Digital Commons Network^™

Toward Self-Reconfigurable Parametric Systems: Reinforcement Learning Approach, Ting-Yu Mu

Dissertations

For the ongoing advancement of the fields of Information Technology (IT) and Computer Science, machine learning-based approaches are utilized in different ways in order to solve the problems that belong to the Nondeterministic Polynomial time (NP)-hard complexity class or to approximate the problems if there is no known efficient way to find a solution. Problems that determine the proper set of reconfigurable parameters of parametric systems to obtain the near optimal performance are typically classified as NP-hard problems with no efficient mathematical models to obtain the best solutions. This body of work aims to advance the knowledge of machine learning …

A Tale Of Two Schools And Their One Journey To Improvement, Catherine M. Jarnot

Dissertations

In accordance with the accountability measures required for public education by the United States Federal Government, the State of Colorado has developed a system for ranking school performance based on academic achievement, academic growth, and postsecondary and workforce readiness (Colorado Department of Education, 2016b). Schools are rated as Turnaround, Priority Improvement, Improvement, or Performance status (Colorado Department of Education, 2016b). Schools in Turnaround or Priority Improvement status must move to Improvement or Performance status in less than five years (Colorado Department of Education, 2016e). The focus of the study was on the leadership skills and behaviors of principals in schools …

Increasing Undergraduate Student Engagement In Academics: An Ecological Momentary Intervention, Kerry Douglas Duck

Dissertations

As students enter the university environment, they are presented with various commitments that may or may not impede academic performance. With the issues of student attrition and retention, there is a need to provide further tools for students to use to monitor their performance. As students’ progress to higher level coursework, expectations and time commitments increase, and self-regulation of learning becomes even more important. Researchers may be able to deliver information to help students with self-regulation of learning by leveraging new affordances in technology in students’ daily lives. The purpose of this dissertation was to examine the feasibility and associated …

The Relationship Between State College Readiness Policy And Student Outcomes: A Multilevel Growth Model, Rachel Christeson

Dissertations

This study examined whether policies related to college readiness have a relationship with student outcomes of college-going, student retention rates, and graduation rates for the overall state population as well as the rates specifically for European American and non-European American students. Specifically, a multilevel modeling approach was employed to determine whether significant relationships exist between the presence of state college readiness policies and change in student outcomes over time when controlling for state- and institutional-level factors. Several policies were considered, including: (a) the existence of a college-readiness definition, (b) a requirement for students to take college-prepatory courses in order to …

Using Online Communities To Prepare Teachers To Operate As Transformative Intellectuals, Zachary Morgan Clancy

Dissertations

Online communities have the potential to help teacher education programs inform and prepare future teachers to teach children equitably and confront social injustices. Online communities of scholars, activists, and artists can be used as a resource for teacher educators to prepare teacher-candidates and in-service teachers to participate in teacher inquiry and practitioner research. In turn, the research that they generate can be used by preservice and in-service teachers in the future. Online communities can also be used by classroom teachers as a form of professional development. My study included six participants – undergraduate college students, classroom teachers, and teacher-educators – …

Chroma: An Original Composition For Violin, Cello, Vibraphone And Interactive Electronics, Todd Swingle

Dissertations

Chroma is an original composition for violin, cello, vibraphone, and interactive electronics that uses sound to create and control visual images. Using Max/MSP/Jitter, Chroma tracks the pitch and amplitude of the live performers and uses the data to construct a visual representation of the music that is projected onto a screen behind the performers. The music utilizes the color associations of the composer to create a narrative that exists both in sound and in the generated visual images. It explores links between music and emotions and how those links can be portrayed through color and images.

The Role Of Mental Models In Sensemaking During The Data-Driven Decision-Making Process And Their Impact On Instructional Practice, Ann M. Bingham

Dissertations

Data-driven decision making (DDDM) is a practice that has been shown to improve student achievement. However, the success of this process relies on the mental models applied during sensemaking. The purpose of this multiple case study was to describe and interpret how elementary mathematics teachers made sense of data from the Delta Math readiness screener. Additionally, this study captured the types of changes that teachers made as a result of analyzing this particular data source.

This study employed qualitative methods to determine the mental models that teachers applied during DDDM. These methods also provided participants an opportunity to describe how …

Principal Leadership And The Development Of Teacher Professionalism And Autonomy Within A Collaborative School Culture, Sukinah Ali Al Ramel

Dissertations

This instrumental multiple case study examines the actual activities and behaviors of elementary school principals who are known for building a collaborative school culture. The principals in these case studies were nominated by key informants as leaders who empower and mobilize teachers to grow professionally and interdependently in ways that enhance self-direction and motivation through reflecting on their own practices, practicing authentic self-assessment, and setting goals based on evidence of student achievement. Each Southwest Michigan principal was recruited from a diverse sample that met the study criteria. The study design included data from multiple in-depth interviews and documents shared by …

A Mixed Methods Investigation Of Positive Behavior Interventions And Supports In A Midwest Middle School, Thomas Dittrich Jr.

Dissertations

The researcher investigated the difference between the implementation of Positive Behavioral Interventions and Supports (PBIS) and student achievement scores and the number of failing grades in a Midwest United States suburban public middle school through a mixed methods research study. The collected and analyzed secondary data to complete quantitative research included numbers of office discipline referrals and failing grades, average daily attendance percentages, and percentages of students scoring proficient or advanced on the Missouri Assessment Program tests. Staff members, during the specified timeframe of the study, completed a Google Form survey and provided qualitative data. The z-test for difference in …

An Assessment Of Conceptual Understanding Of Metabolic Pathways, Amani Atiyalla Abdugadar

Dissertations

Researchers have previously studied misconceptions of biochemistry topics such as photosynthesis, protein structure, and ATP-production. However, no studies have reported on students’ misconceptions regarding major metabolic pathways. Since learning metabolism builds on students’ prior knowledge, new material being learned will be affected by the presence of any misconceptions. Some of these misconceptions will be robust and thus hard to be replaced by the correct concepts. Thus, if students are to learn new material, these misconceptions must be diminished. This dissertation focused on the origins of these misconceptions, investigated what misconceptions students had on metabolism, and why students developed misconceptions instead …

Methodological Considerations For Researching Hidden-Populations With An Emphasis On Homeless Research Sampling Methods, Tyler William Kincaid

Dissertations

The purpose of this study was to: (a) gain a methodological understanding of hidden population sampling techniques and to offer insight into which approach is best suited for a given researcher’s sample; and (b) to provide increased methodological understanding of how to best research hidden populations like the homeless by providing researchers, social care providers, and governing bodies with detailed guidelines for their work with the homeless. Regardless of the method, hidden and homeless populations are hard to find, understand, and approach with cultural responsiveness (Roche, et al. in Lahman, 2017). Using a critical theoretical approach to the research, this …

Dual Language Elementary Teacher Supports In Rocky Mountain Resort Communities, Miguel Donald Salinas

Dissertations

Dual language (DL) programs have been proven to increase student achievement (Thomas & Collier, 2002; Thomas, Collier, & Collier, 2010) but a gap remains in how to support teachers in their instruction of Spanish to both English home language and Spanish home language students. This mixed methods, explanatory, sequential design study was conducted in two Rocky Mountain resort communities in two school districts. Participants were chosen based on the research criterion of being DL elementary teachers in rural amenity-based destinations. The Guiding Principles for Dual-language Education (Howard et al., 2018) was used as the conceptual framework. Data were obtained from …

Developing A Theoretical Framework For Visualization-Based Pedagogical Content Knowledge (V-Pck) Based On Middle School Teachers’ Views And Uses Of Visualizations As An Instructional Tool, Jacqueline Samuel

Dissertations

Visualizations is a categorical term that is often used to provide visual imagery to the communication of processes, concepts, exemplar phenomena, and general information. Objects such as graphs, tables, diagrams, animations, and pictures fall in this category. Existing literature focuses primarily on the use of visualizations in the science field at the high school level, collegiate levels, and in pre-service teacher education programs. A gap in the literature exists which examines how science teachers at the middle school level perceive and use visualizations as instructional components in the classroom. The purpose of this study was to examine science teachers views …

Establishing The Role Of The Mississippi-Alabama Barrier Islands In Mississippi Sound And Bight Circulation Using Observational Data Analysis And A Coastal Model, Laura Hode

Dissertations

The Mississippi-Alabama barrier islands restrict exchange between the Mississippi Sound and Mississippi Bight in the northern Gulf of Mexico. The islands also act as storm breaks for tropical cyclones, so their continued existence sustains marine ecosystems and protects coastal communities. However, the chain has undergone extensive segmentation, erosion, and westward migration in the past two hundred years. The islands are now more susceptible to further erosion (Pendleton et al., 2013; Morton, 2007). Additional reduction in island subaerial land extent would alter circulation in the Mississippi Sound and Bight.

Consequently, this study targeted the two most vulnerable barrier islands in the …

Modelling And Fault Diagnosis Approach For Proton Exchange Membrane Fuel Cell Systems Incorporating Ambient Conditions, Saad Saleem Khan

Dissertations

Proton exchange membrane fuel cell (PEMFC), as a source of electrical power, provides numerous benefits such as zero carbon emission and high reliability as compared to wind and solar energy. PEMFC operates at very low temperature, high power density, and has very high durability as compared to other fuel cells. Being a non-linear power source with high sensitivity to ambient conditions variation, the prediction of PEMFC voltage and temperature is a complicated issue. The most common PEMFC models are classified as mechanistic models, semi-empirical models, and purely empirical methods. The mechanistic models are complex and require differential equations to predict …

An Evaluation Of A Stem Magnet Program That Utilizes Project-Based Learning To Improve Student Achievement, Leshea Boromei Serrano

Dissertations

This evaluation of a secondary level STEM Magnet program that implements Project Based Learning (PBL) analyzes three areas of study, Engineering, Biomedical Science, and Game Design and the relationship to student achievement. The three areas of study provide the platform for a STEM-PBL learning methodology that is geared towards stimulating student academic interest through STEM activities intentionally developed and implemented in a cross-curricular framework that applies multiple content standards to solve real-world community issues. Students have the opportunity to develop the needed 21^st century skills of communication, collaboration, critical-thinking and problem solving with the ultimate outcome of generating a …

Happiness Advantage: The Impact On School Culture, Jillian Sagan

Dissertations

The purpose of this evaluation is to analyze the implementation of the Happiness Advantage principles (Achor, 2011) to address the mental well-being for all school district employees. In addition to Happiness Advantage Training (Achor, 2011), the study seeks to determine if the implementation of positive psychology principles affects school culture, teacher engagement and student achievement. The program design incorporates whole district training, ongoing professional development for employees and the autonomy to generate new ideas to sustain a positive mindset for individual schools sites and classrooms. The findings indicate that when positive psychology principles are implemented across a school district, teacher …

An Evaluation Of A Sixth Grade Intensive Mathematics Program And Impacts On Student Achievement, Tammy Dery

Dissertations

The purpose of thisevaluation is to analyze anIntensive Math program’s quality and design, as well as, address the impact of the program to determine whether the intensive mathematics class, and the use of computer-based support,impacts student achievement. The program design incorporates a two-prong model of teacher-directed and computer-based intervention. The relationship of the intensive mathematics curriculum implemented with struggling learners and closing the mathematics achievement gap are evaluated through the analyses of student data, the quality of implementation and program usability and teacher and teacher leader perspectives. The findings indicate that small groups and individualized attention for students is vital …

Impact Of Leader In Me On Social-Emotional Learning Of Elementary Students, David Danielski

Dissertations

Social-emotional learning and college and career readiness skills are increasingly important in preparing our students for a successful future. The Leader in Me, based on Steven Covey’s seven habits, offers a process intended to increase the leadership skills of students through the explicit teaching of each of the habits. By studying the practices and outcomes of The Leader in Me process from schools with high degrees of implementation, this study evaluates the impact on social-emotional learning of elementary students. The findings inform programmatic decisions for social-emotional learning implementation and advocate for policy that emphasizes teacher preparedness and accountability measures for …

Academic Achievement In Children With New-Onset Seizures Or Asthma, Angela Marie Mcnelis

Dissertations

It has long been recognized that children with epilepsy have more learning difficulties in school than either children without seizures or children with other chronic disorders, such as asthma. Problems such as repeating a grade, receiving special services, and scoring poorly on standardized achievement tests are over-represented in children with epilepsy. Factors that lead to problems with academic underachievement are not well understood. Primary purposes of the study were to examine change in academic achievement over a 12-month period and to identify factors related to achievement in children with new-onset seizures. A secondary purpose was to examine differences in academic …

Testing A Decision Making Model For Nursing, Daniel Bruce Coble

Dissertations

The purpose of this study was to test a decision making model for nursing developed in a previous qualitative study. Concepts in the decision making model were creativity, experience, leadership, education, risk taking, and informatics. The Chinese philosophy of Cosmogony and chaos theory provided the theoretical framework for the model. Analysis of Decision Making in Nursing (ADMN), a tool developed for this study, incorporated a bipolar scale of 81 items. Pilot testing indicated adequate reliability and validity of the ADMN.

The Four-Day School Week: Teacher Retention And Recruitment, Perceptions, And Achievement, Peter Damian Fay

Dissertations

In order to explore various issues with the four-day school week in rural, Missouri school districts, the researcher conducted a mixed-methods study which utilized both quantitative and qualitative research techniques. The researcher was primarily interested in the ability of the four-day model to attract and retain teaching staff, although he was also interested in the impact on student achievement. The purpose of this study was to investigate the possible effects of the four-day school week model on teacher attraction and retention in a rural school district in Missouri. The researcher conducted interviews with seven principals of schools that had adopted …

Towards Completely Automated Glycan Synthesis, Matteo Panza

Dissertations

Carbohydrates are ubiquitous both in nature as biologically active compounds and in medicine as pharmaceuticals. Although there has been continued interest in the synthesis of carbohydrates, chemical methods require specialized knowledge and hence remain cumbersome. The need for development of rapid, efficient and operationally simple procedures has come to the fore. This dissertation focuses on the development of a fully automated platform that will enable both experts and non-specialists to perform the synthesis of glycans. Existing automated methods for the synthesis of oligosaccharides are highly sophisticated, operationally complex, and require significant user know-how. By contrast, high performance liquid chromatography (HPLC) …

Recover Data In Sparse Expansion Forms Modeled By Special Basis Functions, Abdulmtalb Mohamed Hussen

Dissertations

In data analysis and signal processing, the recovery of structured functions (in terms of frequencies and coefficients) with respect to certain basis functions from the given sampling values is a fundamental problem. The original Prony method is the main tool to solve this problem, which requires the equispaced sampling values.

In this dissertation, we use the equispaced sampling values in the frequency domain after the short time Fourier transform in order to reconstruct some signal expansions, such as the exponential expansions and the cosine expansions. In particular, we consider the case that the phase of the cosine expansion is quadratic. …

The Role Of Bro Culture In Exploration Of Why Women Leave It, Ana Krasteva

Dissertations

The goal of this exploratory study is to investigate ways in which whether the phenomena called the ‘bro culture’ may influence on women in the information technology (IT) workforce. It specifically seeks to determine whether bro culture has an impact on why women in IT move from one IT company to another; leave IT for a non-technical field; or leave the workforce entirely.

Although there is a plethora of studies on why women leave positions in IT, less understood is the impact and influence of bro culture on the decision.

My findings suggest that bro culture in the workplace is …

Educators’ Perceptions Concerning The Leading Factors Of Mathematics Achievement In Top-Ranking Nations Around The World, Kendra Snow

Dissertations

The purpose of this study was to examine the perceptions of post-secondary mathematics educators from countries considered to be highly successful in the area of mathematics based upon results of international assessments. Four instructors were randomly selected from a homogenous sample within the nations of Canada, China, Japan, and Singapore to contribute information about the phenomenon of mathematical achievement. Frameworks from SRI International (2009), Matthews (2013), and Schoenfeld (2014) were integrated to design this study focused on curriculum, pedagogy and instructional approach, teacher knowledge and expectations, and organizational and social climate as possible factors that support student mathematical proficiency. Interviews …

Leading For Excellence: Leadership Behaviors That Cultivate A High-Achieving School Environment, Kristen Belknap

Dissertations

Purpose: The purpose of this explanatory mixed-methods study was to determine the degree of importance for the 12-step principles proposed by Harvey et al. (2014) to create a K–12 school environment that fosters high student achievement as perceived by public school elementary principals. A secondary purpose was to explore and describe the leadership strategies for implementing the 12-step principles proposed by Harvey et al. to create a K–12 school environment that fosters high student achievement as perceived by public school elementary principals.

Methodology: An explanatory mixed-methods study was completed to examine the degree of importance each of the 12 leadership …

The Impact Of Structural Supports On The Success Of Students Of Color In The K-16 Educational System, Brandis Jones, Sherry Holmes

Dissertations

Collective Abstract

This collective dissertation contains the efforts of two practitioners in the field of education who possess a shared vision for designing student experiences with the mission of preparing all students for success in secondary and post-secondary education. The researchers believed that by creating structural supports for students in underserved populations, these same students will increase their educational attainment and access to long-term career opportunities. With successful completion of postsecondary education and with increased career opportunities, students can improve their lives, their families’ lives and the lives of members of their community.

Many students struggled on their educational journeys …

California Expert Principals’ Identification Of The Best Strategies For The Implementation Of A Transition From A Traditional Grading And Reporting System To A Standards-Based Grading And Reporting System: A Delphi Study, Sean Redmond

Dissertations

Purpose: The purpose of this policy Delphi study was to identify the strategies California K-12 expert principals deem necessary for the implementation of a transition from a traditional grading and reporting system to a standards-based grading and reporting system, utilizing a panel of expert principals to rate the importance of the identified strategies and to recommend the best methods of implementing the five most important strategies.

Methodology: The Delphi method was utilized in this study. An expert panel of California K-12 principals was assembled, and three rounds of electronic surveys were administered. The first-round results identified strategies for implementing a …

A Qualitative Exploration Of Perceptions Of Down Syndrome And Student Disabilities In A Suburban Midwest High School, Gregory Wagener

Dissertations

The researcher explored the perceptions of typically-developing students, teachers, and parents of students with Down syndrome and students with disabilities at a suburban Midwestern High School. In exploring these perceptions of students with Down syndrome and students with disabilities, this study intended to explore how to increase effective inclusion of students with Down syndrome and students with disabilities in the general education setting, but more so, to explore the stigmas surrounding students with Down syndrome and students with disabilities in order to better understand the character of typically-developing students, teachers, and parents regarding students with Down syndrome and students with …