Digital Commons Network^™

Visual-Related Factors In Mobile Iconic Communication, Mohammed Hamad Alsuwailem

Dissertations

The purpose of this exploratory, sequential, mixed methods design research was to explore current design trends and patterns in mobile application icons by analyzing existing icon elements and principles of design. The process of data collection and data analyses went through three main phases: (a) identify current characteristics and pattern design of existing icons, (b) compare mobile icons across selected application categories to underline how each category was different from the other regarding elements and principles of design used, and (c) explore users’ perceptions about the elements and principles of design and account for how these elements and principles influenced …

Narrating Transitions: Experiences Of Individuals And Couples Regarding Relocation Into Assisted Living Communities, John Scott Branson

Dissertations

The purpose of this qualitative study was to better understand the experiences of older adults regarding the process of transitioning into assisted living facilities. A constructivist epistemology, narrative methodology, purposeful sampling, and dialogic performance analysis were used to generate the final representations. Data for the study were collected through transcribed video and audio-recorded interviews, member checks, and researcher journals. Data analysis involved recursive movement between written transcripts, video recordings, researcher journals, and cultural contexts. The initial outcome of this this study was a written narrative that interweaves data analysis with narratives of gaining access, sampling, conducting interviews, and member checking. …

Unveiling Leadership Giftedness: Identifying Its Attributes And Significance For Children With Promise, Theresa Yvonne Newsom

Dissertations

Leadership giftedness continues to be the hidden dimension in gifted and talented education. There are numerous definitions, a lack of clarity for identifying leadership giftedness and an unfulfilled federal mandate for programming. Yet, leadership continues to be a hidden dimension in gifted and talented education, especially for children with promise who are sometimes identified as at-risk. With a nation’s need for the development of future leaders, this study used phenomenology to conduct interviews with eight individuals to better understand their insights and experiences with leadership as they faced and overcame adversity in their childhood or youth. By conducting open-ended interviews …

First Person Perceptions On Intelligence, Cognition, And Sensory Processing In Autism, Marlo Payne Thurman

Dissertations

In this study, beginning with a comprehensive review of the evidence-based literature, I employed a qualitative, grounded theory methodology, interpreted within Social Constructivism to explore the perceptions of 17 adults with autism spectrum disorders for their thoughts on the topics of intelligence, cognition, and sensory processing. Using a three-stage coding procedure, I arrived at 52 initial categories that narrowed and condensed into one foundational category and five primary categories supported by a number of secondary categories. Then, using the five categories of sensory, focus, memory, cognitive, and social, I arrived at a Theory of Sensory-Cognitive Difference that I believe to …

Saudi Teachers’ Experiences And Attitudes Toward Integrating Video Games For Learning: Affordances And Constraints Of Using Video Games In Saudi Arabian Classrooms, Mohammed Awad Alqurashi

Dissertations

The effectiveness of integrating educational video games into classrooms depends on teachers’ attitudes toward video games. This descriptive study investigates Saudi teachers’ experiences playing video games and their attitudes about integrating video games into their classrooms in Saudi Arabia. A total of 930 Saudi teachers completed an electronic survey developed by the researcher. Overall, the results of this study showed Saudi teachers’ attitudes toward video games were fairly positive despite a low level of play. Analysis found a relationship between teachers’ philosophy of teaching and their perspectives toward using video games in their classroom for learning. A moderate negative correlation …

The Relationship Of Communication Styles Of Millennial Employees With The Communication Satisfaction And Perceptions Of Communicator Competence Of Their Supervisors, Edward R. De La Torre

Dissertations

Each generation in the workplace shares characteristics that distinguish them from the generations before them. These differences in personality, behavior, and attitudes can result in intergenerational conflict, and these dynamics were identified by researchers when describing the interaction between young Millennial workers and their supervisors of the older generations. However, research did not explicitly test if these differences extend to the different communication styles that people exhibited in their verbal interactions. One such communication style paradigm, the Mok’s Communication Styles Survey (MCSS), describes the actual communication style of an individual, and was used to see if Millennials communicated differently than …

Applying Active Learning Strategy To The Teaching Of History Within A Multigenerational Community College Classroom, Zachary John Zweigle

Dissertations

Community colleges nationwide struggle with retention and completion of students. The role of two-year institutions is further complicated by the multigenerational diversity of learners. Community college instructors should be prepared to educate students ranging from the traditional-age digital native to a life-long learner 80 or more years in age. Creating a learning environment inclusive of generational learners is central to the mission of the community college. This quantitative study was grounded in two theoretical frameworks. First, Bandura’s (1986) social cognitive learning theory provided an understanding for student learning in the social environment. Second, Schön’s (1973) organizational learning theory provided an …

Promoting And Selecting Culturally Relevant Teaching Materials And Pedagogy In Our Schools, Ebony R. Davis

Dissertations

In the twenty-first century, African American males continue to be negatively defined in society, in the media, and by educators. These males face many challenges in their educational careers. Hence, this study explored two African American male students and their perception of contributing factors that motivate them to succeed academically. The study was also focused on their perceptions of their relationship with key influencers that help them to succeed academically. The study consisted of an analysis of their perception about teacher quality, student behavior, and parental involvement. In fact, study results showed how these African American male students maintain a …

Examining Teachers' Perceptions Of The United States Social Class System, Tracy M. Stevenson-Olson

Dissertations

As the number of school aged children living in poverty increases, the inherent inequities within the United States class system continue to grow. Teacher perceptions regarding the United States social class system are examined through focus group interviews with four teachers in an urban high school. A critical qualitative methodology was used to explore how the participants make sense of the complex social class system and how they perceive the impact of social class within the school context. The findings include two overarching themes that influenced these teachers’ perceptions and interpretations of social class; their own personal narrative /identity construction …

Moving To A District Balanced Literacy Program: A Change Leadership Plan, Cynthia A. Marks, Carol A. Benda

Dissertations

Based upon the requirements of the No Child Left Behind mandate, schools that failed to achieve the Annual Yearly Progress (AYP) designation for two consecutive years were required to implement a comprehensive school reform model. This change plan examined the movement from the comprehensive school reform model Success For All (SFA) to a balanced literacy framework within Harmony District 841. The framework advocated for balanced literacy instruction that supported the integration of authentic reading and writing experiences, application of literacy strategies and skills, implementation of a culturally relevant text, focus on professional development for teachers, and provision for effective instructional …

To Promote Or Not To Promote: An Inquiry Into The Experiences Of Female Police Officers And Their Decisions To Pursue Promotion, Kristin Poleski

Dissertations

Despite an increase in the number of female police officers in U.S. police agencies, female representation in supervisory (sergeant and lieutenant) and command (captain, assistant chief and chief) positions in most agencies is limited. This research study focuses on the promotional aspirations as an explanation of limited female representation with attention to the decision-making criteria female police officers use when deciding to participate in the promotional process. This study also examines the institutional, political, organizational structures, and/or personal factors which may impact the female police officers’ decisions to participate in the promotion process. And, this study examines a factor mentioned …

The Rwandan Diaspora In Canada And The United States: Reconciliation And Justice, Jennifer J. Marson

Dissertations

This dissertation analyzed the attempts at achieving justice and reconciliation among the Rwandan diaspora located in Canada and the United States. Following the 1994 Rwandan genocide, many Rwandans fled and a modest diaspora found a home in various locations throughout Canada and the United States. The diaspora, located thousands of miles from the institutional mechanism of justice and reconciliation in Rwanda, are subject to many of the same concerns regarding justice and reconciliation as those who remain in Rwanda. This research focused primarily on how this specific diaspora attempted to achieve justice and reconciliation, if institutional mechanisms (gacaca) in Rwanda …

Preservice Science Teachers’ Pedagogical Content Knowledge For Nature Of Science And Nature Of Scientific Inquiry: A Successful Case Study, Gunkut Mesci

Dissertations

The purpose of this dissertation project is to explore preservice science teachers’ development of pedagogical content knowledge (PCK) for targeted aspects of nature of science (NOS) and nature of scientific inquiry (NOSI). Through multiple data sources, it is examined how preservice science teachers’ understanding of NOS and NOSI have changed over the program, and manifests itself in their classroom practice. This is an exploratory multiple case study of participants’ experiences and developments during a teacher development program. Data is collected in the form of open-ended surveys, interviews, observations, lesson plans, video materials, and teaching documents. After all data is collected, …

A First-Year Implementation Of Mindquest21, A Project-Based Paradigm Shift To Deeper Learning: A Program Evaluation, Deborah R. Esparza

Dissertations

This program evaluation examines MindQuest21, a project-based learning (PBL) model that was implemented in a Chicago, Illinois suburban community. It began with a summer institute experience with a group of approximately seventy teachers in grades kindergarten through fifth grade. These teachers volunteered to attend a four-day MindQuest21 professional development seminar where they actively participated in a facilitated PBL model of instruction and collaborated on the development of PBL units within their district. A pre-post survey was used to compare teacher confidence increases and PBL understanding after the summer institute. This was followed by teacher interviews, follow-up sessions, classroom visits, and …

Capitalism, Social Institutions, And Pathways To Crime: Reconstructing Institutional Anomie Theory, Amanda Marie Smith

Dissertations

Messner and Rosenfeld (1994; 2013) developed the Institutional Anomie Theory (IAT) as an explanation for the high rates of serious crime in the United States. They theorize that high serious crime rates are the result of a culture that values material gain as the primary goal (i.e., the American Dream) with a weak social institutional structure. This study argues that IAT must be reconstructed because Messner and Rosenfeld: (1) discount religion as a social institution of importance, (2) exclude high inequality as a source of structural blockages, and (3) use the concept of the American Dream as a proxy for …

Can You Help Me Now?: The Effects Of Cell Phone Use On Social Capital Formation In A Group Setting, Simon J. Purdy

Dissertations

This study examines the cause and effect relationship between the use of cell phones, which are the widest spread communication technology in the modern day, and the formation of social capital which occurs among members of small groups. Previous research into the effects of cell phone use has primarily focused on individual-level effects, such as texting while driving, leaving a gap in our understanding of the technology’s larger social implications. One social process that cell phones may affect is social capital, or the networks of assistance which exist in our lives, and the associated norms of trust and reciprocity therein. …

The Influence Of Racial Socialization On The Academic Achievement Of Black College Students, Vanessa R. Laurent

Dissertations

Black college students continue to have difficulties reaching academic success in various domains; however, understanding the nature of how academic success is cultivated by Black college students is vital for counselors, educators, and university administrators. The objective of the study was to understand how racial socialization influenced academic success. Research suggests that racial socialization contributes to positive long-term outcomes among African Americans and may be connected to academic achievement (Bowman & Howard, 1985; Boykin & Tom, 1985; Davis & Stevenson, 2006; Neblett, Terzian, & Harriott, 2010; Stevenson, 1994, 1995). Participants were 349 Black college students from a predominately White institution …

Using Postfeedback Delays To Reduce Racing In Online Learning, Anna L. Conard

Dissertations

Computer-based instruction (CBI) has become an increasingly popular tool in both business and education throughout the last decade. Despite the various benefits of using CBI, there are several challenges that accompany this mode of instruction, such as computer-based racing. Computer-based racing occurs when learners respond so quickly that frequent mistakes are made. The purpose of the current study was to investigate the impact of postfeedback delays on racing through online lessons conducted in uncontrolled settings. Six different computer-based instructional formats were assessed in terms of learner performance and satisfaction using a between-group pretest-posttest design. Statistically significant differences were observed in …

Students Engaged In A Learn And Earn Program: Exploring Characteristics That Identify Those Interested In A Career In Manufacturing, Amy M. Koning

Dissertations

The 2008 recession proved to be difficult for the manufacturing industry. As a result, strategies for succession and talent attraction are now important for the resurgence of the industry. The purpose of this study was to describe and interpret how community college students, preparing for entry-level technician positions in manufacturing, experience a “learn and earn” industry and education partnership. For this study, “learn and earn” can be defined as students enrolled full-time in an associate degree program while working at a company that is sponsoring a full ride scholarship for their education.

Past studies have focused on (a) preparing young …

On Greening Optical Access Networks, Mina Taheri Hosseinabadi

Dissertations

With the remarkable growth of fiber-based services, the number of FTTx subscribers has been dramatically increasing in recent years. Owing to the environmental concern, reducing energy consumption of optical access networks has become an important issue for network designers. In Ethernet passive optical network (EPON), the optical line terminal (OLT) located at the central office broadcasts the downstream traffic to all optical network units (ONUs), each of which checks all arrival downstream packets to obtain those destined to itself. Since traffic of ONUs changes dynamically, properly defining the sleep mode for idle ONUs can potentially save a significant amount of …

Studies On Purification And Functionalization Of Carbon Nanotubes And Their Aqueous Phase Behavior, Zheqiong Wu

Dissertations

Carbon nanotubes (CNTs) are known to have unique mechanical, thermal and electrical properties which make them attractive for a wide range of applications ranging from batteries to sensors. CNTs are rolled up graphene sheets where the single-walled CNTs (SWCNTs) and multi-walled CNTs (MWCNTs) are classified according to the number of concentric rings. In this dissertation, the focus is on several different aspects of MWCNTs. These include purification, functionalization and colloidal behavior.

MWCNTs are insoluble in solvents and therefore some degree of functionalization is required prior to their real-world applications. Oxidation debris is generated during carboxylation which is usually the first …

Mediating Chance Encounters Through Opportunistic Social Matching, Julia M. Mayer

Dissertations

Chance encounters, the unintended meeting between people unfamiliar with each other, serve as an important social lubricant helping people to create new social ties, such as making new friends or finding an activity, study or collaboration partner. Unfortunately, social barriers often prevent chance encounters in environments where people do not know each other and people have to rely on serendipity to meet or be introduced to interesting people around them. Little is known about the underlying dynamics of chance encounters and how systems could utilize contextual data to mediate chance encounters. This dissertation addresses this gap in research literature by …

Cloud-Aided Wireless Systems: Communications And Radar Applications, Shahrouz Khalili

Dissertations

This dissertation focuses on cloud-assisted radio technologies for communication, including mobile cloud computing and Cloud Radio Access Network (C-RAN), and for radar systems.

This dissertation first concentrates on cloud-aided communications. Mobile cloud computing, which allows mobile users to run computationally heavy applications on battery limited devices, such as cell phones, is considered initially. Mobile cloud computing enables the offloading of computation-intensive applications from a mobile device to a cloud processor via a wireless interface. The interplay between offloading decisions at the application layer and physical-layer parameters, which determine the energy and latency associated with the mobile-cloud communication, motivates the inter-layer …

Custom Engineered Nanomaterials For Energetics And Energy Applications, Ani Abraham

Dissertations

Recent interest in reactive material has shifted to more custom formulations targeting specific applications. In this work, preparation and characterization of nanomaterials used for several energetics and energy applications are addressed.

The main challenge of this effort is to design and prepare nanomaterials which have significant improvements associated with combustion dynamics, reaction rates, sensitivity, biocidal effectiveness, moisture stability, and are environmentally safer over the existing energetics. Nanomaterials that are used to defeat stockpiles of chemical and biological weapons, modify ionosphere properties for transmission of optical and radio signals, and for energy storage are prepared under room or cryogenic temperatures via …

Using A Knowledge Management Approach To Support Effective Succession Planning In The Civil Service, Mary O’Donohue

Dissertations

The modern workforce is highly mobile. The challenge facing organisations is how to safeguard key expertise and knowledge in the face of staff mobility and turnover. The Irish Civil Service is still recovering from the impacts of significant loss of staff, and their knowledge and expertise, as a result of cutbacks over recent years. This project will establish the potential of using a Knowledge Management approach to support effective succession planning in the Civil Service. The literature review charts the evolution of Knowledge Management from when the phrase was first coined in 1986 through to what is considered to be …

The Correlation Between Emotional Intelligence And Decision Making Among Military Police Officers, Ricardo H. Miranda

Dissertations

The purpose of this quantitative study was to examine the correlation between emotional intelligence and decisions made among Army military police officers. In addition, its purpose was to examine the degree to which emotional intelligence influenced the decisions made by Army military police officers. Finally, the purpose was to explore whether emotional intelligence has any effect on problem solving.

The Lived Experience Of Urban Plus-Sized Black Women In A Midwestern City, Jolene Johnson Lynn

Dissertations

ABSTRACT Obesity among adults in the United States is a significant problem of growing proportions. Black women have a higher rate of obesity than other women but there is a paucity of research about the experiences and perspectives of plus-sized Black women. The purpose of this phenomenological study was to explore the experience of plus-sized Black women living in an urban area. Ten participants were interviewed guided by open-ended interview questions. All interviews were audiotaped and transcribed verbatim. Colaizzi’s (1978) phenomenological method was used to identify themes within the data. Data analysis resulted in three themes: the meaning of plus-size, …

Introducing Classroom Labeling As An Innovative Method To Inform Educational Practice, Roberta Lynn Crawford

Dissertations

In-service seminars and one-shot workshops are the primary methods used for the on-going professional development of instructors, but these methods have been shown to be ineffective and an inadequate way to provide teacher training (Winton & McCollum, 2008). Classroom labeling is proposed as a way of providing knowledge utilization and an alternative to in-service education for preschool teachers by intentionally applying layers of information directly to the learning environment through visual displays, usually in the form of posters. Instructional exhibits typically have only been used to enhance the learning experience of the children. Through the use of classroom labeling, adult …

The Role Of Money And Endorsements In Same-Sex Marriage Ballot Initiatives, Jessica Lorraine Loyet Gracey

Dissertations

This research examines how well certain theories of direct democracy explain outcomes of ballot measures on gay marriage bans. Most theories of direct democracy focus on the types of issues that are quite dissimilar from gay marriage bans. Therefore these theories will likely not do a good job of explaining the results of these elections. In particular I examine the role of campaign spending and elite endorsements in campaigns for gay marriage ban ballot initiatives. In candidate elections, voters commonly use heuristics such as party labels and past performance to help them decide. In most ballot initiative contests voters rely …

Examining The Barriers And Facilitators Of Breastfeeding Duration Among Active-Duty Military Mothers, Andrea Lynn Farwell

Dissertations

Abstract Objective: To describe breastfeeding duration, as well as barriers and facilitators experienced, by active-duty women in the United States military. Design: A cross-sectional design guided the study. Setting: The setting was a social media site offering breastfeeding education and support for military mothers. Participants: The sample included 292 mothers who reported having a baby, initiating breastfeeding postpartum, and returning to work while serving active-duty in the United States within the last five years. Methods: An investigator-designed Qualtrics survey with multiple choice, Likert, and open-ended questions was used. Analysis procedures focused on descriptive statistics, chi-square, and logistic regression. Content analysis …