Digital Commons Network^™

Assessing Vocabulary Of Children: Investigating The Evaluation And Instruction Of Basic Concepts, Rebecca Elizabeth Smith

Graduate Theses and Dissertations

Vocabulary knowledge of preschool children is a key factor in predicting literacy success in elementary school (Hammer, Farkas, & Maczuga, 2010). However, few deliberate attempts to teach basic concept vocabulary have been studied (Bowers & Schwarz, 2013; Wilson, 2004). The purpose of this research is to determine if large group explicit instruction with interactive activities of specific basic concept vocabulary will increase preschool children's understanding of basic concept terms when measured by a standardized basic concept assessment. This research will also assess the validity of a basic concept-curriculum based measure (BC-CBM) as an efficient tool to monitor a child's understanding …

Novel Separation Methods Using Electrodialysis/Electrodeionization For Product Recovery And Power Generation, Alexander Miguel Lopez-Rosa

Graduate Theses and Dissertations

The use of electrodialytic separations for the purification of products has been a vital technique for the past 50 years in the chemical industry. Originally used for demineralization and desalination, electrodialysis and its counterparts have expanded to assist in product purification, waste and hazard removal, and power generation. This research focused on the development of high purity organic acids purification with low power requirements. Work resulted in the development of a new type of electrodialysis process, specifically the use of ionic liquids as a secondary solvent for the development of dual solvent electrodialysis. Through dual solvent electrodialysis, ions were recovered …

Perceptual Differences In Children Learning To Play Golf With Traditional Or Modified (Scaled) Equipment, Lindsey Dawn Sams

Graduate Theses and Dissertations

The purpose of the present study was to examine perception differences of competence and enjoyment between learners using modified and traditional equipment, and the potential effects these factors could have on intent for future participation. The participants in this study were 123 children (65 girls, 58 boys) aged 7 to 17 years. Through a convenience sampling method, data was obtained through surveys measuring golf participation and self-perceptions concerning perceived competence, enjoyment and intention to continue participation. To avoid an age confound, the dataset was limited to 2nd through 5th grade children (24 traditional/ 75 modified) for secondary analyses (MANOVA and …

Human Intelligence In Federal Terrorism Cases, Noah James Schneider

Graduate Theses and Dissertations

Though it has often been quipped that the September 11th attacks changed "everything", domestic policy alterations were among the most significant changes after 9/11. Specifically, the 2002 Ashcroft Attorney General Guidelines and the 2008 Mukasey Attorney General Guidelines were two of the most impactful policy changes following 9/11. These Attorney General Guidelines changed the way the Federal Bureau of Investigation (FBI) investigated terrorism in the United States in addition to making counterterrorism the FBI's top priority. One of the ways the FBI prevents terrorism is through the use of undercover agents and confidential informants. How the 2002 and 2008 Attorney …

A Phenomenological Study Of National Distinguished Elementary And Middle School Principals From The Class Of 2010, Michael John Dawson

Graduate Theses and Dissertations

The purpose of this qualitative study was to examine the leadership experiences and perspectives of five National Distinguished Elementary Principals (NDPs) from the Class of 2010 serving in the Midwest region of the United States. Specifically, the study investigated the application and selection process of recognition as an NDP, their views of school leadership, and their perception of best professional practices. Using a phenomenological approach, the researcher used semistructured phone interviews and analyzed National Distinguished Principal application essays. The required essays focused on balancing leadership and management, promoting parent involvement, supporting and challenging learners, and advancing a positive culture. The …

Logarithmic Spiral Arm Pitch Angle Of Spiral Galaxies: Measurement And Relationship To Galactic Structure And Nuclear Supermassive Black Hole Mass, Benjamin Lee Davis

Graduate Theses and Dissertations

In this dissertation, I explore the geometric structure of spiral galaxies and how the visible structure can provide information about the central mass of a galaxy, the density of its galactic disk, and the hidden mass of the supermassive black hole in its nucleus. In order to quantitatively measure the logarithmic spiral pitch angle (a measurement of tightness of the winding) of galactic spiral arms, I led an effort in our research group (the Arkansas Galaxy Evolution Survey) to modify existing two-dimensional fast Fourier transform software to increase its efficacy and accuracy. Using this software, I was able to lead …

Understanding The Evolution Of Aggregative Multicellularity: A Molecular Phylogenetic Study Of The Cellular Slime Mold Genera Sorodiplophrys And Pocheina, Alexander Tice

Graduate Theses and Dissertations

Cellular slime molds are amoeboid protists that have a unicellular trophic phase and multicellular dispersal stage formed through the aggregation of individuals in their life cycles. These organisms were once thought to form a monophyletic group in the Mycetozoa. After careful morphological, ultrastructural, and molecular studies, cellular slime molds are now thought to be distantly related organisms that have all converged on the cellular slime mold habit. The following thesis consists of two molecular phylogenetic studies on two named genera of cellular slime mold for which little or no molecular data were publically available. In the first study, gene sequence …

An Investigation Of Perceptions Of Program Quality Support Of Adult Basic Education Programs In Arkansas, Gary William Udouj

Graduate Theses and Dissertations

This study was designed to identify the degree to which the directors of adult basic education programs in Arkansas perceive they have program quality support, as evidenced by a well-defined mission and role in the community, a management system, human resources management, and a suitable learning environment. To collect data for this study, NSCALL's Evidence-based program self-assessment (2006) was modified and administered electronically. Thirty-nine administrators of adult education programs funded by state and federal grants under the Arkansas Department of Career Education were invited to participate. The survey consisted of 40 questions scored on a 5-point Likert type scale, four …

Stratigraphic Analysis With Respect To Aggregate Potential In The Duffield Quarry In Gum Log, Arkansas, Brock Evan Langford

Graduate Theses and Dissertations

The crushed stone mining industry is valued at nearly one billion dollars in Arkansas alone. Physical properties of the rock dictate whether or not an area may be suited for the establishment of an aggregate quarry. The Gum Log quarry located 10 miles northeast of Russellville, Arkansas is geographically well situated near areas in need of aggregate material, as well as physically competent rock. The rock mined in Gum Log is located in the Upper Atoka Formation, a Middle Pennsylvanian aged member of the Arkoma Basin. There are five different lithologic facies identifiable in the quarry (Facies 1-5 respectively): A …

Physiological And Nutritional Characterization Of High Yield Soybean, Ryan John Van Roekel

Graduate Theses and Dissertations

Soybean [Glycine max (L.) Merr.] grain yields greater than three times the national average have been reported in yield contests. Characterization of soybean in a maximum yield environment is necessary to provide empirical data to support those yield claims and to provide an understanding of the physiological processes at that yield level. From 2011 to 2013, research characterized biomass and N accumulation rates, radiation use efficiency (RUE), leaf N dynamics, the rate of harvest index increase (dry matter allocation coefficient, DMAC), seedfill period (SFP), and grain yield components from Mr. Kip Cullers' contest fields and in small plots at the …

Analysis Of Paleokarst Sinkholes In The Arkoma Basin Using 3-D Seismic, Michael Kumbalek

Graduate Theses and Dissertations

Paleokarst features are important to understand, both with regards to research geologists and to the petroleum industry. In terms of geology, understanding paleokarst features can yield more information about the depositional and surface environments of past times, and how diagenetic alteration affected the environment during the formation of karst features. In the petroleum industry, paleokarst features can have positive or negative consequence resulting in a potential reservoir with enhanced porosity due to the paleokarst features, or as a geo-hazard to prepare for or avoid when drilling.

Inspired by issues faced when drilling in the Ft. Worth basin, this study utilizes …

Leadership Behaviors Used By Principals Of Large High Schools Compared To Principals Of Small High Schools: A Comparative Multiple-Case Study, Kimberly Lynn Baker Garrett

Graduate Theses and Dissertations

The purpose of this multi-case study was to examine if there may be a perceived relationship between the size of the school and the leadership behaviors of the four principals. This purpose was achieved through a qualitative inquiry of principal interviews, principal survey, observation of a principals' leadership team meeting, focus group interview with the principals' leadership team, and analysis of the extant texts: principals' time log for one week, organizational chart, and agenda for a leadership team meeting. The data were reduced through two cycles of coding which then further analyzed resulting in the identification of five major themes. …

An Exploratory Study Of Spending Patterns, Obstacles And Traditions Among Same-Sex Marriage Vs Heterosexual Marriage: Who's The Bigger Spender?, Lydia Perritt

Graduate Theses and Dissertations

This study investigated if there was a significant difference in the amount of money spent on same-sex weddings versus heterosexual weddings. The results of this study would assist both the wedding and hospitality industry by providing much needed financial and planning information.

A descriptive, four-section survey was distributed online via Qualtrics utilizing snowball sampling. A total of 152 respondents participated in the study; 84 heterosexual and 68 LGBTQ. The respondents completed the questionnaire that measured wedding traditions, wedding spending, obstacles and challenges faced during their wedding and wedding planning, and demographic information.

The results of this study indicated that same-sex …

Methane Emissions From Direct-Seeded, Delayed-Flood Rice Grown On A Clay Soil, Alden Daniel Smartt

Graduate Theses and Dissertations

Due to the production of methane (CH4) under flooded-soil conditions, rice (Oryza sativa L.) cultivation is a major contributor to agricultural CH4 emissions. Studies examining CH4 emissions from rice have only recently been initiated in Arkansas and no data have been collected from rice produced on clay soils in Arkansas. Therefore, research was conducted in 2012 and 2013 at the Northeast Research and Extension Center in Keiser, Arkansas to examine the factors affecting CH4 emissions from rice produced on a Sharkey clay (very-fine, smectitic, thermic Chromic Epiaquerts). The objectives of this study were to determine: 1) the effect of vegetation …

Using The Triple Bottom Line To Select Sustainable Suppliers For A Major Oil And Gas Company, Pandarinath Adarsh Sunkari

Graduate Theses and Dissertations

Companies have primarily been focusing on the financial bottom line i.e., on increasing profits by increasing revenues and reducing costs. With high energy usage and environmental change posing threats to the environment and business operations, companies are now considering sustainability. Since some global suppliers have low cost labor, Social well-being and human development has also emerged as major goals of a company performing global operations. Focusing on these three goals is termed the "Triple Bottom Line" (TBL). We study and explore the TBL benefits that could be realized by an oil and gas company by focusing on sustainable suppliers. A …

A Descriptive Study Of The Use Of Neurofeedback In Counseling, Khwlah Jamil Al-Ansari

Graduate Theses and Dissertations

This study examines neuro-counseling in the mental health field and the concept of neurofeedback training (NFB) as an intervention in the counseling profession. Numbers of studies have indicated that NFB may be effective in the field of counseling. The purpose of this survey study is to explore the use of neurofeedback in the field of counseling.

Additionally, the study used a quantitative descriptive survey research method and descriptive statistics. The survey was sent to members of the American Counseling Association (ACA), and 93 professionals participated. The majority of the sample was licensed professional counselors, professionals with a degree in counseling, …

Interpretation At The Controller's Edge: The Role Of Graphical User Interfaces In Virtual Archaeology, Tyler Duane Johnson

Graduate Theses and Dissertations

The important role of graphical user interfaces (GUIs) as a medium of interaction with technology is well established in the world of media design, but has not received significant attention in the field of virtual archaeology. GUIs provide interactive capabilities and contextual information for 3D content such as structure-from-motion (SFM) models, and can represent the difference between "raw data" and thoughtful, skilled scholarly publications. This project explores the implications of a GUI created with the game engine Unity 3D (Unity) for a series of SFM models recorded at a structure known as the Area B House at the ancient central …

Consumer Perceptions Of Apparel Fit Satisfaction And Sizing Based Upon 3d Body Scanning And Block Garment Assessment, Nicole Lee Coury

Graduate Theses and Dissertations

The objectives of this study were to first, determine whether Walmart, Inc. customers are purchasing the correct size garments for their body measurements, and their perceptions of the fit of Walmart, Inc. clothing prior to trying on the current block garments. The next objective was to determine which factors influence fit satisfaction after the participants have tried on the current block garments. Hypothesis 1 tested participants' perceived size and their actual size, Hypothesis 2 tested participants' pre and post try-on fit satisfaction perceptions, and Hypothesis 3, 4, and 5 tested which factors have a significant effect on garment fit satisfaction. …

A Pump Monitoring Approach To Irrigation Pumping Plant Performance Testing, William Merritt Mcdougall

Graduate Theses and Dissertations

Traditionally, irrigation pumping plants have been tested using an instantaneous appraoch, which tests performance parameters over a very short time interval. Using this method, the tester measures the necessary work and energy use parameters to calculate the desired pumping plant performance values. The primary limitation of this approach is its inability to determine the season long efficiency of an irrigation pumping plant.

A new approach to evaluating irrigation pumping plant performance is the use of pump monitoring systems which use high frequency, real-time data collection and telemetry to relay information directly from the pump to the user. This method of …

Defining Primary And Academic Discourse Through Instructional Methods In A Single Junior High Classroom, Ashley Nicole Gerhardson

Graduate Theses and Dissertations

In this study, I examine the use of academic discourse in the school setting and discuss the relation of the primary discourse to academic discourse. I focus on the verbal exchanges between a teacher and her students as these students acquire the academic discourse of the English classroom. The study focuses on the ideas of primary discourse and secondary or academic discourse as presented by Gee (1996) and focuses on his idea of Social languages.

Using a microethnographic study, I develop the idea of how the teacher related to her students and how a single educator felt about the purpose …

Phenotypic And Functional Genomics Analyses Of Salmonella For Food Safety Applications, Turki Dawoud

Graduate Theses and Dissertations

Non-typhoidal Salmonella species have been major foodborne zoonotic pathogens causing serious problems in public health and food industry for several decades. Numerous Salmonella species have frequently been associated with different food commodities mainly poultry meat, eggs, and their products. This dissertation begins with a literature reviews discussing many aspects of Salmonella generally; and subsequently focused on two serotypes, Salmonella Enteritidis and S. Typhimurium as they are at the top of all other serovars responsible for most illness cases and outbreaks. In addition, some Salmonella strains have exhibited their ability to tolerate and survive many food processing treatments. We can divide …

Effects Of Landscape Disturbances On Autotrophic Processes Within Arkansas Ozark Streams, Bradley J. Austin

Graduate Theses and Dissertations

Land-use change is one of the most widespread human impacts and can influence abiotic and biotic processes within surrounding streams. For example, streams in agricultural and urban watersheds receive greater light and nutrient inputs that can promote increased algal growth and primary production. Natural gas (NG) infrastructure development, a recent land use change in many regions, may also stimulate forested stream primary production, by reducing forest cover and increasing sediments and nutrient transport. I sampled streams across a NG activity gradient for algal biomass and gross primary production (GPP) to assess potential effects of this emerging land-use type. Algal biomass …

An Investigation Of 3d Seismic Deep Basement Events In Osage County, Oklahoma, Kevin Matthew Liner

Graduate Theses and Dissertations

Deep basement events seen in 3D seismic surveys located in Osage County, Oklahoma can be observed and may have affect overlying sedimentary formations. The 3D surveys used in this study are on the Chautauqua platform about fifty miles northwest of Tulsa, Oklahoma. Stratigraphy of the work area spans base of the Permian to Precambrian formations, with basement depth averaging around 5000 ft in the area of the 3D seismic surveys. Cores spanning Precambrian to Pennsylvanian were examined in the area of the 3D seismic surveys. Hydrothermal minerals were observed in Mississippian age cores. The basement events where tracked using OpendTect …

Living As Bathsheba Doran's Helena In "Kin", Stephanie Nicole Bignault

Graduate Theses and Dissertations

This thesis is an exploration and reflection of my growth and development as an actor after three years of studies at the University of Arkansas. It includes a statement of artistry, a copy of the program from my thesis performance, a link to my actor website, a current headshot and resume, and my group thesis project script, Tender Comrades.

Fragmenting Kill/Shot, Rachel Washington

Graduate Theses and Dissertations

In "Fragmenting Kill/Shot", I will explore how my play Kill/Shot changed over the course of the rehearsal and production process. I will explain and defend stylistic choices I made for this play, including how the others on the production team interpreted those stylistic choices. Finally, I will explore how changes to the script can help protect the play from being misinterpreted in the future.

The Paleoepidemiology Of Malaria In The Ancient Near East, Nicole Elizabeth Smith

Graduate Theses and Dissertations

The end of the Late Bronze Age in the Near East (1300 - 1200 BCE) saw the widespread collapse of several large cultural centers, the reasons for which are a subject of continued debate. Evidence from events leading up to this cultural collapse suggest epidemic disease may have factored into the eventual downfall of these early civilizations. Recent DNA analysis from Egyptian mummies who lived during the period leading up to the Late Bronze Age collapse identified malaria in several elite individuals, suggesting the widespread prevalence of this infectious disease in Egypt. However, the exact prevalence, antiquity, and dynamics of …

Inducing And Characterizing M2c Macrophages At A Non-Degradable Implant In Vivo, Geoffrey David Keeler

Graduate Theses and Dissertations

The implantation of biomaterials in the body leads to a reaction known as the foreign body response (FBR) which leads to the eventual encapsulation of the biomaterial. This encapsulation proves to be detrimental to certain biomaterials, such as implanted glucose sensors, which rely on interacting with the extracellular space for proper function. Altering the FBR has become of interest in an effort to increase the longevity and integration of biomaterials. One strategy for altering the FBR is by targeting the macrophage, shown to play an important role in the FBR. In this work, the microdialysis sampling technique was used to …

A Comparison Of Infant And Toddler Reactions To Strangers Who Have Similar Attributes To An Established Attachment Figure Vs. Strangers Who Have Different Attributes, Jessica Hamilton

Graduate Theses and Dissertations

A child's early attachment experiences can have a lasting impact on later development. Early attachment relationships often result in greater Social and cognitive skills, as well as better school performance (Peisner et al., 1999). For these reasons, it is important to address those components that may contribute to secure attachments with care givers in the child care setting. The current study looked at the reactions of infants and toddlers when presented with two previously unknown individuals: one who physically resembled an established caregiver with whom they had already established attachment and one who looked different from this caregiver. The study …

The Status Of Small Group Training As Perceived By Program Administrators, Jade Alexis Dworkin

Graduate Theses and Dissertations

This descriptive study was obtain program components and administrative perceptions of collegiate recreation small group training programs. Through an extensive review of literature and valued input from key campus recreation professionals, a preliminary survey with 30 items was created. The preliminary survey, Administrative Effectiveness of Small Group Training Programs Survey (AESGTPS), was administered electronically to collegiate recreation small group training program directors. Research questions investigated were identifying ways in which various program components may vary from institution to institution, identifying program components that were perceived to be contributing to perceived program effectiveness, and defining ways in which program administrators perceived …

The Mission Of A Theatre Artist, Laura Shatkus

Graduate Theses and Dissertations

This thesis consists of materials documenting my thesis performance as well as a statement of artistry, a copy of my current headshot, and resume and a link to my website.