Digital Commons Network^™

Arc, Lisa Fountain

Electronic Theses and Dissertations

My collection, Arc, is about the struggle to become a human being and to find one’s own identity. Also, it is about how humans fall apart and come together on a regular basis – that we must find forgiveness – we must learn to love in even the most difficult circumstances – and we must, above all, continue to grow, and challenge our personal limits. Life does not contain us –it welcomes us – and that is part of the message I seek to convey through my writing. The imagery in my writing is grounded in my memories of my …

Best Practices Used By Assistant Superintendents Of Curriculum And Instruction: Improving Teacher Instruction In A High Accountability Environment, Julie Madden

Electronic Theses and Dissertations

This qualitative multi-case study investigated not only the role of assistant superintendents of curriculum and instruction, but the strategies and best practices used by four assistant superintendents of curriculum and instruction and a deputy superintendent of teaching and learning from East Texas in order to improve classroom instruction and support teachers in the high-stakes testing environment. The study sheds light on the role of central office leaders, their views related to the high-stakes testing environment and the impact they have on instruction for teachers and students. The responses given in this qualitative case study were carefully analyzed in order to …

Monitoring Soft-Mast Production In Pine Woodland Restoration Areas On The Ouachita National Forest, Tamara B. Wood

Electronic Theses and Dissertations

The use of prescribed fire is integral to the restoration of open woodland habitats in the southeast, including shortleaf pine (Pinus echinata) woodlands in the Ouachita Mountains. Mature pine habitats maintained with recurrent disturbances have an open understory with a rich floristic diversity that provides quality habitat for many wildlife species, including the endemic and endangered red-cockaded woodpecker (Picoides borealis). Fire has many potential benefits for wildlife; however, the effects of fire on several important woody soft-mast producing species are not fully understood. Soft-mast quantity and quality is a key component in determining year-round habitat quality …

Structural Analysis Of The Northwest Wind Mountain Quadrangle, New Mexico: Proterozoic Shearing To Cenozoic Brittle Faulting In The Burro Mountains, Jensen Kohl Angelloz

Electronic Theses and Dissertations

Preliminary investigation of the Bullard Peak metamorphic series (BPMS) in the northwestern Wind Mountain quadrangle within the Burro Mountains of southwestern New Mexico suggests a possible previously unidentified shear zone, prompting detailed (1:12,000) geologic mapping and collection of structural data. The study area has a complex tectonic history, including 1) ~1.65 Ga metamorphism during accretion of the Mazatzal terrane to Laurentia’s southern margin; 2) ~1.4 Ga intrusion of Granite and Rhyolite Province granitoids; 3) significant uplift during the formation of the Ancestral Rockies (~300 Ma) and the Rocky Mountains (~70-50 Ma); and 4) inversion tectonics with reactivation of compressional faults …

"Comrades In Their Own Right": Women's Struggle Against Apartheid In The South African Novel, Ntfonjeni Dlamini

Electronic Theses and Dissertations

ABSTRACT

This thesis focuses on women’s struggle against apartheid in the South African novel. By means of textual analysis, the study explores the different ways in which apartheid oppressed women in South Africa and how women responded to the forces of oppression. In fact, at the core of this study is the contention that the anti-apartheid movement was shaped as much by women as it was by men like Nelson Mandela, Walter Sisulu, Steve Biko and Albert Luthuli, who often served as the faces of the anti-apartheid movement. Thus, this thesis situates itself within the scholarship that appreciates and recognizes …

Soil Morphological, Physical, And Chemical Parameters Affecting Longleaf Pine (Pinus Palustris) Site Quality And Ecosystem Restoration Potential In East Texas, Ryan Svehla, Kenneth W. Farrish

Electronic Theses and Dissertations

There has been a large decline in coverage of longleaf pine (Pinus palustris Mill.) within its range in the southeastern United States since the time of European settlement. Due to this decline, interest has developed in the re-establishment of this species on suitable sites. However, many attempts have been unsuccessful in re-establishment, likely in part due to the lack of emphasis on selection of suitable soils. Historically, longleaf pine was found on soils with a wide range of soil properties, including higher quality soils, due to frequent fires which kept many competing species suppressed. Decline in longleaf pine coverage …

Geology Of The Northern Alto Relex Area, Big Bend National Park, Brewster County, Texas, Robert Schoen

Electronic Theses and Dissertations

Detailed, 1:12,000-scale geologic field mapping was conducted around Alto Relex in the northern Sierra Del Carmen Mountains in Big Bend National Park. Alto Relex is a prominent, near vertical, ~1000 foot-high fault-line scarp. Cretaceous rocks in the area were folded and faulted by Laramide compression, intruded by Tertiary sills and overprinted by high-angle normal faults from Basin and Range extension. During the Laramide Orogeny and Basin and Range extension, the underlying basement shear zone called, the Texas Lineament, was reactivated creating a transpressional and transtensional regimes. The general geology of this area was outlined by Moustafa (1988) working primarily from …

Evaluation Of Genetic Diversity And Stability Of Colocasia Cultivars Using Issr, Seukmin Hong

Electronic Theses and Dissertations

Using 44 ornamental Colocasia cultivars planted at Stephen F. Austin State University (Nacogdoches, TX), cultivar assessment, genetic diversity, stability, and relationship were examined with banding patterns produced from Inter-simple sequence repeat (ISSR) markers. Comparing banding patterns of vegetatively propagated clones of each cultivar, genetic stability was examined. Unweighted pair group method with arithmetic mean (UPGMA) and principal coordinate analysis (PCO) were performed to examine genetic relationship that can explain a need for the new classification Colocasia gigantea and recent movement of re-classifying Colocasia antiquorum. Average Shannon’s diversity index for all loci was found to quantify genetic diversity. The genetic …

Treasure, Karen M. Perkins

Electronic Theses and Dissertations

Long after a brutal series of events resulted from her power exchange relationship, Treasure Montgomery’s recovery from post-traumatic stress disorder is hampered by relationships with family members and the legal difficulties of her foster daughter.

Consciousness In Clay, Sharon Robinson

Electronic Theses and Dissertations

ABSTRACT

Consciousness in Clay is an exhibition consisting of seven tall ceramic sculptures and nine smaller works. Clay is the ideal medium for these designs; the plasticity during the making phase yields to the stoniness of the finished work and traps the hand movement. As life is my metaphor, the ambiguous forms leave much to the imagination— to thoughts of the natural world, and to ideas about color, rhythm, and harmony. Strong lines, undulations, fecundity, dark openings, negative-spaces, the phallic-symbol, and budding new life may all come to mind; but nothing finitely specific emerges. Using my knowledge of biology and …

Parlance, Carolyn Mcintyre Norton

Electronic Theses and Dissertations

The richly-colored screenprints displayed in Parlance are explorations into sound-inspired imagery created through the blending of two divergent approaches: 1) drawing made by meditative inspiration and 2) printing driven by the execution of a predetermined plan.

Considered representationally, each print is a chorus of layered interpretive drawings of natural sound. My intent is to bring into view ethereal concepts through responsive mark making.

Considered technically, the printing process employs a predetermined set of formulas that produce a mathematically-finite set of prints. This systemized method causes common visual elements to disperse among the prints, resulting in a set of uniquely layered …

Nurse Perspectives On The Work Impacts Of Decentralized Nursing Unit Design, Susan Mcdevitt

Electronic Theses and Dissertations

This study investigated nurse perspectives on the work impacts of a decentralized inpatient unit model. The study involved two rural acute-care hospitals in rural Nebraska that moved from a centralized to a decentralized inpatient unit design. The researcher conducted focus group discussions with staff and nursing management at both facilities with a total of 28 participants. In addition, the participants completed a 12-item questionnaire using a five-point Likert scale for responding. Focus group discussion and questionnaire were designed to investigate the areas of quality of care, communication, documentation, stress and wellbeing, and transition. Data gathered revealed that on all survey …

Geophysical Delineation Of Megaporosity And Fluid Migration Pathways For Geohazard Characterization Within The Delaware Basin, Culberson County, Texas, Jonathan David Woodard

Electronic Theses and Dissertations

ABSTRACT

Differential dissolution of gypsum karst within the Delaware Basin poses a significant threat to infrastructure that society depends on. The study area is located in Culberson County, Texas and traverses a distance of approximately 54 kilometers along RM 652 within the Gypsum Plain which is situated on the northern margin of the Chihuahua Desert and includes outcrops of Castile and Rustler strata that host karst geohazards. Regions of karst geohazard potential have been physically surveyed proximal to the study area in evaporites throughout the Castile Formation outcrop; minimal hazards, in comparison to the Castile Formation, have been documented in …

Spatially Explicit Model Of Areas Between Suitable Black Bear Habitat In East Texas And Black Bear Populations In Louisiana, Arkansas, And Oklahoma, Caitlin M. Glymph, Christopher Comer, Daniel Scognamillo, Daniel Unger, Yanli Zhang

Electronic Theses and Dissertations

Although black bears (Ursus americanus, Ursus americanus luteolus) were once found throughout the south-central United States, unregulated harvest and habitat loss resulted in severe range retractions and by the beginning of the twentieth century populations in Oklahoma, Louisiana, Texas and Arkansas were nearing extirpation. In response to these losses, translocation programs were initiated in Arkansas (1958-1968 & 2000-2006) and Louisiana (1964-1967 & 2001-2009). These programs successfully restored bears to portions of Louisiana and Arkansas, and, as populations in Arkansas began dispersing, to Oklahoma. In contrast, east Texas remains unoccupied despite the existence of suitable habitat in the region.

To facilitate …

Estimating Wildlife Biodiversity Of Pine Plantation Edges Of Contrasting Rotational Stages: A Case Study, Joshua Perry Harris

Electronic Theses and Dissertations

ESTIMATING WILDLIFE BIODIVERSITY OF PINE PLANTATION EDGES OF CONTRASTING ROTATIONAL STAGES: A CASE STUDY

By: Joshua Harris, Dr. Daniel Scognamillo, Dr. Gary Kronrad, and Dr. Jeremy Stovall

Abstract

Wildlife biodiversity was estimated amongst three loblolly pine (Pinus taeda) intra-plantation edge types of contrasting rotational phases in a two-year case study. Three structurally varied rotational phases that occur throughout plantation rotations combine to make three different edges: A= pre-thinned - post-thinned, B= pre-thinned - pre-clearcut, and C= post-thinned - pre-clearcut. For two summer seasons (May-August 2015-2016), invertebrates, birds, medium mammals, and small mammals were sampled in each edge type. …

The Sequence Stratigraphic Context Of Mixed Basin Margin Evaporites In The Harrisburg Member Of The Permian Kaibab Formation, Northern Arizona And Southern Utah, Cole Hendrickson

Electronic Theses and Dissertations

The Kaibab Formation is a mixed carbonate system including evaporites and siliciclastics deposited on a westward dipping epeiric carbonate ramp during the middle Permian in northern Arizona, southern Utah, and eastern Nevada. It consists of the Fossil Mountain Member deposited in open-marine conditions and the overlying Harrisburg Member deposited in restricted conditions. The Harrisburg Member includes facies and depositional environments ranging from open-marine shallow-subtidal wackestone - packstone, restricted subtidal dolomitic mudstone, dolomitic sandstone, peritidal oolitic grainstone as well as gypsum and red siltstones deposited in a sabkha environment.

Fourteen stratigraphic sections were measured across northern Arizona and southern Utah to …

Evaluating Mine Soil Prepared By Scraper Pans For Herbaceous Plants And Pine Seedlings At An East Texas Lignite Surface Mine, Hannah Z. Angel

Electronic Theses and Dissertations

Since 1974, Luminant Mining Company, LLC (Luminant) has planted over 38.7 million trees on its reclaimed lignite surface mine operations in Texas. For decades, the use of improved reclamation techniques on Luminant’s mined lands have resulted in over 31,160 ha reclaimed to forests, wildlife habitat, and pastures with productivity levels similar to those found on unmined lands. The development of new reclamation methodologies offers opportunities to further improve productivity of planted trees at Luminant’s Martin Lake Oak Hill Mine in east Texas. The conventional haulback or ‘truck shovel’ reclamation method uses haul trucks for the selective transport and placement of …

Examining Variables Associated With Age Of First Concern And Diagnosis In Children With Autism Spectrum Disorder, Amy Mathews Creel

Electronic Theses and Dissertations

Abstract

Autism Spectrum Disorder is a disorder that is present during a child’s early developmental ages; affects that child’s ability to communicate and socially interact with others; and involves the presentation of restrictive interests and/or repetitive behaviors. Autism Spectrum Disorder (ASD) symptoms/behaviors are recognized by parents and can be reliably diagnosed at age two but often are not diagnosed until after age four. Delay in diagnosis results in loss of important intervention services that can improve the well-being of children with ASD. This study examined ethnicity, severity of symptoms, and type of symptoms and their effect on the age at …

The Moderating Effects Of Positive Religious/Spiritual Coping On Teachers’ Pain And Stress, Dawn Green

Electronic Theses and Dissertations

The objective of this internet-based survey was to investigate the effects of positive religious or spiritual coping strategies on teachers’ chronic pain reports. Teachers in the United States may represent a vulnerable group due to a high prevalence of risk factors for chronic pain conditions. Teachers have been identified to experience high stress (Johnson, et al., 2005; Kyriacou, 2001) and report poor job satisfaction (Wang, Hall, & Rahimi, 2015), which are associated with development of chronic pain conditions (Kopec & Sayre, 2004). Religious coping strategies have been associated with beneficial associations with stress and health (Reutter & Bigatti, 2014). The …

Pinching And Spacing Effects On Cut Sunflower (Helianthus Annuus) Production In East Texas, Rebecca B. Burnett

Electronic Theses and Dissertations

Three experiments evaluated pinching and spacing on Helianthus annuus in East Texas to determine their effects on growth and development. Experiment 1 was designed to determine the effects of pinching nodes 1, 2, 3, or 4 on ‘Pro Cut Gold’ sunflowers. Results from experiment 1 showed non-pinched plants produced marketable stem lengths and flower sizes, while pinched plants’ stem length, stem diameter, flower diameter, and disk diameter decreased compared to the non-pinched plants. The objective for experiment 2 was to evaluate pinching and spacing treatments on ‘Pro Cut Gold’ sunflowers. All spacings for non-pinched plants in experiment 2 produced marketable …

Mapping The Self: Reconciling Identity Through An Expansion Of The American Road Genre, Tinesha K. Mix

Electronic Theses and Dissertations

This thesis explores the American road genre. I argue that in addition to the automobile and the highway, a discussion of trains, boats, and walkers and their alternative roads must also be included in the genre. Each method of transportation expands the genre by adding new themes and ideas. Hobos and tramps can take to the road in search of community in order to discover more about themselves; some boatmen can use America’s racial history to discover themselves; walkers can go through a state of liminality in order to discover their internal selves. When these travelers complete their journeys, many …

An Examination Of The Relationship Between Ethnic Identity Development, Cognitive Complexity, Differentiation Of Self, And Reports Of Racial And Ethnic Microaggressions, Deshae C. Gatti

Electronic Theses and Dissertations

Although individuals may not engage in racism consciously due to social undesirability, they may have biases that manifest in more subtle and unconscious ways. Research has found that people of color experiencing different racial and ethnic microaggressions in their everyday lives are subject to pervasive and negative impacts on their mental health, though little is known about the influence of one’s ethnic identity formation, affective processes, and cognitive processes. A multiple regression analysis was conducted to examine the degree to which ethnic identity development, cognitive complexity, and differentiation of self were associated reported experiences of microaggressions. The analysis indicated that …

Military Lifestyle’S Impact On Children’S Adjustment, Ashley N. Doss

Electronic Theses and Dissertations

Military families are an understudied population and the majority of research that does exist focuses on the effects of deployments on the family system. This study aims to answer the following questions: 1) “to what degree does the relationship with parents (mother and father) and military lifestyle (number of transfers and number of deployments) predict the variance in military children’s self-esteem?”, 2) “To what degree does the relationship with parents (mother and father) and military lifestyle (number of transfers and number of deployments) predict the variance in military children’s social belongingness?”, and 3) “To what degree does the relationship with …

The Impact Of Student Abroad On Intercultural Competence As A Professional Disposition: Narrative Stories From Student Affairs Professionals, Dare Chronister

Electronic Theses and Dissertations

Student affairs professionals (SAP) have been tasked to educate students and provide opportunities to develop skills to live in a culturally diverse and global society. The shortage of culturally competent SAP could hinder students’ abilities to gain intercultural competence. The purpose of this narrative non-fiction study was to understand how SAP’ study abroad experiences helped them to grow and develop intercultural competence. Furthermore, the study aimed to identify how intercultural competence shaped their practices and strategies to provide students with safe environments to gain knowledge and understanding about different cultures. Data collection included three levels of semi-structured interviews. Identified themes …

Examination And Comparison Of The Performance Of Common Non-Parametric And Robust Regression Models, Gregory F. Malek

Electronic Theses and Dissertations

ABSTRACT

Examination and Comparison of the Performance of Common Non-Parametric and Robust Regression Models

By

Gregory Frank Malek

Stephen F. Austin State University, Masters in Statistics Program,

Nacogdoches, Texas, U.S.A.

g_m_2002@live.com

This work investigated common alternatives to the least-squares regression method in the presence of non-normally distributed errors. An initial literature review identified a variety of alternative methods, including Theil Regression, Wilcoxon Regression, Iteratively Re-Weighted Least Squares, Bounded-Influence Regression, and Bootstrapping methods. These methods were evaluated using a simple simulated example data set, as well as various real data sets, including math proficiency data, Belgian telephone call data, and faculty …

Effect Of Protease Supplementation In Broiler Feed On Growth Performance, Carcass Yield And Total Nitrogen Retention In Fecal Matter And Litter, Jawad Al-Juboori

Electronic Theses and Dissertations

ABSTRACT

The objectives of this study were to determine the effects of protease supplementation on commercial broiler performance, carcass yield, and nitrogen retention in fecal matter and litter. Total of 4,800 female (Ross 708) birds split into 96 floor pens, and randomly assigned to one of four treatment groups. Birds were placed within 96, 5’x10’ floor pens in a randomized-block design at the SFASU Poultry Research Center. Birds were randomly divided among the pens at a stocking density of 1.00 ft2/bird (50 birds/pen*24 pens/treatment=1200 birds/treatment), and reared for 49 days on used pine shavings. The target average weight for the …

The Efficacy Of An In-Vivo Chaining Procedure Compared To Pov-Vm Chaining Procedure To Teach A Task To Children With Autism, Elaine M. Turner

Electronic Theses and Dissertations

Autism Spectrum Disorder (ASD), is a neurodevelopmental disorder which includes symptoms such as repetitive or restricted patterns of behavior, and deficits in social communication (American Psychiatric Association, 2013) and affects approximately 1 in 68 children (Centers for Disease Control and Prevention, 2012). Children with this disorder face unique challenges when it comes to learning academic and social skills (Gardner & Wolfe, 2013). Chaining is an effective intervention for teaching individuals with disabilities a variety of skills (Cuvo, Leaf, & Borakove, 1978; Horner & Keilitz, 1975; Shrestha, Anderson, & Moore, 2013; Tarbox, Madrid, Aguilar, Jacobo, & Schiff, 2009). Video modeling, where …

Cultivar, Season Extension, Fertilizer Trials Of Swiss Chard And Pedagogy Of Assessing Cultivars Using Technology, Chanelle Angeny

Electronic Theses and Dissertations

Abstract. Diversity of species is a cornerstone of horticulture, and the constant stream of new plant cultivars broadens the palette of options available to the industry. Fifteen Swiss chard (Beta vulgaris var. cicla) cultivars were evaluated during the fall/winter of 2014-2015 season (season 1) and 27 cultivars during the fall/winter of 2015-2016 season (season 2) to determine the best performing cultivars for production and landscape use for east Texas and the southeast by assessing survivability and yield. There was an increase in production of 3.0 ± 0.5 g per plant per harvest under the low tunnel. The cultivar …

Uses Of The Hypergeometric Distribution For Determining Survival Or Complete Representation Of Subpopulations In Sequential Sampling, Brooke Busbee

Electronic Theses and Dissertations

This thesis will explore the hypergeometric probability distribution by looking at many different aspects of the distribution. These include, and are not limited to: history and origin, derivation and elementary applications, properties, relationships to other probability models, kindred hypergeometric distributions and elements of statistical inference associated with the hypergeometric distribution. Once the above are established, an investigation into and furthering of work done by Walton (1986) and Charlambides (2005) will be done. Here, we apply the hypergeometric distribution to sequential sampling in order to determine a surviving subcategory as well as study the problem of and complete representation of the …

Quality And Yield Responses Of Seven Warm Season Forage Grasses To Partial Shading In A Simulated Silvopasture In East Texas, Jodi E. Hill

Electronic Theses and Dissertations

The goal of this project was to evaluate growth and nutritional characteristics of seven forages, including various warm season native grasses, grown under simulated partial shading (50%) typical of a loblolly pine silvopastoral system in East Texas. In order to meet the overall objective, slatted shade structures were constructed that simulated the quantity, quality, and overall light regime found beneath loblolly pine stands arranged for silvopasture. The forages selected for the study included ‘Tifton 9’ bahiagrass (Paspalum notatum), ‘Tifton 85’ bermudagrass (Cynodon dactylon), ‘Alamo’ switchgrass (Panicum virgatum), ‘Kaw’ Big Bluestem (Andropogon gerardii), ‘Americus’ …