Digital Commons Network^™

High-Energy Proton Testing Of Sensitive Electronics For Use On Modular Infrared Molecules And Ices Sensor (Mirmis) Instrument, S. Thirumangalath, E. Briede, A. Näsilä, V. Gupta, C. Boatella, H. Wojciech, V. Kletzl, R. Trops, N. E. Bowles

Small Satellite Conference

The Comet Interceptor (CI) mission is ESA's first "F" class mission, selected in June 2019. This mission consists of three spacecraft: Spacecraft A (main spacecraft), Spacecraft B1 (supplied by the Japanese space agency JAXA), and Spacecraft B2. In this paper, we highlight the Modular Infrared Molecular and Ices Sensor (MIRMIS) instrument, which is integrated into the CI Spacecraft A's scientific payload. In addition to hardware contributions from Finland (VTT Finland) and the UK (University of Oxford), the MIRMIS instrument team includes members from the University of Helsinki and NASA's Goddard Space Flight Centre. MIRMIS covers the spectral range of 0.9 …

Low Cost Sar Antenna With Wide Swath And High Ground Resolution, Hirobumi Saito, Kosei Ishimura, Takashi Tomura, Jiro Hirokawa

Small Satellite Conference

This paper describes our developments of SAR (Synthetic Aperture Radar) antennas for low-cost, wide swath and high ground resolution (0.5-0.25m). The antennas are 1D deployable, plane slot array antennas with a wide elevation beam pattern. RF is fed to each panel with a novel patented technology, non-contact waveguide system between panels. These types of SAR antennas make feasible a newly proposed DiskSat with SAR sensor system. The SAR antenna 600MHz bandwidth in X band for 0.5m SAR resolution is made from carbon fiber reinforced plastic (CFRP) for light weight and thermal stability. Furthermore, range resolution improves with wider frequency bandwidth. …

Parents’ Perspectives About Tele-Intervention Services For Their Children Who Are Deaf Or Hard Of Hearing, Lauri H. Nelson, Amanda M. Rudge, Pamela Dawson, Demi Culianos, Cheryl Broekelmann, Arlene Stredler-Brown

Journal of Early Hearing Detection and Intervention

Purpose: In the first of a two-part survey series, this cross-sectional survey study explored parent perceptions of tele-intervention (TI) services for their young children who are deaf or hard of hearing. Using Likert rating scales, the survey queried parent confidence in understanding their child’s language development, perceptions of the coaching and support they received, the parent-professional partnership, and overall views and recommendations. Data were collected March-May 2020, not realizing the survey release would coincide with the Covid-19 pandemic and the influx of unexpected virtual services. For this reason, data were stratified between those who had received TI services for more …

The Journal Of Early Hearing Detection And Intervention: Volume 7 Issue 2, Pages 1-73

Journal of Early Hearing Detection and Intervention

No abstract provided.

Storing Water For The Environment: Operating Reservoirs To Improve California’S Freshwater Ecosystems, Sarah Null, Jeffrey Mount, Brian Gray, Kristen Dybala, Gokce Sencan, Anna Sturrock, Barton Thompson, Harrison Zeff

Watershed Sciences Faculty Publications

California’s freshwater ecosystems—its lakes, rivers, floodplains, meadows, natural and managed wetlands, and estuaries—are a vital part of the state’s natural infrastructure. These ecosystems provide numerous benefits, including water supply, hydropower, flood control, fisheries, recreation, and cultural and aesthetic value. They are also home to the nation’s most diverse array of plant and animal communities, with numerous freshwater species found only in California (Jensen et al. 1993; Grantham et al. 2017).

Evaluating The Benefit Of The Islamic Banking System In Uae (United Arab Emirates), Hadjer Abir Bensaha

Undergraduate Honors Capstone Projects

A ubiquitous number of articles have examined the finance and banking systems used throughout the world (conventional). This paper aims to provide some evidence of the value of the Islamic banking system and why the current non-Islamic systems should implement certain aspects of the Islamic finance system. To make this claim, I rely on secondary research data to support my arguments. Islamic banking has experienced rapid global growth. This paper uses the United Arab of Emirates as the scope of this research because both banking systems have operated in the UAE for several years. Therefore, existing data and statistics from …

Relationships Between Middle School Students' Adaptive Reasoning When Creating Learner-Generated Drawings And Partner Talk During Inquiry-Based Mathematical Tasks, Angela M. Frabasilio

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Adaptive reasoning is one of five components students use to develop mathematical expertise and become mathematically proficient. When students adapt their reasoning they are logically thinking about the mathematical relationships between concepts and adapting their thinking to solve problems. Three Act Math Tasks are popular math problems used in schools in which students engage in adaptive reasoning. These types of problems are beneficial to students because they engage students in inquiry-based learning, a kind of learning where students work to pose questions, interpret data, design ways to solve the problem and present their solutions. Little is known about how students …

Dynamic System Discovery With Recursive Physics-Informed Neural Networks, Jarrod Mau

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis presents a novel method, recursive Physics informed neural network, to learn the right hand side of differential equations. The neural network takes in data, then trains, and then acts as a proxy for the differential equation which can be used for modeling. We show the theoretical superiority of the recursive approach. We also use computer simulations to demonstrate the proved properties.

Teacher Home Visits: Changes In Perceptions Of Key Stakeholders, Kevin R. Thomas

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Teacher home visits have been shown to improve student attendance, academics and to reduce behavior issues. Three groups are involved: the student, the teacher, and the family (or parent). This research focused on determining if and how the teacher home visit changes the perspectives, expectations, and relationships of these three groups. A survey followed by interviews of some of the students, parents, and teachers was used. The surveys and the interviews were evaluated. Results indicated that perceptions and relationships between stakeholders were improved. Due to low participation rates, results must be interpreted with caution. With these considerations in mind, I …

High School Biology Teachers' Integration Of Argumention In The Context Of Disciplinary Literacy Coaching, Ashley Strong

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Scientific argumentation is a core scientific practice. Although scientific argumentation has been linked to increased learning of scientific content, improved reading, writing, and critical thinking, traditional science classrooms have not included scientific argumentation. Teachers often have little experience learning or teaching science through argumentation and need support to integrate this complex practice of science into their classrooms. This study compared four high school biology teachers’ instruction of scientific argumentation as they worked with a literacy coach. Data were collected through interviews, audio recordings of classroom instruction and literacy coaching sessions, and artifacts. After analyzing the data, several key findings stood …

School Resource Officers' Reports Of Training And Perceptions Of High School Students With Disabilities, Kandace T. Jones

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this explanatory sequential, mixed methods research study was to identify the perceptions of school resource officers (SROs) regarding high school students with disabilities and their preparedness to work with this population, as a result of their SRO training. This study involved a national quantitative survey of SROs working in public high schools, followed by one-on-one interviews from the same sample to allow for a deeper analysis of the survey results and develop a theory on how training impacts SRO preparedness and their perceptions of high school students with disabilities. The resulting theory ascertained that the presence of …

Reversing The Gaze: Using Indigenous And Western Worldviews To Compare Coverage Of Climate Change And Indigenous Peoples In The News Media, Gina Mccrackin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The news media acts as an important conduit for shaping societal views of the socio-politics of climate change. While climate change will indeed affect everyone, it will not affect everyone equally. Indigenous peoples are among the populations whose well-being is threatened the most by climate change. International scholarship finds it is not uncommon for Indigenous cultures, communities, and perspectives to be underrepresented and misrepresented in Western climate change media. Research also indicates that fair Indigenous representation occurs when Indigenous peoples are the authors of news articles themselves. We evaluated the differences in discussions of climate change and environmental issues …

Toward A Conceptual Approach To The Coriolis Force: Cataloging Intuitive Knowledge Elements In Intermediate Physics Learners, Jared B. Arnell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In Physics, the topic of the Coriolis force is often confusing and difficult to teach. I conducted a series of interviews with undergraduate physics students to understand how they would use their prior knowledge and personal experiences to interact with and navigate through a new conceptual teaching approach for the Coriolis force. Many students applied their intuitive understanding of balance to interpret and make predictions about the Coriolis force. Some students displayed a strong conviction that rotating objects will naturally get pulled outward, which suggests that this impression may be a useful tool for novice physics learners to use in …

The Personal Is Still Political: An Analysis Of Jessica Valenti's Contemporary Feminine Style, Michala M. Zilkey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In 2016, Jessica Valenti’s memoir, Sex Object, was published. Sex Object describes Valenti’s experiences of sexualization and objectification in a personal and anecdotal format. The feminine style, a rhetorical style that bridges the divide between norms of femininity and expectations of public oration, has been heralded as essential for advancing the feminist movement. This thesis asks the question, to what extent does contemporary feminists’ rhetoric mirror and diverge from earlier iterations of the feminine style? I argue that Valenti’s employs a feminine style that utilizes relational norms and self-disclosure to illustrate the personal as political and the political as …

Siblings Influence On Young Adults' Development: A Three-Study Dissertation, Jenna C. Dayley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

As the longest lasting close relationship, often extending from birth until death, sibling relationships play an important role throughout the life course. To date, however, only limited work has examined the process by which siblings influence each other during young adulthood. Given that developmental differences between older and younger siblings diminish in young adulthood, it is possible that bidirectional (older-to-younger as well as younger-to-older) are more likely as compared to adolescence (in which top-down or older-to-younger influence has primarily been explored). It is further possible that processes of observational learning, including modeling, and sibling differentiation continue into young adulthood, shaping …

Vietnam Continued: The Battle For American Public Memory In Public School History Textbooks, Donnie Owens

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The question of “how do we actively remember the past?” can perhaps best describe the purpose of public memory studies. Acknowledging this question, I analyze popular public-school textbooks to assess the way in which educational literature constructs the public memory of the Vietnam War. In total, the narratives of the texts construct a public memory of Vietnam as a controversial conflict contained within a decade of American uncertainty. However, these narratives also take care to minimize or leave aside the details of Vietnam’s lasting impact and in favor of reaffirming American exceptionalism. Ultimately, this thesis finds that students who read …

Reconstructing The Practical Theory Of Communication In Dating Matters: Examining Teen Dating Violence Prevention From A Communicative Approach, Diana Costanzo

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Teen Dating Violence (TDV) has lasting impacts on teens’ health and well-being. Dating Matters: Strategies to Promote Healthy Teen Relationships (DM), a curriculum published by the CDC in 2019, seeks to mitigate the consequences of TDV and promote healthy relationships. Using Grounded Practical Theory (Craig & Tracy, 1995, 2014), this paper analyzes how DM conceptualizes communication. Specifically, I explore and critique how DM discusses topics related to communication and conflict. The findings of the analysis show that DM focuses on sending the right message in communication. In DM, parents and teens are encouraged to “talk it out” or “speak up” …

Advancing The Cyberinfrastructure For Smart Water Metering And Water Demand Modeling, Nour A. Attallah

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

With rapid growth of urban populations and limited water resources, achieving an appropriate balance between water supply capacity and residential water demand poses a significant challenge to water supplying agencies. With the recent emergence of smart metering technology, where water use can be monitored and recorded at high resolution (e.g., observations of water use every 5 seconds), most existing research has been aimed at providing water managers with detailed information about the water use behavior of their consumers and the performance of water using fixtures. However, replacing existing meters with smart meters is expensive, and effectively using data produced by …

Skeletal Muscle Growth Of Beef Cattle: Cattle Breed Types And Anabolic Implants, Caleb C. Reichhardt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Two potential methods that can be used by the U.S. to help further improve environmental and economic sustainability of the beef industry are through the use anabolic implants, typically composed of the hormones estradiol and trenbolone acetate, and by crossbreeding Bos taurus and Bos indicus cattle. How anabolic implants operate to improve growth, and their resulting relationship with different cattle breed types have yet to be determined. However, crossbreeding these cattle breed types has been found to have a positive influence on economically important traits such as average daily gain and carcass characteristics. Therefore, we hypothesized that the different hormones …

Conservation Conflict: Rare Plant Conservation And Energy Development And Potential In The Colorado Plateau, Joshua Carrell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Colorado Plateau provides numerous sources of energy, particularly natural oil and gas. This energy potential is being actively extracted for consumption on both public and private lands. Elements of biodiversity (e.g., listed and sensitive plant and animal species) are distributed among all land tenures, yet the laws protecting them can vary depending if they occur on public, private, or tribal land. Therefore, it is necessary to understand the geographic ranges of threatened, endangered, and sensitive species and their relationship to land ownership to preserve habitat and conserve species populations. I developed species distribution models (SDMs) to examine the predicted …

The Rio Virgin: A Turbulent River, Mormon Pioneers, And The Creation Of A Landscape 1854-1921, Spencer Wayne Mcconkie

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis explores the changes to the landscape of the Virgin River Basin by Mormon pioneers and the environment between 1854 and 1921. This thesis shows the ways in which the Mormons replaced the local vegetation of the basin with new crops and expanded the area available for farming through the use of irrigation canals and different farming techniques. Along with showing the ways in which the Mormons changed the landscape the thesis explores the ways in which environmental changes played into this process. The process of creating the new landscape of the Virgin River Basin involved both natural and …

Hidden Mechanisms Of Climate Impacts In Western Forests: Integrating Theory And Observation For Climate Adaptation, Sara J. Germain

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Fire, insects, and disease are necessary components of forest ecosystems. Yet, climate change is intensifying these tree stressors and creating new interactions that threaten forest survival. This dissertation combined field observations with statistical predictions of changing disturbances in western forests to identify 1) how conventional models may underestimate future forest loss, and 2) how positive relationships between trees may be exploited by managers to prevent forest loss.

In Chapter II, I tested whether increasingly extreme weather with climate change increases Pacific yew extinction risk. I found that conventional modeling methods underestimated local extinction risk because trees were adapted to a …

Psychosocial Development In Adolescents With Disabilities: Modification And Evaluation Of Measures, Myles Maxey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Adolescents with intellectual and developmental disabilities (IDD) are often overlooked in research, including psychosocial development (self-esteem, autonomy, attachment, and identity formation). Reliable and consistent survey tools are essential to understanding developmental trends. This study focused on creating surveys that could be comprehended by all adolescents, no matter if they experience IDD or not. Findings from this study suggested that there are more similarities than difference across areas of psychosocial development among adolescents with IDD as well as with their typically developing peers. These findings can help researchers more accurately assess psychosocial development for more adolescents, including those experiencing IDD.

Executive Functioning And Brain Activation In Young Monolingual And Bilingual Children: An Fnirs Study, Matthew L. Cook

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Over the past 40 years, the prevalence of bilingualism in the United States has increased. As bilingualism is increasing, it is important to examine potential benefits or drawbacks that early household bilingual exposure has on child development and how bilingualism may facilitate those benefits or drawbacks. This study included 5 monolingual and 6 bilingual children and compared differences in brain activation location and executive functioning skills. Results from this project show a trend of activation differences where the monolingual children had less activation of the middle area of the prefrontal cortex while there was similar activation in both the left …

Natural And Experimental Slow Slip Observed Along Shallow Hematite Faults, Alexandra A. Dimonte

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Fault slip relieves stress in the shallow crust by slipping suddenly during earthquakes, but some faults also slip slowly in between earthquakes. Exhumed faults, brought up to the Earth’s surface from depth, preserve a record of fault processes and slip rates informed by fault rock structures, textures, and chemistry. Hematite, a common iron oxide mineral that precipitates on fault surfaces, exhibits crystal textures that potentially indicate past slip rate. Hematite can be dated using the radioisotopic system of (U-Th)/He thermochronometry, which constrains the time when He is trapped within a crystal, a process that is a function of temperature. Exhumed …

Executive Orders On A Political Timeline: Examination Of Executive Orders In The Supreme Court And Stephen Skowronek's Theory Of Presidential Leadership, Alisha Rachele Urrutia

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The research performed here applies a theoretical model of the presidency by Stephen Skowronek that spans all of American history to the number of executive orders issued per president and the number of these orders argued before the Supreme Court per president. I hypothesized that presidents who have the fewest political resources available to them (disjunctive presidents) would issue the most executive orders, and presidents who transform the face of American government and politics (reconstructionists) would face the most Supreme Court cases dealing with executive orders. I created two datasets for this research and used descriptive statistics to evaluate these …

Lentiviral Vector Production At High Cell Density By Transient Transfection Of Suspended Culture Hek Cells, Jacob G. Accordino

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Viral vectors are gene carriers that efficiently deliver therapeutic gene constructs to target cells. Viral vectors are frequently produced in suspension-growing cells of mammalian origin, referred to as packaging cells. Lentiviral vectors have become widely used as gene vectors since they were initially developed two and a half decades ago, particularly in research settings. The advantages of lentiviral vectors for treating diseases of genetic origin have driven research into their large-scale manufacture for clinical settings. Currently, three main challenges exist that limit mass production of lentiviral vectors. First, plasmid DNA used in the production process is very expensive. Second, high …

Redefining Nba Basketball Positions Through Visualization And Mega-Cluster Analysis, Alexander L. Hedquist

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Basketball players have historically been classified based on one of five positions, namely Point Guards, Shooting Guards, Small Forwards, and Centers. While grouping players into these five categories may provide general descriptions of their perceived role, these standard positions fall short of describing players based on their true abilities and performance. This MS thesis proposes a method to group players of the National Basketball Association (NBA) from the past 20 seasons into more meaningful and specific player positions. We systematically group these players into nine distinct categories, and we draw from a vast array of visualization tools, techniques, and software …

Contributions To Random Forest Variable Importance With Applications In R, Kelvyn K. Bladen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A major focus in statistics is building and improving computational algorithms that can use data to predict a response. Two fundamental camps of research arise from such a goal. The first camp is researching ways to get more accurate predictions. Many sophisticated methods, collectively known as machine learning methods, have been developed for this very purpose. One such method that is widely used across industry and many other areas of investigation is called Random Forests.

The second camp of research is that of improving the interpretability of machine learning methods. This is worthy of attention when analysts desire to optimize …

"To Keep The Church Record And History": The Evolution Of The Church Historian's Office, Cory L. Nimer

Journal of Western Archives

Authors looking at the development of the field of Mormon history have often evaluated it in terms of historiography—as its progression from the domain of amateurs to the output of academics. However, studies of the composition and development of the larger history profession have focused on the discipline's fragmentation and the formation of an "archival divide" between those that write history and those collecting and preserving its sources. This latter approach provides a useful framework for understanding the evolution of the Church Historian's Office of the Church of Jesus Christ of Latter-day Saints, from its origins in 1831 to its …