Digital Commons Network^™

An Examination Of Teachers’ Beliefs About Critical Reading And Academic Writing, Cindi Davis Harris Edd

Dissertations

The ability to compose a well-written research paper is evidence o f a student's ability to read critically and write academically. However, evidence suggests that many college-bound high school graduates have not learned these skills. While the research literature overwhelmingly supports the notion that teachers are an important factor in students’ academic success, and that in order to be academically successful, students need to have critical reading and writing skills, there has been little research about how teachers' beliefs and knowledge about critical reading and academic writing influence instruction with regard to these skills. This naturalistic case study employed in-depth …

Keeping Safe: Field Public Health Nurses' Perceptions, Karen Nielsen-Menicucci Phd, Ms, Rn, Phn

Dissertations

By the year 2005, there will be an estimated 1.25 million workers involved in providing nursing care to individuals in their homes (Bureau of Labor Statistics, 1997). There is limited empirical data available on the issue of safety of nurses within the context of home visiting or in the public health venue. Recent research on safety in home visiting has focused on home health rather than public health nursing. The purpose of this study was to explore and explain the perception of safety among field public health nurses. A purposive sample of 19 public health nurses employed in an official …

Increasing The Awareness Of Human Resource Development Activities In Small Firms, Hanacho Michael Nmom

Dissertations

Much of what is known today concerning organizational human resource development efforts (those being employee training, education, and development activities) has steadily and favorably come from large firms. Conversely, very little is known about the extent of HRD activities in small firms, especially those with fewer than 300 employees. To correct this imbalance of awareness the primary aim of this study is to delineate the learning activities of four successfulsmall service-oriented firms in Kalamazoo (Michigan) county.

The study sample consists of seven "purposeful informants". A mixed-method case study, employing the quantitative and qualitative fact-finding strategies ofa simple survey questionnaire and …

Increasing Organization Capacity: A Systems Approach Utilizing Transformational And Distributed Leadership Practices, Patricia L. Reeves

Dissertations

The purpose of this study was to test a transformational, systemic change framework designed by the researcher to assist school leaders who are attempting to incorporate the major elements of transformational leadership theory, systems theory, and organizational development theory into their school or school district operations. The study involved both the distillation and organization of the major theoretical elements from the literature into an operational framework for planning, conducting, and monitoring the systemic change process in K-12 school systems. This framework was, then, tested by the researcher for its descriptive power in a case study analysis of an actual school …

Use Of Evaluation Findings In Michigan’S 21St Century Community Learning Center Programs, Wendy L. Tackett

Dissertations

There is a lack of empirical evidence demonstrating the use of evaluation findings within grant programs such as the 21st Century Community Learning Centers programs (CCLCs). This study was designed using Michigan's federally-funded CCLCs to meet the following purposes: to explore the use of evaluation findings; to determine the relationship of the use of evaluation findings by local school administrators to the employment of an internal or external evaluator; to identify evaluator qualifications connected to evaluation use; and to determine whether there are relationships between the Program Evaluation Standards (Joint Committee on Standards for Educational Evaluation, 1994) utility domains and …

Academic Performance, Persistence, And Cultural Congruence Of African American Males Attending Predominantly White Colleges And Universities, Darrell Johnson

Dissertations

The continued lack of success for African American males attending predominantly White colleges and universities is alarming and unsettling. Other racial minority groups are making positive gains relative to their post-secondary educational experiences. However, the African American male lags behind in virtually every index of success in higher education. This trend could produce serious social, economic and cultural implications for the African American community and the entire country.

For African Americans, a strong sense of culture is important to their ability to achieve high levels of mental and psychological functioning, particularly in environments they perceive to be hostile or unwelcoming. …

Health Impacts Of Polychlorinated Biphenyls (Pcbs) In Aquatic Organisms, Marla Ann Fisher

Dissertations

Polychlorinated biphenyls (PCBs) are a major contaminant of global extent in water resources and aquatic biota. Due to its high lipid solubility, PCBs fail to be degraded and, therefore, continue to bioaccumulate throughout the environment and food chain. To determine the impact of PCBs on the immune system ofaged and juvenile Japanese medaka (Oryzias latipes), fish were injected with the coplanar PCB congener 126 and examined after 3 and 14 days. PCB 126 produced oxidative stress in both age groups of fish 14 days post-injection; however, juvenile medaka appeared more susceptible than aged fish. Humoral immunity, as determined by antibody …

A Comparative Study Of Factors Related To Adoption, Management, And Impact Of Police Consolidation And Amalgamation In Norfolk, County, England, And Kent And Ottawa Counties, Michigan, United States, Terry Lee Fisk

Dissertations

The evolution of law enforcement in the United States has created a circumstance where thousands of smaller communities are served by a police agency, some of which may not have the capability or resources to provide adequate police service. Many of these are agencies operate within a geographical area where they are joined by common boundaries, yet each operates as an autonomous police force. One possible solution to this quandary is to consolidate those existing agencies experiencing difficulties in the provision of police services into single, larger departments with combined resources.

The purpose of this research was to determine what …

Using The History Of Research On Sickle-Cell Anemia To Affect Preservice Teachers’ Conceptions Of The Nature Of Science, Eric M. Howe

Dissertations

Preservice elementary teachers enrolled in an elective biology course participated in an eight-class unit of instruction based on the history of research in understanding the disease sickle-cell anemia. Students were introduced to the disease as a “mystery” for them to solve, and subsequently developed an understanding of the disease from several disciplines in biology (e.g., genetics, ecology, evolution, molecular biology). The unit involved open-ended problems in which students examined evidence and developed explanations in a manner analogous to the reasoning used by Anthony C. Allison and his colleagues during the early to middle part of the twentieth century.

Throughout the …

Studies Of Atomic And Molecular Dynamics Using Photoelectron Spectroscopy, Sophie E. Canton

Dissertations

Photoexcitation and photoionization studies of free atoms and molecules in the gas phase provide a unique view into various aspects of radiation-matter interactions that are used as basic building blocks in many branches of physics, such as Solid State, Plasma Physics, Photochemistry or Astrophysics. With the advent of third generation synchrotron light sources delivering high photon flux (>10¹⁵ photons/s) with unprecedented resolving power over a broad energy range, it has become possible to investigate in great detail not only the internal structure of the targets, but also the dynamics of the process. Born in the 1960s,photoelectron spectroscopy specifically …

Chemical And Isotopic Investigation Of Groundwater In Eastern United Arab Emirates (Uae), Ahmed Ali Abdalla Murad

Dissertations

UAE is located at the southeast of Arabian Peninsula. Two main aquifers occupy the study area: the Eastern Gravel Plain and Ophiolite aquifer. Increasing salinity of groundwater and depletion of aquifers are a major concern in the UAE. Previous studies suggest that groundwater, particularly in the Eastern Gravel Plain aquifer, is affected by seawater intrusion and evaporation. Isotopes of oxygen, hydrogen, carbon and chlorine, and chemical analyses were used to investigate this problem in detail. Samples of groundwater from the Eastern Gravel Plain aquifer have R³⁶Cl values in the range of 13.3 to 17.4 x10^-15 while those …

Exploring The Behavioral Function Of Work Monitoring, Don H. Rohn

Dissertations

A number of studies have suggested the key difference between effective and ineffective managers is the extent to which managers engage in a particular form of monitoring - work sampling (Komaki & Minnich, 2002). Effective managers observe employees instead of relying on self-reports or secondary sources of performance. A factor contributing to the effectiveness of work sampling may be an increase in desired behavior as a function of reactivity to the presence of an observer. In spite of the large volume of research on the effects of observer presence on various physiological responses and task performances (Guerin, 1993), a study …

Comparative And Contributive Effects Of Process And Human Performance Improvement Strategies, Joseph R. Sasson

Dissertations

Organizational leaders know that the success of their organization depends on the organization's ability to either produce better products or produce equally good products at a lower cost to consumers. Interventions aimed at improving organizational performance stem from two primary perspectives. One perspective emphasizes changing system factors (e.g., equipment and processes) and the other perspective emphasizes changing human performance factors (e.g., performance specifications and behavioral consequences). The current study evaluated the comparative and contributive effects of process improvement techniques (Kock, 1999; Melan, 1992; Rummler & Brache, 1995) and human performance improvement techniques (Daniels, 1989; Gilbert, 1996; Rummler & Brache, 1995), …

The Theory Of Transpersonal Leadership: A Grounded Theory Study, Christine M. Wallace

Dissertations

This research suggests a new approach to leadership. Using a Glaserian grounded theory methodology, a new process theory of leadership was developed based on the data. These data included 26 interviews and numerous observations of individuals and situations. The result is described as the Theory of Transpersonal Leadership. This theory delves into the internal process that takes place within individuals as they make decisions regarding leadership within their own lives. The theory also includes the explanation of discovered concepts from this research. These concepts include: the Catalytic Confluence, Demand Morphism, and Symbolic Mutualism, which explain the major points within the …

Continuous And Interrupted Exposure Therapy In The Treatment Of Public Speaking Anxiety, Stacey A. Waller

Dissertations

Current research suggests that exposure-based interventions are the treatment of choice for anxiety disorders (Barlow & Wolfe, 1981; Barlow, 1988; 2002; Zinbarg, Barlow, Brown, & Hertz, 1992; Foa, Rothbaum, & Kozak, 1989). While the evidence to date supports the efficacy of these procedures, the precise mechanisms by which they achieve symptom reduction are not yet fully understood. Most theoretical explanations of exposure therapy appeal to the respondent and operant conditioning processes from which the procedure was originally derived. While it is frequently argued that in order to achieve operant and respondent extinction, exposure must be delivered continuously, without interruption (Barlow, …

On The Dynamics And Kinetic Energy Of Axisymmetric And Wavy Taylor-Couette Flows, Javier M. Montefort

Dissertations

An experimental study of axisymmetric and wavy Taylor-Couette flows is presented in this research. The study is conducted to investigate the flowcharacteristics under steady state conditions in axisymmetric and wavy Taylor flows. Additionally, the time-dependent formation of axisymmetric vortices is also experimentally investigated. The radii and aspect ratios of the experimental facility utilized in this research are 0.672 and 20, respectively. The working fluid used during the experiments is water. The experiments were performed within the Taylor numbers range comprised by TC < T < 105 TC . A numerical scheme based on finite differences technique has been developed to validate …

A Multimethodological Study Of Teachers’ Perceptions Of Technology Professional Development, James Brown

Dissertations

Technology has been pressed into the K-12 educational environment for decades, yet studies have revealed that successful implementation in the classroom has been limited. Numerous studies have focused on the issues of technology professional development from the perspectives of leadership, organizational culture, and student learning, but little has focused on the perspectives of teachers.

This multimethodological study was conducted using a concurrent triangulated method. This study combined a 35-question survey administered online, and individual teacher interviews in order to understand teachers' perceptions of issues critical to successful technology professional development. Surveys were administered to teachers in an intermediate school district …

Postpartum Fatigue In The Active Duty Military Woman, Jacqueline D. Rychnovsky Phd

Dissertations

Up to 16,000 military women annually experience the birth of a child. Barring complications, regulations require a return to work 42 days postpartum, making them susceptible to the effects of postpartum fatigue. The purpose of this descriptive, longitudinal study of 109 military women was to describe fatigue levels across the first 6–8 weeks postpartum; to describe the relationship among selected psychological, physiological, and situational variables of fatigue; and to examine the relationship between predictor variables, fatigue levels, and performance after childbirth. The majority of the sample were married or partnered enlisted women in the U.S. Navy with a mean age …

A Study Of The Relationship Between Transformational Leadership And Organizational Culture, Mildred Patricia Howard

Dissertations

The research study examines teachers' perspectives on leadership and Organizational Culture in elementary schools within the state of Michigan. Teachers respond to more than 90 survey questions from the Leadership Practices Inventory and the Instructional Climate Inventory.

The purpose of the study is to determine the relationship that exists between Transformational Leadership and Organizational Culture. The study also considers school size as an interval variable. Statistical tests used to determine possible relationships include F-Tests, T-Test and Canonical Correlations.

Findings suggest that additional studies may be warranted based on particular subscales of Transformational Leadership and also size as it relates to …

The Effect Of A Nurse Practitioner Intervention On Women Referred For Screening Mammography, Susan Renee Carlson Phd

Dissertations

The use of mammography for the early identification of breast cancer when tumors are small and potentially curable has been well documented. Unfortunately, the rates at which women comply with their health care providers' recommendation for screening mammography remain low. Many reasons have been identified for the failure to adhere with this recommendation; pain with procedure, cost, lack of physician recommendation, perceived radiation exposure, and fear of results have been cited. The purpose of this study was to identify the effect of a specific intervention by a nurse practitioner on adherence with screening mammography in a healthy population of women …

Working With Heterosexual Allies On Campus: A Qualitative Exploration Of Experiences Among Lgbt Campus Resource Center Directors, Melissa A. Bullard

Dissertations

The scholarly literature has just recently begun to address the role that heterosexual allies can play in responding to the unique needs and challenges facing LGBT people. As Lesbian, Gay, Bisexual, and Transgender (LGBT) Campus Resource Centers are expanding in number and scope on college and university campuses across the United States, heterosexual allies have increased opportunities to support and advocate for LGBT people. Yet very little is known about what heterosexual allies do, or how their presence and actions impact LGBT people. The purpose of this study is to identify and describe the experiences that LGBT individuals have with …

The Use Of Computer-Based Programmed Instruction As A Supplemental Tool To Train Behavior Analysis Concepts, Jason T. Otto

Dissertations

The objective of this dissertation was to produce effective computer-based programmed instruction modules to serve as supplemental training for an ongoing college seminar in behavior analysis. Computer-based programmed instruction supplemented a checklist of a strategy for diagramming behavioral contingencies in the first study and supplemented difficult textbook material in the other studies. In all, the instruction involved 31 concepts, rules, or objectives. Microsoft ®PowerPoint® and Macromedia Flash(TM) were the authoring tools used to develop these supplemental modules. The modules involved multiple-choice-branching programming, which students completed as homework assignments that were delivered with a compact disk (Studies 1-4) and the World …

Two Perspectives On The Effectiveness Of An Entry-Level Community Rehabilitation Training Program: A Comparison Of Student And Supervisorial Perceptions, Howard D. Twomey Edd

Dissertations

Although a significant amount of attention has focused on the effectiveness of graduate level training programs for rehabilitation counselors, little, if any, research has been devoted to entry-level training programs for Community Rehabilitation Program (CRP) personnel. To remedy this deficiency, this study first developed a survey instrument for both students and their supervisors to measure the change in skills, aptitudes, and attitudes that resulted from participation in a university sponsored training program. After administering the survey to 188 students and 20 supervisors, the perceptions of these two groups were compared and then select demographic measures were used to explain the …

Adaptive Learning For Event Modeling And Pattern Classification, Shuangshuang Dai

Dissertations

It is crucial to detect, characterize and model events of interest in a new propulsion system. As technology advances, the amount of data being generated increases significantly with respect to time. This increase substantially strains our ability to interpret the data at an equivalent rate. It demands efficient methodologies and algorithms in the development of automated event modeling and pattern recognition to detect and characterize events of interest and correlate them to the system performance. The fact that the information required to properly evaluate system performance and health is seldom known in advance further exacerbates this issue.

Event modeling and …

A Micromachined Thermo-Optical Light Modulator Based On Semiconductor-To-Metal Phase Transition, Lijun Jiang

Dissertations

In this research, a micromachined thermo-optical light modulator was realized based on the semiconductor-to-metal phase transition of vanadium dioxide (VO₂) thin film. VO₂ undergoes a reversible phase transition at approximately 68 0C, which is accompanied with drastic changes in its electrical and optical properties. The sharp electrical resistivity change can be as great as five orders. Optically, VO₂ film will switch from a transparent semiconductor phase to a reflective metal phase upon the phase transition. The light modulator in this research exploits this phase transition related optical switching by using surface micromachined low-thermal-mass pixels to achieve …

Virtual Teams Combining Mobile Devices With Web-Based Communication On Group Decision Making, Hyo-Joo Han

Dissertations

Organizations have moved from a face-to-face team environment to a virtual team environment using communication technology during the last decade. More and more workers use asynchronous tools (including email, discussion groups, information sharing tools, and group calendaring systems), and synchronous tools, such as instant messaging and web-based chatting features, to coordinate and share information with people within and outside of organizations. This empirical study on how virtual teams work, integrating mobile devices with web-based group communication for decision-making tasks, examines which technologies and communication modes are the best for distributed group teamwork, and, mainly, what are the predictive characteristics making …

Intercity Travel Demand : A Utility-Consistent Simultaneous Trip Generation And Mode Choice Model, Guilin Li

Dissertations

An intercity travel decision includes a complex set of subdecisions, such as when to travel, where to travel, which mode to choose, and others. The main focus of this dissertation is to examine trip frequency and mode choice of intercity non-business travel.

The objective of this study is to understand intercity travel behavior using disaggregate models. The proposed conceptual framework for intercity travel behavior leads to a nested logit/continuous choice model that is rigorously linked to the utility maximization theory. Compared to a traditional intercity travel demand model, the proposed model is utility consistent in that trip generation and mode …

Effect Of Fullerene Containing Lubricants On Wear Resistance Of Machine Components In Boundary Lubrication, Andriy Titov

Dissertations

Fullerenes, a new form of carbon nanomaterials, possess unique physical and mechanical properties that make their use as additives to liquid lubricants potentially beneficial. The goal of this study was to investigate the effect of fullerene containing lubricants on wear resistance of steel-bronze couples operating under boundary lubrication conditions. A mathematical model of deformed asperity contact was built to calculate real contact area and real contact pressure. Computer controlled wear friction testing methodology and equipment were designed, developed and implemented for obtaining reliable and objective experimental data. In addition, optical and scanning electron microscopy and standard surface texture analysis were …

Migration Of An Intruder Particle In A Boundary Driven Shear Flow, Jian Liu

Dissertations

This study reports on three-dimensional, discrete element simulations of a single large spherical intruder in a Couette shear flow composed of uniform sized particles. The simulation results are useful in providing a numerical reproduction of the experiments for size segregation and mixing. This in turn has a major importance in many industries which are concerned with handling of particles and powders, such as pharmaceutical manufacturing, agriculture, chemical and mineral processing.

Discrete element simulations are carried out using the "soft sphere" model of Walton, et. al., which provides a method for obtaining the information at a macroscopic level from multi-body collisions …

Reactive Modification Of Polyesters And Their Blends, Chen Wan

Dissertations

As part of a broader research effort to investigate the chemical modification of polyesters by reactive processing a low molecular weight (MW) unsaturated polyester (UP) and a higher MW saturated polyester, polyethylene terephthalate (PET), alone or blended with polypropylene (PP) were melt processed in a batch mixer and continuous twin screw extruders. Modification was monitored by on-line rheology and the products were characterized primarily by off-line rheology, morphology and thermal analysis. Efforts were made to establish processing/property relationships and provide an insight of the accompanying structural changes. The overall response of the reactively modified systems was found to be strongly …