Digital Commons Network^™

Stoichiometry Of Microbial Carbon Useefficiency In Soils, R. L. Sinsabaugh, B. L. Turner, J. M. Talbot, Bonnie G. Waring, J. S. Powers, C. R. Kuske, D. L. Moorhead, Shah J. Follstad

Biology Faculty Publications

The carbon use efficiency (CUE) of microbial communities partitions the flow of C from primary producers to the atmosphere, decomposer food webs, and soil C stores. CUE, usually defined as the ratio of growth to assimilation, is a critical parameter in ecosystem models, but is seldom measured directly in soils because of the methodological difficulty of measuring in situ rates of microbial growth and respiration. Alternatively, CUE can be estimated indirectly from the elemental stoichiometry of organic matter and microbial biomass, and the ratios of C to nutrient-acquiring ecoenzymatic activities. We used this approach to estimate and compare microbial CUE …

Congratulations Class Of 2016 | College Of Engineering, Usu College Of Engineering

College of Engineering News

May 7, 2016 — The College of Engineering congratulates its graduating class of 2016 along with the master's and PhD students who graduated yesterday. Here's the breakdown of our graduates.

• Biological Engineering: 37
• Computer Science: 69
• Computer Engineering: 11
• Civil & Environmental Engineering: 69
• Electrical Engineering: 47
• Environmental Engineering: 9
• Mechanical and Aerospace Engineering: 145

Beyond The Urban Stream Syndrome: Organic Matter Budget For Diagnostics And Restoration Of An Impaired Urban River, Dave M. Epstein, Julia E. Kelso, Michelle A. Baker

Biology Faculty Publications

In response to water quality standard violations linked to excessive organic matter (OM) and a lack of sampling data informing the Total Maximum Daily Load (TMDL), an organic matter budget was created to quantify and identify sources of OM in the lower Jordan River (Salt Lake City, UT). By sampling dissolved, fine and coarse particulate OM, as well as measuring ecosystem metabolism at seven different sites, the researchers aimed to identify the origin of excess OM, and understand pathways by which different size classes of the OM pool are generated. The dissolved fraction (DOM; 94 %) was found to be …

Doctoral Proposal Defense By Anna Doloman | Biological Engineering, Usu College Of Engineering

College of Engineering News

Research hypothesis:

Production of biogas can be enhanced through manual introduction and constant stimulation of key microbial consortia that are responsible for degradation of an organic waste of interest. Bacteria in sediments fromLogan Lagoons have a hidden potential to degrade a wide variety of wastewater contaminants and can serve as a universal inoculum for anaerobic digestion and substrate-adaptation studies. To test the hypothesis, microbial consortia isolated from Logan Lagoons sediments will be analyzed for the specific hydrolytic or methane producing activity and tested for the capabilities to withstand preservation at varying conditions. Increase in production of biogas with addition of …

Dr. Hadi Soroosh Research Presentation | Biological Engineering, Usu College Of Engineering

College of Engineering News

Rise of human population causes an increase of freshwater use and wastewater production worldwide. Wastewater contains various pathogens injurious to health and nutrients (mainly N and P) which would support photosynthesis of chlorophytes and terrestrial plants but can be also an ecological threat to the environment. The conventional wastewater treatment plants (WWTP) require a large amount of energy (for mechanical aeration) and causes emission of CO2 and secondary contamination (by use of flocculants). Microalgae-Bacteria (MaB) biocoenosis can improve the capacity of the treatment system by simultaneous removal of the nutrients and carbon from wastewater with minimum carbon footprint and energy …

Gregory Corso, Erika Beckstrand

ENGL 6350 – Beat Exhibit

Gregory Nunzio Corso - referred to as the "Urban Shelley" of the Beat Generation - lived a life as explosive and controversial as his poetry. Growing up in Greenwich Village, New York, his youth consisted of foster homes, prison, and a brief stay in Bellevue Psychiatric ward. In his twenties, he moved to Paris, France, and founded the Beat Hotel in 1957. While there, he published his poetry through correspondence with City Lights Books in San Francisco via Lawrence Ferlinghetti. His most memorable poem "Bomb" was written in 1958 and provoked mixed reviews when first read in England. Corso was …

Enhancing The Reduction Potential Of Quinones Via Complex Formation, Binod Nepal, Steve Scheiner

Chemistry and Biochemistry Faculty Publications

Quantum calculations are used to study the manner in which quinones interact with proton-donating molecules. For neutral donors, a stacked geometry is favored over a H-bond structure. The former is stabilized by charge transfers from the N or O lone pairs to the quinone’s π* orbitals. Following the addition of an electron to the quinone, the radical anion forms strong H-bonded complexes with the various donors. The presence of the donor enhances the electron affinity of the quinone. This enhancement is on the order of 15 kcal/mol for neutral donors, but up to as much as 85 kcal/mol for a …

Utah State University Commencement, 2016 – Main Campus, Utah State University

Commencement Programs

129^th Annual Commencement of Utah State University.

Frictional Heating Of Fault Surfaces Due To Seismic Slip: Experimental Studies On The Hematite To Magnetite Transition And Federal And Private Landownership's Effect On Oil And Gas Drilling And Production In The Southwestern Wyoming Checkerboard, David W. Jenkins

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

This report is a two-part presentation of research within in the fields of rock mechanics and natural resource economics. The first chapter addresses the use of iron oxide oxidation state and thus mineral transitions as a method for determining the frictional temperature rise achieved during an earthquake. Experimental literature on the hematite to magnetite transition is reviewed. Magnetite from transformed or reacted hematite forms between 300-1240 °C. Design and experimental results for a rotary shear apparatus in which hematite is deformed are reported. The measured coefficient of friction for synthetic hematite gouge is 0.38 ±0.03. The second chapter is an …

Invasive Coqui Frogs Serve As Novel Prey For Birds In Hawaii, And Not As Competitors, Robyn L. Smith

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Puerto Rican coqui frog was introduced the Hawaiian Islands in the late 1980s. Because of the frog's loud call and high abundance, the State of Hawaii has spent millions of dollars on its eradication. Conservationists are also concerned that the frog could negatively impact Hawaii's endemic birds, which are already threatened by a host of other invasive species, either by competing with them for insects or by increasing bird predators. The purpose of this research was to investigate the impacts of coquis on Hawaiian birds. First, we examined overlap in prey resources between coquis and birds, and second, we …

Cultural And Economic Factors That Influence Brazilian Public Opinion On Climate Change, Jenna Williams

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

Climate change is a commons problem of global proportions. The effects of climate change threaten not only the natural world, but also the human systems that we have established (IPCC 2014, 4). The devastating effects of climate change will not be confined to those regions of the world that have contributed the most to this problem. Already, every continent and ocean has been touched by climate change (IPCC 2014, 4).

An Instructional Module On Permaculture Design Theory For Landscape Architecture Students, Keni Althouse

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

Permaculture guides designers to mimic patterns and relationships found in nature. It is a design theory that tailors toward many people’s desire for more sustainable living. This theory offers a unique set of design principles that are very implementable into the design process and could be of great interest to landscape architects.

The purpose of this study was to develop and implement an instructional module for landscape architecture students at Utah State University for two consecutive years. Project-based learning was implemented in order to help students better understand permaculture design theory. Effectiveness of the module was measured through an evaluation …

A Roof Overhead: Creating A Conceptual Long Term Day Facility For Street Children And Orphans In Tehran, Iran, Marjan Safdari

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

With approximately 1.5 million orphans, over 200,000 street children, and 2,500 cases of child violence each year, Iran is not an ideal place for children. Although government groups and non-governmental organizations (NGO) have tried to provide facilities and institutional care centers, there are still many shortages that need to be addressed. Facilities that provide something more than the basic needs of these children are necessary. Orphans and street children face many difficulties during different stages of their lives that cause psychological and social problems for them. In addition, health problems and lack of education are other issues that they face. …

Comparison Of Take Off Kinematics During Loaded Countermovement Jumps In Division One Female Gymnasts And Soccer Athletes, Ryan Moreau

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

Purpose: The purpose of this study was to compare takeoff kinematics of incrementally loaded countermovement jumps (CMJ) in water and land in female gymnasts and soccer athletes.

Methods: 24 Division I student athletes (12 gymnastics, 12 soccer) volunteered for this study. Subjects performed CMJ on land and water at a level of the xiphoid process without an arm swing. CMJs with loads of body weight (BW), 10% BW, 20% BW, and 30% BW were performed three times per trial at each load. 15 kinematic variables related to the lower extremity were examined.

Results: For environment, significant (p less than …

Effect Of Increasing External Loads On Countermovement Jump Landing Kinetics Between Ncaa Di Women's Soccer And Gymnastics On Land Vs In Water, Paul Bryan Beachem Iv

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

The purpose of this study was to compare the effect of differing loads on landing kinetics on land, and in aquatic conditions. Twenty four NCAA DI athletes volunteered for this study twelve female soccer players and twelve female gymnasts. Participants performed three jumps with four differing external loads in both land and aquatic environments. External loads were body weight (BW), BW*1.1, BW*1.2, BW*1.3 and applied via a weighted vest. All external loads for both conditions were added based upon participants BW on land. Kinetic measures were peak force, rate of force development, and impulse of the landing phase of the …

An Examination Of How Qualitatively Different Delayed Outcomes Are Discounted, Jonathan E. Friedel

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Jonathan E. Friedel, a graduate student in the Experimental and Applied Psychological Sciences program at Utah State University, will complete this dissertation as part of the requirements of the degree of Doctor of Philosophy in Psychology.

Outcomes that are received far in the future are less valuable than outcomes that are to be received more proximally. Delay discounting describes how outcomes in the future lose value. The goal of this dissertation is to examine how people discount different types of delayed outcomes. Two experiments examine the value of a wide
variety of delayed outcomes for cigarette smokers and nonsmokers. These …

An Economic Analysis Of Factors Affecting Pre-Weaned Dairy Calf Growth And Profit Optimization In Dairy Calf Operations, Vincent T. Hess

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study was an extension of a study submitted in April 2014 by Sheldon D. Holt entitled “Ambient Temperature, Calf Intakes, and Weight Gains on Preweaned Dairy Calves”.

A major component in a profitable dairy operation is the raising of female calves as replacement heifers; but since no direct income is generated by calf raising alone, it is often overlooked as a potential profit area on a dairy farm. Calf management practices that ultimately impact milk productivity and reproductive performance during a heifer’s lifetime begin at birth. This study examines the effect of calf starter intake on calf growth, measuring …

Effect Of Chronic Administration Of Oxytocin On Corpus Luteum Function In Cycling Mares, Katherine Clissold Parkinson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Undesirable and variable behavior in mares related to the reproductive cycle is a common issue reported in the equine industry, especially for female horses in a performance setting. These behaviors can interfere with and decrease, overall performance. The objective of this study was to determine if administration of 60 units of the hormone oxytocin once daily for 29 days, regardless of when treatment was initiated during the estrous cycle, would induce prolonged corpus luteum function in cycling mares. Mares were randomly assigned to two groups: 1) saline-treated control (n=7) and 2) oxytocin-treated (n=9). Control mares received 3 cc saline and …

Effects Of Carboxymethyl-Lysine In Heat Processed Foods On The Plasma Metabolome In Mice, Zhou Fang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Carboxymethyl-lysine (CML), an advanced glycation end product (AGEs), is formed during the cooking process and may induce toxic effects on human health. The effect of dietary CML on the plasma metabolite profile was investigated. Mice were fed with one of five different diets: AIN93 diet (negative control), a 45% kcal from fat Diet Induced Obesity diet (DIO; positive control); CML0, TWD (Total Western Diet) with low CML; CML1, TWD with medium CML, and CML2, TWD with high CML for 8 weeks, and the plasma metabolome was determined by Gas Chromatography-Mass Spectrometry (GC-MS). In addition quantitative analysis of plasma glucose level …

Effects Of Feeding High-Moisture Corn Grain With Slow-Release Urea In Dairy Diets On Lactational Performance, Energy And Nitrogen Utilization, And Ruminal Fermentation Profiles By Lactating Cows, Braden M. Tye

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The objective of this experiment was to determine if nutrient utilization and energy partitioning by lactating dairy cows would differ in response to dietary corn grain (CG) types [steam-flaked corn (SFC) vs. high-moisture corn (HMC)] and to test if the types of CG would interact with slow-release urea (SRU) on lactational performance and energy utilization. Eight multiparous Holstein cows (32 ± 8.2 days-in-milk) were used in a duplicated 4 × 4 Latin square with one square consisting of ruminally cannulated cows. A 2 × 2 factorial arrangement was used to test 4 dietary treatments: SFC without SRU, SFC with SRU, …

Computational Studies Of Microscopic Superfluidity In 4he Clusters, Angeline R. Wairegi

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The onset of microscopic superfluidity has been reported in ultracold droplets of bosons (⁴He atoms or para-H₂ molecules) containing a variety of molecular dopants. The physics of these droplets involve both Bose-Einstein condensation (BEC) and superfluidity. The two phenomena, while closely related, are not exactly the same. Superfluidity is fundamentally a microscopic effect and thermodynamic limit is necessary; it is still remarkable, though, that the signature of superfluidity has been reported in doped droplets consisting of as few as 4 ⁴He atoms. The studies presented here adopt a molecular vantage point to investigate the quantum mechanics …

Engineering Of Polyketide Biosynthetic Pathways For Bioactive Molecules, Siyuan Wang

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

This study is focused on engineering of natural product biosynthetic pathways for efficient production of pharmaceutically important molecules or generation of new bioactive molecules for drug development.

Plant natural products are an important source of therapeutics, such as paclitaxel (anticancer) and artemisinin (anti-malarial). Production of plant natural products relies on conventional plant cultivation and solvent extraction, which is time-consuming and cost-ineffective. This work built a biosynthetic platform in Escherichia coli using seven biosynthetic genes from plants and bacteria, which were used to make valuable compounds such as the strong antioxidant resveratrol and anti-inflammatory agent curcuminoids. Through different combinations of these …

A Spatiotemporal Mountain Pine Beetle Outbreak Model Predicting Severity, Cycle Period, And Invasion Speed, Jacob P. Duncan

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The mountain pine beetle (MPB, Dendroctonus ponderosae), a tree-killing bark beetle, has historically been part of the normal disturbance regime in lodgepole pine (Pinus contorta) forests. In recent years, warm winters and summers have allowed MPB populations to achieve synchronous emergence and successful attacks, resulting in widespread population outbreaks and resultant tree mortality across western North America. We develop an age-structured forest demographic model that incorporates temperature-dependent MPB infestations: the Susceptible-Infested-Juvenile (SIJ) model. Stability of equilibria is analyzed as a function of population growth rates, and indicates the existence of periodic outbreaks that intensify as growth rates …

Aligning Conservation Goals And Management Objectives For Bonneville Cutthroat Trout (Oncorhynchus Clarki Utah) In The Logan River, Utah, Harrison E. Mohn

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Rivers are often managed without informed knowledge of how sportfish use different areas of the river to reproduce, and rarely take into account the relationship between fish movement and how they are distributed within the river when making management decisions. The population of native Bonneville cutthroat trout (Oncorhynchus clarki utah) within the Logan River is the largest documented population remaining for this imperiled species, and still maintains extremely high numbers of fish in the upper river. Currently, fishing is not allowed in the upper 20 kilometers of the Logan River watershed during spawning, based on the assumption that …

Spatial Ecology And Captive Behavior Of Rehabilitated Black Bears In Utah, Patrick J. Myers

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Animal movements and space use are fundamental components of life and play integral roles in organismal fitness, population dynamics, and the ecology and evolution of species. The heterogeneous distribution of resources and the movement required to access them, results in ecology being a fundamentally spatial concept. Thus, elucidating animal-habitat relationships is a central focus of wildlife ecology and conservation. I utilized GPS technology, resource selection functions, and generalized linear mixed models, to investigate the immediate post-release movements, denning chronology, release-site fidelity, and season-delineated movements, home ranges, and resource use for six, orphaned and rehabilitated black bears (Ursus americanus). …

The Role Of A Beaver In Shaping Stream Channel Complexity And Thermal Heterogeneity In A Central Oregon Stream, Florence Consolati Machen

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

North American beaver (Castor canadensis) alter stream channel morphology, hydrologic processes, and instream temperature regimes, yet there are few data driven studies that investigate the effect of beaver on stream channel complexity and stream temperature regimes across multiple spatial and temporal scales. The use of beaver as a restoration tool is a method at the forefront of watershed restoration, however little is known about the implications of this restoration technique, particularly with regard to its ability to alter stream channel complexity and stream temperature. This thesis addresses two knowledge gaps with the following objectives: to quantify the role …

The Eyes Have It: Eye Tracking Data Visualizations Of Viewing Patterns Of Statistical Graphics, Trent Fawcett

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

As statistical graphics continue to expand to manage an ever growing amount of diverse data, a need to evaluate the effectiveness of graphics, both basic and complex, has arisen. Technological advancements have given a means to evaluate the effectiveness of graphs and graphical components through eye tracking systems. Eye tracking systems are likewise in need of software that will enable easy evaluation and exploration of data. The focus of this Master's Report is to evaluate the dual solution. An exploration of an eye tracker setup is made, with extensive consideration of testing statistical graphics providing a basis for continued research …

The Role Of Man's Best Friend: Assessing The Cultural Liminality Of The Canis Lupus Familiars And Its Influence On Human Societies, Julianne L. D'Amico

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

This project combines history and folklore to illuminate the concept of liminality and the human-dog relationship as it has evolved since the species domestication. The lore highlights the permanent liminality of the dog, the use of the species as remedies in Folk Medicine, and the dog's shift from secondary participant to active agent in contemporary medical fields. The informant data and the context of the lore provide the basis for a historical analysis on how the human-dog relationship has evolved, from the past to the present, and inform how this relationship will progress into the future. Furthermore, the lore supports …

Masculinities And Christian Metal: A Critical Analysis Of August Burns Red Lyrics, Brian W. Bowler

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

The purpose of this thesis is to examine and analyze the lyrics of a Christian metal band through the lens of men and masculinities. Heavy metal music is known for its controversial and transgressive elements in its music, lyrics, and image. Through their transgressive performances, metal musicians challenge power structures informed by hegemonic masculinity. Christian metal musicians perform what Moberg calls a "double-controversy" or a double-challenge to hegemonic masculinity, as they transgress the traditions and hegemonic masculinity of the metal scene.

While many metal bands write lyrics about social issues, it is not typical for a Christian metal band to …

Community Renewable Energy: The Potential For Energy Generation On Public Land In Cedar City, Utah, Betsy Byrne

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

As the world's population rises and becomes increasingly more urbanized, there is a greater demand on our resources. Current energy production practices are based on resources with finite supplies and are associated with environmental impacts such as greenhouse gas and particulate emissions, water resource use, and resource extraction. In contrast, renewable energy production is based on free, continually replenished sources with relatively few environmental impacts. Distributed renewable energy generation involves producing energy close to the point of consumption. The distributed generation model increases energy autonomy at the local level.

Distributed renewable energy generation is fairly common at point of use. …