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Advancing The Cyberinfrastructure For Smart Water Metering And Water Demand Modeling, Nour A. Attallah

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

With rapid growth of urban populations and limited water resources, achieving an appropriate balance between water supply capacity and residential water demand poses a significant challenge to water supplying agencies. With the recent emergence of smart metering technology, where water use can be monitored and recorded at high resolution (e.g., observations of water use every 5 seconds), most existing research has been aimed at providing water managers with detailed information about the water use behavior of their consumers and the performance of water using fixtures. However, replacing existing meters with smart meters is expensive, and effectively using data produced by …

Defining Areas Of Interest Using Voronoi And Modified Voronoi Tesselations To Analyze Eye-Tracking Data, Joanna D. Coltrin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Eye tracking is a technology used to track where someone is looking. Eye-tracking technology is often used to study what people focus on when looking at a photo of another person. The eye-tracking technology records points on a photo that a person is looking at. When the photo being looked at shows a person, the points can be categorized by body part such as head, right hand, left hand, and torso. This thesis presents the use of partially circular areas to define the body parts of the person in the photo and therefore categorize the points collected by the eye-tracker. …

Using Generic Picture Cues To Promote Verbal Initiations During Play, Stephanie L. Mattson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Children with autism spectrum disorder (ASD) often demonstrate difficulty communicating with others, and this may impact the extent to which they can engage in language during play. Previous researchers have used interventions to increase commenting during play with caregivers, siblings, and adult play partners. In these previous studies, researchers have taught participants to use text-based or audio recorded scripted phrases to facilitate communication. However, because these interventions include multiple components such as physical guidance and verbal reminders from another individual in addition to the textual or auditory scripted phrase, it is unclear the extent to which the specific words associated …

Skeletal Muscle Growth Of Beef Cattle: Cattle Breed Types And Anabolic Implants, Caleb C. Reichhardt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Two potential methods that can be used by the U.S. to help further improve environmental and economic sustainability of the beef industry are through the use anabolic implants, typically composed of the hormones estradiol and trenbolone acetate, and by crossbreeding Bos taurus and Bos indicus cattle. How anabolic implants operate to improve growth, and their resulting relationship with different cattle breed types have yet to be determined. However, crossbreeding these cattle breed types has been found to have a positive influence on economically important traits such as average daily gain and carcass characteristics. Therefore, we hypothesized that the different hormones …

Using Computational Fluid Dynamics To Predict Flow Through The West Crack Breach Of The Great Salt Lake Railroad Causeway, Michael Rasmussen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Great Salt Lake in Utah, USA, is a terminal, saline lake and is divided into two primary sections (northern and southern) by an east-to-west railroad causeway. Shortly after completion of the earth-fill causeway in the late 1950s, the two sections became dramatically different with differences in water surface elevation and water density. These differences cause the formation of a unique flow behavior commonly referred to as a density-driven exchange flow or bi-directional flow; a behavior observed in other lake and ocean settings where two fluids of differing densities interact. Measuring these exchange flows is a priority for lake managers …

Institutional Betrayal Related To Sexual Trauma In Military Service Members And Veterans: An Examination Of Posttraumatic Sequelae, Felicia Andresen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Military sexual harassment and/or assault (MSH/A) is pervasive and destructive. MSH/A survivors who believe the institution played a role in the traumatic experience by failing to respond in a supportive manner or for failing to keep them safe may feel betrayed by the military itself, a concept referred to as institutional betrayal. Previous research suggests it is more harmful to be abused by trusted others or institutions due to the violation of trust. This two-study dissertation explored experiences of MSH/A-related institutional betrayal to identify survivors at-risk for worse posttraumatic outcomes.

Study #1 evaluated whether PTSD explained the relationship between …

Vietnam Continued: The Battle For American Public Memory In Public School History Textbooks, Donnie Owens

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The question of “how do we actively remember the past?” can perhaps best describe the purpose of public memory studies. Acknowledging this question, I analyze popular public-school textbooks to assess the way in which educational literature constructs the public memory of the Vietnam War. In total, the narratives of the texts construct a public memory of Vietnam as a controversial conflict contained within a decade of American uncertainty. However, these narratives also take care to minimize or leave aside the details of Vietnam’s lasting impact and in favor of reaffirming American exceptionalism. Ultimately, this thesis finds that students who read …

Evaluation Of The Geothermal Potential Of The Camas Prairie, South-Central Idaho, Connor J. Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The area studied in this thesis was assessed based on the analysis of a water sample collected from the exploratory well USU Camas-1. The water sample was characterized and compared to other water samples collected and analyzed during a previous phase of this project according to its water chemistry.

Lithologic, geophysical, and temperature logs were also used to assess the study area. The depth sensitive data was analyzed to determine the characteristics of the formation as they relate to the favorable parameters of a geothermal resource, those being permeability of the subsurface, heat, and the presence of a clay seal. …

Teacher Home Visits: Changes In Perceptions Of Key Stakeholders, Kevin R. Thomas

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Teacher home visits have been shown to improve student attendance, academics and to reduce behavior issues. Three groups are involved: the student, the teacher, and the family (or parent). This research focused on determining if and how the teacher home visit changes the perspectives, expectations, and relationships of these three groups. A survey followed by interviews of some of the students, parents, and teachers was used. The surveys and the interviews were evaluated. Results indicated that perceptions and relationships between stakeholders were improved. Due to low participation rates, results must be interpreted with caution. With these considerations in mind, I …

Bugs Buy Steady Releases From Hydropower Producers To Encourage More Synergistic Reservoir Management, Moazzam Ali Rind

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Hydropower generated from dams has significant economic value, however, that value is achieved at the cost of native ecosystem devastation. Here, we have estimated loss in hydropower revenue due to inclusion of the steady low flow days –Bug Flow Experiments. We developed a linear optimization model and constraint method that restrict the number of steady low flow days while maximizes the hydropower revenue generation. The results suggested that increase in release volume will benefit both the objectives (win-win scenario), energy price differential between on-and off-peak periods controls the position and shape of tradeoff curves, and offset release does not have …

Evaluating Microbial Safety Of Food Products And Processes In Small Scale Food Services, Processors And Manufacturers, Sujan Acharya

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study evaluated microbial safety of relatively new and modified food products prepared especially by small-scale foodservice establishments and home producers. In the first part, microbial safety during fermentation at room temperature was evaluated. Chapter 3 monitored Listeria monocytogenes and Escherichia coli O157 survival during Sauerkraut’s natural fermentation. Chapter 4 evaluated the survival of acid-adapted E.coli O157 during kombucha fermentation and in kombucha-fruit blend during refrigeration. During both fermentations, the pathogens were inactivated before the recommended duration of fermentation. However, E.coli O157 introduced after fermentation survived in kombucha-fruit blends during refrigerated storage. The second part (Chapter 5) evaluated the safety …

Parent Work-Family Balance And Adolescent Psychosocial Well-Being During The Covid-19 Shutdown, Shailey Woodward

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Parents who work have many responsibilities to fulfill. They may encounter frustration and exhaustion, which can impact how well they parent. Experiences such as financial strain and the COVID-19 shutdown may further impact parenting. At the same time, adolescents are establishing identities and need attentive parents to help them develop healthy psychosocial well-being. Using Erikson’s (1968) psychosocial theory of development as a backdrop, the purpose of this study was to observe the relationships between parent work-family balance, parenting satisfaction, and adolescent psychosocial well-being within the context of financial stress and the COVID-19 shutdown. I found that parent and adolescent perceptions …

The Effect Of Congressional Committee Assignments On National Park Annual Operating Budget Appropriations, Braden T. Morrill

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Yearly funding for individual national parks is overseen and determined by the House Appropriations and Natural Resources Committees. This process has resulted in the National Park Service being underfunded and facing a $12 billion maintenance backlog. Congress has passed temporary funding to help reduce this backlog but has not indicated a shift in how funding decisions are made to prevent future shortfalls.

This thesis uses statistical analysis to explore how individual members of Congress are impacting funding for national Parks in their states or districts. Often congressional committee’s act on personal incentives to make funding decisions rather than basing their …

Biodiversity And Foraging Preferences Of Bee Communities At Pinnacles National Park Over Time, Abigail M. E. Lehner

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Bees are considered to be the most important animal pollinator, providing billions of dollars in pollination services each year. Despite their importance in both natural and agricultural settings, the status of most native bees is unknown. Native bees are subject to a variety of threats including habitat loss, pesticide use, and climate change. Yet, monitoring programs have been implemented in few natural areas. Pinnacles National Park, PNP, in California is one of the only natural areas to have a large historical dataset on bees across decades with surveys conducted in 1996, 1997, 1998, 1999, 2002, 2011, and 2012. These surveys …

A Social-Ecological Approach To Understanding The Structure, Function, And Challenges Faced By Fisheries, Chase C. Lamborn

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Fisheries throughout the world play many important roles, and they are also subject to many pressures. The tension between roles and pressures is increasing, and as a result, many fisheries are being utilized to, or over their capacity, which ultimately threatens their sustainability. To address these challenges, this dissertation provides insights and tools to help us better understand fisheries and the challenges they face. The first study explores the impacts of an earlier spring runoff in Montana. Earlier runoff has resulted in lower and warmer summer flows, which is stressing coldwater species like trout. This stress is affecting fishing quality, …

Emotional Support Animal Partnerships: A Multimethod Investigation, Jillian Ferrell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Emotional Support Animals (ESAs) are increasing in prevalence and awareness, though not all the publicity and attention have been positive. Many people, including housing officials, persons with disabilities, health professionals, and the general public are confused about the roles and rights of ESAs. Misunderstandings, lack of awareness, and fraud have led to dangerous and inappropriate situations for humans and animals alike despite overwhelming evidence of powerful therapeutic benefits of the human animal bond.

Three studies provide insight into various perspectives involved in ESA partnership experiences and development. Each study provides a theoretical, quantitative, and qualitative approach, respectively, to explore the …

Conservation Conflict: Rare Plant Conservation And Energy Development And Potential In The Colorado Plateau, Joshua Carrell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Colorado Plateau provides numerous sources of energy, particularly natural oil and gas. This energy potential is being actively extracted for consumption on both public and private lands. Elements of biodiversity (e.g., listed and sensitive plant and animal species) are distributed among all land tenures, yet the laws protecting them can vary depending if they occur on public, private, or tribal land. Therefore, it is necessary to understand the geographic ranges of threatened, endangered, and sensitive species and their relationship to land ownership to preserve habitat and conserve species populations. I developed species distribution models (SDMs) to examine the predicted …

Extensions To The Syrjala Test With Eye-Tracking Data Analysis Applications In R, Eric D. Mckinney

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Eye tracking is a process for measuring the movement of an individual’s eye(s) when that individual is looking at something. Many eye-tracking technologies exist to aid in calculating and recording data associated with what a person focuses their visual attention on. For example, eye-tracking technology can record points on an image that a person is looking at. Often the question arises as to whether two people, or groups of people, are looking at the same thing(s). This dissertation presents a new way (or test) to quantify those differences while taking into consideration the randomness associated with such data. Hence, the …

The Effect Of Species Choice, Seed Mix Composition, And Microtopography On Native Plant Restoration In Great Salt Lake Wetlands, Coryna Hebert

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Wetlands are important ecosystems that improve water quality, prevent floods, and provide wildlife habitat. As such, restoring native plants that promote wetland health is a high priority for land managers. However, there are many challenges to the restoration of native plants. In our study system (Great Salt Lake wetlands), many areas are invaded by the European grass, Phragmites australis. Phragmites grows in dense stands and displaces native plants. The reduction of native plant communities in Great Salt Lake wetlands is a major concern because these ecosystems provide habitat for millions of native birds. Managers have made successful efforts to …

Speed Of Small Droplets On Repellent Surfaces, Addison J. Litton

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A droplet of fluid can slide or roll down an angled surface if the droplet doesn’t stick to the plate (e.g., droplets on glass). The most common surface to allow for such this motion are hydrophobic surfaces. One example is a freshly waxed car where the rain beads up and rolls off. Another example is if a pan is heated to a high enough temperature then when small amounts of water are added the droplet will skitter around on the surface for a moment before boiling away. This high temperature effect where droplets rest on a vapor layer underneath cause …

Spatial-Temporal Responses Of Cow Elk To Targeted And Non-Targeted Hunting Risk, Randall Mcbride

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Predation is one of the most important interspecies interactions that affect a wildlife population. Predator-prey interactions may cause species to shift their behavior, such as changing the use of their habitat in both space and time, based on their ability to assess risk. Wildlife population responses to predation stresses have been studied in the past, but individuals' responses to these stresses have not been studied in fine detail. For this study, cow elk were collared with GPS collars, and hunters carried hand-held GPS units. GPS locations were taken at 10-minute intervals for both cow elk and hunters during the hunting …

Examining The Effectiveness Of Explicit, Systematic Mathematics Vocabulary Instruction For Students With Learning Difficulties And Disabilities In A Specialized Setting, Kristen R. Rolf

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Many students in the United States are not proficient in mathematics. Mathematics vocabulary is one area that may impact students’ understanding of and engagement with mathematics. This dissertation investigated the implementation, effectiveness, and teacher’s perceptions of a program for teaching mathematics vocabulary necessary for fourth grade and beyond.

This study randomly assigned 30 students (11-14 years old) to receive mathematics vocabulary instruction or not. Three teachers at a school for students with learning difficulties and disabilities administered mathematics vocabulary and mathematics achievement tests to all of their students before teaching the program to 17 of the students. A research assistant …

Modeling A Pandemic: Investigating Student Learning About Disease Spread In The Context Of Agent-Based Modeling, Siyu Wu

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The COVID-19 pandemic has highlighted a need for students to learn about public health issues, including the transmission of disease and methods for the prevention of epidemics. This study presents data from a project focused on developing computational microworlds to help middle school students learn about these topics. The microworld is designed to help students model and test their ideas about how a disease spreads through a population and how an epidemic can be prevented. I employed a lab-based case study approach to conduct one-on-one 1.5-hour interviews through Zoom with four middle-school students (ages 12-14). During the interview, the student …

Cuo Nanoparticles Solubility As Influenced By Soil Pore Water, Native Microorganisms, And Wheat Rhizosphere Chemistry In A Sand Matrix, Dakota Sparks

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nanoparticles (NPs) are particles less than 100 nm (~4 millionths of an inch) in a direction. NPs, due to their small size, are used in a variety of products, such as silver (Ag) NPs as an antimicrobial in clothes. Copper Oxide (CuO) NPs are used in electronics as semiconductors and other fields as antimicrobials and purposefully or accidentally end up in the environment. Copper (Cu) is a necessary nutrient for plants, but at higher amounts is toxic to plants and beneficial soil microbes.

In order to understand how the CuO NPs interacts with plants, wheat seedlings were grown in sand …

Using Cytoplasmic Biopsies To Determine Bovine Oocyte Quality, Madison Lindsey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Embryos resulting from assisted reproductive technologies, such as in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI), develop with lower efficiencies than embryos resulting from their in vivo counterparts. The reasons behind the developmental discrepancies remain largely unknown. Because the egg is the primary determinant of embryo developmental success, it is reasonable to consider inherent egg quality as a possible cause. The hypothesis for this project is that there are distinct mRNA transcript patterns, or molecular “fingerprints,” that distinguish high- versus low-quality eggs developing within the same environment. In this study, a small cytoplasmic biopsy was removed from 40 eggs …

Natural History And Development Of Melittobia Acasta On Megachile Rotunda , Alan R. Anderson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Alfalfa is one of the most economically important crops in North America. To produce alfalfa seed, a pollinator must release plant reproductive organs by applying pressure to keel petals. The alfalfa leafcutting bee, Megachile rotundata, is the primary commercial pollinator of alfalfa. U.S. bee managers struggle to maintain populations due to many mortality factors. One cause is attack from parasitoid wasps such as Melittobia acasta. Females can lay hundreds of eggs and have multiple generations, which can decimate bee stocks. Chapter Two investigates the life cycle and base temperature that allows development of M. acasta on bee hosts. …

Impacts Of The Changing Pacific On North American Drought, Atmospheric Rivers, And Explosive Cyclones, Jacob Stuivenvolt-Allen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The impacts of specific weather events can vary greatly from year to year. Much of these impacts depend heavily on the frequency of impactful weather which is constrained by the state of the climate system each year. This research focuses largely on the impacts that climate oscillations from year-to-year or even from decade-to-decade have on the frequency of impactful weather. There are numerous examples of impactful weather that impact North America, but this work focuses on drought in the western United States, atmospheric rivers in Northern California and rapidly developing winter storms along the east coast. While seemingly disparate events, …

The Rio Virgin: A Turbulent River, Mormon Pioneers, And The Creation Of A Landscape 1854-1921, Spencer Wayne Mcconkie

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis explores the changes to the landscape of the Virgin River Basin by Mormon pioneers and the environment between 1854 and 1921. This thesis shows the ways in which the Mormons replaced the local vegetation of the basin with new crops and expanded the area available for farming through the use of irrigation canals and different farming techniques. Along with showing the ways in which the Mormons changed the landscape the thesis explores the ways in which environmental changes played into this process. The process of creating the new landscape of the Virgin River Basin involved both natural and …

Maternal Effects And Management Of Alfalfa Leafcutting Bees, Makenna May Johnson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Most bees are solitary and important contributors to pollination of a variety of crops. Solitary bees do not live in colonies. Instead, females work individually to construct nests and provision nutrients for each offspring. However, solitary bees can be difficult to manage, especially on a large scale like honey bees, because of differences in how species provision for their offspring and construct nests. Variations in the timing of offspring development to adulthood even within species makes commercial management difficult. Variations in reproductive strategy, like how many offspring to make, how much provision to give each, and when to make them …

Evaluation Of Noninvasive Methods For Determining Pregnancy, Diet, Nutrition, And Stress Among Pronghorn Antelope: Implications For Population Monitoring, Cole Bleke

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was conducted to increase our understanding of the influence of adult female pronghorn (Antilocapra americana) physiology on fawn summer survival. Pronghorn are a valued big game animal in Idaho, but are particularly sensitive to capture; therefore, we designed a noninvasive fecal sampling study to measure pregnancy (progesterone and estrogen), diet, nutrition (fecal nitrogen and DAPA), and stress (cortisol), during metabolically-demanding female life history stages (late gestation, early lactation, and breeding season). We also compared survey results between ground and aerial methods within mountain valley landscapes.

Pregnancy determination, via progesterone, is possible for pronghorn, but sample collection …