Digital Commons Network^™

An Examination Of The Media's Framing Of The Illegal Street Racing Issue, Kevin Andrew Igasaki Edd

Dissertations

For the last sixty years, the legal community and public policymakers have assumed that illegal street racing has appealed to a single portion of the driving population—young adults driving modified vehicles. However, this assumption has been based solely on anecdotal information and has never been empirically investigated in the literature. To remedy this situation, this mixed methodology study examined whether this narrow framing of the illegal street racing issue was present in two southern California newspapers and two nationally circulated magazines over a three-year time period. Specifically, this study examined the way in which this issue was framed in daily …

Confronting The Intra-Racial Gender Gap: A Quantitative Study Of The Impact Of Gender On African American Students' Perceptions Of Campus Climate At A Predominantly White Institution, Tiffany N. Carpenter Edd

Dissertations

For the last decade, the attainment gap in college graduation rates between Black males and females has continued to grow, despite the best efforts of researchers interested in identifying both its causes and suggesting possible policy remedies. Although much of the work has focused on the search for cognitive differences between African American males and females, there has been little, if any, research on the different ways that Black males and females may perceive their campus climate. In an attempt to broaden the literature in this area, this study examined the perceptions of 366 undergraduate African American students at a …

Culture And Motivation In Online Learning Environments, Frances A. Clem Edd

Dissertations

In the past, instructional design of online learning has largely ignored culture in the creation of online learning environments. Because research in the interaction of culture and online learning is very sparse, an exploratory, blended study was conducted to assess whether there is evidence that one measurable aspect of learners’ culture interacts with the online learning environment in ways that can be observed and identified, and whether this interaction impacts learners’ motivation and behavior in those environments. “Culture” is a complex concept consisting of many interrelated behaviors and values. For this reason, the study focused on one single aspect of …

Asian American Females In Educational Leadership In K-12 Public Schools, Dina Castillo Pacis Edd

Dissertations

The research on educational leadership has largely excluded the perspectives of women and minorities. As school age populations become increasingly diverse, the need for principals from diverse backgrounds also increases. However, the research data shows that females and ethnic minorities are underrepresented in educational leadership positions. In an effort to address the lack of minority females in educational leadership, particularly Asian American females, more research needs to be conducted on their perceived barriers to upward mobility, as well as their perceptions of educational leadership. Only when the voices of Asian American female minority administrators are heard, will they be better …

From Presence To “E-Presence” In Online Nursing Education, Lisa M. Kaiser Phd, Msn, Bsn, Rn

Dissertations

Online web-based course offerings are now common in many institutions of higher education In response to the current and severe nursing shortage, estimated to represent a 20% vacancy rate by the year 2015, (Tarkin, 2003) many more universities have created online nursing courses for registered nurses wishing to continue their education in nursing. The National League for Nursing (NLN) set research priorities that urged exploration of the impact that technology has on the content and nature of teaching and learning in nursing education (1999). Using a series of separate synchronous, online focus groups and 1:1 interviews with nurse educator experts …

Global Citizenship As A Function Of Higher Education: The Demographic And Institutional Determinants In A Graduate Student Population, Jade G. Winn Edd

Dissertations

Over the last twenty years, the explosive growth in information technologies, combined with the globalization and easy access to other cultures, has allowed people to think of themselves more as citizens of the world than of a particular nation. Although the notion of “global citizenship” is often discussed in the popular press, little scholarly attention has been devoted to its measurement. Less attention has been paid to the role higher education plays in creating global citizens. To address these problems, a survey instrument was created to measure three facets of global citizenship: environmentalism, social justice, and civic responsibility, and was …

The Interactive Roles Of Gender And Ethnicity In African-American Women's Mental Health, Dianna Nadine Moses-Nunley

Dissertations

Abstract For African-American women, female gender and African-American (AA) ethnicity combine to create experiences of discrimination, discrimination related stress, and mental health issues that are not encountered by individuals who occupy only one of these status variables. Gender and ethnicity also influence socioeconomic status, an additional variable affecting the experiences and issues that AA women uniquely encounter. The first goal of this study was to examine the ways in which the combined social statuses of gender and ethnicity influence the discriminatory experiences and mental health of AA women. The second goal was to determine the ways in which AA women¿s …

School Counselors' Perceptions About Female Participation In Non-Traditional Secondary Career And Technical Education (Cte) Programs, Rashida Khatoon Malik

Dissertations

The purpose of this study was to examine high school counselors' perceptions of female participation in nontraditional secondary Career and Technical Education (CTE) programs. The data for this study was collected from high school counselors in Michigan by sending them a survey containing 25 items. The first section of the survey covered the demographics of the participants. The second section consisted of eight belief statements about counseling femalestudents into nontraditional CTE programs. The third section of the survey had 12 belief statements about female participation in CTE nontraditional programs. The survey responses were based on five-point Likert scales. The belief …

Hybrid Explicit-Implicit Fdtd-Fem Time-Domain Solver For Electromagnetic Problems, Kakhkhor Abdijalilov

Dissertations

The Finite-Difference Time-Domain (FDTD) method and Finite-Element (FEM) method are numerical techniques used for solving Maxwell's electromagnetic equations. FDTD-FEM hybrid methods opt for combining the advantages of both FDTD and FEM. In this dissertation, signal processing techniques were used to analyze the FDTD stability condition. A procedure, which reduces time-sampling error yet preserves the stability of algorithm is proposed. Both explicit and implicit time-stepping schemes were treated in the framework of the developed method. An improved version of the implicit-explicit FEM-FDTD hybrid method was developed. The new method minimizes reflection from the interface between different types of grids. A class …

Congestion Control In Resilient Packet Ring Networks, Alharbi Fahd

Dissertations

The Resilient Packet Ring (RPR) is a new metro technology; RPR shares SONET's ability in providing fast recovery from link and node failures as well as inherits the cost and simplicity of Ethernet. RPR, like SONET/SDH, is a ring based architecture consisting of two optical rotating rings (uni-directional). In RPR, packets are removed from the ring at the destination so that different segments of the ring can be used at the same time for different flows; as a result, the spatial reuse feature is achieved. Enabling the spatial reuse feature introduces the challenge of guaranteeing fairness among the nodes sharing …

Corrosion Studies On Alpha Tantalum And Beta Tantalum Coated Steel, Sung Min Maeng

Dissertations

Tantalum coating by sputtering, one form of physical vapor deposition (PVD), has been investigated as a replacement for chromium coatings on gun bores to protect them from erosion and corrosion due to its high ductility and high corrosion resistance in aggressive environments. When deposited as a film on steel substrates by sputtering, either α-Ta, β-Ta, or a mixture of both phases have been observed under varying deposition conditions. To evaluate corrosion behavior of Ta coatings, electrochemical impedance spectroscopy and potentiodynamic polarization were conducted as a function of coating thickness. The coating porosity was observed to decrease with increasing coating thickness …

Image Data Hiding, Zhicheng Ni

Dissertations

Image data hiding represents a class of processes used to embed data into cover images.

Robustness is one of the basic requirements for image data hiding. In the first part of this dissertation, 2D and 3D interleaving techniques associated with error-correction-code (ECC) are proposed to significantly improve the robustness of hidden data against burst errors.

In most cases, the cover image cannot be inverted back to the original image after the hidden data are retrieved. In this dissertation, one novel reversible (lossless) data hiding technique is then introduced. This technique is based on the histogram modification, which can embed a …

Live, Virtual, And Constructive Environments For Performance Support, John Michael Lacontora

Dissertations

As military systems become more complex, the operation and support of these systems becomes intrinsically more difficult. The U.S. Army's current procurement process relies on industry to provide embedded training and performance support tools for the systems they produce. These tools are relatively new and in the early stages of development. As yet, they have failed to meet the needs of the technicians that are required to support these complex systems. Current efforts to provide enabling technologies that enhance the capabilities of automotive maintenance technicians are concentrated in three professional communities. First is the Performance Improvement community where work is …

Tide-Influenced Contaminant Transport In Coastal Aquifers, Yong Peng

Dissertations

Coastal aquifers are distinguished from other aquifers because of tidal effects which cause complicated groundwater flow and contaminant transport phenomena in regions immediately adjacent to the coast. This study is designed to address the significance of tidal influence on contaminant transport by focusing on one-dimensional homogeneous coastal aquifers.

This study formulates a conceptual model and corresponding flow and transport equations, analyzes coastal boundary conditions, solves numerically the transport equation, and uses experiments to verify the numerical results.

Results of numerical and experimental studies conclude that tides can have a significant impact on contaminant transport, especially when under unconfined conditions, subject …

Qos Constrained Cellular Ad Hoc Augmented Networks, Chi-Tung Chen

Dissertations

In this dissertation, based on different design criteria, three novel quality of service (QoS) constrained cellular ad hoc augmented network (CAHAN) architectures are proposed for next generation wireless networks. The CAHAN architectures have a hybrid architecture, in which each MT of CDMA cellular networks has ad hoc communication capability. The CAHAN architectures are an evolutionary approach to conventional cellular networks. The proposed architectures have good system scalability and high system reliability.

The first proposed architecture is the QoS constrained minimum-power cellular ad hoc augmented network architecture (QCMP CAHAN). The QCMP CAHAN can find the optimal minimum-power routes under the QoS …

An Optic Fiber Sensor For Partial Discharge Acoustic Detection, Xiaodong Wang

Dissertations

Partial discharge (PD) is a very common problem in operating power transformers and is one of the factors that could lead to failure of power transformers, leading to power outage and expensive repairs. The acoustic wave induced by PD can be measured and used for monitoring, diagnosing, and locating potential failures in power transformers.

The effects of the temperature of the transformer and transformer oil are one of the very important parameters in PD and these effects are investigated in detail. The Fast Fourier Transform (FF1') is used to synthesize the measured data and results show that for periodic PD …

Developmental Processes Critical To The Formation Of Servant Leaders In China, Thomas William Horn

Dissertations

Problem. This study concerns three matters: the leader formation process in general, servant leadership formation in particular, and the application to crossing cultures, with China as the primary context. The central problem of this study revolves around leader formation . What events, experiences, people and other formative processes contributed as critical to the formation of exemplary Christian leaders in China?

Method. The design of this research was a narrative, qualitative study that explored the central phenomenon of leader formation. The researcher was the instrument to collect data through in-depth interviews. This study purposefully selected three exemplary Christian Chinese leaders. The …

Intuitive Decision Making And Leadership Style Among Healthcare Executives In The United States, Cherie Whiting

Dissertations

The purpose of this two-phased, sequential, exploratory, mixed-methods study was to survey a sample of Fellows in the American College of Healthcare Executives in the United States and then interview selected individuals who scored in the highly intuitive category on the intuition survey to explore how they made intuitive decisions. In the first phase, quantitative research questions addressed the relationship between leadership style and the potential to make intuitive decisions, as well as the relationship and interaction between the potential to make intuitive decisions and age, gender, and size of company. In the second phase, qualitative interviews were used to …

The Effect Of Embedded Metacognitive Prompts And Probes On Students’ Awareness In A Multimedia Lesson For Elementary School Students, Wendy Janine Parcel Edd

Dissertations

In a study he called The Effect of Embedded Metacognitive Cues and Probes on Use of Learner Control Features in an On-line Lesson for Elementary Students, Watson (2001) found that minimal prompting by an online tutorial increased 5th grade students’ comprehension of how much they understood. While Watson’s findings demonstrated a significant difference in the ability of prompted and non-prompted students to accurately predict their own performance on posttests, actual scores were not greater than those of control students until the results were analyzed by gender. The purpose of this study was to replicate and extend Watson’s study to determine …

A Descriptive Examination Of Protective Factors: Analysis Of Male Completers Of An Alternative Educational Program, Rona Dominique Roberts

Dissertations

A growing number of students, primarily at the high school level, are being assigned to alternative education programs for behavior management. These students, who engage in risky behaviors, may also come from high-risk environments, suggesting a possible correlation between these two factors that may increase the likelihood of unsuccessful life outcomes. Very little research has been conducted to determine the effectiveness of these programs after completion; however, because of the increasing prevalence of alternative education programs across the nation, questions have emerged as to whether or not students assigned to these programs will continue to engage in at-risk behaviors after …

Representation Of The Elderly In Counselor Education Textbooks, Alicia V. Fahr

Dissertations

The counseling profession requires multicultural competence in meeting the needs of diverse groups. The responsibility for training counseling students to work effectively with the elderly falls upon counselor educators. Textbooks convey cultural values and contribute to what is learned by students. Specifically,textbooks may contribute to how counseling students think about older adults and aging issues. This study was designed to determine how older adults and aging issues are represented in counselor education texts.

The textbooks used most frequently by 11 randomly selected master's degree programs accredited by the Council for Accreditation of Counseling and Related Educational Programs (2001) were identified …

Effect Of Coating Additives On The Rheological And Optical Properties Of Coated Papers, Burak Aksoy

Dissertations

Although additives are used in small amounts (below 2wt.% of the total solids) in a coating formulation, they play an important role in the runnability and end-use performance of the coating. Among coating additives, the use of insolubilizers and fluorescent whitening agents (FWA's) has increased due to theincrease in demand for higher quality graphic papers and packaging. Zirconium containing insolubilizers were studied for their rheological effects on silica ink jet coatings. Both zirconium species had an influence on the theological properties of the coating and its components. The interactions between thezirconium salts and the coating were found to be weak …

Phase Coherent Effects In The Speckle Correlation Of Light Scattered From Volume Disordered Media And Randomly Rough Surfaces, Bogdan Danila

Dissertations

We present a study of the statistics of the intensity patterns produced when coherent light is scattered by random media (volume disorder) or randomly rough surfaces. Such a random, granular interference pattern is called speckle. Particular emphasis is on the statistical correlations arising between thefluctuations of the intensities corresponding to distinct scattering paths; which are quantified by the speckle correlation function. In the first part, we present results for the correlation function computed for volume-disordered media by means of numerical simulation. Our focus is on the sensitivity of the correlationfunction to statistical parameters characterizing the volume distribution of the refraction …

Effectiveness Of Teaching Modalities For Pre-College Level Mathematics Courses, Dorothy Latuszek

Dissertations

College educators are challenged with providing students with choices of teaching modalities that facilitate student achievement and success at a time when students are also seeking flexible scheduling and accommodation of their differing learning styles. This is certainly the case for college students who need to demonstrate proficiency for the content in pre-college level mathematics courses prior to enrolling in college-level mathematics courses. The term "pre-college level" is defined as courses in reading, writing, and mathematics for college students lacking those skills necessary to perform college-levelcoursework at two- or four-year college institutions (Parsad & Lewis, 2003).

Do certain teaching modalities …

Remembering The Mendiola March: Understanding The Role Of Experience And Accounts In The Construction Of History, Megan C. Mullins

Dissertations

This research project investigates the relationship between personal experiences of events and public descriptions of events. Specifically, the researcher develops a case study around a 1987 march and demonstration for land reform in the Philippines. Specifically, this research includes a discourse analysis of published, public accounts as they appeared in a national newspaper and the personal interviewee accounts of the event as remembered by U.S. participants and witnesses. Interviewees were involved in social and political work on hunger and other social justice issues as coordinated with ecumenical groups. The theoretical contributions of symbolic interaction, cultural theory and discursive practices of …

Fumed Metallic Oxides And Conventional Pigments For Glossy Inkjet Paper, Hyunkook Lee

Dissertations

Product development activity in the area of inkjet printing papers has accelerated greatly to meet the rapidly growing market for inkjet papers. Advancements in inkjet printing technology have also placed new demands on the paper substrate due to faster printing rates, greater resolution through increased drop volumes, and colorants added to the ink. To meet these requirements, papermakers are turning to pigmented size press formulations or pigmented coating systems. For inkjet coating applications, both the internal porosity of the pigment particles as well as the packing porosity of the coating affect print quality and dry time. Pores between the pigment …

The Relationship Between Student Characteristics And Success In An Online Business Course At West Shore Community College, Amy J. Wojciechowski

Dissertations

This ex-post facto study was conducted to identify characteristics of successful online students with respect to: (a) gender; (b) age; (c) previous courses completed online; (d) ACT English, Reading, and Composite test score; (e) ASSET Reading and Writing test score; (f) grade point average of student upon completion of the course; (g) withdrawal from previous courses; (h) semester format (16-week vs. 8-week); (i) student status (full-time vs. part-time); and (j) attendance at orientation that will predict success. A small, rural community college in western Michigan participated in the study. The subjects included 179students in an online Introduction to Business course …

Leadership Competency Needs Of U.S. Campus Law Enforcement Administrators, John Nathaniel Vinson

Dissertations

College campus police administrators operate in a complex administrative environment that produces difficult leadership challenges. In order to manage these challenges, police administrators need to possess certain leadership competencies. This study fills a gap in the academic literature by examining the perceptions of campus law enforcement administrators in the United States as to the kinds of leadership challenges they face, and the nature of the leadership competencies needed to manage these challenges. A nationwide survey of college campus police administrators at four-year colleges and universities was conducted to (1) explore their perceptions regarding the major leadership challenges they currently face, …

The Study Of Nontraditional Student Satisfaction With Academic Support Services Offered At Western Michigan University, Natalie Morton

Dissertations

This study examines the impact from the adaptation of lean manufacturing strategies on key external financial performance measures as reported by a number of management accounting methods. The research is not concerned with creating a justification for lean manufacturing strategies but rather it evaluates the inadequacies of standard financial reporting methods to accurately reflect operational improvements possible in the key performance measures through the early stages of a lean program.

ProModel simulation software is used in conjunction with Microsoft Excel and Visual Basic to create a simulated repetitive manufacturing environment and production planning and control system. The study examines the …

Numerical Simulation Of Microwave Heating Of A Target With Temperature Dependent Electrical Properties In A Single-Mode Cavity, Hoa Kien Tran

Dissertations

This dissertation extends the work done by Hue and Kriegsmann in 1998 on microwave heating of a ceramic sample in a single-mode waveguide cavity. In that work, they devised a method combining asymptotic and numerical techniques to speed up the computation of electromagnetic fields inside a high-Q cavity in the presence of low-loss target. In our problem, the dependence of the electrical conductivity on temperature increases the complexity of the problem. Because the electrical conductivity depends on temperature, the electromagnetic fields must be recomputed as the temperature varies. We then solve the coupled heat equation and Maxwell's equations to determine …