Digital Commons Network^™

Social Acceptability Of Conifer Control And Sagebrush Restoration In The Northern Rocky Mountain Region, Cameron G. Nay

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In the past two centuries, woody plant species have increased in density and extent throughout the rangelands of North America. This encroachment generally has undesirable effects on hydrological function, forest resources, and plant community composition. Encroachment of Douglas-fir (Pseudotsuga menziesii) and ponderosa pine (Pinus ponderosa) into sagebrush communities is occurring in the Northern Rocky Mountain region. Removal and restoration treatments are often proposed to manage this issue, mainly prescribed fire, mechanical destruction, and/or herbicide use. Several contextual factors may affect public level of acceptability for such treatments. The issue frames used to present this problem to …

Evaluation Of Macroinvertebrates As A Food Resource In The Assessment Of Lotic Salmonid Habitat, Nicholas P. Weber

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Criteria used to characterize lotic salmonid habitat are often based on observed correlations between physical habitat characteristics and salmonid abundances. A focus on physical habitat features ignores other habitat components, such as an adequate supply of food that set the physiological limitations on salmonid growth and survival. This study outlines the development of a habitat assessment approach that focuses on how invertebrate food availability interacts with stream temperatures to determine salmonid growth potentials. Abundances of benthic and drifting invertebrate communities, stream temperatures, and juvenile steelhead trout (Onchorhynchus mykiss gairdneri) summer growth rates and abundances were measured within 10 …

Production Performance And Profiles Of Milk Fatty Acids Of Lactating Dairy Cows Fed Whole Safflower Seed Containing High Fat And Low Fiber, Christopher M. Dschaak

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Oil seeds are natural sources of fat and protein in diets for lactating cows, and are usually fed whole or crushed. A recently released variety of safflower seed, 'Nutrasaff,' contains high fat (47% crude fat) and low fiber (26% NDF), and has a potential to be effectively used as a fat supplement for lactating dairy cows. Therefore, a lactating dairy cow trial was conducted to assess production performance of dairy cows when fed graded levels of whole Nutrasaff safflower seed (NSS), to determine the optimum level of NSS supplementation in the diet and to identify its impact on milk fat …

Surgical Sterilization Of Coyotes To Reduce Predation On Pronghorn Fawns, Renee Seidler

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Coyote (Canis latrans) predation accounts for the majority of neonatal pronghorn (Antilocapra americana) mortality in many areas and may influence local population declines. Current techniques used to manage coyote predation on wildlife species generally focus on lethal control methods. However, these methods may be controversial to the general public. Coyote sterilization is an alternative predation control method which is more acceptable to the public and has been shown to be effective in reducing sheep predation. We hypothesized that surgical sterilization of coyotes may increase pronghorn fawn survival; in the same way it reduces coyote predation on …

River Network Structure: A Template For Understanding Predator-Prey Dynamics And Potential Anthropogenic Impacts, Catherine L. Hein

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A landscape perspective is critically important for understanding community structure, particularly in systems dominated by migratory fauna. I aimed to understand how the structure of riverscapes in Puerto Rico mediates potential anthropogenic impacts, predator-prey interactions, and the migratory behavior of a diadromous species. I surveyed fishes and shrimps at sites throughout two watersheds, designed transplant experiments that investigated the role of natural barriers on predator-prey interactions, and developed models of shrimp migration specific to a particular river network. I did not detect an effect of anthropogenic changes to the landscape on fish and shrimp species distributions in two watersheds that …

The Analysis Of An Integrated Model Of Therapy Using Structural And Gottman Method Approaches: A Case Study, Taylor Cameron Herrin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The purpose of this study was to investigate the usefulness of an integrated model of therapy for one therapist. Qualitative and quantitative data were gathered from three family dyads. Ten therapy sessions were coded and analyzed to evaluate fidelity to the treatment model. Several themes emerged from the data that provided a foundation for analysis and clarification of the integrated model. The results of this research are organized into four research categories: fidelity to the integrated model, clients and change, how one session or case informs another, and how therapeutic decisions were made. Results indicate that the therapist maintained fidelity …

Detecting Organic Molecules On The Surface Of Inorganic Dust Particles Using Aerosol Mass Spectrometry, Sileola B. Akinsiku

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Detection of organic molecules present on the surface of dust particles is important in homeland security, agriculture, and several other applications. The research presented reports the ability of the aerosol mass spectrometer (AMS) to detect molecules on the surface of dust particles without detecting the particle core.

Experiments were carried out to detect semi-volatile organic compounds adsorbed onto the surface of particulates without interference from the dust particle core. Methyl salicylate, oleic acid, and organophosphorus pesticides such as Malathion were detected on the surface of particles representative of dust-type materials. Zeolite powders were used as aerosol support, representative of a …

Optimal Candidate Generation In Spatial Co-Location Mining, Zhongshan Lin

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Existing spatial co-location algorithms based on levels suffer from generating extra, nonclique candidate instances. Thus, they require cliqueness checking at every level. In this thesis, a novel, spatial co-location mining algorithm that automatically generates co-located spatial features without generating any nonclique candidates at any level is proposed. Subsequently, this algorithm generates fewer candidates than other existing level-wise, co-location algorithms without losing any pertinent information. The benefits of this algorithm have been clearly observed at early stages in the mining process.

The Effects Of A Short-Term Teacher Abroad Program On Teachers' Perceptions Of Themselves And Their Responsibilities As Global Educators, Raquel Cook

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In October 2007, two hundred American educators traveled to Japan for three weeks as guests of the Japanese government under the Japanese Fulbright Memorial Fund (JFMF) Teacher Abroad program. The purpose of the trip was to increase understanding between the people of Japan and the United States; to enrich American and Japanese curricula with international perspectives; to encourage appreciation for the people, culture, and educational system of Japan; and to expand professional development opportunities for educators.

Broadly speaking, these are the goals of global education. The question this qualitative case study examined is whether teachers who participate in isolated, short-term …

From Sagebrush To Subdivisions: Visualizing Tourist Development In Jackson Hole, Wyoming, 1967-2002, Clinton R. Pumphrey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Historians have long recognized the tendency of communities to embrace tourism when extractive practices like agriculture, mining, and ranching fail as a dominant economic strategy. Jackson Hole, Wyoming, is a prime example of this phenomenon in the American West. From its origins as a Mormon farming community in the late-nineteenth century, the valley evolved into an extensively developed tourist mecca by the end of the next. While this industry was initially supported by hotel-dwelling auto tourists, by the 1960s wealthy second-home buyers began to descend on Jackson Hole, buying up scenic property and constructing vacation homes. Over the next few …

Knowledge Of Coumadin Use And Vitamin K Interaction In Atrial Fibrillation Patients, Heidi M. Moss

Undergraduate Honors Capstone Projects

Background: Atrial fibrillation (AF) is the most commonly observed arrhythmia and is expected to increase to over 12 million in the next few decades. Patients with AF are at high risk of stroke due to the use of Coumadin in combination with stroke risk factors such as age >75 years, hypertension, diabetes, heart failure, and prior stroke or transient ischemic attack. Coumadin specifically targets the blood clotting cascade by inhibiting the regeneration of vitamin K needed for the activation of clotting factors. A 100 mcg increase in vitamin K intake over at least 4 days can reduce patient internationalized national …

Patterns Of Psychosocial Functioning And Mental Health Service Utilization In Children And Adolescents With Chronic Health Conditions Or Physical Disabilities, Sara M. Hunt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was designed to further understand the psychosocial functioning of youth with chronic health conditions or physical disabilities, their need for and use of mental health services, and possible barriers to receiving needed services. Previous research has suggested these youth experience poorer psychosocial functioning compared to peers without special health care needs, and they also underutilize needed mental health services. A mixed-methods design was implemented consisting of a quantitative parent survey and a qualitative semistructured interview with young adults with special health care needs.

Children demonstrating poorer psychosocial adjustment in this study experienced more problems related to social functioning …

Does Fruit And Vegetable Intake Decrease Risk For Obesity In Children And Adolescents?, Vanessa Reichmann

Undergraduate Honors Capstone Projects

No abstract provided.

Knowledge Of Coumadin Use In Atrial Fibrillation Potients, Krista Skye Viau

Undergraduate Honors Capstone Projects

Background: Atrial fibrillation (AF) is the most common observed arrhythmia in clinical practice. Over the next decades, the number ofpeople affected by AF is estimated to be anywhere from 5.6 to over 12 million. In patients with AF, thromboembolism is a central concern, as it can lead to stroke with significant morbidity and mortality. Coumadin anticoagulation has been shown to significantly reduce stroke risk, particularly in patients with other risks, such as hypertension, diabetes, prior stroke, or heart failure. Although Coumadin is effective in reducing stroke, its chronic use requires frequent international normalized ratio (INR)/protime monitoring. This is necessary because …

Sustaining The Allideghi Grassland Of Ethiopia: Influences Of Pastoralism And Vegetation Change, Almaz Tadesse Kebede

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Allideghi Wildlife Reserve in the Amibara District of Afar Regional State, Ethiopia, has international significance for harboring endangered Grevy's Zebra and other wildlife dependent on grasslands. The reserve is increasingly used by pastoral people and their herds. Impacts of livestock on native vegetation include direct effects of grazing and indirect effects from livestock-facilitated dispersal of an invasive plant, Prosopis juliflora. The main research objective was to determine effects of pastoralism and vegetation change on prospects for sustaining the Allideghi Wildlife Reserve as grassland habitat for Grevy's Zebra. Methods included use of driving surveys to quantify resource use by …

Alternative Futures 2030: Ogden Valley, Louis Alan Hurst

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

Ogden Valley is a high mountain community located in the northern Wasatch Mountain Range (Figure 1), and is located entirely within Weber County, Utah. Three communities sit within the valley: Huntsville, Eden, and Liberty. Early Mormon settlers established these communities in the mid-1800s; however, only the town of Huntsville is incorporated. The rural valley is in close proximity to the densely populated Wasatch Front, in particular, Ogden City. Ogden Valley is approximately 331 square miles and has an elevation that ranges between 4400 and 9700 feet. This wide range in elevation provides a diverse environment for humans, wildlife , and …

An Evaluation Of The Allocation Of Funding For Assistive Technology: A Case Study, Cindy L. Ollis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Although benefits of assistive technology (AT) to people with disabilities are widely apparent, barriers, primarily funding, still inhibit access to needed AT. All agencies receiving federal funding are required to show no discrimination with regard to age, race, disability, and gender. This case study of a state run agency providing funding for AT to enable independent living among people with disabilities involved analyzing spending data from 2003 2008 to determine who used the fund, what was purchased, and whether it was equitably distributed according to age, ethnicity, gender, and population density. Additionally variables predictive of amount spent per person were …

Cognitive Inference And Resulting Behaviors In Response To Ambiguous Threat In The Coyote, Canis Latrans, Sarah Shawnee Dawson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

While antipredator strategies have been a focus of behavioral research for decades, scientists generally study the responses of prey toward overt, explicit threat. However, risk can also be significant when a threat is covert, such as when an ambush predator may be nearby or a secondary threat remains after a predator's departure. Little is known about the mechanism that prey use to assess risk in a predator's absence. Tests were conducted to determine the manner in which coyotes respond to these ambiguous threats. Specifically, I tested whether coyotes respond to prior anthropogenic activity that has occurred near their only food …

Effects Of Targeted Grazing And Prescribed Burning On Fire Behavior And Community Dynamics Of A Cheatgrass (Bromus Tectorum)-Dominated Landscape, Joel M. Diamond

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Studies were conducted to determine the effectiveness of using targeted grazing and prescribed burning as tools to reduce fire hazards and cheatgrass (Bromus tectorum) dominance on rangelands in the northern Great Basin. A field study, with four grazing-burning treatments (graze and no-burn, graze and burn, no-graze and burn, and no-graze and no-burn), was conducted on a B. tectorum-dominated site near McDermitt, Nevada from 2005-2007. Cattle removed 80-90% of standing biomass in grazed plots in May 2005 and 2006 when B. tectorum was in the boot (phenological) stage. Grazed and ungrazed plots were burned in October 2005 and …

Probing The Mechanics Of Environmental Kuznets Curve Theory, Jeremy Lynn Kidd

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The theory of the Environmental Kuznets Curve (EKC) proposes to answer important questions regarding the connections between economic growth (development) and the environment. The theory postulates the environment need not always suffer as the economy develops, and it has generated strong support and opposition. Rather than attempting to defend or debunk EKC theory, this research challenges a practice engaged in by proponents and opponents alike. Simplifying assumptions are a necessary part of economic analysis, but this research shows that any assumptions may not be universally applicable. Utilizing, in turn, a simple one-good model and then a more complicated two-good model, …

Predicting The Growth Potential Of A Shallow, Warm-Water Sport Fishery: A Spatially Explicit Bioenergetics Approach, Samuel Kirk Dahle

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Capturing the range of fish consumption and growth potential of large, heterogeneous lentic systems can be challenging due to strong gradients in productivity, the diversity of habits types present, and in some cases, site-specific water quality issues. Cutler Reservoir (Utah, USA) displays a high degree of spatial and temporal variation in physical conditions and potential water quality limitations for fish, including high summertime water temperature and large, diel fluctuations in dissolved oxygen concentrations. The combination of bioenergetics modeling and GIS spatial analysis offers a promising interface for quantifying the fish consumptive and growth potential across a spatially and temporally heterogeneous …

Measurement Of Air Pollutant Emissions From A Confined Poultry Facility, Olumuyiwa Omotola Ogunlaja

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Air emissions from animal feeding operations have become a growing concern. Much work has been done to study occupational exposures and the exhaust concentrations associated with animal facilities; however little information has been provided about air quality around the houses. Ammonia (NH₃ ), ethanol (EtOH), nitrous oxide (N₂O), carbon dioxide (CO₂), and particulate matter (PM _2.5 and PM₁₀) emissions were monitored in two different buildings for laying hens in northern Utah. Over the six-month sampling period, the observed average temperatures for the west and east fan banks of the high-rise building were 21.2±4 …

An Evaluation Of Referral Patterns And Therapy Outcomes At A University Counseling Center: Analysis Of A Dialectical Behavior Skills Training Group, Eri Suzuki Bentley

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was designed to answer two research questions. First, factors associated with placement decisions to three treatment modalities in a university counseling center were examined; the skills training group for dialectical behavior therapy plus individual therapy (DBT), the interpersonal process group plus individual therapy (IP), and individual therapy only (IND). Individual therapy in all three conditions did not follow a specific theoretical orientation. Of 203 participants (55 males, 148 females), 83 were in DBT, 53 were in IP, and 67 were in IND. Client information included demographic variables (e.g., age, gender) and clinical variables (i.e., diagnosis, and scores from …

The Research, Process, And Design Of The Trout Creek Revegetation Plan, Daniel C. Bolin

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

The Bear River is the largest tributary to the Great Salt Lake, with water volumes reaching up to 1.4 million acre feet of water. The river begin s in Utah 's Uinta Mountains and flows into Wyoming and Idaho before finally flowing south and returning to Utah. The river flows nearly five hundred mile s before emptying into Bear River Bay of the Great Salt Lake, ending only ninety miles from its origin (Utah History to Go, 2008).

An Alternative Futures Study For The Uintah Basin: Exploring 2030, Nicholas E. Kenczka

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

The Uinta Basin is located within the Colorado Plateau consisting of various ecosystems ranging from high elevation mountainous regions to sage and juniper woodlands. The basin rests in the northeast corner of Utah with the largest communities being Vernal, Roosevelt, and Duchesne. Other key features include the Flaming Gorge Recreation Area, Green River, and Dinosaur National Monument. The basin historically has been a major region for natural resource extraction, and the population fluctuation has mirrored the "boom" and "bust" cycles of the industry. The Uintah Basin has recently recognized the need for developing a comprehensive plan for identifying the critical …

Goatsrue (Galega Officinalis) Seed Biology, Control, And Toxicity, Michelle Oldham

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Goatsrue is an introduced perennial plant that has proven to have great invasive potential, leading to its classification as a noxious weed in many states and at the federal level. This research focused on seed biology, herbicide control, and toxic dynamics of goatsrue. Physical dormancy of mature goatsrue seed was tested through scarification using sulfuric acid with exposures of up to 60 minutes resulting in 100% germination. Comparison of dormancy for 26-year-old and 6-month-old goatsrue seed indicated aged seeds had reduced dormancy levels compared to newly harvested seeds, but had similar viability. Goatsrue seedling emergence was inversely related to burial …

Isolation And Characterization Of Different Aggregates Of Lipid From Bovine Milk, Ankur Jhanwar

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Bovine milk fat globules naturally vary from less than 0.2 µm to 15 µm in diameter. Milk has at least two distinct distributions of fat globules. While the majority (~90%) of globules in milk are of the smaller distribution (average diameter of 0.4 µm), virtually all the fat is carried in the larger globules (average diameter 3.5 µm). This distribution suggests some compositional and/or functional significance might exist between the two populations of fat globules, which may be related to origin of these globules in the lactating cell.

Milk fat globules have a unique structure, composed of a core droplet …

Vegetation Characteristics Of Wyoming Big Sagebrush Communities Historically Seeded With Crested Wheatgrass In Northeastern Great Basin, Usa, Justin Rodney Williams

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Crested wheatgrass (Agropyron cristatum [L.] Gaertn.) is one of the most commonly seeded grass species in the western United States and dominates thousands of hectares in the Great Basin. Although many degraded Wyoming big sagebrush (Artemisia tridentata ssp. wyomingensis) plant communities have been seeded with crested wheatgrass, successional pathways, influence of soil attributes, and cultivation history on the vegetation of these communities have not been fully characterized. I sought to identify community phases, vegetative differences, and soil attributes that explain variation among 35 Wyoming big sagebrush communities historically seeded with crested wheatgrass. All communities were more than …

Water Allocation For Agricultural Use Considering Treated Wastewater, Public Health Risk, And Economic Issues, Ahmed E. Al-Juaidi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Increasing demand on limited water resources calls for more efficient and improved approaches to maximize the benefits of water use. Typically, agricultural water use has the largest share among all water use sectors. Therefore, finding the best agricultural water management alternatives to maximize profit and reduce financial and other related risks under limited water availability is essential. Treated wastewater is an important alternative source of agricultural water which has the potential to reduce the stress on freshwater sources from urban and industrial sectors. Thus, further research on optimal agricultural water management is needed to find the best management alternatives that …

The Bioactive Properties Of Syringomycin E-Rhamnolipid Mixtures And Syringopeptins, Mekki F. Bensaci

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The need for new antimicrobial agents has become important in the last decade due to emerging resistance to a number of conventional antimicrobial agents. New approaches and sources are needed to generate novel and effective antimicrobials. For example, synergistic combinations between two or more agents may lead to new antimicrobial therapies. Furthermore, the increase in health problems caused by the exposure to agricultural crop pesticides and synthetic fungicides and the emerging development of organic farming has increased the necessity to develop natural products than can be used safely in controlling crop diseases.

In this work, I present the first studies …