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The Pillar: Newsletter Of The St. Mary's University School Of Law Center For Legal And Social Justice, St. Mary's University School Of Law

The Pillar

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Latent Classes Of Self-Reported Adolescent Depression In A Clinical In-Patient Population, Jonathan F. Doti

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The depressive disorders are among the most common mental health problems with substantial financial and quality-of-life costs. Depression has generated considerable debate as to the underlying structure/taxonomy and continues to be frequently debated. Adolescents who meet diagnostic criteria for major depressive disorder often experience anxiety (and vice versa). Therefore, understanding the underlying structure of depression as well as the co-occurrence of anxiety in a population of adolescents adds to our conceptual understanding of these disorders and facilitates treatment clarity.

This investigation sought to investigate the following research questions for adolescents’ self-reported symptoms of depression, and self-reported symptoms of depression and …

Cross Flow Filtration For Mixed-Culture Algae Harvesting For Municipal Wastewater Lagoons, Misheka Wilson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The City of Logan Environmental Department has a goal to remove chemicals from the municipal wastewater that can cause algae growth in Cutler Reservoir that will impair use for recreation. The proposed plan to accomplish the goal is to grow algae within the 460-acre Logan Lagoon wastewater system, and then remove the algae from the treated wastewater that enters Cutler Reservoir. The collected algae may be used to produce biodiesel to fuel the City solid waste vehicles. The City will coordinate the development and implementation of this project with the assistance of the Utah State University Biological Engineering Department. The …

Planning, Acting, And Learning In Incomplete Domains, Christopher H. Weber

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The engineering of complete planning domain descriptions is often very costly because of human error or lack of domain knowledge. Learning complete domain descriptions is also very challenging because many features are irrelevant to achieving the goals and data may be scarce. Given incomplete knowledge of their actions, agents can ignore the incompleteness, plan around it, ask questions of a domain expert, or learn through trial and error.

Our agent Goalie learns about the preconditions and effects of its incompletely-specified actions by monitoring the environment state. In conjunction with the plan failure explanations generated by its planner DeFault, Goalie diagnoses …

Modeling Spatial Surface Energy Fluxes Of Agricultural And Riparian Vegetation Using Remote Sensing, Hatim M.E. Geli

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Evapotranspiration (ET) represents the amount of water consumed by vegetation through transpiration plus the direct evaporation from the soil surface. Understanding the amount of ET is important as it represents a portion of fresh water that is consumed and not available for further use. ET is used as indication of how much water needed for agricultural activities. This research is aimed towards providing improved estimates of ET.

The technological advances in remote sensing provide us with images of the Earth’s surface from space, using satellites, and sometimes with more detail from aircraft. We used these data in …

Biochemical Characterization Of Sac9, A Putative Phosphoinositide Phosphatase In Arabidopsis Thaliana, And Its Role In Cellular Abnormalities, Almut H. Vollmer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Since the early colonization of land by fungi and plants some 700 million years ago, plants have been continuously faced with changes in their environment. Unlike animals, plants are not free to move about, and can therefore not evade many stress factors. How plants sense and respond to their environment has been of interest not only to scientific research but also in more practical applications such as agriculture.

Signals (such as light or salinity) from the outside of plant cells trigger a flow of information to the inside of the cell. The final target for most of the information is …

Robust Computational Tools For Multiple Testing With Genetic Association Studies, William L. Welbourn Jr.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The mapping of the human genome and the completion of the Human HapMap project over the past decade have significantly altered how research is conducted with respect to the genetic epidemiology of human disease. Study designs and analytic approaches have evolved rapidly from investigations involving relatively few targeted candidate genes to hypothesis-free genome-wide association studies, where thousands – and now even millions – of single molecular mutations are simultaneously analyzed to identify regions of the genome that may influence disease. As laboratory techniques continue to improve and costs decrease, the volume of genetic data will inexorably rise, and robust tools …

Outcomes And Presurgical Correlates Of Lumbar Fusion In Utah Workers' Compensation Patients: A Replication Study, Jessica M. Gundy

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Over the past 2 decades, lumbar fusion surgeries performed in the United States have increased dramatically, particularly for compensated workers. Costs for these procedures have also risen substantially in the past decade, primarily due to the use of more sophisticated surgical devices such as interbody fusion cages. While surgical instrumentation and technology may improve the rates of solid bony vertebral fusion, overall improvements in quality of life and pain outcomes related to this new technology are still inconclusive.

In collaboration with the Workers Compensation Fund of Utah (WCFU) and Utah State University (USU), a psychology professor, Dr. M. Scott DeBerard, …

Explaining The Paradox: Perceived Instructor Benefits And Costs Of Contributing To Massachusetts Institute Of Technology Opencourseware, Preston Paul Parker

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Massachusetts Institute of Technology (MIT) OpenCourseWare (OCW) project offers potential benefits and costs to three main categories of people: users, the
institute itself, and the instructors who provided the materials to the project. Little is known about the benefits and costs of the instructors, so that is what this study examines. Instructors put together the original educational materials and would seem to have the most to lose by contributing to OCW.

It appears that instructors recognize benefits of: (1) improved reputation, (2) networking, (3) supplementary opportunities, (4) improved course content, (5) course
feedback, (6) students accessing materials, and (7) …

Exploring Aspects Of Strong Remarriages, Marci Campbell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Remarriage is often studied with a focus on the difficulties associated with the complexities of remarriage. The focus of this study was to explore aspects of strong remarriages. Ten couples that had been remarried for 5 years were interviewed separately about their strong remarriage. Prevalent topics were compiled and organized into factors that contribute to a strong remarriage. These factors include: commitment, love, religion/spirituality, communication, compatibility, financial agreement, and physical intimacy. Additionally, expectations of remarriage were explored. The majority of the individuals expressed that their remarriage exceeded their expectations. A discussion of suggestions for future research is included.

A Study Of Mothers’ Perceptions And Practices Of Kindergarten Readiness, Kirsten Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was conducted to understand what mothers with children enrolled in a developmentally appropriate preschool program believe and are actually doing to help prepare their children for kindergarten, something of key importance, as kindergarten success is a foundation for later school success. There is very little research on the topic of parental perceptions and practices in kindergarten readiness and the transition into kindergarten.

A survey was sent home to 60 families who had their child enrolled in the Adele and Dale Young Child Development Laboratory at Utah State University during the 2010-2011 school year. In the survey, parents were …

Increasing The Retention Of Lipid-Soluble Components In A Curd Matrix, Megan Tippetts

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Megan Tippetts, under the direction of Dr. Silvana Martini at Utah State University, proposes to demonstrate that it is possible to increase the retention of lipid-soluble components (e.g. vitamin D) in a curd matrix (e.g. Cheddar cheese). This project was coordinated with the Western Dairy Center for the initial phase of the project.

The initial phase used vitamin D₃ fortified emulsions stabilized with a dairy-based emulsifier. The objective was to determine if vitamin D₃ delivered in an emulsion form to the milk before cheesemake would have higher retention in the cheese versus vitamin D₃ oil added directly …

Assessing And Enabling Independent Component Analysis As A Hyperspectral Unmixing Approach, Matthew R. Stites

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Perhaps the most common way to distinguish materials is by color. For example, this is typically how one determines, from some distance, whether a material on the ground is grass (green), soil (brown), or asphalt (black). To accomplish this, most digital cameras (along with the human eye) produce images that are comprised of three different colors, called spectral bands: red, green, and blue. The combination of these bands enables material discrimination. Working in the same way, but on a much larger scale, hyperspectral imaging sensors produce images that are comprised of hundreds of spectral bands. This combination of bands enables …

Social Organization And Decision Making In North American Bison: Implications For Management, Ryan A. Shaw

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Social organization varies widely among herbivores, and the level of social organization in bison is widely debated. I hypothesized that when mother-daughter relationships are allowed to develop, bison form long-term associations. In my study, 25 treatment mothers were selected from a free-ranging herd and kept together with their calves, while 25 control females had their calves forcefully removed. Treatment mothers and offspring had by far the greatest number of associations with a greater percentage of individuals with a half weight index (HWI) > 0.50. The strongest associations (HWI > 0.31) were among treatment mothers and their offspring. Moreover, these associations persisted over …

Systematics Of Multillidae (Hymenoptera) With Special Emphasis On Dasymutilla And Their Allies, Kevin A. Williams

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Velvet ants are solitary wasps that are excellent candidates as model organisms for studying evolutionary phenomena like mimicry and biogeography. They can also be used in conservation studies because of their local abundance. Their abundance, coupled with parasitic lifestyle on native pollinators, suggests they will be economically important as native pollinators are implemented more widely. Velvet ants, however, are rarely studied and their research potential is drastically hindered by lack of phylogenetic and taxonomic data and lack of interest in the scientific community. In this dissertation, I sought to overcome the hindrances to mutillid research with a holistic systematic research …

The Role Of Fine-Scale Habitat Associations In Structuring Spider Assemblages: Determinants Of Spatial Patterns In Community Composition, Stephanie M. Cobbold

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Ecologists strive to identify the mechanisms that drive the identity and abundance of species in different locations, because a better understanding of such factors enables them to better predict the effects of habitat modification on organisms, and to identify landscapes in which species are likely to benefit from conservation interventions. However, there is still no consensus on the mechanisms behind geographical variation in species diversity. The primary objective of this dissertation was to focus on spider assemblages to investigate how the fine-scale habitat associations of organisms may drive the composition of their communities at larger scales. Research was conducted in …

Spider Community Composition And Structure In A Shrub-Steppe Ecosystem: The Effects Of Prey Availability And Shrub Architecture, Lori R. Spears

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Habitat structure is cited as an important factor influencing organisms, but few studies investigate whether habitat structure interacts with other environmental variables to affect community dynamics. The purpose of this study was to determine, using field experiments, the importance of prey availability and shrub architecture on a spider community in northern Utah, USA. We were also interested in determining whether surrounding shrub architectures influence spider and prey responses.

Our results suggest that spider distribution, abundance, and biodiversity are influenced by shrub architecture. Shrub architecture influenced spiders both directly and indirectly via associated changes in prey availability. Spiders were also directly …

Problem Solving In Latino Families, Eliza Torres

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this dissertation is to learn if the quality of problem solving, parent engagement, and child engagement improve as a result of participating in a parenting intervention. The quality of problem solving was coded by independent observers watching a 5-minute videotaped task. Parent and child engagement were also coded by an observer and were evident in behaviors such as making eye contact, using good social skills, using humor, minimizing problems, and showing empathy were also rated by individual coders who were blinded to treatment/control groups. Each parent-child pair had a total of three scores, one for each variable …

Planning And Management Modeling For Treated Wastewater Usage, Leila Ahmadi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Population growth, urbanization and water scarcity in many parts of the world has resulted in transfer of agricultural water to municipal and industrial users on one hand and excessive production of wastewater on the other hand. Due to importance of agriculture in food production and in the economy of many regions around the world,
water resources management and considering new water resources (such as treated wastewater) is critical.This study focused on analyzing the effects of population and
urban growth on water demand for various users and municipal wastewater quantity changes; as well as investigating the feasibility of wastewater reuse projects. …

Duckweed Uptake Of Phosphorus And Five Pharmaceuticals: Microcosm And Wastewater Lagoon Studies, Jonathan Bay Farrell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Utah State University students under the direction of Dr. R. Ryan Dupont, Environmental Engineering, have been enthusiastically involved in researching ways to improve wastewater treatment at the nearby Wellsville Municipal Sewage Lagoons. Wellsville City, along with several other Cache Valley communities, has experienced some problems with their current wastewater facility, particularly with phosphorus removal, which will become more difficult to address as the population increases in the future. Excessive phosphorus causes unappealing algae blooms in ponds and reservoirs while also posing a threat to local fish. Brittany Wilkes, Brett Housley, and Naho Orita first looked into reducing phosphorus discharge by …

Web Usage Mining: Application To An Online Educational Digital Library Service, Bart C. Palmer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This dissertation examined how users of the Instructional Architect (IA; http://ia.usu.edu) utilized the system in order to find online learning resources, place them in a new online instructional activities, and share and use them with students. The online learning resources can be found in educational digital libraries such as the National Science Digital Library (NSLD; http://nsdl.org) or the wider Web. Usage data from 22 months of IA use were processed to form usage features that were analyzed in order to find clusters of user behavior using latent class analysis (LCA).

The users were segmented into two samples with 5–90 and …

Livestock Foraging Behavior In Response To Sequence And Interactions Among Alkaloids, Tannins, And Saponins, Tiffanny L. Jensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During the past several decades, people worldwide have expressed a growing interest in reconstructing ecosystems to enhance ecological, economic, and social values. Yet, to do so we must find ways to enhance biodiversity, environmental quality and the sustainability of grazing lands. In all these instances, plants are the glue that binds soils, water, herbivores, and people. However, monocultures or simple grass-legume mixtures are not always ideal for intensively managed pastures due to their seasonality, susceptibility to pests, and monotony of plant nutrients and toxins. All plants contain so-called “toxins,” more appropriately referred to as secondary compounds, which are crucial in …

Dads' Parent Interactions With Children-Checklist Of Observations Linked To Outcomes (Piccolo-D): Developing An Observational Measure Of Father-Child Interaction, Sheila Anderson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Intervention programs providing support for father parenting skills need a practical but psychometrically strong observational measure of fathers’ early positive parenting interactions with children. The primary purpose of this project was to develop a valid, reliable observational measure of father-child interaction, based on research and theory, that predicts child outcomes, identifies fathers’ strengths, and will be useful for home visiting practitioners. This study sought to fulfill this need by developing a new measure called Dads’ Parenting Interactions with Children—Checklist of Observations Linked to Outcomes (PICCOLO-D) for home visitors to use to identify fathering strengths. Developed with extant video observations of …

Knowledge, Norms And Preferences For Tamarisk Management In The Green And Colorado River Corridors Of The Colorado Plateau, E. Clay Allred

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This research was created collaboratively between the National Park Service and Utah State University as an explorative study addressing social implications of tamarisk management. It has created a stronger partnership between the university and the National Park Service in Moab, Utah. Through this research, Utah State University was able to find valuable social science data to aid public land managers in the planning and management of tamarisk control on the Colorado Plateau. Utah State funded a research assistant for one year to perform this research, totaling approximately $16,000.

This study focused on finding river user knowledge, preferences, and norms for …

Research Into The Utility Of Standards In Foreign Language Instruction: A Case Study Of Methods Used In The High School Setting, Paul S. Kirby

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Given the increased emphasis on language acquisition in public education, and in university, government, and military settings there will be an increased focus on the
language classroom. My goal in this study was to investigate how five foreign language instructors in the Salt Lake metropolitan area perceived and implemented the national standards disseminated by the American Council for the Teachers of Foreign Language (ACTFL) known as the five Cs. These standards have also been adopted by the Utah State Office of Education (USOE). A broadened understanding was achieved through analysis of structured interviews, direct observation of foreign language instructors, evaluation …

In Vitro And In Vivo Comparison Of The Pathogenicity Of Four Influenza Virus Strains, Brett L. Hurst

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Influenza viruses cause between 3 and 5 million cases of respiratory infection each year and are responsible for between 250 and 500 thousand deaths. Two avenues for the treatment and prevention of influenza virus infections are vaccination and antiviral chemotherapy. Prevention is largely accomplished through vaccination. While vaccines remain the preferred method for controlling the spread of influenza, antiviral treatment is important for severe infections caused by new and emerging virus strains. Occasionally new viruses emerge to which the population has no previous immunity. Such was the case when the pandemic H1N1 influenza virus appeared in 2009. When new viruses …

The Intersection Of Multiple Oppressed Identities: Implications For Identity Development, Angela Marie Enno

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Understanding the experiences and identity development of ethnic minority LGBTQ (lesbian, gay, bisexual, transgender and queer or questioning) individuals presents a challenge because the theories of identity development that exist to date may not take into account their unique perspectives. Theories of identity development that are not specific to ethnic minority or LGBTQ identities may not represent their experiences well. At the same time, theories of ethnic identity development may not fit for individuals who are LGBTQ; and theories of LGBTQ identity development may not fit for ethnic minorities. No theory of identity development to date takes into account all …

Rationalizing Structure, Stability, And Chemical Bonding Of Pure And Doped Clusters Isolated And Solvated Multiply Charged Anions, And Solid State Materials, Alina P. Sergeeva

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Chemistry is the study of materials and the changes that materials undergo. One can tune the properties of the known materials and design the novel materials with desired properties knowing what is responsible for the chemical reactivity, structure, and stability of those materials. The unified chemical bonding theory could address all these questions, but we do not have one available yet. The most accepted general theory of chemical bonding was proposed by Lewis in 1916, though Lewis’s theory fails to explain the bonding in materials with delocalized electron density such as sub-nano and nanoclusters, as well as aromatic organic and …

Use Of Rumen Modifiers To Manipulate Ruminal Fermentation And Improve Nutrient Utilization And Lactational Performance Of Dairy Cows, Christopher M. Dschaak

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A series of lactation studies reported in this dissertation hypothesized that supplementing different rumen modifiers would have consistent responses on ruminal fermentation and lactational performance under optimal rumen conditions.

The first experiment investigated the influence of magnesium exchanged zeolite on ruminal fermentation and lactational performance. Intake of dry matter (DM), milk yield, milk fat, and feed efficiency were not affected. Milk protein concentration tended (P = 0.15) to be higher for cows fed the zeolite. Ruminal pH tended to increase (P = 0.11) by feeding the sodium bicarbonate or the zeolite.

A second lactation experiment determined …

Exploring A Stable Aspen Niche Within Aspen-Conifer Forests Of Utah, Cody M. Mittanck

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study addresses a critical issue faced by resource managers confronting aspen restoration projects in the Intermountain West. Quaking aspen (Populus tremuloides Michx.) forests have received a large amount of popular and academic attention over the last decade due to concerns over decline. As a result, both private and public forest resource managers have focused attention on actively restoring aspen communities through treatments such as prescribed burning, logging, and grazing exclosures to name a few. There is increasing evidence suggesting the existence of "stable" aspen communities. This community type undergoes processes entirely different from successional aspen communities and …