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Effects Of Ownership And Circulation On Editorial Presentation In West Virginia Newspapers, Matthew E. Umstead
Effects Of Ownership And Circulation On Editorial Presentation In West Virginia Newspapers, Matthew E. Umstead
Graduate Theses, Dissertations, and Problem Reports
This thesis, which focuses on the post-yellow journalism era in West Virginia, further develops the body of research done on the influence of chain ownership in newspapers.;Historically, strong political biases in news coverage were found in the yellow journalism, early 20th century period. And this study finds a conservative bias on the opinion-editorial pages in a traditionally Democratic state with few competing media markets and reliance upon newspapers for local news. This thesis finds ownership status and circulation size affects the balance and variety of feature items presented within the opinion editorial content. Thus, previous research suggesting chain ownership influence …
Breastfeeding Personal Efficacy Beliefs Of Women University Students, Ann Pollard Cleveland
Breastfeeding Personal Efficacy Beliefs Of Women University Students, Ann Pollard Cleveland
Graduate Theses, Dissertations, and Problem Reports
Many women do not initiate breastfeeding although breastfeeding promotes their baby's health. Three reasons why women do not breastfeed are women's mental organization, cultural beliefs about breastfeeding, and women's breastfeeding personal efficacy beliefs. The conceptual framework for personal efficacy beliefs is Bandura's social-cognitive theory (1992, 1995, 1997). This dissertation used a new research instrument to examine women university students' breastfeeding personal efficacy beliefs. The instrument was tested by mail survey techniques that resulted in a 70.6% respondent rate. University women's personal efficacy beliefs about breastfeeding factored into five factor subscales. In order of magnitude, the personal efficacy belief factors were …
Differences In Groupings Of Students' Academic Achievement, Attendance And Attitude As They Move From A Traditional To A Modified 4 X 4 Block Schedule, Charles Theodore Keenan
Differences In Groupings Of Students' Academic Achievement, Attendance And Attitude As They Move From A Traditional To A Modified 4 X 4 Block Schedule, Charles Theodore Keenan
Graduate Theses, Dissertations, and Problem Reports
The purpose of this investigation is to identify the differences in groups of high school students' achievement, attendance, and attitude as they move from a traditional schedule to a modified 4 x 4 block schedule. The population for this study consisted of all 10th, 11th, and 12th grade students at a high school during the 1998--1999 school year. There were four samples taken from this population, the first, second, third, and fourth quartiles of students. A survey questionnaire was used to determine student attitude. This survey was distributed to all 10th, 11th, and 12th grade students at the high school …
Process Control Of Applied Laser System For Enhanced Glass Production, Liyun Zheng
Process Control Of Applied Laser System For Enhanced Glass Production, Liyun Zheng
Graduate Theses, Dissertations, and Problem Reports
Existing glass crack-off methods often result in considerable loss of glassware and require subsequent edge finishing that is labor intensive. The main objective of this dissertation is to contribute to the development of a laser-enhanced cutting and finishing method that will decrease waste and improve productivity in the manufacturing of handblown glass.;The main objectives of this dissertation were to perform modeling and simulation of the laser glass interaction, to contribute to the lab prototype machine construction, to participate in experiments to investigate the process parameters governing successful glass cutting, and to pursue the design and validation of controls for the …
Teacher Videotaping As A Method Of Self -Assessing Questioning Skills In Secondary Public Schools, Stephen Alan Alberts Ii
Teacher Videotaping As A Method Of Self -Assessing Questioning Skills In Secondary Public Schools, Stephen Alan Alberts Ii
Graduate Theses, Dissertations, and Problem Reports
Primarily this action research project was designed to hone my ability to Socratically question students by reflecting on my teaching through the lens of a videocamera---while reconciling my own paradigm with as many outside assessment devices as possible. The paramount consideration of my questioning/framing references was to incite students to think critically (see Pedagogical Skills Honed in chapter seven). The higher priorities of the outside assessors, on the other hand, were more political than instructional in nature (see Reconciling Multiple Assessments in chapter seven).;Scrutinizing and improving my questioning skills (the focus of the research) led to the epiphany that the …
Formal Specification Of Requirements For Analytical Redundancy-Based Fault -Tolerant Flight Control Systems, Diego Del Gobbo
Formal Specification Of Requirements For Analytical Redundancy-Based Fault -Tolerant Flight Control Systems, Diego Del Gobbo
Graduate Theses, Dissertations, and Problem Reports
Flight control systems are undergoing a rapid process of automation. The use of Fly-By-Wire digital flight control systems in commercial aviation (Airbus 320 and Boeing FBW-B777) is a clear sign of this trend. The increased automation goes in parallel with an increased complexity of flight control systems with obvious consequences on reliability and safety. Flight control systems must meet strict fault-tolerance requirements. The standard solution to achieving fault tolerance capability relies on multi-string architectures. On the other hand, multi-string architectures further increase the complexity of the system inducing a reduction of overall reliability.;In the past two decades a variety of …
Voltage Collapse Prediction For Interconnected Power Systems, Amer S. Al-Hinai
Voltage Collapse Prediction For Interconnected Power Systems, Amer S. Al-Hinai
Graduate Theses, Dissertations, and Problem Reports
A steady state analysis is applied to study the voltage collapse problem. The modal analysis method is used to investigate the stability of the power system. Q-V curves are used to confirm the obtained results by modal analysis method and to predict the stability margin or distance to voltage collapse based on reactive power load demand. The load characteristics are considered in this research. Different voltage dependent loads are proposed in order to be used instead of the constant load model. The effect of induction machine load is considered in this study. The load is connected to several selected buses.;The …
Design, Construction, And Evaluation Of Coal Extraction Pilot Plant To Manufacture Coal-Based Carbon Pitch, Brian Wayne Bland
Design, Construction, And Evaluation Of Coal Extraction Pilot Plant To Manufacture Coal-Based Carbon Pitch, Brian Wayne Bland
Graduate Theses, Dissertations, and Problem Reports
A solvent extraction technique for removing mineral matter, including the inorganic sulfur, from coal has been developed by the Department of Chemical Engineering at WVU. The extraction is preformed at mild conditions (202°C and atmospheric pressure) using the solvent N-Methyl-2-Pyrrolidone (NMP). Laboratory results have shown that this technique yields a clean coal product containing less than 1 percent ash and virtually no inorganic sulfur.;This research was conducted for further process design and economic development of an industrial-scale extraction process.;This research reported the possibility of production scale processing by constructing a pilot plant. The pilot plant was used to explore the …
Influence Of Fuel Sulfur Content On Emissions From Diesel Engines Equipped With Oxidation Catalysts, Jason Carter Evans
Influence Of Fuel Sulfur Content On Emissions From Diesel Engines Equipped With Oxidation Catalysts, Jason Carter Evans
Graduate Theses, Dissertations, and Problem Reports
Diesel oxidation catalysts (DOCs) are a viable exhaust aftertreatment alternative for alleviating regulated exhaust emissions of hydrocarbon (HC), carbon monoxide (CO), and particulate matter (PM) from diesel-fueled heavy-duty engines. This study was a part of the Diesel Emissions Control-Sulfur Effects (DECSE) program that was aimed at determining the impact of diesel fuel sulfur levels on diesel oxidation catalysts that were designed to lower brake-specific PM, HC, and CO emissions from on-highway trucks and buses in the 2002--2004 model years. The research focused on high-temperature DOCs installed on a Cummins ISM370 ESP engine, and low-temperature DOCs installed on a Navistar T444E …
Optimization Of A Roll Over Protective Structure (Rops) Using Nonlinear Finite Element Analysis, Adam Michael Gillispie
Optimization Of A Roll Over Protective Structure (Rops) Using Nonlinear Finite Element Analysis, Adam Michael Gillispie
Graduate Theses, Dissertations, and Problem Reports
The use of a conventional Roll Over Protective Structure CROPS) on farm tractors over the years has saved numerous lives and prevented countless injuries. By removing the ROPS, the tractor operators place themselves in unwarranted danger.;This led the National Institute for Occupational Safety and Health (NIOSH) and West Virginia University Mechanical and Aerospace Engineering to the development of a deployable ROPS, which could remain down to aid in required housing space for the tractor and prevent debris from striking the tractor operator while being driven.;This research effort focuses on the application of computer-aided design and analysis to structurally optimize the …
Three-Dimensional Image Reconstruction Of Skeletal Tissue From Computed Tomography, Sundareswar Bangalore Jayashekar
Three-Dimensional Image Reconstruction Of Skeletal Tissue From Computed Tomography, Sundareswar Bangalore Jayashekar
Graduate Theses, Dissertations, and Problem Reports
Edge Detection Techniques play a very important role in medical imaging. Pre-operative diagnosis of diseases such as cancer, tumors, bone fractures etc. depend on edge detection techniques to identify the malignant growths. In orthopedics, edge detection techniques are used in the reconstruction of the skeletal system from modalities such as MRI (magnetic resonance imaging) and CT (computed tomography).;In this thesis, we develop a simple process for the three dimensional image reconstruction of the human knee, starting from computed tomography scans. Designing a digital image processing technique which successfully separates the bone from the surrounding flesh and muscle tissue is the …
Computational Model Of Ductile Erosion By Single Particle Impact, Chandrakant Rai
Computational Model Of Ductile Erosion By Single Particle Impact, Chandrakant Rai
Graduate Theses, Dissertations, and Problem Reports
Erosion by solid particle impact is a common problem in many industrial applications. It results due to mechanical contact between the particle and the metal surface, which in turn result in potential material losses. Erosion of machine parts by the small solid particle entrained in liquid or gaseous working environment is a serious problem in many industrial applications. Numerous experiments have been conducted to obtain empirical relations for predicting material loss due to these impacts and to arrive at an appropriate material for a particular working environment. But with so many new materials being used for different applications, and operating …
Treatment Of Acid Mine Drainage With Weirton Steel Slags, Prashant Seshadri
Treatment Of Acid Mine Drainage With Weirton Steel Slags, Prashant Seshadri
Graduate Theses, Dissertations, and Problem Reports
Bed experiments were conducted to treat acid mine drainage with Weirton steel slag which contained 72.22% as Ca(OH)2 equivalent. The Acid Mine Drainage (AMD) sample was obtained from the T&T site located in northern West Virginia. The pH of the solution was 2.56 and the iron content was 89 ppm. The bed was constructed with tin-coated aluminum sheets and was 11&feet;8-1/4&inches; long, 2&inches; wide and 2&inches; high. The experiments were conducted by charging the bed half full with the slag particles (4 x 40 mesh) and then pumping AMD solution (T&T) through the bed. The flow rates used were 78 …
Dynamic Property Evaluation Of Frother, Yunkai Xia
Dynamic Property Evaluation Of Frother, Yunkai Xia
Graduate Theses, Dissertations, and Problem Reports
Fourteen solvents were evaluated through frothing test and laboratory flotation batch tests. A new frothing parameter, initial dynamic froth index (IDFI), is proposed to compare the frothability of solvent. IDFI is derived from initial retention time of froth instead of retention time. IDFI is defined as the limiting slope of the initial retention time versus concentration curves while the concentration approaches zero. IDFI value depends on chemical structure and molecular weight of the solvent. Combined with normalized frothability index (NFI), normalized collapse rate constant (NKc), hydrophilic-lipophilic balance (HLB) and dynamic froth index (DFI), IDFI can be a useful index in …
West Virginians' Perceptions And Use Of Complementary Medicine, Joshua David Blevins
West Virginians' Perceptions And Use Of Complementary Medicine, Joshua David Blevins
Graduate Theses, Dissertations, and Problem Reports
The purpose of this study was to determine how West Virginian's perceive and use complementary medicine. The first objective was to determine the frequency of respondents who had used at least one complementary therapy in the last year. The second objective was to determine the most commonly used complementary therapies among respondents. The third objective was to examine the demographic characteristics of respondents who used complementary therapies. The fourth objective was to determine if certain types of medical problems led to complementary medicine use among respondents. The fifth objective was to show the percentage of users who informed their physician …
Evidence For A Systemic Embryotoxic Effect Of Early Luteal Regression In The Ewe, Beth Alyson Costine
Evidence For A Systemic Embryotoxic Effect Of Early Luteal Regression In The Ewe, Beth Alyson Costine
Graduate Theses, Dissertations, and Problem Reports
Experiments were performed to determine if a short-lived corpus luteum was embryotoxic in ewes given supplemental progesterone and the route of transfer of embryotoxic products. Mated ewes were lutectomized or sham lutectomized on day 4 after estrus. Following surgery, ewes received saline or PGF 2alpha through days 6 or 7. Pregnancy rate was reduced after treatment with PGF2alpha (P < 0.001) compared to controls and was increased in PGF2alpha-treated ewes by lutectomy (P < 0.05). Mated ewes with bilateral ovulations were unilaterally lutectomized, and each uterine horn was ligated to eliminate intercornual flow on day 4 after estrus. Treatment with PGF2alpha on day 5 through 8 reduced pregnancy rates (P < 0.01), but embryonic survival did not differ in the uterine horns ipsilateral or contralateral to the regressing CL. The regressing CL is embryotoxic in progesterone-supplemented ewes, and embryotoxic luteal products have been shown to act by non-local pathways.
Factors Influencing Brook Trout (Salvelinus Fontinalis ) Abundance In Forested Headwater Streams With Emphasis On Fine Sediment, James Philip Hakala
Factors Influencing Brook Trout (Salvelinus Fontinalis ) Abundance In Forested Headwater Streams With Emphasis On Fine Sediment, James Philip Hakala
Graduate Theses, Dissertations, and Problem Reports
The influence and relative importance of fine sediment on wild brook trout (Salvelinus fontinalis) population size was assessed. Brook trout production in headwater streams was inversely proportional to substrate permeability in one of two years, suggesting substrate composition influenced production. Results suggest the critical fine sediment size for brook trout in this study, is between 0.063 mm and 1.0 mm. Further, fine sediment (<0.063 mm) should not exceed 0.6--1.0% of spawning substrate, or negative population effects may be incurred. Under normal flow conditions, fine sediment was a principal determinant of juvenile trout abundance relative to other physical and biological factors. Adult trout abundance was principally a function of stream discharge, and is potentially further influenced by fine sediment impacts on juvenile recruitment. Spatially restricted food resources, created by drought-induced low flows in year 2 of the study, are believed to have over-powered mechanisms influencing trout abundance under normal flows.
Evaluation Of Maternal Serum Triple Screen As An Identifier Of Trisomy 21 Pregnancy, Jonnie Ann Lane
Evaluation Of Maternal Serum Triple Screen As An Identifier Of Trisomy 21 Pregnancy, Jonnie Ann Lane
Graduate Theses, Dissertations, and Problem Reports
Maternal serum triple screen is used to identify women less than 35 years of age who are at an increased risk of having a fetus with Down syndrome. The screen identifies 5% of women tested as being at an increased risk but only 2--3% of these women actually have a fetus with chromosome abnormalities, indicating a high false positive rate. Medical records for 900 cases referred for maternal serum triple screen and maternal age were reviewed. The percentages of abnormal karyotypes in the two populations were not significantly different from each other or the expected value. While 3% of all …
Essential Oil Treatments To Control Varroa Destructor Anderson And Trueman 2000 (Formerly Varroa Jacobsoni Oudemans 1904) (Mesostigmata: Varroidae), Maria Mercedes Vargas-Sarmiento
Essential Oil Treatments To Control Varroa Destructor Anderson And Trueman 2000 (Formerly Varroa Jacobsoni Oudemans 1904) (Mesostigmata: Varroidae), Maria Mercedes Vargas-Sarmiento
Graduate Theses, Dissertations, and Problem Reports
Varroa destructor Anderson and Trueman is the most serious pest of the honey bee Apis mellifera L. Varroa mites transmit several viruses, bacteria and fungi to the bees, which results in a condition called parasitic mite syndrome. There are no completely reliable treatments available to control the mite. Fifty-one beehives were artificially infested with varroa mites by using three different methods. Observations on mite population growth during three infestation attempts were made. All colonies were inspected for the presence of the small hive beetle, Aethina tumida Murray, no beetles were found. Thirty-five colonies were used to establish the efficacy of …
Mapping Appalachia, Jennifer Hall Boggess
Mapping Appalachia, Jennifer Hall Boggess
Graduate Theses, Dissertations, and Problem Reports
The complexities of natural and human events that make up the history of a place also create components of its image. Images, even those that are meant to describe limited, specific information, often reveal more than that which they were designed to tell. The maps that have been used in conjunction with traditional notions of landscape painting suggest that there is no single way to understand a place. They also hint of something ineffable but true emerging from their forms. The history of movement of people and natural forces, the arriving and leaving of individuals and cultures change the landscape. …
Effect Of Manufacturing Process Conditions On The Durability Of Pultruded Vinyl Ester/Glass Composites, Chrystal Ann Garland
Effect Of Manufacturing Process Conditions On The Durability Of Pultruded Vinyl Ester/Glass Composites, Chrystal Ann Garland
Graduate Theses, Dissertations, and Problem Reports
Fiber reinforced polymer composites, FRPs, have an increased role in structural applications. Environmental durability is important for the design of structural components. Processes such as pultrusion are cost-effective methods of producing FRPs. This research focused on the durability of pultruded FRP with different processing conditions. Pultruded samples made at different line speeds (4, 8, and 12 ipm) were immersed in water at 25, 50, and 85°C for varying lengths of time and the mechanical properties evaluated via 3-point bending tests. A reduction in strength was observed for the samples immersed in 50 and 85°C water, with the largest reduction occurring …
Embattled, Mark Tobin Moore
Embattled, Mark Tobin Moore
Graduate Theses, Dissertations, and Problem Reports
Paintings in "Embattled" contain images of Second World War American soldiers from the 1998 motion picture, Saving Private Ryan , as well as from 1960s era DC and Marvel brand comics such as Sgt. Fury and His Howling Commandos, GI Combat, and Sgt. Rock. Also included are photocopies or real pieces of wallpaper, flowery fabrics, and snippets of text from popular culture sources. Specific paintings are discussed in relation to personal motivation regarding the use of selected visual metaphors and collage content, as well as the manipulation of traditional and nontraditional support materials such as canvas or pegboard. Creative influences …
Optimization Of A Helicon Plasma Source For Maximum Density With Minimal Ion Heating, Matthew M. Balkey
Optimization Of A Helicon Plasma Source For Maximum Density With Minimal Ion Heating, Matthew M. Balkey
Graduate Theses, Dissertations, and Problem Reports
Measurements of electron density and perpendicular ion temperatures in an argon helicon plasma are presented for five different antennas: A Nagoya type III antenna, a double-saddle antenna, a 19 cm long m = +1 helical antenna, a 30 cm long m = +1 helical antenna and a 19 cm m = +1 helical antenna with wide straps. Electromagnetic wave measurements in the range from 100 kHz to 50 MHz are also presented for a wide range of plasma parameters. The data show a clear transition between RF power coupling to the plasma to create density and coupling to heat ions. …
Evaluating Mandatory Parent Education For Divorcing Couples With Children, Brian John Krolczyk
Evaluating Mandatory Parent Education For Divorcing Couples With Children, Brian John Krolczyk
Graduate Theses, Dissertations, and Problem Reports
Court-mandated parent education for divorcing parents with children has become a standard practice in recent years. The West Virginia State Legislature voted to mandate parent education programs in all of West Virginia effective January, 2000. Research suggests parental conflict is a major factor contributing to adjustment difficulties reported by children. Generally, parent education programs for divorcing couples with children focus on adjustment issues for parents and children as they navigate a demanding period of family change. A literature review of current parent education programs in the United States revealed programs differ in teaching methods used and curriculum. It is reported …
Psychophysiological Responses Of Older Adults To An Anxiety -Evoking Stimulus, Angela W. Lau
Psychophysiological Responses Of Older Adults To An Anxiety -Evoking Stimulus, Angela W. Lau
Graduate Theses, Dissertations, and Problem Reports
The purpose of this study was to clarify the relation between anxiety and physiological responses in older adults as compared to younger adults. Heart rate (HR), skin conductance level (SCL), skin conductance response (SCR), systolic blood pressure (SBP), and diastolic blood pressure (DBP) were obtained before, during, and after exposure to a Stroop color-word naming task and a snake video from 46 female younger adults (age 18--30) and 28 female older adults (age 65--80) who were designated as either snake fearful or snake nonfearful. No significant group differences were observed on physiological measures to baseline one or during the snake …
Encoding Of Periodic Skin Stimuli By Spinal Dorsal Horn Neurons, Jeffrey J. Lawson
Encoding Of Periodic Skin Stimuli By Spinal Dorsal Horn Neurons, Jeffrey J. Lawson
Graduate Theses, Dissertations, and Problem Reports
The encoding of vibrotactile pitch by neurons of the somatosensory system has been investigated at many levels of the neuraxis. These studies, however, have not extended to the spinal dorsal horn, which is known to process low threshold mechanoreceptive input. The studies presented here were designed to assess the possible role of the dorsal horn in the encoding of vibrotactile pitch. To accomplish this task, dorsal horn single unit extracellular recordings were obtained during periodic electrical and sinusoidal mechanical stimulation of their receptive fields. Techniques used in classifying vibrotactile pitch encoding were similar to those used in other somatosensory nuclei, …
Integrating Spatial And Spectral Information For Automatic Feature Identification In High -Resolution Remotely Sensed Images, Jong Yeol Lee
Integrating Spatial And Spectral Information For Automatic Feature Identification In High -Resolution Remotely Sensed Images, Jong Yeol Lee
Graduate Theses, Dissertations, and Problem Reports
This research used image objects, instead of pixels, as the basic unit of analysis in high-resolution imagery. Thus, not only spectral radiance and texture were used in the analysis, but also spatial context. Furthermore, the automated identification of attributed objects is potentially useful for integrating remote sensing with a vector-based GIS.;A study area in Morgantown, WV was chosen as a site for the development and testing of automated feature extraction methods with high-resolution data. In the first stage of the analysis, edges were identified using texture. Experiments with simulated data indicated that a linear operator identified curved and sharp edges …
Mycorrhizal Roles In Broomsedge Plants Under Phosphorus Limitation And Aluminum Toxicity, Jianchang Ning
Mycorrhizal Roles In Broomsedge Plants Under Phosphorus Limitation And Aluminum Toxicity, Jianchang Ning
Graduate Theses, Dissertations, and Problem Reports
This dissertation examined roles of arbuscular mycorrhizal fungi, of which Glomus clarum is the primary species, in broomsedge (Andropogon virginicus) plants under limited Pi and elevated Al conditions in four studies. The inoculum originated from an acidic coal-mining site in Morgantown, WV. The inoculum of Glomus clarum from INVAM collection, which originated from an alkaline coal-mining site in WV, was also used in two of the studies. Plants were grown in an acid-washed sand culture system with a modified Hoagland's nutrient solution in a growth chamber.;Mycorrhizal fungal colonization pronouncedly enhanced growth of broomsedge plants under limited Pi and/or elevated Al …
Coupled Nonlinear Dynamical Systems, Hongyan Sun
Coupled Nonlinear Dynamical Systems, Hongyan Sun
Graduate Theses, Dissertations, and Problem Reports
In this dissertation, we study coupled nonlinear dynamical systems that exhibit new types of complex behavior. We numerically and analytically examine a variety of dynamical models, ranging from systems of ordinary differential equations (ODE) with novel elements of feedback to systems of partial differential equations (PDE) that model chemical pattern formation. Chaos, dynamical uncertainty, synchronization, and spatiotemporal pattern formation constitute the primary topics of the dissertation. Following the introduction in Chapter 1, we study chaos and dynamical uncertainty in Chapter 2 with coupled Lorenz systems and demonstrate the existence of extreme complexity in high-dimensional ODE systems. In Chapter 3, we …
Burnout, Stress And Social Support Among Doctoral Students In Psychology, Kelli Lee Weaver
Burnout, Stress And Social Support Among Doctoral Students In Psychology, Kelli Lee Weaver
Graduate Theses, Dissertations, and Problem Reports
The relationships between burnout, stress, and social support have been evaluated across a number of populations within the helping professions. However, no published studies have addressed the relationships between the aforementioned variables among doctoral students in psychology. As a result, the current study attempted to expand knowledge of the relationships between burnout, stress, and social support specifically among Clinical, Counseling, and School Psychology doctoral students. Results suggested that Clinical, Counseling, and School Psychology doctoral students are generally similar in their reports of burnout, stress, and social support. However, several differences were observed between the groups, and these differences are reported. …