Digital Commons Network^™

To Belong As Citizens: Race And Marriage In Utah, 1880-1920, Scott D. Marianno

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In the decades leading up to the twentieth century, social reformers and politicians, alarmed by Mormon political control (and polygamy) in Utah Territory, challenged Mormon whiteness and their competency for American citizenship. In re-examining Mormonism’s transition period, this study reveals how Mormon conformity to an encroaching American culture increased the movement’s exposure to discursive arguments on race-mixing, marriage, and eugenics that helped legitimize Mormon citizenship claims. Focusing on the themes of race, marriage, and citizenship, this thesis examines Mormonism’s racial transformation from not white to white as they assimilated and reified the racial ideology promoted by their Progressive-era contemporaries and …

Beef Average Daily Gain And Enteric Methane Emissions On Birdsfoot Trefoil, Cicer Milkvetch And Meadow Brome Pastures, Lance R. Pitcher

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Conventional production of meat products from ruminant animals in the United States requires inputs including the cultivation and nitrogen fertilization of annual grains such as corn and barley, and transportation of cattle and grain to feedlots. Consumers have concerns about the impact of feedlot conditions on animal health, and about the implications of pharmaceutical inputs such as growth hormones and antibiotics on the environment and human health. These concerns have led to a growing interest in pasture-finished meat production by consumers. Such smaller-scale livestock production systems can be healthier and lower-stress for animals, are integrated into local food systems and …

Microfabrication Of Bio-Analytical Devices: Microelectrode Array And Traveling-Wave Electrophoresis, Neil Draper

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The need for potable water is increasing with the ever-increasing world population. Further development of fast, portable, and cost effective analytical tools is necessary in order to create diagnostic techniques capable of supporting the water needs of the world’s population. Within the last decade microfluidics and Lab-on-a-Chip (LOC) technologies have increased the portability and speed of detection for aqueous samples. Photolithography techniques serve as a cost effective fabrication tool to create LOC electrodes on the micron scale.

An in-depth look at the fabrication process is undertaken in this paper in order to further the development of micro-scale detection techniques. An …

The Fate Of Pharmaceuticals And Personal Care Products In Conventional And Engineered On-Site Wastewater Drain Fields, James Beardall

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Utah State University Division of Environmental Engineering student, under the direction of Ms. Judith L. Sims, has investigated the fate of six pharmaceuticals and personal care products (PPCPs) in conventional and engineered on-site wastewater drain fields. The presence of PPCPs in the environment, especially in aquatic environments, has raised awareness to the effects of PPCPs on aquatic life and the fate of these PPCPs, and has caused regulators to become more involved in setting requirements for the removal of PPCPs from wastewater.

This research investigated the fate of caffeine, acetaminophen, carbamazepine, sulfamethoxazole, progesterone, and fluoxetine in laboratory scaled columns that …

Effects Of Beef Finishing Diets And Muscle Type On Meat Quality, Fatty Acids And Volatile Compounds, Arkopriya Chail

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Consumer evaluation, proximate data, Warner-Bratzler shear force (WBSF), fatty acid (FA) composition and volatile compounds were analyzed from the ribeye steaks (LT) finished on conventional feedlot (FL) and forages, including a perennial legume, birdsfoot trefoil (BFT; Lotus corniculatus), and a grass, meadow brome (Bromus riparius Rehmann, Grass). Representative retail forage (USDA Certified Organic Grass-fed, COGF) and conventional beef (USDA Top Choice, TC) were investigated (n = 6) for LT. Additionally, the effects of diet on round (GM) and chuck (TB) muscles FL, BFT and Grass were explored. Forage-finished beef was less liked in most of the affected …

Identifying Factors Common Among Students Who Do Not Fit The Typical Mathematics Self-Efficacy And Achievement Correlation, Jodi H. Mantilla

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A student’s self-efficacy, or their belief in their ability to perform a specific behavior, has been shown to have a positive correlation with their academic achievement. In other words, if their self-efficacy is high, their academic achievement is high. If self-efficacy is low, likewise their achievement is low. Research has shown that this correlation is especially true when looking at the self-efficacy and academic achievement in a specific subject, such as mathematics. However, in a typical classroom, teachers experience students who have very high self-efficacy in their mathematics abilities yet perform mathematics tasks at a low level. They may also …

Factors Influencing The Ecology Of Greater Sage-Grouse Inhabiting The Bear Lake Plateau And Valley, Idaho And Utah, Casey J. Cardinal

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Greater sage-grouse (Centrocercus urophasianus; sage-grouse) are a sagebrush obligate species and as such an indicator of sagebrush (Artemisia spp.) habitat quality and quantity. Sage-grouse populations have declined across western North America. This decline has been attributed to habitat loss and degradation of the sagebrush ecosystem. To determine factors that may cause localized declines in sage-grouse populations, managers may need site-specific information on the ecology and habitat use patterns of meta-populations. This information is currently lacking for sage-grouse populations that inhabit the Bear Lake Plateau and Valley (BLPV), encompassing parts of Idaho, Utah and Wyoming. I captured, radio-marked …

Ego-Identity And Long-Term Moratoria: Associations With College Attendance And Religious Volunteerism, Mark A. Jackson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The objective of this study was to examine the extent to which college experiences and participation in religious missionary service for an extended period were associated with ego-identity development, specifically in terms of identity exploration and commitment. A sample of late adolescents (N = 425), all of whom had participated in at least some college and of whom 122 had volunteered as LDS missionaries, provided information about their college/missionary experiences that could be related to identity development and reported levels of identity exploration and commitment.

Results indicated that LDS postmissionaries and LDS non-postmissionaries differed significantly only in the variables …

Modeling Seed Dispersal And Population Migration Given A Distribution Of Seed Handling Times And Variable Dispersal Motility: Case Study For Pinyon And Juniper In Utah, Ram C. Neupane

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The spread of fruiting tree species is strongly determined by the behavior and range of fruit-eating animals, particularly birds. Birds either consume and digest seeds or carry and cache them at some distance from the source tree. These carried and settled seeds provide some form of distribution which generates tree spread to the new location. Firstly, we modal seed dispersal by birds and introduce it in a dispersal model to estimate seed distribution. Using this distribution, we create a population model to estimate the speed at which juniper and pinyon forest boundaries move.

Secondly, we introduce a fact that bird …

Sexual Orientation Change Efforts, Identity Conflict, And Psychosocial Health Amongst Same-Sex Attracted Mormons, John P. Dehlin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Both religiosity and sexuality are acknowledged by the American Psychological Association as important considerations for overall psychosocial well-being. Consequently, the denunciation of same-sex sexuality as sinful by many religious organizations leads many lesbian, gay, bisexual, and transgender individuals to experience significant identity conflict. Historically, conservative religious institutions such as The Church of Jesus Christ of Latter-day Saints (Mormons) have offered
developmental (i.e., nonbiological) explanations as to the origins of same sexuality, along with various nonaffirming approaches including: (a) sexual orientation change efforts, (b) increased religious devotion, (c) celibacy, and (d) mixed-orientation (heterosexual) marriage. However, relatively little research has been conducted …

Effect Of Manufacturing Processes On The Loss Factor And Other Mechanical Properties Of Kenaf Fiber-Reinforced Composites, Brian P. Spackman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The characteristics essential for manufacturing parts and products are not well known for natural fiber-reinforced composite materials. Natural fibers display properties similar to glass fibers, and present a more environmentally friendly option for manufacturing composite materials. This research investigates various parameters in the manufacture of kenaf fiber-reinforced composites including cure time, density, matrix hardener ratio, surface treatment, and fiber length and examines the effect they have on mechanical properties of the composite material. Several samples were created and subjected to a vibrational test. Using known relationships, mechanical properties were extracted from the test results. Samples were found to exhibit repeatable …

Molecular Sensing And Imaging Of Human Disease Cells And Their Responses To Biochemical Stimuli, Lifu Xiao

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Advancement in microscopic and spectroscopic techniques could significantly improve our ability in the study and diagnosis of diseases. Especially, being able to image and detect human diseases at the cellular and molecular level allows people to diagnose diseases at early stages and to study the molecular mechanisms behind various diseases. Currently, histopathological techniques are most widely used for prognosis and diagnosis of human diseases. However, conventional histopathology requires a complex process of sample preparation, which limits the diagnostic efficiency of this technique. More importantly, it requires fixation of tissue or cell sample, making it unsuitable for the study of dynamic …

Techno-Economic Feasibility And Life Cycle Assessment Of Dairy Effluent To Biofuel Via Hydrothermal Liquefaction, Hailey M. Summers

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Delactosed whey permeate (delac) is a low valued by-product in the dairy industry with 90 million tons annually disposed of worldwide. Upgrading delac to bioproducts, specifically biofuel, has been demonstrated at laboratory scale through yeast fermentation. However, the large-scale environmental impact and economic feasibility of this process is yet to be quantified. Further research, focused on evaluating the sustainability, scalability and economic feasibility of the fermentation pathway, directs research and development to move the technology towards commercialization. The enclosed research incorporates biological experimentation with engineering systems modeling to evaluate the large-scale environmental impacts and economic feasibility of generating bioproducts from …

Spatial Temperature Variation In Refrigerated Road Transport, Joseph D. Phoenix

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study evaluated the temperature variability that existed in refrigerated table grape consignments over a two-day journey from two suppliers in southern Spain, to client managed facilities in England. In order to inhibit senescence, perishable foods are transported in temperature-controlled transport to maximize shelf life. However, thermal dynamics suggests that uniform spatial temperature is not necessarily achieved despite a constant set point. As fruit exposed to suboptimal temperatures is more likely to exhibit undesirable quality issues, knowledge of spatial temperature can direct quality control team members to these potentially problematic pallets within an inbound shipment.

Warmer temperatures were identified on …

Relationship Of Nutritional Factors To Cognitive Decline In The Progression Of Dementia: The Cache County Dementia Progression Study, Chelsea Sanders

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Cache County Memory Study at Utah State University studied longitudinal changes in memory and aging in a population-based sample of 5,092 older adults in semirural Cache County, UT. Three hundred twenty-eight participants with dementia were identified through a multi-staged screening and assessment protocol and visited semiannually for up to 8 years in the Dementia Progression Study (DPS). The current project reviews data from the first 6 years due to attrition in later years. Researchers collected information regarding the participants’ demographics, health, lifestyle (nutrition and physical activity), cognitive abilities and neuropsychiatric symptoms as well as their caregivers’ demographics, health, and …

Grass-Shrub Spatial Associations Over Precipitation And Grazing Gradients In The Great Basin, Usa, Maike F. Holthuijzen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

As environmental stress increases, positive plant interactions dominate, resulting in clumped, plant-plant spatial patterns. Positive plant-plant interactions have received more attention in recent years due to their importance to the structure and function of arid ecosystems. Certain plants (nurses), provide benefits that help neighboring plants grow or survive.

I investigated spatial associations between Wyoming big sagebrush (Artemisia tridentata ssp. wyomingensis) and three native grasses (Poa secunda, Elymus elymoides, and Pseudoroegnaria spicata) across a rainfall gradient in the Great Basin, USA. We also explored the effect of grazing on grass-shrub spatial patterns. I hypothesized that positive …

Population And Community Dynamics Of Freshwater Decapods In Response To Ecological And Anthropogenic Factors In Subtropical Streams In The Caribbean, Omar Perez-Reyes

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Historically, cities were established in close proximity to the richest agricultural lands and freshwater resources. In tropical islands, urbanization occupies a large percentage of land use along streams and rivers and strongly affects the biota and habitat quality. I studied freshwater decapod population and community dynamics in tropical streams of Puerto Rico across human and elevational gradients. I found that: 1) streams with less urbanization had higher decapod species richness and population sizes than the highly urbanized streams; 2) changes in the food webs in the streams are the result of the influence of changes in land use and environmental …

Relationships Between Water Developments And Select Mammals On The U.S. Army Dugway Proving Ground, Utah, Bryan M. Kluever

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Water is essential to life. Three general forms of water exist: pre-formed water that is available in food, metabolic water that is created as a byproduct of life processes (e.g., metabolism of fat or breakdown of carbohydrates), and free water (i.e., water available for drinking). As humans settle arid environments, the addition of man-made free water sources (e.g., sewage ponds, catchment ponds) often occurs. In addition, a tool commonly used to increase the abundance or distribution of wildlife species in desert environments is the addition of water sources, usually specifically designed to benefit game species like bighorn sheep (Ovis …

Linking Form And Process In Braided Rivers Using Physical And Numerical Models, Alan Kasprak

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Braided rivers are characterized by their dynamic nature, and are often significantly reshaped during each flood capable of transporting sediment. Over time, they adjust in response to the frequency and magnitude of floods, along with the amount of sediment available for bar building. Factors such as climate change, dam construction, or land use alteration that change the amount of sediment or water available to braided rivers may subsequently affect channel form. One avenue toward understanding braided channel evolution is to develop simple relationships between channel form and sediment transport, and extrapolate those relationships over extended timescales. With funding from the …

The Relationship Of Trait Mindfulness And Positive Mental And Physical Health Among College Students, Sarah A. Potts

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Mindfulness interventions have become an increasingly popular psychological intervention for mental health providers, especially in Westernized countries. Mindfulness interventions are promising in terms of possibly reducing physical and mental health symptoms among a wide variety of clients (including college students) presenting diverse diagnoses. While a number of studies suggest that mindfulness interventions increase mindfulness ability, as demonstrated by an increase in awareness, attention to the present moment, or other components of mindfulness, this assertion has not been validated because many researchers utilizing a mindfulness intervention fail to include measures assessing change in trait mindfulness ability. The present study examined mindfulness …

Analysis Of Quality Of Two Different Varieties Of Peaches With Respect To Organic And Conventional Cultivation Techniques, Shruti D. Sawant

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The worldwide demand for organic produce has been on the rise in recent years. This is a result of consumer concerns about the environment and chemicals used in food production. In addition, consumers have demonstrated that they are willing to pay premium prices for organic produce based on the general assumption that organic produce is more nutritious, environmentally friendly, and better-tasting. There have been several studies that have reported significant differences with organic and conventionally grown produce. Organic fruits and vegetables have been shown to have higher dry matter, antioxidants. In addition, it has also been shown to be smaller …

Site-Based And Nonsite Archaeological Survey: A Comparison Of Two Survey Methods In The City Of Rocks, Idaho, Patrick Reed Mcdonald

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Archaeology in the western United States frequently employs pedestrian survey of the ground surface to locate and identify archaeological sites. Proponents of alternative survey techniques suggest that site-based survey may be inherently flawed and will not accurately detect, document, or account for artifacts located outside of site boundaries. Site-based survey identifies artifacts, and then searches the area more intensively in an attempt to identify a spatial break in artifact presence. Nonsite approaches utilize point plotting of all discovered artifacts in order to quantitatively identify relationships between artifacts. Quantitative analysis removes a level of researcher bias from the interpretation of past …

Potential Of Forage Kochia And Other Plant Materials In Reclamation Of Gardner Saltbush Ecosystems Invaded By Halogeton, Rob C. Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Gardner saltbush ecosystems are increasingly being invaded by halogeton, a competitive annual weed that increases soil surface salinity and reduces plant biodiversity. This study was established on the Flaming Gorge National Recreation Area, in the Ashley National Forest near Manila, UT to evaluate the ability of forage kochia, Russian wildrye, tall wheatgrass, Indian ricegrass and Gardner saltbush, in monocultures and binary mixtures with Gardner saltbush, to establish and compete in ecosystems dominated by halogeton. A dormant seeding, with and without prior disking, was conducted to determine the ability of plant materials to establish. A spaced-plant evaluation was used to determine …

Greater Sage-Grouse Seasonal Habitat Models, Response To Juniper Reduction And Effects Of Capture Behavior On Vital Rates, In Northwest Utah, Avery Cook

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The greater sage-grouse (Centrocercus urophasianus; sage-grouse) is a species of conservation concern in Utah and across their range throughout the western US and southern Canada. Sage-grouse decline is primarily a result of declines in sagebrush habitat on which sage-grouse depend for winter, summer, nesting, and brood habitat. Detailed site-specific knowledge of sage-grouse ecology and distribution in needed to effectively conserve the species. To expand knowledge of local populations within the West Box Elder Sage Grouse Management Area (SGMA) in NW Utah and gain insights into the effectiveness of vegetation treatments intended to benefit sage-grouse, I radio marked and …

Systems Optimization Models To Improve Water Management And Environmental Decision Making, Omar Alminagorta Cabezas

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The degradation of water quality and wetlands is one of the most challenging environmental problems around the world. In spite of the magnitude of these environmental problems, few efforts identify how scarce resources (e.g., water, budget) can be more efficiently used to solve these problems. This dissertation presents a set of tools to help solve environmental problems related to excess phosphorus levels in water bodies and wetland degradation caused by water shortages and invasive vegetation. These tools are presented in three studies. The first study presents a simple optimization model that identifies the cost-effective combination of management practices to reduce …

Methods Of Processing Kenaf Chopped Strand Mats For Manufacturing Test Specimens And Composite Structures, Joshua W. Heil

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Every year in the United States, 10 to 11 million vehicles reach the end of their life cycle. Nearly all of these go to a recycling facility. After the recycling process is complete an average of 25% of each vehicle, by weight, goes to waste. This demonstrates the need to use natural fibers in parts that could be recycled, like parts that can be made from kenaf. There are many reasons to consider using natural/bio-fiber composites (bio-composites). These reasons include human health and environmental factors as well as advantages that natural fibers have over fiberglass, such as: lower costs and …

Computational Modeling To Study Disease Development: Applications To Breast Cancer And An In Vitro Model Of Macular Degeneration, Qanita Bani Baker

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

There have been several techniques developed in recent years to develop computer models of a variety of disease behaviors. Agent-based modeling is a discrete-based modeling approach used agents to represent individual cells that mechanically interact and secrete, consume or react to soluble products. It has become a powerful modeling approach, widely used by computational researchers. In this research, we utilized agent-based modeling to study and explore disease development, particularly in two applications, breast cancer and bioengineering experiments. We further proposed an error-minimization search approach and used it to estimate cellular parameters from multicellular in vitro data.

In this dissertation, in …

Linking Marital And Parenting Quality In Parents Of Early Adolescents, Megan L. Sheldon

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Parents have a great influence on the lives of their children, even as children develop into adolescents seeking independent identity. Families may find the transition of their children into adolescence difficult as they renegotiate their parenting strategies to allow for their children’s growing desire for independence. Because marital quality has been found to be related to parenting outcomes, the link between the parental and marital roles of a married couple becomes important to understand during the transition of their children into adolescents.

The present study uses the Inventory of Father (Parent) Involvement, Social Connectedness Scale, Quality Marriage Index, Couple Commitment …

Analytical Comparison Of Bovine Parentage Single Nucleotide Polymorphisms, Joshua Jeffrey Dallin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Often on cattle operations and dairy farms, where multiple bulls are exposed to cows either by live cover or artificial insemination, error can be present in parentage record keeping for breed registries or production use. Research has evolved to the integration of using single nucleotide polymorphisms (SNPs) to answer questions where cases of unknown parentage may exist. With the evolution of the research, differentiated panels have been created specifically for parentage analysis. Our objective was to complete an analytical comparison between two specific panels, a proven 88 parentage SNP panel and a recently developed 25 SNP panel. A smaller panel …

Effects Of Plant Stress On Facultative Apomixis In Boechera (Brassicaceae), Mayelyn Mateo De Arias

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In flowering plants, apomixis is asexual reproduction by seeds. Apomixis allows the production of offspring with the same genetic characteristics as the mother plant. Fertilization is not required. Apomixis could become a tool for naturally cloning high-yielding crop hybrids through their own seed. However, apomixis does not occur in major crop plants, except for citrus. In the present study, genes that might cause apomixis in naturally occurring apomictic plants were investigated. Sexual and apomictic species of the genus Boechera were exposed to stressed and non-stressed conditions. Effects of these treatments on the expression of apomixis was then measured. Stress triggered …