal claim that those who work hard will be successful. The study investigated the master narrative’s implications for job loss that if someone loses their job, they must be either flawed or a bad worker. Contributions include a new redeemed-resolved identity construction by individuals who narrated job loss as an opportunity to correct some flaw in either their character or work life and to emerge a better, changed worker. …

A Framework For Phronetic Ldt Theory, Jason K. Mcdonald

Faculty Publications

My purpose in this chapter is to offer a reimagined view of theory in the field of learning design and technology (LDT). Instead of viewing theory as an external storehouse of knowledge, or a rule-like system for professionals to apply, in this framework theory is viewed as an orienting aid that supports practitioners as they refine their personal capacities for perception, discrimination, and judgment. Theory plays this orienting role as it offers insights into LDT-relevant practical knowledge, productive heuristics, points professionals towards opportunities to act, or identifies significant patterns and forms of excellence to which they can pay attention as …

Role Of Morphological Awareness In Language And Literacy In Children With And Without Developmental Language Disorder, Melissa Phelan

Graduate Student Theses, Dissertations, & Professional Papers

Past research has shown phonological awareness is highly correlated with language and literacy success in children with and without Developmental Language Disorder (DLD), but a less examined area of language and literacy is morphological awareness. Delayed morphology in children with DLD has been studied extensively in spoken language, but relatively little in written language in the DLD population. This study explored two research questions: 1) Is morphological awareness related to language and literacy success in children with and without DLD, and 2) Is morphological awareness impaired for those children with DLD and dyslexia similarly to that of phonological awareness. A …

The Influence Of The First-Year Seminar Participation On Student Retention, Sahar Sanavi

Graduate Student Theses, Dissertations, & Professional Papers

College student retention is a complex phenomenon influenced by a myriad of factors and with wide-ranging implications for university function. First-year seminar is one approach to increase first-year student retention through involvement, engagement, and integration. This quantitative study examines the influence of first-year seminar on retention of first-year, full-time, four-year degree-seeking students who matriculated during the fall 2016, 2017, 2018 semester and remained enrolled for fall 2017, 2018, 2019 semester at six institutions in two Northwest states in the United States.

This study utilized an odds ratio to investigate whether first-year seminar participation had a statistically significant influence on the …

Unleaded: Montana’S Silent Epidemic, Erica Zurek

Graduate Student Theses, Dissertations, & Professional Papers

Lead is a cumulative toxin that can affect multiple systems in the human body. Exposure occurs through various sources, such as outdated and deteriorating infrastructure, paint, soil and drinking water. This project, a three-part audio series on lead exposure in Montana highlights various paths of exposure and how young children under age six years of age are particularly vulnerable. Part one is a story about a new state requirement to test all k-12 schools for lead in water fixtures. Part two: A house remodel exposes a family’s children to lead. Getting a diagnosis wasn’t easy. Part three: A look at …