Digital Commons Network^™

Mathematical Knowledge For Teaching In Co-Teachers At The Post-Secondary Level: A Cognitive And Enacted Approach, Lida Marie Lavelle Bentz

Dissertations

Mathematical Knowledge for Teaching (MKT), the knowledge used by a teacher to teach mathematics, has often been examined as a cognitive construct in K-6 teachers, but little research exists examining MKT in the post-secondary teaching context. Schoenfeld (2020) extended the definition of knowledge and thus MKT to include tacit and explicit perceptions. In doing so, Schoenfeld created the terms "big K" mKt and "little k" mkt, where mKt refers to the tacit and explicit perceptions used by a teacher to teach mathematics and mkt includes the teacher's understanding used in teaching mathematics (similar to cognitive MKT). Building from Schoenfeld’s conceptualization …

Examining The Effectiveness Of Virtual Instruction For Medication Administration Skill Acquisition In Prelicensure Nursing Students, Jenna E. Davis

Dissertations

To better meet student needs, nurse educators must explore alternatives to traditional educational approaches that will accommodate student needs while still providing essential instruction and feedback for students. Virtual skills instruction is one flexible option for practicing the clinical skill of medication administration, but the effectiveness in developing skill acquisition is not known. The influence of students' self-efficacy as well as personal and professional factors such as healthcare experience and nursing program type are also unknown.

The purpose of this study was to describe the medication skill acquisition of prelicensure nursing students who participated in virtual medication skill instruction at …

Project-Based Learning In Introductory Psychology: Modern Adaptations To An Academic Classic, Colton R. Olson

Dissertations

This study used a quasi-experimental design to examine the effectiveness of a project-based learning (PjBL) course design on meaningful learning, student goal orientation, engagement, and perceived classroom motivational climate in an introductory psychology course. Project-based learning was examined in comparison to a traditional, lecture and multiple-choice exam course design in introductory psychology over the course of one semester (N = 247). Generally, there is limited research examining PjBL in large introductory classes, specifically in relation to concrete outcomes such as meaningful learning and perceived classroom climate (Gurung et al., 2016). Therefore, the purpose of the study was to add to …

Stealth Dyslexia: Cognitive And Achievement Profiles Of Gifted Students With Dyslexia, Anne Hardy Boris

Dissertations

Identifying students who are gifted with dyslexia (GWD) has presented a host of challenges to practitioners in school and clinic settings because these individuals possess both qualities of giftedness and learning difficulties, yet do not ‘fit’ in either category. The term “stealth dyslexia” was coined to indicate the presence of high abilities that may mask dyslexia traits, complicate diagnostic accuracy, and allow individuals to compensate for their weaknesses. The masking of reading difficulties can cause dyslexia to remain undetected in gifted children for a prolonged period of time which may leave them prone to academic disengagement. The present study provided …

Coastal Geomorphic Response To Sea-Level Rise, Storms, And Antecedent Geology: Examples From The Northern Gulf Of Mexico, Clayton Dike

Dissertations

Sea-level rise and tropical cyclone activity are threatening coastlines around the world. Past geologic coastal responses can be used to inform future scenarios. This three-part study examines the response of coastal systems to sea-level rise, storms, sediment supply, and antecedent geology over the past ~ 140 ka.

The first study is of the Bay St. Louis, Mississippi, coastal system along the northern Gulf of Mexico incorporating sediment supply, subsidence, and antecedent topography paired with an examination of geologic response to sea-level fall and rise. I used core and geophysical data that resolve incised valleys and other subsurface deposits from ~ …

Application Of Deep Learning For Medical Sciences And Epidemiology Data Analysis And Diagnostic Modeling, Somenath Chakraborty

Dissertations

Machine Learning and Artificial Intelligence have made significant progress concurrent with new advancements in hardware and software technologies. Deep learning methods heavily utilize parallel computing and Graphical Processing Units(GPU). It is already used in many applications ranging from image classification, object detection, segmentation, cyber security problems and others. Deep Learning is emerging as a viable choice in dealing with today’s real-time medical problems. We need new methods and technologies in the field of Medical Science and Epidemiology for detecting and diagnosing emerging threats from new viruses such as COVID-19. The use of Artificial Intelligence in these domains is becoming more …

Designing Dynamic And Degradable Polymeric Materials With Thiol-X Chemistries, Reese Sloan

Dissertations

With plastic production poised to increase in coming years, there arises a need to develop new polymeric materials designed to combat the global pollution crisis. A commonly utilized approach in addressing this challenge is to employ a responsive functional moiety into the polymer architecture. Thiol-X reactions, a commonly utilized class of “click” reactions, have garnered broad implementation in new stimuli-responsive materials. This work specifically focuses on utilizing radical-mediated thiol-ene coupling and base-catalyzed thiol-isocyanate reactions to develop a library of ternary thiol-ene/thiourethane covalent adaptable networks (CANs) and hydrolytically labile poly(thioether ketal) thermoplastics. CANs are a class of network materials capable of …

Predicting The Nclex-Rn Pass Rate At An Associate Degree Nursing Program, Dawne Devoe Olbrych

Dissertations

The National Council Licensure Examination for Registered Nurses (NCLEX-RN) firsttime pass rate for an associate degree in nursing (ADN) program was below the national mean, presenting a problem for graduates who failed the NCLEX-RN and could not enter the workforce as registered nurses. Knowles's assumptions of adult learning, Ebbinghaus's forgetting curve, and Zull's neuroscience research served as the theoretical frameworks for this study. The purpose of this study was to identify which academic and time-lapse variables predict the graduate's first-time passage for the NCLEX-RN. Archived academic records and NCLEX-RN results for all 786 graduates from one ADN program who took …

Remote Learning - The Future Of Education: Effective Instructional Strategies Used By Parent Educators And Recommendations For Building Capacity, Raelene Ferguson Haugen

Dissertations

Purpose: The purpose of this mixed methods Delphi study was to identify the remote learning instructional strategies used by expert Southern California parent educators for implementing the anticipatory set, modeling, checking for understanding, and guided practice elements of Madeline Cheek Hunter’s Instructional Theory Into Practice (ITIP) framework. The study sought to identify how expert Southern California parent educators rated the effectiveness of the remote learning instructional strategies in the aforementioned elements of Hunter’s ITIP framework. Additionally, the purpose was to generate recommendations from expert Southern California parent educators to build capacity in the identified effective instructional strategies.

Methodology: The classical …

Bee Brains: Dissecting Pollinator Behavior And The Importance Of Plasticity In The Face Of Changing Environments, Rachel Brant

Dissertations

All organisms face environmental variability, and much of contemporary biological research aims to understand the mechanisms allowing organisms to adapt and survive in the face of change. Animals residing in urban habitats face particularly high levels of unpredictability and environmental fluctuation due to changes based upon human desire. Though urban areas are considered relatively novel habitats, numerous species have adapted to city life, mediated through behavioral and physiological plasticity. Native bee species show particularly high species richness and abundance in urban settings, but the mechanisms driving this pattern are poorly understood. In this dissertation, I explore how bees employ plasticity …

The Impact Of Music Education On Middle School Students’ Attendance Rates And Academic Achievement On Math And English Language Arts, Irene Wang Shi

Dissertations

In recent years, students’ standardized test scores have become one of the major measurements for students’ learning. However, music as a non-tested subject is often viewed as a lesser valued subject compared to core subjects. The purpose of this study was to investigate the impact music programs have on student academic achievement and attendance rate. The data was collected from one middle school of a large school district located in the northeast of Missouri. The study population includes sixth, seventh, and eighth-grade students who enrolled in the 2017-2018, 2018-2019, and 2020-2021 school years. The population was divided into students who …

Mechanism Of Sila- And Germafluorenes For Biological Applications, Shelby Jarrett

Dissertations

2,7-disubstituted silafluorenes and germafluorenes, originally designed for OLED applications, are a class of fluorescent dyes that have gained recent interest as probes for bioimaging and as biosensors to monitor cellular dynamics and interactions. Desirable biological probes absorb in the visible region, have high extinction coefficients, high quantum yield and excellent photostability. Here, their spectral properties are investigated under aqueous conditions for relevant biological applications. These molecules display intense blue fluorescence in the solid state and in solution, have high extinction coefficients, and exhibit appreciable solubility in aqueous solution. To better understand potential applications, the mechanism of fluorescence was investigated. It …

Use Of Early Specialty Hesi Exams As Predictors Of Hesi Exit Examination Performance In Baccalaureate Degree Nursing Program, Cathy E. Hansen

Dissertations

This study explored standardized testing outcomes used early in a baccalaureate nursing (BSN) education program in traditional and second-degree students in order to identify predictors of outcome on the program exit examination (HESI E²). Defining early predictors of student outcomes may more accurately identify student need for early intervention, offer timely remediation, optimize success, and minimize attrition in nursing education programs. The purpose of this correlational quantitative study was to determine if a relationship exists between student outcomes on four HESI specialty exams (fundamentals, health assessment, pathophysiology, and pharmacology) and the performance outcomes on the HESI E^{2 …}

Exploring Educational Issues: International Nursing Students Enrolled In Professional Nursing Programs In South Texas And Their Perceptions Of Educational Barriers, Wanda R. Sparks

Dissertations

This qualitative study explores educational challenges as manifested in the experiences of the English language learner (ELL) nursing students enrolled in a professional nursing program in San Antonio, Texas. Eleven participants were interviewed for this study using 7 open-ended questions. The research methodology applied in this study was interpretive, guided by phenomenology with the lived experiences of the ELL nursing students being the focus of the analysis.

Discourse analysis and thematic analysis revealed the following themes: (a) student study habits, (b) student distress, (c) student support system, and (d) student learning tasks. Each theme is discussed in depth and supported …

Learning Transfer Evidence In Baccalaureate Senior Nursing Students Using A Disaster Emergency Preparedness Tabletop Exercise, Cathleen A. Evans

Dissertations

Little is known about learning transfer in senior baccalaureate nursing students, therefore, the primary purpose of this research was to describe senior nursing students' learning transfer evidence for basic disaster and medical-surgical nursing concepts during a tabletop exercise, an academic strategy used in disaster preparedness education. A second purpose was to document participants' attitudes regarding the tabletop exercise. The organizing framework for this descriptive quantitative research was Perkins and Salomon's Learning Transfer. Learning transfer is content, context, and time bound from the original learning circumstance.

The research questions were 1. What is the relationship between Disaster Knowledge and Tabletop-Matrix scores …

Channeling Influence On Noise And Aerodynamic Performance Of Naca 0012 Airfoil As A Possible Solution Of Wind Turbines Noise, Hussein Khudhayer Mohammad

Dissertations

This work numerically and experimentally investigates the effect of using channels inside airfoils on the noise level as a possible resolution for aerodynamic noise generated by wind turbines. The work also investigates aerodynamic performance and turbulence around the employed airfoils. The results reveal that some of the samples show some improvement in reducing the aerodynamic noise. The reduction of the aerodynamic noise is explained as the trailing edge blowing injection that reduces the wake momentum deficit of the blade and reduces the pressure fluctuation which is responsible for noise production. Particularly, the angles of channel inclination with respect to the …

Three Essays In The Economics Of Education, Md Ohiul Islam

Dissertations

This dissertation explores three distinct topics in the economics of education. These topics explore the relationship between factors such as race, gender, national origin, and educational and labor market outcomes. Educational attainment in the STEM (Science, Technology, Engineering, and Mathematics) areas receives a major focus in this dissertation; a college-level specialization in STEM areas generally leads to high incomeyielding career tracks. Below I briefly explain the research objectives and findings of each chapter.

The first chapter focuses on the impact of teacher-student demographic mismatch on student success in classrooms at the high school level. When students, particularly those of disadvantaged …

Analysis Of The Zebrafish Olfactory System Using Immunohistochemistry And Enhanced Techniques Of Desorption Electrospray Ionization Mass Spectrometry (Desi-Ms), Tara Lynn Maser

Dissertations

Desorption electrospray ionization (DESI-MS) is an ambient ionization technique where the sample is analyzed directly from a surface with very minimal sample preparation under ambient conditions and follows ESI-like ionization mechanisms. DESI-MS has proven powerful in analyzing or imaging lipids and other small molecules directly from biological samples and even allows for subsequent histological staining and analyses. However, DESI-MS is less widely used for protein analysis due to a lack of sensitivity and the complex diversity of proteins in biological samples.

A major goal of this research has been to obtain new neurobiological knowledge by combining histology and mass spectrometry …

Examining Indonesian Preservice Science Teachers’ Teaching Orientations And Pedagogical Reasoning, Listiani

Dissertations

In science teaching and learning, Pedagogical Content Knowledge (PCK) is an overarching term for teacher knowledge, including a teacher’s science teaching orientation, knowledge of instructional strategies, knowledge of student understanding of science concepts, knowledge of curriculum, and knowledge of assessment. Teaching orientation is an aspect of PCK and an area for investigation, especially concerning preservice science teachers who are just learning to be effective. Teaching orientation is a critical aspect of PCK in that it pulls together all other aspects and is associated with a teacher’s decision-making involving reasoning. Teacher training institutions play a crucial role in developing teachers’ pedagogical …

Factors In Graduate Student Resilience And Intention To Persist During Doctoral Study, Amber Mosley

Dissertations

Attrition is a major problem for the doctoral education system and in particular for underrepresented groups. Research has proposed several reasons for students dropping out that include both personal and programmatic variables. A review of the literature identified several factors that overlap in the research on attrition, resilience, and intention to persist however, there have also been varied results across studies and very few studies focused specifically on doctoral students. Doctoral education can be considered in three phases of the education process, each with its own stresses and challenges. Factors and variables that could be the most helpful for universities …

Synthesis And Characterization Of Nanojars And Their Anion Binding Ability, Wisam Abdulabbas Flayyih Al Isawi

Dissertations

Inorganic anions are an important class of inherently negatively charged species. Anions such as sulfate (SO42–) and phosphates (H2PO4–, HPO42–) are ubiquitous in nature and biological systems, whereas chromate (CrO42–) and arsenates (H2AsO4–, HAsO42–) are environmental pollutants. Because of the high interest in the sequestration of anions from aqueous media, different methods have been explored to bind anions. Among these, the use of noncovalent interactions to encapsulate anions by organic and metal-organic host molecules is particularly attractive, because the reversibility of binding allows for the easy recovery of the extracted anion and the recycling of the anion extracting agent.

Nanojars …

Teacher Evaluation In Saudi Arabia Relative To National And International Teacher Evaluation Standards And Best Practices, Suhayb Kattan

Dissertations

Teacher evaluation systems are essential in tracking the quality and effectiveness of teachers and education systems. This dissertation examines the teacher evaluation system in Saudi Arabia through multiple perspectives, including research-based frameworks for teacher evaluation, norms and best practices from OECD countries, and established Saudi Teaching Standards. An explanatory sequential mixed methods model was used. Data collection involved 643 responses to a teacher survey that covered working conditions, existence of professional learning communities, and teacher evaluation practices, methods, and uses. Following the survey, in-depth interviews were conducted with 11 teachers and 3 key informants.

Findings from this study indicate the …

Mixture Of Functional Graphical Models, Qihai Liu

Dissertations

With the development of data collection technologies that use powerful monitoring devices and computational tools, many scientific fields are now obtaining more detailed and more complicatedly structured data, e.g., functional data. This leads to increasing challenges of extracting information from the large complex data. Making use of these data to gain insight into complex phenomena requires characterizing the relationships among a large number of functional variables. Functional data analysis (FDA) is a rapidly developing area of statistics for data which can be naturally viewed as a smooth curve or function. It is a method that changes the frame of data …

Mid To Late Neogene (5.9-3.7 Ma) Epeirogenic Uplift And Associated Ultramafic Volcanism, Canterbury Basin, New Zealand, Katherine Anne Dvorak

Dissertations

Cored marine sediments from Canterbury Basin Integrated Ocean Drilling Program (IODP) Expedition 317 shelf sites U1351, U1353, and upper slope Site U1352 have been resampled with emphasis on benthic foraminifera from the Late Eocene to Late Pliocene. These new data coupled with paleo water-depth and age data from the nearby Clipper-1 petroleum exploration well, are used to develop a 1-dimensional basin subsidence model for the Canterbury Basin. Our model indicates there was widespread epeirogenic uplift of 890  350m, in the mid-Neogene (5.9-3.7 million years ago), which took place during concomitant ultramafic volcanism. Close association of uplift and volcanism could …

The Experiences Of Undergraduate Saudi Students In The Stem Trajectory: A Closer Look At Major Choice And Persistence Intentions, Manal Almalki

Dissertations

STEM fields (Science, Technology, Engineering, and Mathematics) are a key source of economic progress in many countries. As the Kingdom of Saudi Arabia works toward an innovative and knowledgeable economy, more qualified national professionals in STEM are needed. Nevertheless, the problem of STEM attrition is still insufficiently explored in Saudi Arabia, which may indicate a gap between skills of the Saudi workforce and the country’s need for economic development. Therefore, this study attempts to provide more information about the STEM trajectory in Saudi Arabia, underline possible attrition points that require more attention, deliver a better understanding of the factors that …

Centering Culture And Relationships In Learning: Culturally Responsive Teaching In Higher Education, Valerie Vistain

Dissertations

In colleges and universities all across the United States, the amount of culturally and linguistically diverse students has increased significantly. Research has shown that when educators can develop educational practices and curricula that account for and incorporate students’ cultural frameworks, outcomes improve for culturally and linguistically diverse students. Culturally responsive teaching is a pedagogical approach that does just that. This research project aimed to bring to light the various ways that general education professors define and enact culturally responsive teaching practices. It further illustrates how students receive and interpret these culturally responsive approaches. Using the general education college within a …

A Case Study Examining How Students In An Elementary, Early Childhood, And Exceptional Child Educator Preparation Program Acquire Technology Skills, Jana L. Gerard

Dissertations

This qualitative case study examined two sections of an educational technology class that was part of an elementary, early childhood, and exceptional child educator preparation program, to determine how students acquired educational technology skills for future teaching. As the ability to integrate educational technology skills into teaching and learning is vital to preservice educators, this study aimed to address possible changes needed in educator preparation programs to ensure preservice educators are ready to effectively teach with educational technology in their field experiences, student teaching, and future classrooms. In order to examine how students acquired educational technology skills, the researcher observed …

The Design, Synthesis, And Characterization Of Copper-Based Metal-Organic Frameworks For Their Investigation Against Cancer And Their Effect As Anti-Microbial Agents, Sandy Elmehrath

Dissertations

A wide range of nanomaterials have been developed for biomedical applications, such as drug delivery, biomedical imaging, and sensors. Nanomaterials can include nanoparticles (NPs) and nanofibers with various dimensions that are both natural and synthetic. A successful nanomaterial, for use in biological applications, is characterized by its biocompatibility, biodegradability, intrinsic high surfaces area, high interconnected porosity, and functionality. These features were achieved with the development of metal-organic framework (MOF) nanostructures. MOFs are assemblies of metal ions and organic linkers that are built into different geometries and can exist in all dimensions (up to 3-D). The choice of linkers with well-defined …

Diagnostics Of Dementia From Structural And Functional Markers Of Brain Atrophy With Machine Learning, Tetiana Habuza

Dissertations

Dementia is a condition in which higher mental functions are disrupted. It currently affects an estimated 57 million people throughout the world. A dementia diagnosis is difficult since neither anatomical indicators nor functional testing is currently sufficiently sensitive or specific. There remains a long list of outstanding issues that must be addressed. First, multimodal diagnosis has yet to be introduced into the early stages of dementia screening. Second, there is no accurate instrument for predicting the progression of pre-dementia. Third, non-invasive testing cannot be used to provide differential diagnoses. By creating ML models of normal and accelerated brain aging, we …

One-Stage Blind Source Separation Via A Sparse Autoencoder Framework, Jason Anthony Dabin

Dissertations

Blind source separation (BSS) is the process of recovering individual source transmissions from a received mixture of co-channel signals without a priori knowledge of the channel mixing matrix or transmitted source signals. The received co-channel composite signal is considered to be captured across an antenna array or sensor network and is assumed to contain sparse transmissions, as users are active and inactive aperiodically over time. An unsupervised machine learning approach using an artificial feedforward neural network sparse autoencoder with one hidden layer is formulated for blindly recovering the channel matrix and source activity of co-channel transmissions. The BSS sparse autoencoder …