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Graduate Theses, Dissertations, and Problem Reports (ETD)

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Effects Of Concept Mapping On Learning Anatomy And Transfer Of Anatomy Knowledge To Kinesiology In Health Sciences Students, Frances E. Huber Dec 2001

Effects Of Concept Mapping On Learning Anatomy And Transfer Of Anatomy Knowledge To Kinesiology In Health Sciences Students, Frances E. Huber

Graduate Theses, Dissertations, and Problem Reports (ETD)

Purpose. The purpose of this study was to determine the effects of concept mapping on academic achievement in anatomy and transfer of anatomy knowledge to kinesiology and to describe the participants' experience with this new study strategy. Methods. Thirty-eight junior physical therapy and occupational therapy students volunteered to participate in this study in the fall of 2000. Thirty students matriculated into the spring semester and completed the study. All participants signed informed consents. Participants were randomly assigned to a control group or concept mapping group. The concept mappers were instructed with concept mapping. Members of the concept mapping group were …

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Parent Distress, Parent Behavior, And Infant Distress During Pediatric Immunizations, Rebecca Suzanne Bernard Dec 2001

Parent Distress, Parent Behavior, And Infant Distress During Pediatric Immunizations, Rebecca Suzanne Bernard

Graduate Theses, Dissertations, and Problem Reports (ETD)

Infant procedural distress historically has been ignored, and the importance of reducing infant distress only recently has been addressed. To understand and manage infant procedural distress, it is essential to examine the correlates and potential predictors of this distress. The purpose of this study was to examine the effects of parent distress on infant procedural distress, the effects of parent behavior on infant distress, and the combined impact of parent distress and behavior on infant distress for 37 parent-infant dyads. Results demonstrated that infant measures were not intercorrelated, only parent self-report measures were intercorrelated, and several measures of parent distress …

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Rates Of Adoption In A University Course Management System, David Russell Feeney Dec 2001

Rates Of Adoption In A University Course Management System, David Russell Feeney

Graduate Theses, Dissertations, and Problem Reports (ETD)

This research focuses on diffusion of an education innovation in a large, traditional University. In March 1999, the Blackboard digital course management system was installed for enterprise-wide availability at Temple University, the 39th largest university in the United States. The web-enabled database of Temple Blackboard logs the adoption date, course ID, and course title for every Blackboard course, unobtrusively, twenty-four hours a day. Temple Blackboard serves as 4 digital approximation of the cumulative recorder pioneered by B. F. Skinner, recording more than 2800 course adoptions across 30 months, in real time. Temple Blackboard course records provide unprecedented quantity and quality …

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Large -Eddy Simulation Of Ship Wakes, Shaoping Shi Dec 2001

Large -Eddy Simulation Of Ship Wakes, Shaoping Shi

Graduate Theses, Dissertations, and Problem Reports (ETD)

The objective of the present study is to improve our understanding of turbulent wake flows. Large-Eddy Simulation (LES) technique is applied for this purpose. A readily available code was used with necessary modifications. Three dimensional incompressible Navier-Stokes equations are solved in non-orthogonal curvilinear coordinates. Finite-volume approach is implemented on a non-staggered grid. The core of the numerical scheme is a fractional step method. The overall accuracy of the method is second order in both space and time.;The LES approach has been validated for four cases: channel flow, flow past a square body, a shear layer flow, and open channel flow. …

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Friendship Characteristics Associated With Adolescent Friendship Maintenance And Dissolution, Rebecca A. Owens Dec 2001

Friendship Characteristics Associated With Adolescent Friendship Maintenance And Dissolution, Rebecca A. Owens

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examined the association between early adolescents' friendship features and friendship outcomes (maintenance vs. dissolution and overall quality) following friendship problems. Also of interest was whether the reported causes of friendship problems and friendship dissolution differed. Early adolescents' (mean age = 12.45 years; 118 girls, 82 boys) experiences with their friends were assessed through several written questionnaires. Six friendship features were used to predict friendship outcomes following problems: length of friendship, closeness, common experiences, balance of costs and rewards, personal characteristics, and expected ease of finding a new friend. Length of friendship and approval of a friend's personal characteristics …

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Parent-Infant Interactions During Acute Painful Procedures, Catherine Bradford Mcclellan Dec 2001

Parent-Infant Interactions During Acute Painful Procedures, Catherine Bradford Mcclellan

Graduate Theses, Dissertations, and Problem Reports (ETD)

Despite the current recognition of infant procedural pain and distress, there is a dearth of research, both in the assessment and treatment literature, of infant procedural distress. This study examined how specific parent behaviors relate to infant procedural distress and whether this relation is mediated by birth order. Results indicated that females were rated as more distressed than were males, and that birth order did not prove to be a distinguishing factor in infant distress. Finally, while some behaviors appear to have a similar influence on both preschoolers' and infants' behaviors, parents' behavior during infants' distressing procedures were found to …

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Manager Characteristics And Support For Worksite Health Promotion Programs That Target Women In Small, Blue-Collar Worksites, Leigh Wiley Belton Dec 2001

Manager Characteristics And Support For Worksite Health Promotion Programs That Target Women In Small, Blue-Collar Worksites, Leigh Wiley Belton

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examined the relationship between manager support for health promotion programs and perceived benefits of health promotion activities, organizational health climate, and personal health behaviors among managers in small, blue-collar textile and light manufacturing worksites in eastern North Carolina. Ninety-eight managers completed a self-administered questionnaire that assessed levels of support for, and interest in, employee health promotion programs, perception of organization climate, and perceived benefits of health promotion activities. Demographic data was also collected. Chi-square and correlation analyses were used to assess statistical significance. No significant associations were found between level of manager support and demographic characteristics, perceived benefits …

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Investigation Of Diesel Soot-Mediated Oils And Additive Package On Wear, Santhosh Kumar Balla Dec 2001

Investigation Of Diesel Soot-Mediated Oils And Additive Package On Wear, Santhosh Kumar Balla

Graduate Theses, Dissertations, and Problem Reports (ETD)

In the current study, a statistically designed experiment was developed to study the effects of soot contaminated engine oil on wear. The variables that were considered were the Base stock (Group1, Group2), Dispersant level and ZDP level. The above three variables were formulated at two levels: Low (-1), and High (1), which resulted in 23 matrix (8 oil blends). Soot was also one of the variables and was tested at three levels: Low (-1), Medium (0) and High (1).;A three-body-wear machine was employed to simulate and estimate the extent of wear, as it is very difficult to test each oil …

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Fuzzy Logic Cost Estimation Method For High Production Volume Components, Shirley Jean Copen Dec 2001

Fuzzy Logic Cost Estimation Method For High Production Volume Components, Shirley Jean Copen

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this research is to develop fuzzy logic cost models that estimate the cost of a component based on the component's geometric shape, size, material and manufacturing process. The research is focused on components made from high production quantity processes i.e. stamping, injection molding, rolling and extrusion. However, the method may also be used for other types of manufacturing processes. The method is useful to both engineers and cost estimators whenever an estimated cost is desired. Engineers and cost estimators may use the method to obtain the cost of components or products of similar design without a detailed …

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Lda And Cta In-Cylinder Measurements Of Intake-Generated Turbulence For Steady Flow Around A Centrally Located Valve, Gearle Ray Bailey Jr. Dec 2001

Lda And Cta In-Cylinder Measurements Of Intake-Generated Turbulence For Steady Flow Around A Centrally Located Valve, Gearle Ray Bailey Jr.

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this study was to measure the axial and swirl velocities for steady flow in a cylinder past an intake valve, in order to study the effects of swirl and valve lift on turbulence generation. A simple geometry was used for an initial look at the flow past a valve.;A cylinder with a centrally located valve was used as the test bed. The valve was tested at lifts of 4 and 9 mm Two intake geometries were tested: a straight intake port and a swirl intake port. A single sensor Constant Temperature Anemometry (CTA) and a one-component Laser …

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Multifractal Analysis Of Memory Usage Patterns, Jonathan Browning Crowell Dec 2001

Multifractal Analysis Of Memory Usage Patterns, Jonathan Browning Crowell

Graduate Theses, Dissertations, and Problem Reports (ETD)

The discovery of fractal phenomenon in computer-related areas such as network traffic flow leads to the hypothesis that many computer resources display fractal characteristics. The goal of this study is to apply fractal analysis to computer memory usage patterns. We devise methods for calculating the Holder exponent of a time series and calculating the fractal dimension of a plot of a time series. These methods are then applied to memory-related data collected from a Unix server. We find that our methods for calculating the Holder exponent of a time series yield results that are independently confirmed through calculation of the …

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Study Of The Rheological Properties Of Nomex Fibrids, Long Han Dec 2001

Study Of The Rheological Properties Of Nomex Fibrids, Long Han

Graduate Theses, Dissertations, and Problem Reports (ETD)

Paints and caulks typically contain (spherical) fumed silica particulates as viscosity enhancers. A similar viscosity enhancement can be achieved by using aramid fibrids. Aramid fibrids are believed to form microstructures in suspensions because of the "space-filling" nature of their shapes and thus provide a convenient means of introducing desired rheological behavior for various commercial applications.;The flow responses of aramid fibrids dispersed in mixtures of corn syrup and water were determined in dynamic shear, steady shear, low shear capillary, and extensional stretching flows. Yield stress, strong shear thinning, thixotropy, and strong dispersion effects were observed, and these are consistent with observed …

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Kinematic Synthesis Of A Well Service Machine, Prashanth Kaparthi Dec 2001

Kinematic Synthesis Of A Well Service Machine, Prashanth Kaparthi

Graduate Theses, Dissertations, and Problem Reports (ETD)

Blowout preventers are used in the oil well industry to prevent accidental oil fires, and guide valves are assembled atop the preventers. The current solution is to use cranes, as this is time-consuming and expensive, a solution using an appropriate four-bar mechanism for this purpose was contemplated, using Burmester theory and the four-position synthesis method.;The angles and distance of the four positions were calculated and the data obtained was specified as input for the synthesis of the four-bar mechanism using four-position synthesis programmed in MATLAB(TM). The moving pivots (k) and the ground pivots (m) were obtained from the program and …

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Simulated Annealing Heuristics For The Dynamic Facility Layout Problem, Saravanan Kuppusamy Dec 2001

Simulated Annealing Heuristics For The Dynamic Facility Layout Problem, Saravanan Kuppusamy

Graduate Theses, Dissertations, and Problem Reports (ETD)

Today's consumer market demands that manufacturers must be competitive. This requires the efficient operation of manufacturing plants and their ability to quickly respond to changes in product mix and demand. Studies show that material handling cost makes up between 20 and 50 percent of the total operating cost. Therefore, this thesis considers the problem of arranging and rearranging (when there are changes in product mix and demand) manufacturing facilities such that material handling and rearrangement costs are minimized. This problem is called the dynamic facility layout problem. In this thesis, three simulated annealing heuristics are presented for the dynamic facility …

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Toward High-Definition Reservoir Characterization, Gheorghe Luca Dec 2001

Toward High-Definition Reservoir Characterization, Gheorghe Luca

Graduate Theses, Dissertations, and Problem Reports (ETD)

A new methodology for high resolution reservoir characterization is proposed. It combined the advantages of the surface seismic (low resolution, large coverage) and crosswell seismic (improved resolution, small coverage).;The process involves deconvolution of a low resolution signal (surface seismic traces) into a high resolution crosswell seismic trace. The problem has multiple solutions and an analytical solution is hard or difficult to be developed.;This project proved that it is possible to predict high-resolution crosswell seismic traces using low-definition surface seismic traces. The statistical comparison between the real and the synthetic crosswell seismic traces gives confidence that future work in this area …

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Development Of Environmental Health And Safety Database For Small Communities, Ragava S. Nadig Dec 2001

Development Of Environmental Health And Safety Database For Small Communities, Ragava S. Nadig

Graduate Theses, Dissertations, and Problem Reports (ETD)

The National Environmental Services Center (NESC) is a group of programs, national in scope, that provide a variety of environmental services directly to small community officials, engineers, technicians, regulatory officials, and private citizens.;The primary mission of each of the NESC programs is to protect public health and the environment of America's small and rural communities-those communities of less than 10,000 people. The NESC programs provide information, technical assistance, and training to help small communities deal with their wastewater, drinking water, and solid waste treatment issues.;Thousands of informational materials pass through the organization each year. This material ranges from manufacturing product …

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Simulation Of Heavy-Duty Hybrid Electric Vehicles, Anjali Devi Nennelli Dec 2001

Simulation Of Heavy-Duty Hybrid Electric Vehicles, Anjali Devi Nennelli

Graduate Theses, Dissertations, and Problem Reports (ETD)

Microsoft Excel and ADvanced VehIcle SimulatOR (ADVISOR) were used to simulate the driving conditions of heavy-duty hybrid electric vehicles over various driving cycles in an attempt to optimize their design and control. The fuel economy data thus obtained were compared with those of the in-use heavy-duty hybrid electric vehicles. For this the drive cycles are modified to represent realistic expectations of the dynamic performance of vehicles. The cycles used are "Central Business District" cycle (CBD), "Urban Dynamometer Driving Schedule" cycle (UDDS), "Manhattan" cycle and "City Suburban Heavy Vehicle Cycle" (CSHVC). The vehicle considered for simulations was a transit bus, which …

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Improved Velocity Data In Circular Jets Using An Avalanche Photodiode-Based 2-Component Point Doppler Velocimeter, Thomas Trent Scarberry Dec 2001

Improved Velocity Data In Circular Jets Using An Avalanche Photodiode-Based 2-Component Point Doppler Velocimeter, Thomas Trent Scarberry

Graduate Theses, Dissertations, and Problem Reports (ETD)

An existing Point Doppler Velocimeter (pDv) has been modified in an effort to improve the RMS velocity results. Improvements have been made by reducing the probe volume size by focusing the incident laser beam, thereby reducing the effects of spatial averaging on the mean and RMS velocity measurements.;In particular, the PIN photodetectors used previously, were tested using the reduced probe volume, and were then replaced by high-gain, high signal-to-noise ratio large area avalanche photodetectors (APD's).;Comparisons have been made between the data acquired and hot wire data obtained on the same jet flow, as well as data obtained in previous pDv …

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Moisture Diffusion Through Vinyl Ester/Clay Nanocomposites, Apoorva Paresh Shah Dec 2001

Moisture Diffusion Through Vinyl Ester/Clay Nanocomposites, Apoorva Paresh Shah

Graduate Theses, Dissertations, and Problem Reports (ETD)

Moisture diffusion was studied through vinyl ester samples containing up to 5 wt% montmorillonite clay; two different kinds of clay surface treatments were employed to make the clay compatible with the vinyl ester resin. These nanocomposites were characterized using differential scanning calorimetry (DSC), mechanical property measurements, x-ray diffraction (XRD) and transmission electron microscopy (TEM). TEM pictures showed that the clay platelets were either exfoliated or intercalated, and the two different surface treatments resulted in different dispersion characteristics. All the samples were post cured, and the diffusivity of moisture was measured by soaking the samples in water at 25°C and noting …

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Fabrication Of Thin Film Nanoscale Alumina Templates, Paul B. Sines Dec 2001

Fabrication Of Thin Film Nanoscale Alumina Templates, Paul B. Sines

Graduate Theses, Dissertations, and Problem Reports (ETD)

Semiconductor nanostructures have superior electronic and optical properties that are expected to play an important role in 21st century electronic and photonic devices. Recognizing this potential, semiconductor nanostructures have been the focus of research over the past 25 years, and many ultra-high performance devices have been demonstrated. While the potential of this class of devices is clear, their commercial applications have been limited by the lack of a fabrication process suited to economical volume production. The initial method of nanostructure fabrication using electron beam lithography and reactive ion etching is not considered practical due to its high cost and low …

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Characterization Of Stresses Induced In Doweled Joints Due To Thermal And Impact Loads, Shiva Srinivasan Dec 2001

Characterization Of Stresses Induced In Doweled Joints Due To Thermal And Impact Loads, Shiva Srinivasan

Graduate Theses, Dissertations, and Problem Reports (ETD)

A review of literature on dowel jointed concrete pavement response reveals that the effect of uniform temperature changes was neglected based on the assumption that concrete slabs can contract freely. The triaxial state of stresses that develop at the dowel concrete interfaces due to the application of mechanical and thermal loads has not been previously characterized. In this study a detailed Three-Dimensional Finite Element (3D FE) model was used to investigate the state of contact stresses, mid slab stresses, and load transfer efficiency that develop in dowel jointed concrete pavements under the influence of combined impact and thermal loads. The …

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Detection Of Subsurface Anomalies In Fiber-Reinforced Polymer (Frp) Wrapped Timber Bridge Components Using Infrared Thermography, William Edward Steele Iii Dec 2001

Detection Of Subsurface Anomalies In Fiber-Reinforced Polymer (Frp) Wrapped Timber Bridge Components Using Infrared Thermography, William Edward Steele Iii

Graduate Theses, Dissertations, and Problem Reports (ETD)

This thesis presents the results of an experimental study on the use of Infrared Thermography technique for detection of subsurface anomalies in fiber reinforced polymer (FRP) wrapped timber bridge components. An extensive literature review on the application of various nondestructive evaluation techniques to composite structures has also been presented.;Simulated subsurface delaminations were constructed in the laboratory in timber piles wrapped with FRP composite fabric. The delaminations varied in size, thickness, and severity. These delaminations were placed between the 1/8&inches; thick FRP wrap and timber surface. The thermal images from the delaminated specimens were compared with thermal images from undamaged specimens …

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Effects Of Baffles On Damping Lateral Fluid Sloshing Oscillations In Tanker Trucks, Rohit Kumar Tanugula Dec 2001

Effects Of Baffles On Damping Lateral Fluid Sloshing Oscillations In Tanker Trucks, Rohit Kumar Tanugula

Graduate Theses, Dissertations, and Problem Reports (ETD)

Partially filled heavy-duty tanker trucks maneuvering constant radius turns or lane change maneuvers have lower rollover threshold than other vehicles because of the high center of gravity and dynamic sloshing of the liquid payload. Payloads are often toxic and hence, rollover accidents can be catastrophic. Therefore, attempts to increase the threshold velocity and predicting its value under various on-road maneuvers are of paramount importance.;This research was aimed at studying the effects of baffles on reducing the lateral sloshing and thereby, improving the stability of heavy-duty trucks. Various configurations (horizontal, vertical, horizontal and vertical, and diagonal) of baffles were considered for …

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Study Of West Virginia Wood Industry Roundwood Consumption In 1999, O'Dell Emanuel Tucker Dec 2001

Study Of West Virginia Wood Industry Roundwood Consumption In 1999, O'Dell Emanuel Tucker

Graduate Theses, Dissertations, and Problem Reports (ETD)

Use of wood composite products has increased over the last decade in the market for construction material. Softwood species and soft hardwood species are the preferred forest resources for manufacturing these products. Reduction in available softwood forest resources from the Western states has forced a shift to use of more soft hardwood species in the Northeast. What impact this shift may have on the forest resources in the Northeast is not known.;The objective of this study was to canvass primary wood manufacturers in and around the forest of West Virginia and determine how roundwood consumption has changed since the shift …

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Habitat Utilization And Movement Patterns Of Subadult Largemouth Bass (Micropterus Salmoides) In The Ohio River, Elizabeth Marie Hoffman Dec 2001

Habitat Utilization And Movement Patterns Of Subadult Largemouth Bass (Micropterus Salmoides) In The Ohio River, Elizabeth Marie Hoffman

Graduate Theses, Dissertations, and Problem Reports (ETD)

Ohio River electrofishing surveys identified embayments as preferred macrohabitat of subadult largemouth bass. Catch rates within macrohabitats were low ranging from 0.00--2.73 subadult bass/hour. Embayment electrofishing CPUE was higher than tributary or main channel except in spring, when tributary CPUE was highest.;Core use areas were calculated from biotelemetry data and ranged from 88--59,400 m2, representing 0.02--89.00% of available study location macrohabitat. Subadult bass movement was limited to nursery embayments or tributaries with infrequent movement to nearby main channel areas. Bass preferred a mixed microhabitat consisting of a combination of vegetation and woody debris. This mixed microhabitat was less common in …

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Novel Synthesis Of 3,4-Fused Indoles, Jeremiah Wallace Hubbard Dec 2001

Novel Synthesis Of 3,4-Fused Indoles, Jeremiah Wallace Hubbard

Graduate Theses, Dissertations, and Problem Reports (ETD)

The goal of this project was to synthesize 3,4-fused indoles having a variety of ring sizes and a variety of functional groups. This has been accomplished by the development of a novel palladium-catalyzed route to 3,4-fused indoles. The key steps are two palladium-catalyzed reactions, an intramolecular Heck reaction followed by a reductive N-heteroannulation. Using this route, a number of 3,4-fused indoles were prepared in acceptable yields.

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Influence Of The West Virginia Dome On Paleocurrent Patterns In The Upper Devonian-Lower Mississippian Price Formation In The Central Appalachians, Sheldon James Murphy Dec 2001

Influence Of The West Virginia Dome On Paleocurrent Patterns In The Upper Devonian-Lower Mississippian Price Formation In The Central Appalachians, Sheldon James Murphy

Graduate Theses, Dissertations, and Problem Reports (ETD)

Upper Devonian-Lower Mississippian sedimentation was influenced by a positive area known as the West Virginia Dome located in the Central Appalachians of West Virginia. Paleocurrent data collected from the Price Formation demonstrates the significance of the dome on paleoflow patterns. Exposures in West Virginia are located along the Allegheny Front and include the lowermost marine Oswayo Member, Riddlesburg Shale Member, unnamed Upper Member and the uppermost non-marine Rockwell Member. These units overlie the Devonian Hampshire Formation or Greenland Gap Formation and underlie the Mississippian Greenbrier Limestone or Maccrady Formation. At the center of the dome the Price Formation is absent …

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Changes In Water Quality In Deckers Creek From 1974 To 2000, Jason Allen Stewart Dec 2001

Changes In Water Quality In Deckers Creek From 1974 To 2000, Jason Allen Stewart

Graduate Theses, Dissertations, and Problem Reports (ETD)

The Deckers Creek drainage basin covers approximately 16,600 hectares (62.9 square miles) in Monongalia and Preston Counties of West Virginia. Throughout the twentieth century, this watershed has received high levels of pollution in several forms. A 1974 study examined the water chemistry in Deckers Creek over a six-month period at 29 sample points. Water samples from the same sites were collected and analyzed monthly from March 1999 through October 2000 for acidity, alkalinity, total iron, aluminum, manganese, and other metals, as well as for fecal coliform and fecal streptococcus concentrations. Most of the tributaries sampled in 1999--2000 showed reduced metal …

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Pest Management Practices Used By West Virginia Corn Growers, Leasa Dianne Wilkerson Dec 2001

Pest Management Practices Used By West Virginia Corn Growers, Leasa Dianne Wilkerson

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this study was to provide information that might be useful to researchers and extension personnel at West Virginia University in developing and designing educational programs concerning pest management for corn farmers. This research identified current trends in management practices, insect, fungal, and weed problems, and educational needs so that instructional materials can be designed to meet clientele needs. Data were collected via 100 questionnaires mailed to farmers in the top ten corn producing counties in West Virginia. Of these, thirty-three useable surveys were returned.;It was found that Gray leaf spot and Maize virus were the most prevalent …

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Studies Of The Mammalian Ovarian Endothelin System, Marietta Felicidad Wright Dec 2001

Studies Of The Mammalian Ovarian Endothelin System, Marietta Felicidad Wright

Graduate Theses, Dissertations, and Problem Reports (ETD)

In porcine ovaries, endothelin-1 (ET-1) may have an autocrine/paracrine role in follicular development. Endothelin-converting enzyme-1 (ECE-1) converts big endothelin-1 to ET-1. In situ hybridization was used to determine the ovarian compartment that synthesizes ECE-1. ECE-1 mRNA was detected in granulosa cells of large (10 mm) and medium (3 mm) antral follicles. This study, in conjunction with previous studies suggests a novel autocrine role of ET-1 as a possible local ovarian factor of follicular development. ET-1 may play a role during prostaglandin (PG) F2 alpha-induced luteal regression in the cow. Effects of PGF2 alpha treatment were examined during early and mid-luteal …

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