Digital Commons Network^™

Pavlovian Conditioned-Reinforcer Training As A Means Of Reducing Impulsive Choice, Emma Visser

All Graduate Theses and Dissertations, Fall 2023 to Present

Impulsive choice is associated with a host of human maladaptive behaviors warranting investigations aimed at reducing impulsive choice. Pavlovian conditioning was explored in 22 male Wistar rats. The experimental group was exposed to a stimulus that signaled a large delay-reduction to an food, whereas the control group experienced a stimulus that was controlled by a random schedule that did not predict food. Subsequently, a test of conditioned reinforcement was conducted, indicating a difference in conditioning between groups. Finally, a test of impulsive choice failed to find effects of training on impulsive choice.

Maternal Adverse Childhood Experiences And Non-Live Births, Mudasir Mustafa

All Graduate Theses and Dissertations, Fall 2023 to Present

Around 62 percent of adults in the United States have endured at least one type of Adverse Childhood Experience (ACE), and 25 percent of women reported experiencing three or more ACEs in their lifetime. This study explored whether maternal exposure to ACEs was associated with pregnancy loss or abortion, utilizing the National Longitudinal Study of Adolescent to Adult Health (known as Add Health) to explore this association. I found that cumulative ACEs, assessed through either the conventional ACE scale (reflecting 10 types of ACEs) or the extended ACE scale (reflecting 14 types of ACEs), are associated with a higher likelihood …

Peer Relationships, Social Identity, And Motivational Experiences In Youth Sport, Justin T. Worley

All Graduate Theses and Dissertations, Fall 2023 to Present

Organized sport is a setting in which youth can make friends and explore their identity. Teammate relationships may make important contributions to athletes’ social identity (i.e., their psychological connection to their sport team) and their motivation for sport. This idea was tested across three studies. A review of literature was conducted in study one to identify factors that may contribute to athlete social identity. Seven categories were identified across 60 studies including leadership factors, environmental factors, personal factors, team factors, interventions, moral factors, and interpersonal factors. Less than a third of these studies were conducted with youth athletes and interpersonal …

Script Fading And Training: Evaluating The Necessity Of Visual Cues To Teach Contextually Appropriate Play Commenting, Devanio J. Cousins

All Graduate Theses and Dissertations, Fall 2023 to Present

Autism Spectrum Disorder (ASD) is marked by many areas of need, including play and communication. These areas of concern can have a negative impact on a child's development. Applied behavior analysis, specifically script training and fading procedures, has shown promise in teaching communication during play to young autistic children. However, traditional script training and fading methods have some limitations, including the skills the children already possess to learn the scripts and the resources needed to teach the scripts. Recent studies have shown that script frames can be taught without using traditional training formats (i.e., text, auditory) but by using generic …

Course Of Disease Progression And Time To Death Among Different Dementia Types In A Population Based Study, Kaitlyn E. Kauzor

All Graduate Theses and Dissertations, Fall 2023 to Present

Alzheimer’s disease (AD) is the most common type of dementia, Other types of dementia include vascular (VaD) and mixed forms, like AD with VaD, other mixed forms of dementia or dementia of unknown etiology (DUE). Research has focused on factors that may increase risk of developing dementia, with less understood about disease course. Factors associated with risk for developing dementia onset include age, female sex, family history of dementia, genetics (e.g. having the ε4 allele of the Apolipoprotein E or APOE gene), and various health conditions. This project used previously collected data from the Cache County Study on Memory and …

A Mass Balance Model Of The Great Salt Lake, Ut With Adaptive Management Applications, Diana Dunn

All Graduate Theses and Dissertations, Fall 2023 to Present

The Great Salt, Utah, USA is a saline lake that provides critical habitat for ecologic communities and generates $1.3 billion annually. It has gone through detrimental change since the 20^th century. Streamflow reaching the lake has been decreased by upstream withdrawal for industrial and municipal use, causing the lake level to drop and salinity to increase to unhealthy levels. Further, in 1959, it was segregated into north and south sections by a railroad causeway. Due to the causeway and limited exchange of water through two bridges, the lake sections have significantly different water surface elevation and salinity levels. The …

Metabolic Capabilities Of Latilactobacillus Curvatus And The Potential Use As An Adjunct Culture For Food Safety And Quality Control In Yogurt, R. Chase Wahlstrom

All Graduate Theses and Dissertations, Fall 2023 to Present

In the quest for healthier and more natural food products, using beneficial lactic acid bacteria to preserve food, known as biopreservation, is becoming increasingly important. This research focused on a strain of beneficial bacteria called Latilactobacillus curvatus and its ability to inhibit fungal growth both in lab settings and in a yogurt system. This has the potential to enhance the safety and quality of dairy products.

We studied a specific strain of this bacteria, named WSU-1, found in dairy. Through detailed analysis, we discovered that this strain could produce substances that may help protect food from harmful microbes. In laboratory …

Moose Movement In An Urbanizing Landscape, Lucian R. Mcdonald

All Graduate Theses and Dissertations, Fall 2023 to Present

Humans disturb the environment in specific places and at specific times. As wildlife learn to navigate these disturbances, they react as they would to the risk of predation. Wildlife biologists can identify where and when these disturbances will lead wildlife to congregate by comparing geospatial data, such as metrics that represent vegetation, topography, or other environmental conditions, to known locations of the animal(s) in question. In Chapter I, I discuss the impact of human disturbances, like urbanization and roads, on wildlife behavior. In Chapter II, I compare the risk of moose-vehicle collisions (MVCs) to moose selection of urbanized landscapes to …

Channel Dynamics In Response To Compounding Hydrogeomorphic Disturbances In A Steep Burned Watershed, Paxton Ridgway

All Graduate Theses and Dissertations, Fall 2023 to Present

Wildfires significantly increase sediment input to rivers through various pathways, including post-fire debris flows. Understanding how mountain rivers respond to these sediment inputs is crucial for predicting and managing downstream impacts on infrastructure, water security, and aquatic habitats. While the causes and characteristics of post-fire debris flows have been extensively studied, the morphological changes in downstream fluvial channels remain poorly understood. This study uses scripted spatial analysis toolsets, high-resolution pre- and post-fire DEMs, repeat cross-sectional surveys, time-lapse footage, and pebble counts to document channel responses to sediment supply in a burned steep mountain stream in the upper Colorado River Basin, …

Agriculture In The Urbanizing Chesapeake Bay Watershed: Views On Water Quality, Agricultural-Related Conflicts, And The Adoption Of Nutrient Management Plans, Edem Avemegah

All Graduate Theses and Dissertations, Fall 2023 to Present

This dissertation analyzes Chesapeake Bay Watershed (CBW) agriculture by exploring residents' views on water quality issues, agriculture-related conflict, and farmers' adoption of nutrient management plans. The following questions were asked: What is the level of concern among non-agricultural and agricultural residents about water quality issues in local streams and waterways and the CBW, and to whom do the two groups attribute water quality problems? What are nonfarming residents' and farmers' levels of support for various interventions outlined in previous research on water quality issues in local streams and waterways and the CBW? What is the level of nonfarming residents' and …

Barriers And Drivers To Bus Electrification: The Transit Agency's Perspective, Aleks C. Paskett

All Graduate Theses and Dissertations, Fall 2023 to Present

Battery-electric buses (BEBs) have become increasingly common in recent years, as transit agencies around the world seek to reduce their carbon emissions. Although many agencies and governments have set ambitious climate goals pushing for increased adoption of BEBs, some agencies face difficulty transitioning their fleets to this technology. This study seeks to understand the challenges faced by these agencies, as well as their motivations for adopting BEBs. Researchers conducted a series of interviewers with twelve transit leaders representing ten transit agencies who were leading BEB adoption programs, asking questions about their experiences trying to implement this technology. The interviewees stated …

Westward Words: An Exploration Of Western Beats And Their Legacy, Brenna Jones

All Graduate Theses and Dissertations, Fall 2023 to Present

This thesis examines the art, poetry, and experiences of western Beats or Beatniks. Also known as the Beat Generation, this literary movement is traditionally associated with East Coast writers. However, a prominent Beat culture was also present on the West Coast throughout the 1950s and 1970s. The thesis explores how the West influenced the literature and art produced by Beats during this time.

Development Of A Multidimensional Index Of Fall Risk For Older Adults: The Cache County Study, Alexandra G. Hammond

All Graduate Theses and Dissertations, Fall 2023 to Present

One out of four adults over the age of 65 are estimated to fall each year in the U.S. alone, with that number expected to rise to 52 million falls per year by the year 2030. Improving accuracy for identification of older adults at a higher risk of falling is increasingly important and may be integral in informing the distribution of limited resources and assist in preventing falls in older adults. This project examined the relationship between previously identified risk factors and fall risk to create multidimensional fall risk indexes for older adults, specific for each sex.

Factors best associated …

Exploring Resilience: Insights From The Western U.S. Drink Tourism Industry During The Covid-19 Pandemic, Camillo Salvi

All Graduate Theses and Dissertations, Fall 2023 to Present

COVID-19 harmed the resilience of the United States tourism industry, undermining its economic stability. Specifically, the drink tourism sector was negatively affected by the pandemic due to its heavy reliance on consumer demand. Enhancing the ability to withstand, recover, and adapt to changing conditions is fundamental to promoting financial development and economic growth. This study aims to explore the determinants of resilience within this industry, focusing on wineries, breweries, and distilleries in the western United States during 2020 and 2021. Through a survey-based analysis, we identified what factors impacted their resilience and how these influenced the drink tourism domain, thereby …

Systematic Review On The Use Of Self-Monitoring Interventions With Adhd/Asd Students In School Settings, Sari Christensen

All Graduate Theses and Dissertations, Fall 2023 to Present

This systematic literature review was done to determine characteristics and descriptive analysis of the use of self-monitoring behavior interventions (SMI) with students in the educational setting who are diagnosed with ASD/ADHD. The objective was to create resources for future practitioners and interventionists to direct future use of SMI in schools and identify areas of study needed. Behavior interventions are often used to support students with disabilities to access their education in a school setting. Individuals diagnosed with Attention Deficit Hyperactivity Disorder (ADHD) or Autism Spectrum Disorder (ASD) are included in this population. A type of behavior using the analysis of …

From Pasture To Plate: Striking An Omega Balance Between Grass-Fed And Grain-Fed Beef Ribeyes - Fatty Acid Composition, Minerals, Soil, And Forage Analysis, Travis Earl Statham

All Graduate Theses and Dissertations, Fall 2023 to Present

Most beef cattle in the US are feedlot-finished where intensive feeding of grains is used to increase weight and yield; however, a minority are raised in grass-fed operations that use exclusive pasture, rangeland, and hay for feeding, possibly leading to benefits for the land, soil, ecosystems, forages, and the meat itself. These operations use a variety of methods, and the goal of this was to recognize differences in the soil and forage metrics to help understand the resulting meat fatty acid composition and mineral content. We collected these samples from 78 sets of farmers while testing 25 sets of grain-fed …

Immune Variation Across Different Contexts In Non-Model Systems, Kwanho Claudia Ki

All Graduate Theses and Dissertations, Fall 2023 to Present

The immune system is important to an animal’s survival against disease-causing agents and physical injuries. Accordingly, many resources are required to maintain and activate the immune system (such as energy). However, as these resources also need to be shared with other important systems of the body, the portion of resources that can be allotted to the immune system is variable. Thus, many different factors may alter how well the immune system operates. My dissertation sought to understand what sorts of factors can lead to changes in the immune system. Reptiles are known to have a very robust immune system. Therefore, …

Physical Activity In Play Environments Inclusively Designed For Children With And Without Disabilities, Mckall E. Vigil

All Graduate Theses and Dissertations, Fall 2023 to Present

This study examines physical activity within inclusively designed play environments for children with and without disabilities. The purpose of this study is to determine to what extent children in the third grade with and without disabilities differ in physical activity across various behavior settings of an inclusively designed play environment. Of the 50 third-grade students, 34 participated in eight weeks of observations conducted during lunch recess. Accelerometers and GPS units were utilized to collect data during the observations. The majority of settings on this playground were identified as inclusive. Children with disabilities didn’t engage in organized games as often as …

Understanding And Influencing Public Concerns About Prescribed Fire Use In Utah, Brooke Richards

All Graduate Theses and Dissertations, Fall 2023 to Present

Prescribed fire is beneficial for improving forest health and reducing wildfire risk, which is especially important for residents who live near forested areas. To expand the use of prescribed fire, Utah land managers must first ensure there is public support. Therefore, better understanding public concerns and what shapes their beliefs about prescribed fire can help managers improve outreach and education methods. Through interviews with south-central Utah land managers, private landowners, and Health departments employees, a focus group discussion with Park City natural resource managers, and observation of Summit County public commentary, two outreach messages were suggested to address the five …

Are Universities Adequately Preparing Undergraduate Students For Careers As Professional Wildlife Biologists?, Trevon D. Strange

All Graduate Theses and Dissertations, Fall 2023 to Present

The demands for diversely skilled wildlife biologists and scientific researchers in the wildlife profession are projected to increase. Increasing urbanization has affected wildlife management, and the recruitment of future wildlife professionals. Thus, state and federal supervisors in agencies that hire wildlife professionals are concerned that recent graduates of university wildlife programs lack the necessary skill-sets to address these complex contemporary wildlife management issues. My research sought to identify where the educational performance gaps may exist between university wildlife programs, wildlife agencies, and student expectations. To conduct my research, I evaluated undergraduate wildlife curricula offered by 42 accredited universities listed on …

Assessing Canopy Features, Its Shading Factor, And Their Influence In The Estimation Of Evapotranspiration In Almond Orchards Using Uas Information And The Two-Source Energy Balance Model, Moises R. Duran-Gomez

All Graduate Theses and Dissertations, Fall 2023 to Present

This study explored how canopy biomass and shadows affect evapotranspiration (ET) estimates, a crucial factor for irrigation management in almond orchards in California’s Central Valley. Data from 24 drone flights over three almond plots in 2021 and 2022 were analyzed using the Two-Source Energy Balance (TSEB) model, combined with meteorological data from EC-towers. The study found that filtering out shadows improved ET estimation, particularly in young orchards, and identified the importance of using new Leaf Area Index (LAI) models for better accuracy. This research is part of the T-REX initiative, which integrates drone and ground-based data to enhance water use …

Insights From Diverse Environments: Investigating The Fate And Transport Of Semivolatile Organic Contaminants In Alpine, Arctic, And Arid Regions, Jeffrey Perala-Dewey

All Graduate Theses and Dissertations, Fall 2023 to Present

This dissertation investigates the fate and transport of pollutants through four field-based studies in a diverse array of environments. These pollutants travel through the atmosphere and end up in places far from their original sources. In this work I explore how chemical properties of the pollutants and the environmental processes that are present change the way the pollutants travel through the environment. In the first study, pollutants from car engines were quantified in the vegetation along transects in three alpine valleys. Using these measurements, I investigated how the chemical properties of the pollutants impacted their interplay with wind systems in …

Adolescent Mental Health And Social Media: The Roles Of Psychosocial Development And Online Interaction, Mark L. Ferguson

All Graduate Theses and Dissertations, Fall 2023 to Present

Social media has become an integral part of adolescent life, and its effects on adolescents’ mental health has been studied for over twenty years. However, the research approaches used to discover connections between adolescent social media use and their mental health have been diverse, and findings have varied over time. This study sought to explore the potential relationships between adolescent social media use and mental health by including several different variables that aren’t typically accounted for in the same study, such as attachment to parents and peers, internal psychological development, emotional intensity towards social media use, and how adolescents feel …

An Analysis Of Psychological Concepts In Interactive Media, Kieryn Funk

Undergraduate Honors Capstone Projects

An analysis of how video games display psychological concepts and facilitate psychological experiences. Video games are an extremely competent medium for experiences and learning psychology due to the manner in which they elicit emotions and teach procedurally. Psychological concepts are explained in a brief way, then specific examples are brought up from video games connecting the concept to an element in the game, specifically in gameplay mechanics, narrative story, or aesthetics and elements in the game world. Behavioral science is examined both on a conceptual level and on a technical level showing how video games, in general, display the theories …

Viking And Native North American Interactions: The Spread Of Disease In The Norse Discovery Of North America, Sarah N. Haughawout

Undergraduate Honors Capstone Projects

This paper evaluates the potential for spread of disease in the Norse and Native North American interactions around 1000 CE. At this time, the Vikings were expanding their territory in search of land and natural resources following the Viking Raids in mainland Europe. They traveled to Iceland, then Greenland, and finally the eastern coast of northern Canada. Norse explorers faced numerous obstacles on their journeys, but they still prospered in North America for a time. The Vikings hunted the land and sea mammals, used the land, and found ways to thrive while having hostile relations and contact with the Native …

Asian American Reproductive Rhetorics: A Rhetorical Analysis Of "The Farm" By Joanne Ramos, Mckinlee Armstrong

Undergraduate Honors Capstone Projects

Rhetorical scholars have long analyzed the idea of choice in the context of reproductive rights and have concluded that individual choice does not override the systematic barriers women of color face in accessing reproductive healthcare. Most Asian American rhetorical artifacts that have reached this same conclusion are case studies. I propose that analyzing Asian American fiction, specifically The Farm by Joanne Ramos, is just as necessary because fiction demonstrates the barriers that might exist in the future and how to prevent them from happening. The framework I use to analyze this text is the Asian American rhetorical concept of restiveness, …

Dual Mechanisms Of Salinity Tolerance In Wheat Germplasm Lines W4909 And W4910, Richard R.-C. Wang, Steven S. Xu, Thomas A. Monaco, Matthew D. Robbins

Forage and Range Research Laboratory Publications

Soil salinity adversely affects plant growth and development, reducing the yield of most crops, including wheat. The highly salt-tolerant wheat germplasm lines W4909 and W4910 were derived from a cross between two moderately salt-tolerant lines, the Chinese Spring (CS)/Thinopyrum junceum disomic addition line AJDAj5 (AJ) and the Ph-inhibitor line (Ph-I) derived from CS/Aegilops speltoides. Molecular markers for gene introgressions in W4909 and W4910 were not reported. Four sequence-tagged site (STS) molecular markers of Ph-I were developed and tested in the above-mentioned lines and the F₂ progenies of the two crosses, Anza (AZ) x 4740 (sib of …

The Utah Statesman, November 25, 2024, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

Understanding The Teen Brain And Building Strong Relationships: A Foundation For Supporting Healthy Decisions, Josie Hatch, Ashley Yaugher, Christina Pay, Cris Meier

All Current Publications

This fact sheet overviews the importance of strong caregiver relationships with youth to support healthy decision-making.

Revisiting Charles Perrault’S Iconic “Bluebeard” Serial Killer In Modern French Variants, Christa Catherine Jones

World Languages and Cultures Faculty Publications

“Bluebeard” (ATU 321: Maiden-Killer), a fairy tale about a wealthy noble man and serial killer, is the most gruesome of Charles Perrault’s fairy tales. Bluebeard epitomizes evil and horror. In Perrault’s tale, Bluebeard’s evilness is linked to patriarchy and power, as symbolized by the villain’s iconic blue beard. Historically linked to Henry VIII (1491–1547), King of England, Bluebeard has also been associated with Breton commander Gilles de Rais who was hanged for sorcery and satanic abuse. This article examines how contemporary francophone “Bluebeard” variants refashion and redefine evil and whether they contain any new morals linked to evilness. Do …