Digital Commons Network^™

Soil Amelioration And Plant Establishment On Sodium Affected Soils On Galveston Island, Texas, Elaine Harris

Electronic Theses and Dissertations

The storm surge from Hurricane Ike in 2008 inundated much of Galveston Island, Texas, causing lasting below-ground impacts in the form of elevated soil sodium (Na+) concentrations. The Na+ initially killed much of the vegetation on the Island and its persistence in soils and groundwater slowed revegetation with some species. Soil amelioration techniques aimed at reducing soil Na+ concentrations were evaluated on an area affected by the storm surge. The treatments were: constructed raised beds composed of uncontaminated soil, incorporation of organic mulch, gypsum application, and combinations of these treatments. Inputs of Na+ from sea-spray aerosols were also quantified using …

Evaluating Fluid Fluxes From Deep-Sea Seepage Habitats, Leigha E. Peterson

Electronic Theses and Dissertations

The permanently dark deep-sea, located at oceanic water depths greater than 200 m, represents the largest potential habitat space on Earth. The physicochemical conditions of the planet’s largest biome are tightly coupled to the exchange of matter and energy from terrestrial and sea-floor end-members. In fact, global ocean and climate systems are significantly impacted by deep-sea processes. Seafloor vents and seeps appear to act as geologic exchange conduits, returning recycled materials to the hydrosphere to sustain another generation of life. Despite submarine seepage having control on global elemental cycling, it is estimated that less than 1% of the deep-sea has …

Professional Ethics, Decision-Making, And Interdisciplinary Collaboration: An Exploration Of Teacher Preparation Programs And Practice, Brittany Mccreary

Electronic Theses and Dissertations

The first purpose of this research was to explore the prevalence, methods of instruction, and perceived value of professional ethics, ethical decision-making, and interdisciplinary collaboration in teacher preparation programs throughout the U.S. These factors were addressed using the Ethics Training and Curriculum Survey (ETCS). Participants for the ETCS included teacher educators (n = 977) from CAEP accredited preparation programs. Survey results suggest that professional ethics is widely addressed throughout CAEP accredited programs, but that instruction in ethical decision-making varies considerably. To connect these findings with practice, a second purpose of this study was to explore how educators make ethical …

Feasibility Study Of Intelligent Lvad Control For Optimal Heart Failure Therapy., John A. Karlen Iii

Electronic Theses and Dissertations

Background: Left ventricular assist devices (LVAD) are operated at constant speeds (rpm), consequently, pump flow is passively determined by the pressure difference between the LV and aorta. Since the diastolic pressure gradient (~70 mmHg) is much larger than the systolic gradient (~10 mmHg), the majority of pump flow occurs during systole. This limitation results in sub-optimal LV volume unloading, LV washing, and diminished vascular pulsatility that may be associated with increased risk for clinically-significant adverse events, including stroke, bleeding, arteriovenous malformations, and aortic insufficiency. To address these clinical adverse events, an intelligent control strategy using pump speed modulation was developed …

Simulation Of A Continuum Tumor Model Using Distributed Computing., Dylan A Goodin

Electronic Theses and Dissertations

Mathematical modeling aims to provide a theoretical framework for understanding tissue dynamics and for establishing treatment response for diseased tissues, such as tumors. Previously published continuum models have successfully represented idealized two-dimensional and three-dimensional tissue for short periods of time. A recently published continuum model of cancer increases model complexity and describes three-dimensional tissue that, due to the required complexity of the geometric multigrid solver, can only be feasibly applied to millimeter-scale simulations. Furthermore, the computational cost for such models has hindered their application in the laboratory and in the clinic. With computational demands greatly outpacing current openMP-based approaches on …

The Impact Of Unified Enrollment On School Choice For Parents Of Students With Disabilities: A Phenomenology Of Real Choice, Bridget Denise Harris

Electronic Theses and Dissertations

The purpose of this phenomenological study is to investigate the effects of a unified enrollment system on school choice for parents of students with disabilities in a charter-dominant school district. Previous research indicated that charter schools provide parents with enrollment choices outside of the traditional public school (Rhim & McLaughlin, 2000; Finn, Caldwell & Raub, 2006).

This study was conducted in an urban, southeastern district that transitioned from a traditional school district to a district of independent charter schools. Research questions examined the availability of resources for parents to identify and receive placement in schools that are appropriate for meeting …

Is Touchmath An Effective Intervention For Students With Autism?, April M. Huckaby

Electronic Theses and Dissertations

The TouchMath program was created in 1976 to help students struggling with basic mathematical computations (Bullock, 2005). Although the research has found TouchMath to be an effective intervention for students in the general and special education populations, only four studies have found the program to be effective for students with Autism Spectrum Disorder (Berry, 2009; Cihak & Foust, 2008; Fletcher, Boon, & Cihak, 2010; Yıkmış, 2016). The purpose of the study was to determine how the intervention can affect accuracy and fluency for students with ASD. The study focused on single-digit plus single-digit addition problems with three participants diagnosed with …

The Roles And Responsibilities Of Makerspace Educators, Kelli Duhaney

Electronic Theses and Dissertations

The maker movement is rapidly growing as schools look to address learning in the subjects of STEM subjects. This movement emerged from Papert’s 1980 theory of constructionism. Makerspaces are venues where students have the opportunity to create artifacts that demonstrate their learning about a subject. Students may also tinker and create new artifacts within a makerspace. Much research on the maker movement is anecdotal, focusing on the student experience in makerspaces. Little was known about the role of the educator in a makerspace. The purpose of this study was to examine the roles and responsibilities of educators while implementing makerspaces …

Teacher Personality And Student Engagement: A Case Study, Cole Sandlin

Electronic Theses and Dissertations

The problem that drove this study was the large number of students experiencing low levels of academic engagement. This level of engagement decreases as students progress from elementary to high school. The purpose of the qualitative study was to gain a deeper understanding of specific teacher personality traits and how teachers and students in the local setting perceived those traits impacting student engagement. This qualitative holistic case study was conducted through observations of high school teachers and semistructured interviews with high school teachers and students. The sample population included high school students and teachers in a local high school in …

The Gifted Transition: A Phenomenological Case Study Examination Of Preparation Strategies Utilized By General Education Inclusion Teachers, Jawan Brown Alexander

Electronic Theses and Dissertations

If the United States is going to remain globally relevant and competitive with other nations, educational leaders should consider investing in their brightest students. According to the National Association for Gifted Students (2018), education officials are not investing in gifted education at the same rate or to the same extent that they are financing other areas of special education. Public education policy provides special needs learners with required instructional support and accommodation through mandatory supplemental funding; however, gifted students on the other end of the special education spectrum, also requiring and benefiting from intervention and accommodation, do not receive the …

The Lived Experiences Of Black Males In Special Education: A Phenomenological Study Of Parents And Students, Ashonta Lashonda Wyatt

Electronic Theses and Dissertations

Black males rank highest among students who choose to leave school; are suspended, expelled, or kicked out of school; score poorly on tests; have low GPAs and high rates of referral and placement in special education; and are underrepresented in gifted education (e.g., NCES, 2005; Whiting, 2004) as cited in Whiting (2006a). The purpose of this study was to generate an understanding of the attitudes and beliefs related to special education referral and placement of Black males as perceived by six Black students and their parents. The focus of this phenomenological study was to examine the lived experiences of six …

Arachidin 3 Modulation Of Lipid Metabolism In Rotavirus Infections, Stormey Wisdom

Electronic Theses and Dissertations

Rotavirus (RV) can cause severe and deadly gastroenteritis in young children, infants, and immunocompromised individuals. Previous studies have shown that arachidin 3 (A3) inhibits RV replication, and that RV replication is dependent on the presence of lipids. This study investigated the alteration of lipid metabolism by A3 in RV infected HT29.f8 cells. A decrease in the RV regulation of lipid biosynthesis genes was observed with the addition of A3 using qRT-PCR. Also, immunofluorescent and histochemical staining for neutral fats, a major component of cellular lipid droplets, revealed an increased accumulation with both RV and RV+A3 when compared to no virus …

Charlie Wilson's First War: Challenging Carter's Human Rights Policy Through His Support For Anastasio Somoza Debayle, 1977-79., Sherman J. Sadler

Electronic Theses and Dissertations

The purpose of this thesis is to examine the support of Congressman Charles Wilson, D-TX, for the Nicaraguan government of Anastasio Somoza Debayle from March 1977 to July 1979. A narrative of Wilson's actions and motivations it relies heavily on his congressional papers for primary sources. This work argues that Wilson was motivated by his personal anti-Communist beliefs to challenge the perceived biased application of the Carter Administration's human rights policy against the Somoza regime. He saw the administration's abandonment of Nicaragua, a traditional Cold War ally after four decades of loyal support, as directly contributing to the rise of …

Use Of A Communication Tool To Improve The Perception Of Continuity Of Care, Annette Lotz

Electronic Theses and Dissertations

Inadequate or incorrect communication during transfer from skilled nursing facilities leads to misunderstandings about patient care needs, jeopardizes patients’ trust in the health care system, and leads to poor clinical outcomes. Due to gaps in communication from one health care setting to another, it was essential to determine if a patient-centered discharge tool would improve patients’ perception of continuity of care. The purpose of the study was to implement a patient-centered tool that would help improve the information needed at the time of discharge from a skilled nursing facility. Roy’s Adaptation Model supports the relevance of effective communication in the …

Developing Resilience Training For The Healthcare Employee In A Rural Medical Center, Sandra E. Gothard

Electronic Theses and Dissertations

In the clinical setting and in their personal lives, health professionals are confronted with many stressors that impact their time and the clarity of their role. Stressors are emotional, moral, or spiritual in nature as a result of exposure to suffering and death. There are often occupational stressors, such as reduced social support, excessive workload, or a prolonged misalignment among personal needs, individual values, and the work role. As a result of these challenges, health care employees need to create coping skills when stressors and demands become hindrances to personal well-being and their professional ability to care for others. Developing …

A Population-Based Study On The Correlates Of Trauma And Non-Suicidal Self-Injury Behaviors Among Adolescents Aging Out Of Foster Care., Jennifer Artis

Electronic Theses and Dissertations

Children in foster care are confirmed victims of maltreatment who may suffer from chronic trauma. These adverse childhood experiences will often increase the risk of physical and psychological adversities such as self-harm (SH), substance abuse, anxiety, post-traumatic stress disorder (PTSD), heart disease, depression, etc. Based on previous and current research studies, youth in foster care are less likely to receive adequate treatment for their self-harm behaviors and mental health needs. Failing to provide proper treatment could lead to harmful activities such as deliberate self-harm and potential suicide. This population-based study focuses on the prevalence of SH among youth in foster …

Postsecondary Students’ Perceptions Toward Accepting And Understanding Biological Evolution: A Qualitative Metasynthesis, Erin Childress

Electronic Theses and Dissertations

The purpose of this qualitative meta-synthesis is the exploration and analysis of postsecondary students’ perceptions towards accepting and understanding evolution. Evolution as a process and theory is a foundation for understanding the biological sciences. Within the scientific and educational communities, evolution is a central theme tying the fabric of the biological sciences together. A three-tiered analysis was used to determine postsecondary students’ perceptions towards accepting and understanding evolution. This meta-synthesis analysis was guided by the following research questions: (1) What perceived conflicts do post-secondary students face when learning about evolution? and (2) Based on post-secondary students’ perspectives, how do personal …

Mom's Money: A Dark Comedy, Buddy Ketelle

Electronic Theses and Dissertations

This thesis will recount the making of the feature film Mom’s Money which I produced, edited, wrote and directed. My influences on the story and visual style of the film will be discussed as well as my prior work and the way those combined forces drew me to make this film. Breaking this into the three stages of filmmaking- Production, Pre-Production and Post Production- I will explore the film from its conception to its completion. The collaborative nature of filmmaking and the way the particular collaborators I had on this film gave me an advantage (while still providing an occasional …

African-American Males In Rural East Texas That Transitioned From Coaching Into Educational Leadership: A Phenomenological Inquiry, Andre L. Emmons

Electronic Theses and Dissertations

The purpose of this transcendental phenomenological inquiry was to gain a more in depth insight into a unique phenomenon of five African- American administrators in rural public schools in East Texas that have made the transition from athletic coaching to educational leadership.Through the use of interviews, phenomenological inquiry allowed the inquirer to gain a more in depth personal account into a phenomenon, in hopes of discovering the true essence in which makes this shared, lived experience so unique. All participants in this inquiry were African-American male administrators and had at least four years’ experience as a coach before their transition …

Students With Disabilities In Higher Education And Implementation Of Section 504: A Historical-Comparative Analysis, Midge Simmons

Electronic Theses and Dissertations

Section 504 is a civil rights law that prohibits discrimination against individuals with disabilities by programs or activities receiving or benefiting from federal assistance (Rehabilitation Act, 1973). Specifically, Subpart E of the rules and regulations for Section 504 addresses postsecondary educational services and prohibits discrimination in the areas of recruitment and admissions, academic and athletic programs and activities, student evaluations, housing, financial aid, counseling, and career planning and placement.

Using a historical-comparative research method, the purpose of this study was to identify, analyze and compare cases of case law and Office of Civil Rights decisions since 1973 that have shaped …

Generation Of Full-Length Wild-Type Gata4 Protein And Characterization Of Its Binding To Unc-45 Domains, Morgan Anderson

Electronic Theses and Dissertations

Striated muscle UNC-45 (SM UNC-45) protein acts as a chaperone for cardiac and skeletal muscle myosins; regulating their folding, assembly into thick filaments, interaction with other sarcomeric proteins, and degradation. GATA4 is an important transcription factor that regulates the expression of several cardiac muscle proteins, including myosin. A previous study demonstrated for the first time that SM UNC-45 (also known as UNC-45B) physically interacted with GATA4. The major revelation from this study is that SM UNC-45 has the potential to exert both short-term (protein level) and long-term (gene level) controls over myosin and therefore muscle structure and function. The aim …

Electrical Brain Activity And The Examinee's Level Of Effort During Performance Validity Tasks, Roselia Juan

Electronic Theses and Dissertations

Many people who intend to obtain benefits from an assessment may resort to performing poorly on assessments. Previous literature has found that cognitive deficits and long-term symptomatic complaints are reported by individuals with mild Traumatic Brain Injuries. Limited studies have investigated how brain activity measured via Quantitative Electroencephalography (QEEG) relates to mental effort during cognitive tasks. The purpose of this study was to investigate electrical brain activity, as measured by Peak (PK) frequency, on frontal brain areas (i.e. locations F3-F4) in individuals giving poor mental effort. Measures of effort, in this study, include the Test of Memory Malingering, Rey 15-Item …

A Tale Of Two Dogs Fine Art Exhibit, Jeff Harris

Electronic Theses and Dissertations

The purpose of this paper is a formal examination of the fine art exhibit titled A Tale of Two Dogs by Jeffrey A. Harris as a partial fulfillment of requirements for a Master of Fine Arts degree from Stephen F. Austin State University.

By examining the multiple established points of view within his artwork, the author questions these establishments and asks if this approach leads to a relevant way of seeing. Using expanded polystyrene foam as a sculpture medium, a series of artworks created during the MFA research process are conceptually analyzed to explore the value of maintaining a multiplicity …

A Qualitative Study Of Teacher Perceptions Of Guided Reading As An Instructional Model For Fifth-Grade Students, Codi Freeman

Electronic Theses and Dissertations

The purpose of the multi-case qualitative study was to examine the perceptions of Grade 5 teachers after professional development using a guided reading training model. The study district, a suburban district in South Texas, serves over 600 Grade 5 students. Four Grade 5 teachers from four elementary schools in the same school district were selected to participate. The teachers were trained in the methodology of guided reading based on the protocols and research recommendations by Irene Fountas and Gay Su Pinnell. Prior to training in the methodology of guided reading, Grade 5 teachers were not required to teach guided reading. …

Ripple Effects: The Transformation Of Sfasu Women's Social Clubs To National Sororities, Lea Brannon Clark

Electronic Theses and Dissertations

Shortly after Stephen F. Austin Teachers College (SFA) opened in 1923, students began organizing social clubs. By the late 1920s, women formed the Amities and Pine Burrs to develop friendships and a sense of belonging. The Fideles and Sigma Gammas arrived on campus in the late 1940s as more women began attending SFA. Dr. Ralph W. Steen’s appointment as president brought significant changes to SFA and inadvertently to the social groups.

Responsible for adding more classrooms and dormitories, expanding course work and faculty, the new president also influenced the campus population by attempting to bring in students from metropolitan areas. …

Academic Consequences Of Legal Handgun Carrying On College Campuses, Hayden Holmes

Electronic Theses and Dissertations

Many states have discussed allowing concealed handguns on college campuses, known colloquially as campus carry. It is crucial to gauge whether allowing campus carry affects more than just crime rates. Previous research indicated overwhelmingly negative attitudes towards allowing campus carry. The purpose of the current study was to determine whether knowledge of someone carrying a concealed handgun in class would affect students’ ability to perform well on an exam. Across two studies, evidence and theoretical rationale suggested that knowledge of someone carrying a concealed handgun in class negatively impacted learning, although non-significantly. Individuals who were told that others (i.e., the …

Molecular Characterization Of The Putative Nucleotide- Binding And Hydrolyzing Activities Of The Ellis Van Creveld (Evc) Protein, Giang Nguyen

Electronic Theses and Dissertations

Ellis–van Creveld (EvC) syndrome is a rare autosomal recessive disorder that is characterized by short-limb dwarfism, extra fingers or toes, malformed teeth and nails, and congenital heart defects. Mutations in two genes, EVC and EVC2, which are located on chromosome 4, have been shown to be responsible for EvC syndrome. The protein products of these genes, EVC and EVC2 physically interact and together, they are tethered to the base of the primary cilium of cells. This multi-protein assembly positively regulates the Sonic and Indian hedgehog signaling pathways by promoting downstream processes after activation of the smoothened receptor (Smo), by the …

Evaluating The Effectiveness Of Supplemental Instruction On Generation Z Students In Agn 331, Shania Simons, Candis L. Carraway, Stephanie Jones, Frantisek Majs

Electronic Theses and Dissertations

The purpose of this research was to determine the effectiveness, barriers and benefits of Supplemental Instruction (SI) on Generation Z students in AGN 331. The theory used as a model for this research was the Pace’s Model of College Impress. Prior research indicated that SI improves test scores, final grades, and persistence in historically difficult courses. Correlations and ANOVA’s were performed on SAS in order to determine a relationship between the non-SI attendees to those who did attend SI. The final grade reported an average of 0.56 points higher and on the final exam 4.26 points higher if the student …

Adhd Malingering In A College Setting, Peerasin Chatchawarat

Electronic Theses and Dissertations

An increase in the number of adults seeking ADHD evaluations as college students in recent years raises concerns of malingered or exaggerated attentional impairments. Some students may falsely report ADHD symptoms in an attempt to obtain academic accommodations as well as prescriptions for stimulant medications. Meanwhile, little attention has been given to the development of either self-reported measures or performance-based tests that can ensure the validity of reported or exhibited attentional symptoms. In 2015, Multi-Health Systems Inc. (MHS) released an improved version of a continuous performance test, the Conners Continuous Performance 3rd Edition (Conners CPT 3), which may have improved …

The Relationship Between Substance Abuse, Intimate Partner Violence And Sexual Assault In College Students, Erin K. Deotte

Electronic Theses and Dissertations

Numerous studies demonstrate linkages between substance abuse, intimate partner violence (IPV), and/or sexual assault (e.g., Nabors, 2009; Rivera, Phillips, Warshaw, Lyon, Bland, & Kaewken, 2015; Santana, Raj, Decker, & Silverman, 2006). For ages, college students have been associated with substance abuse (e.g., Hingson, Zha, and Weitzman, 2009; O’Malley & Johnston, 2002). Substance abuse has been associated with IPV and sexual assault (Nabors, 2009; Rivera, Phillips, Warshaw, Lyon, Bland, & Kaewken, 2015; Santana, Raj, Decker, & Silverman, 2006). Although much research has been conducted on the relationships between substance abuse and intimate partner violence (including sexual violence), little research has been …