Digital Commons Network^™

Evaluating Michigan's Food, Agriculture, And Resources In Motion (Farm) Science Lab As A Modality For Agricultural Literacy, Amelia J. Miller

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Michigan’s Food, Agriculture, and Resources in Motion (FARM) Science Lab is a 40-foot mobile classroom outfitted with 10 learning stations including scientific equipment and iPads. This quasi-experimental study analyzed preexisting data provided by Michigan Agriculture in the Classroom to evaluate the effectiveness of the FARM Science Lab mobile classroom as a method of teaching agriculture-themed, standards-based lessons to third- through fifth-grade students in order to increase their understanding of agriculture. From January through June 2018, more than 1,258 students participated in these lessons and completed the pretest and posttest and 72 teachers completed the post survey. Research questions not only …

Stochastic Geometry Based Performance Study In 5g Wireless Networks, Zekun Zhang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

As the complexity of modern cellular networks continuously increases along with the evolution of technologies and the quick explosion of mobile data traffic, conventional large scale system level simulations and analytical tools become either too complicated or less tractable and accurate. Therefore, novel analytical models are actively pursued. In recent years, stochastic geometry models have been recognized as powerful tools to analyze the key performance metrics of cellular networks. In this dissertation, stochastic geometry based analytical models are developed to analyze the performance of some key technologies proposed for 5G mobile networks. Particularly, Device-to-Device (D2D) communication, Non-orthogonal multiple access (NOMA), …

Examining Different Patterns Of Children’S Early Dual Language Development And Nonverbal Executive Functioning, Audrey C. Juhasz

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Children from non-English-speaking homes often lag behind their English speaking peers academically. However, people who speak two languages often have better executive functioning skills than people who speak only one language. Executive functions are neurologically-based skills related to managing oneself to achieve a goal. The relation between bilingualism and executive function may be due to how two languages are processed in the brain. However, it is unclear if more balanced bilinguals experience larger gains in executive function than people who are less balanced.

Children from low-income homes are at a disadvantage as compared to children from homes with higher incomes. …

Religiosity, Perfectionism, And Parenting Practices In A Latter-Day Saint (Lds) Sample, Trisha Chase

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Parenting practices greatly influence child behavior. It is important to study the relationship between parenting practices and child behavior in specific religious contexts. Members of The Church of Jesus Christ of Latter-day Saints (LDS) have not been extensively studied in the psychological literature despite there being a relatively large number of LDS individuals in the U.S. The purpose of this study was to determine the effect of religiosity on parenting practices and child behavior outcomes in an LDS sample. The influence of perfectionism on religiosity and parenting practices was also studied. The relationship between parents’ interpretation of the bible and …

Spring Precipitation In Intermountain West Influenced By Quasi-Biennial Oscillation, Jason A. Phelps

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Unusually wet spring seasons in the Intermountain West (IW) have been linked to a wind fluctuation in higher levels of the atmosphere near the equator. Strong westerly winds during October-January often result in unusually wet conditions in the following spring. Average winds near the equator at 75,000 feet above the earth’s surface can be split into different categories according to wind direction: westerly (positive), easterly (negative), and transitional. Composites of winter and spring precipitation anomalies based on these different categories show that strong westerly winds occur in October-January prior to most extreme spring precipitation events. Drier springs tend to occur …

Evaluation Of Casein Hydrolysate As An Alternative Dry-Off Treatment And Milk Quality Management Tool In Dairy Cows, Justine Elena Britten

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Mastitis, an infection of the mammary gland, is the most common and expensive animal health problem for the dairy industry and affects every dairy farm to some degree. This disease complex is painful for dairy cows, increases the on-farm use of antibiotics, presents a threat to milk quality and is a waste of time, money and milk production. Each year, the dairy industry loses as much as a billion dollars to mastitis.

Many cows will experience mastitis at least once during a lactation cycle and some animals will develop recurring mastitis episodes in a single mammary quarter. These mastitic quarters …

Experience Of Microaggressions: White Bystanders’ Physiological And Psychological Reactions, Alexandra K. Reveles

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The negative impacts of discriminatory events to the physiological and psychological stress of the recipient has been thoroughly documented. However, there is little to no evidence about the impacts to bystanders of these events, particularly White bystanders. Psychological impacts may emerge through academic achievement, which has implications for educational institutions and their diversity initiatives. This study examined the impact of witnessing discriminatory events on academic achievement, biological markers of distress, and emotional distress.

Academic achievement was negatively impacted for participants in the microaggression and blatant racism conditions when compared to a control condition. Study participants also experienced negative emotional impacts. …

Male Reproductive Infection And Sexual Transmission Of Zika Virus In An Immunocompromised Mouse Model, Chad S. Clancy

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Zika virus (ZIKV) is a sexually transmitted viral infection most frequently transmitted by mosquitoes. The source of infectious virions in the male reproductive tract has yet to be elucidated. The goals of the studies included developing and characterizing two mouse models for reproductive transmission studies and demonstration of sexual transmission of virus via artificial insemination. The mouse strains used in the study lacked receptors to interferon molecules, key signaling proteins of the host immune response. Inflammation severity was assessed during acute disease, 5-11 days after infection using a novel histopathology grading system. ZIKV proteins and genome were initially detected in …

The Ties That Bind: Identifying Connections That Facilitate Students’ Successful Re-Entry To Higher Education, Toni Asay

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The ubiquitous roadblocks to university graduation have been investigated, identified, and interrogated for 7 decades, yet the mystery of retaining students to graduation continues to elude even the most prestigious universities. This researcher’s approach to increasing graduation began with the concession that increasingly, students may leave school at some point due to one or more of the retention issues that we recognize all too well—finances, illness, family problems, pregnancies, and other educational obstacles. However, leaving school does not mean that there is no going back. Student’s dropout status changes when they re-enroll in school; they take on new identities as …

Assessing Paleoenvironmental And Geomorphic Variability In Relationship To Paleoindian Site Burial; Centennial Valley, Montana, Hillary A. Jones

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Wave action along the shores of Lima Reservoir in Centennial Valley, Montana is actively eroding the southern margins of three neighboring Paleoindian sites. Despite ostensible similarity among the sites, major site formation differences are apparent in exposed sediments. Shoreline cutbank exposures one-to-five meters high connect the sites and reveal a complicated geomorphic history. Although each site contains artifact evidence of terminal Pleistocene-early Holocene occupations, Paleoindian components at these three localities occur in very different contexts: one is buried, while the other two are apparent surface scatters. This raise the question of why sites of the same age are in both …

Emerging Security Threats In Modern Digital Computing Systems: A Power Management Perspective, Rajesh Jayashankara Shridevi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Design of computing systems — from pocket-sized smart phones to massive cloud based data-centers — have one common daunting challenge : minimizing the power consumption. In this effort, power management sector is undergoing a rapid and profound transformation to promote clean and energy proportional computing. At the hardware end of system design, there is proliferation of specialized, feature rich and complex power management hardware components. Similarly, in the software design layer complex power management suites are growing rapidly. Concurrent to this development, there has been an upsurge in the integration of third-party components to counter the pressures of shorter time-to-market. …

The Rise And Run Of Women Corporate Leaders, Alicia R. Ingersoll

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this research was to understand the contexts that support the barriers to women’s advancement and to identify the conditions under which women leaders overcome the barriers to attain top corporate leadership positions. I have identified and discussed three distinct approaches for understanding how we can increase women’s representation and influence in the executive and director ranks within top U.S. corporations. The first approach investigates the complexities of leveraging the social and cultural capital attained through post-secondary education in order gain entry into the corporate elite. The second approach examines gendered stereotypes of risk-taking versus the organizational risk-taking …

An Examination Of Seasonal Shifts In Climate And Visitation, And Perspectives On Seasonal Shifts And Climate Adaptation Strategies In Tourism And Recreation Businesses For Moab, Utah, Elizabeth Cook

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The city of Moab, an outdoor recreation hub in eastern Utah, has been encountering both shifts in the seasonality of visitation, and increases in tourist visitation, even with summer temperatures above the normal high. Tourism research describing the effects of climate change on the outdoor recreation industry has focused on winter, snow-dependent activities, while studies in Moab city have focused on the economic value of outdoor recreational activities. Few studies have described the relationship between seasonal tourism and climate change for arid desert locations. The purpose of this study is to describe how the tourism and recreation industry in Moab, …

Evaluating The Performance Diagnostic Checklist-Human Services To Treat Performance Problems Of Adults With Intellectual Disabilities, Brian H. Hess

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Unemployment is a problem for individuals with disabilities. Supported employment provides occupational supports for individuals with disabilities to get a job and keep that job once hired. The Performance Diagnostic Checklist-Human Services (PDC-HS) is used to address performance problems with employees in human services settings. This study evaluated using the PDC-HS with three adults with intellectual disabilities working in supported employment at a library cleaning shelves. The results of the PDC-HS identified insufficient training and prompting as barriers. The matched intervention package was effective in increasing performance of the shelf-cleaning task for all participants. Participant responses to a social validity …

Hydraulic Average Of Multiple Tap Sets To Improve Performance Of Venturi Flowmeters With Upstream Disturbance, Taylor Stauffer

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Venturi flowmeters have been used to measure flow in piped systems for over 100 years (Finnemore & Franzini, 2006). There has been much research on the performance of Venturi flowmeters and for that reason they have become popular flowmeters used in various municipal and industrial applications. Venturi flowmeters can be calibrated in a laboratory setting to find their performance characteristics. In order for the flowmeter to achieve optimum performance, the flowmeter should be installed with sufficient length of straight pipe immediately upstream of the flowmeter. Often Venturi flowmeters that are not installed in ideal conditions produce errors and uncertainty is …

Methods For Meta–Analyses Of Rare Events, Sparse Data, And Heterogeneity, Brinley Zabriskie

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The vast and complex wealth of information available to researchers often leads to a systematic review, which involves a detailed and comprehensive plan and search strategy with the goal of identifying, appraising, and synthesizing all relevant studies on a particular topic. A meta–analysis, conducted ideally as part of a comprehensive systematic review, statistically synthesizes evidence from multiple independent studies to produce one overall conclusion. The increasingly widespread use of meta–analysis has led to growing interest in meta–analytic methods for rare events and sparse data. Conventional approaches tend to perform very poorly in such settings. Recent work in this area has …

Three Essays On Land Property Rights, Water Trade, And Regional Development, Muyang Ge

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This dissertation explores how property rights to a natural resource affect economic decisions for investment or sale, and how these decisions may in turn impact other areas of the economy. The first essay focuses on how incomplete land ownership on Indian Reservations in the United States affects landowner incentives to engage in agricultural production. The second essay explores how the transfer of water in arid regions via water right sales affects local labor markets and environmental outcomes. The third essay seeks to understand how shale-gas drilling has affected organic food production. This dissertation provides several policy implications. First, the findings …

Understanding Industry’S Expectations Of Engineering Communication Skills, Lilian Maria De Souza Almeida

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The importance of communication in the engineering profession is widely acknowledged by various stakeholders, including industry, academia, professional engineers, and engineering students. Even though alternative strategies to help students improve their ability to communicate professionally have been approached by many engineering programs across the country, research indicates a continued dissatisfaction of employers when it comes to the performance of engineers as communicators in the workplace. This perspective suggests efforts to improve students’ communication skills in universities may be inconsistent with workplace needs, revealing an apparent gap between what is taught and what is expected from engineering professionals. This gap provides …

The Impact Of Federal Lands On Per-Pupil Spending In The Western United States, Matthew K. Anderson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Property taxes are a significant form of funding for states’ public education. In the West, nearly half of the land is owned by the federal government, making it off limits to tax. This research examines the relationship between federal land and its impact on per-pupil spending.

The Development, Implementation, And Assessment Of A Home Component To The Fit Game Healthy Eating Program, Hali King Obray

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Researchers at Utah State University created a school intervention called the FIT Game that has successfully increased children’s vegetable intake during lunchtime. The aim of this project was to create a home aspect to the FIT Game for parents that would increase the availability of vegetables within the home. Studies within this thesis discuss the development and revision of parent newsletters for the FIT Game program, as well as the implementation and assessment of the revised newsletters. Results from the assessments indicate that providing parent newsletters is not enough to change the vegetable availability at home.

This home component was …

Death Ends A Life Not A Relationship: The Embodied Mourning And Memorializing Of Pets Through Material Culture, Gemma N. Koontz

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Many individuals develop strong bonds with their pets, viewing them as close “furry” friends or family. When these beloved companions die, both their relational and physical absences are deeply felt. Lacking socially recognized rituals to mourn and memorialize their pets, owners turn to and adapt traditional “human practices,” primarily that of keeping meaningful or significant items of the deceased.

Using both personal experiences and perspectives from multiple fields, this thesis discusses the life-cycle of the human-animal bond, examines the types of items owners keep or create, and how these are used to facilitate both mourning (the outward expression of grief) …

Fire - Herbivory Interactions In An East African Savanna: Effects On Acacia Drepanolobium Trees, Eric M. Lamalfa

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Globally, changes in plant community structure have occurred in ecosystems where humans have altered natural disturbance regimes. Many plants have adaptive life histories and morphological traits that have coevolved with fire and herbivory, which allows them to thrive despite repeated tissue losses. Therefore, altering the type, frequency, or severity of disturbance affects individual plant growth and competition among species. When these changes benefit or disadvantage different plant functional groups (i.e., grasses, shrubs, trees) it alters ecosystem structure and function. Understanding and predicting these vegetation changes, is critical for conservation and management of biodiversity, wildlife habitat, livestock forage, and water.

Savannas …

Micro- To Macro-Scale Structural And Lithological Architecture Of Basal Nonconformities: Implications For Fluid Flow And Injection Induced Seismicity, Garth Hesseltine

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Rising incidents of earthquakes caused by human activity in the United States, known as induced earthquakes, is a growing concern. Induced earthquakes may occur when fluid and/or wastewater is injected several kilometers beneath the Earth’s surface into sedimentary rocks. Fluids and pressures can migrate from the sedimentary rocks, which are typically friendlier to fluid flow, into underlying less friendlier crystalline rocks along fluid pathways weakening and possibly reactivating preexisting faults. Understanding potential fluid pathways and/or barriers from the sedimentary rocks to crystalline rocks is crucial. I investigate the structure, composition, and heterogeneity of rocks near the contact between the sedimentary …

The Organic Wheat Market: Three Essays On Pricing, Consumer Segments, And The Importance Of Labels, Tatiana Drugova

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This dissertation aims to address issues related to supply and demand of organic wheat either as a commodity or contained in the final consumer products. Objectives for the first essay are to evaluate organic wheat price and premium risk, how it affects the profitability of organic wheat production, and examine whether hedging and forecasting can be used to manage the organic wheat price risk. A side objective is to apply and evaluate several data imputation methods to recover missing organic wheat price observations. Objectives for the second essay are to identify “very likely,” “likely,” and “unlikely” consumers of organic wheat …

Estimating Upper Red Butte Watershed Contribution To Salt Lake Valley Water Resources, Sal Bir Limbu

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Water is crucial for domestic, agricultural, industrial, environmental, and hydropower uses. Once precipitation occurs, it eventually partitions into streamflow, evapotranspiration (ET), and groundwater recharge. Distribution of precipitation into these partitions is called a hydrologic budget. The hydrologic budget of any geographic area or watershed under different climate change conditions help water managers to make appropriate water management plans. Computer based hydrologic modeling software has been used extensively to solve many water resources problems including hydrologic budgets. Hydrologic modeling requires high quality weather parameter data.

This study projected surface and groundwater flows from the portion of RBC watershed that lies above …

Student Perceptions Of Connectedness At The American International School Of Utah, Diane Longhurst Johnson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Connectedness has been identified as a powerful protective factor for adolescents. This study focused on the extent to which secondary students at the American International School of Utah (AISU) report perceptions of connectedness. Specifically, this work focused on school-level factors. It examined the extent to which participation in the school-wide interventions of Crew and Intensives influence perceptions of connectedness among AISU secondary students. Data collected provided insights about perceptions of connectedness within the AISU environment that may be used to inform current practices, identify additional student support needs, and improve future implementations.

An Explanatory Sequential research design was used. This …

Reducing Road Wear While Ensuring Comfort And Charging Constraints For Dynamically Charged Passenger Vehicles Through Noise Shaped Control Inputs, Clint Jay Ferrin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Dynamically charged vehicles suffer from power-loss during wireless power transfer due to vehicle coil misalignment while driving. Autonomous dynamically charged vehicles can maximize wireless power transfer by following an optimal charging path, but the repeated precision increases road wear. To avoid unnecessary road wear and rutting, a path planner can intentionally inject variability into an autonomous vehicle’s path. However, introducing variability into an optimal charging path risks depleting battery life prior to destination arrival, and it increases rider discomfort. Therefore, a path planner is proposed that guarantees average charging criteria and ensures rider comfort while reducing road wear.

Monitoring Desert Ungulates Via Fecal Dna-Based Capture Recapture, Stephen S. Pfeiler

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Estimates of population abundance and survival are critical for effective wildlife management. Obtaining estimates of these kind using traditional wildlife monitoring techniques (i.e. ground and aerial surveys) has proven to be difficult, especially for species that are wide ranging and exist in small, patchily distributed populations.

My objective was to implement fecal DNA-based capture-recapture surveys to estimate abundance and survival of two different ungulate populations that inhabit the deserts of southeastern California. I also compared fecal DNA-based capture-recapture techniques to traditional methods by evaluating the costs and precision associated with both methods. Using artificial water sources as focal sampling sites, …

Visible Light-Triggered Carbon Monoxide-Releasing Molecules, Marina Popova

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Carbon monoxide (CO) is now well established as one of the signaling molecules in higher organisms, including humans. Due to its physiological roles, CO is now accepted as a potential therapeutic agent. The use of CO gas has been studied in multiple clinical trials. Vasodilation, anti-inflammatory, anti-apoptotic, anti-proliferative and cytoprotective effects are just a few of the pharmacological actions attributed to CO gas in various models of diseases. Use of inhaled CO gas as a therapeutic has many limitations which necessitate the development of a new approach for CO delivery. In order to handle CO safely, compounds that release CO …

Micromechanics-Enriched Finite Element Modeling Of Composites With Manufacturing Or Service-Induced Defects, Alden S. Hyde

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Composite materials are increasingly used in many industries due to the high strength and low weight properties that they exhibit. Since composites are becoming more popular, they are being used in applications such as aircraft, boats, wind turbine blades, and even sports equipment. Composite behavior is complicated since they are made up of two completely different materials such as strong thin fibers and a relatively weaker resin material that hold the fibers together. It is becoming more important to understand how composites behave in different situations so that equipment designers have reliable material information in order to design safe products …