Digital Commons Network^™

Nanodiamonds And Carbon Nano-Onions Ceramic Composites And Their Applications, Ibrahim Munkaila Abdullahi

Masters Theses

"Luminescent nanodiamonds are photostable non-blinking fluorescent biocompatible, non-toxic, functional Zable materials made from high-pressure high temperature (HPHT) microcrystalline diamonds. For long, the scientific community has been investigating for a clean, efficient and cost-effective technique to reduce the size of fluorescent microcrystalline diamond into nanodiamonds. Their color center, responsible for the fluorescent properties are crucial for their applications, including biomedical imaging, nano sensing, quantum computing etc, and therefore should not be affected significantly by the method of size reduction applied. A novel size reduction technique that is based on explosive fragmentation was developed and the corresponding fragmented diamonds obtained were characterized …

Explicit Determinantal Formula For A Class Of Banded Matrices, Yerlan Amanbek, Zhibin Du, Yogi Erlangga, Carlos M. Da Fonseca, Bakytzhan Kurmanbek, António Pereira

All Works

© 2020 Yerlan Amanbek et al., published by De Gruyter 2020. In this short note, we provide a brief proof for a recent determinantal formula involving a particular family of banded matrices.

Investigating Bias In Facial Analysis Systems: A Systematic Review, Ashraf Khalil, Soha Glal Ahmed, Asad Masood Khattak, Nabeel Al-Qirim

All Works

© 2013 IEEE. Recent studies have demonstrated that most commercial facial analysis systems are biased against certain categories of race, ethnicity, culture, age and gender. The bias can be traced in some cases to the algorithms used and in other cases to insufficient training of algorithms, while in still other cases bias can be traced to insufficient databases. To date, no comprehensive literature review exists which systematically investigates bias and discrimination in the currently available facial analysis software. To address the gap, this study conducts a systematic literature review (SLR) in which the context of facial analysis system bias is …

Investigating Environmental Performance Management, Vipin Gupta, Yi Zhang

All Works

© 2020, Fundacao Escola de Comercio Alvares Penteado. All rights reserved. Purpose – Even though there is a growing recognition of the externality costs of low environmental performance by firms, there continue to be significant inter-firm differentials in environmental performance management. We build on the theories of strategic management to inquire into the factors contributing to these differentials. Design/methodology/approach – Using a 2015 survey sample of Chinese small and medium enterprises, we empirically investigate the alternative thesis that the profit maximization motive constitutes the appropriate heuristic for the performance management of corporate social responsibility factors. Findings –The green capability of …

A Correlation Study Of Parental Involvement And Student Outcomes In A Georgia School District, Courtney T. Flournoy

Theses and Dissertations

The purpose of this study was to determine if a statistically significant association existed between the responses of parents of middle school students in a Georgia public school district on a parental involvement survey and three variables: eligibility of students to receive free or reduced-price lunch parental marital status, and parental education level.

This study was initiated because of a persistent problem of low academic achievement of the middle school students. There is extensive research related to the importance of parental involvement and the effect of this involvement on student achievement. However, prior to the implementation of this study little …

The Teacher’S Role In Increasing Student Engagement In High School Social Studies Courses, Quarnitra L. Price

Theses and Dissertations

This qualitative case study explored (a) how teaching practices of high school teachers influence student engagement levels and performance in social studies classes, (b) how teachers might deliver more student relatable social studies content, (c) how teachers might help students relate to and become more engaged with important social studies concepts, and (d) how teachers can motivate students to become well-informed and fully engaged citizens. This study also examined existing barriers that prevent students from learning or engaging in social studies coursework.

Research findings suggest teachers play essential roles in how students perceive social studies content and respond to lessons …

Understanding Byod Implementation Experiences Of School Teachers And Administrators: A Phenomenological Perspective, Sophia Lafayette-Lause

Theses and Dissertations

The use of technology to enhance instruction and learning is a daily expectation in public school classrooms throughout the State of Michigan and the United States. Schools are implementing bring your own device/bring your own technology (BYOD/BYOT) programs to meet the demand of providing students access to technology. As a result, students are bringing personal communication devices (cell phones, smartphones, tablets) to school in ever-increasing numbers. Students are using these devices in the classroom for a variety of purposes including the use of social media applications. However, school district policies have not been thoroughly updated to address the implementation of …

Alternate Route - An Examination Of Alternatively Certified Teachers' Job Satisfaction And Self-Efficacy, Adrienne W. Mcelroy

Theses and Dissertations

This applied dissertation was designed to examine the job satisfaction and self-efficacy of alternatively certified teachers in a rural, midsize, public school district in Florida. The examination will include the relationship between job satisfaction and self-efficacy. The results of this study aim to provide school officials with a better understanding of the role alternatively certified teachers fill during the teacher shortage facing our nation.

The researcher utilized two existing surveys. The Job Satisfaction Survey (JSS) was developed by Paul Spector. The JSS further delineates job satisfaction into two subscales: intrinsic and extrinsic job satisfaction. The Teachers’ Sense of Efficacy Scale …

A Comparative Study On Parental Involvement, Roldens Paulynice

Theses and Dissertations

Parental involvement has been found by many researchers to be important in student academic success. However, many school leaders are challenged to get many parents actively involved in their child’s education. At the research site, for example, the researcher observed that many parents do not get actively involved in their child’s education, and they miss the school parental meeting or programs. If this problem is solved, school staff members or leaders would care and would benefit from it. The purpose of this study was to explore the perception of educators on the impact of parental involvement on student success and …

Status Of Women’S Leadership In The Instructional Technology Field, 2014-2018, Kerrian A. Gordon

Theses and Dissertations

The purpose of this study was to assess the leadership status of women in the instructional technology field during the period 2014-2018. Five areas of leadership were examined (a) faculty rank in instructional technology programs, (b) positions on editorial boards of leading instructional technology journals, (c) publications in leading instructional technology journals, (d) presentations at leading conferences in the instructional technology field, and (e) leadership of four leading professional organizations in the field.

The study utilized a quantitative content analysis research method. A code sheet was developed for the five areas of leadership. Research Question 1: What was the leadership …

Lived Experiences Of Teachers In Professional Learning Communities In Transient School Environments, Katelyn Marie Jones

Theses and Dissertations

Professional learning communities (PLCs) are increasingly being used in South Korean elementary schools in order to improve student learning and the quality of teaching. This new educational trend is being funded by provincial offices of education but facing some difficulties in implementation and sustainability. School leaders, teacher leaders, and teachers are struggling to understand the purpose of professional learning communities and how to use them to improve student learning and the quality of teaching. In addition, South Korean elementary school teachers are transient, as they rotate to new schools every two to three years. This impacts their ability to build …

Keep Teaching Science! Successful Strategies To Adapt K–12 Science Experiences For Distance Learning, Wested, Jeanne Norris

Institute for School Partnership: Research & Publications

Webinar: The sudden shift to distance and hybrid learning due to the COVID-19 pandemic has created a need to identify virtual and at-home science experiences that ensure students keep learning science in meaningful ways. Anchored in the vision of the Next Generation Science Standards (NGSS) and A Framework for K-12 Science Education, a new NextGenScience resource highlights ways materials designed for in-person NGSS learning can be adapted for virtual or at-home settings while maintaining or enhancing best practices.

Shifting Courses: Achieving Equity In High School Stem, 100kin10, Jeanne Norris

Institute for School Partnership: Research & Publications

Strategies to achieve science equity through high school course offerings, supporting teachers to facilitate active and applied STEM learning, and creating systems to ensure equitable teaching and learning with examples from mySci.

Student Collaborations In Introductory Statistics Courses; A Network Study, Isabel S. Nowinowski

Open Access Master's Theses

Generation Z, also known as iGen, (individuals born between the mid-1990s and early 2010s), characterized as tech-savvy, independent, and visual, is beginning to graduate college and enter the workforce. While significant research effort has focused on understanding the learning preferences of the preceding Millennial generation (individuals born between the early 1980s and mid-1990s), less is known about the way technology has influenced the educational expectations and learning preferences of Generation Z. A deeper and broader understanding of the way this generation learns would allow universities to modify and enhance course structures and teaching methodologies to suit this incoming generation of …

Graph Models With Missing Data Techniques For Applications In Drug Use Networks, Valerie Ryan

Open Access Master's Theses

Problem: Social context is important in the reduction of engagement in potential risk behaviors, particularly among people who use injection drugs (PWID). People engage in risky behavior together via sharing needles or other drug use equipment and/or though risky sex. If we can identify which attributes are related to increased (or decreased) odds of engaging in risky behavior with others, we can use those results to better target HIV risk reduction interventions among PWID.

Methods: Exponential random graph models (ERGMs) were used to model the probability that there is a tie or connection between people in a network …

The Impacts Of Hearing Loss On Social-Emotional Health, Lili Lan Lebrun Visgilio

Open Access Master's Theses

According to the World Health Organization, over 900 million people are expected to have disabling hearing loss by 2050. Most studies about hearing loss published thus far have focused on the impacts hearing loss has on adults above the age of 60. However, this study examines the relationship between hearing loss and social-emotional health in adults between the ages of 21 and 50. Literature describing the impact of hearing loss on the social-emotional health of young and middle aged adults is sparse. This study uses data from the 2011 wave of the National Health Interview Survey (NHIS) obtained via the …

Evaluating The Effects Of Medications For Opioid Use Disorder On Hiv Risk Behaviors Among A Network Of People Who Inject Drugs, Joseph Puleo

Open Access Master's Theses

People who inject drugs (PWID) are a population with increased HIV risk due in part to sharing drug injection equipment. In networks of people connected through risk behavior, individuals can exert influence on each other. Evidence suggests that receiving medications for opioid use disorder (MOUD) can reduce HIV risk behaviors. However, limited studies have been conducted to determine if there are direct effects (among the participants treated) or disseminated effects (among participants who were not treated themselves, but shared connections with those treated) of MOUD among networks of PWID.

The main goal of this thesis is to evaluate if receiving …

Friction Compensation Using Linear Control Methods, Florian Meiners

Open Access Master's Theses

Friction is one of the most frequently appearing sources of problems in mechanical systems. While several controller designs exist that successfully mitigate or compensate the friction effects in an application, they usually rely on a thoroughly identified model. The focus of this work is on verifying the suitability of a linear dual-loop controller for friction compensation in an arbitrary system. It does not require detailed estimation of a friction model for the design. The controller is complemented by a Luenberger observer, to improve the quality of state feedback.

Based on different model reduction approaches, the control architecture is effectively applied …

Fundamental Understanding And Applications Of Nanoemulsions For Ultrasensitive Electrochemical Analysis, Shashika Gunathilaka Sabaragamuwe Jayasundarakorale

Open Access Master's Theses

We demonstrate a new electroanalytical approach for the ultrasensitive electrochemical analysis using nanoemulsions (NEs) uniquely combined with single entity electrochemistry (SEE). First, we investigate the relationship between the structure and relevant electrochemical activity of NEs. We employ SEE to elucidate the interfacial structure of NEs and their corresponding electrochemical activities, which cannot be unequivocally defined by general microscopic techniques. Throughout this work on nanostructural effect of NEs, we could optimize the most suitable composition of NEs, showing facile electron transfer kinetics across the NE interface as well as a high monodispersity. Particularly, the application of SEE for optimized NEs allowed …

A Blockchain-Based Auditable And Secure Voting System, Madhukara Kekulandara

Open Access Master's Theses

Improving electronic voting systems to provide election security and integrity while controlling cost has been an area of active research for decades. As a result, many technological improvements are incorporated into the voting systems used today. The introduction of technology, however, has not been without issues and has raised new concerns. One is the possibility of inaccurate election outcomes due to technical failures of the equipment. Another is the problem of election security and the possibility of malicious alteration of election results. Yet another concern is the capability to conduct post-election audits to validate and provide confidence in election results. …

Taxonomic Profiling Of Metagenomic Reads Using Deep Learning, Cecile Cres

Open Access Master's Theses

The field of metagenomics studies microbes from environmental samples in a process generating millions of short DNA sequences called reads. The final outcome is to discover the diversity as well as the function of complex microbial communities using computational tools. The general idea adopted by most taxonomic classifiers, which aim to assign taxonomic groups to individual reads, is to compare the target DNA sequences to a reference database and identify the taxon of the best match. This method has many disadvantages including the necessity for large computing resources in order to process large sequence databases. The current project aims to …

Using Transactional Distance Theory To Explore The Experiences Of Community College Students In Online Developmental Courses, Brian Gerber

Electronic Theses and Dissertations Archive

The number of community college students taking online courses has steadily increased, which includes students enrolling in online developmental courses. Community colleges have largely embraced online learning in order to improve student access, but many difficulties (e.g. low passing rates, high withdrawal rates) have been discovered in the area of online learning. Therefore, the purpose of this qualitative study was to explore the experiences of community college students in online developmental courses. The research question that guided this study was: 1.Using Transactional Distance Theory, what is the experience of community college students in online developmental courses?Data was collected using phenomenological …

Religious Studies Teachers Perceptions Of The Role Of Religious Literacy In Students' Civic Preparation, John Grant

Electronic Theses and Dissertations Archive

The purpose of this study was to investigate the perceptions of teachers of religion courses who use the study of religion to prepare students for the pluralistic society awaiting them. The primary questions addressed in this study were focused on perceptions of religious studies teachers regarding their definition of religious literacy, the content of a religiously literate person, the civic consequences of an education that ignores religious literacy, and how religious literacy might inculcate civic values. The participants of this study included five purposefully selected religious studies teachers from five different school types (i.e., Christian, Islamic, Jewish, nonsectarian, public). These …

Towards Zero Response Time Modified Sensors: Synthesis, Characterization, And Deposition Of Edot-Decorated Porous Nanocapsules And Simulations Of Mass Transport In Polymeric Films On Sensor Surfaces, Bradley Hambly

Electronic Theses and Dissertations Archive

The response time of chemical sensors is a critical performance characteristic that may determine their utility in a variety of applications. The rate-determining step, which controls the response time, can be either mass transport or the rate of a chemical/electrochemical reaction. To optimize the response of membrane-based sensors, we developed voltammetric methods for the determination of diffusion coefficients in polymeric membranes and demonstrated the influence of water and ion transport on the short- and long-term behavior of solid contact ion-selective electrodes (SC-ISEs). SC-ISEs are multi-layer systems with a conductive polymer (CP) film sandwiched between an ion-selective membrane and a base …

On Transcribing Richard Wagners Siegfried Idyll For 21st-Century Wind Ensemble Instrumentation, Brian Edward Hodge

Electronic Theses and Dissertations Archive

This project contains a transcription of Wagners Siegfried Idyll for wind band. The dissertation project includes documentation as to the transcription process, as well as historical references for Richard Wagner and for two previously transcribed contrasting approaches with Lucien Cailliets Elsas Procession to the Cathedral and Micheal Votta/John Byrds adaptation of Trauermusik. A detailed theoretical analysis of the original work is presented to contextualize the transcription process.

Walks And Games On Graphs, Rebekah Herrman

Electronic Theses and Dissertations Archive

Herrman, Rebekah Ph.D. The University of Memphis, May 2020. Walks and Games on Graphs. Major Professor: B\'ela Bollob\'as, Ph.D.Chapter 1 is joint work with Dr. Travis Humble and appears in the journal Physical Review A. In this work, we consider continuous-time quantum walks on dynamic graphs. Continuous-time quantum walks have been well studied on graphs that do not change as a function of time. We offer a mathematical formulation for how to express continuous-time quantum walks on graphs that can change in time, find a universal set of walks that can perform any operation, and use them to simulate basic …

Sing It First: The Pedagogy Of Wycliffe Gordon, Thomas Johnson

Electronic Theses and Dissertations Archive

ABSTRACTJohnson Jr., Thomas E., DMA. The University of Memphis. August 2020. Sing It First: The Pedagogy of Wycliffe Gordon. Major Professor: John Mueller, DMA.This document presents the pedagogical techniques and materials recommended by trombonist Wycliffe Gordon. Gordon is an internationally renowned performer, composer, arranger, and educator. He has recorded twenty-one albums as a leader and eight albums as a co-leader. Gordon has received numerous awards including Trombonist of the Year and Best Trombone from the Jazz Journalists Association and Downbeat Magazine respectively. Gordon is a veteran member of the Wynton Marsalis Septet and the Lincoln Center Jazz Orchestra. He is …

First Destination Survey 2020: For Degrees Awarded December 2019-August 2020, Hart Career Center, Illinois Wesleyan University

First Destination Survey

No abstract provided.

Extremal Graph Theory And Dimension Theory For Partial Orders, David Lewis

Electronic Theses and Dissertations Archive

This dissertation analyses several problems in extremal combinatorics.In Part I, we study the following problem proposed by Barrus, Ferrara, Vandenbussche, and Wenger. Given a graph H and an integer t, what is the minimum number of coloured edges in a t-edge-coloured graph G on n vertices such that G does not contain a rainbow copy of H, but adding a new edge to G in any colour creates a rainbow copy of H? We determine the growth rates of these numbers for almost all graphs H and all t e(H).In Part II, we study dimension theory for finite partial orders. …

Machine Learning Approaches For Biomarker Identification And Subgroup Discovery For Post-Traumatic Stress Disorder, Liangqun Lu

Electronic Theses and Dissertations Archive

Post-traumatic stress disorder (PTSD) is a psychiatric disorder caused by environmental and genetic factors resulting from alterations in genetic variation, epigenetic changes and neuroimaging characteristics. There is a pressing need to identify reliable molecular and physiological biomarkers for accurate diagnosis, prognosis, and treatment, as well to deepen the understanding of PTSD pathophysiology. Machine learning methods are widely used to infer patterns from biological data, identify biomarkers, and make predictions. The objective of this research is to apply machine learning methods for the accurate classification of human diseases from genome-scale datasets, focusing primarily on PTSD.The DoD-funded Systems Biology of PTSD Consortium …