Digital Commons Network^™

Dads' Parent Interactions With Children-Checklist Of Observations Linked To Outcomes (Piccolo-D): Developing An Observational Measure Of Father-Child Interaction, Sheila Anderson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Intervention programs providing support for father parenting skills need a practical but psychometrically strong observational measure of fathers’ early positive parenting interactions with children. The primary purpose of this project was to develop a valid, reliable observational measure of father-child interaction, based on research and theory, that predicts child outcomes, identifies fathers’ strengths, and will be useful for home visiting practitioners. This study sought to fulfill this need by developing a new measure called Dads’ Parenting Interactions with Children—Checklist of Observations Linked to Outcomes (PICCOLO-D) for home visitors to use to identify fathering strengths. Developed with extant video observations of …

Knowledge, Norms And Preferences For Tamarisk Management In The Green And Colorado River Corridors Of The Colorado Plateau, E. Clay Allred

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This research was created collaboratively between the National Park Service and Utah State University as an explorative study addressing social implications of tamarisk management. It has created a stronger partnership between the university and the National Park Service in Moab, Utah. Through this research, Utah State University was able to find valuable social science data to aid public land managers in the planning and management of tamarisk control on the Colorado Plateau. Utah State funded a research assistant for one year to perform this research, totaling approximately $16,000.

This study focused on finding river user knowledge, preferences, and norms for …

Research Into The Utility Of Standards In Foreign Language Instruction: A Case Study Of Methods Used In The High School Setting, Paul S. Kirby

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Given the increased emphasis on language acquisition in public education, and in university, government, and military settings there will be an increased focus on the
language classroom. My goal in this study was to investigate how five foreign language instructors in the Salt Lake metropolitan area perceived and implemented the national standards disseminated by the American Council for the Teachers of Foreign Language (ACTFL) known as the five Cs. These standards have also been adopted by the Utah State Office of Education (USOE). A broadened understanding was achieved through analysis of structured interviews, direct observation of foreign language instructors, evaluation …

In Vitro And In Vivo Comparison Of The Pathogenicity Of Four Influenza Virus Strains, Brett L. Hurst

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Influenza viruses cause between 3 and 5 million cases of respiratory infection each year and are responsible for between 250 and 500 thousand deaths. Two avenues for the treatment and prevention of influenza virus infections are vaccination and antiviral chemotherapy. Prevention is largely accomplished through vaccination. While vaccines remain the preferred method for controlling the spread of influenza, antiviral treatment is important for severe infections caused by new and emerging virus strains. Occasionally new viruses emerge to which the population has no previous immunity. Such was the case when the pandemic H1N1 influenza virus appeared in 2009. When new viruses …

The Intersection Of Multiple Oppressed Identities: Implications For Identity Development, Angela Marie Enno

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Understanding the experiences and identity development of ethnic minority LGBTQ (lesbian, gay, bisexual, transgender and queer or questioning) individuals presents a challenge because the theories of identity development that exist to date may not take into account their unique perspectives. Theories of identity development that are not specific to ethnic minority or LGBTQ identities may not represent their experiences well. At the same time, theories of ethnic identity development may not fit for individuals who are LGBTQ; and theories of LGBTQ identity development may not fit for ethnic minorities. No theory of identity development to date takes into account all …

Rationalizing Structure, Stability, And Chemical Bonding Of Pure And Doped Clusters Isolated And Solvated Multiply Charged Anions, And Solid State Materials, Alina P. Sergeeva

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Chemistry is the study of materials and the changes that materials undergo. One can tune the properties of the known materials and design the novel materials with desired properties knowing what is responsible for the chemical reactivity, structure, and stability of those materials. The unified chemical bonding theory could address all these questions, but we do not have one available yet. The most accepted general theory of chemical bonding was proposed by Lewis in 1916, though Lewis’s theory fails to explain the bonding in materials with delocalized electron density such as sub-nano and nanoclusters, as well as aromatic organic and …

Use Of Rumen Modifiers To Manipulate Ruminal Fermentation And Improve Nutrient Utilization And Lactational Performance Of Dairy Cows, Christopher M. Dschaak

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A series of lactation studies reported in this dissertation hypothesized that supplementing different rumen modifiers would have consistent responses on ruminal fermentation and lactational performance under optimal rumen conditions.

The first experiment investigated the influence of magnesium exchanged zeolite on ruminal fermentation and lactational performance. Intake of dry matter (DM), milk yield, milk fat, and feed efficiency were not affected. Milk protein concentration tended (P = 0.15) to be higher for cows fed the zeolite. Ruminal pH tended to increase (P = 0.11) by feeding the sodium bicarbonate or the zeolite.

A second lactation experiment determined …

Exploring A Stable Aspen Niche Within Aspen-Conifer Forests Of Utah, Cody M. Mittanck

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study addresses a critical issue faced by resource managers confronting aspen restoration projects in the Intermountain West. Quaking aspen (Populus tremuloides Michx.) forests have received a large amount of popular and academic attention over the last decade due to concerns over decline. As a result, both private and public forest resource managers have focused attention on actively restoring aspen communities through treatments such as prescribed burning, logging, and grazing exclosures to name a few. There is increasing evidence suggesting the existence of "stable" aspen communities. This community type undergoes processes entirely different from successional aspen communities and …

1. Improving The Yield Of Biodiesel From Microalgae And Other Lipids. 2. Studies Of The Wax Ester Biosynthetic Pathway And Potential Biotechnological Application, Bradley D. Wahlen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The production of biofuels and oleochemicals from renewable sources offers an opportunity to reduce our dependence on fossil fuels. The work contained in this dissertation has focused on developing and improving methods for the production of biodiesel from non-traditional feedstocks and understanding biosynthetic pathways that result in the production of oleochemicals and fuels.

Pure vegetable oil can account for 70-80% of the total cost of biodiesel production. Many low-cost oils contain high amounts of free fatty acids, which are unsuitable for base-catalyzed transesterification. Herein an approach is described that efficiently accomplishes the simultaneous esterification and transesterification of both free fatty …

Structural And Mechanistic Investigations Of Phosphothreonine Lyase Class Of Enzymes, Alok Gopalkrishna Shenoy

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Phosphorylation and dephosphorylation are a highly pervasive mechanism in biology that is used by the cell to modulate enzymes and proteins. The presence of a phosphate group can activate or deactivate an enzyme. The phosphate group is linked to a protein by a phosphoester bond that is known to be highly stable in cytoplasmic pH range. Thus the breaking and formation of these bonds need to be effected by enzymes.

Recent discovery of the activity carried out by certain virulence related proteins (OspF released by Shigella and SpvC released by Salmonella) have resulted in a necessity to create a new …

The Survival And Growth Of Adult Bonneville Cutthroat Trout (Oncorhynchus Clarkii Utah) In Response To Different Movement Patterns In A Tributary Of The Logan River, Utah, Jared W. Randall

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In the past many inland trout species were believed to be sedentary, only occupying small stream segments (20 meters) during their life span. Recently it has been found that cutthroat trout do move and many populations do contain both mobile and non-mobile strategies. Most organisms move to attain greater growth rates, but movement also leads to higher detection by predators. Both mobile and non-mobile strategies have been observed in Spawn creek, a tributary of the Logan River in Northern Utah. My research evaluated the movement patterns, survival, and growth of adult Bonneville cutthroat trout Oncorhynchus clarkii Utah. My objectives …

Dystopian Literature And The Novella Form As Illustrated Through Side Effects, An Original Novella, Bryan W. Johnson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This master’s degree thesis exists in two parts: a critical introduction and an original novella entitled Side Effects. The critical introduction introduces and explains the theories on, literature surrounding, and literary uses of dystopian fiction, the novella format, and drug-based psychotherapy. Current opinion on dystopian fiction sees it characterized by a seemingly perfect societal setting that ultimately contains hidden or suppressed moral flaws. The ultimate purpose of dystopian fiction is commentary on contemporary society through a defamiliarized setting. The novella format is shown to exist in a middle-ground state between the short story and the novel, yet the format …

A Coupled Human And Natural Systems Approach To Understanding An Invasive Frog, Eleutherodactylus Coqui, In Hawaii, Emily A. Kalnicky

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Human activities worldwide have altered nature in ways that create new combinations of species and environmental processes. To understand so-called "novel ecosystems" it is important to consider both the natural and the societal factors that shape them, and how those factors are interconnected or "coupled." We used such an approach to explore options for managing a non-native invasive frog, the coqui, which has become established on the island of Hawaii and threatens to spread to other parts of the state.

The nighttime calls of the coqui create a nuisance for property owners when populations become dense enough, as often occurs …

A Multicase Study Of The Impact Of Perceived Gender Roles On The Career Decisions Of Women In Science-Related Careers, Stephen Frank Hren

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was done to determine how the perception of gender roles developed throughout childhood and early adulthood affected the career decisions of women who showed early promise in science. In addition, this study was done to determine if my experiences as a researcher would have any impact on me personally. Four women were chosen as case study participants, providing for comparison within and across cases.

Gender roles were found to relate to the career decisions made by the four cases in three ways: (a) support from family members, teachers, mentors, and collaborators; (b) opportunities within the family, school and …

Instances Of Conflict And Cooperation: An Exploration Into The Role Of Competition Between Usda-Wildlife Services And Wildlife Control Operators, Gary J. Bezzant Jr.

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In early 1994 the United States Department of Agriculture’s Animal Damage Control agency implemented a directive providing guidance to help avoid competition between themselves and private businesses, known as Wildlife Control Operators (WCOs) engaging in similar work. Nearly two decades later some WCOs still complain about having to compete with the Animal Damage Control agency, now named Wildlife Services. Other businesses report enjoying a cooperative relationship with the agency.

I analyzed four policies that regulate competition between Wildlife Services and WCOs and found that there is a good amount of guidance given to Wildlife Services in regards to their competitive …

A Baseline Study Of Biofuel Feedstock Growth On Non-Traditional Agronomic Land In Utah, Dallas A. Hanks

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Nearly all highway, airport, and military areas in Utah cost money to maintain and are often safe harbor for noxious weeds and pests. This project hypothesized that money could be saved and biofuel feedstocks could be grown in these areas, improving sustainability. Agronomic conditions and growth methods were tested to determine if biofuel feedstock production could occur on these marginal, non-traditional plots of land. Models developed illustrate that maintenance costs for these areas can be nullified if oilseed crops grown yield 600 pounds/acre and are used for biodiesel production. This feedstock yield would result in approximately 25 gallons of biodiesel …

Determining Compost Carryover For Optimal Use In An Organic Corn Squash Rotation, Davey J.R. Olsen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In 2008–2011 a graduate project was undertaken by Davey Olsen under the supervision of Utah State University (USU) Plant, Soils and Climate professors, Drs. Jennifer Reeve, Dan Drost, and Astrid Jacobson. The project investigated a new way of measuring the benefits of applying compost to organically certified horticultural crops. In particular, the carryover of these benefits in the three years following a one-time application was studied. A field trial at the USU Organic Farm modeled the carryover of nitrogen and phosphorus in a corn and squash rotation, while laboratory analysis investigated aspects of nitrogen availability and compost decomposition over time. …

Isolation And Purification Of Anthocyanins From Black Bean Wastewater Using Macroporous Resins, Xiaoxi Wang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Isolation and purification of anthocyanins from black bean canning wastewater by column chromatography with macroporous resins were investigated in this study. Different adsorption materials and adsorption conditions were compared and the most effective material and adsorption conditions were selected to purify anthocyanins. Purified anthocyanins then were identified by high performance liquid chromatography electrospray tandem mass spectrometry. The most effective macroporous resin was selected by comparing the adsorption performance of five different types of macroporous resins (Diaion Hp20, Sepabeads Sp70, Sepabeads Sp207, Sepabeads Sp700, and Sepabeads Sp710). Equilibrium adsorption isotherms of five resins with wastewater were measured and analyzed using Langmuir …

Ethnic Disparities In Prenatal Care Utilization In Vietnam, Ha Ngoc Trinh

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

Prenatal care is credited with reducing neonatal, perinatal, and maternal mortality and morbidity. The main purpose of the thesis is to examine the ethnic disparities between majority and ethnic minority women in prenatal care usage. The thesis also analyzes the effects of age, education attainment, female employment, and region on prenatal care utilization in Vietnam. I employ the Demographic and Health Survey 2002 in Vietnam. Descriptive statistic and logistic regression are the two statistical tests employed in this research. Results exhibit evidence of ethnic disparities in type of prenatal care utilization. Although ethnic minority women are likely to enter prenatal …

Functional Rehabilitation Of Low Back Pain With Core Stabilization Exercises: Suggestions For Exercises And Progressions In Athletes, Joshua Johnson

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

Introduction: Low back pain is very common in the adult population and accounts for more time lost from work than other diagnoses. It also affects athlete's at all different levels of competition and results in missed practice and game time. Diagnosing and treating a specific pathology is often difficult because clinical evaluation and radiologic studies are often unable to find a root cause. A popular treatment approach with a high volume of anecdotal evidence is the use of core stabilization exercise in the treatment of low back pain.

Purpose: To evaluate exercise as a treatment for a low back pain …

Streambed Thermal Property Instrument (Spi), James Alwel Dayie

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

The purpose of this research, the Streambed thermal Property Instrument (SPI) is to determine the applicability of this instrument for in situ thermal (conductivity and diffusivity) and porous flow (magnitude and direction) measurements. Currently, no such thermal instrument exists for such in situ measurements and the reason for developing this unique instrument, the SPI to fill the technology gap in sediment thermal property measurement devices. Prior to testing the instrument under controlled laboratory conditions to determine its functionality through a series of static and flow tests, the instrument was designed and built. A lab-sized version of an actual river called …

Moving Toward Culture Change: Defining Skilled Nursing Facility Residents Dining Style Preferences, Katheryn Adams

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

Background Public policy fulfillment coupled with skilled nursing facility's desire to increase quality of service to meet changes in residents' expectations and improve marketability warrant a new look at culture change and home like dining as defined by the residents in skilled nursing facilities.

Objective The objectives of this study were to determine residents' home dining practices, define residents' desired dining style practices in the skilled nursing facility and determine the relationship between at home dining and dining preferences in skilled nursing facilities.

Design The quasi-experimental study started with a convenience sample taken from a facility generated potential participant list. …

The Deepwater Horizon Oil Spill Disaster: A Graphical Assessment Of Its Impact On Wildlife, Anvar Suyundikov

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

The Deepwater Horizon oil spill occurred in the Gulf of Mexico on April 20, 2010. Considered the largest accidental marine oil spill in history, oil flowed for three months and approximately five million barrels of oil spilled through by mid-July 2010. In this report, we analyze fish and bird data to assess the impact of the oil spill on the Gulf wildlife. Our findings based on the available fish data for 2005, 2006, and 2010 are not very helpful to make a judgement on the negative impact of the oil spill on fish species. On the other hand, the bird …

A Multiple Streams Approach To Bioterrorism Policy, Craig Reeder

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

Bioterrorism is not a new phenomenon and the issues that surround bioterrorism are complex. This paper focuses on the history of bioterrorism, its current threat in public view, and then applying a theory in which explains how those problems became issues in government. The paper starts by examining a historical account of bioterrorism. The history serves a purpose to discuss the ongoing developments and struggles of drafting legislation for an ongoing problem.

After a discussion of bioterrorism from a historical perspective, the paper examines the current threat or state of bioterrorism. This will lead into a discussion about John Kingdon’s …

Utah State University Botanical Center Stream Master Plan, Daniel Willard Schults

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

The Utah State University Botanical Center Stream Master Plan is a design to assist Utah State University Botanical Center (USUBC) administration in fulfilling their goals of community outreach and education, implementing sustainable practices and creating aesthetically beautiful areas for public enjoyment. These goals are met through updating the USUBC master plan to account for the newly built man-made stream as well as other future buildings. Trails, overlooks and information nodes are part of the new master plan. The planting plan includes representations of six natural plant communities found in Northern Utah. Additionally, the stream design improves the water quality of …

Assessing Changes In The Abundance Of The Continental Population Of Scaup Using A Hierarchical Spatio-Temporal Model, Beth E. Ross

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

In ecological studies, the goal is often to describe and gain further insight into ecological processes underlying the data collected during observational studies. Because of the nature of observational data, it can often be difficult to separate the variation in the data from the underlying process or 'state dynamics.' In order to better address this issue, it is becoming increasingly common for researchers to use hierarchical models. Hierarchical spatial, temporal, and spatio-temporal models allow for the simultaneous modeling of both first and second order processes, thus accounting for underlying autocorrelation in the system while still providing insight into overall spatial …

Plants Search Engine, Purnachandra Kanagala

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

This project presents a Web search engine for North American plant species that provides easy and fast access to plant information from multiple data sources. This project’s overarching goal is to integrate plant information from different sources under a single interface to allow any user to search said information from a universal portal rather than searching in several places. The user interface was designed and customized to help the user search for anything related to North American plants and get the required information within few clicks with the help of the faceted browsing. The user experience is more enhanced by …

Landscape And Habitat Attributes Influencing Beaver Distribution, Ryan John Leary

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

Removal of beaver across the North America landscape from the 1600s through the 1800s has played a major influence on the alteration of stream and riparian resources. Degradation of riparian habitats has negatively impacted many wildlife and fish species, including species listed under the Endangered Species Act. The ability of beavers to modify stream ecosystems offers a unique opportunity to restore these habitats. Many private and government agencies are working towards using beaver as a restoration tool, not only for better functioning ecosystems but also to benefit humans. Taking the big picture look, beaver and their ability to modify the …

A Pre-Paving Baseline Inventory Of Vehicle-Related Mortality On Mule Deer Along, Seep Ridge Road, Book Cliffs, Utah, D. Alex Hansen

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

Part I:

The Seep Ridge road is the major route used to access the Book Cliffs from Uintah County. For many years the County has expressed interest in paving the road in order to improve access to this remote portion of the County. In 2011 Uintah County received Bureau of Land Management (BLM) approval for the project and began construction on the road. There have been many concerns expressed concerning the Seep Ridge Road paving project, including impacts to mule deer. The Utah Division of Wildlife, sportsmen and conservation groups are concerned that upgrading the road may lead to a …

Automation Of Tangential Flow Filtration For Purification Of Biosynthetic Spider Silk, Candace N. Clark

Undergraduate Honors Capstone Projects

The objective of this project is to create a user-friendly, automated flow regulation system for a tangential flow filtration (TFF) process. These filtration units are crucial for the initial stages of extracting the spider silk proteins from transgenic goat milk. Automated flow regulation systems do exist, but not at an appropriate scale for this application. This system will allow bench-top studies to be conducted with automated efficiency. Spider silk is an amazing material and if commercially available, it could be used in hundreds of applications. Currently, cost effective production is the most significant issue stopping large-scale production and use of …