Digital Commons Network^™

System Design And Validation Of Radio Astronomy Phased Arrays, Rebecca Shiu Haymore

Theses and Dissertations

Modern radio astronomy instruments require a wide field of view and high sensitivity. To this effect, BYU and Cornell University have developed the Advanced L-band Phased Array Camera for Astronomy (ALPACA), a fully cryogenic 69 dual-pol dipole array that produces 80 beams on the sky with 305 MHz instantaneous bandwidth centered on 1500 MHz. Integration testing has demonstrated proper beamforming and calibration, and ALPACA has been commissioned as an all-sky monitor to search for bright transients. Commissioning testing for ALPACA measured an element system noise temperature of 24 K and a beamformed system noise temperature of 17 K, making ALPACA …

Teachers' Perspectives: Literacy Recommendations For Newcomers With Limited Language Proficiency, Rachel Edmunds

Theses and Dissertations

Although multilingual literacy instruction has expanded in recent years, less is known about how teachers can support newcomers with limited language proficiency in Grades 4-6. This gap is significant as many teachers report feeling underprepared to meet the needs of their multilingual learners, especially those with limited language proficiency. The purpose of this qualitative study was to explore the literacy practices and strategies that teachers found effective when working with students who are multilingual newcomers with limited language proficiency (NLLPs) in Spanish and English in Grades 4-6 along with their implementation experiences. Drawing from Vygotsky's sociocultural theory, this qualitative study …

"Where's The Writing?": A Content Analysis Of Writing Practices In Second Grade Core Knowledge Language Arts, Jessica Pierce

Theses and Dissertations

One current and increasingly common trend in elementary and early childhood English Language Arts (ELA) instruction is the use of scripted literacy programs requiring teachers to implement the curriculum with fidelity. This has consequences for writing instruction as students continue to score below proficiency levels on national writing assessments (National Center for Educational Statistics, 2011), and the tendency for a mismatch between recommended writing instruction and classroom practice. Therefore, the purpose of this content analysis was to explore the writing instruction found in the Knowledge Strand of the 2nd-grade Core Knowledge Language Arts (CKLA) curriculum. Analyses revealed three overarching themes: …

Constructing Meaning With First Graders Using Wordless Picturebooks During Interactive Read-Alouds, Madison Weeter

Theses and Dissertations

Wordless picturebooks are an underutilized tool in elementary classrooms despite growing recognition as a valuable literacy tool. Research remains limited on how wordless picturebooks influence meaning-making during interactive read-aloud discussions. The guiding question for this study was: "How do first-graders and their teacher construct meaning during three interactive read-alouds of wordless picturebooks?" This qualitative study was conducted in a first-grade classroom. Data was collected through audio and video recordings of three interactive read-alouds facilitated by the teacher-researcher. Recordings were transcribed and analyzed using reflective thematic analysis (RTA). Six themes were created from analysis of the data: (a) cracking the code, …

Biomechanical And Talar Cartilage Responses To Running In Individuals With Chronic Ankle Instability, Minsub Oh

Theses and Dissertations

Context: Chronic ankle instability (CAI) has shown altered movement patterns and joint loading, which increase the risk of posttraumatic ankle osteoarthritis. Abnormal vertical ground reaction force (vGRF) during running may contribute to talar cartilage degeneration; however, the acute biomechanical and cartilage responses to running in individuals with CAI remain unclear. Purpose: The purpose of this study was to compare running biomechanics and changes in talar cartilage thickness and T2 relaxation times before and after running between individuals with CAI and healthy controls. Methods: Twenty individuals with CAI and 20 healthy controls completed running biomechanics and magnetic resonance imaging (MRI) sessions. …

Radiation Effects On The Amd Versal Running An Automatic Modulation Classification Model, Allan D. Howe

Theses and Dissertations

With the recent increase of interest into artificial intelligence (AI), graphics processing units (GPUs) have been used as the main hardware architecture for AI computation. Because of their high power consumption and large size, it is necessary to consider other architectures to perform AI computing in outer-space where size, weight, power, and cost (SWaP-C) are tightly constrained. One such architecture is the Advanced Micro Devices (AMD) Versal Adaptive Compute Acceleration Platform (ACAP), which can achieve acceptable AI throughput at a lower power and size compared to a GPU. As the Versal ACAP gets used in space applications, it is necessary …

Talking Teaching For Change: How Productive Teacher Collaborations Contribute To Teacher Efficacy Beliefs And Student Achievement Gains, Xiaohang Zhang

Theses and Dissertations

Teacher collaboration and teacher efficacy beliefs are complex, multifaceted constructs that play critical roles in student learning and influence one another in multiple ways. School collaborative culture, including collegial trust, collective learning, and shared responsibility, has also been identified as an important factor shaping both effective teacher collaboration and teacher efficacy beliefs. This study employed a sequential explanatory mixed-methods design to (a) examine the relationships between features of collaborative discourse and teachers' instructional efficacy beliefs, as well as the extent to which school type and school collaborative culture influence these relationships, and (b) explore how these collaborative discourse features are …

Full Issue

The Thetean: A Student Journal for Scholarly Historical Writing

No abstract provided.

Student Awards

The Thetean: A Student Journal for Scholarly Historical Writing

Awards for Outstanding Papers Written in 2025

Dam Negotiations: Water, Diné Sovereignty, And The Navajo Dam, George Smith

The Thetean: A Student Journal for Scholarly Historical Writing

On July 30, 1958, contractors working for the Bureau of Reclamation broke ground on the Navajo Dam, located about 35 miles east of Farmington, New Mexico. Diné Tribal chairman Paul Jones had called the dam a “new hope for [his] people,” anticipating increased agricultural and industrial capacity from irrigation and flow management. Though officially approved in 1962, the contingent Navajo Indian Irrigation Project (NIIP) that was to provide those many of those benefits remained to be completed in 2024. By contrast, the San Juan Chama Project (SJCP), the other project contingent upon the dam, diverted water from the San Juan …

Marcion And The Crisis Of Second-Century Christianity, Samuel Petersen

The Thetean: A Student Journal for Scholarly Historical Writing

Almost a century after the death of Christ and his original apostles, the 2nd-century Judeo-Christian church found itself in a vicious struggle for survival catalyzed by an ongoing negotiation between the church’s traditional Jewish roots and establishing its own identity. The loose confederation of Jesus-believers fought to gather themselves into a functional body as they wrestled with questions surrounding the very nature of the Christian faith.

“No Hen Should Herald The Dawn Lest Misfortune Follow”: Gender, History, And Power Sima Guang’S Comprehensive Mirror, Zoe Ngan

The Thetean: A Student Journal for Scholarly Historical Writing

It was not a particularly notable occasion when Emperor Gaozong 高宗 of the Tang dynasty (AD 618–907) established Wu Zetian 武則天 as a mid-ranked concubine in 654. Emperors, throughout Chinese history, were polygamous rulers who acquired no shortage of concubines per the Rites of Zhou 周禮, an ancient ritual text which proposed that rulers obtain 121 wives and consorts. Wu’s nomination signified the unpredictability of imperial favour and almost certainly did not turn heads when her appointment occurred.

“I, Too, Want To Be Free”: Women And The Birth Control Movement In Utah, 1914–1940, Evelyn Wilcox

The Thetean: A Student Journal for Scholarly Historical Writing

Like many other women, I too, want to be free,” explained a 33-year- old Utah woman in a 1925 letter to Margaret Sanger, a prominent leader in the birth control movement. This woman, whose name is unknown, was married to a 78-year- old man with whom, she thought, “in her ignorance,” that she would never have any children—she was proven wrong. With six children under the age of eight at the time and wanting to prevent having more, this woman’s predicament reflects Sanger’s mission to inform everyday women of birth control so they could make their own reproductive choices. After …

Christianity Behind The Iron Curtain: How Creative Arts Gave A Voice To The Voiceless, Riana Johnson Wills

The Thetean: A Student Journal for Scholarly Historical Writing

In 1988, the Union of Soviet Socialist Republics (USSR) held celebrations across the Soviet Union to mark the Millennium of Christianity in Russia, commemorating a thousand years since the baptism of Rus in 988. While this was a monumental day for Christians, many believers across the Soviet Union felt a sense of dissonance. For decades, religious freedom and worship had not been privileges they enjoyed. Thousands of Christians suffered for their belief. The communist regime began in 1922 with Vladimir Lenin. The USSR built upon Marxist ideology where atheism is a fundamental and they expected nationwide compliance to these ideologies. …

Rationed Victory: A Study Of American Civilian Rationing In World War Ii, Alex Moulder

The Thetean: A Student Journal for Scholarly Historical Writing

In any conflict or competition it is often said that the winner is “fueled to victory.” This could come as a result of training, diet, stamina, support from others, or sheer willpower. Even small variations in any of these elements can have significant consequences and affect outcomes. The same can be said about civilians during wartime, especially during the largest conflict of the twentieth century, World War II. The war cemented the United States as a global power, thanks in part to its massive economy, technologies, and industries, which helped to overcome the war of attrition against the Axis powers. …

“It Was The Women Who Kept It On”: The 1984–85 National Union Of Mineworkers Strike In Wales, Brett Bodily

The Thetean: A Student Journal for Scholarly Historical Writing

On March 3rd, 1984, more than 140,000 miners, all members of the National Union of Mineworkers (NUM) walked out on strike in protest of proposed colliery, or “pit” closures. Years of disputes culminated in a major showdown between the largest labor union in the United Kingdom and a resurgent national conservatism led by Margaret Thatcher— leader of the Tory party. The communities built around coal mining recognized the Tory pit closure plan for what it was—an existential threat to their way of life. Women within these communities rose to the occasion and took on leadership and organizational responsibilities, many for …

Leasing Land, Losing Sovereignty: Us Military Land Leasing In Okinawa, Japan, Kathryn Blau

The Thetean: A Student Journal for Scholarly Historical Writing

Military land leasing in Okinawa has played a central role in limiting Okinawan political sovereignty since the end of World War II by fostering economic dependence on US military bases and enabling policies that override local opposition. Tracing the evolution of the leasing system under both American occupation and Japanese administration reveals how land expropriation, compensation policies, and increasingly generous financial incentives encouraged reliance on base-related income while discouraging advocacy for land reversion and base reduction. The analysis further demonstrates how the Japanese government's legal enforcement of mandatory lease renewals, particularly during the 1996 Okinawa land dispute, curtailed the rights …

Editor's Preface, Gabe Smock

The Thetean: A Student Journal for Scholarly Historical Writing

This editor's preface explores the origins and enduring mission of The Thetean, BYU's undergraduate history journal. Through archival research in the L. Tom Perry Special Collections, the journal's founding history is traced to its inaugural 1967 edition, revealing the origin, pronunciation, and meaning of its distinctive name as a reference to Phi Alpha Theta, the history honor society. The preface highlights the journal's longstanding commitment to encouraging scholarly research, providing publication opportunities, and introducing students to the work of historians. By recovering the journal's own history, it underscores the broader value of historical inquiry: understanding the past to better …

Front Matter

The Thetean: A Student Journal for Scholarly Historical Writing

No abstract provided.

Equivocation Analysis Across Continuous And Discrete Memoryless Channels, Md Munibun Billah

Theses and Dissertations

Physical-layer security uses the noise already present in the channel to keep a message secret without making any assumption about the eavesdropper's computing power. In Wyner's wiretap channel model, coset coding uses randomness to map the message to many codewords and protects against information leakage from an active eavesdropper. The secrecy provided by such codes is measured by their equivocation, which is the eavesdropper's remaining uncertainty about the message after she observes her channel. So computing equivocation is an important aspect of analyzing the wiretap channel model. Many channels of practical interest have no closed-form expression for equivocation, and exact …

A Danish Romantic Organ Voice: The Music Of J.P.E. Hartmann And The Marcussen & Søn Organ, Benjamin T. Tischner

Undergraduate Honors Theses

This thesis examines the organ works of J.P.E Hartmann (1805-1900), an organist and composer who was at the center of the Romantic movement in Denmark. Hartmann, along with contemporaries Niels W. Gade and A.P. Berggreen, helped establish a musical style unique to Denmark during the Romantic era. This thesis analyzes this Danish musical style as it pertains to Hartmann’s compositions, defining what it means for this music to be uniquely Danish. In this regard, Hartmann’s organ works can be distinguished from other corners of the Romantic organ repertoire, especially the organ music being composed in Germany around the same time. …

Instructional Slides From Molten Salt Electrochemistry Symposium (Moses) 2026, Devin Rappleye, Carlos Mejia, Alex Peroff

Faculty Publications

This instructional slide set was developed for the 2026 Molten Salt Electrochemistry Symposium (MoSES) as an introduction and review of fundamental electrochemical concepts and methods used in molten salt systems. The material is intended for students, researchers, and practitioners seeking to better understand and interpret electrochemical measurements in high-temperature molten salts.

Topics include electrochemical thermodynamics, kinetics, mass transfer, electrode potentials, cyclic voltammetry, chronopotentiometry, chronoamperometry, square-wave voltammetry, electrochemical impedance spectroscopy (EIS), and common approaches for analyzing electrochemical data. Emphasis is placed on building physical intuition, understanding underlying assumptions, recognizing common experimental artifacts, and connecting electrochemical signals to real chemical and transport …

Blended Learning Development In Mongolian K-12 Education: A Systematic Review And Psychometric Study Of Teacher Readiness, Batbold Bukhchuluun

Theses and Dissertations

This dissertation examines blended learning (BL) in Asian K-12 education through a systematic review and an empirical validation study in Mongolia. The first study reviews peer-reviewed K-12 BL research published between 2000 and 2024 using PRISMA procedures. We analyzed 42 studies to identify publication trends, geographic representation, BL model adoption, articulation of physical and pedagogical design layers, implementation challenges, and reported outcomes. Findings indicate that BL research is concentrated in a limited number of countries, frequently employs flipped learning models, and often lacks detailed pedagogical specification. Common challenges include infrastructure limitations, teacher preparedness, and institutional support. The second study adapts …

Transcriptomic And Genomic Insights Into Nutrient Stress Responses And Subgenome Evolution In Chenopodium, Ashley Kathleen Marcheschi

Theses and Dissertations

Chenopodium is a diverse genus of nutritionally and ecologically important species in the Amaranthaceae family. This thesis investigates two outstanding questions in the genus: how Chenopodium quinoa responds transcriptionally to nutrient deficiency and how Australian Chenopodium species are related through their subgenomic ancestry and evolutionary history. First, we characterized transcriptomic responses of C. quinoa to deficiencies of twelve essential macro- and micronutrients across leaf and root tissues using RNA sequencing. Leaves showed the strongest responses under nitrogen, potassium, magnesium, and zinc deficiency, while roots responded more evenly across conditions. Recurring responses included suppression of photosynthesis, remodeling of translational machinery, reactive …

Developing An Understanding Of Concavity Built On Covariation, Jade E. Gregg

Theses and Dissertations

This study investigated how six students developed a quantitative understanding of concavity founded in covariational reasoning through a series of task-based teaching interviews. A key finding was the importance of multivariational reasoning--the coordination of more than two variables--in helping students reason deeply about concavity in context. Common difficulties, including confusion about negative rates and overreliance on visual representations, served as productive opportunities for learning when addressed through carefully designed tasks and discussions. The findings extend existing frameworks of covariational reasoning and highlight instructional approaches that can support students in developing a robust, quantity-based understanding of concavity.

Property Tables For Thermally Perfect Gases At Low Pressure, Travis J. Moore, Matthew R. Jones

Faculty Publications

Tables giving gas properties at low pressure enable the efficient analysis of processes in which the gas is approximated as thermally perfect but not calorically perfect. In addition to specific enthalpy and specific internal energy, thermally perfect gas tables include special functions that depend only on temperature—relative pressure and relative specific volume. These functions may be used to determine pressure, volume, and temperature of thermally perfect gases undergoing hypothetical isentropic processes. However, the definitions of these functions included in widely used thermodynamics textbooks are vague, inconsistent, or incorrect. The intent of this work is to discuss common inaccuracies in the …

A Chorus Of Voices: Student And Teacher Shared Dialogical Experiences And Insights, Jennifer Anne Reynolds

Theses and Dissertations

Dialogue is inherently tied to learning, but as a secondary English Language Arts (ELA) classroom teacher it can be difficult to facilitate classroom dialogue that provides authentic learning opportunities for every student. I wanted to learn more about the student experience, so I implemented an action research study to increase my understanding of how students learn through dialogue. My research question was: How does collaborative languaging, to facilitate student-teacher interaction, lead to improved classroom mediation, authentic learning, dialogue, and development? I conducted transformative action research in my classroom, focusing on students enrolled in my general English 10 classes. In an …

The Effects Of Social Impact Mentoring On Women Seeking Employment, Adriano Santos Carneiro

Theses and Dissertations

Women seeking employment often face barriers such as limited professional networks, reduced access to career guidance, and lack of consistent support during the job-search process. This study examined the effects of a social impact mentoring program that connected women seeking employment with women professionals who served as mentors. Participants included 11 mentees who were seeking employment opportunities and 11 mentors who were employed or recently employed in professional roles. Using a mixed-methods pre-post design, the study collected quantitative survey data and open-ended responses before and after four virtual mentoring sessions. Mentee measures focused on confidence in securing employment and readiness …

Beyond Static Measures: The Predictive Validity And Classification Accuracy Of A Dynamic Assessment Of Decoding For Early Elementary, Bridgett Bakula

Theses and Dissertations

Early and accurate identification of children at risk for reading difficulty is essential to prevent long-term academic failure, yet traditional static assessments often struggle to distinguish between a true reading disorder and a lack of prior instruction. This is particularly evident in the early grades, where floor effects and cultural/linguistic biases limit the classification accuracy of traditional screeners. This study investigated the predictive validity and structural utility of the modifiability index of a dynamic assessment (DA) of decoding, administered in kindergarten. Unlike static measures that evaluate "already actualized" knowledge, DA measures a student's learning potential and modifiability, or the capacity …

問題を抱えた宣教師すら主役に変わる, Yoshihiko Ariizumi

Learning, Teaching, & Researching Optimization

困難を抱える宣教師を、個人面談などを通して少しずつ正常な状態へと導いていくことは、大きな時間と労力を要する働きです。伝道部会長は、ただでさえ多忙な職務の中で、こうした対応にかなりの時間を割かれ、伝道部全体を導くという本来の責任を果たす上で、大きな負担となっているのではないかと拝察いたします。

しかしながら、このような一対一の対応には、一つの見落とされがちな側面があるように思います。それは、支援を受ける宣教師を、常に「助けられる側」という受け身の立場に置き続けてしまうことです。その結果、本人の内側にある力が引き出されず、かえって成長の機会を狭めてしまっているのではないでしょうか。

そこで本提案では、発想を転換いたします。困難を抱える宣教師を「問題として対処する対象」としてではなく、今のありのままの状態で、他の宣教師の成長に貢献できる存在として位置づけ直すのです。他の宣教師を助けるという経験を通して、自分自身を見つめ直し、自分にも価値ある貢献ができるということを実感し、結果としてより主体的で生産的な宣教師へと成長していく――これが本提案の核にある考え方です。ここには、一人一人の宣教師の中に天与の可能性を信じる、信仰が必要とされます。

具体的なイメージとして、同じ住居に生活する４人の宣教師を例に考えてみます（もし２人だけなら、そのペア２つを電話でつなぐことも可能）。この４人全員を対象に、まずオリエンテーションを行います。その際に伝えるべき要点は次の４つであり、これらを参加者自身がしっかりと理解することが、やる気やスムーズな導入の鍵となります。一方的な説明ではなく、４人で話し合いながら共に学んでいく形を取ると、より効果的でしょう。

ここで特に大切にしたいのは、特定の一人の宣教師の「問題」に焦点を当てないことです。あくまで４人全員が互いに支え合う関係を築くことを目的とし、その中で、困難を抱えていた宣教師もまた、仲間の成長を後押しする大切な役割を担う――そのような、前向きで対等な関係性を作り出すことが、この提案の目指すところです。