Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Mechanical engineering (35)
- Civil engineering (20)
- Electrical engineering (20)
- Clinical psychology (19)
- Computer science (13)
-
- Public health (13)
- Chemical engineering (12)
- Economics (12)
- Materials science (12)
- Aerospace engineering (11)
- Analytical chemistry (10)
- Animal sciences (10)
- Teacher education (10)
- Aquatic sciences (9)
- Educational leadership (9)
- Higher education (9)
- Petroleum engineering (9)
- Pharmaceutical sciences (9)
- Physiology (9)
- Behavioral psychology (8)
- Dentistry (8)
- Ecology (8)
- Environmental science (8)
- Forestry (8)
- Geology (8)
- Natural resource management (8)
- Experimental psychology (7)
- Industrial engineering (7)
- International relations (7)
- Mining engineering (7)
Articles 1 - 30 of 362
Full-Text Articles in Entire DC Network
Variables That Predict Burnout Among Sex Offender Treatment Providers: Work Setting, Gender, Work Hours, Jennifer Pravlik
Variables That Predict Burnout Among Sex Offender Treatment Providers: Work Setting, Gender, Work Hours, Jennifer Pravlik
Graduate Theses, Dissertations, and Problem Reports
Psychological treatment of the sexual offender population continues to be an arduous task for therapists. There is evidence that many therapists will experience burnout at some point during their careers. Providing treatment in a burned out state can cause harm to the therapist, client, and community (Barnett, Baker, Elman, & Schoener, 2007). It is necessary to determine the variables that influence burnout in order to increase awareness and to address the variables at an organization and personal level in order to identify therapists that may be at risk of burnout. In this I study examined the relationship of variables identified …
Optimization Models For Locating Cross-Docks Under Capacity Uncertainty, Anshul Soanpet
Optimization Models For Locating Cross-Docks Under Capacity Uncertainty, Anshul Soanpet
Graduate Theses, Dissertations, and Problem Reports
The objective of this thesis is to develop mathematical models for locating cross-docks in a supply chain. Cross-docking is a strategy which can help consolidate the goods in the supply chain and save costs by reducing the number of truck trips. In this thesis four optimization models were developed. First two optimization models termed Model A and Model B were deterministic models. The goal of model A was to choose exactly P locations to locate cross-docks so that the transportation and handling costs are minimized. The goal of model B is to locate as many cross-docks as needed so that …
Assessing The Surface Water Quality Impacts Of Marcellus Shale Development In Whiteday Creek Watershed, West Virginia, D. Aaron Streets
Assessing The Surface Water Quality Impacts Of Marcellus Shale Development In Whiteday Creek Watershed, West Virginia, D. Aaron Streets
Graduate Theses, Dissertations, and Problem Reports
Shale gas development in Central Appalachia will likely increase economic activity and help meet future energy needs; however, there are concerns over potential impacts to water resources. This research assessed impacts of drilling for gas in the Marcellus shale in the White Day Creek watershed in northern West Virginia. A total of eight stream sites, located both upstream and downstream of three permitted gas wells, were monitored. Two of the permitted wells were in the development phase while the third was actively being drilled. Water samples were collected during the bi-weekly sampling and analyzed at the National Research Center of …
Comparison Of Groundwater Seepage Modeling In Approximate Original Contour And Geomorphic Valley Fill Design, Nathan C. Depriest
Comparison Of Groundwater Seepage Modeling In Approximate Original Contour And Geomorphic Valley Fill Design, Nathan C. Depriest
Graduate Theses, Dissertations, and Problem Reports
Excess spoil generated during surface mining in southern West Virginia is generally placed in headwater valleys. Known as valley fills, these structures are designed to move water rapidly through constructed drains to maximize geotechnical stability using the conventional design method termed Approximate Original Contour (AOC). Seepage from valley fills tends to be elevated with respect to calcium, magnesium, alkalinity and sulfates and there is evidence that, in high concentrations, these ions can contribute to stream degradation. New fluvial geomorphic principals are being researched to aid in reclamation alternatives to AOC designs. Geomorphic designs have proven successful in semi-arid regions; however, …
The Effects Of The Environmental Design Instruction On The Students' Gymnastics Skill Refinement, Han Chen
The Effects Of The Environmental Design Instruction On The Students' Gymnastics Skill Refinement, Han Chen
Graduate Theses, Dissertations, and Problem Reports
The study compared the effects of Direct Instruction (DI) with DI+Environmental Design Instruction (EDI) on the refinement of both simple and difficult gymnastics skills refinement. Four boys aged six to eight with two years of gymnastics training experiences participated in the simple skill experiment (running tuck jump on the springboard). Four boys aged 11 to 13 with more than three years of gymnastics training experiences participated in the difficult skill experiment (mushroom circles). Three dependent variables were measured in the experiment of running tuck jump and they were: (1) the participant's hip angle while they jumped at the highest point, …
Examining The Forces Associated With Heading In Collegiate Soccer Athletes, Elizabeth A. Tenore
Examining The Forces Associated With Heading In Collegiate Soccer Athletes, Elizabeth A. Tenore
Graduate Theses, Dissertations, and Problem Reports
Context: Repetitive sub-concussive impacts have recently been recognized as a contributing factor of long-term cognitive deficits. The potential for this to affect soccer players participating at a high level is great due to the constant intentional use of the unprotected head when playing. Examining the force with which a soccer ball strikes an athlete's head during the act of heading is important to determine if there is a potential risk for long term consequences. Objective: The purpose of this study was to determine how much force is associated with heading in soccer. The variability between goal and corner kicks and …
Novel Engineered Nanostructured Complex Oxide For High Temperature Thermoelectric Power Generation, Diego F. Palacio
Novel Engineered Nanostructured Complex Oxide For High Temperature Thermoelectric Power Generation, Diego F. Palacio
Graduate Theses, Dissertations, and Problem Reports
Thermoelectric power generators are a promising technology that can produce electrical power directly from waste heat emitted in energy production and consumption systems. The essential component of thermoelectric generators is the thermoelectric material which performs the energy conversion process. In order to make thermoelectric devices to be considered a significant contributor to US energy infrastructure, it is essential first to foster improvements in high performance thermoelectric materials. They must possess not only a high conversion efficiency, but also need be composed of nontoxic and abundantly available elemental materials having high chemical stability in air up to 800-1000 K. In comparison …
The Application Of Single Porosity Model To Predict The Performance Of The Low Permeability Naturally Fractured Formations, Martial Hermann Tchuindjang Yatchou
The Application Of Single Porosity Model To Predict The Performance Of The Low Permeability Naturally Fractured Formations, Martial Hermann Tchuindjang Yatchou
Graduate Theses, Dissertations, and Problem Reports
Natural gas extraction from shale is currently an expensive endeavor due to the tight reservoir rock with nano-darcy permeability. New technology in the form of horizontal drilling and hydraulic fracturing (fracturing through the use of high pressure liquids) has overcome the flow capacity problem of shale to achieve economic production. The low permeability shale formations, such Marcellus Shale, contain a natural fracture system with extremely low permeability. The characteristics of the natural fracture system are non-existent; therefore the application of single porosity model to predict the production performance of the shale formations can reduce the need for detail fracture system …
Impact Of Stress-Field Changes Induced By Hydraulic Fracturing On Subsurface Fault Stability, Qian Gao
Impact Of Stress-Field Changes Induced By Hydraulic Fracturing On Subsurface Fault Stability, Qian Gao
Graduate Theses, Dissertations, and Problem Reports
Hydraulic fracturing is essential for economically producing hydrocarbons from shale reservoirs, and thus has been extensively used in completion of shale gas wells. However, fracturing formations can change in-situ stresses in the surrounding areas. There are concerns that hydraulic fracturing may potentially reactivate the subsurface faults nearby the treatment wells. The reactivated faults could cause many problems, such as early aborting/failure of fracturing treatment, fluid leakage along the fault and even seismicity events.;3D numerical models are developed based on finite element method. The comparison between analytical and numerical solutions indicates an excellent agreement has been achieved, which certificates the applicability …
Effects Of Video Feedback On Students' Performance Of A Back Handspring, Kristi A. Kiefer
Effects Of Video Feedback On Students' Performance Of A Back Handspring, Kristi A. Kiefer
Graduate Theses, Dissertations, and Problem Reports
Purpose: Video technology has become a viable resource for teachers and coaches as a method of providing feedback to students and athletes. Studies support the use of this strategy when applied to teaching adolescents and adults with a proficient skill base. To date little research has identified the use of video technology as a method of feedback in the skill acquisition of children at a novice level. The purpose of this study was to examine the effect of video feedback on the performance of a back handspring. Methods: A multiple-treatment reversal design within each participant with a counter balance was …
Evaluation Of Methods For Measuring Aggregate Specific Gravity, Rajasekhar Bikya
Evaluation Of Methods For Measuring Aggregate Specific Gravity, Rajasekhar Bikya
Graduate Theses, Dissertations, and Problem Reports
The current American Association of State Highway and Transportation Officials (AASHTO) procedures for determining the aggregate specific gravities and absorption values are time consuming and hence are not appropriate for quality control processes. These methods are not repeatable too which is another issue with the standard test methods. The standard AASHTO method for fine aggregates has problems with angular and absorptive materials. Due to this problem several agencies have developed alternative methods. Correct measurement of the specific gravity and absorption play a crucial role in the design of hot mix asphalt (HMA) mixtures. Improper measurements can lead to poor asphalt …
Comparing Student Stage Of Reflective Judgment Between Junior And Senior Academic Standing, Randall C. Miller
Comparing Student Stage Of Reflective Judgment Between Junior And Senior Academic Standing, Randall C. Miller
Graduate Theses, Dissertations, and Problem Reports
This study investigated reflective judgment scores of students enrolled in business-related programs of study with junior and senior academic standing from institutions of higher education accredited by the Council of Higher Education in the Mid-Atlantic region of the United States during Fall 2011, Spring 2012 and Summer 2012 semesters. Data were collected from students using a self-administered electronic questionnaire. Student reflective judgment scores were determined by employing the Reasoning about Critical Issues (RCI) questionnaire, a proprietary instrument. Eighty-seven students completed all components of the questionnaire to enable a reflective judgment score to be determined. On average, senior respondents in this …
Study Of Chemical States, Composition And Adsorption Behavior Of Iron Coated Granular Activated Carbon (Fe-Gac) For Selenate Removal And Feasible Adsorbent Modifications, Ning Zhang
Graduate Theses, Dissertations, and Problem Reports
This study examined the adsorptive removal of selenate using iron coated granular activated carbon (Fe-GAC) and further investigated its complexation mechanisms and coordination structures using spectroscopic techniques. Adsorption kinetics and equilibrium experiments with initial selenium concentration of 1 mg/L were conducted under three different ionic strengths to study selenate adsorption behavior. Selenate adsorption reached equilibrium within 48 hours with more than 85% of the equilibrium capacities being obtained within the first 6 hours. High removal efficiency (i.e., > 75%) was achieved for pH range 2 - 5. Pseudo-second-order kinetic model characterized selenate adsorption kinetics well (R2 = 0.999) and the rate …
Improvisation And Visual Thinking Strategies In Art Education, Jason Jaros
Improvisation And Visual Thinking Strategies In Art Education, Jason Jaros
Graduate Theses, Dissertations, and Problem Reports
This study examines the characteristic elements and possible educational benefits of spontaneity and improvisation in visual art education. The research draws from current practices and philosophies in music and drama education with the aim of developing collaboration, communication, problem solving, and creative and innovative thinking skills in students through the experience of making and appreciating art involving activities that encourage spontaneous decision making. Visual Thinking Strategies and the six continua for assessing thinking serve as the tools with which to investigate the effect of these activities on interpretive narratives of 40 fourth grade students in a public school setting.
An Evaluation Of The Occurrence Of Micronuclei And Other Nuclear Abnormalities In Fishes From The Great Lakes Basin, United States, Ryan Patrick Braham
An Evaluation Of The Occurrence Of Micronuclei And Other Nuclear Abnormalities In Fishes From The Great Lakes Basin, United States, Ryan Patrick Braham
Graduate Theses, Dissertations, and Problem Reports
Biological markers (biomarkers) sensitive to genotoxic and mutagenic contamination in fishes are widely used to identify contamination in the aquatic environment. The "fish tumors or other deformities" biological use impairment (BUI) occurs at 18 of the 30 areas of concern (AOC) located in the Great Lakes basin within the United States. As each AOC evaluates this specific BUI for possible delisting, biomarkers sensitive to both genotoxic and mutagenic chemicals can be integrated as a possible criterion for delisting. The micronucleus assay identifies genotoxic contamination by observing the presence of a micronucleus (MN), along with a primary nucleus within the cellular …
A Novel Approach To Residence Time Distribution, Jackson W. Wolfe
A Novel Approach To Residence Time Distribution, Jackson W. Wolfe
Graduate Theses, Dissertations, and Problem Reports
An increased knowledge in the solids flow in multiphase flow systems can be applied in the design of industrial systems used for power generation, gasification, pneumatic transport of material, drying, and various other tasks. An instrument was constructed for the activation, injection, and measurement of phosphorescent tracer particles in a fluidized bed riser to determine the Residence Time Distribution (RTD) of solids flow within a fluidized bed riser. The instrument was implemented in a dual-stage transparent scale model fluidized bed riser. Testing of the instrument system validated the functionality of the instrument. It was proven to be capable of determining …
Parents Living Within The Paradoxes Of Infant Death From Life-Limiting Anomaly: A Grounded Theory Study, Susan Bush Welch
Parents Living Within The Paradoxes Of Infant Death From Life-Limiting Anomaly: A Grounded Theory Study, Susan Bush Welch
Graduate Theses, Dissertations, and Problem Reports
BACKGROUND: Life-limiting congenital anomalies are the leading cause of death of infants in the United States. Most of these infants die in intensive care units with limited access to adequate palliative/end-of-life care. There is an extensive knowledge gap about the experience of the parent of infants who died from life-limiting anomaly. PURPOSE: The aims of the study was to explore the process a parent goes through as they experience the birth, life and ultimate death of an infant from a life-limiting explore the process a parent goes through as they experience the birth, life and ultimate death of an infant …
Onboard Parameter Identification For A Small Uav, Amanda K. Mcgrail
Onboard Parameter Identification For A Small Uav, Amanda K. Mcgrail
Graduate Theses, Dissertations, and Problem Reports
One of the main research focus areas of the WVU Flight Control Systems Laboratory (FCSL) is the increase of flight safety through the implementation of fault tolerant control laws. For some fault tolerant flight control approaches with adaptive control laws, the availability of accurate post failure aircraft models improves performance. While look-up tables of aircraft models can be created for failure conditions, they may fail to account for all possible failure scenarios. Thus, a real-time parameter identification program eliminates the need to have predefined models for all potential failure scenarios. The goal of this research was to identify the dimensional …
The Effectiveness Of A Multifocal Training To Improve The Treatment Of Community-Acquired Mrsa Skin And Soft Tissue Infections, Aaron Santmyire
The Effectiveness Of A Multifocal Training To Improve The Treatment Of Community-Acquired Mrsa Skin And Soft Tissue Infections, Aaron Santmyire
Graduate Theses, Dissertations, and Problem Reports
Practitioners and researchers have documented an increase in community-acquired methicillin resistant staphylococcus aureus (CA-MRSA) skin and soft tissue infections (SSTIs). This increase is causing stress and concern for the individuals infected and the families of those infected. The impact of a practitioner based multifocal training has not been clearly established. The purpose of this capstone project was to determine the effect of a multifocal training on CA-MRSA SSTIs that educated primary care practitioners about treatment guidelines, Marion County, WV susceptibility data, I&D technique, and a patient education tool versus common treatment practices to increase practitioner's knowledge and utilization of evidence …
Development Of A Low-Cost Robotics Platform That Facilitates The Enhancement Of Microcomputer Structures And Interfacing Learning Objectives, Justin Ryan Morris
Development Of A Low-Cost Robotics Platform That Facilitates The Enhancement Of Microcomputer Structures And Interfacing Learning Objectives, Justin Ryan Morris
Graduate Theses, Dissertations, and Problem Reports
Robotics has become a common educational tool to teach basic concepts in mathematics, science, engineering, technology, world affairs, and much more. Programs such as For Inspiration and Recognition of Science and Technology (FIRST) robotics are demonstrating that the recipe for student inspiration and learning involves robotics, problem solving, teamwork, and friendly competition. The successes of FIRST robotics programs and results from universities that have integrated robotics platforms into their curriculum provide evidence that infusing robotics platforms and curriculum into engineering departments better their capabilities and increase attractiveness to current and future students. This effort details the design and development of …
Effects Of Social And Non-Social Interpretations Of Complex Images On Human Eye Movement And Brain Activation, Amy L. Prostko
Effects Of Social And Non-Social Interpretations Of Complex Images On Human Eye Movement And Brain Activation, Amy L. Prostko
Graduate Theses, Dissertations, and Problem Reports
Communicating and interacting with others is an essential part of our daily routines as humans. Performing these actions appropriately requires the ability to identify, extract, and process salient social cues from the environment. The subsequent application of such knowledge is important for inferring and predicting the behavior of other people. The eyes and brain must work together to fixate and process only the most critical social signals within a scene while passing over and / or completely ignoring other aspects of the scene. While brain activation to isolated presentations of objects and people presentations have been characterized, information about the …
The Effects Of Index Storage On Ranked Information Retrieval, James E. Mantheiy Jr.
The Effects Of Index Storage On Ranked Information Retrieval, James E. Mantheiy Jr.
Graduate Theses, Dissertations, and Problem Reports
Information retrieval is the process of recalling and ordering all relevant documents based on a user's search query. Examples of information retrieval systems are Google, Bing, and Yahoo search. In order to perform an effective search, these systems utilize an inverted index for mapping content, such as words, to the original document. It is widely believed there are two options for implementing an inverted index and these options are in memory or as a file. This investigation looks at implementing an inverted index as a table in a database as compared to the other two options. In addition, this investigation …
Role Of Chaperonin Cct In G-Protein Biosynthesis, Catherine Woodard
Role Of Chaperonin Cct In G-Protein Biosynthesis, Catherine Woodard
Graduate Theses, Dissertations, and Problem Reports
Chaperonins are ubiquitous molecular chaperones that are found in all animal kingdoms. They all share a common structure and function to assist the folding of other proteins. All chaperonins consist of two stacked rings, which come together to form a central cavity where folding can take place. The eukaryotic cytosolic chaperonin containing TCP1 (CCT) is a member of the group II chaperonins, which are defined as having octameric or nonameric rings composed of more than one type of subunit.;CCT is an essential part of eukaryotic cell function, and it has been estimated that it folds up to 10% of newly …
Design And Evaluation Of A Marine Scrubber System, Louise S. Ayre
Design And Evaluation Of A Marine Scrubber System, Louise S. Ayre
Graduate Theses, Dissertations, and Problem Reports
Increasingly stringent oxides of nitrogen (NOX) emissions regulations for diesel marine engines are resulting in the development of newer engines with inherent NOX emissions reduction technologies. With typical useful service lives over 20 years, older diesel marine engines are producing disproportionate amounts of NOX emissions when compared with their newer counterparts. The development of retrofit exhaust aftertreatment technologies would therefore aid in reducing the total NOX emissions from these engines.;A marine scrubber system for the reduction of NOX emissions from diesel marine engines was designed, constructed, and evaluated. This work focused on gathering data for the design of a marine …
Flexibility And Transient Dynamic Analysis Of A Slider-Crank Deployment Mechanism, Andres Cavezza
Flexibility And Transient Dynamic Analysis Of A Slider-Crank Deployment Mechanism, Andres Cavezza
Graduate Theses, Dissertations, and Problem Reports
High Speed Deployment Mechanisms (HSDM) have become essential and indispensable for specific applications in industrial and aerospace sectors. However, the field of High Speed Deployment Mechanisms is still not completely explored in many areas; the holistic analysis of HSDM reveals a lack of information about its, classification, analysis and design considerations. A research was conducted to generate a systematic approach addressing the issues mentioned above. In the beginning of this research, a methodology is presented to perform the kinematic and dynamic analyses of a Slider-Crank Deployment Mechanism; this method is based on the Lagrange Multipliers approach. The analyses of position, …
Switchgrass Potential On Reclaimed Surface Mines For Biofuel Production In West Virginia, Michael A. Marra
Switchgrass Potential On Reclaimed Surface Mines For Biofuel Production In West Virginia, Michael A. Marra
Graduate Theses, Dissertations, and Problem Reports
The high cost and environmental risks associated with non-renewable energy sources has caused an increased interest in, and development of renewable biofuels. Switchgrass (Panicum virgatum L.), a warm season perennial grass, has been investigated as a source of biofuel feedstock due to its high biomass production on marginal soils, its tolerance of harsh growing conditions, and its ability to provide habitat for wildlife and soil conservation cover. West Virginia contains vast expanses of reclaimed surface mine lands and could potentially benefit from the production of switchgrass as a biofuel feedstock. Furthermore, switchgrass production could satisfy Surface Mining Reclamation and Control …
Selection Of Benthic Habitat By Yellow-Phase American Eels (Anguilla Rostrata), Melissa A. Braham
Selection Of Benthic Habitat By Yellow-Phase American Eels (Anguilla Rostrata), Melissa A. Braham
Graduate Theses, Dissertations, and Problem Reports
This thesis examines habitat preference of yellow-phase American eels (Anguilla rostrata) and relationships between age and length with that preference. The thesis is comprised of two chapters: (1) an introduction and literature review on American eel life history, their habitat selection, and the study of resource selection, and (2) an experimental study of yellow-phase American eel habitat preference and relationships between preference and age and length. Given widespread habitat alteration of North American rivers, an understanding of the use and selection of habitat is important to conservation and management of the American eel. Yellow-phase American eels are often considered as …
Development Of A Software Tool To Estimate Airfoil Feature Variations, Prasheel Chaganti
Development Of A Software Tool To Estimate Airfoil Feature Variations, Prasheel Chaganti
Graduate Theses, Dissertations, and Problem Reports
The objective of this thesis is to design and develop a software tool that analyzes the incoming raw material inspection data obtained from a Coordinate Measuring Machine (CMM) and estimates feature variation created within the manufacturing process i.e. from the raw material stage to finished stage. This tool is used not only to disposition whether a lot is conforming or non-conforming, but also to provide the root installation operators an ideal N-angle, Leading Edge Angle (LEA) and Trailing Edge Angle (TEA) target that maximize the yield of the lot after further processing. The tool also helps reduce the number of …
Eurasianist Trends In Russian Foreign Policy: A Critical Analysis, Steven K. Voytek
Eurasianist Trends In Russian Foreign Policy: A Critical Analysis, Steven K. Voytek
Graduate Theses, Dissertations, and Problem Reports
This paper examines and illustrates the presence of a powerful Eurasianist doctrine currently informing Russian foreign policy. It first presents the historical evolution of Eurasianism, its most recent incarnation present in contemporary Russia, and later seeks to explicate its development. The emergence of this particular doctrine was the result of a gradual process that began in 2000 when Vladimir Putin first became President of the Russian Federation although its historical roots are traced back to the 19th century. Over the course of the past decade a new brand of Eurasianism has emerged which this study identifies as 'Geopolitical Eurasianism'. Various …
Russian-Moldovan Relations After The Collapse Of The Soviet Union, Anna Napieralska
Russian-Moldovan Relations After The Collapse Of The Soviet Union, Anna Napieralska
Graduate Theses, Dissertations, and Problem Reports
After the break-up of the Soviet Empire a newborn Republic of Moldova faced a series of challenges, one of which was creating the political and economic foundations that would allow it to become the sustainable European country. It proved to be an extremely difficult task. Indeed, at the beginning of the 1990's Moldova was widely known as the poorest and the least economically stable country on the old continent. During the first years of independence the Moldovan leaders realized that the greatest challenge would be to limit Russian influences on the domestic and foreign policy of the country. Since the …