Digital Commons Network^™

Elementary Teachers’ Perceptions Of The Impact Of Poverty On Instruction And Support With Elementary Students Experiencing Rural Poverty In A Rural Title I Elementary School, Mitzi Mccann Jackson

Theses and Dissertations

Nearly 30 million people in the United States live in households with an annual income of less than @25,962 for a family of four. To the United States Census Bureau, this income threshold constitutes a family (or individuals in a family) as being in poverty. Poverty is not solely about income thresholds; rather, how much income levels impact learning, education, and teachers is a greater area of concern. The purpose of this study was to explore how teachers’ perceptions of poverty impact how they instruct and support elementary students experiencing rural poverty, what differences exist in instruction and support between …

El Modelo De Respuesta De Intervención Y La Percepción De Los Maestros De Escuela Elemental Sobre Las Prácticas Para El Pre-Registro De Estudiantes De Escuela Elemental, Omar Octavio Mercado Rivera

Theses and Dissertations

Esta disertación aplicada fue diseñada para proporcionar información relacionada a El Modelo de Respuesta de Intervención y la Percepción de los Maestros de Escuela Elemental sobre las Prácticas para el Pre-Registro de Estudiantes de Escuela Elemental. La presente investigación pretende explorar el modelo de respuestas de intervención y la percepción de los maestros de escuela elemental sobre la implementación previa al pre-registro de estudiantes en escuela elemental. Los últimos cambios que ocurren en el campo de la educación incluyen la introducción del Modelo de Respuesta a la Intervención (MRI) en combinación con el Modelo de Prestación de Servicios Inclusivos, previo …

Attention Deficit Hyperactivity Disorder: Lived Experiences Of Adults Diagnosed With Adhd, Carole Larson Yokell

Theses and Dissertations

The problem addressed in the research was that many individuals were not diagnosed with attention deficit hyperactivity disorder (ADHD) until they were adults. The purpose of the study was to examine the experiences and beliefs of participants regarding the management of ADHD and the impact that experiences may or may not have regarding the quality of life during adulthood. This study utilized a phenomenological qualitative approach to collect data from adults diagnosed with ADHD about their life experiences. Data were gathered with virtual conference interviews and phone calls using an interview protocol that the researcher developed. Qualitative methods were utilized …

Exploring The Influence Of School Location On School Resource Officers’ Perceptions Of Their Roles And Priorities, Larry A. Potts

Theses and Dissertations

Despite the widespread presence of school resource officers (SROs) in public schools for decades, their proper roles and priorities have remained unsettled because those roles are often varied, complex, conflicting, and ambiguous. The purpose of this qualitative study was to understand how SROs perceive their roles and priorities and whether school location influences those perceptions. Qualitative research methods provided opportunities for one-to-one interviews with SROs and their supervisors. Two elements embedded in the design consisted of a descriptive questionnaire provided to the SROs before their interviews, and a qualitative interview question designed to elicit a percentage estimate response from SROs. …

Examining Teachers’ Experiences With Mindfulness Practices To Promote Positive Relationships And Student Engagement In The Classroom, Hiram Ortega

Theses and Dissertations

In recent years mindfulness practices in the classroom have become increasingly relevant to bring awareness to the present moment, the here-and-now. The literature indicates that mindfulness reduces stress/anxiety in the classroom, and promotes self-regulation, cognitive flexibility, self-compassion, and empathy that contributes to positive classroom behavior, communication, and effective instructional practices. The purpose of this qualitative research is to analyze teachers’ experiences with mindfulness practices in promoting positive relationships and student engagement in the classroom. A group of teachers from an at-risk school district in the southwestern region of the United States were interviewed. The teachers answered 10 open-ended questions about …

Multilevel Modeling Of Academic Self-Concept And Moderation Of The Big-Fish-Little-Pond Effect In Math And Science For Timss 2019 Participating Countries, Heather Marie Spangler

Theses and Dissertations

Self-concept is an important construct across a variety of disciplines as a facilitator of a full range of human potential. Big Fish Little Pond Effect (BFLPE) results have confirmed global generalizability for the negative effects of school- and country- averaged achievement on students’ academic self-concept based on social comparisons with implications that generally discredit ability grouping, streaming or tracking. However, few studies have identified variables that ameliorate the negative effects of BFLPE. Accordingly, this study applied hierarchical linear modeling (HLM) in HLM 8.2 software to examine the effects of student, school, and country-level moderators of both school- and country-level BFLPE …

Risk And Resilience: An Exploration Of Adverse Childhood Experiences, Protective Factors, And Internalizing Symptoms In Black Youth, Irene A. Jacobs

Theses and Dissertations

The study examines mechanisms of risk and resilience that influence the psychological well-being of Black youth. Previous literature has established a link between adverse childhood experiences (ACEs) and mental health outcomes in youth (Kerker et al., 2015; Thakur et al., 2020). A substantial amount of the ACEs literature solely focuses on risk factors (e.g., mental impairment, low SES, health risk behaviors) for poor outcomes associated with ACEs. Despite Black youth experiencing high rates of ACEs (Liu et al., 2019), the ACEs literature examining mechanisms of their resilience is sparse (Meeker et al., 2021). Given the state of the ACEs literature, …

The Promis Women Education Program: Promoting Cervical Cancer Prevention Methods Among Muslim Women In Virginia, Asmaa M. Namoos

Theses and Dissertations

Abstract

Purpose: US Muslim women have suboptimal participation in cervical cancer screening and prevention services. This is due in part to a lack of access to culturally relevant education programs. To address this issue three aims were identified: Aim 1. Adapt existing evidence- based educational materials for a religious and culturally appropriate intervention; Aim 2. Test the preliminary efficacy of the intervention and Aim 3. Assess the feasibility and acceptability of the intervention and materials.

Methods: The ORBIT model for developing behavioral interventions guided intervention design, refinement (Phase I), and preliminary testing (Phase II). Focus groups and interviews were conducted …

Application Of Novel Supercritical Fluid Technology In Developing Albendazole Solid Dispersion And Making Albendazole Nanocrystal Against Colon Cancer, Yi Guo

Theses and Dissertations

Albendazole (ABZ) is a broad-spectrum anthelminthic drug with poor aqueous solubility. It has also been repurposed to treat various types of cancers. One of the objectives of this research is to prepare solid dispersion of ABZ to improve the solubility and dissolution rate using supercritical fluid (SCF) technology. The other objective is to repurpose ABZ against colorectal cancer (CC) by formulating ABZ nanosuspension (NS), also known as nanocrystal. There are various methods to prepare solid dispersions, but SCF using carbon dioxide (CO2) becomes attractive due to its own advantages, including non-toxic, low temperature required, low cost and environmentally friendly without …

Layer-By-Layer Assembled Particles For Non-Invasive Inhaled Therapeutic Delivery To The Lungs, Gautam Chauhan

Theses and Dissertations

Inhalation route is frequently used to administer drugs for managing respiratory diseases with high pulmonary drug concentration and low systemic side effects. But due to the complex lung structure and defense mechanism, only a small fraction of the dose can reach the lung. There have been several advances in strategies to overcome these challenges and achieve localized delivery to the lung. In this study, we are expanding the scope for lung delivery using a multifunctional delivery system called layer-by-layer (LbL) assembled particles. These are core particles coated with polyelectrolytes multilayer which have a wide range of properties and can be …

Controlled Release Matrix Tablet Formulation Of Verapamil Hydrochloride, Shapali Anil Bagde

Theses and Dissertations

Three major challenges face the formulation of a successful hydrophilic polymer matrix. The objective of the formulation research is to concentrate on these issues. The first challenge is to maintain consistent drug release from these matrix systems; swelling and polymer dissolution occur when these systems are placed in a dissolution medium. A gel layer forms as the polymer swells, increasing the matrix tablet thickness. Polymer dissolution starts with chain disentanglement over time causing the matrix tablet thickness to gradually decrease until it undergoes complete dissolution. In the release of water-soluble drugs through a hydrophilic matrix, the thickness of the gel …

Psychological Safety In Startup Organizations, Jessica Barhydt

Theses and Dissertations

Psychological safety is an individually held belief that a group is safe for interpersonal risk-taking. Scholars have studied the concept primarily as a team-level construct. However, recent studies suggest that climates of psychological safety exist at the organizational level. An examination of the dynamism of the construct at the organizational level is needed: how it grows, changes, and declines. Startups, which grow and change quickly, are an excellent context to study organizational psychological safety. Through interviews, this study explored psychological safety as an organizational-level construct in startup organizations. Specifically, it examined potential commonalities between high and low psychological safety as …

Examining K-12 School Leadership Through A Complexity Theory Lens, Mandi Lehnherr

Theses and Dissertations

Observing the connection between complexity theory and the K-12 education field, I conducted an extensive literature review to discover much research had already been undertaken. However, given the pervasive, wicked problems that still exist, there may be gaps in the operationalization of the findings. The purpose of this research is to determine how school leaders understand the complexity of their school system and if examining school leadership from a complexity lens may uncover practices that could create more effective school operations in dynamic environments. Ten school principals and leaders were interviewed. Five major themes were derived from the data: a) …

International Students’ Perception Of The Development Of Their Digital Academic Writing Identity Based On Their Participation In An Intensive English Language Program, Francesca L. Nesfield

Theses and Dissertations

The U.S. economy receives consistent and increasing benefits from international students in higher education, an estimated $41 billion during the 2018-2019 academic year. However, the existing research literature has failed to determine whether Intensive English Language Programs (IELP) adequately prepare these students for college-level composition in digital mediums. The objective of this study is to distinguish the perceptions of how academic digital composition and identity were developed among international students relative to their experiences in an IELP. This dissertation research sought to understand the cultural perspectives of international students around a) their digital writing identity, b) digital composition in academia, …

Exploring Digital Portfolios And Their Effects On Test Scores, Dithmar Kenneth Rualo

Theses and Dissertations

Many educators in the field are looking for ways to grade their students. Many of our youth can learn new concepts and attain academic growth but have difficulties in the traditional lecture-based classroom. Digital portfolio incorporation in our secondary classrooms may be a solution to engaging learners through various interactions using online learning tools, interaction with peers, and their teachers. This exploratory study investigated the current value of digital portfolios in improving academic performance in today’s classroom. Much of the trend was popular ten years ago. The research explored how current educators in the secondary school setting feel about the …

The Experiences Of Parents In A Christian Spiritual Parenting Program, Zili Wang

Theses and Dissertations

Christians face a rising problem in faith transmission to the next generation (Kinnaman & Hawkins, 2016). Research indicates that younger generations are less religious than their parents in many countries, especially in the U.S. (Pew Research Center, 2018b). Even though most American Christians say that faith is vital in their life, educating children in religion is critical because it provides moral guidance and appropriate values (American Enterprise Institute, 2019). However, most Christians find it challenging to perceive and articulate the relationship between faith and daily life even though they attend church regularly (Bunge, 2008). Also, many parent-child spiritual programs organized …

Meta-Analysis Of Factors Impacting Reading Impairment Rates In Studies Of Children With Developmental Language Disorder (Dld), Kayla Dewey

Theses and Dissertations

Purpose - Developmental language disorder (DLD) is a common yet underdiagnosed disorder centered on difficulties with oral language, and often associated with word reading and reading comprehension difficulties. Numerous studies have documented high rates of reading impairment in children with DLD, but the specific rates vary widely across studies. The purpose of this meta-analysis was to help provide accurate prognostic information about this disorder by determining the average proportion of participants with DLD who also had reading impairment, and to determine whether variability in the rate of reading impairment was significantly influenced by studies’ methodological features, including recruitment method, type …

Daily Activities And Routines: A Comparative Case Study Of The Home Language And Literacy Environment Of Spanish-Speaking Toddlers With And Without Older Siblings, Eugenia Crosby-Quinatoa

Theses and Dissertations

The purpose of this study was to identify malleable practices in the homes of Spanish-speaking toddlers prior to school enrollment. This was achieved by examining daily activities and routines and the role older siblings played in these interactions to obtain a more comprehensive understanding of the home language and literacy environment and practices. Additionally, this study aimed to explore, through the narratives and responses of mothers, the home experiences, beliefs, values, and goals associated with toddlers’ development, particularly early language and literacy. This study included four Spanish-speaking families with toddlers, two of which did not have an older sibling residing …

Marine And Human Environmental Factors Influence Vibrio Parahaemolyticus And Vibrio Vulnificus In Vitro Biofilm Processes On Plastics, Ryan Eric Leighton

Theses and Dissertations

Marine bacteria often exist in biofilms as communities attached to surfaces, like plastic. Growing concerns exist regarding marine plastics acting as potential vectors of pathogenic Vibrio, especially in a changing climate. It has been generalized that Vibrio vulnificus and Vibrio parahaemolyticus often attach to plastic surfaces. Different strains of these Vibrios exist having different growth and biofilm forming properties. This work evaluated how temperature and strain variability affect V. parahaemolyticus and V. vulnificus biofilm formation and characteristics on glass (GL), low-density polyethylene (LDPE), polypropylene (PP), and polystyrene (PS). This work also evaluated how human body related factors like temperature, …

The Impact Of A Series Of Professional Development Sessions On Culturally Responsive Pedagogy (Crp) On The Awareness Level Of Seven Teachers At A Suburban High School, Charity Jo Brady

Theses and Dissertations

This dissertation aimed to examine the impact that culturally responsive pedagogy had on a suburban high school. Specifically, it focused on the effectiveness of a six-session professional development series in increasing the awareness level of seven teacher-participants at Bayside High School during the Spring 2022 semester. The study utilized pre- and post- questionnaires, weekly journal reflections (written), field notes and observations, and participant interviews for data collection. The findings suggest that the professional development sessions were successful in increasing the awareness level of the teachers, leading to a more culturally responsive classroom environment. This study highlights the importance of ongoing …

Producer Interviews And Analysis As A Tool For Science Communication And Research Implementation In Agriculture, Lacy Marie Barnette

Theses and Dissertations

Research implementation beyond the laboratory requires both sound science and high-quality science communication. Science communication is an emerging field that is increasing in importance as the public has access to more information than ever, however there are some underlying obstacles like the lack of communication-specific training that scientists receive and disconnected populations. Agricultural producers have a perceived history of being disconnected from science even though modern agriculture relies heavily on researched practices and has an entire network of extension agencies intended to communicate with producers. One reason for this perceived disconnect is the one-way communication that has dominated science communication …

Oceanographic Applications Of A Monolithic Spatial Heterodyne Raman Spectrometer, Amanda Carol Agrawal

Theses and Dissertations

Carbon dioxide enters the ocean through a variety of natural and anthropogenic sources, and has a significant impact on ocean acidification, the marine buffering system, and bioavailability of life-essential carbonate ions. As carbon dioxide dissolves it reacts with water to form carbonic acid, which then rapidly dissociates into hydronium, bicarbonate, and carbonate ions. Some hydronium ions protonate carbonate to form bicarbonate, driving the carbonate concentration lower while there is a net increase in hydronium concentration. Monitoring the carbonate equilibrium system in the ocean is a complex analytical problem, where speciation is often measured or calculated indirectly ex situ. It …

Lived Experiences Of College-Educated Black Women: Contextualizing Gendered Racial Health Disparities, Christiana L. Johnson

Theses and Dissertations

Black women are disproportionately affected by gendered racial health disparities. Public health research that seeks to unearth the root cause of these gendered racial health disparities is insufficient. More recently, researchers have turned their attention to structural inequities and their influence on the lived experiences of Black women. This study contributes to this body of work by using a theoretical concept derived from intersectionality⎯structural gendered racism⎯to identify key upstream social factors that shape nulliparous, college-educated Black women's lived experience and childbearing desires. Semi-structured, individual interviews were conducted with nulliparous, college-educated Black women (n=30), ages 25 to 35, living in the …

Synthesis And Characterization Of Polymer Grafted Nanoparticles, Eric Gerald Ruzicka

Theses and Dissertations

This dissertation focuses on the design, synthesis, and characterization of well controlled interfaces on nanoparticle surfaces. Reversible addition-fragmentation chain transfer (RAFT) polymerization was used to synthesize block copolymers and polymer grafted silica nanoparticles (PGNs) with precise control over molecular weight, graft density, and architectures.

In the first chapter, polymer molecular weights were determined through diffusion ordered spectroscopy NMR (DOSY NMR) as an alternative to size exclusion chromatography (SEC). Polymer standards of known molecular weight were analyzed through DOSY to obtain their respective diffusion coefficients. A calibration curve was generated correlating diffusion coefficients with polymer molecular weights. The reliability of the …

The Association Of Student Achievement And The Frequency Of Curriculum Supervision And Evaluation Practices Of Principals Across Comparable School Clusters, James S. Reynolds Iv

Theses and Dissertations

This study examined the frequency of principals’ curriculum supervision and evaluation practices across comparable school clusters. It was hypothesized that principals of the schools at the top of each cluster, sorted by student achievement, are more frequently involved in practices pertaining to the evaluation and supervision of written, taught, and tested curricula. Schools were grouped based on their enrollment and demographics using a cluster analysis approach, sorted from greatest to least by their composite student achievement score, then classified as a top or bottom-performing school within their cluster. This study identified differences in the frequency of the principal's curriculum leadership …

Characterization And Decoding Of Speech Activity From Intracranial Signals, Pedram Zanganeh Soroush

Theses and Dissertations

Speech is the first and foremost means of human communication. Millions of people worldwide suffer from severe speech disorders due to neurological diseases such as amyotrophic lateral sclerosis (ALS), brain stem stroke, and severe paralysis. A speech neuroprosthesis that decodes speech directly from neural signals could dramatically improve life for these individuals. Recent studies have demonstrated that it is possible to decode and synthesize various aspects of acoustic speech directly from intracranial measurements of electrophysiological brain activity. For those who have completely lost the ability to speak, the objective is to synthesize acoustic speech directly from brain activity during imagined …

Assessing Drug Development Proporties Of Antithrombotic And Anti - Cancer Agents, Elsamani I. Abdelfadiel

Theses and Dissertations

The current GAG anticoagulants such as heparin, heparin derivatives, and vitamin K antagonists, such as warfarin continue to be the backbone of anticoagulant therapy. These drugs act through an indirect mechanism to convey inhibition of several coagulation enzymes. However, xv their use leads to several serious adverse effects, such as excessive bleeding risk and unpredictability of patient response. Regardless of their clinical achievement, every individual agent is accompanied by several side effects, particularly major/minor bleeding, thrombocytopenia, drug-food or drug-drug interactions, or absence of antidote. Of all these side effects, bleeding, and a lack of an effective antidote to reverse excessive …

Religiously Responsive Pedagogy In Christian Schools: A Qualitative Exploration Of Faculty Perceptions Of Faith Integration, Andrea R. Woodard

Theses and Dissertations

This qualitative study introduced a theoretical framework of Religiously Responsive Pedagogy (RRP) and explored the ways in which RRP is enacted in Christian schools, along with the barriers and supports that may exist for effective RRP within those schools. The study investigated PK-12 faculty perceptions of faith integration, responsiveness to students, and school support in order to develop this new framework. Twelve teachers participated in a semi-structured interview via Zoom, which included four scenarios to probe teacher perspectives on RRP. The data was coded recursively using Boeije’s (2002) constant-comparative method.

The primary research questions addressed were:

• How do teachers at …

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Morphometric Analysis Of Premolars And Its Relevance To Root Canal Anatomy, James Degracie

Theses and Dissertations

Introduction: Premolars are especially challenging to treat endodontically due to their small size and often-intricate anatomy. While the majority of premolars present with one or two root canals, the presence of three root canals has been reported. The aim of this study was to investigate the correlation between the root-to-crown width ratio (RCWR) and number of root canals in maxillary and mandibular premolars.

Methods: Data was retrieved from the electronic health records of patients treated at Virginia Commonwealth University School of Dentistry. A total of 100 premolars which had both periapical radiograph (PA) and cone beam computed tomography scans (CBCT) …

Factors Associated With College Students' Intention To Use Telehealth For Primary Care, Conor Duffy

Theses and Dissertations

College students are less likely than the general population to have a regular primary care provider and engage in routine health visits. Recent research provides evidence that telehealth is a convenient alternative to in-person primary care and that college students are comfortable using this technology, suggesting that telehealth has the potential to mitigate this disparity. However, little research has examined which factors are associated with college students’ intention to use telehealth and attitudes toward telehealth specifically in the primary care context. The overarching goal of this study was to address this gap in the literature and identify factors associated with …