Digital Commons Network^™

Bacteria In Blood Particles For Drug Delivery, Bill Pitt

BYU Research Development Office Research Networking Conference

Biomedical engineering, drug delivery, bacteria, blood, particles, polymers

Fulbright Program Opportunities, Kristen Kellems

BYU Research Development Office Research Networking Conference

Fulbright program opportunities

Multi-Material Additive Manufacturing (3d Printing), Jason Weaver

BYU Research Development Office Research Networking Conference

Multi-material Additive Manufacturing, Hybrid Manufacturing, Design for Additive Manufacturing (DfAM), 3D printing applications

Molten Salt Processing And Electrochemistry, Devin Rappleye

BYU Research Development Office Research Networking Conference

Used Nuclear Fuel Processing (for Reuse and Disposal), High-temperature metal electrodeposition, Actinide Chemistry

Exploring Cybersecurity Career Interest Through Youth Camps, Justin Scott Giboney

BYU Research Development Office Research Networking Conference

Cybersecurity

Tribology And Precision Manufacturing Of Biomaterials, Quentin Allen

BYU Research Development Office Research Networking Conference

Surface texturing; lubrication; joint replacements; biomaterials; precision manufacturing

An Artist And A Mother, Tara L. Carpenter

BYU Research Development Office Research Networking Conference

Contemporary art, Matricentric Feminism, Art Education, Arts Integration in Public Schools

Smart Seeds - A Platform For Wide Area Land Management, Brian Mazzeo

BYU Research Development Office Research Networking Conference

Micropower Circuits Laboratory

Transforming Water Education To Address The Global Water Crisis, Ben Abbott

BYU Research Development Office Research Networking Conference

water education, water crisis

3d Printing For Lab-On-A-Chip, Gregory P. Nordin

BYU Research Development Office Research Networking Conference

3D printed microfluidics, biological and chemical sensors, nanophotonics and integrated optics, micro- and nanofabrication, MEMS, and microfluidics

Mental Health Services And Implementation Science, Cole Hooley

BYU Research Development Office Research Networking Conference

Scaling up mental health services, Dissemination and implementation science, Systems science (system dynamics, social network analysis, agent-based modeling, etc.)

Examining Covid-19 Vaccine Hesitancy Among Faith Communities Of Color, Kari O'Grady

BYU Research Development Office Research Networking Conference

Resilience sensemaking processes, social determinants of family and community health, vaccine hesitancy, Covid-19 medical frontliner burnout and resilience, applications of statistics in public health and medicine, exclusionary mechanisms and factors that facilitate negative socio-economic and health outcomes for black immigrants in the United States

Understanding Host-Pathogen Interactions, Brett E. Pickett

BYU Research Development Office Research Networking Conference

Gene Expression, Signaling Pathway Analysis, RNA-Sequencing, Drug Repurposing, Infectious Diseases, Diagnostics, Cancer, Comparative Genomics, Machine Learning

Using Generalizability Theory And The Erp Reliability Analysis (Era) Toolbox For Assessing Test-Retest Reliability Of Erp Scores Part 1: Algorithms, Framework, And Implementation, Scott A. Baldwin, Peter E. Clayson, Kalie A. Carbine, Joseph A. Olsen, Michael J. Larson

Faculty Publications

The reliability of event-related brain potential (ERP) scores depends on study context and how those scores will be used, and reliability must be routinely evaluated. Many factors can influence ERP score reliability; generalizability (G) theory provides a multifaceted approach to estimating the internal consistency and temporal stability of scores that is well suited for ERPs. G theory's approach possesses a number of advantages over classical test theory that make it ideal for pinpointing sources of error in observed scores. The current primer outlines the G-theory approach to estimating internal consistency (coefficients of equivalence) and test-retest reliability (coefficients of stability). This …

Executive Functioning, Caregiver Monitoring, And Medication Adherence Over Time In Adolescents With Chronic Kidney Disease, Cyd K. Eaton, Kara Mcrae Duraccio, Michelle N. Eakin, Tammy M. Brady, Cozumel S. Pruette, Thomas Eckmann, Susan R. Mendley, Shamir Tuchman, Barbara A. Fivush, Kristen A. Riekert

Faculty Publications

Objective: To evaluate associations between executive functioning and caregiver adherence monitoring with objective antihypertensive medication adherence over 24 months in adolescents with chronic kidney disease (CKD).

Methods: Adolescents (N = 97, 11–20 years old) with CKD taking antihypertensive medication and their caregivers were recruited from three pediatric nephrology clinics. At baseline, adolescents and caregivers reported on adolescents’ executive functioning and caregivers reported on their adherence monitoring. Antihypertensive medication adherence was objectively assessed via electronic monitoring at baseline and every 6 months after for 24 months. Associations between executive functioning, caregiver monitoring, and longitudinal adherence were evaluated with linear mixed models. …

"There Was One Samuel": Possible Multiple Sources For The Samuel Narrative, Dan Belnap, Daniel L. Belnap

Faculty Publications

During the second day of Christ’s ministry to the New World, a curious event took place. Having taught and commented on a number of biblical texts, Christ then had Nephi3 present his own record for review.1 The inspection uncovered a missing event that Christ brought to the attention of the gathered disciples: “Verily I say unto you, I commanded my servant Samuel, the Lamanite, that he should testify unto this people, that at the day that the Father should glorify his name in me that there were many saints who should arise from the dead, and should appear unto many, …

Psychometric Investigation Of The Attachment To God Inventory And Its Implications For The Psychology Of Religion And Spirituality, Justin Paul Zamora

Theses and Dissertations

The purpose of this study is to conduct a psychometric investigation of the Attachment to God Inventory (AGI; Beck & McDonald, 2004) using a national sample of socioeconomically and religiously diverse young adults commonly referred to as millennials (i.e., persons born between 1980 and 1996; Pew Research Center, 2018). Confirmatory factor analytic (CFA) results failed to yield satisfactory fit for the AGI model using the entire sample and a Christian-only subsample. Alternative model specifications that accounted for method factors, higher-order factors, and bi-factors also failed. Exploratory factor analysis (EFA) suggested alternative factor solutions that were cross-validated using CFA. Support for …

Dual-Axis Acousto-Optic/Electro-Optic Deflectors In Lithium Niobate For Full-Parallax Holographic Video Displays, Mitchell Robert Adams

Theses and Dissertations

A major limitation of acousto-optic (AO) leaky-mode modulator based holographic displays is their inability to present full-parallax. We propose that full-parallax capabilities can be bestowed on these displays by integrating an electro-optic (EO) phased array into the architecture. We validated this concept by rendering computational models and by fabricating and testing a basic two-axis AO/EO deflector prototype in lithium niobate. This was, to our knowledge, the first instantiation of an integrated, hybrid AO/EO deflector. The prototype had a 6° deflection range along the AO-axis, and a 3° deflection range along the EO-axis. A series of models provide us with a …

Considering Social Impact When Engineering For Global Development, Hans Jorgen Ottosson

Theses and Dissertations

Every manufactured product has an environmental impact, a social impact, and an economic impact. As engineers, we should do our best to understand how our design decisions influence these impacts (the three pillars of sustainability), and at the same time make decisions that collectively lead to maximum positive impacts, or minimum negative impacts on the economy, environment, and society. Many times, engineers show interest and want to design for all three pillars of sustainability but are often constrained to focus on the environmental and economic aspects, leaving out social sustainability due to lack of understanding and resources. In practice, this …

The Perceived Effect Of Pause Length And Location On Speaker Likability And Communicative Effectiveness, Julia M. Price

Theses and Dissertations

Previous studies have examined the effect of atypical speech pause on conversational fluency and how the conversational listener perceives the speaker. The present study investigated the effect of pause duration of increasing length and in differing sentential locations on listener perceptions of communicative effectiveness and speaker likability. One neurotypical male and one neurotypical female speaker recorded three sentences from the Quick Aphasia Battery, and artificial pauses of varying lengths (250 ms, 400 ms, 550 ms, 700 ms, 850 ms, and 1 sec) were inserted before the subject, verb, and object of each sentence. The six baseline (unmodified) sentences were also …

Stakeholders' Perceptions Of Available Services In A Rural Community To Effectively Educate Individuals With Autism Spectrum Disorder, Candice Walker

Theses and Dissertations

Prevalence of autism spectrum disorder (ASD) has increased 150% over the last 20 years, affecting all communities, with future projections of further rise. This is a particular concern for the public education system, where laws mandate that schools provide meaningful education to all students. Resources must be in place to provide the level of support children with ASD require for a successful educational experience. These resources are often expensive and require specialized training to secure. Rural schools face unique barriers meeting the standards set forth through federal law. To determine the most productive use of available resources as well as …

Physical Health As A Predictor Of Change In Self-Reported Presenting Problems In Couple Therapy, As Mediated By Emotional Regulation, Janette J. Driscoll

Theses and Dissertations

Recent literature in couple therapy has demonstrated the effects of physical health on some common presenting problems; however, few studies have considered progress as a construct on its own, irrespective of client-identified presenting problem. The current study used an Actor-Partner Interdependence Mediated Model to determine the connection between each partner's physical health and their own and their partner's self-reported progress in couple therapy, mediated by each partner's emotional regulation. Physical health was measured every four sessions using the Health-Related Quality of Life scale, and progress was measured by the Presenting Problem Progress Questionnaire given each time a couple attended therapy. …

Concepts For Rapid-Refresh, Global Ocean Surface Wind Measurement Evaluated Using Full-System Parametric Extrema Modeling, M. Patrick Walton

Theses and Dissertations

Satellite wind vector data is integral to atmospheric models and forecasts. Currently, the limited refresh rate of global wind vector measurement systems makes it difficult to observe diurnal variation of mesoscale processes. Using advancements in the underlying subsystem technologies, new satellite wind scatterometers may be possible that increase temporal resolution, among other performance metrics. I propose a method for parametrically modeling the extreme performance range of a complex system. I use this method to develop a model of the space of possible satellite wind scatterometer designs. I validate the model using point designs of heritage scatterometers. Finally, I present two …

Fire And Rodent Consumer Effects On Plant Community Assembly And Invasion In North American Deserts, Rebekah L. Stanton

Theses and Dissertations

This dissertation explores the differential effects of fires and rodent communities on native and invasive desert plant communities. Chapter one examines the impacts of fire and repeat fires on fuel loads in two different Utah desert sites, one in the cool Great Basin Desert and one in the hyper-arid Mojave Desert, over the course of four years. We found that both desert sites responded with varying intensities to a single burn, but the effects of a reburn were not as pronounced. We also found that our Great Basin Desert site had a stronger response to fire than our Mojave Desert …

Pre-Columbian Cultivation Of Agave Species Through Rock Mulching: Potential For Modern Applications, Hector Genaro Ortiz Cano

Theses and Dissertations

As global temperatures rise, cultivation of C3 and C4 crops in arid and semi-arid regions will face major challenges in producing biomass for billions of people. Conventional agricultural techniques that require copious irrigation will need to be complemented with dryland-farming techniques and drought-tolerant crops, such as those from the Agave genus, which use CAM photosynthesis. In the past and present, humans from arid and semi-arid regions of America have maintained a symbiotic relationship using and cultivating Agave (Agavoideae, Asparagaceae). In pre-Columbian times, Native Americans from arid regions relied on Agave cultivation as a subsistence crop to produce food, medicine, and …

Linguistics Of Russian Media During The 2016 Us Election: A Corpus-Based Study, Devon K. Terry

Theses and Dissertations

The purpose of this study is to perform a linguistic analysis of Russian mass media focused on its coverage of the 2016 US presidential election. It will be a corpus-based study, using a corpus as a foundational source for quantitative and qualitative data. This study will use a collection of keywords from the corpus and analyze their contexts as they pertain to Hillary Clinton and Donald Trump. This study uses corpus linguistic research tools such as sentence tokenization, Key Words in Context (KWIC), sentiment analysis, word embedding visualization, word-vector math, word frequency lists, and collocate analysis as part of the …

Text-To-Speech Systems: Learner Perceptions Of Its Use As A Tool In The Language Classroom, Joseph Chi Man Mak

Theses and Dissertations

Text-to-speech (TTS) systems are ubiquitous. From Siri to Alexa to customer service phone call options, listening in a real-world context requires language learners to interact with TTS. Traditionally, language learners report difficulty when listening due to various reasons including genre, text, task, speaker characteristics, and environmental factors. This naturally leads to the question: how do learners perceive TTS in instructional contexts? Since TTS allows controls on speaker characteristics (e.g. gender, regional variety, speed, etc.) the variety of materials that could be created--especially in contexts in which native speakers are difficult or expensive to find--makes this an attractive option. However, the …

Cytotypes Of The Simulium Arcticum Species Complex In The American Pacific Northwest, Gerald F. Shields

Western North American Naturalist

The larval polytene chromosomes of 17 of the 22 known cytotypes of the Simulium arcticum Malloch complex were analyzed and compared at 59 collection sites in the Pacific Northwest of the United States. Cytotypes range from those that were broadly distributed, such as IIL-9, which was found at 25 different sites, to those that were found at only one or two sites, such as IIL-73 74. Cytotypes are “clustered” in a geographic sense, suggesting that once a new cytotype is described, if it is found again, it will be found nearby. The cytotype S. arcticum IIL-9 was found at 11 …

Grazing Rotation On Restored Rangeland As A New Tool For Medusahead Control, Casey Spackman, Clinton A. Stonecipher, Kip E. Panter, Juan J. Villalba

Western North American Naturalist

Intake of medusahead (Taeniatherum caput-medusae (L.) Nevski) by livestock is typically low given the poor nutritional quality of the weed, but utilization may increase through the provision of supplemental nutrients. This study compared cattle that initially grazed on a supplemented pasture (SUP) of established cool-season perennial grasses and forbs to nonsupplemented cattle that grazed only medusahead-infested rangeland (NSUP) in order to determine whether supplemental nutrients could increase use of medusahead. The quality of different forage types in the plant community and grazing events on these forage types were assessed. Supplemented animals grazed medusahead to a greater extent than NSUP …

Production Of Pure Vanadium: Industry Review And Feasibility Study Of Electron Beam Melt Refining Of V–Al Alloys, Devin Rappleye, Rob Haun

Faculty Publications

The vanadium industry has experienced significant change over the last two decades with the emergence of vanadium redox flow batteries for grid-level energy storage, the growing demand for high-strength steel, and the selection of vanadium as a critical material in multiple countries. This review presents the status of the vanadium industry examining production processes and detailing facilities. The available information for each producer is presented including vanadium products and capacity. The production of pure vanadium is identified as a potential vulnerability for some nations where vanadium metal is needed in small, yet strategic, applications and globally only two producers of …