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Biotic Integrity In The Northwestern Great Plains And Mechanisms Regulating Stream Condition In South Dakota, Chad Kaiser
Biotic Integrity In The Northwestern Great Plains And Mechanisms Regulating Stream Condition In South Dakota, Chad Kaiser
Electronic Theses and Dissertations
Anthropogenic disturbance of streams can alter biotic integrity in various ways. Some degradation is easy to classify and monitor, others such as habitat impairment may be less easy to quantify. The Index of Biotic Integrity (IBI) is a unique method of assessing the aquatic health of an ecosystem. Beginning in 2010 the South Dakota Department of Environment and Natural Resources (SD DENR) began implementing biological monitoring on wadeable streams by developing an IBI for the Northern Glaciated Plains ecoregion in eastern SD (Krause et al. 2013). Prior to this survey the condition of the majority of SD’s streams was unknown. …
Heterogeneous Nitrogen Losses: Cost-Effectiveness Analysis Of Changes In Management Across South Dakota, Archibold Quaye
Heterogeneous Nitrogen Losses: Cost-Effectiveness Analysis Of Changes In Management Across South Dakota, Archibold Quaye
Electronic Theses and Dissertations
The loss of nitrogen fertilizer into the atmosphere and waterways is of increasing concern for citizens and policy makers. This is particularly relevant for hypoxia in rivers, lakes, and oceans, but also relevant for policy makers in reducing the increasing concentration of greenhouse gases (GHG) in the atmosphere. GHGs trap heat in the atmosphere and include: carbon dioxide, methane, nitrous oxide and fluorinated gases. Overall, the estimated contribution from the agricultural sector to GHG emissions was 9% in 2013 (EPA, 2013). Further, the addition of nitrogen to the soil through the use of synthetic fertilizers is a main contributor to …
Identification Of Physiological And Morphological Traits Governing High Water Use Efficiency In Alfalfa, Krishna Ghimire
Identification Of Physiological And Morphological Traits Governing High Water Use Efficiency In Alfalfa, Krishna Ghimire
Electronic Theses and Dissertations
Alfalfa is an important forage crop worldwide. Being deep-rooted, N2-fixing and high yielding, alfalfa has great economic, ecological and nutritional benefits. While alfalfa is a high yielding crop, its high productivity depends on irrigation water in many areas and consumes the greatest amount of water among all the major crops. With a growing demand for water resources due to an increase in human population and industrial water use, plus frequent drought due to climate change, irrigation water has become increasingly scarce and expensive. To sustain high production of alfalfa with limited water resource, alfalfa cultivars with improved water use efficiency …
Exploring The Relationship Between Immediacy Behaviors And Student Motivation In Engineering Classrooms: Immediacy As A Cause Of Motivation, Andrea N. Barahona Guerrero
Exploring The Relationship Between Immediacy Behaviors And Student Motivation In Engineering Classrooms: Immediacy As A Cause Of Motivation, Andrea N. Barahona Guerrero
Electronic Theses and Dissertations
Instructor immediacy is an essential characteristic of effective instructors. Although instructional communication has done extensive research on the impact of immediacy behaviors on students, there is little available research observing immediacy behaviors as predictors of motivation on engineering students. As a result, this study examined the impact of engineering instructors’ use of immediacy behaviors on engineering students’ motivation. The results indicated that verbal immediacy predicted engineering student motivation. The thematic analysis revealed that when students perceived their instructors as helpful, students’ motivation to learn and ask more questions increased. The thematic analysis also observed that when instructors seemed unapproachable, students …
The Synthetic Biology Of N2-Fixing Cyanobacteria For Photosynthetic Terpenoid Production, Charles T. Halfmann
The Synthetic Biology Of N2-Fixing Cyanobacteria For Photosynthetic Terpenoid Production, Charles T. Halfmann
Electronic Theses and Dissertations
In the last few decades, concerns over global climate change, energy security, and environmental pollution have been rising. To overcome these challenges, the concept of “-nth generation” biofuels has emerged as a strategy to convert solar radiation into fuels and bulk industrial chemicals for societal use, while decreasing our consumption of nonrenewable energy sources. Nitrogen-fixing cyanobacteria hold a distinct advantage in biofuel production over plants, given their ability to convert sunlight, air (CO2 and N2), and mineralized water to energy-dense carbon molecules, as well as fix atmospheric nitrogen gas into ammonia for metabolism. Engineered cyanobacteria with …
The Lived Experience Of Retired College Athletes With A History Of 1 Or More Concussions, Rebecca Cover
The Lived Experience Of Retired College Athletes With A History Of 1 Or More Concussions, Rebecca Cover
Electronic Theses and Dissertations
CONTEXT: Concussions remain misunderstood, underreported, and undiagnosed. While most concussion symptoms resolve within 2 weeks, some patients experience persistent symptoms which adversely affect physical, emotional, social, and/or cognitive functioning. Minimal evidence delineating the effect of concussions on recently retired college athletes currently exists. OBJECTIVE: To examine the lived experience of retired collegiate athletes with a history of 1 or more concussions to discern individual concussion histories, knowledge and perceptions of concussions, and post-concussion quality of life. DESIGN: Qualitative.
SETTING: Personal life after retirement from competitive athletics.
PATIENTS or OTHER PARTICIPANTS: Former Division I athletes (n=14) 1-5 years post-athletics retirement with …
Evaluation Of Supplementing Brewer's Yeast To Lactating Dairy Cows, Taylor Christine Aubrey
Evaluation Of Supplementing Brewer's Yeast To Lactating Dairy Cows, Taylor Christine Aubrey
Electronic Theses and Dissertations
Probiotics have been used as effective, natural feed additives in the dairy industry to improve animal health and performance. Yeast product supplementation can be beneficial in the diet of lactating dairy cows by increasing feed efficiency, alleviating disease, and improving production performance under heat stress. Objectives of this study were to evaluate supplementing a concentrated brewer’s yeast in the ration of a lactating dairy cow by assessing milk yield and composition, blood metabolites, rumen fermentation, and feed intake and efficiency. We hypothesized that diets containing a concentrated brewer’s yeast supplement would increase milk and component yields, benefit rumen fermentation, and …
Development Of Heterogeneous Catalysts For Upgrading Biomass Pyrolysis Bio-Oils Into Advanced Biofuels, Shouyun Cheng
Development Of Heterogeneous Catalysts For Upgrading Biomass Pyrolysis Bio-Oils Into Advanced Biofuels, Shouyun Cheng
Electronic Theses and Dissertations
The massive consumption of fossil fuels and associated environmental issues result in an increased interest in alternative resources such as biofuels. The renewable biofuels can be upgraded from bio-oils that are derived from biomass pyrolysis. Catalytic cracking and hydrodeoxygenation (HDO) are two most promising bio-oil upgrading techniques for biofuel production. Heterogeneous catalysts are essential for upgrading bio-oil into hydrocarbon biofuel. Although some progresses have been made, the cost and effectiveness of catalysts still remain challenges. The main objective of this study was to develop efficient heterogeneous catalysts for upgrading bio-oils into advanced hydrocarbon biofuel with low costs. In catalytic cracking, …
The Influence Of Chromium Supplementation On The Insulin Pathway, Carcass Traits, And Meat Quality Of Feedlot Steers, Heather Rode
The Influence Of Chromium Supplementation On The Insulin Pathway, Carcass Traits, And Meat Quality Of Feedlot Steers, Heather Rode
Electronic Theses and Dissertations
Chromium supplementation (Cr) can increase efficiency of growth in livestock by amplifying insulin signaling. Previous research showed Cr increases nutrient utilization and changes in muscle growth and fat deposition. Therefore, the objective of this research was to determine how Cr affects carcass traits, meat quality, and the insulin pathway in feedlot steers. Calf-fed steers were allotted to 0 ppb (CON) or 400 ppb Cr propionate (Cr400) for 210d in experiment 1. Two longissimus muscle (LM) biopsies were collected to examine protein abundance and gene expression after adaptation to a terminal implant and after adaption to ractopamine hydrochloride (RAC). A follow …
An Evaluation Of The Relationship Between Cooking And Wellness Behaviors In College Students, Andrea Hanson
An Evaluation Of The Relationship Between Cooking And Wellness Behaviors In College Students, Andrea Hanson
Electronic Theses and Dissertations
Background: Few studies have examined the relationship between cooking and wellness behaviors in college students.
Objective: Determine the association between cooking, wellness behaviors, fruit and vegetable (FV) intake and body mass index (BMI) in college students.
Design and Participants: A cross-sectional analysis was conducted using baseline data a multi-state, Community-Based Participatory Research project aimed at preventing weight gain in first-year college students. Physical activity (PA), cooking (type, frequency and confidence), intention for meal planning (MP), mealtime behaviors, and cups of FV, were measured using validated survey tools. BMI was calculated from measured height and weight. Study participants were first-year students …
Development And Application Of A Fish-Based Index Of Biotic Integrity For Lakes In Eastern South Dakota, Daniel T. Nelson
Development And Application Of A Fish-Based Index Of Biotic Integrity For Lakes In Eastern South Dakota, Daniel T. Nelson
Electronic Theses and Dissertations
The Index of Biotic Integrity (IBI) was developed to summarize the impact of watershed and water quality degradation to biotic communities and help to provide a more complete picture of water quality changes that are not captured in traditional physical and chemical measurements. In 2014, nearly 15% of South Dakota lakes did not meet their designated beneficial uses based on water quality measures but the impacts to the fish communities are unknown. The goal of this study was to develop a fish-based IBI for eastern South Dakota lakes by addressing three specific objectives:
1) Determine whether an IBI could be …
Dissecting The Histone-Binding Mechanism Of A Phd Finger Subtype, Daniel Boamah
Dissecting The Histone-Binding Mechanism Of A Phd Finger Subtype, Daniel Boamah
Electronic Theses and Dissertations
Disordered tails of histones are critical information retrieval hub and thus, aberrations in the flow of information through these hubs are associated with a number of pathological consequences in human. Mechanism for retrieval of information from these hubs is achieved by protein-protein interaction, i.e. proteins dock onto histone tails to initiate chromatin signaling. Eukaryotes have a number of small peptide binding domains that have evolved to specifically interact with histone tails, and these domains called histone readers as they read the information encoded on histone tails. Plant homeodomain (hereafter PHD) finger, a binucleated zinc finger, family is one such histone …
Green Thermosetting Factory: Novel Star-Shaped Bio-Based Systems And Their Thermosetting Resins; Synthesis And Characterization, Arash Jahandideh
Green Thermosetting Factory: Novel Star-Shaped Bio-Based Systems And Their Thermosetting Resins; Synthesis And Characterization, Arash Jahandideh
Electronic Theses and Dissertations
Increasing attentions toward sustainable development, economic and environmental issues have led to many attempts at replacing the petroleum-based materials with renewables. Substitution of petroleum-based platforms with green alternative technologies is beneficiary in different ways. Using bio-renewables reduces the dependency of the national plastic industry to the petroleum resources and substantially promotes the environmental profile and sustainability of the product. It is expected that the emergence of the corn-based thermosetting industry generates substantial profits for the corn production sector. Developments in the emerging biobased thermosets are spectacular from a technological point of view. However, there are still several disadvantages associated with …
Using Rna Seq To Define Genes And Pathways Affecting Salmonella Vaccine Response In Beef Cattle, Sara Awrahman
Using Rna Seq To Define Genes And Pathways Affecting Salmonella Vaccine Response In Beef Cattle, Sara Awrahman
Electronic Theses and Dissertations
A Salmonella siderophore receptor and porin (SRP) proteins vaccine is an intervention strategy to control Salmonella burden in cattle. The vaccine works by stimulating immunity to produce antibodies against bacterial SRPs as siderophore molecules play a major role in transporting iron to bacteria. Blocking iron uptake system by antibodies causes death of bacterial cells. The vaccine can also be useful to protect humans against salmonellosis, which causes high rates of illness and death annually, by reducing shedding of Salmonella in the feces of cattle. Though other researchers have evaluated efficacy and immune response of this Salmonella SRP vaccine, genes …
Normalization Of Pseudo-Invariant Calibration Sites For Increasing The Temporal Resolution And Long-Term Trending, Harika Vuppula
Normalization Of Pseudo-Invariant Calibration Sites For Increasing The Temporal Resolution And Long-Term Trending, Harika Vuppula
Electronic Theses and Dissertations
Given their low level of temporal, spatial, and spectral variability, Pseudo-Invariant Calibration Sites (PICS) have been increasingly desired as data sources for radiometric calibration of Earth imaging satellite sensors. The temporal resolution for PICS data acquired by any sensor is limited by the amount of time required for it to make subsequent passes over the site. Consequently, for any given PICS, it can take many years of imaging to develop a sufficient amount of cloud-free data to perform radiometric calibration; this can be especially problematic for sensors in their early years after launch. This thesis presents techniques to combine Landsat-8; …
Analysis Of Mechanical Properties Of Alternative Timber Beams For A Native American Earth Lodge, Freddy E. Moran
Analysis Of Mechanical Properties Of Alternative Timber Beams For A Native American Earth Lodge, Freddy E. Moran
Electronic Theses and Dissertations
To fill a gap in the literature, this thesis explored the mechanical properties for alternative roof beams of a historic Native American Hidatsa earth lodge. The research demonstrates that in those alternative beams, when Moisture Content (MC) increases, Modulus of Elasticity (E) decreases and deflection increases. The procedure included obtaining dimensions for alternative beams from scaled sketches created by ethnographers and informants who recorded an actual Hidatsa earth lodge in the early 1800s (confirmed by other sources) although no material properties studies have resulted. After calculating loads, the variations in the E were determined using an equation. Using linear analysis, …
Persistent Problems In Modified Divine Command Theory, Brandon Trey Jackson
Persistent Problems In Modified Divine Command Theory, Brandon Trey Jackson
Electronic Theses and Dissertations
I argue that there are persistent problems in contemporary modifications of divine command theory. Divine command theory states that God’s commands are moral obligations only because he commands them. Modified divine command theories attempt to add to or amend the justification for God’s commands being moral obligations. The problem is that they aren’t successful at escaping the Euthyprho dilemma, which states the following of God’s commands: they are either a) moral obligations because they are commanded by God, or they are b) commanded by God because they are moral obligations. Modified divine command theories attempt to navigate between these two …
The False Intent-Purpose Distinction In Textualism, Aaron Graham
The False Intent-Purpose Distinction In Textualism, Aaron Graham
Electronic Theses and Dissertations
Textualism is the theory of legislative interpretation championed most famously by the late Supreme Court Justice Antonin Scalia. Textualism adopts twin interpretive commitments: (1) the meaning of a legislative text should be discerned by application of long-established canons of construction, the most important of which is that the text means what its words convey; and (2) a legislative text means what it meant at the time it was enacted. This paper examines the first principle, and in particular Scalia and treatise coauthor Bryan A. Garner’s belief that it mandates that judges forswear any consideration of legislative intent. This paper assess …
Final Muon Cooling For A Muon Collider, John Gabriel Acosta Castillo
Final Muon Cooling For A Muon Collider, John Gabriel Acosta Castillo
Electronic Theses and Dissertations
To explore the new energy frontier, a new generation of particle accelerators is needed. Muon colliders are a promising alternative if muon cooling can be made to work. Muons are 200 times heavier than electrons, so they produce less synchrotron radiation, and they behave like point particles. However, they have a short lifetime of 2.2 μs and the beam is more difficult to cool than an electron beam. The Muon Accelerator Program (MAP) was created to develop concepts and technologies required by a muon collider. An important effort has been made in the program to design and optimize a muon …
Meaning In Life As A Moderator Of Resilience And Traumatic Stress: A Study Of Protective Factors And Sex Differences In A Sample Of Mississippi Coastal Residents Seeking Mental Health Services After The Deepwater Horizon Oil Spill, Bethany Jane Aiena
Electronic Theses and Dissertations
In April of 2010, the Deepwater Horizon oil platform exploded, releasing millions of barrels of crude oil into the Gulf of Mexico, becoming the largest oil spill in U.S. history. Disasters often lead to a decrease in psychological well-being for those affected by the disaster. Positive psychological constructs such as resilience and perceived meaning in life have been shown to be significant protective factors against the negative psychological effects of a disaster. Utilizing a sample of 1119 adults seeking mental health services along the coast of Mississippi after the spill, the current study aimed to investigate the relationship between these …
Sex-Related Alcohol Expectancies And Perceptions Of Sexual Assault: Recognition Response Latency And Blame Attribution, Walter Thomas Rueff
Sex-Related Alcohol Expectancies And Perceptions Of Sexual Assault: Recognition Response Latency And Blame Attribution, Walter Thomas Rueff
Electronic Theses and Dissertations
Alcohol use has often been linked with sexual violence. Pumphrey-Gordon and Gross (2007) note that “among the numerous factors that have been associated with the occurrence of sexual assault, the use of alcohol is the most reliable” (p. 476). Novel autonomy places undergraduates at a nexus alcohol use and sexual experiences, as well as the potential negative consequences of both. This confluence of factors contributes to proportionally higher rates of risky sexual behaviors and sexual assaults among undergraduates. Alcohol expectancies, beliefs about the outcomes and consequence of drinking alcohol, have been shown to influence drinking behaviors, which have, in turn, …
On The Relationship Between Meaning And Prejudice: Examining Self-Transcendence And Value-Behavior Consistency In A Sample Of College Students, Ivonne Andrea Florez
On The Relationship Between Meaning And Prejudice: Examining Self-Transcendence And Value-Behavior Consistency In A Sample Of College Students, Ivonne Andrea Florez
Electronic Theses and Dissertations
The present study examined whether the value of self-transcendence and the degree to which individuals report behaving consistently with their values (value-behavior consistency) impact the association of meaning and racial prejudice against White and Black individuals. The study was conducted with a college population from a university located in the southern United States. The final sample was composed of 362 people, 281 females and 81 males, with a majority of participants self-identifying as White (73.8%). To assess meaning, the Purpose in Life test – Short Form (PIL-SF) and the Meaning in Life Questionnaire Presence subscale (MLQ-Presence) were administered. Social judgment …
Object Of Your Rejection: The Symbolic Annihilation And Recuperation Of Queer Identities In Country Music, Lauren Veline
Object Of Your Rejection: The Symbolic Annihilation And Recuperation Of Queer Identities In Country Music, Lauren Veline
Electronic Theses and Dissertations
This thesis addresses the double-marginalization of white queers living in Bible Belt communities by examining the symbolic annihilation of queer identities in country music. Bible Belt queers face unique obstacles and have different needs than queer communities elsewhere due to the cultural context of their communities. The urban-centric (“metronormative”) standards of queer identity and visibility presented in the media do not translate to their lived experiences. Moreover, while white, non-urban southerners possess a source of popular-media expression through country music, queer identities are noticeably absent. The invisibility of Bible Belt queers in the media perpetuates a cycle of hostility and …
Native Speaker Stance-Taking In A Multinational Conference Call, Vanessa Cristina Revheim Cunha
Native Speaker Stance-Taking In A Multinational Conference Call, Vanessa Cristina Revheim Cunha
Electronic Theses and Dissertations
The present study examines the stance-taking measures of a native speaker director in a conference call, focusing on social contexts where foreign speakers are also involved. The transcript used in this study is comprised of a global departmental team meeting call from a multinational company based in Austin, TX. Subjects are native and nonnative co-workers or specialists in the field of home vacation rental and a native director. The analysis aims at finding what different stance-taking measures are enacted by the director throughout this conference call, what linguistic strategies are used to claim authority, and whether different strategies or stances …
Sicilians In Detroit: How Do They Speak?, Giovanna Brunetti
Sicilians In Detroit: How Do They Speak?, Giovanna Brunetti
Electronic Theses and Dissertations
The present study focuses on the linguistic analysis of the varieties of the Sicilian dialect spoken in the city of Detroit, Michigan. The city has witnessed, starting from the early 19th century, a steady process of immigration and settlement involving speakers mainly arriving from the two Sicilian coastal towns of Terrasini and Cinisi. The varieties they speak appear to have never been the subject of systematic observation. The present study, thus, focuses on the preservation, attrition and/or loss of the phonological features of the Sicilian dialect spoken by a community of Sicilian immigrants of different generations living in Detroit. Native …
Conditions Responsible For The Success Of Carnivorous Plants In Nutrient-Poor Wetlands, Matthew John Abbott
Conditions Responsible For The Success Of Carnivorous Plants In Nutrient-Poor Wetlands, Matthew John Abbott
Electronic Theses and Dissertations
Despite the vast array of past research focused on carnivorous plants, few studies have investigated the ecological interactions between carnivorous and non-carnivorous plant species. I addressed the following three questions: (1) does niche complementarity promote coexistence between fire-adapted carnivorous and non-carnivorous species? (2) do carnivorous plants rely on both leaf traps and arbuscular mycorrhizal fungi to access different nutrients that are in high demand after fire in nutrient poor bogs? (3) why are carnivorous plants largely absent from nutrient-rich wetlands? I addressed the first question by examining the three-way interacting effects of fire, prey-derived nutrient availability, and root competition from …
Biphasic Cellulose Acetate/Rtil Membranes And Functionalized Graphene Adsorbents For Natural Gas Processing: Experimental And Molecular Simulation Studies, Amir Khakpay
Electronic Theses and Dissertations
In this dissertation, gas separation using membranes is investigated for natural gas upgrading. The main objectives of this study are separation of high value hydrocarbons such as propane (c3h8) from natural gas and carbon dioxide (co2) separation from light gases such as nitrogen (n2) and methane (ch4). To achieve these goals, supported ionic liquid membranes (silms), biphasic membranes, and nanoporous graphene (npg) and graphene oxide (npgo) membranes are studied. Biphasic membranes are proposed to overcome silms issues for gas separation. The major issues with silms are low room temperature ionic liquid (rtil) content and instability at high cross-membrane pressure. For …
A Probabilistic Approach To Multiple-Instance Learning, Silu Zhang
A Probabilistic Approach To Multiple-Instance Learning, Silu Zhang
Electronic Theses and Dissertations
This study introduced a probabilistic approach to the multiple-instance learning (mil) problem. In particular, two bayes classication algorithms were proposed where posterior probabilities were estimated under dierent assumptions. The rst algorithm, named instance-vote, assumes that the probability of a bag being positive or negative depends upon the percentage of its instances being positive or negative. This probability is estimated using a k-nn classication of instances. In the second approach, embedded kernel density estimation (ekde), bags are represented in an instance induced (very high dimensional) space. A parametric stochastic neighbor embedding method is applied to learn a mapping that projects bags …
Accelerating The Discontinuous Galerkin Cell-Vertex Scheme (Dg-Cvs) Solver On Cpu-Gpu Heterogeneous Systems, Xiaoqi Hu
Electronic Theses and Dissertations
Dg-Cvs (Discontinuous Galerkin Cell-Vertex Scheme) is an efficient, accurate and robust numerical solver for general hyperbolic conservation laws. It can solve a broad range of conservation laws such as the shallow water equation and Magnetohydrodynamics equations. Dg-Cvs is a Riemann-Solver-free high order space-time method for arbitrary space conservation laws. It fuses the discontinuous Galerkin (dg) method and the conservation element/solution element (ce/se) method to take advantage of the best features of both methods. Thanks to the ce/se method, the time derivative of the solution is treated as an independent unknown, which is amendable to gpu's parallel execution. In this thesis, …
Deployment, Coverage And Network Optimization In Wireless Video Sensor Networks For 3d Indoor Monitoring, Tisha Lafaye Brown
Deployment, Coverage And Network Optimization In Wireless Video Sensor Networks For 3d Indoor Monitoring, Tisha Lafaye Brown
Electronic Theses and Dissertations
As a result of extensive research over the past decade or so, wireless sensor networks (wsns) have evolved into a well established technology for industry, environmental and medical applications. However, traditional wsns employ such sensors as thermal or photo light resistors that are often modeled with simple omni-directional sensing ranges, which focus only on scalar data within the sensing environment. In contrast, the sensing range of a wireless video sensor is directional and capable of providing more detailed video information about the sensing field. Additionally, with the introduction of modern features in non-fixed focus cameras such as the pan, tilt …