Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Dissertations

Discipline
Institution
Keyword
Publication Year
Publication Type
File Type

Articles 10621 - 10650 of 13372

Full-Text Articles in Entire DC Network

Implementing Student Learning Outcomes: The Link To Accreditation In California Community Colleges, Lori Waite Edd May 2004

Implementing Student Learning Outcomes: The Link To Accreditation In California Community Colleges, Lori Waite Edd

Dissertations

As the public demands accountability in higher education, regional accrediting bodies are under pressure from external governmental agencies, as well as from key stakeholders, to demonstrate their effectiveness and more specifically, provide evidence of student learning. All regional accrediting agencies now have incorporated some level of student learning outcomes into their criteria for reaffirmation of accreditation. This case study describes how three California public community colleges are implementing student learning outcomes on their campuses. Administrators, faculty and staff were interviewed about perceptions and insights related to learning outcomes. Artifact analysis was conducted to establish credibility and data triangulation. Findings suggest …


Explicit Writing Instruction: Effects On Sixth Grade Students’ Writing And Reading Achievement, Jennifer Hamby Edd May 2004

Explicit Writing Instruction: Effects On Sixth Grade Students’ Writing And Reading Achievement, Jennifer Hamby Edd

Dissertations

The purpose of this quantitative study was to examine the effect of explicit writing instruction on sixth grade students' writing growth and achievement as measured by holistic and analytic assessment. This research responds directly to the need for additional research on effective reading and writing instruction (Langer & Allington, 1992; The College Board, 2003). The preponderance of research in writing has been devoted to early writing. Less evidence is available to examine the effect of writing instruction at the sixth grade level. Writing samples from 124 sixth grade students at two elementary schools were used in this study. The two …


Examining The Lived Experiences Of Out Gay And Lesbian K-12 Educators, William Dejean Edd May 2004

Examining The Lived Experiences Of Out Gay And Lesbian K-12 Educators, William Dejean Edd

Dissertations

The purpose of this study was to examine the lived experience of gay and lesbian K-12 educators who consider themselves out within the classrooms in which they teach. With gay and lesbian issues receiving increased visibility within the K-12 setting, researchers have begun to examine the experiences of gay and lesbian K-12 educators (Harbeck, 1992; Letts IV & Sears, 1999; Jennings, 1994; Kissen, 1996; Parker, 2001; Sanlo, 1999) within this context. Yet few research studies have specifically examined gay and lesbian educators who consider themselves out in the classroom in which they teach. Five gay male teachers and five lesbian …


Webquest Design Strategies: A Case Study Measuring The Effect Of The Jigsaw Method On Students’ Personal Agency Beliefs, Engagement, And Learning, James P. Frazee Edd May 2004

Webquest Design Strategies: A Case Study Measuring The Effect Of The Jigsaw Method On Students’ Personal Agency Beliefs, Engagement, And Learning, James P. Frazee Edd

Dissertations

The WebQuest model continues to grow in popularity, with teachers from around the world and many teacher-educators and experts in the field of educational technology espousing its potential to extend content knowledge and promote higher level thinking. While the model is well received by teachers and students alike, most evidence of its effectiveness is anecdotal, and there is very little in the way of empirical research on the elements that make an effective WebQuest. Furthermore, rich descriptions of how students interact during a well-developed WebQuest are largely absent from the literature. In short, the WebQuest model suffers from a lack …


Keeping Safe: Field Public Health Nurses' Perceptions, Karen Nielsen-Menicucci Phd, Ms, Rn, Phn Apr 2004

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 Apr 2004

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 …


Use Of Evaluation Findings In Michigan’S 21St Century Community Learning Center Programs, Wendy L. Tackett Apr 2004

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 …


Working With Heterosexual Allies On Campus: A Qualitative Exploration Of Experiences Among Lgbt Campus Resource Center Directors, Melissa A. Bullard Apr 2004

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 …


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 Apr 2004

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 …


Studies Of Atomic And Molecular Dynamics Using Photoelectron Spectroscopy, Sophie E. Canton Apr 2004

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 …


Exploring The Behavioral Function Of Work Monitoring, Don H. Rohn Apr 2004

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 Apr 2004

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), …


Continuous And Interrupted Exposure Therapy In The Treatment Of Public Speaking Anxiety, Stacey A. Waller Apr 2004

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, …


A Multimethodological Study Of Teachers’ Perceptions Of Technology Professional Development, James Brown Apr 2004

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 Apr 2004

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 Apr 2004

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 …


Two Perspectives On The Effectiveness Of An Entry-Level Community Rehabilitation Training Program: A Comparison Of Student And Supervisorial Perceptions, Howard D. Twomey Edd Mar 2004

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 …


The Use Of Computer-Based Programmed Instruction As A Supplemental Tool To Train Behavior Analysis Concepts, Jason T. Otto Mar 2004

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 …


A Micromachined Thermo-Optical Light Modulator Based On Semiconductor-To-Metal Phase Transition, Lijun Jiang Jan 2004

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 Jan 2004

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 Jan 2004

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 …


Oblivious Data Hiding : A Practical Approach, Husrev T. Sencar Jan 2004

Oblivious Data Hiding : A Practical Approach, Husrev T. Sencar

Dissertations

This dissertation presents an in-depth study of oblivious data hiding with the emphasis on quantization based schemes. Three main issues are specifically addressed:

1. Theoretical and practical aspects of embedder-detector design.

2. Performance evaluation, and analysis of performance vs. complexity tradeoffs.

3. Some application specific implementations.

A communications framework based on channel adaptive encoding and channel independent decoding is proposed and interpreted in terms of oblivious data hiding problem. The duality between the suggested encoding-decoding scheme and practical embedding-detection schemes are examined. With this perspective, a formal treatment of the "processing" employed in quantization based hiding methods is presented. In …


Ip-Based Virtual Private Networks And Proportional Quality Of Service Differentiation, Jingdi Zeng Jan 2004

Ip-Based Virtual Private Networks And Proportional Quality Of Service Differentiation, Jingdi Zeng

Dissertations

IP-based virtual private networks (VPNs) have the potential of delivering cost-effective, secure, and private network-like services. Having surveyed current enabling techniques, an overall picture of IP VPN implementations is presented.

In order to provision the equivalent quality of service (QoS) of legacy connection-oriented layer 2 VPNs (e.g., Frame Relay and ATM), IP VPNs have to overcome the intrinsically best effort characteristics of the Internet. Subsequently, a hierarchical QoS guarantee framework for IP VPNs is proposed, stitching together development progresses from recent research and engineering work.

To differentiate IP VPN QoS, the proportional QoS differentiation model, whose QoS specification granularity compromises …


High Resolution Solar Observations In The Context Of Space Weather Prediction, Guo Yang Jan 2004

High Resolution Solar Observations In The Context Of Space Weather Prediction, Guo Yang

Dissertations

Space weather has a great impact on the Earth and human life. It is important to study and monitor active regions on the solar surface and ultimately to predict space weather based on the Sun's activity. In this study, a system that uses the full power of speckle masking imaging by parallel processing to obtain high-spatial resolution images of the solar surface in near real-time has been developed and built. The application of this system greatly improves the ability to monitor the evolution of solar active regions and to predict the adverse effects of space weather. The data obtained by …


The Impacts Of Delphi Communication Structure On Small And Medium Sized Asynchronous Virtual Teams, Hee-Kyung Cho Jan 2004

The Impacts Of Delphi Communication Structure On Small And Medium Sized Asynchronous Virtual Teams, Hee-Kyung Cho

Dissertations

The improvement of Internet technology has motivated distributed work groups to collaborate without meeting face to face. Although asynchronous meetings through Web-based group communications systems enable groups dispersed temporarily and geographically to collaborate more flexibly, parallel and non-linear communication among dispersed members also challenge effective and efficient group coordination. Moreover, the Web-based asynchronous meeting is distinguished not only from the face-to-face meeting but also from the synchronous computer-supported meeting in terms of coordination process. However, previous asynchronous group communications or virtual team research focused more on the comparison of this new type of meeting with the face-to-face meeting. Not many …


A Conceptual Framework For Using Feedback Control Within Adaptive Traffic Control Systems, Renu Chhonkar Jan 2004

A Conceptual Framework For Using Feedback Control Within Adaptive Traffic Control Systems, Renu Chhonkar

Dissertations

Existing adaptive traffic control strategies lack an effective evaluation procedure to check the performance of the control plan after implementation. In the absence of an effective evaluation procedure, errors introduced in the system such as inaccurate estimates of arrival flows, are carried forward in time and reduce the efficiency of the traffic flow algorithms as they assess prevalent traffic conditions. It is evident that the feed-forward nature of these systems cannot accurately update the estimated quantities, especially during oversaturated conditions.

This research is an attempt to develop a conceptual framework for the application of feedback control within the basic operation …


Statistical Study Of Solar Radio Bursts, Gelu-Marius Nita Jan 2004

Statistical Study Of Solar Radio Bursts, Gelu-Marius Nita

Dissertations

The peak flux distribution of 40 years of solar radio burst data recorded by NOAA, as a function of frequency and time over a wide range of frequencies, was investigated to quantify the potential impact of radio bursts on wireless systems. Tables of fit parameters, which can be used to find burst occurrence rates in a number of frequency ranges, are presented. The typical power-law index of number density distribution, -1.8, is similar to that found in many hard X-ray studies. Significant changes were found in power-law index with frequency. The results may be useful for designers of current and …


Leaders' Influence On School Reculturing: A Case Study Of An International School, Brian C. Matthews Edd Jan 2004

Leaders' Influence On School Reculturing: A Case Study Of An International School, Brian C. Matthews Edd

Dissertations

Organizational theorists and even practitioners are beginning to use the construct of organizational culture to analyze and characterize the complexities and challenges of organizational life. The construct has been used to metaphorize, frame, interpret, and understand various aspects of organizational life, including leadership and the change process. The literature indicates that leaders can influence an organization by attending to its cultural dimensions. Much of this literature, however, is theoretical and speculative, and the empirical work has focused, for the most part, on business. The overarching purpose of this qualitative study was to enrich understanding of the culture construct and its …


Perceptions Of Board Effectiveness In Selected Institutions Of Higher Education In Zimbabwe, Bonginkosi Zvandasara Jan 2004

Perceptions Of Board Effectiveness In Selected Institutions Of Higher Education In Zimbabwe, Bonginkosi Zvandasara

Dissertations

Problem

The purpose of this study was to identify the level of board effectiveness in selected private and public universities in Zimbabwe as perceived by board members. Also, the study sought to determine the influence of such demographic variables as age, education level, and years of service on the seven factors of university functioning: institutional mission, institutional planning, physical plant, financial management, board membership, board organization and performance, and board/vice chancellor relations.

Method

The survey method was used to collect data. Respondents were asked to complete a 47-item questionnaire and indicate their level of agreement on each of the questions …


An Examination Of Cross-Cultural Understanding In A Global Automotive Company, A. Dale Phillips Jan 2004

An Examination Of Cross-Cultural Understanding In A Global Automotive Company, A. Dale Phillips

Dissertations

Purpose of the Study

Global Motors o f the United States and Baumgart AG of Germany came together to produce an automobile that was marketable in both countries. Since this project involved people from two cultures, the purpose of this study was to examine perceived cultural markers at work during this joint vehicle development project by identifying these markers and investigating their effects on the overall success of the joint-venture project.

Methodology

I chose to use a qualitative methodology, specifically focus groups. All engineers who worked on the project team received an email inviting them to participate and assuring them …