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Iris Recognition In Multiple Spectral Bands: From Visible To Short Wave Infrared, Raghunandan Pasula
Iris Recognition In Multiple Spectral Bands: From Visible To Short Wave Infrared, Raghunandan Pasula
Graduate Theses, Dissertations, and Problem Reports (ETD)
The human iris is traditionally imaged in Near Infrared (NIR) wavelengths (700nm-900nm) for iris recognition. The absorption co-efficient of color inducing pigment in iris, called Melanin, decreases after 700nm thus minimizing its effect when iris is imaged at wavelengths greater than 700nm. This thesis provides an overview and explores the efficacy of iris recognition at different wavelength bands ranging from visible spectrum (450nm-700nm) to NIR (700nm-900nm) and Short Wave Infrared (900nm-1600nm). Different matching methods are investigated at different wavelength bands to facilitate cross-spectral iris recognition.;The iris recognition analysis in visible wavelengths provides a baseline performance when iris is captured using …
Development And Evaluation Of High Performance Fiber Reinforced Concrete As A Repairing Material, Manish Roy
Development And Evaluation Of High Performance Fiber Reinforced Concrete As A Repairing Material, Manish Roy
Graduate Theses, Dissertations, and Problem Reports (ETD)
Concrete is the most widely used man-made material in the world and is second only to water in terms of its utilization. Annually, 6 billion tons of concrete is produced in the world and the US consumption of concrete is over 2.5 tons a year per person (SDC Vision 2030 -- US Concrete Industry). It drives a US{dollar}100 billion industry in the United States alone employing over 2 million people. It enjoys huge acceptability over other construction materials across the globe. Though concrete is strong and durable, it does not last forever, especially when exposed to aggressive conditions. Deicing salts, …
The Web 2.0 Revolution: Using Technology To Shape Standard-Based Instruction, Joern-Timo Riepel
The Web 2.0 Revolution: Using Technology To Shape Standard-Based Instruction, Joern-Timo Riepel
Graduate Theses, Dissertations, and Problem Reports (ETD)
Different Web 2.0 applications, such as weblogs, podcasts, wikis, and twitter have revolutionized the way people interact online and opened a path to a new way of global mass-communication for every internet user. Web 2.0 applications have also proved to enhance foreign language instruction in terms of learner motivation, collaborative learning processes, time-and space independence for students across classroom boundaries, and chances for authentic language use and perception. This thesis demonstrates the uses of Web 2.0 to enhance standards-based foreign language education and address each of the five C's using 21st-century technologies. By implementing Web 2.0 as an instructional tool, …
Beyond Protest: Ethics Of Reconciliation In Post-Apartheid South African White Writing, Sohinee Roy
Beyond Protest: Ethics Of Reconciliation In Post-Apartheid South African White Writing, Sohinee Roy
Graduate Theses, Dissertations, and Problem Reports (ETD)
Beyond Protest: Ethics of Reconciliation in Post-Apartheid South African White Writing examines the politics and poetics of reconciliation in South Africa by comparing the defining (or, at least the initiating) document the Truth and Reconciliation Commission Report (TRC) with the ways in which concepts of "racial harmony" are presented in the post-apartheid novels of white authors like J.M.Coetzee, Nadine Gordimer, Antje Krog, and Andre Brink. South Africa's complex racial history dating back to the colonial times, the consequent internalization of imposed racial identities within resistance movements, and the institutionalization of racist practices through state policies mean that its effort to …
Exploration Of Injection Strategy And Fuel Property Effects On Advanced Combustion, Ross H. Ryskamp
Exploration Of Injection Strategy And Fuel Property Effects On Advanced Combustion, Ross H. Ryskamp
Graduate Theses, Dissertations, and Problem Reports (ETD)
Over the past two decades increasingly strict emissions regulations have been implemented for on-road diesel engines. Additionally, reduced fuel consumption has recently become a priority for government regulatory agencies promising more stringent regulations on the horizon. This desire for less polluting, more efficient vehicles has fueled advanced engine research and development. Advanced combustion regimes such as homogeneous charge compression ignition (HCCI), premixed charge compression ignition (PCCI), and low temperature combustion (LTC) are topics at the forefront of this research. Each of these advanced combustion regimes essentially follow the same principle in which a homogeneous or near-homogeneous air and fuel mixture …
Ash Removal From Low Rank Coal, Deepankar Virendra Sharma
Ash Removal From Low Rank Coal, Deepankar Virendra Sharma
Graduate Theses, Dissertations, and Problem Reports (ETD)
The work presented here is concerned with cleaning of low rank coals such as Texas lignite. As a result, Jewett Texas lignite was cleaned from 28% ash by weight to 8.5%. In the first part of the thesis, it is proved that conventional cleaning techniques used for bituminous and sub-bituminous having pyritic impurities does not work for cleaning lignite coal because of different coal chemistry and the presence of clay impurities. Hence after trying conventional processes, there was a need for a new technique capable of removing clay from low rank coals.;Micronized coal, obtained from DevourX LLC, proved to be …
Sensory Evaluation And Quality Indicators Of Nutritionally Enhanced Egg Product With Omega-3 Rich Oils, Helenia Dawn Sedoski
Sensory Evaluation And Quality Indicators Of Nutritionally Enhanced Egg Product With Omega-3 Rich Oils, Helenia Dawn Sedoski
Graduate Theses, Dissertations, and Problem Reports (ETD)
Heart disease is a leading cause of death in the United States. Omega-3 (n-3) fatty acids (FA) positively affect heart health while high levels of cholesterol are an indication of poor heart health. Nutritionally-enhanced low-cholesterol egg sticks fortified with n-3 FA were developed; quality indicators were measured and sensory evaluations were conducted. Store-bought eggs were separated and egg whites were mixed with oil, spray dried egg whites, annatto (color) and salt. The oil sources included: algae, menhaden, flaxseed, and canola oils. Experimental egg batters and mixed whole egg (control) were cooked in the shape of a cheese stick, vacuum packed, …
Time-Dependent Performance Of Buried Pipes In A Consolidating Soil Medium, Laura A. Sesack
Time-Dependent Performance Of Buried Pipes In A Consolidating Soil Medium, Laura A. Sesack
Graduate Theses, Dissertations, and Problem Reports (ETD)
Buried pipes are used for several applications, including water conveyance, highway drainage, and the transport of sewage. Throughout the years, it has become increasingly popular to use pipes made of thermoplastic materials due to ease of fabrication, resistance to chemical corrosion, light weight, and low cost. The objective of this research was to investigate the deformations of buried double-corrugated high-density polyethylene (HDPE) and solid-wall polyvinylchloride (PVC) pipes surrounded by a consolidating soil medium. The finite element method was used to calculate the pipe deflections throughout a time period of fifty years. Combined influence of creep and soil consolidation was considered …
Friction And Leakage Characteristics Of Inflatable Structures In Tunnels, Joshua J. Sill
Friction And Leakage Characteristics Of Inflatable Structures In Tunnels, Joshua J. Sill
Graduate Theses, Dissertations, and Problem Reports (ETD)
Inflatable technology has become a popular alternative for replacing conventional ways of building structures. Inflatable structures offer the benefits of being lightweight and portable while maintaining needed rigidity and reducing production costs. These benefits have prompted the use of inflatables in confined spaces such as pipes and tunnels to act as barriers with minimal infrastructure modification. This work focuses on using these inflatables, or plugs, in transportation subway tunnels as a way to mitigate threats such as floods.;In order to stop the flow of water, the plug must be capable of being pressurized and apply enough pressure on the tunnel …
The Influence Of Perceived Safety Culture And Nurses' Work Environment On Medication Error Occurrence And Reporting, Joyce A. Shanty
The Influence Of Perceived Safety Culture And Nurses' Work Environment On Medication Error Occurrence And Reporting, Joyce A. Shanty
Graduate Theses, Dissertations, and Problem Reports (ETD)
Purpose: The purpose of this research study was to 1) compare differences in perceptions of the influence of organizational safety and 2) the nurses' practice environment on medication error occurrence and barriers to reporting among nurses working in Magnet, Magnet-aspiring, and non-Magnet hospitals using an Internet survey method.;Background: Over the last several years, there have been many publications that cite organizational variables that are potentially important in addressing medical errors and patient safety. Unfortunately, it is unclear which specific organizational factors contribute to errors and safety in health care organizations. Empiric support of the effects of the nurses' work environment …
The Role Of A Sense Of Coherence In The Prevention Of Compassion Fatigue, Mary Eleanor Schaffer
The Role Of A Sense Of Coherence In The Prevention Of Compassion Fatigue, Mary Eleanor Schaffer
Graduate Theses, Dissertations, and Problem Reports (ETD)
Compassion fatigue is defined as the syndrome experienced by a helper who meets the full diagnostic criteria for PTSD with a qualifying criterion A1 event that is not personal experience, but vicarious learning about a traumatic event that was experienced by a person with whom the therapist has a helper/client relationship. The prevention of compassion fatigue is considered important due to the pain associated with distress experienced by the helper and because it may result in a helper who is less able to provide effective treatment for clients. The sense of coherence (salutogenic) model proposed by Aaron Antonovsky (1987) identifies …
Estonia's Memory Politics In The Context Of European Integration, Marina Suhhoterina
Estonia's Memory Politics In The Context Of European Integration, Marina Suhhoterina
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study examines the process of European integration of Estonia from the perspective of memory politics. The main assumption of the research is that the Estonian political elite often refers to the Soviet past of the country and its reflection in Estonian national memory to frame and guide the political discourse of European integration. In order to test this hypothesis, I analyze the speeches delivered by the leading representatives of the Estonian political elite in the process of post-Soviet transformation. The findings of the study reveal development that is seemingly a paradox. Members of Estonian political elite have attempted to …
Molecular Phylogeny Of The Oestroidea, Baneshwar Singh
Molecular Phylogeny Of The Oestroidea, Baneshwar Singh
Graduate Theses, Dissertations, and Problem Reports (ETD)
The superfamily Oestroidea includes approximately 9% (≈14,000 spp.) of the order Diptera. Many members of the superfamily are of medical, veterinary, agricultural, and forensic importance. Although Oestroidea has been the subject of much scientific scrutiny, the exact patterns of phylogenetic relationships among the key groups of the superfamily are unresolved and controversial. For a better understanding of oestroid evolutionary hypotheses, phylogenies of Oestroidea were reconstructed at several taxonomic levels using DNA sequence data. The specific aims were to determine the phylogeny of the 1) genus Chrysomya (Chrysomyinae); 2) subfamily Chrysomyinae (Calliphoridae); 3) family Oestridae (Oestroidea); and 4) family Calliphoridae (Oestroidea). …
Comparison Of Parent-Child Interactions In Abusive And Control Families: An Observational Study, Jocelyn F. O. Stokes
Comparison Of Parent-Child Interactions In Abusive And Control Families: An Observational Study, Jocelyn F. O. Stokes
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study sought to identify differences in caregiver-child interactions between caregivers with and without prior reports of child physical abuse. Data for the abuse group were made available for secondary analyses by the National Archive for Child Abuse and Neglect via Cornell University. Data for the comparison group were collected for a previous study at West Virginia University. For both studies, caregiver-child dyads participated in a 5---minute, videotaped observation in a situation in which the parent had to exert moderate control over the child. Data that had been coded using the Dyadic Parent---Child Interaction Coding System (Eyberg, et al., 1994; …
Investigation Of Discharge Coefficients For Irregular Orifices, P.J. Spaur
Investigation Of Discharge Coefficients For Irregular Orifices, P.J. Spaur
Graduate Theses, Dissertations, and Problem Reports (ETD)
Discharge coefficients for irregular orifices have not been extensively studied and there exists a need to investigate these discharge properties and compare them to uniform orifices. The definition of an irregular orifice is an orifice profile that has no uniform shape or dimension such as that found in circular and square geometries. An irregular orifice could be present in a fluid system as a result of a puncture, rupture or fault. This research was conducted alongside a project involving inflatable structures to seal off an underground large scale piping system running below a waterway. An accurate prediction of the resulting …
Effects Of Load And Gradient On Musculoskeletal Loading During Dynamic Two-Wheeled Cart Pushing And Pulling, Yun Sun
Graduate Theses, Dissertations, and Problem Reports (ETD)
Pushing and pulling of carts are found to be associated with low back pain and shoulder complaints. It is currently unclear as to how the dynamic pushing and pulling tasks performed under different task conditions (e.g. weight, walkway gradient, direction of force application) affect the musculoskeletal loading of low back and shoulder joints. Therefore, the objective in this study was to evaluate dynamic pushing and pulling tasks to quantify their effects on the 3D musculoskeletal loading of low back and shoulder joints. Twelve male participants performed cart pushing pulling tasks along a 5° and 10° ramp by carrying loads of …
Interpretation, Meaning-Making, And Civic Engagement At Little Rock Central High School National Historic Site, Sandy Strickland
Interpretation, Meaning-Making, And Civic Engagement At Little Rock Central High School National Historic Site, Sandy Strickland
Graduate Theses, Dissertations, and Problem Reports (ETD)
Using qualitative methodology, this study investigated interpretation, meaning-making, and civic engagement at Little Rock Central High School National Historic Site. Based upon constructivist learning theory, the research focused on eight research questions including: 1) What memories do visitors recall from their visit to CHSNHS? 2) What kind of knowledge do visitors remember? 3) Are visitors making meaningful connections to the resource? 4) What meanings are visitors making? 5) How are the meanings made? 6) Are these meanings connected to civic engagement? 7) What types of citizens are visitors to Central High School NHS? 8) Longitudinal changes in knowledge, meaningful connections, …
Emotional Pain And Acute Nociception, Alison M. Vargovich
Emotional Pain And Acute Nociception, Alison M. Vargovich
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study examined differences and similarities in responses to acute nociception in adults with a significant history of emotional pain relative to matched controls with a significant past positive life experience and a sample of chronic pain patients. Using 28 volunteers who responded to advertisements (n = 14, emotional pain group; n = 14, positive life experience group), and 14 chronic pain patients from a prior study, this investigation utilized measures of pain threshold and tolerance during a laboratory finger pressure pain induction experiment. Each participant experienced two levels of pressure pain (i.e., high and low) and two levels of …
An Investigation Of Diesel Pm Particle Morphology Using Tem And Sem, Ganesh Vedula
An Investigation Of Diesel Pm Particle Morphology Using Tem And Sem, Ganesh Vedula
Graduate Theses, Dissertations, and Problem Reports (ETD)
This research investigates the effect of engine load and combustion mode on the size, shape and microstructure of PM particles of two diesel engines using a scanning mobility particle sizer (SMPS), and electron microscopes including scanning electron microscope (SEM) and transmission electron microscope (TEM). The effect of engine load on the morphology of PM particle was investigated using a 2004 MACK MP7-355E heavy-duty diesel engine. The effect of combustion mode on the morphology of the PM particles was preliminarily examined using 2005 Opel 1.9 L light-duty diesel engine. The SEM images were processed using ImageJ V: 1.44o software to obtain …
Role Of Nitric Oxide And Reactive Oxygen Species In Apoptotic, Inflammatory And Migratory Signaling Pathways In Cancer, Siera Jo Talbott
Role Of Nitric Oxide And Reactive Oxygen Species In Apoptotic, Inflammatory And Migratory Signaling Pathways In Cancer, Siera Jo Talbott
Graduate Theses, Dissertations, and Problem Reports (ETD)
Cancer represents over 200 different diseases of different cell and tissue type origins. The heterogeneity of tumors presents challenges in finding effective treatments for the different diseases. Therefore, understanding the molecular events that promote tumorgenesis can assist in the development of better targeted treatments and therapies. Reduction/oxidation (redox) biology has become increasingly important as high levels of nitric oxide (NO) and reactive oxygen species (ROS) are reported in both the development of cancer and in response to treatment. In addition to their known potential biotoxic effects on DNA, proteins and lipids, NO and ROS are recognized as secondary messengers within …
Where Have All The Women Combatants Gone? The Realities Of Soviet Female Veterans In The Immediate Post World War Two Period, Jekaterina Tsizikova
Where Have All The Women Combatants Gone? The Realities Of Soviet Female Veterans In The Immediate Post World War Two Period, Jekaterina Tsizikova
Graduate Theses, Dissertations, and Problem Reports (ETD)
Relying on numerous testimonies of Soviet women combatants, this thesis demonstrates the wartime and post-war realities of Soviet women soldiers. About a million of women combatants took an active part in the war, yet they remained in the shadow of the Great Victory of 1945. This paper explores the unwillingness of the Soviet state to recognize the contribution of Soviet women combatants in the fighting of the Second World War. Why did the myth of the Great Patriotic War exclude women? Why were some women soldiers more worthy of recognition than others? What, compared to female veterans, was the status …
The Effects Of Parent-Child Interaction Therapy On Symptoms And Impairment In Young Children With Attention-Deficit/Hyperactivity Disorder, Stephanie M. Wagner
The Effects Of Parent-Child Interaction Therapy On Symptoms And Impairment In Young Children With Attention-Deficit/Hyperactivity Disorder, Stephanie M. Wagner
Graduate Theses, Dissertations, and Problem Reports (ETD)
Attention-Deficit/Hyperactivity Disorder (ADHD) is an externalizing disorder beginning in childhood with symptoms and impairment persisting into adulthood for many individuals. Although ADHD is identifiable and diagnostically valid during the preschool years, the majority of the research has focused on treating school-aged children. Some research suggests that behavioral parent training (BPT) programs are efficacious in treating young children. Yet, results are inconsistent and previous research has methodological limitations that restrict interpretations of the data. Parent-Child Interaction Therapy (PCIT), a widely-disseminated evidence-based BPT program for young children with disruptive behavior problems, incorporates components (e.g., in vivo coaching) that may be particularly effective …
Development Of An Emotional Pain Interview, Ben Weinstein
Development Of An Emotional Pain Interview, Ben Weinstein
Graduate Theses, Dissertations, and Problem Reports (ETD)
This study developed and tested the Emotional Pain Interview (EPI), a semi-structured interview measuring emotional pain, using community dwelling adults with a significant history of emotional pain (n = 16; emotional pain group) relative to matched controls reporting a prior significant positive life experience (n = 16; positive life experience group). The EPI and a matching positive life event interview were used to assess all participants regarding prior emotionally painful and positive life experiences. Participants completed measures of anxiety sensitivity, depression, and posttraumatic stress disorder. Ratings of emotional responding (i.e., Valence, Arousal, and Control/Dominance) were made for prior emotionally painful …
Gender Recognition And Appearance Description In Unconstrained Images Of Human Body, Qin Wu
Gender Recognition And Appearance Description In Unconstrained Images Of Human Body, Qin Wu
Graduate Theses, Dissertations, and Problem Reports (ETD)
Gender recognition has many useful applications, ranging from business intelligence, through to image search and social activity analysis. Traditional research on gender recognition focuses on face images in a constrained environment. In this work, we propose a novel problem of gender recognition in articulated human body images acquired from an unconstrained environment in the real world. Our empirical study answers the question of whether gender recognition can be performed in articulated body images, and discovers important issues such as which body parts are informative, how many body parts are needed to combine together, and what representations are good for articulated …
De Novo Asymmetric Synthesis Of Biologically Active Carbohydrate Natural Products And Related Sar Studies, Bulan Wu
Graduate Theses, Dissertations, and Problem Reports (ETD)
The carbohydrate portion of natural products plays an important role in its biological activity, such as solubility, target binding, tissue targeting, and membrane transportation. Over the last fourteen years, Dr. O'Doherty's group has been developing de novo methodologies to build the desired carbohydrate functionality and stereochemistry within each sugar from simple achiral starting materials in stark contrast to the traditional carbohydrate approach using known sugar isomers as starting materials. The methodologies depend on a highly diasteroselective palladium-catalyzed glycosylation reaction to control the anomeric stereochemistry, and a highly enantioselective Noyori reduction to install the sugar absolute stereochemistry. Appropriate post-glycosylation transformations create …
Dwindling Into A Wife: Women And The Culture Of Marriage In Britain, 1760-1820, Lori Halvorsen Zerne
Dwindling Into A Wife: Women And The Culture Of Marriage In Britain, 1760-1820, Lori Halvorsen Zerne
Graduate Theses, Dissertations, and Problem Reports (ETD)
This dissertation examines women and marriage ideology in courtship novels of the late eighteenth and early nineteenth centuries, specifically novels by Sarah Scott, Frances Burney, Maria Edgeworth, and Jane Austen. Instead of focusing on the heroines of these courtship novels, however, this project explores the marginalized female roles that orbit the courtship narrative: the chaperon, the mother-in-law, the governess, and the spinster. These four roles demonstrate the broad scope of female functions and services in the period while also calling into question the ideology that attempts to limit women only to the role of wife. The chaperon reveals the work …
Rna In Forensic Science: Novel Techniques For Biological Evidence, Stephanie T. Young
Rna In Forensic Science: Novel Techniques For Biological Evidence, Stephanie T. Young
Graduate Theses, Dissertations, and Problem Reports (ETD)
The techniques currently utilized for collecting biological evidence at the scenes of violent crimes such as murder, rape, and kidnapping are employed simply to preserve evidence for future DNA analysis. Although DNA is extremely useful in forensic casework, biological samples possess yet another valuable molecule, RNA. The use of RNA in forensic analysis of samples is currently on the rise. In the past, RNA was thought to degrade much too quickly to be of any benefit to the forensic community. The work presented in this dissertation seeks to demonstrate otherwise. While true that RNA is not as stable as DNA, …
Development Of High-Power Iii-Nitride Light-Emitting Diodes For Solid-State Lighting, Yi Yang
Development Of High-Power Iii-Nitride Light-Emitting Diodes For Solid-State Lighting, Yi Yang
Graduate Theses, Dissertations, and Problem Reports (ETD)
White light sources based on III-Nitride light-emitting diodes (LEDs) hold great promise for developing energy-efficient solid-state lighting (SSL) technologies. However, the optical output power of InGaN-based green and blue LEDs at high driving currents is limited by quantum efficiency (QE) droop and low light outcoupling efficiencies. The former is a phenomenon that LEDs suffer a decline in quantum efficiency as the driving current increases, and prominently occurs in LEDs with high In contents. Poor light outcoupling is a challenge facing LEDs of all colors. Due to a large contrast of refraction index between nitrides and air, the majority of photons …
Ferric Iron Nanoparticle Formation Mediated By Negatively Charged Polypeptides, Vamsi Krishna Aluru
Ferric Iron Nanoparticle Formation Mediated By Negatively Charged Polypeptides, Vamsi Krishna Aluru
Graduate Theses, Dissertations, and Problem Reports (ETD)
The creation of magnetite particles by magnetotactic bacteria has been of great interest for a number of years. Previous studies have shown that magnetite nanocrystals have been synthesized in the presence of recombinant Mms6 protein. Mms6 plays a vital role in the biomineralization of bacterial magnetite nanocrystals. The objective of this research is to determine the effect of functional group type on size and shape of magnetic nanoparticles formed by biomineralization. Control over the size of nanoparticles is paramount. Use of nanoparticles as contrast agents in MRI is advantageous, as they are small enough to be localized in desired region …
Cfd Applications In Airship Design, Kevin Shields
Cfd Applications In Airship Design, Kevin Shields
Graduate Theses, Dissertations, and Problem Reports (ETD)
This thesis examines the aerodynamic characteristics and flight dynamics of a lighter-than-air airship using analytical and computational fluid dynamics (CFD). Modern airships have frequently been proposed for military operations; one of which, designated YEZ-2A, was a prototype whose design was initiated during the 1980's. Designs were evaluated through the wind tunnel tests of a 1:75 scaled model performed by Gomes. His tests relied on surface roughening techniques to compensate for the inability to maintain Reynolds number similarity among scales.;Later, the scaled prototype would receive further attention during a CFD study at WVU. This study was undertaken to numerically simulate the …