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Graduate Theses, Dissertations, and Problem Reports (ETD)

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Relating Sonic Velocities, Minimum Horizontal Stress, And Natural Fracture Distribution To Stimulation Efficiency During Completion Of The Marcellus Shale Mip-3h Unconventional Well, West Virginia, Usa, Kaitlin Gayle Evans Jan 2020

Relating Sonic Velocities, Minimum Horizontal Stress, And Natural Fracture Distribution To Stimulation Efficiency During Completion Of The Marcellus Shale Mip-3h Unconventional Well, West Virginia, Usa, Kaitlin Gayle Evans

Graduate Theses, Dissertations, and Problem Reports (ETD)

Log data from the Marcellus Shale Energy and Environment Laboratory (MSEEL) was acquired along the lateral of the MIP-3H well. This unconventional shale-gas well was completed within the Marcellus Shale just above the Cherry Valley Limestone, a thin limestone member separating organic rich units of the Marcellus. The geomechanical moduli, Poisson’s Ratio (PR) and Young’s Modulus (YME), were generated using compressional and shear sonic logs to indicate zones of increasing brittleness for each of the 28 stages along the 6124 ft. (1867m) horizontal lateral. Brittle reservoir rock is more readily fractured during hydraulic stimulation than more malleable rock. Stages with …


Blind Image Denoising Using Supervised And Unsupervised Learning, Surekha Pachipulusu Jan 2020

Blind Image Denoising Using Supervised And Unsupervised Learning, Surekha Pachipulusu

Graduate Theses, Dissertations, and Problem Reports (ETD)

Image denoising is an important problem in image processing and computer vision. In real-world applications, denoising is often a pre-processing step (so-called low-level vision task) before image segmentation, object detection, and recognition at higher levels. Traditional image denoising algorithms often make idealistic assumptions with the noise (e.g., additive white Gaussian or Poisson). However, the noise in the real-world images such as high-ISO photos and microscopic fluorescence images are more complex. Accordingly, the performance of those traditional approaches degrades rapidly on real-world data. Such blind image denoising has remained an open problem in the literature.

In this project, we report two …


Creating Positive, Negative, And Neutral Primes And Testing Their Impact On Scrupulosity Relevant Tasks And Symptoms, Kelsey Jean Evey Jan 2020

Creating Positive, Negative, And Neutral Primes And Testing Their Impact On Scrupulosity Relevant Tasks And Symptoms, Kelsey Jean Evey

Graduate Theses, Dissertations, and Problem Reports (ETD)

A series of three studies was conducted to develop and validate primes to activate negative, positive, or neutral beliefs about God and to determine how these activated beliefs impact scrupulosity signs and symptoms. Scrupulosity is a specific presentation of obsessive-compulsive disorder (OCD) in which individuals become preoccupied and distressed by intrusive thoughts and images related to religious issues. Individuals with more severe scrupulosity often have more negative beliefs about God. Christianity conceptualizes God in both positive (e.g., loving, caring, and helpful) and negative (e.g., angry, judgmental, and wrathful) terms. It is therefore important to determine how more positive, negative, or …


Synthesis Of Graphene Using Plasma Etching And Atmospheric Pressure Annealing: Process And Sensor Development, Andrew Robert Graves Jan 2020

Synthesis Of Graphene Using Plasma Etching And Atmospheric Pressure Annealing: Process And Sensor Development, Andrew Robert Graves

Graduate Theses, Dissertations, and Problem Reports (ETD)

Having been theorized in 1947, it was not until 2004 that graphene was first isolated. In the years since its isolation, graphene has been the subject of intense, world-wide study due to its incredibly diverse array of useful properties. Even though many billions of dollars have been spent on its development, graphene has yet to break out of the laboratory and penetrate mainstream industrial applications markets. This is because graphene faces a ‘grand challenge.’ Simply put, there is currently no method of manufacturing high-quality graphene on the industrial scale. This grand challenge looms particularly large for electronic applications where the …


Control Of Charged Particle Dynamics And Electron Power Absorption Dynamics Utilizing Voltage Waveform Tailoring In Capacitively Driven Radio-Frequency Plasmas, Steven W. Brandt Jan 2020

Control Of Charged Particle Dynamics And Electron Power Absorption Dynamics Utilizing Voltage Waveform Tailoring In Capacitively Driven Radio-Frequency Plasmas, Steven W. Brandt

Graduate Theses, Dissertations, and Problem Reports (ETD)

In this work, experimental measurements and analysis of numerical simulations are performed for capacitively coupled plasmas driven by tailored voltage waveforms under conditions which examine complicating factors present in industrial processes, including the influence of resonance effects, electronegative gases or gas mixtures, and plasma-surface interactions at a changing plasma-surface interface. Furthermore, the influence of different tailored voltage waveforms on the spatio-temporal electron power absorption, the generation of a DC self-bias, and on process relevant plasma parameters like ion energy distribution functions is investigated to provide a more complete understanding of the underlying fundamental plasma physics responsible for sustaining the discharge. …


Hard Work Beats Talent, Unless Talent Works Hard: Exploring The Relationship Between Self-Efficacy And Sales Performance, Mohammad Sakif Amin Jan 2020

Hard Work Beats Talent, Unless Talent Works Hard: Exploring The Relationship Between Self-Efficacy And Sales Performance, Mohammad Sakif Amin

Graduate Theses, Dissertations, and Problem Reports (ETD)

Current research in sales suggests that salesperson self-efficacy, which is a person’s belief about his/her ability to achieve a desired level of performance in a given task, affects sales performance positively. The logic behind this positive effect is that people who exhibit a high level of self-efficacy have increased motivation and thus exert increased efforts towards completing a task. Research in psychology, however, suggests that there can be a downside to self-efficacy. Drawing on perceptual control and ego depletion theories, this dissertation explores two possible dark side effects of self-efficacy in a sales context: (1) decreased salesperson effort engendered by …


Utilization Of A Numerical Reservoir Simulation With Water And Gas Injection For Verification Of Top Down Modeling, Ashley Konya Jan 2020

Utilization Of A Numerical Reservoir Simulation With Water And Gas Injection For Verification Of Top Down Modeling, Ashley Konya

Graduate Theses, Dissertations, and Problem Reports (ETD)

The primary purpose of this thesis was to confirm the capabilities of artificial intelligence and machine learning through Top Down Modeling in history matching and predicting the oil, gas, and water production rates, reservoir pressure, and water saturation, of one limb of an anticline with water and gas injection. Several other characteristics were also applied to make the model more realistic to industry standards. The second purpose of this thesis was to determine the minimum amount of training and calibration data required in order to obtain good results for this particular dataset by increasing the blind validation in one year …


Regional Variation On Loanword Adaptation In Japanese, Yuki Hattori Jan 2020

Regional Variation On Loanword Adaptation In Japanese, Yuki Hattori

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis examines the variations of loanword abbreviations in Japanese dialects. When adopting foreign words into Japanese, phonological grammar is applied creating loanwords. When loanwords are introduced, Japanese phonological rules determine how to pronounce the new words; Japanese truncation styles are applied to shorten and abbreviate loanwords. Much like native Japanese words, regional variations can be observed in loanword abbreviations. In order to discover how variations are created, this study compares two dialects: the eastern Japanese dialect (standard dialect) and the western Japanese dialect (Kansai dialect). Despite a recent decrease in popularity, the Kansai dialect is still one of the …


Integrating Care: Evaluation Of A Hepatitis C Clinic Co-Located With Harm Reduction And Addiction Treatment Programs In A Rural Clinic, Susan Ruth Mckenrick Jan 2020

Integrating Care: Evaluation Of A Hepatitis C Clinic Co-Located With Harm Reduction And Addiction Treatment Programs In A Rural Clinic, Susan Ruth Mckenrick

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: West Virginia (WV) is second in the nation for cases of Hepatitis C Virus (HCV) per capita – meaning more than 24,000 residents are living with HCV. Most new cases are in young persons who inject drugs (PWID). However, the no-call, no-show rate for HCV patients coming to clinics in Morgantown is about 50%, indicating the need to do a better job engaging them in care. Literature suggests that integrating HCV clinics with harm reduction and addiction treatment programs increases uptake of HCV treatment.

Objective: The overall objective was to establish an integrated HCV clinic where harm reduction …


The Immunological Response To Chronic Stress In Obese Mice, Matthew Corey Parsley Jan 2020

The Immunological Response To Chronic Stress In Obese Mice, Matthew Corey Parsley

Graduate Theses, Dissertations, and Problem Reports (ETD)

Obesity and psychological stress are major risk factors for cardiovascular disease and have a positive correlation with vascular dysfunction. This functional deficit has been linked to a pro-inflammatory milieu, exacerbated by an upregulation of pro-inflammatory cytokines. Febuxostat, a xanthine oxidase inhibitor, has been shown to rescue vascular impairment in these models. The purpose of this study was to examine the individual and combined effects of obesity and chronic stress on neuroimmune cell populations, and assess if febuxostat is able mediate immune alterations.

Male mice (n=48) were assigned into either normal chow (lean) and high-fat diet (obese) groups. The lean animals …


Evaluation Of The Impact Of An Educational Intervention Focused On Adolescent Vaping Among Rural Middle School Students, Holly F. Fitzwater Jan 2020

Evaluation Of The Impact Of An Educational Intervention Focused On Adolescent Vaping Among Rural Middle School Students, Holly F. Fitzwater

Graduate Theses, Dissertations, and Problem Reports (ETD)

According to the Centers for Disease Control (CDC), sixty deaths due to the use of electronic cigarettes or other vaping products have been reported to date. Vaping has become viewed as a safe alternative to traditional cigarette smoking, particularly in the adolescent population. The U.S. Preventive Services Task Force (USPSTF) recommends education by primary care clinicians to prevent initiation of tobacco products among adolescents. In order to combat this health disparity in America’s youth, intervention by the nursing profession is necessary. An educational session and interactive game were implemented by a school-based family nurse practitioner in order to change the …


Modeling And Tuning Of Cvt Systems For Sae® Baja Vehicles, Sean Sebastian Skinner Jan 2020

Modeling And Tuning Of Cvt Systems For Sae® Baja Vehicles, Sean Sebastian Skinner

Graduate Theses, Dissertations, and Problem Reports (ETD)

Continuously variable transmission (CVT) describes a family of transmission styles. These systems serve the same purpose as their traditional counterparts; transmitting power while offering a variable gearing ratio. The difference lies in the CVT’s ability to change ratio continuously between a minimum and maximum without halting power transfer. They offer many benefits of an automatic transmission while being significantly lighter. For this reason, CVTs are often used on Baja SAE® vehicles to control gearing ratio.

WVU’s Baja team has used mechanical CVTs for many decades. These systems are simpler in the sense that they don’t require power to operate. …


Reservoir Characterization And Static Earth Modeling For Potential Co2 Storage In Upper Pennsylvanian Cyclothems Of Midcontinent, Usa, Valerie Lynn Smith Jan 2020

Reservoir Characterization And Static Earth Modeling For Potential Co2 Storage In Upper Pennsylvanian Cyclothems Of Midcontinent, Usa, Valerie Lynn Smith

Graduate Theses, Dissertations, and Problem Reports (ETD)

This dissertation details the estimation of CO2 storage volume using reservoir characterization and the building of static earth models in two papers: 1) for Sleepy Hollow Field in Red Willow County, Nebraska and, 2) for Huffstutter Field, Phillips County, Kansas. These models are used to obtain estimates of CO2 storage capacity in stacked carbonate intervals of the Pennsylvanian Lansing and Kansas City groups (LKC). The LKC constitutes a regional succession of interbedded carbonates and shales. Located over the Cambridge Arch of Nebraska, these interbedded units were evaluated for carbon storage potential. Understanding the occurrence of carbonate porosity among …


A Descriptive Analysis Of Pete Master’S Programs In The U.S. And Their Alignment With Advanced Teaching Standards, Jamie K. Gilbert Jan 2019

A Descriptive Analysis Of Pete Master’S Programs In The U.S. And Their Alignment With Advanced Teaching Standards, Jamie K. Gilbert

Graduate Theses, Dissertations, and Problem Reports (ETD)

Background: This study provided a descriptive analysis of PETE master’s degree programs in the United States. Program demographics and curriculum alignment with SHAPE America’s three advanced teaching standards and four guiding principles were the focus of this research.

Methods: This research utilized a non-experimental, cross-sectional descriptive research design and a two-phase approach to collect data. The quantitative survey component analyzed the demographics of programs (n=13) using descriptive analysis. Phone-based semi-structured interviews were conducted to collect data from program affiliates (n=4) concerning program adherence to three advanced PETE standards and four guiding principles.

Results: Public universities granting …


Optimizing The Production And Injection Wells Flow Rates In Geothermal Field Using Artificial Intelligence, Muhammet Salih Ariturk Jan 2019

Optimizing The Production And Injection Wells Flow Rates In Geothermal Field Using Artificial Intelligence, Muhammet Salih Ariturk

Graduate Theses, Dissertations, and Problem Reports (ETD)

In a geothermal field, power plants are designed for long-term electricity generation. Therefore, it is crucial to predict the future production and injection flow rates of the wells to determine the capacity of a power plant. In the designing of such power plants, calculations and estimations are based on the current future production, and injection flow rates and pressures in the geothermal field. Prediction of future production and injection flow rates also assist in building surface facilities with cost-efficient power plants. The most common problem in a power plant in geothermal fields is the inability to accurately estimate future expected …


Elucidating A Common Mechanism Of Proteasome Impairment In Neurodegenerative Disease And Its Pharmacological Intervention, Tiffany Ann Thibaudeau Jan 2019

Elucidating A Common Mechanism Of Proteasome Impairment In Neurodegenerative Disease And Its Pharmacological Intervention, Tiffany Ann Thibaudeau

Graduate Theses, Dissertations, and Problem Reports (ETD)

Proteostasis is maintained by several systems in the cell including the ubiquitin-proteasome system (UPS), chaperones, chaperone-mediated autophagy, and macroautophagy. The UPS is the principle route for the degradation of intracellular misfolded, damaged, or unneeded cellular proteins and has a critical role essential every cell process, including: cell cycle progression, transcriptional regulation, genome integrity, apoptosis, immune responses, and neuronal plasticity. When the efficiency of protein degradation is perturbed, misfolded and damaged protein aggregates can accumulate to toxic levels and cause neuronal dysfunction, which may underlie many neurodegenerative diseases. It is widely appreciated that soluble oligomers of misfolded proteins (e.g. Aβ, Alzheimer’s; …


Analysis Of Unconventional Oil And Gas Impacts On Downstream Fish Assemblages And Physiological Stress, Joshua Noah Ankeny Jan 2019

Analysis Of Unconventional Oil And Gas Impacts On Downstream Fish Assemblages And Physiological Stress, Joshua Noah Ankeny

Graduate Theses, Dissertations, and Problem Reports (ETD)

Unconventional Oil and Gas (UOG) production has been steadily expanding throughout the mid-Atlantic since 2008. Increased sedimentation, degraded water chemistry and an overall decrease in habitat quality due to UOG is anticipated to negatively impact aquatic inhabitants, a common observation in other stressed landscapes (i.e., mining, agriculture, development). We assessed stream health through both community analysis and physiological parameters (i.e., growth and hematocrit). A before-after-control-impact study uncovered three fish metrics that were significantly different following UOG disturbances. The invertivore-piscivore metric decreased following UOG disturbance (p = 0.045) whereas two benthic metrics saw a surprising increase (p = 0.003 and p …


The Structural Information Filtered Features Potential For Machine Learning Calculations Of Energies And Forces Of Atomic Systems., Jorge Arturo Hernandez Zeledon Jan 2019

The Structural Information Filtered Features Potential For Machine Learning Calculations Of Energies And Forces Of Atomic Systems., Jorge Arturo Hernandez Zeledon

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the last ten years, machine learning potentials have been successfully applied to the study of crystals, and molecules. However, more complex materials like clusters, macro-molecules, and glasses are out reach of current methods. The input of any machine learning system is a tensor of features (the most universal type are rank 1 tensors or vectors of features), the quality of any machine learning system is directly related to how well the feature space describes the original physical system. So far, the feature engineering process for machine learning potentials can not describe complex material. The current methods are highly inefficient …


Listening For The Cosmic Other: Postcolonial Approaches To Music In The Space Age, Paige Zalman Jan 2019

Listening For The Cosmic Other: Postcolonial Approaches To Music In The Space Age, Paige Zalman

Graduate Theses, Dissertations, and Problem Reports (ETD)

As government programs such as NASA and SETI seek signs of intelligent life in space and privately-funded programs such as SpaceX finalize plans to colonize Mars in the coming decades, representations of space and extraterrestrial life in American culture have become increasingly relevant. Focusing on Jóhann Jóhannsson’s musical score for Denis Villeneuve’s science-fiction film Arrival (2016), Terry Riley’s Sun Rings (2002) for string quartet, chorus, and recorded space sounds, and former International Space Station Commander Chris Hadfield’s “Songs about Space” Spotify playlist, my research problematizes the ways in which composers, musicians, and even astronauts depict alterity through music and reinforce …


Nuanced Narratives: Reporting With Critical Race And Feminist Standpoint Theories, Emily Margaret Pelland Jan 2019

Nuanced Narratives: Reporting With Critical Race And Feminist Standpoint Theories, Emily Margaret Pelland

Graduate Theses, Dissertations, and Problem Reports (ETD)

The Google Expedition titled WWI Era Through the Eyes of the Chicago Defender explores African American experiences during the early years of the Great Migration (1910-1970). Conventional journalism relies on the false idea that journalists are meant to be, and can be, objective, outside observers. This report provides tools for journalists to create more nuanced, thorough storytelling endeavors. This report describes the theoretical framework and intent of the Virtual Reality (VR) project for students in grades 8 and above. It utilizes Feminist Standpoint Theory (FST) and Critical Race Theory (CRT) to cultivate a VR experience that acknowledges particular, overlooked aspects …


Mindfulness For Musicians: Bringing Sport Psychology And Mindfulness-Based Therapies To The Practice Room And The Concert Stage, Lauretta M. Werner Jan 2019

Mindfulness For Musicians: Bringing Sport Psychology And Mindfulness-Based Therapies To The Practice Room And The Concert Stage, Lauretta M. Werner

Graduate Theses, Dissertations, and Problem Reports (ETD)

Due to the profession’s competitive nature, time-consuming demands, and frequent evaluations, many musicians experience debilitating music performance anxiety, hypercritical thoughts, and/or avoidance of specific performance situations. To cope with these experiences, musicians can cultivate mindfulness. Mindfulness is purposefully and non-judgmentally paying attention to the present moment, developing awareness of emotions, thoughts, and physical sensations, and acknowledging the reality of one’s experience. “Mindfulness for Musicians: Bringing sport psychology and mindfulness-based therapies to the practice room and the concert stage” discusses how cultivating mindfulness helps musicians cope with intense emotions, such as panic or fear, and explores how cultivating mindfulness helps musicians …


Optimization Of Engineered Super Donor Strains Of Cryphonectria Parasitica To Reduce Canker Expansion In A Forest Setting, Amy Michelle Metheny Jan 2019

Optimization Of Engineered Super Donor Strains Of Cryphonectria Parasitica To Reduce Canker Expansion In A Forest Setting, Amy Michelle Metheny

Graduate Theses, Dissertations, and Problem Reports (ETD)

Chestnut blight, caused by the non-native fungus Cryphonectria parasitica, has decimated American chestnut (Castanea dentata) populations throughout the eastern U.S. over the last century. Biological control of blight, termed hypovirulence, has emerged naturally in the form of a debilitating hypovirus transmitted through hyphal anastomosis among vegetatively compatible C. parasitica strains. Six unlinked vegetative incompatibility (vic) loci regulate hyphal anastomosis and thus, hypovirus transmission, which has limited biocontrol efficacy in genotypically diverse communities. Recently, four of six vic loci have been disrupted to engineer two “super donor” or SD strains. In combining these strains, enhanced transmission …


Acoustics Of Vowel Articulation In Flute Playing, Jose Fernando Ramirez Jan 2019

Acoustics Of Vowel Articulation In Flute Playing, Jose Fernando Ramirez

Graduate Theses, Dissertations, and Problem Reports (ETD)

Through an experiment and series of acoustic analysis, this thesis evaluates if vowel articulation modifies flute sound. It is an initial investigation in a sequence of research on linguistics solving major questions in flute performance and teaching, and is a continuation of a previous pilot project called “Acoustics and Perception of Speech Sound on the Flute,” where participants attempt to distinguish vowel articulation of the mouth while playing the flute. In this thesis, the flute sound is tested acoustically to provide evidence of how vowels alter the timbre. To this end, a professional flutist recorded A=440 Hz in the three …


Multimodal Approach For Malware Detection, Jarilyn M. Hernandez Jimenez Jan 2019

Multimodal Approach For Malware Detection, Jarilyn M. Hernandez Jimenez

Graduate Theses, Dissertations, and Problem Reports (ETD)

Although malware detection is a very active area of research, few works were focused on using physical properties (e.g., power consumption) and multimodal features for malware detection. We designed an experimental testbed that allowed us to run samples of malware and non-malicious software applications and to collect power consumption, network traffic, and system logs data, and subsequently to extract dynamic behavioral-based features. We also extracted code-based static features of both malware and non-malicious software applications. These features were used for malware detection based on: feature level fusion using power consumption and network traffic data, feature level fusion using network traffic …


Empirical Studies Related To Open Questions Regarding Geomagnetic Storms, Bruce Patrick Tepke Jan 2019

Empirical Studies Related To Open Questions Regarding Geomagnetic Storms, Bruce Patrick Tepke

Graduate Theses, Dissertations, and Problem Reports (ETD)

Earth’s magnetosphere is subject to disturbances, as evidenced by variations of the geomagnetic field in space and on the ground. It is generally understood that most such disturbances are controlled by variations in the solar wind, with interplanetary magnetic field orientations directed southward opposite to Earth’s dipole magnetic axis being most conducive to energy transfers into the magnetosphere, thus resulting in more disturbed intervals. However, the exact functional form for solar wind driving of the magnetosphere has been widely studied, with proposed functional forms varying from the simple half-wave electric rectifier to expressions with a much more complicated dependence upon …


The Economic Contribution Of West Virginia's Forest Products Industry, Charles Clinton Gabbert Jan 2019

The Economic Contribution Of West Virginia's Forest Products Industry, Charles Clinton Gabbert

Graduate Theses, Dissertations, and Problem Reports (ETD)

The hardwood forests that cover West Virginia have historically been an important resource to the state. The turbulent economic conditions resulting from the U.S. housing market collapse of the mid-2000s and subsequent economic recession have cause immense disruptions in the country’s forest products industry (FPI). An assessment of the economic contribution of the state’s FPI and the 7 major forest product sectors which comprise it was completed using the input-output economic modeling software IMPLAN with 2017 data. The historical contribution of the state industry was then assessed and compared for the years 2006, 2010, 2015, and 2017 to examine the …


Chercheur De Lumière: The Art Of Jean-Louis Rouméguère (1863-1925), Elizabeth Ann Wheeler Jan 2019

Chercheur De Lumière: The Art Of Jean-Louis Rouméguère (1863-1925), Elizabeth Ann Wheeler

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis examines the landscape paintings of Jean-Louis Rouméguère (1863-1925), who was active in southwestern France in the early twentieth century. Rouméguère, who also had a brief Parisian career, was a fervently independent artist whose work nonetheless shows the varied influences of the Barbizon school, the Impressionist movement, and even classical landscape techniques. Working exclusively in the regions stretching from Auvergne to the Pyrenees, Rouméguère created atmospheric, somatically-appealing paintings that experimented with pushing small scale to an extreme. The artist’s work demonstrates his quest to capture the intense, ever-shifting light of his region while maintaining a sense of harmony and …


The /H/ Phenomenon: Overgeneralised Or Confused? The Nigerian Yoruba-English Speakers As A Case Study, Oluwabukola Omolara Bamidele Jan 2019

The /H/ Phenomenon: Overgeneralised Or Confused? The Nigerian Yoruba-English Speakers As A Case Study, Oluwabukola Omolara Bamidele

Graduate Theses, Dissertations, and Problem Reports (ETD)

In this thesis, I examined why the Yoruba speakers of the English language have difficulty in pronouncing word-initial glottal fricative in English. /h/ dropping and /h/ insertion is not expected as the Yoruba language supposedly have the glottal fricative in its sound inventory. I gave a brief introduction to Yoruba phonetics, a brief history about the contact between English and Yoruba language, and what other researchers have written about the /h/ dropping and insertion phenomenon.

The research question was why the Yoruba-English speakers delete and insert the glottal fricative at the word-initial position. I started by investigating the nature of …


Elucidating Disease Dynamics In The Biocontrol Of Ailanthus Altissima While Confirming The Host Specificity Of The Vascular Wilt Pathogen Verticillium Nonalfalfae, Kristen L. Wickert Jan 2019

Elucidating Disease Dynamics In The Biocontrol Of Ailanthus Altissima While Confirming The Host Specificity Of The Vascular Wilt Pathogen Verticillium Nonalfalfae, Kristen L. Wickert

Graduate Theses, Dissertations, and Problem Reports (ETD)

Ailanthus altissima is a highly invasive exotic tree species entrenched throughout the United States. Since the discovery of a vascular wilt disease of Ailanthus in 2002, caused by the fungus Verticillium nonalfalfae, many studies are investigating its potential as a biocontrol focusing on efficacy, host specificity and disease transmission. This study addresses: the reproductive potential of Ailanthus; if V. dahliae alters Verticillium wilt progression; if hardiness zones influence the individual contributions of two Verticillium spp.; can a unique habitat affect biocontrol efficacy; and can the fungal proteome of V. nonalfalfae allow us to explain differences in host …


Morphological And Functional Evidence Of Sexual Dimorphism In The Retrochiasmatic Area Population Of Nk3r-Containing Neurons In Sheep, Justin A. Lopez Jan 2019

Morphological And Functional Evidence Of Sexual Dimorphism In The Retrochiasmatic Area Population Of Nk3r-Containing Neurons In Sheep, Justin A. Lopez

Graduate Theses, Dissertations, and Problem Reports (ETD)

Neurokinin B (NKB) and kisspeptin are critical for fertility and potent stimulators of gonadotropin-releasing hormone (GnRH) and luteinizing hormone (LH) secretion in sheep. We previously demonstrated that administration of NKB receptor (NK3R) agonist, senktide, within the retrochiasmatic area (RCh) resulted in surge-like release of LH and increased expression of kisspeptin neurons in the arcuate nucleus (ARC) of female lambs. We concluded that NKB-responsive neurons in the RCh stimulate GnRH secretion by inducing kisspeptin release from neurons in the ARC.

We have demonstrated morphological and functional evidence of sexual dimorphism in NKB-NK3R signaling in ovine RCh. RCh senktide administration resulted in …