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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 …
Near Boundary Turbulence Characteristics Among Stream Restorations Of Varying Intensity, Sean M. Abel
Near Boundary Turbulence Characteristics Among Stream Restorations Of Varying Intensity, Sean M. Abel
Graduate Theses, Dissertations, and Problem Reports
Stream restoration is estimated to be a multi-billion dollar industry and includes techniques such as planting vegetation, modifying channel form, and installing in-stream structures. These techniques potentially alter the velocity field and flow complexity. The specific objective of this research was to characterize near-boundary flow within the three restored reaches of varying intensities located in the Stream Research, Education, and Management (StREAM) Laboratory at Virginia Tech. Three restoration techniques were applied in 2009-10 to consecutive reaches of Stroubles Creek: 1) cattle restriction only (0.5 km); 2) cattle restriction, banks reshaped to 3:1 slope and re-vegetated (0.6 km); and, 3) designed …
Quantification Of Mixing In Microchannels, Vijaymaran Manickam
Quantification Of Mixing In Microchannels, Vijaymaran Manickam
Graduate Theses, Dissertations, and Problem Reports
Microchannels are used for delivery of two-or more fluids for multiple purposes, such as drug delivery, where good mixing is desired in a very short time (or distance). For this purpose, many design options are being proposed in the literature. For example herringbone baffles at the bottom of a rectangular channel are commonly proposed to enhance mixing in a drug delivery device. To assess the effectiveness of such devices many experiments need to be performed thus increasing the design cycle time and the cost involved. Computational fluid dynamics (CFD) can and is being used to shorten this design cycle by …
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 …
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 …
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 …
Manufacture And Properties Of Thermoplastic Starch Biocomposites, Charlie A. Collins Ii
Manufacture And Properties Of Thermoplastic Starch Biocomposites, Charlie A. Collins Ii
Graduate Theses, Dissertations, and Problem Reports
Bio-composites have attracted considerable attention from the industry as potential substitutes for petroleum-derived composites. Starch is a potential candidate because it is biodegradable and is readily available sustainable polymer from agriculture resources. However, it is not easy to process like petroleum-derived polymers because of the lack of defined melting point and is sensitive to high humidity with poor mechanical properties. This study evaluated the processability of starch, lignin and pulp fibers using a BrabenderRTM Torque Rheometer. Type of starch exerted great influence on processability. Gelation characteristics of the four composite mixtures correlated with starch type. Amylose containing composite mixtures (#1 …
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 …
Impulsivity And Suicidal Ideation Or Attempt In Younger And Older Adults, Elizabeth C. Price
Impulsivity And Suicidal Ideation Or Attempt In Younger And Older Adults, Elizabeth C. Price
Graduate Theses, Dissertations, and Problem Reports
Rates of suicidal behaviors vary over the lifespan, but little research has focused on developmental aspects of suicidal behaviors and associated risk factors. Previous studies suggest that young people who attempt or die by suicide are likely to be generally impulsive. 108 community-dwelling older adults age 60 and older and 498 undergraduate students ages 18-30 completed the Center for Epidemiological Studies -- Depression Scale, the Barratt Impulsivity Scale, and the Suicidal Behaviors Scale -- Revised. The hypothesis was that the relation between impulsivity and suicidal ideation or attempt, in the context of depressive symptoms, would be stronger in younger adults …
Development Of A Powertrain Control Algorithm For A Compound-Split Diesel Hybrid-Electric Vehicle, Douglas Alan Ward
Development Of A Powertrain Control Algorithm For A Compound-Split Diesel Hybrid-Electric Vehicle, Douglas Alan Ward
Graduate Theses, Dissertations, and Problem Reports
The goal of this research was to develop a unique powertrain control algorithm for a diesel-powered compound-split hybrid crossover utility vehicle (CUV) and evaluate the fuel consumption and greenhouse gas emissions benefits that can be realized compared to existing non-hybrid, gasoline-powered CUVs. This was achieved through the implementation of engine on/off functionality, regenerative braking, and electric-only drive. The research was conducted in conjunction with the university's participation in EcoCAR: The NeXt Challenge, an inter-collegiate advanced vehicle engineering competition focused on developing alternatively powered vehicles in the interest of providing improved fuel efficiency and reduced tailpipe emissions while maintaining useful vehicle …
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 …
Epipathogenesis Of Caries: Analyses Of Family Structure, Fear, And Fatalism Upon World Health Organization Decayed, Missing, And Filled Teeth Severity In Appalachia West Virginia And Pennsylvania, R. Constance Wiener
Graduate Theses, Dissertations, and Problem Reports
Appalachian has many social, economic, and biologic factors impacting dental health over the life-course.;Purpose: This study examined dental caries experience and family structure, dental fear, and fatalism in West Virginia and Pennsylvania.;Method: Using a cross-sectional study design, 2002-2009 Center for Oral Health Research in Appalachia data were analyzed utilizing the World Health Organization definitions for caries experience, dichotomized into low and high. Three groups were studied: 1) children, 11-13 years (N=237); 2) adolescents, 14-17 years (N=191); and 3) adults, 18 years and above (N=1125). For multivariable model development, generalized estimating equations with exchangeable working structures accounted for family clusters.;Results. For …
Stream Restoration: Project Evaluation And Site Selection In The Cacapon River Watershed, West Virginia, Jonathan L. Pitchford
Stream Restoration: Project Evaluation And Site Selection In The Cacapon River Watershed, West Virginia, Jonathan L. Pitchford
Graduate Theses, Dissertations, and Problem Reports
Stream restoration is being conducted throughout the world at unprecedented rates to address stream channel degradation and water quality concerns. Natural Channel Design (NCD) is a common method used for restoration and has received governmental endorsement; however, the effects of NCD on channel stability and ecosystem functioning are poorly studied. We examined the effects of a reach-scale NCD project on channel stability, riparian vegetation, and water quality along the Cacapon River, West Virginia using a before-after-control-impact design and determined that restoration increased the abundance and diversity of woody vegetation, but had minimal effects on streambank stability and water quality. Increased …
Effectiveness Of Biofeedback In Improving Heart Rate Variability Recovery Following Stress, Amanda L. Wheat
Effectiveness Of Biofeedback In Improving Heart Rate Variability Recovery Following Stress, Amanda L. Wheat
Graduate Theses, Dissertations, and Problem Reports
The current study was designed to examine the efficacy of heart rate variability (HRV) biofeedback using emWave, a specific biofeedback device available to the public, and to determine whether such treatment affects phasic physiological responses to stress. Twenty-seven individuals (4 males, 23 females), aged 18-30 years (M = 22.54 years, SD = 3.82) participated in the current study. Thirteen individuals were randomly assigned to a control group and received no intervention, whereas the remaining 14 participants underwent 4-8 sessions of emWave intervention. All participants attended pre-treatment and post-treatment assessment sessions during which a stressor protocol was administered; physiological data were …
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 …
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 …
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, …
Impact Of Diabetes On Colorectal Cancer Outcomes, Neel A. Shah
Impact Of Diabetes On Colorectal Cancer Outcomes, Neel A. Shah
Graduate Theses, Dissertations, and Problem Reports
Diabetes is one of the most common chronic comorbid condition seen in elderly CRC patients. Outcomes of CRC patients with diabetes specifically stage at diagnosis, emergency condition for CRC surgery, survival, and mortality have been insufficiently explored. The aims of the study were to investigate the association between diabetes and stage at diagnosis of CRC in elderly Medicare beneficiaries; to check the association of diabetes with presenting as an emergency condition for CRC surgery in the elderly and; to explore the effect of diabetes on survival of elderly Medicare beneficiaries with CRC. Using the SEER-Medicare data from 2003-2005, patients newly …