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Articles 2581 - 2610 of 5172
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Pedagogical Practices: Nurturing And Maintaining Democratic Habits, Lucretia Marie Hubler-Larimore
Pedagogical Practices: Nurturing And Maintaining Democratic Habits, Lucretia Marie Hubler-Larimore
Graduate Theses, Dissertations, and Problem Reports (ETD)
This case study examined the pedagogical practices of four teachers of one public elementary school whose mission seeks to nurture and maintain democratic habits for participation in a democratic society. Historically, public schools have been charged with the duty of preparing young minds to live within in a democratic society and as such this argument has been cited as one of the fundamental reasons for providing public financial support of schools. The exploration of how pedagogical choices and curriculum development were used to create opportunities for experiencing democracy was considered within the specific social contexts of the school. Contexts considered …
Sensor Fusion Based Fault-Tolerant Attitude Estimation Solutions For Small Unmanned Aerial Vehicles, Jason Nicholas Gross
Sensor Fusion Based Fault-Tolerant Attitude Estimation Solutions For Small Unmanned Aerial Vehicles, Jason Nicholas Gross
Graduate Theses, Dissertations, and Problem Reports (ETD)
Navigation-grade inertial sensors are often too expensive and too heavy for use in most Small Unmanned Aerial Vehicle (SUAV) systems. Low-cost Micro-Electrical-Mechanical-Systems (MEMS) inertial sensors provide an attractive alternative, but currently do not provide an adequate navigation solution alone due to the presence of sensor bias. Toward addressing this problem, this research focuses on the development and experimental evaluation of sensor fusion algorithms to combine partially redundant information from low-cost sensor to achieve accurate SUAV attitude estimation. To conduct this research, several sets of SUAVs flight data that include measurements from a low-cost MEMS based Inertial Measurement Unit, a Global …
Experimental Characterization Of Fuel Cell Gas Turbine Power System And Determination Of Optimal Trajectories Of Operation Using A Model Predictive Controller, Bernardo Restrepo
Experimental Characterization Of Fuel Cell Gas Turbine Power System And Determination Of Optimal Trajectories Of Operation Using A Model Predictive Controller, Bernardo Restrepo
Graduate Theses, Dissertations, and Problem Reports (ETD)
Hybrid Performance (HyPer) hardware simulation facility installed in the National Energy Technology Laboratory (NETL), U.S. Department of Energy is a hardware in the loop technology that couples a real recuperated gas turbine cycle with a Solid Oxide Fuel Cell (SOFC) Model. The system is composed of a gas turbine, two high-efficiency recuperators, three different bypasses, and several associated pressure vessels and pipes that represent the volumes and flow impedance of the fuel cell. The real-time fuel cell model is used to control a gas burner which replicates the thermal output of a SOFC. Control of thermal energy in and out …
Hydrothermal Pretreatment Of Biomass Samples For Producing Energy Efficient Hydrogen Electrochemically, Laila P. Akkineni
Hydrothermal Pretreatment Of Biomass Samples For Producing Energy Efficient Hydrogen Electrochemically, Laila P. Akkineni
Graduate Theses, Dissertations, and Problem Reports (ETD)
In this thesis, electrochemical production of hydrogen (H2) gas using two biomass materials, namely microcrystalline cellulose and wood sawdust, has been investigated. Since as obtained samples did not show meaningful activity in hydrogen production, these samples were subjected to hydrothermal pretreatment (HTP) in an autoclave using water as solvent at 200° C and up to 500 psi pressure. The HTP samples produced activity as high as that of high surface area activated carbon (BP2000) for producing H2 at energy efficient voltages.;To understand the changes produced by HTP, structural properties of the parent as well as the HTP samples were determined …
A Comparison Of Methods For Evaluating Descriptive Analyses, Ellen N. Brosh
A Comparison Of Methods For Evaluating Descriptive Analyses, Ellen N. Brosh
Graduate Theses, Dissertations, and Problem Reports (ETD)
Descriptive analyses, in which observers record behavior in the natural environment, are the most common procedure for completing functional behavioral assessments in schools. Because numerous studies have demonstrated that descriptive analyses do not consistently identify response-reinforcer relations, the frequent use of these assessments by educators is problematic. Attempts to improve the accuracy of descriptive analyses have focused on methods for analyzing descriptive assessment data. The current study compared three methods of analysis commonly cited in the behavior-analytic literature to determine whether these analyses produced similar results. Additionally, we included a treatment component to evaluate whether these methods of analysis produced …
Clinician Detection Of Depression In Late Life, Jeffrey J. Gregg
Clinician Detection Of Depression In Late Life, Jeffrey J. Gregg
Graduate Theses, Dissertations, and Problem Reports (ETD)
Depression in late life is associated with decreased cognitive functioning, increased social and functional impairment, and overall increased mortality. Because of these negative health implications, the accurate assessment of late-life depression is a critical public health issue. Prior research has consistently demonstrated that older adults typically seek and receive mental health services from general medical settings instead of mental health specialty clinics. Unfortunately, many studies have shown that primary care physicians often fail to recognize depression. In addition, older adults are less likely than younger adults to endorse symptoms of sadness or dysphoria. Those with cognitive impairment are also less …
Relationships Among Fish Assemblages, Hydroperiods, Drought, And American Alligators Within Palustrine Wetlands Of The Blackjack Peninsula, Aransas National Wildlife Refuge, Texas, Darrin M. Welchert
Relationships Among Fish Assemblages, Hydroperiods, Drought, And American Alligators Within Palustrine Wetlands Of The Blackjack Peninsula, Aransas National Wildlife Refuge, Texas, Darrin M. Welchert
Graduate Theses, Dissertations, and Problem Reports (ETD)
The following thesis contains two chapters. In Chapter 1, I have reviewed and summarized literature pertaining to fishes and habitats of palustrine wetlands, the influence of hydroperiods on wetland fishes, the impacts of drought on wetland fishes, the importance of American alligators as ecological engineers of fish habitats within wetlands, and fish sampling within wetland habitats. Chapter 2 is a manuscript representing my thesis research. In this study, primary focus is placed on how fish diversity and how fish abundances of palustrine wetlands are influenced by drought conditions within the Blackjack Peninsula of the Aransas National Wildlife Refuge in southwestern …
Quantifying The Reliability Of Latent Fingerprint Matching Via Signal Detection Theory, Eric J. Widman
Quantifying The Reliability Of Latent Fingerprint Matching Via Signal Detection Theory, Eric J. Widman
Graduate Theses, Dissertations, and Problem Reports (ETD)
The definition of standards in fingerprint identification is currently an issue of discussion in the field. Quantitative standards have been used in the past to provide justifications for conclusions; however, a scientific basis for relying on numerical standards alone currently does not exist. The tradeoff for this combined approach is that conclusions are based on a conclusion that is left to the judgment of the examiner and may not be repeatable. To test the implementation of thresholds for conclusion, this research studied the effects of only considering concrete data in quantitative form. In this case, signal detection theory is applied …
Spatial Features Of Okun's Law Using U.S. Data, Casto Martin Montero Kuscevic
Spatial Features Of Okun's Law Using U.S. Data, Casto Martin Montero Kuscevic
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation addresses issues related to the regional labor market interactions within the United States using the Okun's Law as theoretical framework. In chapter one I estimate the state-level Okun's law after accounting for national changes and spatial spillovers. The estimates show that state-specific growth has a small effect on state unemployment rate changes. State growth experiences that are part of national or regional growths have a substantially bigger effect on state unemployment rates. I compare my results with international data which show a much larger association after accounting for time effects and spatial spillovers; implying that uncoordinated state-level demand …
Characterizing Textural Attributes Of Rainbow Trout, Oncorhynchus Mykiss, Fillets As Affected By Age, Sterility, And Storage Regimen, Aunchalee Aussanasuwannakul
Characterizing Textural Attributes Of Rainbow Trout, Oncorhynchus Mykiss, Fillets As Affected By Age, Sterility, And Storage Regimen, Aunchalee Aussanasuwannakul
Graduate Theses, Dissertations, and Problem Reports (ETD)
Trout fillets, subjected to refrigeration (4°C; 3 or 7 d) by frozen storage (-25°C; 0 or 30 d) combinations, were cooked; texture, determined by a novel, variable-blade (VB) attachment, was compared with a widely-used Allo-Kramer shear (AK) attachment to determined its sensitivity in detecting variation in fillet texture. Instrumental texture was related to sensory measurements to determine attachments' accuracy in assessing cooked fillet texture. Weight of raw fillets decreased after 30-d frozen storage. Fillet weight further decreased after cooking. Moisture content decreased while fat content remained constant. The AK attachment detected differences in energy of shear, which decreased after 30-d …
Exploring Influences On Parent Support For Child Physical Activity In West Virginia, Jill A. Nolan
Exploring Influences On Parent Support For Child Physical Activity In West Virginia, Jill A. Nolan
Graduate Theses, Dissertations, and Problem Reports (ETD)
Physical activity enhances child health. On average, boys are more active than girls. The causes of this disparity are not fully known, but are likely due to factors at multiple levels including individual, interpersonal, organizational, community, and policy. Further, gender stereotypes that associate males with sports and physical activity behavior may also influence child physical activity. What is known is that girls benefit from physical activity just as boys do, and that parental support for boys' physical activity is generally higher than is parental support for girls. Additionally, parental supportive behavior for childhood physical activity is positively associated with increased …
A Tailored Wellness Intervention For College Students Using Internet-Based Technology, Alessandro Quartiroli
A Tailored Wellness Intervention For College Students Using Internet-Based Technology, Alessandro Quartiroli
Graduate Theses, Dissertations, and Problem Reports (ETD)
Objective. The purpose of this study was to develop and implement a theory-based, computertailored feedback system for freshman students at a large, public university. The objective was to understand its potential effectiveness in helping the university in enhancing student wellness. Participants: Sixty-two college students, out of the over 1,300 contacted, completed the eight week intervention.;Methods. The participants were randomly assigned into two groups and received the survey three times, consistently receiving normative or personalized feedback.;Results. Mainly constituted by freshman, Caucasian, and normal weight individuals, the participating sample was generally healthy. Repeated-measure ANOVAs were run and some small significant differences were …
The Evaluation Of The Use Of A Paper Tracking Form To Improve Provider Adherence To Lipid Guidelines, Diane Ladd
The Evaluation Of The Use Of A Paper Tracking Form To Improve Provider Adherence To Lipid Guidelines, Diane Ladd
Graduate Theses, Dissertations, and Problem Reports (ETD)
Heart disease is the leading cause of death in men and women in the United States. Significant research into the risk factors for cardiovascular disease has been done, and the effect of hyperlipidemia on cardiovascular risk has been well documented. Recent research has shown that there is a lack of adherence to lipid guidelines by primary care providers. Failure to follow clinical guidelines for lipid disorders leads to increased cardiovascular morbidity and mortality. The objective of the project was to evaluate whether a simple, paper-based, lipid tracking form could improve provider adherence to current lipid guidelines. This descriptive study used …
Apical Leakage Of A New Root Canal Sealer, Nathan E. Beam
Apical Leakage Of A New Root Canal Sealer, Nathan E. Beam
Graduate Theses, Dissertations, and Problem Reports (ETD)
A new endodontic root canal sealer, iRoot SP, has been introduced. This bioceramic root canal sealer claims to be a superior sealing and filling material for root canals. Although the manufacturer advocates the use of a single cone technique with this sealer, they state that it may also be used with lateral compaction and warm vertical condensation. The purpose of this study was to compare in vitro apical microleakage of iRoot SP root canal sealer to AH Plus sealer when used in conjunction with a single cone technique and lateral compaction technique.;Eighty six mesial roots of mandibular molar teeth with …
Development Of A Flexible Load-Based Micro-Indentation System, Chia-Nung Chou
Development Of A Flexible Load-Based Micro-Indentation System, Chia-Nung Chou
Graduate Theses, Dissertations, and Problem Reports (ETD)
Various types of indentation methods have been used for the determination of mechanical properties of material; nevertheless, conventional indentation test units are restricted by the geometry of the samples. It is difficult to obtain the mechanical properties from non-flat surface objects. In this research, based on an in-house developed load-based micro-indentation test method, a suitable flexible micro-indentation system was developed to determine material mechanical properties such as hardness and elastic modulus of test samples with arbitrary surface geometry.;The focus is in developing a flexible micro-indentation unit. Due to nonlinearity of the system compliance and possible change of indentation direction during …
The Impact Of Relative Permeability On Horizontal Well Type Curve Analysis In Coalbed Methane Reservoirs, Kyle Remington Clark
The Impact Of Relative Permeability On Horizontal Well Type Curve Analysis In Coalbed Methane Reservoirs, Kyle Remington Clark
Graduate Theses, Dissertations, and Problem Reports (ETD)
Coalbed methane (CBM) production has become increasingly profitable in recent years. Production prediction and analysis is challenging in these reservoirs due to two-phase flow conditions. A CBM reservoir is classified as an unconventional gas reservoir due to its unique flow and storage characteristics. Software simulators are by far the best way to predict production performance in CBM reservoirs.;This study investigated the impact of relative permeability on production type curves of horizontal wells in CBM reservoirs. Both relative permeability to gas and water were analyzed using numerical models. The simulation model used for this study is Eclipse Office due to its …
Three Essays On The Political Economy Of Foreign Aid Practices In The Development Assistance Committee Countries, Jared A. Pincin
Three Essays On The Political Economy Of Foreign Aid Practices In The Development Assistance Committee Countries, Jared A. Pincin
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation is a collection of essays on the political economy of foreign aid in the Development Assistance Committee (DAC) countries. Chapter 1 provides an overview of the foreign aid literature, focusing on the practice of aid tying and foreign aid's impact on political support between aid donor and recipient countries. Chapter 2 investigates the hypothesis that institutional factors such as fragmentation of the executive power and the position of government vis-a-vis legislative composition within the governments of DAC countries help explain why levels of tied aid remain significantly above zero despite the push in the development community to untie …
The Association Of Markers Of Endothelial Dysfunction And Incident Diabetes Mellitus, Hypertension, Chronic Kidney Disease And Cardiovascular Mortality, Loretta Rena Cain
The Association Of Markers Of Endothelial Dysfunction And Incident Diabetes Mellitus, Hypertension, Chronic Kidney Disease And Cardiovascular Mortality, Loretta Rena Cain
Graduate Theses, Dissertations, and Problem Reports (ETD)
In recent years several mechanistic animal studies have proposed new insights, including the role of endothelial dysfunction, in the pathogenesis of common cardiometabolic disorders such as diabetes mellitus, hypertension, chronic kidney disease (CKD) and cardiovascular disease (CVD). However, few studies in humans have followed up these emerging leads from animal models. Because traditional risk factors have been shown not to completely explain all the observed risk of cardiometabolic outcomes in the general population, there is a need to examine novel mechanisms such as endothelial dysfunction in population-based studies, so as to identify new ways of preventing and/or treating these diseases. …
Nanosize Effects In The Magnetic Properties Of The Two Layered Hydroxides Of Nickel, James D. Rall
Nanosize Effects In The Magnetic Properties Of The Two Layered Hydroxides Of Nickel, James D. Rall
Graduate Theses, Dissertations, and Problem Reports (ETD)
Investigations of properties of materials with lower lattice dimensionality (one and two dimensions) often provides good opportunity to advance physics since solutions to corresponding theoretical models are more easily obtained. In this work, results on magnetic properties of two quasi two-dimensional (2D) systems viz. the layered hydroxides of nickel, beta-Ni(OH)2 and alpha-Ni(OH)2, are reported. For beta-Ni(OH)2, there have been conflicting reports in the literature whether the magnetic ordering is ferromagnetic or antiferromagnetic. For the less stable alpha-Ni(OH) 2 with the larger spacing between the layers, the nature of magnetism is largely unexplained. Therefore, the results and their interpretation present here …
Nanocapillary Membrane Devices: A Study In Electrokinetic Transport Phenomena, Jarrod Schiffbauer
Nanocapillary Membrane Devices: A Study In Electrokinetic Transport Phenomena, Jarrod Schiffbauer
Graduate Theses, Dissertations, and Problem Reports (ETD)
There is considerable interest in developing micro-total analysis systems, also known as lab-on-a-chip devices, for applications in chemical and biological analysis. These devices often employ electrokinetic transport phenomena to move, mix, concentrate and separate dissolved species. The details of these phenomena in micro- and nanometer scale geometries are not fully understood; consequently, the basic principles of device operation are often unclear. For example, nanocapillary membranes (NCM) and other nanometer-sized passages can exhibit charge-selectivity and rectification effects similar to those observed in biological membranes. This dissertation addresses several issues related to ion transport in these membranes. Leading-order 1D steady-state models for …
Scenic Design Process For The Compleat Female Stage Beauty, Andrew K. Moeggenborg
Scenic Design Process For The Compleat Female Stage Beauty, Andrew K. Moeggenborg
Graduate Theses, Dissertations, and Problem Reports (ETD)
This document is an account of my scenic design process for The Compleat Female Stage Beauty at West Virginia University Division of Theatre and Dance in the Fall of 2010. This thesis will detail the design process from the initial reading of the script, through meetings with the director and fellow designers, and the process and challenges of constructing models, renderings and the final scenery for the production.
The Influence Of Interface Friction And W/H Ratio On The Violence Of Coal Specimen Failure, Simon H. Prassetyo
The Influence Of Interface Friction And W/H Ratio On The Violence Of Coal Specimen Failure, Simon H. Prassetyo
Graduate Theses, Dissertations, and Problem Reports (ETD)
Violent failures of coal pillars, known in practice as coal mine bumps, have long been a subject of investigation. Many field investigations have considered geological conditions that create high stress in the pillar as the main causative factor leading to bumps. In recent years, stress and constraint have been shown to be necessary in producing coal burst.;This research investigated the influence of interface friction and w/h ratio on the violence of coal specimen failure. In satisfying this objective, three violent failure parameters such as peak SPL, core zone failure, and ultimate stress were used to assess the violence of failure. …
Structural Responses And Finite Element Modeling Of Hakka Tulou Rammed Earth Structures, Daniel Sranislawski
Structural Responses And Finite Element Modeling Of Hakka Tulou Rammed Earth Structures, Daniel Sranislawski
Graduate Theses, Dissertations, and Problem Reports (ETD)
Hakka Tulous are rammed earth structures that have survived the effects of aging and natural elements upwards of even over a thousand years. These structures have housed the Hakka people of the Fujian Province, China in natural yet modern housing that has provided benefits over newer building materials. The key building material, rammed earth, which is used for the walls of the Hakka Tulou structures, has provided structural stability along with thermal comfort to the respective inhabitants of the Hakka Tulous.;Through material testing and analysis this study has examined how the Tulou structures have maintained their structural stability while also …
Tailoring Multi-Component Catalysts On Carbon Supports For Fischer-Tropsch Products In The Kerosene Range, Joshua B. Welshans
Tailoring Multi-Component Catalysts On Carbon Supports For Fischer-Tropsch Products In The Kerosene Range, Joshua B. Welshans
Graduate Theses, Dissertations, and Problem Reports (ETD)
The effects of varying the loading of four promoters on activated carbon supported iron catalysts were investigated. The base case catalyst studied consists of 6 wt% Mo, 16 wt% Fe, 0.8 wt% Cu and 0.9 wt% K. Molybdenum loadings of 0 wt%, 3 wt%, 6 wt% and 12 wt% were studied along with iron loadings of 0 wt%, 8 wt%, 16 wt% and 32%, copper loadings of 0 wt%, 0.4 wt%, 0.8 wt% and 1.6 wt%, and potassium loadings of 0 wt%, 0.45 wt%, 0.9 wt% and 1.8 wt%. The reactor conditions used were 300ºC, 300 psig, and 6 Nl/gcat/h. …
Costume Design Process For "The Compleat Female Stage Beauty", Hannah Wold
Costume Design Process For "The Compleat Female Stage Beauty", Hannah Wold
Graduate Theses, Dissertations, and Problem Reports (ETD)
This paper documents my process for the costume design of West Virginia University's Fall 2010 production of The Compleat Female Stage Beauty. It required advance organization and planning for a costume shop of our size to produce a show of this scale and depth, and I used a process I had developed on previous productions to keep the scope of the build within the realms of the possible, while maintaining my vision of opulent costumes for the play that aided in creating the setting of the play, in conjunction with the scenic and lighting design.
Implementation Of A Helicopter Flight Simulator With Individual Blade Control, Andrew G. Zinchiak
Implementation Of A Helicopter Flight Simulator With Individual Blade Control, Andrew G. Zinchiak
Graduate Theses, Dissertations, and Problem Reports (ETD)
Nearly all modern helicopters are designed with a swashplate-based system for control of the main rotor blades. However, the swashplate-based approach does not provide the level of redundancy necessary to cope with abnormal actuator conditions. For example, if an actuator fails (becomes locked) on the main rotor, the cyclic inputs are consequently fixed and the helicopter may become stuck in a flight maneuver. This can obviously be seen as a catastrophic failure, and would likely lead to a crash.;These types of failures can be overcome with the application of individual blade control (IBC). IBC is achieved using the blade pitch …
Development Of A Real-Time High-Resolution 3d Ultrasound Imaging System, Cesar Augusto Sandoval Leon
Development Of A Real-Time High-Resolution 3d Ultrasound Imaging System, Cesar Augusto Sandoval Leon
Graduate Theses, Dissertations, and Problem Reports (ETD)
In this work a real-time high-resolution 3D ultrasound imaging system is developed, allowing the 3D acquisition and imaging of high-resolution ultrasound data for biomedical applications. The system uses ultrasound transducers in the ranges of 30 to 100 MHz, and allows full access of the radiofrequency (RF) ultrasound data for the 3D image reconstruction. This work includes the development of two graphical user interfaces in C++ to interact with a high-resolution ultrasound system and to image the high-resolution ultrasound data. In addition, a methodology is described and implemented in the system for 3D ultrasound reconstruction and visualization. The development of these …
Improving Student Coaches' Learning Through Teaching Reflective Techniques, Wesley R. Meeteer Ii
Improving Student Coaches' Learning Through Teaching Reflective Techniques, Wesley R. Meeteer Ii
Graduate Theses, Dissertations, and Problem Reports (ETD)
The purpose of this research was to examine how teaching reflective concepts and directing reflective writing would influence student coaches' (SC) level of reflective writing in a one semester coaching internship course. A Multiple baseline format was used to implement the intervention. The intervention used five reflective ideas to try and enhance the level of SCs' reflective abilities including; (a) teaching the SCs a reflective cycle, b) introducing SCs to high levels of quality reflective writing, (c) allowing SCs to assess the level of reflection their personal journals, (d) having SCs write reflective statements within the five reflective levels of …
What Makes Good Climbing Rock? A Petrographic, Structural, And Mechanical Investigation Of The Lower Nuttall Sandstone In The New River Gorge, West Virginia, Katelyn A. Huffman Olcott
What Makes Good Climbing Rock? A Petrographic, Structural, And Mechanical Investigation Of The Lower Nuttall Sandstone In The New River Gorge, West Virginia, Katelyn A. Huffman Olcott
Graduate Theses, Dissertations, and Problem Reports (ETD)
The New River Gorge National River (NERI) consists of 300 km2 of public land including an 85 km length of the New River, covering parts of Summers, Raleigh, and Fayette counties in West Virginia (National Park Service, 2006). NERI is known for world class rock climbing because the Pennsylvanian lower Nuttall Sandstone of the Pottsville Group forms 15 to 30 m high cliffs along the gorge walls, containing more than 1500 documented climbing routes. This project investigates why the lower Nuttall Sandstone in NERI creates one of the premiere climbing areas in the Eastern United States, and why the lower …
From Peasant To Pariah: Changing English Perceptions Of The Irish From The 1820s Through The 1860s, Traci J. Scully
From Peasant To Pariah: Changing English Perceptions Of The Irish From The 1820s Through The 1860s, Traci J. Scully
Graduate Theses, Dissertations, and Problem Reports (ETD)
While the historiography of English perceptions of the Irish in the later period of the Victorian era is extensive, there is a dearth of research in tracing the origins of these perceptions. The connection between England and Ireland dates back centuries, and the relationship was neutral at best and extremely violent at worst. Historians such as L. Perry Curtis have analyzed the mass media of these later decades to argue that the English saw their neighbors as subhuman creatures in the racial hierarchy.;However, this image did not emerge from a single event, but rather evolved over the tumultuous earlier decades …