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Pulsar Populations In The Galaxy And Magellanic Clouds, Joshua P. Ridley
Pulsar Populations In The Galaxy And Magellanic Clouds, Joshua P. Ridley
Graduate Theses, Dissertations, and Problem Reports (ETD)
Pulsars are great tools for studying the Universe. From energetics to radio emission, many of the properties of pulsars can be used to understand other physical phenomena occurring throughout the Universe today. This dissertation examines pulsars and their properties through the use of computer simulations, describes the basic pulsar search procedure, and presents the results of a search for millisecond pulsars (MSPs) and fast radio transients in the Small Magellanic Cloud (SMC).;Using Monte Carlo simulations, a working model of normal pulsars that accurately represents the observed population was created. These simulations allow for changes to be made to the initial …
High Rank Tensor And Spherical Harmonic Models For Diffusion Mri Processing, Inas A. Yassine
High Rank Tensor And Spherical Harmonic Models For Diffusion Mri Processing, Inas A. Yassine
Graduate Theses, Dissertations, and Problem Reports (ETD)
Diffusion tensor imaging (DTI) is a non-invasive quantitative method of characterizing tissue micro-structure. Diffusion imaging attempts to characterize the manner by which the water molecules within a particular location move within a given amount of time. Measurement of the diffusion tensor (D) within a voxel allows a macroscopic voxel-averaged description of fiber structure, orientation and fully quantitative evaluation of the microstructural features of healthy and diseased tissue.;The rank two tensor model is incapable of resolving multiple fiber orientations within an individual voxel. This shortcoming of single tensor model stems from the fact that the tensor possesses only a single orientational …
Sub-Surface Stratigraphy And Petrophysical Analysis Of The Middle Devonian Interval Of The Central Appalachian Basin; West Virginia And Southwest Pennsylvania, Matthew Louis Boyce
Sub-Surface Stratigraphy And Petrophysical Analysis Of The Middle Devonian Interval Of The Central Appalachian Basin; West Virginia And Southwest Pennsylvania, Matthew Louis Boyce
Graduate Theses, Dissertations, and Problem Reports (ETD)
In the central Appalachian basin, the Middle Devonian organic-rich shale interval, including the Marcellus Shale, is an important target for natural gas exploration. It has emerged as a giant unconventional resource play due to aerial extent and potential for individual wells to produce large volumes of gas. The Marcellus Shale is well studied on the surface without the incorporation of the subsurface stratigraphy. However, to fully understand the Marcellus economic potential it is important to investigate and map the related Middle Devonian sub-surface stratigraphic units. The interval studied includes the Onondaga Limestone (Eifelian), Marcellus Shale (Eifelian), Purcell Limestone (Eifelian), Mahantango …
Correlating Simulated Surface Marks With Near-Surface Tornado Structure, Michael I. Zimmerman
Correlating Simulated Surface Marks With Near-Surface Tornado Structure, Michael I. Zimmerman
Graduate Theses, Dissertations, and Problem Reports (ETD)
Tornadoes often leave behind patterns of debris deposition, or "surface marks", which provide a direct signature of their near surface winds. The intent of this thesis is to investigate what can be learned about near-surface tornado structure and intensity through the properties of surface marks generated by simulated, debris-laden tornadoes. Earlier work showed through numerical simulations that the tornado's structure and intensity is highly sensitive to properties of the near-surface flow and can change rapidly in time for some conditions. The strongest winds often occur within tens of meters of the surface where the threat to human life and property …
Pathophysiology And Clinical Implications Of Lower Respiratory Tract Infection (Lrti) With Respiratory Enteric Orphan Virus (Reovirus): Background And Experimental Evidence, Maret E. Bernard
Graduate Theses, Dissertations, and Problem Reports (ETD)
Background. Respiratory viral infection early in life is a predominant factor in the inception of episodic wheezing and development of asthma amongst young children [1] and a serious health challenge. Previous studies of lower respiratory tract infections (LRTI) with respiratory syncytial virus (RSV) in animal models have indicated that early life viral exposure results in dysregulated neuroimmune interactions and altered synthesis/release of pro-inflammatory neuropeptides generating increased airway reactivity and neurogenic-inflammation. Similar to RSV, respiratory enteric orphan virus (Reovirus) is a common respiratory pathogen associated with pulmonary infections in children. Also, reovirus pulmonary infection has been shown to induce increased collagen …
Teacher And Administrator Perceptions Of Technology Use In Two West Virginia Middle Schools, Carrie E. Marcum
Teacher And Administrator Perceptions Of Technology Use In Two West Virginia Middle Schools, Carrie E. Marcum
Graduate Theses, Dissertations, and Problem Reports (ETD)
The "digital natives" that are sitting in today's classrooms live their lives surrounded by technology. "The current crop of learners differs in significant ways from previous generations because, unlike their predecessors, they have literally grown up 'digital'" (Simpson & Clem, 2008, p. 2). Teachers and administrators often struggle to keep up with the technological world that students are used to. This mixed-methods study included West Virginia teachers and administrators from two middle schools. Teachers and administrators at the two schools were given surveys that addressed the following: frequency of technology use for personal and professional use, confidence level with various …
Process Model And Control System For The Glass Fiber Drawing Process, Songke Liu
Process Model And Control System For The Glass Fiber Drawing Process, Songke Liu
Graduate Theses, Dissertations, and Problem Reports (ETD)
Drawing of glass fibers is an important industrial process used for manufacture of a variety of materials ranging from optical communications cables to fiber filter media. A variety of machines exist for performing the drawing function, but all share similar problems with control of the fiber diameters and breakage of the fibers during the extrusion process. In many cases, control systems are not configured to monitor the most critical process variables-- temperature of molten glass in the furnace, but instead use only furnace crown temperature. Upsets in disturbance variables such as ambient temperature are compensated manually by operators, usually only …
An Evaluation Of The Efficacy And Safety Of A Protocol To Premedicate Neonates For Elective Or Semi-Urgent Intubations In A Newborn Intensive Care Unit, Judith Dunmire Polak
An Evaluation Of The Efficacy And Safety Of A Protocol To Premedicate Neonates For Elective Or Semi-Urgent Intubations In A Newborn Intensive Care Unit, Judith Dunmire Polak
Graduate Theses, Dissertations, and Problem Reports (ETD)
Background. Intubation is a painful and stressful procedure frequently performed in the NICU, yet less than 1% of US preterm infants receive premedication. The purpose of this study is to evaluate the efficacy of an intubation protocol in the NICU to add one 2mcg/kg dose of fentanyl prior to the procedure.;Objectives. The primary outcome was to decrease the time to successful intubation. Secondary outcomes were to increase staff knowledge regarding procedural pain, to reduce the number of attempts and to decrease adverse physiologic events.;Design. Staff attended one educational session. Pre- and post-tests assessed knowledge, beliefs, and attitudes. Data pre- and …
Computational Fluid Dynamic Studies Of Chemical Looping Combustion Systems, Kartikeya Krishnaji Mahalatkar
Computational Fluid Dynamic Studies Of Chemical Looping Combustion Systems, Kartikeya Krishnaji Mahalatkar
Graduate Theses, Dissertations, and Problem Reports (ETD)
Responsible carbon management will be required for the future utilization of fossil fuels for power generation. One technology that is showing tremendous potential for carbon capture is the chemical looping combustion (CLC). CLC involves combustion of fuels by heterogeneous chemical reactions with an oxygen carrier, usually a granular metal oxide, exchanged between two fluidized beds. In any regular combustion process the oxidizer for the fuel is air which essentially is a mixture of oxygen and nitrogen. This results in a flue gas stream which consists of primarily of relatively dilute CO 2 (15 -- 20%), mixed with steam and nitrogen. …
Short Historical Overview And Comparison Of The Pitch Width And Speed Rates Of The Vibrato Used In Sonatas And Partitas For Solo Violin By Johann Sebastian Bach As Found In Recordings Of Famous Violinists Of The Twentieth And The Twenty-First Centuries, Tomislav Dimov
Graduate Theses, Dissertations, and Problem Reports (ETD)
This doctoral research project explores the use of violin vibrato present in recordings of the Six Sonatas and Partitas for Solo Violin, BWV 1001-1006 by Johann Sebastian Bach, made by forty prominent violinists during the last 100 years. It reports strictly on two of the most objectively measurable and characteristic parameters of the vibrato---its width and rate.;Forming an essential part of the violinist's central repertory for more than a century, Bach's cycle has received the highest levels of scholarly and artistic attention and the matter of vibrato has certainly been examined. However, to date there has been no systematic study …
Dynamic Src Tyrosine Kinase Signaling Directs Invadopodia Formation And Function In Head And Neck Cancer: Novel Insights Into The Original Oncogene, Laura Catherine Kelley
Dynamic Src Tyrosine Kinase Signaling Directs Invadopodia Formation And Function In Head And Neck Cancer: Novel Insights Into The Original Oncogene, Laura Catherine Kelley
Graduate Theses, Dissertations, and Problem Reports (ETD)
Cancer cell invasion and motility is mediated through actin-rich protrusions that facilitate migration through extracellular matrix and degradation of tissue barriers. Src tyrosine kinase is an essential catalyst of motile actin networks and is a potent mediator of the metastatic program. The Src substrate cortactin is a critical scaffold that links kinase signaling to cytoskeletal dynamics. Both Src and cortactin are overexpressed in several human cancers and their expression is associated with poor prognosis. These proteins are not associated with the initiation of tumorigenesis, but are thought to play a vital role in the metastatic process. The overall aim of …
The Power-Knowledge To Move Mountains: Subaltern Discourses Of Mountaintop Removal In Coal River Valley, West Virginia, Jen Osha
Graduate Theses, Dissertations, and Problem Reports (ETD)
This research investigates the perspectives of local residents within the Coal River Valley, WV, who are concerned about the impacts of mountaintop removal (MTR) on themselves, their families and communities, and their environment. In this dissertation, the term 'subaltern' represents a heterogeneous community of resistance to MTR with multiple perspectives around intersections of gender, age, and livelihood. The objectives of my study are twofold: to illuminate how dominant legal discourse continues to subjugate the discourse of resistance to MTR, and to identify possible spaces of resistance within which the subaltern discourse can challenge the power relations that continue to permit …
Where Independence Meets Its Match: The Intersection Of Musical Identity, Record Promotion And College Radio Programming, Aaron J. Hawley
Where Independence Meets Its Match: The Intersection Of Musical Identity, Record Promotion And College Radio Programming, Aaron J. Hawley
Graduate Theses, Dissertations, and Problem Reports (ETD)
College Radio has long been championed for being one of the last independent voices on a radio dial dominated by corporate for-profit stations. While corporate stations program their playlists towards whatever is on the charts, independent programming has long been part of the appeal of college radio. However, college radio music directors are in constant contact with record promoters whose sole goal is to get their clients' records played on-air. While a notion of independence is central to college radio's musical identity, these record promoters hold a great deal of power in the decision making process. Upon investigation at WVU …
Procedures For A Long Term Retention Data For The Analysis And Design Of A Rudder For A Marine Vessel: Step Documentation, Franklin A. Montejo
Procedures For A Long Term Retention Data For The Analysis And Design Of A Rudder For A Marine Vessel: Step Documentation, Franklin A. Montejo
Graduate Theses, Dissertations, and Problem Reports (ETD)
The process of mechanical design involves many steps, starting from a customer need. Then the engineer estimates the possible solutions until an optimal product is achieved. Through these design steps, information is created and exchanged among different design activities. Currently the industry lacks a means to preserve this information flow for future use.;In the end, much of the information generated in the design process may not be available due to obsolete software used to create the design; one missing part of the process; a missing link between the design tasks; unknown context of the design, and some other possibilities.;The present …
Assessing The Variation Of Driver Distraction With Experience--- Research Extension, Pradeep Thummala
Assessing The Variation Of Driver Distraction With Experience--- Research Extension, Pradeep Thummala
Graduate Theses, Dissertations, and Problem Reports (ETD)
Deviating attention from the complex task of driving can be distraction. Driving requires the scanning of the road environment (front, sides and back), as well as monitoring dashboard and navigational tools. Shorter eye glance durations away from road are used for better scanning of roadside hazards, compared to longer eye glances that are riskier and considered distraction.;Defining distraction as looking away from roadway for more than 2 seconds, this research analyses eye glances away from roadway for more than 2 seconds, 2.5 seconds and 3 seconds using variables such as total glance duration away from roadway, percentage glance duration away …
Estimation Of Fracture Properties For A Horizontal Well With Multiple Hydraulic Fractures In Gas Shale, Ayodeji L Aboaba
Estimation Of Fracture Properties For A Horizontal Well With Multiple Hydraulic Fractures In Gas Shale, Ayodeji L Aboaba
Graduate Theses, Dissertations, and Problem Reports (ETD)
This research work presents a new method for estimating fracture properties for a horizontal well with multiple hydraulic fractures in shale gas reservoirs. This method utilizes the production data obtained during the linear flow period to provide reliable estimates of both fracture half-length and formation permeability.;The new method provides an excellent alternative to the conventional pressure transient analysis methods. It requires neither the existence of the elliptical flow nor the pseudoradial flow periods and thus reduces the impractical long times required for well testing in horizontal wells drilled in shale gas reservoirs. The conventional pressure transient analysis methods require an …
Mercury Removal From Coal By Leaching With Sulfur Dioxide, Poornima Chateker
Mercury Removal From Coal By Leaching With Sulfur Dioxide, Poornima Chateker
Graduate Theses, Dissertations, and Problem Reports (ETD)
Mercury from coal-fired utilities has been identified as one of the most hazardous air pollutants and the greatest potential public health concern. Furthermore, it has a tendency to bio-accumulate in the food chain. Mercury is present in coal in concentration well below 1 ppm; however, the large tonnages of coal consumed for electric power generation represent a significant source of mercury vapor entering the environment. There are various technologies available to control the emission of mercury from coal-fired power plants. Among them activated carbon injection into the flue gas stream has been studied for many years and is considered to …
Quantification Of Uncertainty Associated With Injecting Carbon Dioxide, And Design Of Ecbm Reservoir In Appalachian Basin Coals, Jesma Mohan
Graduate Theses, Dissertations, and Problem Reports (ETD)
There are tremendous coal bed methane resources throughout the world. However, with conventional production methods, 40-80% of methane is left behind as unrecoverable. Enhanced coal bed methane (ECBM) recovery by injection of Carbon dioxide (CO2) is motivated by the dual benefits of improved gas recovery and green house gas storage. In practice, this technology is relatively new, still in the early stage of development, and the economic performance of ECBM has yet to be verified. Due to the complexity of CBM reservoirs, the production performance involves significant uncertainties. It is imperative to quantify the uncertainty of production performance in order …
A Field Evaluation Of Dust Palliatives In West Virginia, Kevin A. Butler
A Field Evaluation Of Dust Palliatives In West Virginia, Kevin A. Butler
Graduate Theses, Dissertations, and Problem Reports (ETD)
It is estimated that a vehicle making a single pass on one mile of untreated, unpaved road every day can generate one ton of dust per year. This dust constitutes fine materials which act as a binder to the larger coarse aggregates within surface gravel. As these fines are removed, the surface deteriorates and expensive aggregate ends up along the roadside in ditches and culverts. The surface continually deteriorates until the road must be reconstructed. Furthermore, airborne dust presents serious safety concerns to traveling motorists and health concerns associated with respiratory illnesses. At the West Virginia Division of Highway's current …
Simulation-Based Optimum Design Of Sensor Arrays Using Multi-Objective Tabu Search, Zongyu Geng
Simulation-Based Optimum Design Of Sensor Arrays Using Multi-Objective Tabu Search, Zongyu Geng
Graduate Theses, Dissertations, and Problem Reports (ETD)
This thesis is concerned with the optimum design of sensor arrays (i.e., electronic noses or tongues) using simulation experiments. The proposed design method adopts a set of new criteria, which more adequately represent the desirable properties of a sensor array in practice. A number of best non-dominated array designs are selected through a multiple objective (criteria) Tabu search algorithm. The evaluation of a candidate sensor array is based on its multivariate calibration model, which is efficiently estimated from well-designed simulation experiments. The method can be used to optimize the design of both linear and nonlinear sensor arrays.
Design And Development Of A Prototype Of Dual Modality Pet/Optical Breast Cancer Margin Specification Imager, Krishna Nandanavanam
Design And Development Of A Prototype Of Dual Modality Pet/Optical Breast Cancer Margin Specification Imager, Krishna Nandanavanam
Graduate Theses, Dissertations, and Problem Reports (ETD)
This thesis is an attempt to develop a prototype of a breast cancer imager to assess the margins of excised breast tissue. This device is proposed to be used to assure that the entire cancerous lesion has been removed by imaging the intensity of a radio labeled tracer and inspecting for a noncancerous margin in the volume of the tissue sample. The dual modality PET/optical breast cancer specification imager uses a pair of small PET detectors to measure the bioactivity of an excised sample of tissue. A co-registered optical image is taken to allow the surgeon to visually correlate the …
A Study On Physical Factors That May Influence The Spread And Occurrence Of Influenza, Kedar V. Panday
A Study On Physical Factors That May Influence The Spread And Occurrence Of Influenza, Kedar V. Panday
Graduate Theses, Dissertations, and Problem Reports (ETD)
Influenza is one of respiratory infections causing the highest morbidity and mortality rates. Every day tens of millions of people suffer from virus infection worldwide with varying severity and with a high economic impact. Influenza transmission from person to person occurs in various ways. This study is an attempt to understand airborne transmission in indoor locations by examining the relation between environmental parameters such as temperature and relative humidity with the number of influenza like illness (ILI) cases. It is proposed that the pattern of influenza activity is primarily a function of indoor relative humidity in temperate regions. This conclusion …
The Fantasy Focus: A Content Analysis Of Sports Magazines Examining The Rise In Popularity Of Fantasy Games, Michael Conti
The Fantasy Focus: A Content Analysis Of Sports Magazines Examining The Rise In Popularity Of Fantasy Games, Michael Conti
Graduate Theses, Dissertations, and Problem Reports (ETD)
Fantasy sports (FS) have become a mass phenomenon; it has been estimated that close to thirty million people play some form of fantasy sports, creating a multi-billion dollar market whose popularity and visibility have grown exponentially since its inception. This research examined the rise in popularity of FS with the Diffusion of Innovations theory used as a framework. A content analysis was conducted to gain insight on FS and various topics linked with the games, including social dynamics, gambling associations, and gender issues. Two coders examined fantasy content taken from issues of ESPN magazine, Sports Illustrated, and Sporting News from …
Four Trinity Sunday Cantatas By J. S. Bach: An Examination And Comparison, Jeffry Blake Johnson
Four Trinity Sunday Cantatas By J. S. Bach: An Examination And Comparison, Jeffry Blake Johnson
Graduate Theses, Dissertations, and Problem Reports (ETD)
While the four cantatas presented on Trinity Sunday during Bach's Leipzig years -- BWV 194, 176, 165, and 129 -- were all intended for the same liturgical day, a significant diversity exists among the four compositions. This diversity results from the variety of source material on which the cantatas were based, including material composed during the Leipzig years as well as material re-worked from previous Bach cantatas. The diversity also results from the different librettos and librettists that were utilized for the cantatas. Other factors include the variety of the cantatas' movement structures, performing forces, and the theological/philosophical themes that …
Long-Term Effects Of Timber Management On Forest Breeding Songbirds In The Central Appalachians, Douglas Becker
Long-Term Effects Of Timber Management On Forest Breeding Songbirds In The Central Appalachians, Douglas Becker
Graduate Theses, Dissertations, and Problem Reports (ETD)
I conducted 50-m fixed radius point counts and monitored nests at the Wildlife and Ecosystem Research Forest (WERF) and Panther Run Tract in Randolph County, WV, from 2007--2009 and incorporated previous research using the same techniques from 1996--1998 and 2001--2003.;In chapter two, my objectives were to identify temporal abundance and nest success trends and identify landscape-scale disturbance thresholds for species and habitat guilds using a variety of harvests. Early successional species increased in relative abundance, while interior-edge and forest-interior guilds peaked in relative abundance mid-study, after which the forest-interior guild declined. Of 44 analyzed species, 9% declined, 36% increased, and …
Equine Assisted Activities And Therapies, Carol C. Petitto
Equine Assisted Activities And Therapies, Carol C. Petitto
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation is composed of three essays in which each carefully examines an important aspect of the field of equine assisted activities and therapies (EAAT). In the first essay, I review how equine assisted activities and therapies should be considered as an early intervention to help facilitate communication skills in children with autism. The majority of participants in NARHA programs have autism, and therefore it is critical to appraise the validity of EAAT as a positive intervention. Respondents of NARHA centers to a survey on their use of assessments in tracking the progress of their participants indicated that only 7% …
Mythscapes: Violent Spaces In Postmodern Literature And Culture, Jonathan R. Harvey
Mythscapes: Violent Spaces In Postmodern Literature And Culture, Jonathan R. Harvey
Graduate Theses, Dissertations, and Problem Reports (ETD)
This project focuses on British and American speculative novels written between the 1960s and the 2000s that position the reader to critique the contemporary world. Depictions of violent, fictional spaces, or what I call mythscapes, are playing an influential role in literary, political, religious, and even scientific discourses. The mythscape can initiate introspection on real issues by suggesting possible alternatives, conjecturing about potential consequences, and posing compelling comparisons. I define "mythscape" as an imagined space that features: a setting that is nonrealistic and radically different from, yet implicitly contrastive with, material reality; a rhetorical stance, which is inevitably grounded in …
An Exploration Of Elementary School Counselors' Perceptions Of Students' Exposure To Violent Video Games, Tammy Lynn Woody
An Exploration Of Elementary School Counselors' Perceptions Of Students' Exposure To Violent Video Games, Tammy Lynn Woody
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study explored elementary school counselors' perceptions of working with students exposed to violent video games. Certified elementary school counselors participated in both an online survey and individual interviews, revealing their observations regarding elementary school children and the phenomenon of gaming. An emphasis was placed on information about violent video games and how playing these games appear to impact the students in their schools.;The study addressed the overarching question of whether or not elementary school counselors have concerns about student exposure to violent video games and how they respond to student generated discussions of playing violent video games. The study …
Wireless Sensing System For Load Testing And Rating Of Highway Bridges, Yan Luo
Wireless Sensing System For Load Testing And Rating Of Highway Bridges, Yan Luo
Graduate Theses, Dissertations, and Problem Reports (ETD)
Structural capacity evaluation of bridges is an increasingly important topic in the effort to deal with the deteriorating infrastructure. Most bridges are evaluated through subjective visual inspection and conservative theoretical rating. Diagnostic load test has been recognized as an effective method to accurately assess the carrying capacity of bridges. Traditional wired sensors and data acquisition (DAQ) systems suffer drawbacks of being labor intensive, high cost, and time consumption in installation and maintenance. For those reasons, very few load tests have been conducted on bridges.;This study aims at developing a low-cost wireless bridge load testing & rating system that can be …
Effects Of Acid Mine Drainage And Acid Precipitation On Leaf Litter Breakdown Rates In Appalachian Headwater Streams, Mary Fiona Stewart
Effects Of Acid Mine Drainage And Acid Precipitation On Leaf Litter Breakdown Rates In Appalachian Headwater Streams, Mary Fiona Stewart
Graduate Theses, Dissertations, and Problem Reports (ETD)
Acid precipitation and acid mine drainage have dramatically altered chemical conditions and biological assemblages in streams throughout the central Appalachians. Effects of acidification on functional stream processes such as organic matter decomposition, however, remain poorly understood. The objectives of this study were to: (1) quantify differences in organic matter decomposition among reference streams, streams impacted by acid precipitation, and streams impacted by acid mine drainage; and (2) determine if lowered decomposition rates are the result of reduced microbial activity or altered invertebrate shredder assemblages or both. I quantified water chemistry, organic matter decomposition, microbial activity, and macroinvertebrate community structure in …