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Terahertz From Electrons, Electronics From Terahertz, Clayton D. Moss Aug 2023

Terahertz From Electrons, Electronics From Terahertz, Clayton D. Moss

Theses and Dissertations

Time-domain terahertz spectroscopy (THz-TDS) is a valuable technique for studying collective ultrafast phenomena. Several mechanisms exist for converting ultrashort optical laser pulses into coherent THz sources. Broadband THz pulses can be obtained from electron currents in air plasma, which requires combinations of different colors of light to be most effective. I report multi-color generation schemes of THz pulses that deliver coherent THz output. Experimental and theoretical work using the photocurrent model describe ways to use non-harmonic color combinations to utilize several sources of light available in a table-top laser setup. Additionally, THz-TDS is used to study a variety of ultrafast …

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Robust Localization And Landing For Autonomous Unmanned Aerial Vehicles In Maritime Environments, Alexander D. Jordan Aug 2023

Robust Localization And Landing For Autonomous Unmanned Aerial Vehicles In Maritime Environments, Alexander D. Jordan

Theses and Dissertations

This thesis presents methods for robust precision landing of unmanned air vehicles (UAVs) on platforms at sea. Localization methods are proposed for UAV-to-boat state estimation for systems that employ real- time kinematic (RTK) global navigation satellite system (GNSS) and vision sensors. Solutions for GNSS-only are first presented, followed by the fusion of GNSS and vision. The important problem of sensor intrinsic calibration is solved with a novel offline batch estimation approach. Hardware results are presented for all methods. Our calibration of GNSS-to-camera is shown to estimate sensor offsets with millimeter level accuracy. Localization systems are combined with custom state machines …

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Full Issue Aug 2023

Full Issue

Insights: The Newsletter of the Neal A. Maxwell Institute for Religious Scholarship

No abstract provided.

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New Committees Will Set Media And Electronic Policies Aug 2023

New Committees Will Set Media And Electronic Policies

Insights: The Newsletter of the Neal A. Maxwell Institute for Religious Scholarship

FARMS has formed two new committees to give the Foundation guidance on nonprint forms of distribution. As opportunities grow to disseminate faithful scholarship on the Book of Mormon and related subjects through new means, the Foundation wants to be ready to respond appropriately.

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Farms Audiovisual Materials Can Be Found In Video Stores And Libraries Aug 2023

Farms Audiovisual Materials Can Be Found In Video Stores And Libraries

Insights: The Newsletter of the Neal A. Maxwell Institute for Religious Scholarship

FARMS is now providing some public libraries and video rental stores with copies of videos, audiotapes, and transcripts of Hugh Nibley's Teachings of the Book of Mormon course videos and the FARMS Book of Mormon Lecture Series, as part of its mission to make Book of Mormon research findings available widely, promptly, and economically.

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The Connection Between Linguistic Insecurity And Cultural Identity In Spanish Heritage Language Learners, Sara Nicole Gardner Aug 2023

The Connection Between Linguistic Insecurity And Cultural Identity In Spanish Heritage Language Learners, Sara Nicole Gardner

Theses and Dissertations

The United States is a host to several ethnicities that bring both their own languages and their own culture to an already large mixing pot. The children of the immigrants who grow up learning both English and their families' heritage language are called heritage language learners (HLLs). The first objective of the study was to find out whether foreign language anxiety had a relationship with reading and writing in Spanish for HLLs in high school. The second was to ascertain whether perception of ethnic identity also had a relationship with reading and writing in Spanish for heritage language learners in …

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Investigating How And Why Students Pay Attention And Engage In A High School German Level One Class, Lindsey Marie Nielson Aug 2023

Investigating How And Why Students Pay Attention And Engage In A High School German Level One Class, Lindsey Marie Nielson

Theses and Dissertations

This qualitative study investigates how and why students pay attention and engage in a German Level One class in a public high school in Utah. Data were collected from surveys, classroom observations, video/audio recordings, and interviews. Findings indicate that three major factors influenced student engagement during this study-type of motivation (extrinsic or intrinsic), type of learning activity (individual, partner, or class), and the mode of activity (technology, paper, or speaking). Additional findings offer support for the idea that metacognition may enhance language learning.

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Enhancing Local Hydrological Services With The Geoglows Ecmwf Global Hydrologic Model, Jorge Luis Sanchez Lozano Aug 2023

Enhancing Local Hydrological Services With The Geoglows Ecmwf Global Hydrologic Model, Jorge Luis Sanchez Lozano

Theses and Dissertations

Global hydrological models can fill crucial gaps for providing essential information on water resources management, flood and drought forecasting, and assessing the impacts of climate change. However, these models face several challenges that must be addressed to ensure their applicability at local scales. These challenges include effectively managing Big Data, proper communication, adoption, and achieving accuracy in their results. Achieving accuracy in global hydrological models is critical for acceptance in decision-making, but poses the most significant challenge due to the extensive amount of observed data required and the complexity of obtaining and preparing such data for model evaluation. In this …

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Real-Time Spatial Interference Removal And Maximum Ratio Combining In Communication Systems, Adam Gary Whipple Aug 2023

Real-Time Spatial Interference Removal And Maximum Ratio Combining In Communication Systems, Adam Gary Whipple

Theses and Dissertations

Radio frequency interference (RFI) is undesired and commonplace. Using a subspace projection method to spatially remove the interference from a phased array system gives results of a 30 dB interference null rejection (INR). Unmanned systems have been developed to observe underwater activity and communicate their observations to passing aircraft. These systems are currently limited by their use of a single transmitter. The uplink can be improved by using a dual-antenna beam steering approach to maximize the signal-to-noise ratio (SNR) the aircraft receives. This approach demonstrates an increase in SNR of 3 dB when compared to a single transmitter.

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The Acceptability Of Relationship-Centered Communication Partner Training For Couples Impacted By Aphasia: A Mixed Methods Pilot Study, Kathryn-Anne Pertab Aug 2023

The Acceptability Of Relationship-Centered Communication Partner Training For Couples Impacted By Aphasia: A Mixed Methods Pilot Study, Kathryn-Anne Pertab

Theses and Dissertations

This study explored the acceptability of Relationship-Centered Communication Partner Training (RC-CPT) for couples impacted by aphasia. Three couples participated in the program across two sessions. Surveys were administered to assess outcome measures of their marital relationship and communication confidence before and after participation in RC-CPT. The quantitative findings were analyzed using descriptive statistics. Overall, participants generally maintained or experienced improvements in accessibility, responsiveness, engagement, conflict, conflict resolution, and communication within their marriage after participating in RC-CPT. Additionally, individuals with aphasia demonstrated enhanced communication confidence scores. During the third session, couples completed a semi-structured interview to share their experiences with the …

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Semantically Structured Creative Computer Systems & Automated Evaluation Of Creative Artifacts, Brad Spendlove Aug 2023

Semantically Structured Creative Computer Systems & Automated Evaluation Of Creative Artifacts, Brad Spendlove

Theses and Dissertations

Computational creativity seeks, in part, to develop autonomous agents that exhibit creativity. Language is an ideal creative domain for studying computer agents due to its rich interconnectedness and immense space of possible combinations. This dissertation explores the design, testing, and theory of creative computer systems that write microfiction and play the board game Codenames. The designs of these systems are all similarly based on building up creative artifacts from the underlying structure of the relationships between words. A critical component of the creative process is the ability to evaluate the quality of creative output. Human and automated assessment of our …

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Groundwater Flow Across The Coyote Wash Fault And Cedar Mesa Anticline Near St. Johns, Arizona, Stephanie Lynn Latour Aug 2023

Groundwater Flow Across The Coyote Wash Fault And Cedar Mesa Anticline Near St. Johns, Arizona, Stephanie Lynn Latour

Theses and Dissertations

As the demand for water increases across the southwestern United States, the region's utilization of and dependence on water stored in groundwater aquifers has risen in kind. The Coconino Aquifer (C-aquifer) underlies much of the southwestern Colorado Plateau and is a primary source of groundwater in northeastern Arizona. One of the largest commercial users of water from the C-aquifer in Apache County, Arizona, is Springerville Generating Station, a coal-fired power plant owned and operated by Tucson Electric Power. The area surrounding the power plant, located between the cities of Springerville and St. Johns, Arizona (the Springerville-St. Johns area), is geologically …

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Examining The Validity Of A Dynamic Assessment Of Narrative Language To Identify Language Disorder In Diverse School-Age Children, Samantha Kate Rainsdon Meek Aug 2023

Examining The Validity Of A Dynamic Assessment Of Narrative Language To Identify Language Disorder In Diverse School-Age Children, Samantha Kate Rainsdon Meek

Theses and Dissertations

The United States is a culturally and linguistically diverse country. Few assessments used in educational settings have been developed that can be used appropriately with culturally and linguistically diverse students, and research has shown that static, norm-referenced assessments are often biased against these students. One alternative method that shows great promise for overcoming the limitations of static, norm-referenced tests is dynamic assessment. Despite the research and recommendations that support the use of dynamic assessments, relatively few dynamic assessments have been formally developed for the purpose of identifying language disorder. Therefore, the current study sought to determine the validity of a …

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The Effects Of Real-Time Feedback On The Positive To Negative Ratio For An Educator Supporting Students With Emotional And Behavioral Disorders, Bailey Jane Schaeffer Aug 2023

The Effects Of Real-Time Feedback On The Positive To Negative Ratio For An Educator Supporting Students With Emotional And Behavioral Disorders, Bailey Jane Schaeffer

Theses and Dissertations

Students with Emotional and Behavioral Disorders (EBD) in the United States are often underserved by the education system, which contributes to their academic difficulties and poor student outcomes. Research on Positive-to-Negative (PN) response ratios suggest that maintaining a high ratio helps decrease inappropriate behaviors and improve academic outcomes for students with EBD. The current study investigates the effects of a high PN ratio on the behavior of an educator of students with EBD by utilizing a tracking app to help meet a target PN ratio. One preservice special education teacher working as a paraeducator was recruited to participate in the …

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Code Switching Use, Attitudes, And Identity: Differences Among Spanish-English Bilinguals In Canada, Mexico, And The United States, Ana Sofia Rubalcava Karmanov Aug 2023

Code Switching Use, Attitudes, And Identity: Differences Among Spanish-English Bilinguals In Canada, Mexico, And The United States, Ana Sofia Rubalcava Karmanov

Theses and Dissertations

Code-switching (CS) has been extensively studied for a variety of purposes and under many contexts. In recent years there has been a shift in CS literature to better understand the sociological forces that affect speakers’ use of CS. While in earlier literature, CS was perceived negatively by both speakers and the general public (Milroy & Muysken, 1995; MacGregor-Mendoza, 2021; Anderson & Toribio, 2007; Fishman, 1967), it has since been shown that many bilinguals view CS positively. More recent research suggests that bilinguals perceive CS as an important part of their identity and use it to show they belong to particular …

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What Brings Bipoc Preservice Special Educators To The Field Of Education?, Charly Mcallister Taylor Aug 2023

What Brings Bipoc Preservice Special Educators To The Field Of Education?, Charly Mcallister Taylor

Theses and Dissertations

BIPOC special educators are a needed profession throughout the country. The listener's guide was used to determine how 30 BIPOC special educators identified themselves in application essays to a special education teacher program. The essays were then used to determine common themes in BIPOC students' decision to become a special educator. These common themes were found throughout specific moments of someone's life. These moments are referred to as plotlines. These plotlines were broken down into categories: prior to elementary school, elementary school, junior high/middle school, high school, and post high school. It was found that during the elementary school plotline, …

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Grief In Children With Disabilities And How It Is Portrayed In Children's Picture Books, Erjola Gjini Aug 2023

Grief In Children With Disabilities And How It Is Portrayed In Children's Picture Books, Erjola Gjini

Theses and Dissertations

Even though today's children's literature provides a wide range of topics, including books on death and grief, and much has been done to represent children with disabilities accurately and positively, there is still room for improvement. This descriptive study sought to understand how individuals with disabilities were represented in 177 grief-themed children's books from 1965-2023. From the results, only seven books included representations of individuals with disabilities. Additionally, the literary devices such as euphemisms or metaphors utilized in the books to describe how death was represented may inadvertently perpetuate inaccessibility to resources about grief (Berns, 2004). Thus, when choosing books …

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Who Is Talking About The Children? A Systematic Literature Review Of The Missing And Murdered Indigenous Women Crisis Effects On Children, Angela Marcel Fields Aug 2023

Who Is Talking About The Children? A Systematic Literature Review Of The Missing And Murdered Indigenous Women Crisis Effects On Children, Angela Marcel Fields

Theses and Dissertations

The ongoing Missing and Murdered Indigenous Women (MMIW) crisis has affected thousands of families throughout the United States and Canada, resulting in probable trauma to children in the families and communities for generations. Although awareness of the crisis has been growing in recent years through avenues such as social media (#MMIW, etc.), little action has been taken to stem the crisis and its effects. The effects of the crisis on the children left behind is a compelling question that is not often addressed in the media, however. A systematic review of the scientific literature from the United States and Canada …

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Mahu And Native Hawaiian Culture: Experiences Of Non-Heteronormativity, Rachel Beth Chapman Aug 2023

Mahu And Native Hawaiian Culture: Experiences Of Non-Heteronormativity, Rachel Beth Chapman

Theses and Dissertations

There are extensive amounts of psychological research that highlight the needs and experiences of racial ethnic minority populations in general and more specifically minority sexual identities and genders, also referred to as non-heteronormative populations (Alexeyeff & Besnier, 2014). However, there continues to be a lack of representation in the research of Polynesians and an even greater lack of representation of non-heteronormative Polynesians and their experiences (Allen et al., 2011). Māhū, a population of native Hawaiians who identify as non-heteronormative or third gender, are almost completely absent from scholarly work. This study examines the experience of self-identified māhū and how mental …

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Benefits And Challenges Of Computer-Assisted L2 Chinese Learning In Higher Education, Min Hu Aug 2023

Benefits And Challenges Of Computer-Assisted L2 Chinese Learning In Higher Education, Min Hu

Theses and Dissertations

The first article is a literature review that analyzed 32 articles on computer-assisted L2 Chinese learning in higher education from 2005-2021. Findings revealed current trends, such as mobile-assisted language learning (MALL) and the use of Web 2.0 technologies, and the importance of speaking as the most researched language skill. Most studies employed mixed methods and showed the positive effects of computer-assisted learning on L2 Chinese skills. Challenges identified included limited access to technology, technical difficulties, lack of time and support, and insufficient online/blended pedagogies and competencies. The second article used Ajzen's Theory of Planned Behavior to examine L2 Chinese instructors' …

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Survey Of Reading Habits And Dialogic Book Reading Practices In Parents Of Preschool-Aged Children, Kimberly Cronin Aug 2023

Survey Of Reading Habits And Dialogic Book Reading Practices In Parents Of Preschool-Aged Children, Kimberly Cronin

Theses and Dissertations

This study explored the reading habits and dialogic book reading practices in parents of preschool-aged children. Early literacy practices in the home influence the development of language skills and academic learning of children. These practices were explored by directly by asking parents to reflect and report on their literacy habits in the home setting. It specifically addresses current reading behaviors that parents implement when reading with their child and observations of their child's attention and involvement during book-sharing sessions. This study was part of a larger study focusing on developing and implementing dialogic reading workshops for parents. A survey with …

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The Effect Of Prior Exposure To Open Badging On Student Motivation To Earn Additional Badges, Tyler J. Westerberg Aug 2023

The Effect Of Prior Exposure To Open Badging On Student Motivation To Earn Additional Badges, Tyler J. Westerberg

Theses and Dissertations

This study addresses student attitudes about open badges (after having been required to earn badges as part of their course work or having earned them through the library) and their desire to earn additional optional badges offered across campus. Research has presented conflicting evidence about the potential effect of open badges on student motivation, usually studying students who have had no previous experience with open badges. However, research has also found that open badges are still largely new and unknown for many people, which may affect initial motivation to earn badges. For this reason, our study considered the potential impact …

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3rd Party Ip Encryption From Netlist To Bitstream For Xilinx 7-Series Fpgas, Daniel Hutchings Aug 2023

3rd Party Ip Encryption From Netlist To Bitstream For Xilinx 7-Series Fpgas, Daniel Hutchings

Theses and Dissertations

IP vendors need to keep the internal designs of their IP secret from the IP user for security or commercial reasons. The CAD tools provided by FPGA vendors have some built-in functionality to encrypt the IP. However, the IP is consequently decrypted by the CAD tools in order to run the IP through the design flow. An IP user can use APIs provided by the CAD tools to recreate the IP in an unencrypted state. An IP user could also easily learn the internals of a protected IP with the advent of new open-source bitstream to netlist tools. The user …

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Using De Novo Transcriptomes To Decipher The Relationships In Cutthroat Trout Subspecies (Oncorhynchus Clarkii), Andrea Leena Kokkonen Aug 2023

Using De Novo Transcriptomes To Decipher The Relationships In Cutthroat Trout Subspecies (Oncorhynchus Clarkii), Andrea Leena Kokkonen

Theses and Dissertations

Cutthroat trout (Oncorhynchus clarkii) is a salmonid native to Western North America. For almost 200 years, the taxonomy of these species has fluctuated as ichthyologists and fisheries managers alike have tried to understand the diversity seen within these fishes. In the 1950s, Robert Behnke reexamined the cutthroat trout and identified 14 subspecies based on morphological observations, Pleistocene events, and modern geographic ranges. These designations were instrumental in preserving the remaining diversity of cutthroat trout. Over time, molecular techniques (i.e. karyotypes, allozymes, and mtDNA) have largely replicated Behnke's phylogenies. However, these studies have revealed that some of these relationships are consistently …

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Evapotranspiration In Urban And Agricultural Systems With Interacting Irrigation And Nitrogen Fertilizer Treatments, Samantha R. Shumate Aug 2023

Evapotranspiration In Urban And Agricultural Systems With Interacting Irrigation And Nitrogen Fertilizer Treatments, Samantha R. Shumate

Theses and Dissertations

Nitrogen (N) fertilizer and irrigation are important inputs for all managed plant species, especially in arid and semi-arid climates. The interaction between N management and irrigation can lead to more sustainable practices. This is true for both agricultural and urban environments. Precision nutrient management has been widely adopted by producers in recent decades, and water conservation has become an important goal for turfgrass managers. In urban systems, our goal was to evaluate Kentucky bluegrass (Poa pratensis L.) to determine response to three N fertilizer rates and three irrigation rates in all possible combinations. The main and interacting treatment effects were …

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The Effect Of Shadowing With Text Presentation On Intermediate-Level Esl Learners' Pronunciation, Mishelle Kehoe Aug 2023

The Effect Of Shadowing With Text Presentation On Intermediate-Level Esl Learners' Pronunciation, Mishelle Kehoe

Theses and Dissertations

The purpose of this research was to replicate previous studies (Foote et al., 2017; Martinsen et al., 2017) investigating the technique of shadowing and its impact on English language learners’ oral fluency and intelligibility. The target population for this study was intermediate-level English language learners as prior shadowing research has focused on advanced learners (Foote et al., 2017) and beginner learners (Lu, 2021). The study involved both a control group (n=10) and a treatment group (n=10), with each group participating in a semester-long class at Brigham Young University’s English Language Center (ELC). Both groups participated in pre and post testing …

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L2 English And Language Anxiety: Accuracy, Comprehensibility, And Speech Rate Across Three Communication Tasks, W. Cole Thorpe Aug 2023

L2 English And Language Anxiety: Accuracy, Comprehensibility, And Speech Rate Across Three Communication Tasks, W. Cole Thorpe

Theses and Dissertations

This study examines how second language (L2) English learners differ in their amount of language anxiety across three communication tasks: a formal academic speaking test, an informal casual interaction with a classmate during an activity in pairs, and a formal interview with an unfamiliar native speaker. It also addressed whether and how their language anxiety across the three tasks affected their accuracy, comprehensibility, and rate of speech. Thirty-seven intermediate-high L2 English learners participated in the three communication tasks. They also completed a general language anxiety questionnaire and three anxiety inventories--one before each task. Results demonstrated that the speaking exam caused …

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School Psychologists' Recommendations For Tiered Interventions That Target Social-Emotional Competencies, Brandi Alise Bezzant Aug 2023

School Psychologists' Recommendations For Tiered Interventions That Target Social-Emotional Competencies, Brandi Alise Bezzant

Theses and Dissertations

Many schools advocate for addressing the diverse needs of students through a multi-tiered model of prevention and intervention known as the Multi-Tiered System of Supports (MTSS) framework. This framework often incorporates the use of universal screening to obtain data concerning students' academic and/or social-emotional and behavioral needs. School teams are expected to design and implement tiered strategies in response to data concerning students' social-emotional needs; this can be a challenging facet of MTSS. To aid in this endeavor, this qualitative study elicited school psychologists' recommendations for (a) tiered interventions that target secondary students' social-emotional competency needs and (b) professional learning …

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Side-Channel Leakage From The Advanced Encryption Standard On Field Programmable Gate Arrays, Kaden Makechnie-Hardy Aug 2023

Side-Channel Leakage From The Advanced Encryption Standard On Field Programmable Gate Arrays, Kaden Makechnie-Hardy

Undergraduate Honors Theses

As field programmable gate arrays (FPGAs) perform increasingly critical cryptography, researchers study the safety of these computations. One such compromise on the safety of cryptography is the side-channel attack. These attacks exploit sources of information called leakage that escape a cryptographic system in ways the original design did not intend. One dimension of a successful side-channel attack is the collection of leakage. This research configures the Advanced Encryption Standard (AES) on an FPGA and demonstrates strategies for collecting three types of side-channel leakage: power consumption, temperature emissions, and ring oscillations.

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The Effect Of Speaking Context On Articulatory Kinematics In Habitual And Clear Speech, Lauren Elizabeth Clarke Aug 2023

The Effect Of Speaking Context On Articulatory Kinematics In Habitual And Clear Speech, Lauren Elizabeth Clarke

Theses and Dissertations

This study examined the effect of speaking contexts on articulatory kinematics in habitual and clear speech conditions. Ten male and 10 female participants (ages 18"“29) completed speaking tasks in three contexts and two conditions. The contexts were word, phrase, and passage, with both mid-sentence and end of-sentence stimuli in the phrase and passage contexts. The two conditions were habitual and clear speech. Participants had sensors attached to the mid-tongue, jaw, lower lip, and upper lip, and an electromagnetic articulograph tracked their movements. Three tokens for each stimulus were analyzed for duration, displacement, and velocity. Articulatory coordination was measured through absolute …

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