Digital Commons Network^™

An Analysis Of Student Performance In Elementary Linear Algebra At Brigham Young University, Adrienne Irene Christensen

Theses and Dissertations

This study investigates different factors that influence performance in the Elementary Linear Algebra (ELA) course taught at Brigham Young University. These factors include student characteristics such as true freshman status and college enrollment, and content-specific factors such as how performance on essential topics affects overall performance in the course. To analyze the various research questions posed in the study, I used robust linear mixed effects models with random effects controlling for the hierarchical structure of the data. The statistically significant results from these models indicate that (i) true freshmen perform better than other students on exams and in the ELA …

Measuring And Modeling Nonlinear Vibrations In Structures With Mechanical Joints, Suzanna Gilbert

Theses and Dissertations

Many assembled structures have bolted or riveted joints. Aside from providing a convenient method of assembly, mechanical joints have an important effect on the structure's dynamic response to its environment. Friction and microslip within the joints help to damp out unwanted vibration. However, the joints also introduce nonlinearity into the response. Most notably, the natural vibrational modes of the structure no longer have constant natural frequencies and damping ratios. Rather, they shift as a function of vibration amplitude. Several methods exist to characterize the dynamics of nonlinear systems, yet they are generally validated on simple benchmark structures, and many still …

Travels In West Africa: A Critical Edition, Erere Iwhi

Student Works

First published in 1897, Mary Henrietta Kingsley’s Travels in West Africa became one of the most influential travel narratives of the Victorian era, changing the way British audiences encountered accounts of West Africa and its peoples. This critical edition examines the book not only as a travel narrative but also as a material artifact shaped by the historical, publishing, and cultural networks that guided its production, circulation, and reception. Extending its analysis beyond Kingsley's experiences of exploration, this edition investigates the forces behind the book’s creation, including Kingsley’s intellectual development, her identity as an independent female traveler and writer, and …

Curious Contradictions: A Critical Edition Of 'The Great War In England In 1897,' By William Le Queux, Jacob D. Liljenquist

Student Works

Written by William Le Queux in 1894, The Great War in England in 1897 is a work of invasion literature, and a book full of curious contradictions. Once popular and now forgotten, its material construction belies its status as sensational literature. This critical edition of the 4th edition copy of the novel housed in the L. Tom Perry Special Collections evaluates the book's conception, creation, and reception, and provides a material bibliography of the HBLL's unique copy, all with the aim to reveal and explain the contradictions in the book as a product of imperial culture.

The Relationship Between Light Physical Activity And 10-Year Weight Change In 2,868 U.S. Adults: A National Health And Nutrition Examination Survey Investigation, Chloe Diane Cory

Theses and Dissertations

The prevalence of obesity has steadily increased over the past several decades. About 13.4% of Americans aged 20-74 had obesity in 1960-1962 and the prevalence has steadily increased to 40.3% in 2021-2023--more than a 3-fold increase. PURPOSE: The aim of this study was to evaluate the relationship between time spent in light physical activity (LPA) and 10-year weight change in a random sample of 2868 women and men representative of the U.S. adult population. METHODS: Data were used from the National Health and Nutrition Examination Survey (NHANES) from the 2003-2006 data cycles. Participants were limited to non-pregnant U.S. …

A New Model For Predicting Two-Zone Parameters Based On Geometric Modifications In Computational Fluid Dynamics Simulations, Jason B. Metten

Theses and Dissertations

This study uses Computational Fluid Dynamics (CFD) to create a new and improved model for key Two-Zone modeling parameters, 𝜒 and 𝛿2𝑝. It explores how geometric changes to centrifugal compressors impact these modeling parameters. While centrifugal impellers are an important part of many systems, the flow through such impellers is inherently complex, making performance often difficult to predict. There are many approaches for modeling this complex flow environment, one method being the Two-Zone model developed by Dave Japikse. Values for 𝜒 and 𝛿2𝑝 are often determined from data obtained from test rigs or correlations. In this study high-fidelity CFD simulations …

Evaluating Feature Importance In Antarctic Soil Biota Models: An Exploratory And Modeling-Based Approach, Rachel E. Hunter

Undergraduate Honors Theses

The Antarctic McMurdo Dry Valleys are some of the harshest environments on our planet. They may not support higher fauna and vegetation, but the environment has a fairly diverse soil microbiome. The soil microbiome consists mainly of invertebrate nematodes (Plectus, Scottnema, and Eurydiolaimus), rotifers, and tardigrades. In this study, we examined ecological modeling approaches to enhance our understanding of the processes contributing to the overall population. In this process, two extensive data sets were used: the Biotic Effects Experiment (BEE) and the Elevational Transect (ET) data set compiled by the McMurdo Dry Valleys Long Term Ecological Research program were combined. …

The Policy Project: Translating Menstrual Equity Resources, Ashley Jackman

Undergraduate Honors Theses

This creative project focuses on translating key materials from The Period Project, a campaign by the Utah nonprofit The Policy Project that tackles menstrual inequity by pushing for free period products in schools and public spaces. Their educational toolkits guide students and parents toward menstrual resources and outline compliance requirements for school administrators. However, a significant portion of Utah’s population speaks Spanish at home, and current toolkits are not readily available in Spanish. As a Spanish translation major, I saw this as an opportunity to use my skills in a real-world setting, as the translated toolkit will be immediately electronically …

Multiple Baseline Single-Case Study: Narrative Resiliency Intervention For Couples With Adverse Childhood Experiences, Emma Elizabeth Allen

Theses and Dissertations

A multiple baseline single case study design was used to examine the effects of a narrative and resiliency-based intervention for couples with adverse childhood experiences (ACEs). Using piecewise multilevel modeling (MLM), the study evaluated changes in depressive symptoms, dyadic coping (DCI), and growth and empowerment measure (Emotional Empowerment Scale [EES-14] and 12 Scenarios [12S]) across waitlist and treatment phases. Five couples (10 individuals) participated in up to 17 waves, with staggered baseline and treatment lengths across dyads. Results indicated significant fixed effects of the 12S subscale for growth and empowerment during the treatment phase. There were no statistically significant fixed …

Spiritual Booster, Yoshihiko Ariizumi

Spiritual Proficiency

Are you experiencing spiritual stagnation amidst the noise of a busy life?

This Spiritual Booster is not just knowledge—it’s a practical, high-performance toolkit designed to switch your spiritual journey from "idle" to maximum momentum.

Inside, you will find four core methodologies distilled for high impact:

1. Zoom Out to God's Perspective: The "Zoom-Out Technique" to shift instantly from anxiety to an eternal viewpoint.

2. Habits of Revelation: Use the "Revelation Notebook" and "Retrospective Analysis" to consistently hear the Lord’s voice.

3. Strategic Defense: Apply Chief Moroni's "Anti-Temptation Strategy" and routines to keep the "fire" of your covenants burning.

4. The Art of Focus: Practical …

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Making Space For Learning: Textile Based Learning Resources For Material Reuse, Mary-Evelyn Mcconkie Howell

Instructional Psychology and Technology Graduate Student Projects

This paper outlines two textile-based learning resources that I created for Making Space Thrift (MST), a community-focused creative thrift store in Utah. MST expressed a need for instructional materials that promote intentional material use, support customer well-being, and strengthen ties with their community. To address these needs, I conducted interviews with stakeholders and local textile hobbyists to understand what learning resources would benefit MST. As a result, I created two projects. The first is called Making Peace with Materials, an interactive, decision-based digital experience housed on the MST website. This resource helps learners navigate the emotional, practical, and sustainable …

The Impact Of Social Factors On Vagally Mediated Parasympathetic Activity, Andrew Scot Proctor

Theses and Dissertations

Loneliness and social disconnection are recognized risk factors for morbidity and mortality, yet the psychophysiological pathways remain contested. This dissertation examines how social factors relate to vagally mediated parasympathetic activity indexed by heart rate variability (HRV) and tests whether conversational interventions with a human or a large-language-model (LLM)-based companion can acutely reduce loneliness and enhance connection. Across two university sites (BYU, UCSD), N=297 participants (18-27 years) were randomized to (a) a reciprocal self-disclosure conversation with a trained human confederate, (b) a parallel, vocalized LLM chatbot conversation, or (c) a non-social, vocal reading control. Resting HRV (RMSSD, SDNN, HF-HRV) was recorded …

Experimental And Theoretical Characterization Of Molten Salt Thermal Conductivity, Jacob C. Numbers

Theses and Dissertations

Molten salts form an ideal heat transfer fluid for advanced energy generation systems, including molten salt reactors (MSR). Accurate characterization of molten salt thermal conductivity is needed to confidently predict transient thermal behavior and optimize salt properties. Measurements are hindered by salts' challenging material properties, which---in the case of the needle probe device---induced unaccounted physical changes that limited its accuracy and repeatability. Sparse thermal conductivity data in general is exacerbated by a limited fundamental understanding of molecular energy transfer in liquids. This work extends the experimental capacity for compositional studies using the needle probe and proposes a theoretical model for …

From Liahona To Talk: An Inspired Method 1, Yoshihiko Ariizumi

Spiritual Proficiency

If our past series, Actionable Insights from the Liahona, laid out essential principles like a detailed instruction manual, this time, I'm shifting gears into a softer narrative.

The core question is: "How do we make sure these essential principles stick?"

To answer that, I've sprinkled in approachable metaphors and a bit of humor that will make you want to slap your knee and exclaim, "That's exactly my story!" My goal is that, once you've finished reading or listening, these vital principles will adhere to your mind like a magnet on a refrigerator door.

From Liahona To Talk: An Inspired Method 2, Yoshihiko Ariizumi

Spiritual Proficiency

In my previous series, Actionable Insights from the Liahona, I introduced many principles that felt like tightly cut jewels. This time, I'm changing the tempo and delivering those same principles set to a heart-stirring melody. I've set aside the rigid outlining and repackaged the principles with relatable stories and humorous metaphors that I hope will make you chuckle and think, "Oh, I know that feeling!" My wish is that this new approach helps these vital principles to gently drop anchor deep within your heart.

Actionable Insights From The Liahona 2, Yoshihiko Ariizumi

Spiritual Proficiency

The original data exceeded 350 pages of Japanese text, resulting in a total of 37 different summarized principle/action plan sets. What is fascinating is that, while a certain amount of conceptual overlap is expected, intriguing new perspectives constantly emerge. Therefore, I highly recommend reviewing all 37 sets repeatedly (only a portion of which is included in this document). You will find countless hints for spiritual growth hidden throughout, often leading to significant breakthroughs.

This 63-page article is filled with treasures. Towards the end, you will also find shorter supplementary articles on techniques such as how to "zoom out" (gain an …

Bayesian Alignment Prior To Connectionist Temporal Classification Loss, Lawry Sorenson

Theses and Dissertations

We propose revisions of Connectionist Temporal Classification (CTC) loss and forced alignment to support longer input sequences. CTC loss is normally used for training in speech and handwriting recognition tasks when the labels are not fully aligned with the data, while forced alignment is a downstream task that finds the optimal path for segmentation purposes. The current implementations consider all possible alignments between the input and label, which grows exponentially with the size of the input. We show that in cases when silence is removed and speaking rate is consistent, the true alignment is a mostly straight line across time …

Commutative Schur Rings Over Characteristic 2 Special Orthogonal Groups, Andrew Haviland

Theses and Dissertations

We study commutative Schur rings over the special orthogonal groups $\mathrm{SO}^{\pm}(n,2)$ that contain the class $\mathcal{C}$ of transvections. We show that the partition of $\mathcal{C}$ determined by a commutative Schur ring has either one or two parts. We classify all remaining partitions of $\mathcal{C}$ that could be determined by a commutative Schur ring.

Liahona Project Data Set 3 Up To June, 2021, Yoshihiko Ariizumi

Spiritual Proficiency

This document is a collection of highlights extracted from more than 1000 articles from the Japanese online Liahona magazines, spanning from the beginning of 2019 to June, 2021. Each article was individually checked to extract inspirational principles and highlights from personal experiences, serving as a resource to develop Spiritual Proficiency and build the foundation for Wits Psychology (With the Spirit Psychology). The document is 97 pages long.

Liahona Project Data Set 5 Up To 2025, Yoshihiko Ariizumi

Spiritual Proficiency

This document is a collection of highlights extracted from more than 800 articles from the Japanese online Liahona magazines, spanning from the beginning of 2024 to the end of 2025. Each article was individually checked to extract inspirational principles and highlights from personal experiences, serving as a resource to develop Spiritual Proficiency and build the foundation for Wits Psychology (With the Spirit Psychology). The document is 61pages long.

In Their Own Voice: A Grounded Theory On Overcoming Internet Gaming Disorder, Jayson Carmona

Theses and Dissertations

Internet Gaming Disorder (IGD) is highly comorbid with depression, anxiety, sleep loss, lower productivity, and social isolation. The DSM-5 TR designates IGD as a condition for further study, however the ICD-11 has designed Gaming Disorder as a codified illness. While most studies look at IGD via a medical model lens focusing almost exclusively on symptomology, very little research explores the process of recovery in IGD. In this grounded theory inquiry, a theory of recovery from IGD is generated. Secondary internet data consisted of 113 posts on the subreddit /r/StopGaming on reddit.com. This resulted in 196 pages of data. Researcher used …

What Is The Liahona Project?, Yoshihiko Ariizumi

Spiritual Proficiency

This article summarizes the genesis of the Liahona Project, the process involved, and the resulting materials.

Liahona Project Data Set 4 Up To 2023, Yoshihiko Ariizumi

Spiritual Proficiency

This document is a collection of highlights extracted from more than 1000 articles from the Japanese online Liahona magazines, spanning from July, 2021 to the end of 2023. Each article was individually checked to extract inspirational principles and highlights from personal experiences, serving as a resource to develop Spiritual Proficiency and build the foundation for Wits Psychology (With the Spirit Psychology). The document is 69 pages long.

Toward Understanding Multi-Agent Decision Making In Complex Societies, Jonathan Skaggs

Theses and Dissertations

This dissertation investigates Multi Agent Decision Making (MADM) within Complex Societies (CS), systems of interdependent agents whose collective behaviors emerge from local interactions. Such emergent dynamics are nonlinear and difficult to predict, posing significant challenges towards understanding how individual decisions scale to societal outcomes. Existing approaches often fall short of capturing the combined attributes of CS, including asymmetry, decentralization, and adaptivity. To address this gap, we introduce new models and analyses of agent strategies that explain how cooperation and stability can arise in CS. Structured around three interrelated projects, this dissertation enhances our comprehension of MADM in CS. The research …

Gets: Greenhouse Environment Time Series, Scott Grimshaw, Natalie J. Blades, Grant R. Mcqueen

ScholarsArchive Data

This dataset contains high-frequency environmental measurements from a single greenhouse used to study multivariate statistical process control under strong autocorrelation. The data consist of a continuous Phase 1 monitoring period of approximately four weeks, during which environmental sensors recorded conditions inside the greenhouse once per minute.

The primary variables included in the archived dataset are:

• date – Date-time stamp at one-minute resolution (local greenhouse time).

• co2_ppm – Carbon dioxide concentration in parts per million (ppm).

• humidity_pct – Relative humidity (%).

• soil_temp_F – Soil temperature in degrees Fahrenheit.

Examining The Impact Of Social Media On The Nutrition Decisions Of College Students And Their Attitudes Toward Nutritional Guidelines, Katlyn Neibaur

Undergraduate Honors Theses

Social media is becoming an increasingly popular platform used by young people to garner information, but this information is not always accurate. Understanding the degree of influence social media has on college students’ dietary habits and attitudes toward nutritional guidelines is vital for improving nutrition literacy efforts and creating policies to protect against nutritional misinformation. This study examined the associations between the social media habits of college students, their attitudes toward nutritional guidelines, and their ability to detect nutritional misinformation. A cross-sectional survey was conducted with 457 undergraduate students at Brigham Young University. The content validity of the survey was …

An Updated Perspective On Learning, Andrew S. Gibbons Iii

Faculty Publications

The subject of human learning is revisited. The emergence of new research findings in cognitive neuroscience and related disciplines using new imaging tools and techniques has revealed the existence of not one but two complementary learning systems. A newly-discovered prospection process, interacting with both memory systems, has been revealed as the pivotal mechanism of learning that leads to new experience and new memory records. The universal impact of emotion on this process also receives a new emphasis. This, coupled with the ever-present social environment, show learning to be the result of conversational activity. The existence of this more complete and …

When Scripts Diverge: Strengthening Low-Resource Neural Machine Translation Through Phonetic Cross-Lingual Transfer, Ammon Shurtz

Theses and Dissertations

Multilingual Neural Machine Translation (MNMT) models enhance translation quality for low-resource languages by exploiting cross-lingual similarities during training--a process known as knowledge transfer. This transfer is particularly effective between languages that share lexical or structural features, often enabled by a common orthography. However, languages with strong phonetic and lexical similarities but distinct writing systems experience limited benefits, as the absence of a shared orthography hinders knowledge transfer. To address this limitation, we propose an approach based on phonetic information that enhances token-level alignment across scripts by leveraging transliterations. We systematically evaluate several phonetic transcription techniques and strategies for incorporating phonetic …

Scrupulosity Ocd And How It Can Affect Our Clients’ Relationship With God, Annabella Hagen

Issues in Religion and Psychotherapy

This article explores various aspects of scrupulosity OCD, starting with the misconceptions about OCD that persist in society and their impact on treatment, along with a discussion of the disorder’s prevalence. It examines common OCD themes, provides a deeper understanding of religious scrupulosity, and clarifies how individuals become trapped in the scrupulosity OCD cycle. Specific triggers within the LDS Church are highlighted, alongside religious considerations such as distinguishing scrupulosity from genuine religiosity and discerning between spiritual promptings and OCD-driven thoughts. The article also addresses barriers to care unique to the LDS community and offers clinician recommendations, including an overview of …

Parental Grief And Loss After Gender Transition: Navigating Ambiguous And Disenfranchised Loss In Latter-Day Saint Families, David Haralson, Chelsea Johnson, Jeff Bennion, Orion Maxfield

Issues in Religion and Psychotherapy

Parents of transgender or gender nonconforming children sometimes experience profound grief and loss, particularly within religious communities that hold specific doctrines regarding gender. This article examines the unique challenges faced by parents in The Church of Jesus Christ of Latter-day Saints (LDS Church) when a child undergoes gender transition. By exploring the concepts of ambiguous loss and disenfranchised grief, we aim to provide a framework for understanding these parents' emotional experiences. The intersection of LDS doctrines and policies on gender with contemporary gender theories creates complex emotional environments for families to navigate. We present the Integrity and Investment Model as …