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Quantum Mechanical Studies Of N-H···N Hydrogen Bonding In Acetamide Derivatives And Amino Acids, Sandra J. Lundell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Proteins are made of vast chains of amino acids that twist and fold into intricate designs. These structures are held in place by networks of noncovalent interactions. One of these, the hydrogen bond, forms bridges between adjacent pieces of the protein chain and is one of the most important contributors to the shape and stability of proteins. Hydrogen bonds come in all shapes and sizes and a full understanding of these not only aids in our understanding of proteins in general but can bridge the gap to finding cures to many protein-related diseases, such as sickle-cell anemia. The primary aim …

The Effects Of Didactic Training & Behavioral Skills Training On Staff Implementation Of A Stimulus Preference Assessment With Adults With Disabilities, Sandra G. Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study assessed the effects of BST and DT on the treatment integrity scores of four direct care staff (DCS) conducting a multiple stimulus without replacement assessment with confederates. A concurrent multiple baseline design showed that BST was effective in achieving mastery level treatment integrity scores for all participants and that these scores generalized to adults with disabilities and remained at mastery levels after a 2-week generalization phase.

To Be, Or Not To Be (Like My Sibling), That Is The Question: Examining Modeling And Differentiation Behaviors Among Siblings In Organized Youth Sport, Keith Vakafutu Osai

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Sibling relationships are typically the most enduring relationship in the family unit. A large body of research documents how sibling relationships occur in the context of the immediate family, how they impact behaviors such as risk-taking, how different cultures view siblings, and how similarities and differences among siblings can be attributed to genetics as well as shared and non-shared experiences. However, one relatively common family context in which sibling dynamics are less understood is organized youth sport. The present dissertation was designed to address multiplegaps in the present literature. This dissertation is comprised of two complementary studies. Study 1, guided …

The Relationship Of Gender-Based Microaggressions And Internalized Sexism On Mental Health Outcomes: A Mother-Daughter Study, Nicole D. Feigt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Subtle occurrences of discrimination, insults, and slights against gender can impact woman of all ages, although little research has been done on the mental health impacts of these events on adolescents or middle-aged women. Additionally, a person’s own views on sex roles and sexism may impact how these events affect them. The following study examined the relationship between mothers and daughters on variables related to ambivalent sexism, gender-based microaggressions, and anxiety and depression. One hundred two mothers and their adolescent daughters completed various online surveys through the use of a Qualtrics panel. The sample was fairly representative, with respondents varying …

A Case Study On How Meeting The Academic Needs Of Students Substantially Below Grade Level In Mathematics Affects Their Self-Efficacy Beliefs And Engagement, Lauren K. M. Burton

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This researcher examined an alternative classroom structure for ninth-grade students substantially below grade level (SBGL) in mathematics. This researcher considered whether targeting the academic and social needs of students SBGL in mathematics in a ninth-grade class would increase their self-efficacy and engagement with the mathematics by studying four teaching effects: teacher, teacher-curriculum, peer-curriculum, and peer.

The researcher used interviews, observations, and surveys to collect qualitative and quantitative data. The case study (n = 19) employed a QUAL + quan convergent parallel mixed methods case study. Meta-inferences from the analyses of qualitative and quantitative data indicate that the structure of …

Using Photographic Activity Schedules To Facilitate Independent Completion Of Academic Tasks For Young Children With Autism, Nicole Taylor

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Some children with autism spectrum disorder (ASD) struggle to perform a series of academic tasks, like academic worksheets, independently. Photographic activity schedules are one technique that has been demonstrated to promote independent behavior in individuals with ASD. This study examined how activity schedules impacted the accurate and independent completion of a series of academic worksheets for three young children with ASD ages 6 and 7. Participants needed to performed a series of math and reading worksheets in the presence of an adult, but struggle to display those concepts accurately in the absence of an adult. Procedures involved training participants to …

New Ca-Id-Tims Detrital Zircon Constraints On Middle Neoproterozoic Sedimentary Successions, Southwestern United States, Abigail R. Bullard

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Three related sedimentary successions located in Arizona, Utah, and California were deposited in basins on proto-North America during the early rifting of Rodinia (~780 Mya). Previous detrital zircon U-Pb maximum ages for the units are inexact, making it difficult to piece together what happened at this point in Earth history.

We report better maximum age constraints on these units obtained by subjecting detrital zircons to high-precision CA-ID-TIMS analysis, which provide more exact ²⁰⁶Pb/²³⁸U ages. These new data significantly improve the precision for the base of the ChUMP units, with an average age of 775.63 ± 0.27 Ma …

Sociodemographic And Climatic Factors Shaping The Development Of Drought Policies In Major U.S. Cities, Riana S. Gayle

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In most parts of the world, drought is an inevitable and natural occurrence. However, as the climate continues to warm, and populations grow and expand, the negative impacts of this extreme weather event are predicted to become more pronounced. This leads many communities and stakeholders to question what is being done to prepare society for widespread drought? The following research determines different social and atmospheric characteristics that affect a city’s likelihood of having a drought policy in place.To do this, a thorough search was conducted at the city level to determine where drought policies are currently located in theU.S. The …

Improving Accuracy Of The Edgebox Approach, Kamna Yadav

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Object region detection plays a vital role in many domains ranging from self-driving cars to lane detection, which heavily involves the task of object detection. Improving the performance of object region detection approaches is of great importance and therefore is an active ongoing research in Computer Vision. Traditional sliding window paradigm has been widely used to identify hundreds of thousands of windows (covering different scales, angles, and aspect ratios for objects) before the classification step. However, it is not only computationally expensive but also produces relatively low accuracy in terms of the classifier output by providing many negative samples. Object …

An Investigation Of Educators' Perceptions Of The Influence Of A Teacher Evaluation System On Student Learning, Bryon Nielsen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In this study, the researcher explored the views and opinions held by teachers and administrators toward a teacher evaluation system. The purpose was to learn how educators’ opinions and views might impact how school leaders administer the evaluation system and how teachers receive it. Knowledge gained from this study may provide understanding for district and school-level leaders as they develop training and implementation strategies. Teachers and administrators were interviewed, and district-provided documents were reviewed, to gather data that was analyzed using qualitative research methods. Based on the data analysis, recommendations are made regarding implementation strategies that may improve the evaluation …

Interest Groups And Supreme Court Commerce Clause Regulation, 1920-1937, Barrett L. Anderson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Did interest groups influence the Supreme Court’s interpretation of federal economic regulatory authority under the Commerce Clause leading up to the Supreme Court’s 1937 reversal? Recent scholarship has begun a renewed study of this tumultuous era seeking alternative explanations for the Court’s behavior beyond the conventional explanations concerning Roosevelt’s court packing plan. I build on this literature by extending the discussion to the influence that interest groups may have had on the Court. I propose that interest groups served as a supporting and influential audience for the Supreme Court as the justices’ institutional legitimacy became threatened by both the political …

Institutional Adaptation To Water Scarcity In Utah Irrigation Companies, Grant Patty

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A review of how water institutions in the American West have changed in response to arid conditions as a means of examining the possibility of further change as an adaptation to climate change induced water scarcity. Two institutions are examined, prior appropriation and shares.

While much of the American West operates under prior appropriation formally, irrigators have found Coasian methods of lowering transaction costs by forming irrigation companies. Irrigation companies own appropriative rights and redefine them, typically as shares. Lower transaction costs allow irrigators to trade more freely within companies, though trades between companies still face high transaction costs.

Using …

Evaluation Of Antioxidant Properties Of Native Utah Berries And Their Potential For Use In Meats, Xiaoxi Wang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In industry, antioxidants are added to prevent changes that affect quality due to oxidation, such as the development of off flavors, unacceptable odors and discoloration. New resources that are familiar to consumers and may work as antioxidants should be studied.

The changes in antioxidant activity were determined for four freeze-dried native wild berry powder species in Utah, including skunkbush (Rhus trilobata), chokecherry (Prunus virginiana), river hawthorn (Crataegus douglasii) and silver buffaloberry (Shepherdia argentea), during cold storage (-20 °C) for 6 months. The total antioxidant activity was stable in most of the berry …

Comparison Of Methods For Extracting Lactobacillus Wasatchensis Dna From Broth Media, Milk, And Cheese For Subsequent Pcr-Based Analyses, Tyler Allen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Western Dairy Center at Utah State University funded this project as part of its BUILD Dairy program with support from the dairy farmers of Idaho, to investigate the problem of splits that form in cheese during storage. The bacteria, Lactobacillus wasatchensis had previously been identified as a cause of unwanted gas production in cheese and the defects then make the cheese unsuitable for cutting into slices.

The project team proposed a two-year, $150,912 project to investigate methods for determining the presence of this bacterium in cheese by extracting DNA from the cheese and looking for DNA that was specific …

Patterns Of Use Before And After A Labeling Intervention Among Collegiate Division I Athletes At A Fueling Station, Julie A. Buzzard

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Fueling Station at Utah State University was created to provide pre-workout fueling and post-workout recovery foods to the Utah State University athletes. The athletes use an online survey to mark what foods they selected after each visit to the Fueling Station.

There is a large amount of research on the lack of sports nutrition knowledge in collegiate athletes, but there is little information on the dietary intake of athletes, the education of athletes, and the education of macronutrient timing in athletes.

A food labeling system named “Gain Your Edge” food labels that targeted the education of timing was created …

Using Ecological Momentary Assessment To Clarify The Function Of Hoarding, Jennifer Krafft

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Experts have argued that hoarding disorder occurs in part because hoarding behaviors help individuals avoid distress and feel positive emotions in the moment. For example, when people who hoard choose to save something rather than discard it, they may avoid feelings of anxiety, and when people who hoard acquire something new, they may feel excited. However, no previous studies have examined whether or not these changes actually occur in the moment. These processes could also potentially be altered by how individuals respond to their emotions in the moment. For example, individuals who hoard may have stronger emotional reactions, distinguish less …

Effect Of Acceptance Versus Psychoeducation On Hoarding, Clarissa W. Ong

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Hoarding disorder (HD) is a mental health condition characterized by difficulty letting go of possessions, resulting in clutter that prevents use of active living spaces. Consequences associated with hoarding include strained family relationships, distress for children in the home, and increased burden on social services. Currently, the most empirically supported treatment for HD is cognitive-behavioral therapy (CBT), which includes such components as education about the nature of hoarding, challenging unhelpful thoughts, and exposure to distressing stimuli. Despite its demonstrated effectiveness, CBT does not result in clinically significant improvement for at least 50% of individuals, indicating the need for alternative interventions …

Plant Evolutionary Response To Climate Change: Detecting Adaptation Across Experimental And Natural Precipitation Gradients, Jacqueline J. Peña

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Global climate change is a real-time problem that presents threats to many species. Climate change can alter ecosystems and may lead to species extinction. Species can respond to climate change by moving to a better environment or adapting. Therefore, it is necessary to rely on several approaches and perspectives to anticipate ecological impacts of climate change. A common strategy uses models to understand how populations respond to different climate scenarios. Ecological models have helped us understand population persistence, but they often ignore how populations adapt to environmental stress. Adaptive evolution has been ignored because it was assumed that evolution was …

Route-Finding: Developing Curricular Knowledge And Impacting Practice Through A Collaborative Curriculum Mapping Process, Laura J. Reina

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Research indicates curriculum mapping is beneficial for teachers and students. However, it is not effectively implemented because there are barriers in time, support, and knowledge. This research sought to remove those barriers and study the impact on teachers’ practice when they were able to work together to develop a curriculum map. The focus of the teachers’ map was the Kindergarten through third grade English Language Arts curriculum.

This work included a series of professional development sessions where teachers worked collaboratively to gain a greater understanding of the curriculum and develop a sequence from kindergarten through third grade. Teachers’ worked collaboratively …

Supporting Adolescent Metacognition In Engineering Design Through Scripted Prompts From Peer Tutors: A Comparative Case Study, Kristin Marie Strong

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In 2013, developers of the Next Generation Science Standards implemented national K-12 directives and elevated engineering design to the level of scientific inquiry. Teaching design, however, is challenging to educators due to the complex nature of design problems, which cannot be solved via simple algorithms. Solving design problems requires a more reflective and iterative approach that emphasizes metacognitive skills like planning, monitoring, and taking another person’s perspective. Educators are further challenged by children’s immature metacognitive skills, which may be insufficient to engage in the entire design process.

A qualitative study of paired seventh graders demonstrated a pragmatic learning activity for …

Identification Of Sperm Chromatin Proteins As Candidate Markers Of Stallion Fertility, Chelsea C. Ketchum

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During spermatogenesis, histones are largely replaced by transition proteins and protamines in normal stallions. Incomplete nucleoprotein exchange results in the abnormal retention of histones and transition proteins, which is an indicator of poor sperm quality. Equine nucleoprotein exchange has not previously been investigated in detail, so that equine sperm chromatin quality problems, which are often responsible for poor breeding performance of stallions, are not well understood. In order to characterize chromatin remodeling events in stallion spermatogenesis and to identify proteins indicative of sperm chromatin defects, such as excessive amounts of histones, we identified antibodies that recognize equine testis-specific proteins of …

The Influence Of Mechanical Stratigraphy On Thrust-Ramp Nucleation And Propagation Of Thrust Faults, Sarah S. Wigginton

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Our current understanding of thrust fault kinematics predicts that thrust faults nucleate on low angle, weak surfaces before they propagate upward and forms a higher angle ramp. While this classic kinematic and geometric model serves well in some settings, it does not fully consider the observations of footwall deformation beneath some thrust faults. We examine an alternative end-member model of thrust fault formation called “ramp-first” fault formation. This model hypothesizes that in mechanically layered rocks, thrust ramps nucleate in the structurally strong units, and that faults can propagate both upward and downward into weaker units forming folds at both fault …

Historical Channel Change Caused By A Century Of Flow Alteration On Sixth Water Creek And Diamond Fork River, Ut, Jabari C. Jones

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Changes in the amount of water and sediment that enter a river can change its shape and size. The way that rivers change is affected by a variety of factors, including the size of the sediment in the river, and past changes to the river. The Diamond Fork River in central Utah has been altered by water delivered from the Colorado River system for over a century. Beginning in 1915, water used for irrigation was delivered through a tributary, Sixth Water Creek, with daily summer flows that were much larger than natural flows. This caused drastic change to the rivers, …

Organic Matter Sources, Composition, And Quality In Rivers And Experimental Streams, Julia E. Kelso

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Organic matter (OM) is often considered the “currency” for ecosystem processes, such as respiration and primary production. OM in aquatic ecosystems is derived from multiple sources, and is a complex mixture of thousands of different chemical constituents. Therefore, it is difficult to identify all the sources of OM that enter and exit aquatic ecosystems. As humans develop undisturbed land, the rate at which terrestrial OM (e.g. soil and plants) and associated nutrients (e.g. nitrogen) enters rivers has increased. Increased nutrients may lead to increased primary production from aquatic plants and algae, potentially causing eutrophication and harmful algal blooms. …

Study Of The 3Ω Measurement Of The In-Plane And The Cross-Plane Thermal Properties On Anisotropic Thin Film Materials, Daxi Zhang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Due to the size of the nano-scale and micro-scale materials, traditional method for measuring the thermal properties of the bulk materials cannot be applied. The 3 Omega Method was developed by D. G. Cahill in the early 90s. It was used extensively to measure the thermal properties of thin film dielectric materials. Compare with other simulations or experimental methods, the 3 Omega Method has many advantages. Previous research has indicate that the 3 Omega method is capable of measuring the cross-plane thermal conductivity of thin film materials. In extension, an alternative improvement for measurement of the in-plane thermal conductivity and …

An Exploratory Case Study Of How High-Performance Team Training Develops Sociomathematical Norms And Differing Levels Of Math-Talk, Melanie V. Durfee

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This exploratory study investigated the influence of High Performance Team (HPT) training on sociomathematical norms and differing levels of the Math-Talk Learning Community framework (Math-Talk) when sixth-grade student teams solved challenging mathematics problems while working in teams. HPT training involved (1) training students on distinct roles in the team problem-solving process, (2) challenging students with complicated mathematical problems, and (3) holding students accountable for contributions to the team. This research project explored the initial stages of the relationship between HPT and student-to-student mathematics conversations though the lens of the Math-Talk Learning Community framework.

The researcher studied four teams (i.e., four …

Assessing The Ecological Implications Of The Altered Flow And Sediment Regimes Of The Rio Grande Along The West Texas-Mexico Border, Demitra E. Blythe

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Large, exotic (those whose headwaters are in distant places) rivers are some of the most unique and diverse ecosystems on earth. Because they often flow through a multitude of biomes and climates, their waters are a vital resource not only for the organisms that inhabit these rivers, but for human societies as well. Thus, large rivers, like the Rio Grande, that flow through arid and agricultural regions are highly regulated and diverted. Regulation and dewatering upset a river’s natural flow regime (e.g., magnitude, duration, timing of large flood events), subsequently impacting the river’s ability to transport its sediment supply, and …

Interactions Between Biochar And Compost In Organic Winter Wheat Production And Soil Quality Under Dryland Conditions, Phearen Kit Miller

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Organic wheat grown under dryland conditions encounters challenges such as limited nutrients and water. Maintaining organic wheat production requires solutions to these problems in order to retain economic sustainability for the farmers.

Research on biochar and compost have been conducted globally. Despite well known benefits of compost on soil and crop production, few organic farmers apply compost to their fields. Research on biochar is still new. Biochar is charcoal created from pyrolyzing agricultural material under conditions of low oxygen and high heat. Many studies claim that biochar is a valuable soil amendment for improving organic production and reducing environmental pollution …

An Evaluation Of Bull Trout Movement Dynamics In The Walla Walla River, Courtney Newlon

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Bull trout are a fish species listed as threatened under the Endangered Species Act. Historically, they ranged from Northern California at the southernmost extent, into Canada at the northern most extent, and east into Nevada and Montana. Bull trout are highly migratory and require large, unfragmented habitats to persist and are thus highly susceptible to human induced land-use practices. The goal of my thesis was to obtain a better understanding of bull trout movement patterns in the Walla Walla River, Washington using complimentary techniques; Passive Integrated Transponder (PIT) technology and otolith microchemistry. PIT tags can be injected into a fish …

Geospatial Modeling Of Land Cover Change In The Chocó-Darien Global Ecoregion Of South America: Assessing Proximate Causes And Underlying Drivers Of Deforestation And Reforestation, José Camilo Fagua

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Chocó-Darien Global Ecoregion (CGE) in South America is one of 25 global biodiversity hotspots prioritized for conservation. I performed the first land-use and land-cover (LULC) change analysis for the entire CGE in this dissertation. There were three main objectives: 1) Select the best available imagery to build annual land-use and land-cover maps from 2001 to 2015 across the CGE. 2) Model LULC across the CGE to assess forest change trends from 2002 to 2015 and identify the effect of proximate causes of deforestation and reforestation. 3) Estimate the effects of underlying drivers on deforestation and reforestation across the CGE …