Digital Commons Network^™

Dynamic Socio-Economic Analysis: The Power Of Persistence From Small Satellites, John Irvine, Richard Wood, Kimberly Slater

Small Satellite Conference

Understanding of economic, social, and cultural characteristics of a society is critical to effective government policy and successful commercial undertakings. Obtaining this information, however, often requires direct observations and interactions with the local populace, entailing significant costs and potentially exposing data collectors to heightened risks. We address this challenge by combining automated processing of satellite imagery with advanced modeling techniques. We have developed methods for inferring measures of well-being, governance, and related socio-cultural attributes from satellite imagery. This research represents a fundamental innovation in the study of human geography by explicitly analyzing the relationship between the observable physical attributes and …

Army Cost Efficient Spaceflight Research Experiments And Demonstrations Attitude Determination Experiment, Mason Nixon, Gauge Day, John Gould, Bobby Holden, Jessica Shrontz, Justin Smith, Evan Swinney, Travis Taylor, Andrew Webb

Small Satellite Conference

Army Cost Efficient Spaceflight Research Experiments and Demonstrations (ACES RED) is an iterative, periodic flight experiment and demonstration effort to test singular phenomenologies, technologies, and concepts for future (S&T) projects that are directly related to and in support of the United States Army Space S&T Roadmap Programs. The first ACES RED experiment, AR#1, has a main focus to generously expand the available dataset to verify long-duration performance as well as mature various commercial-off-the-shelf (COTS) technologies that will reduce the cost and complexity while maintaining performance of Army small satellites. AR#1 has a primary focus on attitude determination and control components. …

A Data-Driven Approach To Cubesat Health Monitoring, Serbinder Singh, John Bellardo, Jordi Puig-Suari

Small Satellite Conference

Spacecraft health monitoring is essential to ensure that a spacecraft is operating properly and has no anomalies that could jeopardize its mission. Many current methods of monitoring system health are difficult to use as the complexity of spacecraft increase, and are in many cases impractical on CubeSat’s which have strict size and resource limitations. To overcome these problems, new data-driven techniques such as Inductive Monitoring System (IMS), use data mining and machine learning on archived system telemetry to create models that characterize nominal system behavior. These characterizations can then be autonomously compared against real-time telemetry on-board the spacecraft to determine …

Unraveling The Interactions Of The Physiological Reductant Flavodoxin With The Different Conformations Of The Fe Protein In The Nitrogenase Cycle, Natasha Pence, Monika Tokmina-Lukaszewska, Zhi-Yong Yang, Rhesa N. Ledbetter, Lance C. Seefeldt, Brian Bothner, John W. Peters

Chemistry and Biochemistry Faculty Publications

Nitrogenase reduces dinitrogen (N2) to ammonia in biological nitrogen fixation. The nitrogenase Fe protein cycle involves a transient association between the reduced, MgATP-bound Fe protein and the MoFe protein and includes electron transfer, ATP hydrolysis, release of Pi, and dissociation of the oxidized, MgADP-bound Fe protein from the MoFe protein. The cycle is completed by reduction of oxidized Fe protein and nucleotide exchange. Recently, a kinetic study of the nitrogenase Fe protein cycle involving the physiological reductant flavodoxin reported a major revision of the rate-limiting step from MoFe protein and Fe protein dissociation to release of Pi. Because the Fe …

A Bipyridine-Ligated Zinc(Ii) Complex With Bridging Flavonolate Ligation: Synthesis, Characterization, And Visible-Light-Induced Co Release Reactivity, Shayne Sorenson, Marina Popova, Atta M. Arif, Lisa M. Berreau

Chemistry and Biochemistry Faculty Publications

Metal-flavonolate compounds are of significant current interest as synthetic models for quercetinase enzymes and as bioactive compounds of importance to human health. Zinc-3-hydroxyflavonolate compounds, including those of quercetin, kampferol, and morin, generally exhibit bidentate coordination to a single ZnII center. The bipyridine-ligated zinc-flavonolate compound reported herein, namely bis(μ-4-oxo-2-phenyl-4H-chromen-3-olato)-κ3O3:O3,O4;κ3O3,O4:O3-bis[(2,2′-bipyridine-κ2N,N′)zinc(II)] bis(perchlorate), {[Zn2(C15H9O3)2(C10H8N2)2](ClO4)2}n, (1), provides an unusual example of bridging 3-hydroxyflavonolate ligation in a dinuclear metal complex. The symmetry-related ZnII centers of (1) exhibit a distorted octahedral geometry, with weak coordination of a perchlorate anion trans to the bridging deprotonated O atom of the flavonolate ligand. Variable-concentration conductivity measurements provide evidence that, when …

Implementing Inexpensive Alternatives To The West’S Largest New Water Project, Utah Rivers Council

All In-stream Flows Material

In 2006, the Utah Rivers Council published our first paper on Bear River Development after completing a comprehensive analysis about the many inexpensive options to provide water for the future of the Wasatch Front. This 2^nd edition summarizes new research conducted by Utah Rivers Council staff, colleagues and that of other agencies, which demonstrates that Bear River Development is completely unnecessary for Utah’s future water needs. Although this is good news to Utah taxpayers, it is bad news for the many special interests that seek to profit from billions of dollars in spending for Bear River Water Development and …

General Catalog 2017-2018, Utah State University

University Catalogs

This catalog contains information on the Academic Departments and Programs as well as Course Descriptions for the above school year at Utah State University. To avoid large file downloads, the Academic Departments and Programs information is located in this file. The Course Description information is located in the secondary file.

2017 Utah State University Student Orientation Guide, Utah State University

The Utah Statesman

A special supplemental magazine provided by The Utah Statesman to take a closer look at some of the services and departments available at Utah State University.

Integrating The Little Talks Intervention Into Early Head Start: An Experimental Examination Of Implementation Supports Involving Fidelity Monitoring And Performance Feedback, Patricia H. Manz, Thomas J. Power, Lori A. Roggman, Rachel A. Eisenberg, Amanda Gernhart, Jacqueline Faison, Tamique Ridgard, Laura E. Wallace, Jamie M. Whitenack

Human Development and Family Studies Faculty Publications

Enriching home visiting services by incorporating scientifically-supported interventions is a means for improving their effectiveness in promoting child development. However, deliberate efforts to ensure that home visitors are fully knowledgeable and supported to implement interventions with parents of young children are necessary. In this experimental study, a randomly-assigned group of Early Head Start home visitors monitored the fidelity of their provision of a scientifically-based intervention, Little Talks, and the program's general child development services. On a bi-weekly basis, home visitors received performance feedback specific to their implementation of Little Talks and based upon the fidelity data. Findings demonstrated that home …

Tremblings, August 2017, Western Aspen Alliance

Tremblings

Uphill Battle to Restore Aspen in the Sierra

John-Pascal Berrill

Being a forest owner and manager, I’m interested in topics important to local forest managers: uneven-aged management and restoration. Maybe I just want the complete opposite of the plantation forestry back home in New Zealand. Moving to California satisfied that, with complex disturbance, social, and policy issues surrounding natural resource management of mixed stands. And with tree species that sucker and sprout – a challenge!

Effects Of Parent Training On Increased Knowledge And Changes In Perceptions Regarding Transition To Adulthood For Middle School Youth With Disabilities, Lauren E. Wright

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Parents of children with severe/moderate disabilities experience uncertainty and a lack of knowledge as their children go through the transition to adulthood. Research has shown parents play a key role in their child's postschool outcome success and that parent training and beginning transition preparation early are key predictors. This study examined the effects of parent training on parents' knowledge, expectations, and action towards their child's transition to adulthood. Participants consisted of parents of middle school youth with severe/moderate disabilities. The study measured parent knowledge, expectations, and actions. Procedures involved (a) a pretest administered to parents on their transition knowledge, (b) …

I Heard But Didn't Hear Analyzing Women's Narrative Devices In Difficult Family Stories, Deanna Allred

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

This thesis analyzed the narrative devices women use when telling difficult or sad stories in familial settings. I documented a story told by my mother, Myrle Hoagland, about the death of her twin brother at age 17. I provided a textual analysis concentrating on the storyteller’s use of silence, additional information, and non-linear structure, to provide meaning and instruction to her family. I also contextually analyzed the story, illuminating the unique way informal learning affected the storyteller’s performance. My analysis demonstrated how I, as an emic ethnographer, documented a familiar story about a death in my family. Upon deeper study, …

Healthcare Sector Stock Returns And The Election Of Donald J. Trump, Cordell Hull

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

The 2016 US Presidential Election was hallmarked by significant policy differences between the Democratic and Republican parties. Healthcare reform was one of the most significant and highly debated issues between the candidates; Hillary Rodham Clinton (D-NY) and Donald J. Trump (R-NY). The Republican platform of repeal and replace was in direct opposition to the expansionary viewpoints of the Democratic Party which was to promote increased regulations on the healthcare and pharmaceutical industries. The media narrative in the months preceding the election assumed a Democratic victory as a sure thing. The New York Times gave Hillary Clinton a 98.5% chance of …

Strength-Based Physiological Profiles Of Ncaa Division I Womens Basketball And Gymnastics Athletes: Implications For Injury Risk Assessment, Curtis Cazier

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

The purpose of this study was to provide a comprehensive strength-based physiological profile of women’s collegiate basketball and gymnastic athletes; and to make sport-specific comparisons for various isokinetic and maximal and rapid isometric strength characteristics of the knee flexor and extensor muscles. A focus on antagonist muscle balance (hamstrings to quadriceps ratios, H:Q) will help elucidate particular vulnerabilities in these at-risk female athletes. Fourteen Division I collegiate level women’s basketball and 13 women’s gymnastics athletes performed isokinetic and isometric strength testing of the knee extensors and flexors. Outcome measures included absolute and body mass normalized (relative) isokinetic and isometric peak …

Resolving Spatial And Temporal Variability In Dissolved Organic Matter Characteristics Within Combined Agricultural And Stormwater Conveyances, Bryce A. Mihalevich

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In many urban areas, stormwater runoff can threaten the ecological health of streams and downstream water bodies. Due to the increased impervious nature of urban landscapes, runoff is more “flashy” and as a result, high concentrations of pollutants can be transported in shorter periods of time than in more natural environments. One pollutant of concern is dissolved organic matter (DOM). DOM is important within aquatic ecosystems, but excess amounts can cause depletion in dissolved oxygen concentrations and can negatively affect aquatic organisms. This study investigated changes in DOM quantity and sources within the Northwest Field Canal (NWFC), an urban water …

Imputation For Random Forests, Joshua Young

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

This project introduces two new methods for imputation of missing data in random forests. The new methods are compared against other frequently used imputation methods, including those used in the randomForest package in R. To test the effectiveness of these methods, missing data are imputed into datasets that contain two missing data mechanisms including missing at random and missing completely at random. After imputation, random forests are run on the data and accuracies for the predictions are obtained. Speed is an important aspect in computing; the speeds for all the tested methods are also compared.

One of the new methods …

Experiences And Perceptions Of Human Vulnerability To Climate Change In Calakmul, Mexico, Lisa Green

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

This report explores how residents of Calakmul, Mexico perceive and experience their own vulnerability to climate change, and how these perceptions and experiences are differentiated among communities, households, and individuals. Fifty-five semi-structured interviews in 2013 and 45 follow-up interviews in 2016 provide data on familiarity with climate change and perceived effects of climate-related stressors on livelihood activities, health, and experiences of hunger. We found that coping responses to the effects of climate change often require cash inputs, and communities are differentiated in their experiences of vulnerability, based in part on their access to wage labor and importantly governmental support.

Fatigue Crack Detection Using Unmanned Aerial Systems In Under-Bridge Inspection, Sattar Dorafshan, Marc Maguire, Nathan V. Hoffer, Calvin Coopmans

Civil and Environmental Engineering Faculty Publications

The applications of Unmanned Aerial Systems (UAS) for bridge inspection, with emphasis on under-bridge inspection and fatigue crack detection, were studied in this report. The potential benefits and challenges of using UAS for bridge inspection were identified through an extensive literature survey. The feasibility of using UAS for fatigue crack detection was studied by determining the minimum lighting, camera distance and environmental requirements for three UAS. The DJI Mavic UAS performed better than the others in both indoor and outdoor GPS-denied inspections. An in-service bridge in Ashton, Idaho was inspected using this UAS to find fatigue cracks. No fatigue crack, …

Evaluating Utah 4-H Stem Curricula Used To Promote Stem In Utah 4-H Programs, Michelle D. Simmons

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Utah 4-H strives to ensure that youth receive the best that positive youth developmental programming has to offer in an endeavor to provide 4-H youth with the knowledge and skills that will given them an advantage in the workforce. The purpose of this study was to determine if Utah's Discover 4-H STEM curricula that is being used to promote STEM in Utah 4-H program met the outcomes of the National 4-H STEM logic model.

Incidental Vocabulary Acquisition In Middle School: An Examination Of Three Instructional Conditions, David B. Lee

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The importance of vocabulary knowledge gained through incidental learning is well documented. The growth of incidental vocabulary knowledge is especially crucial for middle school students due to the complex words encountered in their studies. However, research on incidental vocabulary acquisition for middle school students is lacking. The purpose of this study was to compare the relative effectiveness of three instructional conditions (reading, writing, and reading and writing) on incidental vocabulary acquisition and retention with middle school students in an English as a first language (L1) environment.

In this within subjects repeated measure study, 263 eighth-grade participants received treatment in three …

A Comparison Of Five Statistical Methods For Predicting Stream Temperature Across Stream Networks, Maike F. Holthuijzen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The health of freshwater aquatic systems, particularly stream networks, is mainly influenced by water temperature, which controls biological processes and influences species distributions and aquatic biodiversity. Thermal regimes of rivers are likely to change in the future, due to climate change and other anthropogenic impacts, and our ability to predict stream temperatures will be critical in understanding distribution shifts of aquatic biota. Spatial statistical network models take into account spatial relationships but have drawbacks, including high computation times and data pre-processing requirements. Machine learning techniques and generalized additive models (GAM) are promising alternatives to the SSN model. Two machine learning …

Natural And Anthropogenic Effects On Life History Characteristics In The Side-Blotched Lizard (Uta Stansburiana), Geoffrey David Stuart Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Survival is a prerequisite for successful reproduction, and is thus intertwined with fitness. Some physiological systems can improve survival, like the immune system, but compete with other processes for resources. Because animals evolved with resource limitation, it is important to understand how these resource-allocation decisions are made. To meet this end, I performed four investigations addressing how life-history characteristics shift in side-blotched lizards (Uta stansburiana) using laboratory studies and multi-year field sampling. First, I measured metabolic rates in response to different immune challenges and different energy states in male lizards. I found that, surprisingly, cutaneous biopsies were associated …

Siblings Of Adults With Intellectual Disabilities: Their Perspectives On Guardianship And Its Alternatives, Anna M. Brady

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Adult siblings of people with intellectual and developmental disabilities (IDD) are often on the front lines of supporting their brothers and sisters with IDD through caregiving and guardianship roles after their parents pass away. However, these siblings are often uninformed or under informed about ways that they can support their brothers and sisters. This study had the following three purposes: to determine what adult siblings of adults with IDD know about guardianship and its alternatives; to explore how adult siblings view guardianship and its alternatives; and to explore what adult siblings think about their role of being a guardian or …

Bridging Post-Wildfire Communication Gaps Between Managers, Researchers, And Local Communities, Including A Biological Soil Crust Case Study, Hilary Louise Whitcomb

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Immediately after a wildfire land managers act quickly to protect water supplies, soil stability, habitat, and forage. We don't currently understand how managers make trade-off decisions between social, political, and ecological factors in these tight timelines or if they are able to use new science. We do know ecosystems often benefit from local engagement, and new, scientifically-grounded methods that improve restoration efforts are needed. As post-wildfire timelines don’t often allow for outside input, I asked managers what they and stakeholders think about post-wildfire projects and what managers think about new science. I asked local citizens what they think about postwildfire …

Seasonal Development Of The Biological Control Agent Of Dalmatian Toadflax, Mecinus Janthiniformis (Curculionidae: Coleoptera), In Utah: Phenology, Overwintering Success, And Mortality, Samantha A. Willden

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

By outcompeting desirable vegetation, invasive weeds can dominate field crops and rangelands, drastically reducing yield and land value. One option in controlling the impact and spread of such weeds is reuniting them with their natural insect herbivores, a process called biological control. When successful, biocontrol can be the cheapest way to provide long-term control of invasive weeds, but continual monitoring of insect and weed activity is required to ensure success.

Dalmatian toadflax is an invasive weed that occurs widely throughout the northwestern U.S., and that is spreading south each year to warmer and drier regions, including sites in Utah. Although …

The Role Of Utah Farmers In Farm To School Programming, John L. Hawley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This purpose of this study was to describe Utah farmers’ role in farm to school (FTS) programming and their interest in institutional marketing of local foods. The researcher sent a survey to farmers belonging to the Utah Farm Bureau to discover the role they play in FTS in Utah.

Respondents held positive attitudes toward FTS programming and agreed that building relationships with community members and increasing awareness of local food were benefits. They cited a lack of information about schools seeking to purchase local products and restriction of growing seasons as barriers to their participation in FTS. They displayed their …

The Same Ten People (Stps) Of Rockville: Volunteerism, Preservation, And Sense Of Community In Small-Town Southern Utah, Tori Edwards

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis examines the central role that volunteerism plays in creating a strong sense of sense of place and community within the town of Rockville, Utah, located 4.7 miles from Zion National Park. Rockville has no commercial businesses within its boundaries and relies heavily upon the volunteer efforts of its residents to carry out the majority of civil services within the town. Drawing from interviews of the STP’s (a group of Rockville residents who volunteer on a regular basis), this thesis highlights how the act of volunteerism helps residents feel membership within their community. This thesis also looks at how …

Maternal Diabetes, Related Biomarkers And Genes, And Risk Of Orofacial Clefts, Tiwaporn Maneerattanasuporn

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Orofacial clefts (OFCs) are among the most common congenital birth defects and are characterized by incomplete development of the lip or the palate or both. The lip and palate develop separately at different times during the first trimester of pregnancy. The etiology of OFCs is multifactorial and includes a combination of genetic and environmental factors. This project aims to examine role of maternal diabetes mellitus in orofacial clefts through studies of medical histories, biomarkers, and genes.

In a study of Utah birth certificates, mothers with pre-existing diabetes and gestational diabetes mellitus (GDM) had an increased risk of OFCs, and obese …

Comparison Of Chikungunya Virus Strains In Disease Severity And Susceptibility To T-705 (Favipiravir), In Vitro And In Vivo, Makda Gebre

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Chikungunya is a mosquito-transmitted disease caused by Chikungunya virus (CHIKV). Symptoms of Chikungunya include debilitating joint pain and swelling, fever and rash. CHIKV was first discovered in 1953 in Tanzania, and has since caused periodic outbreaks of disease. The virus reemerged recently in 2004 and has since spread around the world affecting more than 3 million people. The different strains of CHIKV have been grouped into three phylogenetic clades: West African, Asian and East/Central/South African (ECSA). There are no FDA approved medicines or vaccines used to treat or prevent CHIKV infection. The antiviral drug, T-705 (commercially known as Favipiravir), has …

Business Development And Entrepreneurship On The Navajo Reservation, Sierra Hoffer

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

In this paper, I explore the underdevelopment of the business sector on the Navajo reservation. I investigate why the Navajo reservation continues to be economically depressed and find that institutions unique to the reservation create barriers that disincentivize formal business development. I first conducted a literature review on general barriers to entrepreneurship. Second, I reviewed the institutional analysis of the Navajo reservation to understand how institutions affect potential entrepreneurs. Next, I summarized a three-phased entrepreneurship training program on the reservation. Finally, I assessed the results of the program and how it was effected by barriers to business development.

I conclude …