Digital Commons Network^™

On Trusting Third-Party Satellite Data, Sean Crosby, Kurt Brenning

Small Satellite Conference

Increased access to space has opened the door to many satellite vendors. These vendors are collecting data using a variety of sensors, including electro-optical, radio frequency, and synthetic aperture radar. Customers want true-sourced, authentic data. However, as with any lower barrier to entry, the risk of counterfeit, tampered, or low-quality products increases. In this work, we describe the key requirements for trusting imagery and present a hardware design and a system of controls that meet those requirements of trust for Earth imaging satellites. Our trusted hardware provides assurance of capture time, location, and preserves the content and origin by capturing …

Tweeting From The Moon, Nelly Phillips Offord, Sophie Bywater, Alex Da Silva Curiel, Jonathan Friend, Charles Cranstoun, Ben Schwarz, Martin Sweeting

Small Satellite Conference

Lunar Communications Pathfinder is planned to enable small and large satellites and landers to carry out data intensive missions around the moon, without the need for complex and costly on-board communication equipment and access to global ground networks.

From the middle of this decade there are expected to be 5 to 15 active space missions on or around the moon, generating several GBytes of data per day. Lunar Communications Pathfinder is a commercial initiative with ESA and NASA as anchor tenants. The 300kg class small spacecraft is currently in manufacture for launch in 2025, and is aimed at alleviating pressure …

Spectral Ocean Color (Spoc): Lessons Learned From The University Of Georgia Small Satellite Research Laboratory's First Satellite, Sydney Whilden, Deepak Mishra, David L. Cotten, Nicholas Neel

Small Satellite Conference

In October 2020, the University of Georgia Small Satellite Research Laboratory launched its first CubeSat, a 3U Earth-observation mission designed to collect multispectral data from Georgia’s coastal environments for UGA’s Center for Geospatial Research to make recommendations on environmental conservation, care, and use. SPOC successfully detumbled, but after approximately a month in orbit, a coronal mass ejection (we speculate) caused us to lose contact. Despite our disappointment at the loss of SPOC, we are leveraging the lessons learned for our upcoming missions. These lessons can be categorized in four principal areas: software (flight and payload), mission operations, testing, and educational …

Data Validation Of The Nasa Time-Resolved Observations Of Precipitation Structure And Storm Intensity With A Constellation Of Smallsats (Tropics) Pathfinder Microwave Radiometer, Amelia Gagnon, Samantha Hasler, Juliana Chew, William Blackwell, Vince Leslie, Kerri Cahoy

Small Satellite Conference

Launched in June 2021, the TROPICS Pathfinder CubeSat has a microwave radiometer payload sensitive to the frequencies for observing precipitation, humidity, temperature, and cloud ice. The observed brightness temperatures must be compared to a data set of ‘known’ quality to validate the measured data across all channels of the microwave radiometer. This research explores validating TROPICS Pathfinder data against reanalysis data to determine the quality of the provisional TROPICS Pathfinder data product, with an eye for the future of comparing against other microwave radiometer measurements. Validation involves comparing Pathfinder data to ERA5 reanalysis data by using the Community Radiative Transfer …

Heavy Metal Levels And Sources In Suspended Particulate Matters Of The Glacier Watersheds In Northeast Tibetan Plateau, Rui Wu, Zhiwen Dong, Xiping Cheng, Janice Brahney, Xiaoyu Jiao, Lihua Wu

Watershed Sciences Faculty Publications

This study collected summer meltwater runoff samples from several glacier watersheds of the northeast Tibetan Plateau during June-July 2017, and measured the concentrations of 17 trace elements (Li, Be, Sc, V, Cr, Co, Ni, Cu, Zn, Ga, Rb, Mo, Cd, In, Sb, Cs, Ba) in meltwater suspended particulate matter (SPM), in order to reveal the elemental concentration, spatial distribution, and water quality in remote glacier watershed under regional anthropogenic activities. Results showed that, the concentration of heavy metal elements was relatively high in Yuzhufeng Glacier basin, ranging from 0.57 μg/L (In) to 1,551.6 μg/L (Ba), whereas in Qiyi Glacier basin …

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 …

Medicaid Expansion: Changes In Individual Health Outcomes, Julie Norman

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

The Affordable Care Act is one of the biggest changes in the American healthcare system in the 21st century. One element of the ACA is medicaid expansion, which opened up federal funding for states to cover any individual earning below 138% of the federal poverty line. 21 states expanded medicaid in 2014 while 12 haven’t expanded. This paper utilizes the disparity for a natural experiment to determine the efficacy of the program. Outcome variables of interest include measurements of individual health, health access and utilization, and premature death rates. The results indicate positive, but small improvements due to the policy, …

Do Rational Agents Steal, Randy Hill

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Do Rational Agents Steal?

Modern economists from Adam Smith to the present have broadly assumed that rational agents respect property rights. This respect for property rights has been a feature of nearly all economic models from the beginning. This paper examines a simple two person, production and trade model where the agents are allowed to choose to steal. Even within this simple model, there are a broad range of parameters that affect the agents' choices. In most parameter sets, the agents choose to steal as the reward for conflict outweighs the opportunity cost of not engaging in conflict. The parameter …

Teaching Multicultural Psychology As A Cultural Competence Intervention: An Empirical Evaluation Of Course Components, Elizabeth Tish Hicks

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Previous research has shown that a semester-long multicultural psychology course can effectively increase students’ cultural competence-related attitudes when students complete the class in-person and online. Cultural competence refers to the knowledge, awareness, and skills required to appreciate, recognize, and effectively work with members of other cultural groups. This dissertation examined several components of a multicultural psychology course: ethical grading, skill development, and intergroup contact. The first paper discussed techniques used to minimize grading bias and examined whether cultural competence shifts impacted grading. Students’ cultural competence scores did not relate to or predict their grades in the course, which supported the …

Ai: Capturing Core Processes In The Us-China Hegemonic Cycle, Connor Murphy

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

World systems analysis is a historically based framework that makes looking at the world easier with trends and patterns. Using this framework and the concepts inside of it, the reader will be able to see the potential that artificial intelligence has in regard to the social, political and economic changes that will come about in the United States and China from the adoption of this technology.

Sustain Water Conservation Behaviors Using Nonparametric Ranking And Social Marketing, Mahmudur Rahman Aveek

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Circulation of water use feedback and conservation messaging are strategies implemented to reduce water demand on a short-term (seasonal) basis. Often considered a less impactful strategy than other tactics such as price increments and usage restrictions, authorities mostly use feedback in informational campaigns with a focus to apprise users about their water use. Such conservation programs have had limited success that has been attributed to the fact that the information provided with the feedback campaigns was generic and did not motivate users enough to sustain their water-saving behaviors. However, the advent of disaggregation technologies that can provide appliance-wise water use …

An Evaluation Of Landscape, Climate, And Management Impacts On Bumble Bees (Hymenoptera: Apidae: Bombus) In Agroecosystems, Morgan Elizabeth Christman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Bumble bees play pivotal roles in pollinating wild and cultivated plant communities. Unfortunately, bumble bee populations are declining due to disturbances such as landscape conversion and climate change. Additionally, traps used to monitor pest insect populations often capture bumble bees, leading to a concern that trap captures increase bumble bee mortality. First, I studied bumble bee communities based on land cover and weather variables in agricultural fields in Utah. Bumble bee communities were more diverse in agricultural fields with more agricultural land in the surrounding area, low temperatures, and high humidity during the growing season, and less diverse in fields …

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 …

The Effect Of Congressional Committee Assignments On National Park Annual Operating Budget Appropriations, Braden T. Morrill

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Yearly funding for individual national parks is overseen and determined by the House Appropriations and Natural Resources Committees. This process has resulted in the National Park Service being underfunded and facing a $12 billion maintenance backlog. Congress has passed temporary funding to help reduce this backlog but has not indicated a shift in how funding decisions are made to prevent future shortfalls.

This thesis uses statistical analysis to explore how individual members of Congress are impacting funding for national Parks in their states or districts. Often congressional committee’s act on personal incentives to make funding decisions rather than basing their …

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 …

Examining The Effectiveness Of Explicit, Systematic Mathematics Vocabulary Instruction For Students With Learning Difficulties And Disabilities In A Specialized Setting, Kristen R. Rolf

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Many students in the United States are not proficient in mathematics. Mathematics vocabulary is one area that may impact students’ understanding of and engagement with mathematics. This dissertation investigated the implementation, effectiveness, and teacher’s perceptions of a program for teaching mathematics vocabulary necessary for fourth grade and beyond.

This study randomly assigned 30 students (11-14 years old) to receive mathematics vocabulary instruction or not. Three teachers at a school for students with learning difficulties and disabilities administered mathematics vocabulary and mathematics achievement tests to all of their students before teaching the program to 17 of the students. A research assistant …

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 …

The Working Man's Rendezvous, Tameron Gentry Raines Williams

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The mountain men—fur traders of the Rocky Mountain trade between 1822-1840—are prominent in the history of the American West. Their adventures and exploits have been told and retold as their legend grew as did the myth surrounding their lives. This thesis seeks to dismantle that myth through focused study on the conditions of fur trapping work, the interactions between mountain men and Indigenous tribes of the region, and the role of lesser-known Black fur trappers.

Conservation Genetics Of A Declining Bumble Bee In Western North America; The Influence Of Geography, Dispersal Limitation, And Anthopogenic Activity, Ashley T. Rohde

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Conservation biology addresses the problem of species loss by identifying species in need of protection. Conservation biology has subfields to address different aspects of biodiversity loss, including genetics and sociology. I used genetic approaches to assess the conservation status of western bumble bees, a bumble bee species of conservation concern.

The western bumble bee is a bumble bee species that ranges from Alaska to New Mexico and as far east as Wyoming and Colorado. This species is disappearing in some places. It may soon be listed as endangered in the United States and is already listed as endangered in parts …

Development Of Late-Heading Orchardgrass Germplasm, Megan Marie Getz

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Dactylis glomerata L., orchardgrass, is commonly grown with perennial forages such as alfalfa (Medicago sativa L.). However, commercial orchardgrass cultivars currently grown in the Intermountain West generally flower earlier than alfalfa. This results in a reduction in grass nutritional value if harvested to maximize the alfalfa yield, because the two species mature at different rates. Thus, there is a need to better understand the genetic basis of flowering time in orchardgrass and develop late-flowering populations. The objectives of this research were to evaluate the ability to identify and use molecular markers to identify and select late-heading orchardgrass; and to …

Coping With Environmental Constraints: Geographically Divergent Adaptive Evolution And Germination Plasticity In The Transcontinental Populus Tremuloides, Roos Goessen, Nathalie Isabel, Christian Wehenkel, Nathalie Pavy, Lisa Tischenko, Lyne Touchette, Isabelle Giguère, Marie-Claude Gros-Louis, Jérôme Laroche, Brian Boyle, Raju Soolanayakanahally, Karen E. Mock, Javier Hernández-Velasco, Sergio Leonel Simental-Rodriguez, Jean Bousquet, Ilga M. Porth

Aspen Bibliography

Societal Impact Statement

Syntheses clearly show that global warming is affecting ecosystems and biodiversity around the world. New methods and measures are needed to predict the climate resilience of plant species critical to ecosystem stability, to improve ecological management and to support habitat restoration and human well-being. Widespread keystone species such as aspen are important targets in the study of resilience to future climate conditions because they play a crucial role in maintaining various ecosystem functions and may contain genetic material with untapped adaptive potential. Here, we present a new framework in support of climate-resilient revegetation based on comprehensively understood …

The Status Of Utah Hispanic Or Latina Women, Jessica C. Hill, Marin Christensen, Susan R. Madsen

Marketing and Strategy Faculty Publications

In 2021, the Kem C. Gardner Policy Institute published a databook on race, ethnicity, and sex, and since that time related dialogues have become more common. According to these data, Utah is becoming increasingly diverse, which has brought wide disparities between most minority groups and the White population in terms of education, housing, and health outcomes.¹ To continue this important conversation, the Utah Women & Leadership Project (UWLP) is expanding and deepening this research by publishing a series of research snapshots on Utah women of color. Often, research entities publish data on gender and race separately, leaving a gap …

An Inventory And Assessment Of Sample Sources For Survey Research With Agricultural Producers In The U.S., Jessica D. Ulrich-Schad, Shuang Li, J. G. Arbuckle, Edem Avemegah, Kathryn J. Brasier, Morey Burnham, Anil Kumar Chaudhary, Weston M. Eaton, Wei Gu, Tonya Haigh, Douglas Jackson-Smith, Alexander L. Metcalf, Amit Pradhananga, Linda S. Prokopy, Matthew Sanderson, Emma Wade, Adam Wilke

Sociology and Anthropology Faculty Publications

Researchers need probability samples to collect representative survey data about the behaviors and attitudes of agricultural producers they study in relation to the natural resources that they manage, yet obtaining accurate and complete sampling frames is challenging. We extract data from a publication database to identify the most commonly used sampling frame sources in survey research of agricultural producers in the U.S., finding that government program participant lists are used most often, while private vendor samples are increasingly being purchased. Based on our research experience, we find that for many projects, private vendors can provide the most rigorous samples. Given …

Gardens, Religion And Clerical By-Employments: The Dual Careers Of Hugh Hall, Priest-Gardener Of The West Midlands, Susan M. Cogan

History Faculty Publications

Hugh Hall was a highly sought-after gardener in late sixteenth century England. He worked in the Midlands, specifically in Worcestershire, Warwickshire, and Northamptonshire, and mostly for Catholic families. Hall was a Catholic priest who resigned his parish living after the Elizabethan Religious Settlement, but continued to perform clerical duties such as saying Mass and hearing confession alongside his second vocation as a gardener. Indeed, his esteem as a gardener and, later, surveyor of works was strong enough that he attracted Protestant clients like Lord Burghley and Sir Christopher Hatton despite his adherence to Catholicism. Hall's two vocations shaped his identity: …

The Status Of Utah Black Women, Tasha Toy, Marin Christensen, Susan R. Madsen

Marketing and Strategy Faculty Publications

Utah is becoming increasingly diverse, and this has brought wide disparities between most minority groups and the White population in terms of education, housing, and health outcomes.¹ Last year, the Kem C. Gardner Policy Institute at the University of Utah released a report on race, ethnicity, and sex that started the conversation more broadly, and now the Utah Women & Leadership Project (UWLP) is expanding and deepening this discussion by focusing a series of research snapshots on Utah women of color. As the UWLP focuses on strengthening the impact of all Utah girls and women, research that increases our …

Effective Conservation Of Desert Riverscapes Requires Protection And Rehabilitation Of In-Stream Flows With Rehabilitation Approaches Tailored To Water Availability, Casey A. Pennock, Phaedra Budy, William W. Macfarlane

Watershed Sciences Faculty Publications

Desert riverscape rehabilitation practitioners must contend with compounding effects of increasing human water demand, persistent drought, non-native species establishment, and climate change, which further stress desert riverine ecosystems such as rivers in the Colorado River basin, United States. Herein, we provide our perspective on the importance of natural flows, large floods in particular, for successful conservation and rehabilitation of riverscapes. We present ideas developed from our experience with rehabilitation projects across multiple desert tributary rivers with varying levels of habitat degradation and water abstraction. We propose spatially extensive measures such as protection of in-stream flows, tailoring rehabilitation efforts to available …

Utah State University Commencement, 2022 - Main Campus, Utah State University

Commencement Programs

2022 Commencement Ceremony for the Main Campus of Utah State University.

The Status Of Utah Asian Women, Jessica C. Hill, Marin Christensen, Susan R. Madsen

Marketing and Strategy Faculty Publications

Last year, the Kem C. Gardner Policy Institute released a landmark databook on race, ethnicity, and sex. In that report they noted that Utah is becoming increasingly diverse, and this has brought wide disparities between most minority groups and the White population in terms of education, housing, and health outcomes.¹ Although the Institute presented critical data to start the conversation more broadly, the Utah Women & Leadership Project (UWLP) wanted to expand and deepen this discussion by focusing a series of research snapshots on Utah women of color. As the UWLP focuses on strengthening the impact of all Utah …

Utah Farmers Market Snap Toolkit, Regan Emmons, Bridget Stuchly, Gina Cornia

All Current Publications

Utah State University Extension provides research-based programs and resources with the goal of improving the lives of individuals, families and communities throughout Utah. USU Extension manages Create Better Health, Utah’s Supplemental Nutrition Assistance Education Program (known as SNAP-Ed), and provides nutrition education and obesity prevention services to SNAP recipients and other eligible low-income individuals. Create Better Health (SNAP-Ed) offers a variety of classes to expand participants’ knowledge of nutrition, budgeting, cooking, food safety, and physical activity. This toolkit outlines how farmers markets can implement a SNAP program and help combat food insecurity in their communities.

Visions Of Science: An Art Historical Exploration Of Medieval Scientific Manuscripts, Olivia Brock

Undergraduate Honors Capstone Projects

The late 16th century saw a new movement in the world of science to push scientific ideas and practice out of academia and into the hands of the layman. No longer were scholars the sole proprietors of science –everyday laborers, craftsman, and artists now had practical scientific principles at their fingertips that they could incorporate into their professions. This new spread of science was facilitated in several ways, including the publication of books incorporating detailed, explanatory images, new utilitarian instruments, and public lectures. Though science was disseminated through a variety of means, I have been particularly interested in the ways …