Digital Commons Network^™

The Effects Of 1:1 Technology On African American Students' Achievement In Algebra And English, Chad Bryan Wolf

Electronic Theses and Dissertations

Abstract

Many educational leaders have questioned whether the increased availability of technology in classrooms helps to increase student achievement and narrow the persistent achievement gap between African American and White students in the United States. School leaders have made large investments to provide every student with an Internet-capable mobile device. These 1:1 initiatives have grown in popularity in the U.S., and specifically in Texas. The research on 1:1 technology programs, however, has been mixed and sometimes contradictory. The purpose of this study was to determine if a 1:1 technology program increased student achievement for African American students and if it …

Glare Reduction By Dark Facial Markings And Bills In Birds, Clara Lebow

Electronic Theses and Dissertations

Avian facial plumage, bill coloration, and feather microstructure may serve one or more adaptive functions. Several researchers have proposed that dark eyestripes, bills, and facial masks aid in reducing glare, however, there have been relatively few tests of this hypothesis. Dark facial markings have been shown to have an adaptive glare-reduction function in recent field studies of a few species, but this hypothesis has never been tested in a broad multispecies analysis. It is likely that feather microstructure influences feather brightness and has an effect on the efficacy of glare reduction properties of feathers. I examined the link between dark …

Synthesis And Characterization Of Carbon Monoxide Producers Bipyridine Flavonolate Palladium(Ii) And Platinum(Ii) Complexes: Potential Anti-Cancer Agents, Sarah Whitfield

Electronic Theses and Dissertations

Novel designed metal ligand complexes as prodrugs are useful in the effort to find more effective and selective anti-cancer treatments. Carbon monoxide, CO, is known to induce mitochondrial collapse in cancer cells. Herein is described the synthesis of seven novel bipyridine flavonolate palladium(II) and platinum(II) complexes with the property of releasing carbon monoxide, and their characterization with FTIR, UV-Vis, fluorescence, NMR, and ESI mass spectra. Their ability to release carbon monoxide was investigated through oxygenation reaction under various conditions of temperature and light irradiation. The nitroxygenation reaction of the palladium complexes was also studied with nitrosyl hydride, HNO, generated in …

Characterization Of Surface Karst Using Lidar And Field Traverses, Fort Hood Military Installation, Coryell County, Texas, Heather Jaclyn Dailey

Electronic Theses and Dissertations

The Fort Hood Military Installation is a karst landscape that has been significantly altered for training exercises that include heavy vehicle maneuvers and simulated combat. Traditional karst surveys are often time-consuming and require extensive field analyses to adequately characterize large areas. Bias is given to areas that are most easily accessible and false negatives are common. Previous studies conducted in the eastern and western portion of the base have understated the abundance and spatial distribution of karst, particularly in the western portion.

This study used field traverses and 0.5-meter Light Detection and Ranging (LiDAR) data to characterize surface karst depressions, …

Effects Of Increased Atmospheric Carbon Dioxide Levels On Tobacco Mosaic Virus And Root-Knot Nematodes In Genetically Resistant And Susceptible Tomato Plants, Angie Nicholas

Electronic Theses and Dissertations

Rising atmospheric carbon dioxide (CO₂) may affect plant/pathogen interactions. This study focused on the effects of elevated CO₂ on Root-Knot Nematode (Meloidogyne arenaria) and Tobacco Mosaic Virus (TMV) infection in genetically resistant versus susceptible tomatoes (Solanum lycopersicum). Both resistant and susceptible tomatoes were grown in chambers with either ambient CO₂ or CO₂ elevated to 750 ppm and infected with M. arenaria or TMV. Measurements were taken at regular intervals to determine the effects of the pathogens on the plants. Resistant plants infected with M. arenaria maintained resistance while susceptible plants remained …

In Hindsight: Non-Visible Patch Points, Erik Ordaz Lozano

Electronic Theses and Dissertations

Exhibition consisting of seven ceramic vessels. I constructed these objects on the potter’s wheel by throwing and joining sections together based on a set of loose measurements and visual guidelines I have developed using slips and underglazes for mark making and soda firing for final surface treatment. This work is the result of my reflections on the concepts of form, shape, balance, time, and connection.

Rope: An Original Piece For String Orchestra Played Concurrently With Alfred Hitchcock's Film, Douglas William-Solomon Espie

Electronic Theses and Dissertations

This thesis presents an original piece of music designed to be performed concurrently with Alfred Hitchcock’s Rope (1948). The film provides a canvas upon which a musically dominant multimedia experience is built. An accompanying analysis explains the variety of compositional techniques used, explaining their significance and how each deviates from a traditional film score. The objective of this work is to challenge the existing relationship between music and film, and add to the growing body of repertoire of live works featuring synchronized video, modeling example methods of live multimedia performance. In this exploration, the goal was not to be anti-cinematic, …

Effects Of Pre-Workout Caffeine Supplementation On Post-Exercise Hypotension, Shelby L. Gibbs

Electronic Theses and Dissertations

Post-exercise hypotension (PEH) is believed to play a major role in the antihypertensive health benefits of exercise. While it has been shown that resistance exercise is effective at eliciting PEH, commonly consumed sports supplements may attenuate or completely eliminate that response. Caffeine, a popular stimulant, is often consumed prior to exercise. Therefore, the purpose of this study was to investigate the effects of pre-workout caffeine supplementation on the post-exercise hypotensive response in adults with above normal blood pressure. Participants (n = 5) were recreationally resistance trained men and women who consumed placebo or caffeine (3 mg/kg bodyweight) 45-minutes prior to …

Applications Of Digital Remote Sensing To Quantify Glacier Change In Glacier And Mount Rainier National Parks, Brianna Clark

Electronic Theses and Dissertations

Digital remote sensing and geographic information systems were employed in performing area and volume calculations on glacial landscapes. Characteristics of glaciers from two geographic regions, the Intermountain Region (between the Rocky Mountain and Cascade Ranges) and the Pacific Northwest, were estimated for the years 1985, 2000, and 2015. Glacier National Park was studied for the Intermountain Region whereas Mount Rainier National Park was representative of the glaciers in the Pacific Northwest. Within the thirty year period of the study, the glaciers in Glacier National Park decreased in area by 27.5 percent while those on Mount Rainier only decreased by 5.7 …

Using Saddlepoint Approximations And Likelihood-Based Methods To Conduct Statistical Inference For The Mean Of The Beta Distribution, Bryn Brakefield

Electronic Theses and Dissertations

The prevalence of conducting statistical inference for the mean of the beta distribution has been rising in various fields of academic research, such as in immunology that analyzes proportions of rare cell population subsets. For our purposes, we will address this statistical inference problem by using likelihood-based applications to hypothesis testing, along with a relatively new statistical method called saddlepoint approximations. Through simulation work, we will compare the performance of these statistical procedures and provide both the statistical and scientific communities with recommendations on best practices.

The Effect Of Radium Partitioning On Hydrothermal Fluid Flow Determination Across Guaymas Basin, Charlotte R. Kollman

Electronic Theses and Dissertations

Analysis of the distribution of radium through sedimentary porewater profiles is a promising method for constraining diffuse discharge/recharge flow rates in hydrothermal settings; these parameters are critical for evaluating hydrothermal circulation and its chemical and biological implications. The short-lived 224Ra (T1/2 = 3.54 days) is an effective tracer due to its behavior in marine environments and changes in activity due to ingrowth/decay. However, the distribution of radium may be influenced by its varying solid:aqueous partitioning coefficients (Kd) and is critical to understand for any study utilizing radium as a tracer. This project explores Kd across the hydrothermally active Guaymas Basin …

Community Involvement In Flood Mitigation: A Survey-Based Approach In Marion County, Sc, Lillian C. Howie

Electronic Theses and Dissertations

Marion County is located in northern South Carolina between the Great Pee Dee and Little Pee Dee Rivers. Because Marion County was the location of severe flooding during hurricanes Matthew (2016) and Florence (2018), the South Carolina Floodwater Commission identified Marion County as a location for drainage system improvement by the Infrastructure and Shoreline Armoring Task Force. In order to align plans for drainage system improvement with the needs of the local communities, commission chairman Thomas Mullikin requested a community survey to gauge the residents' personal experiences and views on what changes should be made to address the problem. The …

Investigating Dorsal Fin Hydrodynamic Function Of The Lemon Shark, Negaprion Brevirostris, Vivian Lynn Turner

Electronic Theses and Dissertations

Many sharks are considered highly efficient swimmers. Their swimming efficiency is partially governed by their morphological features such as dorsal fins, which play a role in their hydrodynamics. Most sharks feature two dorsal fins that can vary in size and location over the body. The first dorsal fin has been shown to improve stabilization, maneuverability, and increase thrust production during swimming, whilst the hydrodynamic role of the second dorsal fin is largely unknown. An understanding of the hydrodynamic function of the dorsal fins can be utilized in engineering applications, e.g., to replicate fins on underwater autonomous vehicles to increase energy …

Journey & Connections, Aldo Ornelas

Electronic Theses and Dissertations

Journey & Connections is a series of work comprised of ceramic sculptures that explore my personal experiences in relation to the human figure, immigration, and nature, as well as experiences influenced by my continuous travels between my country of origin and the United States.

This exhibition is composed of an Installation titled “A Line on the Wall” and a series of six sculptures that resemble monoliths, strong and expressive figures of spiritual origin that represent important figures in life, sources of wisdom and stelae that connect to the earth.

Temporal Transport Dynamics Of The Amazon River Plume Revealed Using Radium Isotope Analysis, Elana J. Ames

Electronic Theses and Dissertations

The Amazon River is the largest river by discharge in the world. It carries terrestrial nutrients into the Western Tropical North Atlantic via a buoyant freshwater plume, conveying water hundreds to thousands of kilometers away and driving critical biogeochemical cycles near the coast. Factors controlling the delivery of nutrients offshore by the plume are complicated and interconnected, yet these nutrients impact the foundation of phytoplankton community structures across the entire plume ecosystem. To better understand the temporal dynamics of this massive, highly influential region, we employ naturally occurring radium isotopes (223Ra, 224Ra, 226Ra, and 228Ra) to analyze mixing and transport …

Cover-Copy-Compare: A Literature Review, Juan Chen

Electronic Theses and Dissertations

Cover-copy-compare (CCC) is an evidence-based math intervention strategy that can be used to help to build math fact accuracy and fluency. This literature review aims to examine different modifications of CCC, the effectiveness of CCC in helping students with disabilities, and identifying targeted computational skills. Discussion will also focus on the generalizability of CCC. After using predetermined inclusion and exclusion criteria, thirty-nine articles were identified as relevant to this study. The results indicate that CCC demonstrated efficacy among students with Specific Learning Disability (SLD), Attention Deficit/Hyperactive Disorder, and emotional and behavioral disorders. There is no current evidence that CCC works …

Utilization Of A Concurrent Query Form To Improve Clinical Documentation In A Va Facility For Patients With Stroke Or Tia, Lisa A. Keefner

Electronic Theses and Dissertations

Caring for stroke patients diagnosed with acute ischemic stroke (AIS) and transient ischemic attack (TIA) at Veterans Health Administration (VHA) acute care hospitals is a very complex process that centers on accurate documentation. Inaccurate or missing documentation leads to patient safety issues, lower quality care, and inaccurate Veteran Equitable Resource Allocation (VERA) classification for reimbursement. This pilot project’s 3 problems of interest include improving provider response to clinical queries about documentation, capturing national metrics collected by the VHA, and accurately representing veterans in VERA classification. Based on a review of the literature available on patient treatment file (PTF) accuracy and …

Evaluation Of The Role Of Self-Efficacy As A Retention Strategy In The Implementation Of A Nurse Residency Program, Judith Diane Jackson

Electronic Theses and Dissertations

Newly licensed graduate nurses are transitioning to practice with low self-efficacy and competency gaps leading to poor patient outcomes and low retention rates within this population of nurses. These low rates of retention create an environment in which newly licensed graduate nurses have failed or are delayed in their transition from novice to expert. The purpose of this study was to evaluate the impact of the implementation of the Vizient/AACN nurse residency program on the first-year retention rate of newly licensed graduate nurses within an organization in central Texas. The program was evaluated utilizing newly licensed graduate nurse pre- and …

Exploring The Impact Of A Professional Identity On Teacher Retention: A Phenomenological Study, Elizabeth A. Cunningham

Electronic Theses and Dissertations

Although there is a great deal of research literature available on the causes for and the impact of teacher attrition and research on professionalism, there is little research to prove what connection, if any, exists between the two. The purpose of this qualitative, phenomenological study was to determine whether the development of a strong professional identity could positively impact teacher retention in a specific school. The research was conducted by first gathering baseline data from teachers who took 2 established surveys, the Job Satisfaction Survey (JSS) and the Professional Self-Identity Questionnaire (PSIQ). Focus group interviews with volunteer teachers followed. Survey …

Transition Practices For Students With High-Incidence Disabilities In A Rural School, Kristina M. Martin

Electronic Theses and Dissertations

Individuals with disabilities often have difficulty obtaining and maintaining employment after graduation from high school. Employment outcomes for individuals with disabilities are significantly less than their typical peers. One potential cause of lower employment outcomes for people with disabilities is the result of public schools’ failure to implement appropriate individualized transition plans and services. The purpose of this qualitative case study was to investigate the effectiveness of evidence-based transition practices as perceived by school educators, parents of students with high-incidence disabilities who receive special education services, and outside agency providers in a rural school in the North Central Texas area. …

Teachers' Perceptions Of The Role Of Teacher-Parent Partnerships That Best Benefit Students In A Parochial College Preparatory High School, Sarah H. Gates

Electronic Theses and Dissertations

Abstract

Current research on teacher–parent partnerships has increasingly focused on early childhood education. This transcendental phenomenological study expanded and extended the understanding of effective teacher–parent partnerships in secondary education at a parochial college preparatory high school. According to Bronfenbrenner’s bioecological systems theory (BST), academic growth and development in late adolescents are impacted by the overlapping systems of influence: the microsystem, mesosystem, exosystem, macrosystem, and chronosystem. The purpose of this qualitative study was to identify secondary educators’ perceptions of teacher–parent partnerships that best benefit students. Faculty at a parochial college preparatory high school were asked about their perceptions of parental involvement …

Experiences And Perceptions Of Rural Junior High Teachers Participating In A Professional Learning Community, Pamela Ann Mills Gambrel

Electronic Theses and Dissertations

In this qualitative descriptive case study, the researcher investigated how junior high school teachers’ perceptions of the role of how professional learning communities (PLCs) shaped their instructional practices in a rural Title I school in Texas. Exploring and understanding the experiences and perceptions of the teachers and administrators that participated in an English, language arts, and reading PLC provided valuable data that helped the administration determine professional development opportunities that could improve the instructional strategies of the teachers. By collaborating, analyzing student data, and sharing teaching strategies, the teachers were empowered to take ownership and improve their instructional practices. Examining …

Effect Of Creatinine Point-Of-Care Testing On Turnaround Time For Computed Tomography Exams With Intravenous Contrast, Shannon Haltom

Electronic Theses and Dissertations

Abstract

Emergency departments often have a stigma of long wait times. They face multiple challenges related to the flow of patient care due to the variety of factors that affect care and treatment. In order to support patient-centered care, the purpose of this project was to determine if point-of-care testing of creatinine decreases turnaround time for computed tomography exams with intravenous contrast in the emergency department. A mixed methodology of consecutive sampling and retrospective data collection was used. In all, 128 ratio data elements were reviewed, including a retrospective review of 64 charts from September 2018 and a consecutive sample …

Creating An Inclusive Climate For Students On The Autism Spectrum, Stephanie Christine Holmes

Electronic Theses and Dissertations

The problem that drove this study was the increasing number of students with autism entering the school system, and the barriers often encountered for both academic and social inclusion for students on the autism spectrum. Autism Spectrum Disorder, as defined by diagnostic criteria, includes deficits in social-relational communication; social-communication deficits can lead to educational impacts and limit opportunities upon transitioning from the public-school system. The purpose of this study was to examine the barriers to inclusion, which often includes the Individualized Education Plan (IEP) eligibility process itself, from the perspectives of key stakeholders to include Local Education Agency (LEA) representatives, …

Public School Administrators’ Perceptions Of Teacher Expectations And The Influence On Behavior Infractions And Academic Achievement Of Black Students In Mismatch Title I Classrooms, Kimberly D. Johnson

Electronic Theses and Dissertations

Black students make up the vast majority of the student population in at-risk schools identified as Title I. With large gaps in educational achievement, Black, at-risk students have lower federal and state test scores, higher course failure rates, and lower enrollment in classes such as Advanced Placement when compared to their White counterparts. With this in mind, teacher expectations play a vital role in the success of Title I, Black students. Public school administrators are also integral when it comes to leading the direction of instruction within these teacher-led classrooms. In this qualitative, interpretative phenomenological study, the researcher explored how …

A Qualitative Study: Forensics Coaches’ Perceptions Of Administrators’ Leadership Styles And The Impact Within Their Professional Learning Communities, Kenyatta D. Farmer

Electronic Theses and Dissertations

The purpose of this qualitative interpretive study was to explore class 5/A-6/A forensics coaches' perceptions of administrators' leadership styles and their impact on their professional learning communities in northeast Texas. This study was conducted through open-ended, semi-structured interviews to explore forensics coaches' perceptions of administrators' leadership styles and the impact within their professional learning communities. The problem that drove this study was that within schools where there may be only 1 or possibly 2 highly qualified teachers hired to teach non-core subjects, the opportunity for discourse regarding student learning, shared work-related problems, student achievement, challenges, and best practices are limited. …

The Effects Of Resistance Deception On Muscular Strength, Muscular Endurance, And Perceived Exertion, Broderick L. Dickerson

Electronic Theses and Dissertations

Resistance deception during training is a lightly researched topic and is seen as a modification that can potentially act on central control during exercise. Studies that have observed effects of deception while training have yielded mixed results. The effects of deception on strength, muscular endurance, and perceived exertion and the mechanisms of action that may elicit changes are still unclear. Therefore, the purpose of this study is to determine the effects of resistance deception on muscular strength, muscular endurance, and perceived exertion in a trained population. Eight participants finished the study and underwent four trials, one of which was a …

A Phenomenological Inquiry Into Vision Loss: Investigating The Lived Experiences Of Adventitiously Blinded Adults, Jennifer Perry

Electronic Theses and Dissertations

The purpose of this study was to share the lived experiences of four adventitiously blinded individuals. The researcher interviewed participants regarding the events surrounding their vision loss. The researcher used a descriptive phenomenological method to analyze the results.

Through analysis, seven themes emerged as essential experiences for experiencing adventitious vision loss: Medical Dysfunction, Others’ Reactions, Ancillary Losses, Rehabilitation, Sensory Enhancements, Benefits of Vision Loss, and Participants’ Advice.

The study indicated that participants’ experiences are influenced by how others in society understand blindness. Suggestions included providing a greater awareness to the public for blindness, its effects, and its available rehabilitation options.

Personality In Stomatopod Crustaceans, Jillian Page Blenderman

Electronic Theses and Dissertations

Stomatopods, or mantis shrimp, are small, predatory crustaceans of tropical and subtropical waters. Mantis shrimp research has focused largely on their agonistic interactions and complex visual systems. Despite their broad behavioral repertoire, stomatopods have not yet been investigated for consistent behavioral differences at the individual level, referred to as animal personality. Fifteen individual Neogonodactylus oerstedii were tested in three scenarios designed to measure potential differences in behaviors: 1) exploration of a novel environment, 2) response to and recovery from a startling event, and 3) response to a novel object. Each individual went through the series of tests twice, with a …

Working With Metal: The Stylistic Characteristics Of The Swedish Band Meshuggah And An Original Composition Inspired By Their Work, Adam J. Benefield

Electronic Theses and Dissertations

I have long been fascinated by music that is created through the amalgamation of more than one style of music. As a composer, this has led to me exploring paths that combine elements of contemporary, classical, jazz, world, film, and video game music. In this thesis I explore elements of progressive metal band Meshuggah. More specifically I examine their use of polymeter, polyrhythm, and other rhythmic devices used in six of their songs. I then demonstrate how I applied those same components to an original composition, Armageddon, scored for flute, Bb clarinet, C trumpet, trombone, percussion, piano, violin, viola, cello, …