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Determining The Physiological And Behavioral Responses To Elevated Salinity In The Freshwater Bivalves, Corbicula Fluminea And Lampsilis Ovata, John W. Roden Dec 2020

Determining The Physiological And Behavioral Responses To Elevated Salinity In The Freshwater Bivalves, Corbicula Fluminea And Lampsilis Ovata, John W. Roden

Electronic Theses and Dissertations

Salinization has been identified as an increasing threat to freshwater mussel diversity in recent years. Native mussels have been observed to display reduced salinity tolerance in comparison to some invasive bivalve species, but methods by which organismal tolerance is achieved are not well understood. This study was designed to compare the behavioral and physiological responses of the native Lampsilis ovata to that of the invasive Corbicula fluminea. Lampsilis were found to exhibit strong behavioral avoidance to salinity exposure, whereas Corbicula displayed very weak avoidance to comparable salinity concentrations followed by indications of osmotic conformation through physiological mechanisms. Prolonged valve …


Environmental Cybernetics: Technology And The Perception Of Remediated Space, Lucas Gentry Dec 2020

Environmental Cybernetics: Technology And The Perception Of Remediated Space, Lucas Gentry

Electronic Theses and Dissertations

Moby Dick, House of Leaves, and Ex Machina portray characters that rely on a form of technology to navigate their respective environments. As such, their settings are remediated spaces – spaces understood through their relationship with technology. The inhabitants of remediated spaces inherently resemble the cyborg as their perspectives fuse with machines in their understanding of space. Captain Ahab from Moby Dick must rely on his ivory leg and ship for mobility, often merging himself with the machine of the vessel. House of Leaves provides a space and family that exist exclusively within the confines of found footage, …


Past, Current, And Future Potential Distributions Of Red Spruce And Fraser Fir Forests In The Southern Appalachians: Interpreting Possible Impacts Of Climate Change, Danika Mosher Dec 2020

Past, Current, And Future Potential Distributions Of Red Spruce And Fraser Fir Forests In The Southern Appalachians: Interpreting Possible Impacts Of Climate Change, Danika Mosher

Electronic Theses and Dissertations

Spruce-Fir forests are relicts from the Pleistocene and can only be found within the Southern Appalachians. Analyzing the relationships between species distribution, climatic parameters, topography, and biotic interactions through ecological niche modeling creates prediction maps for conservation efforts. Maxent, Boosted Regression, and Random Forest were utilized to compare which model and variable combinations best approximate the unique mountain forest environment. Maxent with a bias file produced optimal results and was used to examine distributional changes that may occur in the future and how these changes compare to paleo-environmental distributions. Fraser fir has shown evidence of being influenced by changing climates …


The Resilience Of Female Survivors Of Intimate Partner Violence In Southwest Nigeria: An Interdisciplinary Analysis, Tobi F. Oloyede Dec 2020

The Resilience Of Female Survivors Of Intimate Partner Violence In Southwest Nigeria: An Interdisciplinary Analysis, Tobi F. Oloyede

Electronic Theses and Dissertations

Female survivors of intimate partner violence (IPV) in Nigeria endure harsh and traumatic experiences that affect their rights as women and their well-being. As the phenomenon of IPV persists in Nigeria, it is not only a family problem but a critical social and psychological problem. This study examined Nigerian female survivors’ hidden strength, agency, and resilience, rather than their powerlessness and vulnerability. Analysis of survey questionnaires, interviews, and secondary scholarship reveals that some Nigerian female survivors of IPV are able to cope whilst navigating stressful and traumatic experiences. The results also show that survivors’ ability to thrive and cope under …


The Lived Experience Of Obesity, Spirituality, And Health Behaviors In African American Women, Andrea S. Poynter Dec 2020

The Lived Experience Of Obesity, Spirituality, And Health Behaviors In African American Women, Andrea S. Poynter

Electronic Theses and Dissertations

Obesity is one of the fastest-growing health concerns impacting all racial, ethnic, gender, and socioeconomic groups in the United States of America. More than one-third of the U.S. adult population is classified as being obese (Obesity Society, 2014). Novak and Brownell (2012) identified that “obesity rates are consistently rising higher each year than in previous years” (p. 2345). Obesity has reached epidemic proportions in all races and genders within the US with African American women comprising a majority of those impacted by this chronic health condition. Obesity rates are well documented within the literature but what is lacking is the …


Prevention Of Chronic Inflammation By Targeting Macrophage Integrin Adb2, Cady Forgey Dec 2020

Prevention Of Chronic Inflammation By Targeting Macrophage Integrin Adb2, Cady Forgey

Electronic Theses and Dissertations

Macrophage integrin aDb2 promotes macrophage retention and accumulation within inflamed tissue, a key event in development of chronic inflammation. Recently, the P5 peptide was identified as a specific inhibitor for integrin aDb2 interaction with 2-(ω-carboxyethyl) pyrole (CEP), a ligand at inflammatory sites. This thesis aims to identify integrin aD I-domain amino acids involved in binding P5 peptide and likewise to CEP. We propose that non-conserved, basic amino acids of the integrin aDb2 I-domain are responsible for binding to P5 peptide and likewise to CEP. Eight amino acids were analyzed by …


Supporting Postnatal Women With Opioid Use Disorder Treated With Medication Avoidance Therapy, Lea Ann Quave Dec 2020

Supporting Postnatal Women With Opioid Use Disorder Treated With Medication Avoidance Therapy, Lea Ann Quave

Electronic Theses and Dissertations

Recent data in 28 U.S. states revealed that opioid use during pregnancy had increased by four times since 2014, going from 1.5 to 6.5 per 1,000 admissions. The use of opioids during pregnancy is dangerous to the mother and developing fetus, greatly increasing the risk for maternal death, miscarriage, and premature birth. The increase in the number of women with opioid abuse disorder (OUD) is reflected by a fivefold increase of infants born with neonatal abstinence syndrome (NAS), a withdrawal syndrome from opioids. Corresponding with U.S. trends, a community hospital in the Texas Gulf Coast region has seen an increase …


An Exercise Device Used To Achieve Bone Formation Metrics For The Strengthening Of The Proximal Femur., Sean P. Coyle Nov 2020

An Exercise Device Used To Achieve Bone Formation Metrics For The Strengthening Of The Proximal Femur., Sean P. Coyle

Electronic Theses and Dissertations

Lateral falls often lead to hip fracture particularly in the elderly who have low bone mineral density. These fractures frequently lead to indirect mortality soon after injury. Normal use over the course over a lifetime leads to optimized adaptation of the bone in the proximal femur according to normal loading. A lateral fall generates non-normal, lateral loading at the proximal hip where the bone has not adapted to withstand such loading. The resulting fracture is generated by reversed strains on the bone tissue in the femoral neck in the hip in contrast to vertical, quotidian loading. Modern practices for preventing …


Engaging Students In The Virtual Classroom: A Mixed-Methods Study Of Teacher Leaders Creating Connections Through Virtual Learning Communities, Michaine Suzanne Ashley Nov 2020

Engaging Students In The Virtual Classroom: A Mixed-Methods Study Of Teacher Leaders Creating Connections Through Virtual Learning Communities, Michaine Suzanne Ashley

Electronic Theses and Dissertations

The core problem that drove this study was high attrition rates and low student academic growth in virtual students when compared to their brick and mortar peers. To investigate this issue, the study focused on one issue related to the core problem: student engagement. The purpose of the study was to determine what pedagogical practices and instructional strategies were utilized by teachers in their virtual learning communities (VCLs) in order to engage students in the virtual classroom. This explanatory-sequential, mixed methods, single case study was conducted through the collection of archival data and through a teacher questionnaire and follow up …


Resilience Mediates The Relationship Between Socio-Cognitive Mindfulness And Perceived Stress In Academic Middle Managers In Higher Education, Rachel R. Slaymaker Nov 2020

Resilience Mediates The Relationship Between Socio-Cognitive Mindfulness And Perceived Stress In Academic Middle Managers In Higher Education, Rachel R. Slaymaker

Electronic Theses and Dissertations

Faculty, staff, and administrators in higher education have experienced rising stress levels due to an increasingly turbulent environment amid constant change and uncertainty. In particular, academic middle managers experience increasingly high demands and significant stressors in the ever-changing landscape of higher education. Most research that addresses stress among academic middle managers has focused on the management of stressors and emphasized the need for additional training and technical support rather than how to address adaptive challenges. However, emerging research has provided promising evidence of the positive effects of mindfulness in reducing the perception of stress and enhancing resilience, both of which …


Analyzing The Longevity Of Sperm Within The Female Japanese Quail By Assessing Sperm Penetration Of The Perivitelline Layer Under Optimal And Suboptimal Conditions., Garret G. Ashabranner, Joey L. Bray Aug 2020

Analyzing The Longevity Of Sperm Within The Female Japanese Quail By Assessing Sperm Penetration Of The Perivitelline Layer Under Optimal And Suboptimal Conditions., Garret G. Ashabranner, Joey L. Bray

Electronic Theses and Dissertations

After mating, birds have the ability to store semen within the female reproductive tract. The sperm storage tubules will store and subsequently release semen to travel up the oviduct. Sperm cells that make the trek up the oviduct have a chance to fertilize the ovum. These sperm cells will bind to the perivitelline layer of the ovum and hydrolyze a hole in the perivitelline layer, where it has the possibility to fertilize the female sex cell. Analyzing the number of penetration points on the perivitelline layer is an effective way to analyze reproductive efficiency. Many environmental factor has its effect …


Bacteria Analysis By Using A Supervised Machine Learning Algorithm Based On Droplet Microfluidics, Yulder Daniel Angarita Aug 2020

Bacteria Analysis By Using A Supervised Machine Learning Algorithm Based On Droplet Microfluidics, Yulder Daniel Angarita

Electronic Theses and Dissertations

Sepsis is a major medical problem and massive resources have been invested in developing and evaluating alternative treatments. Statistics indicate that sepsis causes between one third and one half of all hospital deaths in the United States. Sepsis has a high impact on health care in the US, with direct sepsis costs in 2009 exceeding $15.4 billion. A research study found that a 1-hour delay in appropriate antimicrobial care resulted in a 7% - 10% rise in mortality. Several professional societies seek to reduce sepsis mortality by targeting the timely use of diagnostic tests and antimicrobial therapy. The diagnostic instruments …


A Phenomenological Investigation Of African American Male Veterans’ Experience Of Social Connection, Brian Coleman Aug 2020

A Phenomenological Investigation Of African American Male Veterans’ Experience Of Social Connection, Brian Coleman

Electronic Theses and Dissertations

This research project examines the experience of African American male veterans’ social connections with other veterans. Social connection has been found to be a key factor in promoting positive health outcomes and overall well-being. In addition, social connection involves not only a sense of being connected to others but can also include feelings of exclusion. Given the increasing health disparities of between African American and White men, and of our nation’s veteran population, greater attention to factors that promote well-being are essential. The purpose of this qualitative study was to understand the lived experiences of social connection of African American …


Isolation, Structure Elucidation, And Synthesis Of Natural Products From Marine Cyanobacteria, Keren Solomon Aug 2020

Isolation, Structure Elucidation, And Synthesis Of Natural Products From Marine Cyanobacteria, Keren Solomon

Electronic Theses and Dissertations

This thesis describes the isolation, structure elucidation, and synthesis of natural products from marine cyanobacteria. A crude extract from a cyanobacterium collected in Curacao showed selective affinity for the dopamine D5 receptor in a screen against a panel of CNS receptors. Due to the high similarity of the D5 and D1 receptor, to date there are no known ligands that differentiate them. Attempts to purify the compound responsible for this affinity led to the isolation of the known compound caylobolide A. A second extract from a cyanobacterium collected in Panama underwent bioassay-guided fractionation and yielded the novel …


The Dialectic Of Naturgeist In Hegel’S Anthropology: Soul, World, And Bodiliness, Jiho Oh Aug 2020

The Dialectic Of Naturgeist In Hegel’S Anthropology: Soul, World, And Bodiliness, Jiho Oh

Electronic Theses and Dissertations

The primary concern of the “Anthropology” section in Hegel’s Encyclopedia of 1830 is the relationship between soul and body: how the soul gains an immediate, bodily existence through embodiment, why and how this immediate mode of the soul’s bodily existence is precarious, and how the soul becomes second nature by overcoming the immediate, bodily existence through habit, more precisely. Importantly, the “Anthropology” is the place in Hegel’s Encyclopedia system where the Philosophy of Nature ends, and the Philosophy of Spirit begins. The thematization of the soul-body relationship in the “Anthropology” is thus essentially framed by a broader, systematic problem concerning …


Differential Expression Of Rna In The Rat Peripheral Nervous System Following Nerve Injury And Treatment With Pain-Relieving Celecoxib-Loaded Nanomedicine, Andrea Stevens Aug 2020

Differential Expression Of Rna In The Rat Peripheral Nervous System Following Nerve Injury And Treatment With Pain-Relieving Celecoxib-Loaded Nanomedicine, Andrea Stevens

Electronic Theses and Dissertations

The neuroinflammatory response to peripheral nerve injury is associated with chronic pain and significant changes in the expression profiles of RNAs in neurons, glia and infiltrating immune cells: a neuro-immune triad. Chronic constriction injury (CCI) of the rat sciatic nerve provides an opportunity to mimic neuropathic injury and quantitatively assess behavior and differential gene expression in individual animals. Macrophages that phagocytose intravenously injected nanoemulsion carrying the non-steroidal anti-inflammatory, NSAID, Celecoxib, naturally accumulate at the site of injury resulting in relief of CCI behavioral hyper-sensitivity. It is not known beyond the inhibition of cyclooxygenase-2 (COX-2) activity and the reduction in prostaglandin …


Effects Of Hands-On Experiences On Student Achievement, Interest, And Attitude In Chemistry, Donna Gretchenn Adkins Aug 2020

Effects Of Hands-On Experiences On Student Achievement, Interest, And Attitude In Chemistry, Donna Gretchenn Adkins

Electronic Theses and Dissertations

This study examined the effect of hands-on experiences on student achievement, interest, and attitude in chemistry. The researcher gathered data from 82 students enrolled in an East Texas high school chemistry course for the 2019-2020 school year. Historical data from five-unit tests were used to assess differences in mean achievement scores between test items aligned with hands-on laboratory experiences and test items aligned with computer-simulated experiences. An independent t-test and a paired t-test were used to statistically evaluate the data. The independent t-test showed no statistically significant difference. However, the paired t-test did indicate a statistically significant difference. To assess …


Using Functional Communication Training To Reduce Self-Injurious Behavior For Individuals With Autism Spectrum Disorder, Maryam N. Alakhzami Aug 2020

Using Functional Communication Training To Reduce Self-Injurious Behavior For Individuals With Autism Spectrum Disorder, Maryam N. Alakhzami

Electronic Theses and Dissertations

The purpose of this study was to examine the effects of functional communication training (FCT) on self-injurious behavior (SIB) of children with autism spectrum disorder (ASD). FCT was utilized and demand fading procedures were added to the original method. The use of FCT to address SIB maintained by negative reinforcement exhibited by children with ASD is supported by an emerging trend of behavioral research. FCT replaces SIB with a new functional communicative response (FCR) that serves the same function as SIB. However, there is a lack of evidence on how to sustain treatment gains obtained after treatment is discontinued. Thus, …


Communication In The Ruins: Walker Percy And The Art Of Symbolic Mediation, Justin Bonanno Aug 2020

Communication In The Ruins: Walker Percy And The Art Of Symbolic Mediation, Justin Bonanno

Electronic Theses and Dissertations

This dissertation proposes to explore the mediating function of the symbol through the work of Walker Percy. In the first chapter, I provide the necessary background for undertaking this project. First, I situate Percy in his historical moment and review key events in his life that helped to shape his philosophy of communication. Second, I sketch out some of the primary coordinates in Percy’s thought. Percy’s hermeneutic of the self requires an understanding of the difference between sign and symbol, dyadic and triadic events, environment and world, and immanence and transcendence. Third, I review some of the key intersections with …


The Role Of Boredom, Loneliness, And Technology Use As Predictors Of Sexual Responsibility Among Individuals With Autism Spectrum Disorder, Natalie Drozda Aug 2020

The Role Of Boredom, Loneliness, And Technology Use As Predictors Of Sexual Responsibility Among Individuals With Autism Spectrum Disorder, Natalie Drozda

Electronic Theses and Dissertations

The purpose of this study was to investigate the predictors of sexual responsibilities (i.e., sex positivity and sexual health as well as sexual risk responsibility) for individuals with autism spectrum disorder. The predictors examined included boredom, loneliness, online risk behavior, intent to use dating apps/websites for casual sex, and intent to use dating apps/websites for romance. Gender differences in sexual responsibility subscales were also explored. ANOVAS yielded women with autism exhibited more sexual responsibility on both subscales than men. Multiple regression analyses were used to determine significant predictors of Sex Positivity and Sexual Health as well as Sexual Risk Responsibility …


Evaluating The Biological Effects And Safety Of Exposure To Low, Putatively Safe Concentrations Of The Common Pesticide Chlorpyrifos Using An Anuran Model, Sara Mcclelland Aug 2020

Evaluating The Biological Effects And Safety Of Exposure To Low, Putatively Safe Concentrations Of The Common Pesticide Chlorpyrifos Using An Anuran Model, Sara Mcclelland

Electronic Theses and Dissertations

In the US, over 1.1 billion pounds of pesticides are applied annually. Unfortunately, pesticides contaminate natural habitats affecting animal health. Chlorpyrifos (CPF) is an organophosphorous insecticide that contaminates surface waters. Few studies have assessed the impacts of CPF at low, ecologically realistic doses. I aimed to test the effects of low dose CPF exposures on biological parameters including body morphology, hormone levels, and brain development in Northern Leopard Frogs (Lithobates pipiens), a common vertebrate model. To determine if CPF exposure has direct impacts or indirectly impacts animals through the disruption of the food web, I examined CPF exposure …


Aphasia Friendly Medication Instructions: Effects On Comprehension In Persons With And Without Aphasia, Anna Saylor Aug 2020

Aphasia Friendly Medication Instructions: Effects On Comprehension In Persons With And Without Aphasia, Anna Saylor

Electronic Theses and Dissertations

Accessible health information supports people to understand and manage chronic medical conditions and is frequently presented via text. Comprehension of written health information becomes more difficult for people with language impairments, such as aphasia. Nine people with aphasia (PWA) and nine people without aphasia (PWoA), participated in this study. Each participant reviewed two unmodified medication instructions and two modified medication instructions using aphasia-friendly principles, then answered eight multiple choice questions and provided their preferences. Results showed that PWA demonstrated improved comprehension given modifications, but PWoA’s comprehension did not improve with modifications. Group comparison in the modified condition demonstrated that PWoA …


A Bioethical Paradigm For Enhanced, Post Or Transhumans In Medicine And Biological Research, Roderick Williams Aug 2020

A Bioethical Paradigm For Enhanced, Post Or Transhumans In Medicine And Biological Research, Roderick Williams

Electronic Theses and Dissertations

In this dissertation the question addressed is the ethical protocol that should be used when enhanced, post or transhumans present themselves as patients to hospitals, or as subjects for scientific research. With the advent of the birth of four children who were genetically engineered in China to be resistant to HIV, I contend that transhumans are already here, and the prevailing Western paradigm of principlism, while good, is not adequate to the task. I explore the basic religious argument that can be used against or in favor of what I call human-directed human evolution. I show how the fears of …


Without Words: Relational Neuropsychology And Creative Arts Therapies With People Managing Aphasia, Autumn Marie Chilcote Aug 2020

Without Words: Relational Neuropsychology And Creative Arts Therapies With People Managing Aphasia, Autumn Marie Chilcote

Electronic Theses and Dissertations

Aphasia describes the broad experience of disrupted language production or comprehension acquired after structural changes in the brain. These changes, usually associated with stroke, tumor, or cortical degeneration, are often co-occurring with other symptoms, such as emotional dysregulation, partial paralysis, and difficult social, occupational, and community relationships. Common approaches to research and rehabilitation with persons managing aphasia highlight conversation and semantic retrieval, with a lack in literature considering the diversity of symptoms and responses. Questions arise as to the ways that psychotherapies, typically language- centered, can be adapted to collaborative, low-verbal approaches that attend to the range of individual symptoms …


Use Of Multibeam And Split-Beam Sonar To Observe Changes In Fish School Biomass In Relation To Dolphin Abundance, Reece Eleanor Aponte Aug 2020

Use Of Multibeam And Split-Beam Sonar To Observe Changes In Fish School Biomass In Relation To Dolphin Abundance, Reece Eleanor Aponte

Electronic Theses and Dissertations

No abstract provided.


The Influence Of Environmental Variables On The Height Growth Of Loblolly Pine (Pinus Taeda) In The Western Gulf, Osakpamwan Edo-Iyasere Aug 2020

The Influence Of Environmental Variables On The Height Growth Of Loblolly Pine (Pinus Taeda) In The Western Gulf, Osakpamwan Edo-Iyasere

Electronic Theses and Dissertations

Understanding the effects of environmental factors on stand growth is important in optimizing forest management plans. This study investigated the effects of soil and climate factors on the height growth (site index) of loblolly pine (Pinus Taeda L.) using data collected from permanent plots established in intensively-managed plantations across East Texas and Western Louisiana. The Chapman-Richards model was selected as the base model to describe the height-age relationships and important soil and climate variables were incorporated into the models as model parameter coefficient adjustors. Our results showed that the most important factors for predicting site index were nitrogen …


Causal Comparative Study: The Effect Of School Scheduling And Academic Outcomes Of Economically Disadvantaged Students, Marcus D. Brannon Aug 2020

Causal Comparative Study: The Effect Of School Scheduling And Academic Outcomes Of Economically Disadvantaged Students, Marcus D. Brannon

Electronic Theses and Dissertations

This study was designed to investigate if a statistical variance exists between traditional and A/B block school scheduling, and the effect on economically disadvantaged student achievement on the English I and Algebra I End-of-Course STAAR state-mandated exam, from 2015-2018. In response to studies illuminating the achievement gap, educational leaders in Texas implemented block scheduling in order to improve student outcomes among high school students. However, to date, published research studies yield mixed results of the effectiveness block scheduling has made on student achievement. The findings are expected to help to fill the gap in published literature, which focuses on the …


Evaluation Of Groundwater Sodium And Sodium Uptake In Taxodium And Its Hybrids On Galveston Island, Texas, Daniel Morgan Aug 2020

Evaluation Of Groundwater Sodium And Sodium Uptake In Taxodium And Its Hybrids On Galveston Island, Texas, Daniel Morgan

Electronic Theses and Dissertations

In September 2008, Hurricane Ike swept through the Gulf of Mexico striking the Gulf Coast, claiming hundreds of lives and causing billions of dollars in damage. The hurricane left behind elevated sea salt concentrations in the soil and groundwater, preventing the unaided return of live oaks and other species to the island. To determine effective ways to ameliorate the elevated Na+ concentrations in the soil, eight treatments were applied to the soil and combinations of three species of plants, live oak (Quercus virginiana), hybrid bald cypress (Taxodium ‘T406’), and yellow hibiscus (Hibiscus hamabo …


Surface Levels, Keisha Brathwaite Aug 2020

Surface Levels, Keisha Brathwaite

Electronic Theses and Dissertations

Surface Levels are depictions of unobserved and imperceptible realities of many phytoplankton exteriors. The exhibition explores various structures, textures, and repetitious forms from microscopic surfaces of objects that cannot be seen with unaided eyes. Electron microscopy is used to perceive and analyze these otherwise unseeable surfaces in depth. Magnifications provide a reference in creating three- and two-dimensional works that are minimalistic and abstract at a visible level. This abstract 3D/2D image collection is translated into material expressions using acrylic sheets, acrylic ink, and wood as the main media for construction of individual works. Collectively, they serve to make the invisible …


Gender Differences At The Highest Levels Of Mathematics Achievement: A Texas Based Study, Susanna Campbell Aug 2020

Gender Differences At The Highest Levels Of Mathematics Achievement: A Texas Based Study, Susanna Campbell

Electronic Theses and Dissertations

The purpose of this ex post facto study was to determine if gender differences exist in the top quartile of mathematics achievement in Texas as measured by STAAR. Performance data for 6,358,500 Texas students on the mathematics STAAR in grades 3-6 for the years 2016-2019 were examined in this quantitative study. The percentage of male and female students scoring in three different score bands, the 75th-89th percentile, the 90th-95th percentile, and the 95th-100th percentile, were presented. The Chi-square was utilized to determine if any difference in the percentage of male and …