Digital Commons Network^™

Women's Experiences With Chronic Heart Failure, Denise M. Boren Phd, Msn, Cns

Dissertations

Nationwide, approximately 4.1 million Americans suffer from chronic heart failure accounting for estimated direct and indirect costs of over $21 billion spent annually for health care. The incidence of heart failure has doubled each decade since the 1940's and slightly more men were inflicted with the illness. This trend changed three years ago, with a decline in the overall incidence of heart failure and a slight predominance of the illness in women rather than men. The incidence of this condition was reduced in males nearly three times that of females. Women survive longer after diagnosis, however they are hospitalized more, …

Therapeutic Alliance: Development, Evaluation, And Application Of The Kim Alliance Scale, Son Chae Kim Phd, Msn, Fnp, Rn

Dissertations

The quality of therapeutic alliance between the patient and healthcare provider is a pivotal contributing factor toward optimal healthcare in the current context of rising healthcare costs, shorter hospital stays, and patient's rights. The availability of a well-designed and sound therapeutic alliance instrument can provide understanding and insight into improving the quality of healthcare. The purpose of this study was to develop a reliable and valid therapeutic alliance instrument, to evaluate its psychometric properties, and to explore its usefulness in predicting patient satisfaction. The retroductive triangulation method provided a framework for the development of the instrument, the Kim Alliance Scale …

Understanding The Relationships Among Counseling Self-Efficacy, Anxiety, Developmental Level, Coursework, Experience, And Counselor Performance, Catherine E. Kocarek

Dissertations

Bandura’s (1977, 1982) Self-Efficacy Theory and later Social Cognitive Theory (1986) provided the theoretical framework for understanding counselor self-efficacy (CSE). Bandura’s theory has been utilized in many different areas; however, in this study the focus was counselor self-efficacy (CSE) and its importance to counselor training. Variables within the CSE literature such as anxiety, trainee developmental level, amount of training, counseling experience, and counselor performance were identified. The first purpose of this study was to use the first five variables to predict their influences on counselor performance. The second purpose was to examine two variables, CSE and developmental level, at three …

Effects Of Software Use On The Preparation Of The Individualized Education Programs (Iep’S), Nancy Ann Beukema

Dissertations

Special educators are required to process paperwork mandated by federal regulations for students with special needs. The Individuals with Disabilities Act of 1997 (IDEA ’97, Public Law 105-17) requires the evaluation of students with special needs occur as frequently as their non-disabled peers. An annual review is also mandated for each student’s individualized educational program (IEP), in order to reevaluate the future goals and objectives of the IEPs. A student identified as needing special education services is one who needs specially designed instruction and this instruction must meet the specific individual needs of that student. IDEA ‘97 mandates the need …

New Teachers’ Perceptions Of Discipline-Related School Problems And Teacher Satisfaction, Amy L. Kavanaugh

Dissertations

Satisfaction The public is concerned with school safety because of recent school shootings resulting in multiple deaths. Educators are concerned that perceptions of school safety may affect new teacher attrition.

Three questions were examined in this study: (1) What is the trend of new teachers’ perceptions of discipline-related school problems? (2) Do new teachers’ perceptions of school problems vary by teacher gender, school level, size, location, and percentage of minority students?, and (3) Are new teachers’ perceptions of school problems related to their professional satisfaction?

National data gathered by the National Center for Education Statistics through the Schools and Staffing …

Utopia Park, Utopian Church: James K. Humphrey And The Emergence Of The Sabbath-Day Adventists, Romauld C. Jones

Dissertations

James K. Humphrey was a Baptist minister who joined the Seventh-day Adventist Church shortly after migrating to the United States from Jamaica at the turn of the twentieth century. A leader of uncommon skill and charisma, Humphrey ministered in Harlem, New York, during the period the area became the Black capital of the United States, leading his congregation to a position of primacy in the Greater New York Conference of Seventh-day Adventists. Yet Humphrey believed that the African American experience in Adventism was one of disenfranchisement, a problem he attempted to ameliorate with the establishment of the Utopia Park Benevolent …

Sepsis Bundle Completion, Jenna Churnock

Dissertations

Background: Sepsis is a serious condition resulting in end organ damage and ultimately, death. Communication techniques for nurses and physicians on septic patients admitted to the hospital from the emergency department was evaluated. Paper communication was used in 2020 to facilitate serum diagnostic acquisition and antibiotic administration (i.e., sepsis bundle), but an electronic communication form was utilized in 2021.

Method: An observational, descriptive design utilizing a medical record review was completed to compare the same time-period in 2020 and 2021. Communication methods for sepsis bundle completion were compared.

Results: A total of 100 medical records were reviewed (N …

The Relative Importance Of Academic Achievement In Determining The Self-Esteem Of Students In Rural British Columbia: An Empirical Examination Of Students In Grades 6, 8, 10 And 12, Scott E. Bergstrome Edd

Dissertations

As school systems across North America struggle to redefine themselves, educators everywhere are seeking a balance between academic achievement and the human and social needs of their students. The purpose of this correlational study was to quantitatively assess the construct of the school experience, as determined by academic achievement, as measured by GPA, and the level of involvement in school activities, from the perspective of four measures of student self-esteem. Data were collected from 263 students in grades 6, 8, 10, and 12 in a small district in southwestern Canada. The first part of this study explored the relationship between …

The Role Of A Middle School Assistant Principal In Establishing And Maintaining Positive School Climate, Charles R. Girvin Iii Edd

Dissertations

Organizational theorists have for over 50 years used the concept of organizational climate to study and describe the effects of environment on the attitudes and behaviors of individual members and subgroups within organizations. Within the school setting, researchers and practitioners have increasingly used the concept of organizational climate to evaluate school effectiveness, particularly in middle schools where school climate plays a central role in middle school strategies and philosophies. Though extensive research has examined the relationship between climate and leadership in business, industry, and government, relatively few studies have eyed the linkages between school climate and leadership within the school …

A Study Of Emergent Leadership Factors In A Total Ministry Model, David C. Meyers

Dissertations

This study generalized emergent leadership research to the unstudied population of Total Ministry parishes in the Episcopal Church. The research population was 75 small congregations who chose parish members as their liturgical and pastoral leaders. A survey was designed to distinguish more satisfied from less satisfied parishes in areas of worship, climate, and pastoral care. Each group was given a questionnaire with 29 emergent leadership factors. It was hypothesized that more satisfied parishes would match the constructs of emergent leadership to a higher degree. A T-test was used to compare scores. Results were very strong in pastoral care and climate, …

The Politicization Of Ethnicity As A Prelude To Ethnopolitical Conflict: Croatia And Serbia In Former Yugoslavia, Agneza Bozic-Roberson

Dissertations

This interdisciplinary research develops a framework or a model for the study of the politicization of ethnicity, a process that transforms peaceful ethnic conflict into violent inter-ethnic conflict. The hypothesis investigated in this study is that the ethnopolitical conflict that led to the break up of former Yugoslavia was the result of deliberate politicization of ethnicity. The model consists o f three variables— ethnic entrepreneurs as actors, and mass media and political rhetoric as their tools for politicization of ethnicity. Ethnic entrepreneurs, with a conscious interest in mobilizing ethnicity, are given this opportunity in transitional societies in which politicized ethnicity …

Aging Beauty: The Adaptive Reconstruction Of The Aging Process In Women, Sheila Marie Bluhm

Dissertations

The youth-based, patriarchal culture in which we live bestows valuable status, power and prestige upon young, beautiful women. Within the standards of this society, the natural aging process progressively deteriorates a woman's beauty, and, therefore, her social worth. A vast network of media and societal messages prompt middle-aged women to react to this devaluation. Several pathways or behavioral alternatives are available as reactions, adaptive reconstructions, and/or the medicalization of the aging process in women. The goal of this sociological/gerontological exploratory research is to identify, examine, label, and categorize the multiple options available to midlife women.

The primary method used for …

A Systems Approach To Designing An Internship Model That Benefits The Sponsoring Organization, Peter-Cornelius Dams

Dissertations

No abstract provided.

Self-Criticism As Experienced By Performing Artists A Phenomenological Study, Rosemary Hakes

Dissertations

The purpose of this study was to describe and document the essence of the experience of self-criticism for performing artists with the aim of providing recommendations for educational and therapeutic purposes. Moustakas (1994) defines essence as “that which is common or universal, the condition or quality without which a thing would not be what it is” (p. 100). In this study a phenomenological research paradigm was used. Each step in the data reduction process built directly toward revelation of essence through synthesis.

The central question guiding this research was: What is the essence of self-criticism as it is experienced by …

Qualitative Inquiry Of Biased And Exemplary Practices Of White Supervisors In Multicultural Supervision, Brian D. Paul

Dissertations

No abstract provided.

Turbo Space-Time Coded Modulation : Principle And Performance Analysis, Dongzhe Cui

Dissertations

A breakthrough in coding was achieved with the invention of turbo codes. Turbo codes approach Shannon capacity by displaying the properties of long random codes, yet allowing efficient decoding. Coding alone, however, cannot fully address the problem of multipath fading channel. Recent advances in information theory have revolutionized the traditional view of multipath channel as an impairment. New results show that high gains in capacity can be achieved through the use of multiple antennas at the transmitter and the receiver. To take advantage of these new results in information theory, it is necessary to devise methods that allow communication systems …

E-Docspros : Exploring Texpros Into E-Business Era, Zhenfu Cheng

Dissertations

Document processing is a critical element of office automation. TEXPROS (TEXt PROcessing System) is a knowledge-based system designed to manage personal documents. However, as the Internet and e-Business changed the way offices operate, there is a need to re-envision document processing, storage, retrieval, and sharing. In the current environment, people must be able to access documents remotely and to share those documents with others. e-DOCPROS (e-DOCument PROcessing System) is a new document processing system that takes advantage of many of TEXPROS's structures but adapts the system to this new environment. The new system is built to serve e-businesses, takes advantage …

Waqs : A Web-Based Approximate Query System, George Jyh-Shian Chang

Dissertations

The Web is often viewed as a gigantic database holding vast stores of information and provides ubiquitous accessibility to end-users. Since its inception, the Internet has experienced explosive growth both in the number of users and the amount of content available on it. However, searching for information on the Web has become increasingly difficult. Although query languages have long been part of database management systems, the standard query language being the Structural Query Language is not suitable for the Web content retrieval.

In this dissertation, a new technique for document retrieval on the Web is presented. This technique is designed …

Scheduling Algorithms For High-Speed Switches, Jinhui Li

Dissertations

The virtual output queued (VOQ) switching architecture was adopted for high speed switch implementation owing to its scalability and high throughput. An ideal VOQ algorithm should provide Quality of Service (QoS) with low complexity. However, none of the existing algorithms can meet these requirements.

Several algorithms for VOQ switches are introduced in this dissertation in order to improve upon existing algorithms in terms of implementation or QoS features. Initially, the earliest due date first matching (EDDFM) algorithm, which is stable for both uniform and non-uniform traffic patterns, is proposed. EDDFM has lower probability of cell overdue than other existing maximum …

Augmenting Applications With Hyper Media, Functionality And Meta-Information, Roberto Galnares

Dissertations

The Dynamic Hypermedia Engine (DHE) enhances analytical applications by adding relationships, semantics and other metadata to the application's output and user interface. DHE also provides additional hypermedia navigational, structural and annotation functionality. These features allow application developers and users to add guided tours, personal links and sharable annotations, among other features, into applications. DHE runs as a middleware between the application user interface and its business logic and processes, in a n-tier architecture, supporting the extra functionalities without altering the original systems by means of application wrappers.

DHE automatically generates links at run-time for each of those elements having relationships …

2d And 3d Surface Image Processing Algorithms And Their Applications, Jianlin Gao

Dissertations

This doctoral dissertation work aims to develop algorithms for 2D image segmentation application of solar filament disappearance detection, 3D mesh simplification, and 3D image warping in pre-surgery simulation. Filament area detection in solar images is an image segmentation problem. A thresholding and region growing combined method is proposed and applied in this application. Based on the filament area detection results, filament disappearances are reported in real time. The solar images in 1999 are processed with this proposed system and three statistical results of filaments are presented.

3D images can be obtained by passive and active range sensing. An image registration …

A Dynamical Model Of The Distributed Interaction Of Intracellular Signals, Adrienne C.N. James

Dissertations

A major goal of modern cell biology is to understand the regulation of cell behavior in the reductive terms of all the molecular interactions. This aim is made explicit by the assertion that understanding a cell's response to stimuli requires a full inventory of details. Currently, no satisfactory explanation exists to explain why cells exhibit only a relatively small number of different behavioral modes.

In this thesis, a discrete dynamical model is developed to study interactions between certain types of signaling proteins. The model is generic and "connectionist" in nature and incorporates important concepts from the biology. The emphasis is …

An Investigation Of Centrifugal Blood-Cell Separation, Timothy Edward Roche

Dissertations

This dissertation investigated the centrifugal, batch separation of whole blood into subpopulations of red blood cells (erythrocytes) and white blood cells (leukocytes). Separations took place in a custom-built centrifuge (using a seal-less, anti-twisting feed/withdrawal system) containing, a 25-ml capacity separation chamber. The blood separation chamber had dart-shaped geometry in the radial plane and a constant depth in the axial direction. Separation experiments were performed on whole bovine blood at varying hematocrit, centrifuge speed, and batch duration. A small, companion study of whole human blood separation runs also were conducted; they concentrated on batch duration effect and achieved superior separations.

A …

Channel Estimation And Signal Enhancement For Ds-Cdma Systems, Kun Wang

Dissertations

This dissertation focuses on topics of Bayesian-based multiuser detection, space-time (S-T) transceiver design, and S-T channel parameter estimation for direct-sequence code-division multiple-access (DS-CDMA) systems.

Using the Bayesian framework, various linear and simplified nonlinear multiuser detectors are proposed, and their performances are analyzed. The simplified non-linear Bayesian solutions can bridge the performance gap between sub-optimal linear multiuser detectors and the optimum multiuser detector.

To further improve the system capacity and performance, S-T transceiver design approaches with complexity constraint are investigated. Novel S-T receivers of low-complexity that jointly use the temporal code-signature and the spatial signature are proposed. Our solutions, which lead …

A Near-Infrared Filter System And Study Of Solar Umbral Dots At 1.6 Μm, Jingshan Wang

Dissertations

The observations of solar magnetic fields are very important because they influence events on the sun. Almost all of magnetographs in the world work in the visible wavelength and they are powerful instruments for measuring strong magnetic fields (above 1000 Gauss) on the sun. To measure the weak solar magnetic fields (below 1000 Gauss), a new filter system (magnetograph) working in near-IR wavelength has been developed in this work. This system includes an interference prefilter (FWHM - 40Å), a liquid crystal magnetic analyzer, a near-IR bireffingent filter (FWHM - 2.5Å), a near-IR Fabry-Perot filter (FWHM - 0.12Å), a near-IR InGaAs …

Joint Source Channel Coding For Progressive Image Transmission, Minyi Zhao

Dissertations

Recent wavelet-based image compression algorithms achieve best ever performances with fully embedded bit streams. However, those embedded bit streams are very sensitive to channel noise and protections from channel coding are necessary. Typical error correcting capability of channel codes varies according to different channel conditions. Thus, separate design leads to performance degradation relative to what could be achieved through joint design. In joint source-channel coding schemes, the choice of source coding parameters may vary over time and channel conditions. In this research, we proposed a general approach for the evaluation of such joint source-channel coding scheme. Instead of using the …

Software And Hardware Improvements For Digital Solar Magnetograph System, Shu Yang

Dissertations

Digital solar imaging systems have been widely used in solar observations. Their high resolution, high rate of image acquisition and convenience for off-line image processing have provided significant improvements to solar physics research. In this project, two digital magnetograph systems established at Big Bear Solar Observatory (BBSO) have been described. One is used to provide a high frame rate magnetogram system, and the other provides a real-time image alignment, i.e., a correlation tracker system.

The developed correlation tracker system consists of a high-speed 64x64 CCD camera, an EDT image grabbing board, an agile mirror, a D/A board and a Sun …

Novel Multiuser Detection And Multi-Rate Schemes For Multi-Carrier Cdma, Pingping Zong

Dissertations

A large variety of services is [sic] expected for wireless systems, in particular, high data rate services, such as wireless Internet access. Users with different data rates and quality of service (QoS) requirements must be accommodated. A suitable multiple access scheme is key to enabling wireless systems to support both the high data rate and the integrated multiple data rate transmissions with satisfactory performance and flexibility. A multi-carrier code division multiple access (MC-CDMA) scheme is a promising candidate for emerging broadband wireless systems. MC-CDMA is a hybrid of orthogonal frequency division multiplexing (OFDM) and code division multiple access (CDMA). The …

Designing Web-Based Adaptive Learning Environment : Distils As An Example, Lilian Cao

Dissertations

In this study, two components are developed for the Web-based adaptive learning: an online Intelligent Tutoring Tool (ITT) and an Adaptive Lecture Guidance (ALG). The ITT provides students timely problem-solving help in a dynamic Web environment. The ALG prevents students from being disoriented when a new domain is presented using Web technology. A prototype, Distributed Intelligent Learning System (DISTILS), has been implemented in a general chemistry laboratory domain.

In DISTILS, students interact with the ITT through a Web browser. When a student selects a problem, the problem is formatted and displayed in the user interface for the student to solve. …

Performance Analysis And Resource Allocation In Cdma Wireless Networks For Multimedia Services, Sebnem Zorlu

Dissertations

The proliferation of Internet and demand for wireless services necessitate large increases in capacity and data rates in order to support different multimedia services. Wireless systems will be required to support sources with a variety of traffic characteristics and quality of service requirements. This requires algorithms for admission control and resource allocation at the session, burst and packet levels. The purpose of this research is to develop and analyze optimal resource allocation strategies to maximize throughput of wireless systems with integrated services. Given the multimedia user requirements, the problem addressed can be formulated as a constrained optimization problem. The objective …