Digital Commons Network^™

Cytokine Indicators Of Inflammation In Mice Fed A Western Type Diet, Emily Mortensen

Fall Student Research Symposium 2020

Colorectal cancer is currently the second leading cause of cancer-related deaths in the United States and is projected to cause 53,200 deaths during 2020. The risk of colon cancer increases by 8-20% in individuals who suffer from colitis, which is inflammation of the colon lining. Colitis is common in patients with inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis. The development of colorectal cancer is complex and can be associated with dysbiosis of the gut microbiota, which has been shown to be affected by diet. Disruption of the gut microbiome can lead to the overgrowth of pathogenic bacteria …

The Importance Of Experiment Replication In Understanding Distribution Of 'Alalā Seed Retention Time, Camilla Moses

Fall Student Research Symposium 2020

Hawaiian forests have suffered damages from climate change, introduced plants, and introduced animals that trample or graze on the native vegetation. The 'Alalā, a native Hawaiian bird that is being reintroduced from captivity, is a disperser of native plants and can facilitate the restoration of native vegetation in Hawaiian forests. If the seed retention time and the flight paths of the 'Alalā are known, we can estimate the distribution of the seeds they disperse and see the effect the species has on forest restoration. In this study, the seed retention time of the 'Alalā is predicted from body mass using …

Identification And Characterization Of Pd-L1 In Bovine Placentas, Andre Nguyen

Fall Student Research Symposium 2020

Successful bovine pregnancy requires that the maternal immune system modulate T lymphocytes. Program death-ligand 1 (PD-L1) is an inhibitory protein that is associated with immune tolerance and modulation of T cells. Previous studies have linked PD-L1 to suppressing T cell activity and modulating cytokine production, therefore, inducing maternal tolerance and acceptance of the fetus. PD-L1 may be a possible mechanism involved in establishing successful bovine pregnancies. To this day, no evidence of PD-L1 RNA or protein was found in bovine placentas. We hypothesize that PD-L1 is present in the bovine placenta and its expression differs between trimesters. To analyze the …

Dogs In Ancient Egypt, Ella Olson

Fall Student Research Symposium 2020

The Ancient Egyptians are infamous for their love of cats, but what about dogs? It turns out that dogs were equally loved and praised in Egyptian culture. A large part of this comes from the religious significance of dogs- they are connected to the afterlife through Anubis, the god of the dead, and were thought to act as companions and guides to humans in the afterlife. Anubis is an interesting god to look at because he's one of the oldest and most respected gods. In today's terms, we refer to him as having a jackal head, but the Egyptians considered …

Synthesizing Octahedral Polyomavirus Capsids For Cryogenic Electron Microscopy, Miles Robertson

Fall Student Research Symposium 2020

Polyomavirus capsids are polymorphic under different chemical conditions. These capsids have been synthesized artificially using purified VP1, the primary building block of the capsid. Five VP1 proteins come together and form a highly stable structure called a pentamer, and these pentamers can form capsids (Figure 1). Depending on chemical conditions, the capsids can form three distinct sizes: T=7, octahedral and icosahedral (Figure 2). Only one form is found in infectious virions, and its structure has been well studied. However, no high-resolution structure of the octahedral capsid currently exists. The goal of this research is to solve the structure of the …

Enabling Mars Farms Through Microbial Remediation Of Wastewater, Tyler Wallentine

Fall Student Research Symposium 2020

This research evaluates the capacity of photoheterotrophic purple non-sulfur bacteria to utilize wastewater organics to grow and produce nitrogen-rich biomass. Inhibitory components of wastewater are determined. A scaled up production system is designed and utilized to culture bacteria in wastewater. The application of this technology in the production of agriculturally viable amounts of nitrogen-rich biomass is evaluated in the context of a Mars mission and enabling agriculture in a barren environment.

Criollo Cattle As A Strategy To Maintain Output Of Ecosystem Services Under A Changing Climate, Kari E. Veblen

Funded Research Records

No abstract provided.

Resilient And Rapid Recovery Of Native Trout After Removal Of A Non-Native Trout, Phaedra E. Budy, Timothy Walsworth, Gary P. Thiede, Paul D. Thompson, Matthew D. Mckell, Paul B. Holden, Paul D. Chase, W. Carl Saunders

Watershed Sciences Faculty Publications

While the importance of reducing impacts of non-native species is increasingly recognized in conservation, the feasibility of such actions is highly dependent upon several key uncertainties including stage of invasion, size of the ecosystem being restored, and magnitude of the restoration activity. Here, we present results of a multi-year, non-native brown trout (Salmo trutta) removal and native Bonneville cutthroat trout (Oncorhynchus clarkii utah) response to this removal in a small tributary in the Intermountain West, United States. We monitored trout for 10 years prior to the onset of eradication efforts, which included 2 years of mechanical …

Educational Policies Committee Minutes, December 3, 2020, Utah State University

Educational Policies Committee

Subcommittee Reports

• Curriculum Subcommittee
• Academic Standards Subcommittee
• General Education Subcommittee

Other Business

• Curriculog New Course Justification Language
• Curriculog R401 Full Template Language

Educational Policies Committee Agenda, December 3, 2020, Utah State University

Educational Policies Committee

Subcommittee Reports

• Curriculum Subcommittee
• Academic Standards Subcommittee
• General Education Subcommittee

Other Business

• Curriculog Justification Language

Curriculum Subcommittee Minutes, December 3, 2020, Utah State University

Educational Policies Committee

Approval of 5 November 2020 Minutes

Program Proposals

• Offer an Associates of Arts in Theatre.
• Create an Institutional Certificate of Proficiency in the area of small firm management.
• Change the name of the minor to be more reflective of the course emphasis and to be more in line with the emphasis that students in the minor.
• Modify the name of the existing degree program in the Management Information Systems and to require that students complete an approved emphasis within the degree program.
• Establish an emphasis in Cybersecurity within the IS undergraduate degree program.
• Establish an emphasis in Data Engineering within …

Curriculum Subcommittee Agenda, December 3, 2020, Utah State University

Educational Policies Committee

Approval of 5 November 2020 Minutes

Program Proposals

• Offer an Associates of Arts in Theatre.
• Create an Institutional Certificate of Proficiency in the area of small firm management.
• Change the name of the minor to be more reflective of the course emphasis and to be more in line with the emphasis that students in the minor.
• Modify the name of the existing degree program in the Management Information Systems and to require that students complete an approved emphasis within the degree program.
• Establish an emphasis in Cybersecurity within the IS undergraduate degree program.
• Establish an emphasis in Data Engineering within …

Aspen Soils Retain More Dissolved Organic Carbon Than Conifer Soils In A Sorption Experiment, Antra Boča, Astrid R. Jacobson, Helga Van Miegroet

Aspen Bibliography

The effect tree species have on soil organic carbon (SOC) has been hotly debated but, so far, few clear patterns have emerged. One example of a differing tree species effect on SOC are aspen forests in North America, which have been found to have more stable SOC than adjacent conifer forest stands. An important source for the formation of stable organo-mineral complexes in soil is dissolved organic carbon (DOC). DOC concentrations in mineral soil are often higher under the thick O-horizons of conifer forests than under aspen forests, but this does not correspond to more stable mineral SOC. This suggests …

Utah State Engineer, Fall 2020, College Of Engineering

College of Engineering Magazines

Annual magazine for the College of Engineering at Utah State University.

Sustaining Wildlife With Recreation On Public Lands: A Synthesis Of Research Findings, Management Practices, And Research Needs, Anna B. Miller, David King, Mary Rowland, Joshua Chapman, Monica Tomosy, Christina Liang, Eric S. Abelson, Richard L. Truex

All Publications

Humans and wildlife interact in multifaceted ways on public lands with both positive and negative outcomes for each group. When managed well, wildlife-based tourism and other forms of recreation can benefit conservation goals. Public lands planners and managers often must decide how to best manage recreational activities and wildlife habitats that overlap spatially and temporally. We conducted an extensive literature review and categorized recreational activity into five types based on the use of motorized equipment, season, and location (terrestrial vs. aquatic), expanding on findings summarized in prior reviews. Our findings provide a reference for public lands planners and managers who …

Maladaptive, Megan Thomas

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

This ceramics MFA thesis presents themes of environmental and emotional transition through metaphorical bird imagery. The artist juxtaposes humans and ravens, who are capable of adapting to changing environments, with songbirds, who are less capable of surviving change. The artist asks viewers to consider the loss of ways of existing in the world that goes hand in hand with loss of biodiversity. Works include sculpture, sculptural and functional vessels, and drawings.

Recombinant Piriform Spider Silk Production, Cole R. Peterson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Spider silks are remarkable biomaterials, possessing a variety of desirable mechanical and material properties. Humans have long-sought to utilize these materials. Spiders produce a range of different types of silks for different purposes, such as web-building, egg casing, and prey swathing. Because spiders are difficult to farm, a synthetic biological approach must be used to produce silk-like proteins. This research is intended to improve the production of piriform, a specific type of spider silk. This was done with targeted-improvements to microbial metabolism and recovery methodologies. The methods developed in this research are useful for other types of silk production and …

Triggerable, Targetable, And Trackable Flavonol-Based Carbon Monoxide-Releasing Molecules, Livia S. Lazarus

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Long known as a toxic gas, carbon monoxide (CO) has been recently redefined as a health beneficial molecule produced endogenously in humans. The biological activity of CO has been extensively examined in inflammatory conditions, vasoprotection, anti-apoptotic and anticancer studies, although the mechanisms of action are still not well defined. Because CO is a gaseous molecule, a straightforward administration would be inhalation. However, this delivery method is limited to use in hospital settings under professional supervision. For improved control over the amount and location of CO delivery, metal-free and light-triggered carbon monoxide-releasing molecules are of particular current interest. Our lab is …

Laboratory Scale Anaerobic Reactors For Bioenergy From Wastes: Materials, Mathematical Models, And Stoichiometry, Yehor Pererva

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Anaerobic processes are being explored for the production of bioenergy in the form of biomethane and biohydrogen in a "waste-to-value" approach that considers wastes as a resource. Laboratory scale Biomethane potential (BMP) tests and Up-Flow Anaerobic Sludge Blanket (UASB) reactors can be used to indicate the potential recovery of bioenergy from industry wastes. The goals of this research were to: (1) conduct a critical review of models for determining biomethane potential, (2) develop a theoretical relationship for stoichiometry for biomethane and biohydrogen from wastes, and (3) develop key design aspects for geometry and infrastructure, including gas-liquid-solid separation in laboratory UASB …

Nodulation And Growth Of Shepherdia × Utahensis ‘Torrey’, Ji-Jhong Chen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Shepherdia ×utahensis ‘Torrey’ (Elaeagnaceae) is a hybrid of two native actinorhizal plants in the Intermountain West, S. argentea (silver buffaloberry) and S. rotundifolia (roundleaf buffaloberry). Due to actinorhizal symbiosis, atmospheric nitrogen (N₂) can be converted to ammonium, a bioavailable form. Actinorhizal plants have great value in sustainable nursery production and urban landscape use. However, nitrogen fertilizer negatively affects the nodulation of actinorhizal plants. As a newly developed hybrid, both the symbiont identity and nodule formation of S. ×utahensis ‘Torrey’ remain largely unknown. Therefore, experiments were conducted to investigate the nodule formation of S. ×utahensis ‘Torrey’ inoculated with field …

Assessment Of Compost On Dryland Wheat Yield And Quality, Soil Fertility And Water Availability In Utah, Kareem A. Adeleke

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In 2014-2016 Kareem Adeleke undertook a graduate project under the supervision of Utah State University (USU) Plants, Soils and Climate professors, Drs. Jennifer Reeve, Astrid Jacobson, and Earl Creech. Organic wheat producers face numerous challenges, such as low soil moisture, soil erosion, and low soil fertility. Organic wheat growers generally do not apply fertilizer due to inability to recoup the costs in the short-term. Compost enhances long-term improvement in soil quality, soil fertility and increase yield in low input environments. Understanding of compost carryover effects in dryland wheat systems is necessary for increased yield that will allow adequate supply of …

Influences Of Forest Edges On The Growth And Health Of Old-Growth Coast Redwood Forests, Cody R. Dangerfield

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Coast redwood (Sequoia sempervirens) is the tallest species in the world, frequently attaining heights greater than 300 ft. The unique characteristics of the redwoods has led to the establishment of several preservation areas including national and state parks. However, abrupt forests edges created by previous logging and landcover changes has left the remaining stands exposed to elevated temperature, sunlight, and wind intensities, thereby making redwoods along the forest edge more susceptible to windthrow and drought stress. Despite the rarity of old-growth coast redwood forests and their ecological and cultural significance, very few studies have investigated how forests edges …

Classification And Prediction Models For Natural Streamflow Regimes In The Arid Southwestern Usa, Angela M. Merritt

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Understanding how natural variation in flow regimes influences stream ecosystem structure and function is critical to the development of effective stream management policies and actions. Spatial variation in flow regimes is well understood for stream reaches in mesic regions, but a more robust characterization of flow regimes in arid regions is needed, especially to support biological monitoring and assessment programs. Methods are specifically needed that can accurately predict the flow regime expected at ungauged reaches. We used long-term (41 y) records of mean daily flow from 287 stream reaches in the arid western USA to develop and compare several alternative …

Effect Of Biocrust Development On Establishment Of Native Plants In A Salt Desert System, Merran Owen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Salt desert shrublands are semiarid, shrub-dominated ecosystems that inhabit salt- affected soils. In Great Basin salt deserts, exotic annual plants are invading and displacing native plants. Low plant productivity and slow population growth of native plants in these ecosystems makes them vulnerable to invasion and limits their ability to compete with invasive plants and return to a natural state. Active revegetation efforts, such as planting and direct seeding of native plants, are often unsuccessful for the same reasons. Biological soil crusts (communities of cyanobacteria, lichen, moss, microfungi and other microorganisms that live on the surface layer of the soil) are …

Understanding The Microbial Population Of Lactococcus Lactis. Subsp. Strains During Cheese Making And Initial Storage, Rhitika Poudel

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Cheddar cheese is manufactured by fermenting milk with lactic acid bacteria added as Lactococcus lactis. The two major subspecies used are lactis and cremoris. Starter culture for this study was prepared and donated by Vivolac Cultures Corporation, Greenfield, Indiana. Cheddar cheese was made in duplicate using two strains of lactis and cremoris. Milled curd was salted with 2.0, 2.4, 2.8, 3.2 and 3.6% salt, pressed for 3 h and stored at 6¬∞C. The curd was sampled during cheese making and after 6d storage. Two different methods of enumeration were employed. One method involved plate counting which only …

Current And Projected Water Reuse For Irrigation In Utah, R. Ryan Dupont, Joan E. Mclean, Randal S. Martin, Courtney Flint, L. Niel Allen, Jennifer L. Weidhaas

Reports

Reuse of treated wastewater for irrigation in some cases can help meet increasing agriculture and urban water demands in Utah. The last report describing existing and potential reuse efforts in Utah was in 2005 (Utah Division of Water Resources, 2005). This report provides information on existing and proposed water reuse and perceptions among water providers and users regarding the use of reclaimed wastewater. Wastewater reuse is one of many practices to conserve water and improve water quality. In a broad sense, water reuse occurs by downstream users, but in some cases, deliberate strategic reuse of water is undertaken to provide …

Collaboration And Reflexivity In Wildland Fire Risk Governance In The Western United States, Brett Alan Miller

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This dissertation presents both quantitative and qualitative analysis on different aspects of wildland fire risk management in the western United States. Each of these chapters is framed by and examines the sociological concept of reflexivity, which describes a process of individual and/or collective reflection. This reflexivity is needed to identify and enact alternative management strategies that contend with the expected increases in the number and severity of wildland fires in the future due to the combined effects of even-aged forest growth after years of timber extraction, a legacy of fire suppression, climate change, and increasing human development in the wildland-urban …

A Systematic Review And Meta-Analysis Of Acceptance And Commitment Therapy In South Korea, Woolee An

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Although psychologists have emphasized the importance of considering clients’ various cultural backgrounds and researching various populations, research is still overly focused on participants from English-speaking countries like the United States and Western countries. Numerous studies evaluating Acceptance and Commitment Therapy (ACT) have been published in South Korea. However, most of the studies are still unknown to English-speaking research communities because of language differences. In order to promote cross-cultural communication of study findings, the current study reviewed treatment research from South Korea.

After searching for Korean ACT studies using Korean electronic databases, 62 studies were selected, and each study’s treatment outcome …

Fruit Tree Responses To Water Stress: Automated Physiological Measurements And Rootstock Responses, William D. Wheeler

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

New orchard plantings utilize trees grafted to dwarfing rootstocks planted close together to facilitate larger harvests. These dwarfing rootstocks have not been comprehensively studied for their ability to withstand drought. This is of special importance in the Intermountain West which has limited rainfall. Additionally, orchard growers face competition for water from a growing population and increased uncertainty in rainfall from climate change. My research examined the use of dendrometers, which measure changes in trunk diameter, and sap flow sensors, which measure how quickly sap moves, as methods to inform growers about tree water status. I also used a weighing lysimeter …

Effects Of Premortem Stress On Heat Shock Protein Abundance, Oxidation, And Color In The Longissimus Lumborum Of Holstein Steers Following Harvest, Reganne K. Briggs

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Consumers consider tenderness and steak color to be two important attributes associated with meat quality. However, inconsistencies in both tenderness and steak color remain despite similar production practices of beef cattle. Stressful events before harvest may impact meat quality by initiating certain pathways such as abundance of heat shock proteins (HSP) and oxidation within the skeletal muscle. Heat shock proteins have been associated with tenderness while oxidation may affect steak color and flavor. In this study, 40 Holstein steers were administered adrenocorticotrophic hormone (ACTH) to mimic a stressful event before harvest. Animals were harvested at different times following the ACTH …