Digital Commons Network^™

The Effect Of Lactation And Energy Status On Gene Expression In The Main Reproductive Tissues Of Lactating Dairy Cattle, Sameer M. Alhojaily

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Modern high-yielding dairy cows are currently producing far more milk than their ancestors due to a prolonged and intensive genetic selection for milk production trait accompanied by the revolutionary improvement in technology, management, and nutrition. On the other hand, a noticeable decline in fertility and reproductive performance was undeniably consistent with the increase in milk yield. This decline in fertility and reproductive performance are recognized worldwide and well documented in several studies. Dairy cows typically experience a period of energy deficit during the first few months of lactation due to the rapid increase in milk production and limited feed intake. …

Spectral, Energy And Computation Efficiency In Future 5g Wireless Networks, Haijian Sun

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Wireless technology has revolutionized the way people communicate. From first generation, or 1G, in the 1980s to current, largely deployed 4G in the 2010s, we have witnessed not only a technological leap, but also the reformation of associated applications. It is expected that 5G will become commercially available in 2020. 5G is driven by ever-increasing demands for high mobile traffic, low transmission delay, and massive numbers of connected devices. Today, with the popularity of smart phones, intelligent appliances, autonomous cars, and tablets, communication demands are higher than ever, especially when it comes to low-cost and easy-access solutions.

Existing communication architecture …

Computational And Experimental Studies On Energy Storage Materials And Electrocatalysts, Jared B. Moss

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

With the growing global population comes the ever-increasing consumption of energy in powering cities, electric vehicles, and portable devices such as cell-phones. While the power grid is used to distribute energy to consumers, the energy sources needed to power the grid itself are unsustainable and inefficient. The primary energy sources powering the grid, being fossil fuels, natural gas, and nuclear, are unsustainable as the economically-accessible reserves are continually depleted in exchange for detrimental emissions and air-pollutants. Cleaner, renewable sources, such as solar, wind, and hydroelectric, are intermittent and unreliable during the peak hours of energy usage, that is dawn and …

Examining The Effects Of Familism On The Association Between Parent-Adolescent Conflict, Emotion Regulation, And Internalizing Problems Among Latinx Adolescents, Kenia Carrera

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Latinx adolescents report higher levels of anxiety and depression symptoms (i.e., internalizing symptoms) compared to other ethnic groups. Research studies primarily conducted with European American youth have concluded that difficulties in emotion regulation and parent-adolescent conflict are associated with an increased risk for youth internalizing symptoms. Additionally, an important Latinx cultural value, familism, has been identified as a protective factor for internalizing symptoms for Latinx adolescents. Therefore, the current study examined how familism, parent-adolescent conflict, and difficulties in emotion regulation interact to influence the development of internalizing symptoms among Latinx adolescents. It was hypothesized that (a) parent-adolescent conflict and difficulties …

Optimization Of Biogas Production By Use Of A Microbially Enhanced Inoculum, Anna Doloman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A renewable energy source, biogas, comprises of methane (80%) and carbon dioxide (15%), and is a great alternative to the conventional fossil-based fuels, such as coal, gas and oil. Biogas is created during anaerobic biological digestion of waste materials, such as landfill material, animal manure, wastewater, algal biomass, industrial organic waste etc. A biogas potential from organic waste in the United States is estimated at about 9 million tons per year and technology allows capture of greenhouse gases, such as methane and carbon dioxide, into a form of a fuel. In the light of global climate change and efforts to …

Physiological, Behavioral, And Self-Report Outcomes Of Acceptance And Regulation Approaches To Exposures For Intrusive Thoughts, Brooke M. Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Cognitive-behavioral therapy that includes exposure, or intentionally and systematically confronting feared situations, is the gold standard psychological treatment for obsessive-compulsive disorder. However, less than half of those who begin this treatment are considered to have recovered from their disorder at the end of treatment, and this number is even smaller in the months following the end of treatment. Leading theories regarding how treatment changes occur focus on reducing fear, and they do not include “voluntary” (i.e., operant) behaviors, such as avoidance, that are key features of the disorder. Acceptance-based approaches to exposure do not focus on fear reduction, but directly …

Understanding Taiwan Presidential Election: A Review Paper, Shida Zhong

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

This paper seeks to find a systematic understanding of the presidential election in Taiwan. Based on the Taiwanese national identity issue as the main social cleavage, I try to review the literature about Taiwan’s presidential election and find the factors that influence the result of presidential election. I try to sort the factors into three dimensions: issue voting, valence voting and social context. Meanwhile, this paper also contains a brief introduction of democratization in Taiwan as a history background and a short review on the past Taiwan presidential election. The purpose of paper is to shine a light on the …

The Red Front Door, A Memoir, Camila B. Sanabria

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This is a creative thesis that contains two components: 1) a critical introduction that defends the representation of mixed-status families and deportation narratives, and 2) a memoir that depicts my experience with deportation and as a member of a mixed-status family. The second component of this thesis will consist of the first four chapters of my memoir, with the remaining chapters to be completed post-graduation. These chapters take place the years before my parents’ deportation and the year immediately after. The memoir is a coming-of-age story that explores my ethnic identity, along with themes such as insider versus outsider. This …

Constellation Planning Methods For Sequential Spacecraft Rendezvous Using Multi-Agent Scheduling, Skylar A. Cox, Nathan B. Stastny, Greg Droge, David K. Geller

Space Dynamics Laboratory Publications

This paper addresses the RPO constellation assignment problem by developing a responsive utility function for tasking a constellation of LEO satellites to several spacecraft servicing tasks. The paper develops the utility function that considers both value of servicing RSO spacecraft in conjunction with the associated ΔV cost. A highly-capable and operationally-relevant task allocation method, called the consensus-based bundle algorithm (CBBA), is leveraged for distributed processing and task allocation. This paper demonstrates that this methodology provides a robust technique for RPO constellation management.

Investigation Of Graphene Interconnections For Multifunctional Reconfigurable Antenna Beam Steering, Joshua R. Perkins

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In high frequency, high-performance wireless communications, direct line of sight antennas are common. The issue with the line of sight antennas is the need to redirect the physical antenna to achieve the best possible reception. Classical redirections are done by mechanical movements: hand tuning and motors. Our multi-functional re-configurable antenna (MRA) concept allows for electrical and non-mechanical antenna reorientation. This work investigates two important concepts in the development and enhancement of future MRA devices: special, non-interfering, control signal circuitry and nano-sized switching devices that are controlled by the special circuitry. The investigation was conducted with the use of commercially available …

"There Should Be No Tolerance For Intolerance": Internal Antagonism In Online Fan Communities, Michelle W. Jones

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This thesis focuses on exploring cases of internal antagonism in fan communities, with a specific focus on the Steven Universe (2013 -) and Undertale (2015) communities present on Tumblr and Twitter. Internal antagonism is a phenomenon that occurs when a community targets a member within itself instead of outside itself, often as a way to mediate and regulate the community and reinforce its values. This thesis considers three case studies of internal antagonism with both physical and digital implications in order to better understand the role it plays in shaping and sustaining online fan communities as well as mediating the …

Discovery And Engineering Of An Endophytic Pseudomonas Strain From Taxus Chinensis For Efficient Production Of Zeaxanthin Diglucoside, Ozkan Fidan, Jixun Zhan

Biological Engineering Faculty Publications

Background

Endophytic microorganisms are a rich source of bioactive natural products. They are considered as promising biofertilizers and biocontrol agents due to their growth-promoting interactions with the host plants and their bioactive secondary metabolites that can help manage plant pathogens. Identification of new endophytes may lead to the discovery of novel molecules or provide new strains for production of valuable compounds.

Results

In this study, we isolated an endophytic bacterium from the leaves of Taxus chinensis, which was identified as Pseudomonas sp. 102515 based on the 16S rRNA gene sequence and physiological characteristics. Analysis of its secondary metabolites revealed …

Barriers, Roles, And Information Source Preferences For Utilizing Agricultural Science Projects Among Utah 4-H Extension Professionals, Aleigh Aurin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Agriscience is the growing study of biotechnology, business, and economics within the agriculture industry. Through 4-H, youth can experience hands on learning through different program areas. The purpose of this study was to identify the barriers, roles, and how Utah 4-H personnel preferred to learn about new programs. The study showed time and available volunteers were a barrier for 4-H Extension personnel to implement Agriscience projects. Other results included internet and workshops as the top choices for training programs. The Extension personnel agreed it was their job to involve and educate youth. Yet, need training in how to integrate Robotics; …

Social Media Use During Crisis Events: A Mixed-Method Analysis Of Information Sources And Their Trustworthiness, Apoorva Chauhan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This dissertation consists of three studies that examine online communications during crisis events. The first study identified and examined the information sources that provided official information online during the 2014 Carlton Complex Wildfire. Specifically, after the wildfire, a set of webpages and social media accounts were discovered that were named after the wildfire—called Crisis Named Resources (or CNRs). CNRs shared the highest percentage of wildfire-relevant information. Because CNRs are named after a crisis event, they are easier to find and appear to be dedicated and/or official sources around an event. They can, however, be created and deleted in a short …

Women In Agriculture: Living In A "Man's World", Ennea A. Fairchild

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Despite women’s involvement in agriculture, their contributions have been overlooked in society. Women make up at least a third of those involved in agriculture as farmers, landowners, and in agricultural faculty positions. These numbers do not appear to be decreasing. Although there are several agricultural roles, this study focuses primarily on those women who own agricultural land, but do not farm the land themselves. Rather, these women rent it out to a farmer who operates the land for them (women nonoperating landowners or WNOLs, in short). Previous research suggests these women may be facing considerable barriers as an agricultural landowner …

Teaching Issues Of Identity Through Multicultural Young Adult Literature, Emily M. Withers

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

Despite changing demographics of high school classrooms, teaching practices and literature remain similar to decades-old practices focusing more on literary devices and symbolism than on topics relevant to the students. Many teachers don’t have the time to find new novels. And when they do find the texts, they are often at a loss for how to properly teach the novels. This thesis is a three-part paper advocating for teaching identity to high school students using a blend of classic literature and contemporary multicultural young adult literature. The first section focuses on personal experiences and research illustrating the need for more …

Piloting A Cooking Demonstration Curriculum For Dietetics Students, Jill Henderson

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

Cooking demonstrations are a unique and effective way to teach nutritional concepts and basic cooking skills in a community setting. They have been found to be beneficial for participants in attendance as they improve confidence in the kitchen, cooking skills development, and the promotion of healthier foods into the diet. Classroom learning facilitates critical thinking but does not necessarily provide a platform for hands-on learning. In planning and executing community-involved cooking demonstrations, students are able to connect content learned in the classroom to professional practice. Over the last decade the field of dietetics has involved more community-based programs designed to …

Investigation Of The Biosynthetic Process Of Indigoidine, Yi Chen

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

Indigoidine is a natural blue dye with antioxidant and antimicrobial activities. It has also been used as an indicator for gene expression based on its distinctive blue color. Similar to the industry blue dye indigo, indigoidine has a promising potential to be applied in industry as a blue dye. However, the indigoidine production level in the original microorganisms was very low. Heterologous expression of the responsible synthetase gene in Escherichia coli can facilitate the fast and large-scale production of indigoidine. Also, a good understating of the working mechanism of the synthetase is favorable for the industrial application.

In our previous …

Centerville City Parks Master Plan, Paul Stead

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

This Plan B Thesis is a comprehensive update to Centerville City’s Parks Master Plan. The document seeks to provide stability and continuity to Centerville’s open space infrastructure. Since the last update in 1993, the Parks Master Plan has been without regular updates to reflect the community’s needs and values. As a result, the Plan has largely been ignored and Centerville has lacked a unified vision regarding parks planning. The objective of this thesis project is to help promote a unique recreational identity that assists the community in positively differentiating itself from other communities on the Wasatch Front.

The Inventory and …

Utah Water Watch Volunteer Monitoring Manual, Nancy Mesner, Brian Green, Eli Robinson, Ellen Bailey, Cade Andrus, Jose Pacheco

All Current Publications

This manual is part of the training for Utah Water Watch volunteers.

Scientific Twitter: The Flow Of Paleontological Communication Across A Topic Network, Richard T. Bex Ii, Lisa Lundgren, Kent J. Crippen

Instructional Technology and Learning Sciences Faculty Publications

The field of paleontology, which is based principally on observations of the natural world, includes an active community that is engaged across multiple social media platforms, consisting of museums, academic researchers, amateur fossil collectors, paleontological artists, and commercial fossil dealers. As such, it represents an ideal environment for examining the people, interactions, and flow of scientific information. Using interactions involving the four most popular Twitter hashtags for paleontology, this embedded mixed methods study defined the members of this social world and investigated how they influenced and controlled the flow of information, as well as how their expression of scientific practice …

Current-Use Pesticides In New Zealand Streams: Comparing Results From Grab Samples And Three Types Of Passive Samplers, Kimberly J. Hageman, Christopher H.F. Aebig, Kim Hoang Luong, Sarit L. Kaserzon, Charles S. Wong, Tim Reeks, Michelle Greenwood, Samuel Macaulay, Christoph D. Matthaei

Chemistry and Biochemistry Faculty Publications

New Zealand uses more than a ton of pesticides each year; many of these are mobile, relatively persistent, and can make their way into waterways. While considerable effort goes into monitoring nutrients in agricultural streams and programs exist to monitor pesticides in groundwater, very little is known about pesticide detection frequencies, concentrations, or their potential impacts in New Zealand streams. We used the ‘Polar Organic Chemical Integrative Sampler’ (POCIS) approach and grab water sampling to survey pesticide concentrations in 36 agricultural streams in Waikato, Canterbury, Otago and Southland during a period of stable stream flows in Austral summer 2017/18. We …

Teachers’ Stories About Teaching: Collaborative Dialogues As Open Educational Resources, Ekaterina Arshavskaya

Journal on Empowering Teaching Excellence

This paper examines the nature of teacher learning through a social-constructivist perspective and describes instructional strategies utilized with teachers during an international teaching assistants’ (ITAs’) training workshop offered at the Utah State University (USU). The strategy used involved eliciting and structuring exemplary teachers’ stories about teaching to serve as a basis for class discussions and other assignments. These teachers’ stories, recorded on video, were then shared online through the university website and YouTube. In this way, new teachers gained access to co-constructed and pedagogically appropriate teacher knowledge represented by authentic teachers’ voices.

Full Issue: Journal On Empowering Teaching Excellence, Volume 3, Issue 1, Kim Hales

Journal on Empowering Teaching Excellence

The full Spring 2019 issue (Volume 3, Issue 1) of the Journal on Empowering Teaching Excellence, Spring 2019

The Utah Statesman, July 16, 2019, Utah State University

The Utah Statesman

Weekly student newspaper of Utah State University in Logan.

Plant Based Meat Substitutes, Sensational Reporting, And Information Literacy, Rachel Robinson-Greene

Languages, Philosophy, and Communication Studies Faculty Publications

2019 has been a good year for plant-based meat replacements. In January, Carl’s Junior launched their Beyond Famous Star Burger, made with the plant-based Beyond Meat. The Mexican food franchise Del Taco launched tacos made with Beyond Meat at all of their franchises in April. The introduction of the vegan alternative has been a smash success, leading the company to release two additional products made with Beyond Meat to their menu in June of this year. Many other restaurants have recognized the consumer interest in meat-free options. Restaurants such as Burger King, White Castle, A&W, and Red Robin offer products …

Microwave Assisted Sol-Gel Synthesis Of Silica-Spider Silk Composites, Abul Bashar Mohammad Giasuddin, David W. Britt

Biological Engineering Faculty Publications

This study introduces a simple and environmentally friendly method to synthesize silica-protein nanocomposite materials using microwave energy to solubilize hydrophobic protein in an aqueous solution of pre-hydrolyzed organo- or fluoro-silane. Sol-gel functionality can be enhanced through biomacromolecule incorporation to tune mechanical properties, surface energy, and biocompatibility. Here, synthetic spider silk protein and organo- and fluoro-silane precursors were dissolved and mixed in weakly acidic aqueous solution using microwave technology. Scanning electron microscopy (SEM) and Atomic force microscopy (AFM) images revealed the formation of spherical nanoparticles with sizes ranging from 100 to 500 nm depending, in part, on silane fluoro- or organo-side …

Active Layer Groundwater Flow: The Interrelated Effects Of Stratigraphy, Thaw, And Topography, Michael T. O'Connor, M. Bayani Cardenas, Bethany T. Neilson, Kindra D. Nicholaides, George W. Kling

Civil and Environmental Engineering Faculty Publications

The external drivers and internal controls of groundwater flow in the thawed “active layer” above permafrost are poorly constrained because they are dynamic and spatially variable. Understanding these controls is critical because groundwater can supply solutes such as dissolved organic matter to surface water bodies. We calculated steady‐state three‐dimensional suprapermafrost groundwater flow through the active layer using measurements of aquifer geometry, saturated thickness, and hydraulic properties collected from two major landscape types over time within a first‐order Arctic watershed. The depth position and thickness of the saturated zone is the dominant control of groundwater flow variability between sites and during …

Showing Up For Yourself: Mental Health And Your Mlis, Shannon M. Smith

Library Faculty & Staff Publications

I have been reflecting on my experiences in graduate school and I want to share some of these thoughts, primarily related to survival. Since April, I have had conversations with fellow students and friends that reminded me how much a certain ease of life is portrayed on social media and how easy it is to gloss over or overlook the real work that happens. We curate the posts of our public digital lives much like we curate the information we have been trained to organize and access through library school. One friend in particular shared a confusion that no one …

An Examination Of The Present And Predictions For The Future Of Intercollegiate Athletics, James T. Morton, Donna L. Pastore

Kinesiology and Health Science Faculty Publications

This study forecasts future issues in NCAA Division I FBS intercollegiate athletics. The research design employed the Delphi technique to survey an expert panel, consisting of 12 athletic directors and associate athletic directors from FBS institutions, over three rounds to ascertain what issues are likely to occur over the next five to seven years and whether or not these issues will have a significant impact on the way intercollegiate athletics operates. Results of the study revealed eight issues that were likely to occur over the next five to seven years. Four of these issues related to the economic sector of …