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Designing A Face Detection Captcha, Adam C. Day
Designing A Face Detection Captcha, Adam C. Day
Graduate Theses, Dissertations, and Problem Reports (ETD)
Completely Automated Tests for Telling Computers and Humans Apart (CAPTCHAs) are quickly becoming a standard for security in every online interface that could be the subject to spam or other exploitation. The majority of today's CAPTCHA technologies rely on text-based images, which present the user with a string of distorted characters and asks the user to type out the characters. The problem with CAPTCHAs is that they are often difficult to solve and can generally be successfully defeated using techniques such as segmentation and optical character recognition. We introduce an image face recognition based CAPTCHA which presents the user with …
The Alto Trombone As A Transposing Instrument, Brian Kirke Plitnik
The Alto Trombone As A Transposing Instrument, Brian Kirke Plitnik
Graduate Theses, Dissertations, and Problem Reports (ETD)
Coinciding with a concern for authenticity and balance in the orchestral brass section, and a renewed interest in 18th century solo trombone literature, the nearly forgotten alto trombone has enjoyed a rousing comeback in recent decades. The alto trombone has traditionally existed as a concert-pitch instrument likely due to its early use in church music as a means of doubling the voice. Standard notational practice for the modern E-Flat alto has changed little over the centuries. While performance practice in previous centuries is not verifiable, current alto trombonists are tenor trombonists first; the alto trombone is nearly always a secondary …
Bat Use Of Created And Natural Wetlands, Marcia L. Maslonek
Bat Use Of Created And Natural Wetlands, Marcia L. Maslonek
Graduate Theses, Dissertations, and Problem Reports (ETD)
Compensatory wetland mitigation is a common practice to account for wetland losses due to dredging and filling under the Clean Water Act, but successful replacement of function is rarely achieved. Small, isolated wetlands also receive no federal protection, and are usually not included in accounts of losses. Although latest reports show an increase in wetlands for the first time, this is due in large part to voluntary construction of open water ponds, while the loss of freshwater emergent wetlands continues to decline. Research on the wildlife functions of wetlands has focused on plants, invertebrates, avian or amphibian species. But wetlands …
Sex Differences In The Myocardial Response To Prenatal And Behavioral Stress, Heather Rose Mullenax
Sex Differences In The Myocardial Response To Prenatal And Behavioral Stress, Heather Rose Mullenax
Graduate Theses, Dissertations, and Problem Reports (ETD)
Prenatal stress (PS) has been shown to exert profound effects on many organs in a variety of species. There is considerable evidence for sex-specific effects of prenatal stress. Our laboratory is the first to report effects of prenatal stress on myocardial function in male rats. The purpose of this study was to confirm our previous evidence of differences in myocardial function among prenatally stressed male and female rats and to explore possible mechanisms responsible for this difference. In this study, male and female Sprague-Dawley rats were subjected to prenatal stress (mother was stressed on day 14--21 of gestation) followed by …
Basin Analysis And Aqueous Chemistry Of Fluids In The Oriskany Sandstone, Appalachian Basin, Usa, Jamie C. Skeen
Basin Analysis And Aqueous Chemistry Of Fluids In The Oriskany Sandstone, Appalachian Basin, Usa, Jamie C. Skeen
Graduate Theses, Dissertations, and Problem Reports (ETD)
The Oriskany Sandstone of the Appalachian basin is a widely distributed saline aquifer which has produced large quantities of hydrocarbons. Currently the Oriskany is host to numerous gas storage fields and is a potential target for large-scale geologic storage of CO2. Published and unpublished data of rock characteristics, pressure, temperature, and formation water geochemistry, along with new brine samples were integrated within a geographical information system to better understand the regional-scale hydrogeological regime and its relation to geologic CO2 sequestration potential. The up-dip flow of the Oriskany Sandstone formation waters is generally controlled by outcrops at high elevation to the …
Effects Of Diadochokinetic Rate On Vocal Fundamental Frequency And Intensity In Normally Speaking Young Adults, Oya Topbas
Graduate Theses, Dissertations, and Problem Reports (ETD)
It has been commonly assumed that as people speak faster, they speak in higher vocal fundamental frequencies. Since the frequency and intensity often vary together, vocal intensity is expected to increase with speaking rate as well. The purpose of this study was to explore how speaking rate affects vocal fundamental frequency and intensity during diadochokinetic speaking tasks in normal speaking adults. Twenty-four normal young adults, 12 male and 12 female, were asked to repeat the syllables "/pLambda/, /pLambda-t[schwa]/, and /pLambda-t[schwa]-k[schwa]/" at a self-selected comfortable rate, then at a slow rate modeled about one syllable per second, and finally at their …
The Stability Of The Wala Ridge As A Landmark For Determining Dental Arch Form, Kolin E. Weaver
The Stability Of The Wala Ridge As A Landmark For Determining Dental Arch Form, Kolin E. Weaver
Graduate Theses, Dissertations, and Problem Reports (ETD)
Objectives. To evaluate changes to the WALA Ridge when subjected to orthodontic treatment using customized WALA Ridge archwires and preformed archwires, and ascertain trends within the United States amongst practicing orthodontists regarding arch form selection. Methods. 10 control subjects, 20 customized archwire subjects, and 20 preformed archwire subjects were compared using pre and post treatment mandibular casts for the experimental groups and two timepoint mandibular casts with two years between collection for the control group. Dental and Dentoalveolar changes were then measured from T1 to T2 for each of the groups. Furthermore, an electronic survey was distributed to all active …
The Effect Of Aging And Resveratrol Supplementation On Bone Mass And Strength In Hindlimb Suspended Male Rats, Stephanie Wright
The Effect Of Aging And Resveratrol Supplementation On Bone Mass And Strength In Hindlimb Suspended Male Rats, Stephanie Wright
Graduate Theses, Dissertations, and Problem Reports (ETD)
Resveratrol has recently become a popular dietary supplement because of its potential for reducing the effects of aging and various age-related diseases. However, few studies have investigated the role of resveratrol in improving bone loss associated with aging. It has been widely reported that mechanical unloading increases bone loss. The elderly experience a prevalence of reduced mechanical loading due to declining activity levels and increased incidence of bed rest. In rats, hind-limb suspension (HLS) simulates mechanical unloading of bone. Therefore, the objective of this study was to examine the effects of aging and resveratrol supplementation on bone health in HLS …
Predicting The Gas-Condensate Extended Composition Analysis, Muzher I. Almusabeh
Predicting The Gas-Condensate Extended Composition Analysis, Muzher I. Almusabeh
Graduate Theses, Dissertations, and Problem Reports (ETD)
The objective of this study was to predict the extended composition of gas condensate fluid in order to enhance phase behavior prediction via equation of state. This research work introduces a systematic methodology to estimate the extended heptane plus composition by matching the mole fraction, the average molecular weight, the average specific gravity and the dew point pressure. For the extended method to be accepted, the averaging properties results should be within 3% of the lab results. A number of published compositional data have been used to verify the reliability of this methodology. Four different methods are compared and analyzed, …
Paramagnetic Resonance Studies Of Defects In Titanium Dioxide Crystals, Shan Yang
Paramagnetic Resonance Studies Of Defects In Titanium Dioxide Crystals, Shan Yang
Graduate Theses, Dissertations, and Problem Reports (ETD)
Electron paramagnetic resonance (EPR) and electron-nuclear double resonance (ENDOR) are used to identify and characterize point defects in TiO2 crystals having the rutile structure. Defect production occurs at low temperature during illumination with 442 nm laser light. Spectra with S = 1/2 and S = 1 are assigned to singly ionized and neutral oxygen vacancies, respectively. These oxygen vacancies have their unpaired spins localized on the two neighboring titanium ions aligned along the [001] axis. A Ti3+ ion next to a substitutional Si4+ ion, a Ti3+ self-trapped electron, and a self-trapped hole on the oxygen sublattice are also observed.;Fluorine ions …
A Leap Of Faith: *Scale, Critical Realism And *Emergence In The Geography Of Religion, Michael P. Ferber
A Leap Of Faith: *Scale, Critical Realism And *Emergence In The Geography Of Religion, Michael P. Ferber
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation explores the role of scale in human geography through a study involving a critical realist investigation of the geography of religious adherence. Using the contributions of a critical realist framework of stratification, emergence, and pluralistic methodologies, religious adherence is studied at the scales of the individual adherent, the church, and within local associations of churches. Analysis was performed through a study of two denominational congregations and an independent congregation in Harrison County, West Virginia and used a combination of surveys and in-depth interviews with religious adherents, pastors and local denominational leaders. The conceptual framework of this dissertation stands …
Religious And Environmental Values In Pcusa And Ucc Church Camp Programs, Ross S. Bash
Religious And Environmental Values In Pcusa And Ucc Church Camp Programs, Ross S. Bash
Graduate Theses, Dissertations, and Problem Reports (ETD)
The association between denominational affiliation, as the independent variable, and (1) religious values, (2) environmental values, and (3) the integration of religious values and environmental values, as the dependent variables, in church camp programs of the Presbyterian Church (U.S.A.) (PCUSA) and the United Church of Christ (UCC) was examined through survey research of PCUSA and UCC church camps across the United States. The results indicated that there is a significant statistical relationship between PCUSA and UCC church camp programs by reference to denominational affiliation for all three dependent variables.
Empirical Analysis Of Bwt-Based Lossless Image Compression, Kalyan Varma Bhupathiraju
Empirical Analysis Of Bwt-Based Lossless Image Compression, Kalyan Varma Bhupathiraju
Graduate Theses, Dissertations, and Problem Reports (ETD)
The Burrows-Wheeler Transformation (BWT) is a text transformation algorithm originally designed to improve the coherence in text data. This coherence can be exploited by compression algorithms such as run-length encoding or arithmetic coding. However, there is still a debate on its performance on images. Motivated by a theoretical analysis of the performance of BWT and MTF, we perform a detailed empirical study on the role of MTF in compressing images with the BWT. This research studies the compression performance of BWT on digital images using different predictors and context partitions. The major interest of the research is in finding efficient …
Permeability Of Hot Mix Asphalt Concrete As Affected By Binder Content, Joseph A. Giompalo
Permeability Of Hot Mix Asphalt Concrete As Affected By Binder Content, Joseph A. Giompalo
Graduate Theses, Dissertations, and Problem Reports (ETD)
One of the primary objectives when constructing hot mix asphalt concrete (HMAC) is achieving the target density in order for the pavement to be impermeable. If the density is too low, water infiltration causes pavement damage from freeze-thaw and other effects caused by the presence of water. If the pavement density is too high, rutting, flushing, and shoving will occur.;This research used the Florida Method of Test for Measurement of Water Permeability of Compacted Asphalt Paving Mixtures to examine how permeability is affected by binder content and compaction level. Asphalt samples containing 5.2, 5.7, 6.2, and 6.7 percent binder at …
Systematics And Evolutionary Paleoecology Of Crinoids From The St. Louis Limestone (Mississippian, Meramecian) Of The Illinois Basin, Lewis Anderson Cook
Systematics And Evolutionary Paleoecology Of Crinoids From The St. Louis Limestone (Mississippian, Meramecian) Of The Illinois Basin, Lewis Anderson Cook
Graduate Theses, Dissertations, and Problem Reports (ETD)
Very little attention has been paid to crinoids of the St. Louis Limestone since the 19th century. Now that the stratigraphic boundaries of the formation are well defined and a collection of crinoids specific to the St. Louis has become available, updated systematics and evolutionary paleoecology is possible.;Previous work recognized a significant transition in the macroevolution of crinoids that occurred during the Mississippian Period. The diversity of crinoid taxa changed substantially from faunas dominated by camerates and primitive cladids to those dominated by advanced cladids. Much of that change took place during the Meramecian Stage, which includes the St. Louis …
Comparing The Use Of Qpcr On Isolated Smallmouth Bass (Micropterus Dolomieu) And Rainbow Trout (Oncorhynchus Mykiss) Hepatocytes For Estrogen Screening, Emily Breana Chambers
Comparing The Use Of Qpcr On Isolated Smallmouth Bass (Micropterus Dolomieu) And Rainbow Trout (Oncorhynchus Mykiss) Hepatocytes For Estrogen Screening, Emily Breana Chambers
Graduate Theses, Dissertations, and Problem Reports (ETD)
Exposure of fish to estrogenic endocrine disrupting chemicals (EEDCs) is believed to be a contributing factor of intersex (the presence of immature oocytes in the testes) and fish kills in the Potomac and Shenandoah Rivers. EEDCs are often seen in the effluent of wastewater treatment plants. A simple and common way to look at the estrogenicity of water samples is to deploy Passive Organic Chemical Integrative Samplers (POCIS) and extract the hydrophilic compounds from the filters with methanol. Samplers were deployed upstream and downstream of two wastewater treatment plants, one on the Conococheague River and one on the Monocacy River, …
Evaluating The Impact Of Oceanic/Atmospheric Teleconnections On Historical Wildfires In West Virginia (1939--2006), Cary Lynch
Graduate Theses, Dissertations, and Problem Reports (ETD)
Oceanic/atmospheric oscillations affect climate in many ways. This study quantitatively examined climate teleconnection patterns and in turn analyzed the influence of climate on wildfire activity within West Virginia from 1939--2006. Identifying the linkages between oscillations and climate variability has the potential to greatly improve seasonal forecasting capabilities. Despite the complexity inherent in local fire regimes, regional fire activity often oscillates in phase with year-to-year climatic variability. This climate-fire connection raises the possibility that historical factors inherent in the local ecosystem are overridden by regional climatic events and trends. A robust statistical analysis that utilized correlation, regression, principle components, and Superposed …
Self-Efficacy For The Self-Regulation Of Learning: An Examination Of A College Success Strategies Course, Brandon M. Agostini
Self-Efficacy For The Self-Regulation Of Learning: An Examination Of A College Success Strategies Course, Brandon M. Agostini
Graduate Theses, Dissertations, and Problem Reports (ETD)
Self-efficacy has been shown to be a good predictor of task performance. An area identified as needing further research is the influences of self-efficacy. The objective of this research project was to assess efficacy beliefs related to the regulation of learning for students enrolled in a semester long college success strategies course. This was done to determine if learning about the learning process and skills and behaviors that promote learning would positively influence efficacy beliefs related to the regulation of learning. The college success strategies course was designed to teach students various learning and time management skills. Efficacy beliefs were …
Getting Down To Business: An Efl Curriculum Design For The Business Setting, Gabriel Brito Amorim
Getting Down To Business: An Efl Curriculum Design For The Business Setting, Gabriel Brito Amorim
Graduate Theses, Dissertations, and Problem Reports (ETD)
In today's world of international commerce and technology-driven communication, the exchange of information across countries and cultures has become crucial to creating a global citizenry. After World War II, efforts to create a global commercial market resulted in the promotion of communication across cultures. The purpose of this thesis is to outline a theoretical rationale for a beginner English for Specific Purposes (ESP) curriculum in a foreign setting (Brazil). The curriculum consists of four courses organized around three pillars: (a) the production of spontaneous contextualized communication in the target language, (b) the development of cultural competence specific to the business …
The Effects Of Preschoolers' Goal Setting, Decision Making, And Self-Recording On Academic Achievement, Keri Smith
The Effects Of Preschoolers' Goal Setting, Decision Making, And Self-Recording On Academic Achievement, Keri Smith
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study investigated to see if preschool children could determine their own achievable goal and use self-recording of the step by step instruction to achieve the goal. In addition, children presented their goals to their peers. To investigate the effect of self-recording of step by step instruction, two individual case studies were completed in experiment one. A multiple baseline across participants was used in experiment two to measure three separate children's achievement during baseline and intervention of self-recording and step by step instruction. It was found that over 50% of the children could state their own achievable goal. It was …
Enhanced Coal Bed Methane Production And Sequestration Of Carbon Dioxide In Unmineable Coal Seams., Camilo E. Calderon
Enhanced Coal Bed Methane Production And Sequestration Of Carbon Dioxide In Unmineable Coal Seams., Camilo E. Calderon
Graduate Theses, Dissertations, and Problem Reports (ETD)
The process of modeling reservoirs that are controlled by desorption such as Coal Bed Methane has always been challenging due to the complexities associated with flow of fluids in these types of reservoirs. These complexities become more notable while the injection process is taking place since interaction between the injected gas alters the coal properties with respect to time. This manuscript summarizes the results of a study that includes reservoir simulation and modeling efforts that are focused on natural gas production and subsequent CO2 injection into an unmineable coal seam in the Marshall Country West Virginia. Two coal seams (Pittsburgh …
Analysis Of Carrion Fly (Diptera: Calliphoridae) Population Genetics Using Amplified Fragment Length Polymorphism (Aflp) Profiles., Christine J. Picard
Analysis Of Carrion Fly (Diptera: Calliphoridae) Population Genetics Using Amplified Fragment Length Polymorphism (Aflp) Profiles., Christine J. Picard
Graduate Theses, Dissertations, and Problem Reports (ETD)
Worldwide, there are over 1000 species of blow flies (Diptera: Calliphoridae). Blow flies display a variety of habits, however they are best known for their role in the decomposition of carrion. As yet, there are few studies of their population genetic structure, although such data would contribute to such fields as pest management, taxonomy, forensic entomology and veterinary medicine. Although it is typically assumed that carrion fly populations are panmictic, this has been disputed. This research focused on developing a new protocol to understand the population genetic structure in carrion flies using amplified fragment length polymorphism (AFLP) profiles. My specific …
Numerical Modeling Of Near-Surface Carbon Dioxide Migration With Barometric Pumping Effects., Guoxiang Liu
Numerical Modeling Of Near-Surface Carbon Dioxide Migration With Barometric Pumping Effects., Guoxiang Liu
Graduate Theses, Dissertations, and Problem Reports (ETD)
With anthropogenic activities, the concentration of CO2 in the atmosphere has dramatically risen, very likely resulting in global warming and climate change. Capturing and disposing of the produced CO2 in geological formations can mitigate this problem provided that there is no substantial leakage from the subsurface back to atmosphere for hundreds of years. The detection of any CO2 leakage is essential to verify that the sequestration is effective, to initiate corrective actions if leakage is discovered, and to accurately assign storage credits in a "cap and trade" regulatory system. Natural fluctuations in atmospheric pressure are one factor that influences the …
Incremental Validity Of The Psychopathic Personality Inventory - Revised In Predicting Program Failure., Katrina L. Mccoy
Incremental Validity Of The Psychopathic Personality Inventory - Revised In Predicting Program Failure., Katrina L. Mccoy
Graduate Theses, Dissertations, and Problem Reports (ETD)
The current study examined the incremental validity of the Psychopathic Personality Inventory- Revised in relation to the Psychological Inventory of Criminal Thinking Styles and Personality Assessment Inventory in predicting failure of a Residential Drug Abuse Treatment Program among 222 male inmates. Failure was defined as expulsion, withdrawal, or restart of the residential phase of the treatment program or failure during the community transition phase. One-hundred fifty-eight inmates completed the program and 64 failed. Analyses revealed that scales on the Psychopathic Personality Inventory-Revised and the PAI predicted treatment failure with low predictive accuracy that was greater than chance. Specifically, the Psychopathic …
Seeing Science Everywhere: A Case Study Of The Perceptions Of Three Fifth Grade Science Teachers' Complementary Use Of The Arts In The Science Classroom In An Economically Distressed County In Central Appalachia., Angela A. Mckeen
Graduate Theses, Dissertations, and Problem Reports (ETD)
By employing qualitative methods, this study sought to determine the perceptions three fifth grade science teachers held about using the arts to complement science teaching in an economically distressed county in rural Appalachia and the perceived roles the arts and sciences play in the lives of those living in rural Appalachia. Each case was studied using participant-observer observations, personal journals, archival data, and interviewed using semi-structured, in-depth interview techniques. From these data, unique themes emerged for each of the three cases. Constant comparative analysis was used to analyze the data set for each individual case. A cross-case analysis was then …
Development Of Gold-Immobilized P450 Platform For Exploring The Effect Of Oligomer Formation On P450-Mediated Metabolism For In Vitro To In Vivo Drug Metabolism Predictions., Jarod L. Kabulski
Graduate Theses, Dissertations, and Problem Reports (ETD)
The cytochrome P450 (P450) enzyme family is responsible for the biotransformation of a wide range of endogenous and xenobiotic compounds, as well as being the major metabolic enzyme in first pass drug metabolism. In vivo drug metabolism for P450 enzymes is predicted using in vitro data obtained from a reconstituted expressed P450 system, but these systems have not always been proven to accurately represent in vivo enzyme kinetics, due to interactions caused by oligomer formation. These in vitro systems use soluble P450 enzymes prone to oligomer formation and studies have shown that increased states of protein aggregation directly affect the …
Analyzing The Role Of Ck2 And Pp2a In Drosophila Position Effect Variegation, Swati Banerjee
Analyzing The Role Of Ck2 And Pp2a In Drosophila Position Effect Variegation, Swati Banerjee
Graduate Theses, Dissertations, and Problem Reports (ETD)
The results of the investigation into the role of CK2 and PP2A in Drosophila position effect variegation (PEV) and chromatin modification are presented here. PEV is seen when a gene normally found in euchromatin is placed in close proximity to heterochromatin. The propensity of heterochromatin to spread down the chromosome often results in inactivation of the displaced gene by compaction into heterochromatin. The study presented here utilized two different PEV reporter genes for investigating the role of two posttranslational modifying enzymes, the kinase CK2 and the phosphatase PP2A in chromatin formation. The reporter genes used in this study encode for …
Aztec Musical Styles In Carlos Chavez's "Xochipilli: An Imagined Aztec Music" And Lou Harrison's "The Song Of Quetzalcoatl": A Parallel And Comparative Study., Shawn M. Roberts
Aztec Musical Styles In Carlos Chavez's "Xochipilli: An Imagined Aztec Music" And Lou Harrison's "The Song Of Quetzalcoatl": A Parallel And Comparative Study., Shawn M. Roberts
Graduate Theses, Dissertations, and Problem Reports (ETD)
From the appearance of Amaldeo Roldan's Ritmica No. 5 and No. 6 in 1930 and Edgard Varese's Ionisation in 1931, until the United States involvement in World War II brought a hiatus to the genre, over fifty works for percussion ensemble were published. At the height of this outpouring, two works for percussion ensemble on a similar cultural topic were written, Carlos Chavez's Xochipilli: An Imagined Aztec Music (1940) and Lou Harrison's The Song of Quetzalcoatl (1941). Within Chavez and Harrison's titles are the names of two well-known and highly revered Aztec deities, Xochipilli and Quetzalcoatl. Consequently, this project determines …
Artificial Neural Networks For Reservoir Level Detection Of Carbon Dioxide Seepage Location Using Permanent Down-Hole Pressure Data., Jalal Jalali
Graduate Theses, Dissertations, and Problem Reports (ETD)
Monitoring the potential seepage of CO2 is a required practice for any CO2 sequestration project. Monitoring is used in order to ensure the efficiency of the sequestration process and that the CO 2 will remain in the target formation for extended periods of time. Different techniques that exist in the literature differ based on their resolution and location of their application. Monitoring techniques can be divided into three categories: surface techniques, which measure CO2 at or above the surface, shallow depth techniques, which monitor the concentration of CO2 in soil or shallow aquifers, or deep techniques, which monitor CO2 movement …
Ac And Dc Electrophoretic Separations: Investigating Binding Affinity Interactions And Particle Surface Properties., Christian M. White
Ac And Dc Electrophoretic Separations: Investigating Binding Affinity Interactions And Particle Surface Properties., Christian M. White
Graduate Theses, Dissertations, and Problem Reports (ETD)
Capillary electrophoresis is a well-documented separation technique offering rapid, automated analyses with low-sample volume requirements and broad applicability to biological and inorganic analytes. Here it serves as a platform to investigate the binding affinity between small molecules and bovine serum albumin. It is also used to characterize the surface properties of surface-modified polystyrene particles, including the zeta potential and surface conductance. In both instances, the electrophoretic mobility of the analytes is prioritized through passivation of the surface silanols of the fused silica capillary, which suppresses electroosmotic flow. For the affinity studies, suppression of electroosmotic flow allows for the separation of …