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The Experience Of Older Men Living Alone: A Phenomenological Perspective, Leslie Susan Yetter
The Experience Of Older Men Living Alone: A Phenomenological Perspective, Leslie Susan Yetter
Electronic Theses and Dissertations
The purpose of this study was to uncover older men's experience of living alone. This study was pursued because much of the literature reports that older men who live alone face the highest risk of death, mental illness, physical disability, and social isolation in our country. Based upon this literature, nurses appeared to be ignoring the needs of this vulnerable population. Using Giorgi's phenomenological method, 14 men 60 years and older who lived alone were interviewed and asked about their experience living alone. In the data analysis, the themes of self-growth, self-determination, structure, balance and sense of purpose emerged. Essentially, …
Phylogeny, Hybridization And The Evolution Of Fire-Stimulated Flowering Within The Grass-Leaved Goldenasters (Pityopsis, Asteraceae), View-Hune Teoh
Phylogeny, Hybridization And The Evolution Of Fire-Stimulated Flowering Within The Grass-Leaved Goldenasters (Pityopsis, Asteraceae), View-Hune Teoh
Electronic Theses and Dissertations
No abstract provided.
Painting The Sublime Landscape And Learning To See Nature Along The Way, Deborah Browne
Painting The Sublime Landscape And Learning To See Nature Along The Way, Deborah Browne
Electronic Theses and Dissertations
My thesis is one artist's response to the question of the relevance of landscape painting today, focusing on the communication of the idea of environmental stewardship. The process of studying nature and transferring that vision to canvas promotes greater understanding of the beauty and complexity of elements that comprise ecosystems. The artist possesses a creative impulse finding satisfaction in making artwork that expresses a love of nature as part of a larger worldview. If done well, the persuasive power of such art may be enormous. Comprised of oil paintings and written work, this thesis establishes a way of approaching both …
A Customer Programmable Microfluidic System, Miao Liu
A Customer Programmable Microfluidic System, Miao Liu
Electronic Theses and Dissertations
Microfluidics is both a science and a technology offering great and perhaps even revolutionary capabilities to impact the society in the future. However, due to the scaling effects there are unknown phenomena and technology barriers about fluidics in microchannel, material properties in microscale and interactions with fluids are still missing. A systematic investigation has been performed aiming to develop "A Customer Programmable Microfluidic System". This innovative Polydimethylsiloxane (PDMS)-based microfluidic system provides a bio-compatible platform for bio-analysis systems such as Lab-on-a-chip, micro-total-analysis system and biosensors as well as the applications such as micromirrors. The system consists of an array of microfluidic …
Optical Solitons In Periodic Structures, Konstantinos Makris
Optical Solitons In Periodic Structures, Konstantinos Makris
Electronic Theses and Dissertations
By nature discrete solitons represent self-trapped wavepackets in nonlinear periodic structures and result from the interplay between lattice diffraction (or dispersion) and material nonlinearity. In optics, this class of self-localized states has been successfully observed in both one-and two-dimensional nonlinear waveguide arrays. In recent years such lattice structures have been implemented or induced in a variety of material systems including those with cubic (Kerr), quadratic, photorefractive, and liquid-crystal nonlinearities. In all cases the underlying periodicity or discreteness leads to new families of optical solitons that have no counterpart whatsoever in continuous systems. In the first part of this dissertation, a …
Emotional Evaluation Of A Product/System, Hana Smith
Emotional Evaluation Of A Product/System, Hana Smith
Electronic Theses and Dissertations
Technological advances in products and systems have brought emotional design or emotional engineering to the forefront of research. While several measures to assess emotional expression of products have been developed, the source of the emotion rating of a product or system was often unclear. The purpose of this dissertation is to conduct three studies to examine the causes of emotional ratings and to establish if product-specific emotion rating scales are useful for capturing accurate user evaluations. Three studies were conducted using citrus juicers. Juicers were chosen for several reasons: their wide variety of styles, one self-explanatory purpose (to make juice), …
Adolescents' Stress And Health: Parental Influences And Cognitive Mediators, Reesa Donnelly
Adolescents' Stress And Health: Parental Influences And Cognitive Mediators, Reesa Donnelly
Electronic Theses and Dissertations
Research to date indicates that parental and cognitive variables play a role in stress responses and health outcomes. Although researchers are beginning to focus on developmental processes in stress/health outcomes, there is little research examining which parental behaviors are most predictive of stress/health and whether cognitive variables mediate this relationship. As a result, the current study examines the self-reports of 160 late adolescents regarding parental behaviors, cognitive variables, and stress/health outcomes. In addition, blood pressure reactivity to a stressful situation was collected as a physiological measure of stress. The results suggest that, among the parental behaviors that are examined, parental …
The Gendered Altar: Wiccan Concepts Of Gender And Ritual Objects, Jesse Sloan
The Gendered Altar: Wiccan Concepts Of Gender And Ritual Objects, Jesse Sloan
Electronic Theses and Dissertations
Many ethnographic accounts within the annals of anthropological literature describe the religious beliefs and magical rituals of peoples throughout the world. Fewer scholars have focused on the relatively young Neo-Pagan religious movement. "Neo-Pagan," explains Helen Berger in Voices from the Pagan Census (2003), "is an umbrella term covering sects of a new religious movement, the largest and most important form of which is Wicca" (Berger et al. 2003: 1). This thesis examines the relationship between practice and ideology by analyzing the material culture of Wiccan altars as used by Wiccans in Central Florida, USA. Particular attention is paid to beliefs …
Hatching Asynchrony Occurs As A Byproduct Of Maintaining Egg Viability, Robert Aldredge
Hatching Asynchrony Occurs As A Byproduct Of Maintaining Egg Viability, Robert Aldredge
Electronic Theses and Dissertations
For many organisms, embryonic development begins directly after an egg (ovum) has been fertilized by sperm; however, some organisms delay the onset of embryonic development until conditions are favorable for raising young. This delayed onset of development could occur by delaying implantation of fertilized ovum on the uterine wall, as seen in many mammals. Birds delay embryonic development by laying a set of fertilized ova over a period of consecutive days. These fertilized ova are protected from the ambient environment by an exterior shell, and it is in this shell outside of the female s body that embryonic development occurs, …
The Distribution, Abundance, And Habitat Use Of The Big Cypress Fox Squirrel, (Sciurus Niger Avicennia)., Danielle Munim
The Distribution, Abundance, And Habitat Use Of The Big Cypress Fox Squirrel, (Sciurus Niger Avicennia)., Danielle Munim
Electronic Theses and Dissertations
Human population growth and development reduce the area and quality of natural communities and lead to a reduction of populations of the species associated with them. Certain species can be useful indicators or "focal species" for determining the quality of ecosystem remnants and the required management practices. Tree squirrels are good models for studies on the effects of fragmentation because they depend on mature forests. The Big Cypress fox squirrel, (Sciurus niger avicennia), a state-listed Threatened subspecies endemic to south Florida, appears sensitive to habitat fragmentation and fire regime. This research aims to assess the conservation status of the Big …
Determination Of The Degradation Mechanism For Polychlorinated Biphenyl Congeners Using Mechanically Alloyed Magnesium/Palladium, Robert Devor
Electronic Theses and Dissertations
Polychlorinated biphenyls are a ubiquitous environmental contaminant that can be found today throughout the world in soils and sediments, lakes and rivers, and flora and fauna. PCBs have percolated throughout the food chain, so that almost every human being has a detectable amount of the contaminant within their blood stream. Existing remediation methods include incineration, dredging and landfilling, and microbial degradation, but all of these methods have drawbacks that limit their effectiveness as treatment options. Recently, the use of zero-valent metals as a means of reductive dechlorination has been explored. Using a combination of zero-valent magnesium and catalytic palladium, a …
Surface Engineering Of Gold Nanoparticles And Their Applications, Qiu Dai
Surface Engineering Of Gold Nanoparticles And Their Applications, Qiu Dai
Electronic Theses and Dissertations
Gold nanoparticles (AuNPs) with their unique sizes, shapes, and properties have generated much enthusiasm over the last two decades, and have been explored for many potential applications. The successful application of AuNPs depends critically on the ability to modify and functionalize their surface to provide stability, compatibility, and special chemical functionality. This dissertation is aimed at exploring the chemical synthesis and surface modification of AuNPs with the effort to (1) control the number of functional groups on the particle surface, and to (2) increase the colloidal stability at the physiological conditions. To control the functionality on the particle surface, a …
Attachment Style's Impact On The Perception Of Self-Verifying And Self-Enhancing Comforting Messages, Krista Shellabarger
Attachment Style's Impact On The Perception Of Self-Verifying And Self-Enhancing Comforting Messages, Krista Shellabarger
Electronic Theses and Dissertations
This study investigates the connection between one's adult attachment style and one's evaluation of verifying or enhancing comforting messages. Drawing from research by Swann (2005) and Katz and Joiner (2002), the hypothesis predicted that an individual would prefer verifying messages over enhancing messages regardless of attachment style. A research question was also posed: Will an individual's adult attachment style moderate the degree to which a person perceives the communication of verifying or enhancing messages as helpful or effective? In an effort to find these answers, a questionnaire was completed by 251 individuals. Results indicate a preference for verifying messages among …
Using Stable Isotopes To Assess Population Structure And Feeding Ecology Of North Pacific Humpback Whales (Megaptera Novaeangliae), Briana Witteveen
Using Stable Isotopes To Assess Population Structure And Feeding Ecology Of North Pacific Humpback Whales (Megaptera Novaeangliae), Briana Witteveen
Electronic Theses and Dissertations
The North Pacific humpback whale (Megaptera novaeangliae) is a wide-ranging baleen whale species with a complex life history and population structure. As seasonal migrants, humpback whales are known to inhabit cooler, high-latitude waters when foraging and low-latitudes for mating and calving. Beyond this general migratory pattern, a number of demographic characteristics including, abundance, distribution, seasonal occurrence, and prey preferences remain unknown or poorly described. A complete understanding of humpback whale ecology is therefore lacking. Many methods used to explore these aspects of cetacean ecology are either prohibitively expensive or limited in the scope of what can be learned from their …
Impact Of Scale-Up On Science Teaching Self-Efficacy Of Students In General Education Science Courses, Mary Kay Cassani
Impact Of Scale-Up On Science Teaching Self-Efficacy Of Students In General Education Science Courses, Mary Kay Cassani
Electronic Theses and Dissertations
The objective of this study was to evaluate the effect of two pedagogical models used in general education science on non-majors' science teaching self-efficacy. Science teaching self-efficacy can be influenced by inquiry and cooperative learning, through cognitive mechanisms described by Bandura (1997). The Student Centered Activities for Large Enrollment Undergraduate Programs (SCALE-UP) model of inquiry and cooperative learning incorporates cooperative learning and inquiry-guided learning in large enrollment combined lecture-laboratory classes (Oliver-Hoyo & Beichner, 2004). SCALE-UP was adopted by a small but rapidly growing public university in the southeastern United States in three undergraduate, general education science courses for non-science majors …
The Spiritual Competency Scale: A Comparison To The Aservic Spiritual Competencies, Linda Robertson
The Spiritual Competency Scale: A Comparison To The Aservic Spiritual Competencies, Linda Robertson
Electronic Theses and Dissertations
Spiritual and religious beliefs are significant aspects of a person's worldview and have been well established within many disciplines as a resource for physical and mental health. Therefore, they are relevant topics for counselors. The governing bodies of the counseling profession support the discussion of these beliefs in counseling. To meet the ethical mandates for competency in this area, the Association for Spiritual, Ethical, and Religious Values in Counseling (ASERVIC) produced the Spiritual Competencies. Despite these efforts, spiritual and religious material continues to be neglected in counselor training programs. In the absence of a formal measure of spiritual competency, curricular …
Closing The Achievement Gap For English Language Learners:A Comparison Of Language Arts/Esol And One-Way Developmental Bilingual, Kimberly Marlow
Closing The Achievement Gap For English Language Learners:A Comparison Of Language Arts/Esol And One-Way Developmental Bilingual, Kimberly Marlow
Electronic Theses and Dissertations
The present study was conducted to investigate two English Language Learner programs in one Florida county and their implications for student achievement. The literature review showed that, as students progress through the educational system, the academic content becomes more and more abstract, forcing students to rely more heavily on their oral and written communication skills in English. Significant achievement gaps, sometimes extremely large, were also identified between English-only students and English Language Learner students. One study highlighted a 46% gap on the 2005 National Assessment of Education Progress (NAEP). The present study was designed to investigate 23 middle schools in …
Effects Of Orthophosphate Corrosion Inhibitor In Blended Water Quality Environments, Erica Stone
Effects Of Orthophosphate Corrosion Inhibitor In Blended Water Quality Environments, Erica Stone
Electronic Theses and Dissertations
This study evaluated the effects of orthophosphate (OP) inhibitor addition on iron, copper, and lead corrosion on coupons exposed to different blends of groundwater, surface water, and desalinated seawater. The effectiveness of OP inhibitor addition on iron, copper, and lead release was analyzed by statistical comparison between OP treated and untreated pilot distribution systems (PDS). Four different doses of OP inhibitor, ranging from zero (control) to 2 mg/L as P, were investigated and non-linear empirical models were developed to predict iron, copper, and lead release from the water quality and OP doses. Surface characterization evaluations were conducted using X-ray Photoelectron …
The Effects Of Informal Science Education On Students' Attitudes And Academic Performance, Samuel Ashley
The Effects Of Informal Science Education On Students' Attitudes And Academic Performance, Samuel Ashley
Electronic Theses and Dissertations
Will student attitudes towards science change when they are given a chance to explore an area of science in which they have indicated an interest? This action research thesis investigated this question over a period of nine weeks. The subjects of this study included twelve students enrolled in the same seventh grade physical science class. The school was located in a suburban setting in the Southeast United States. Data for this study was collected with anecdotal notes, participation grid, science attitude survey, student interviews, and student journals. This study found that when students are given the opportunity to pursue an …
Modeling Transmission Dynamics Of Tuberculosis Including Various Latent Periods, Tracy Atkins
Modeling Transmission Dynamics Of Tuberculosis Including Various Latent Periods, Tracy Atkins
Electronic Theses and Dissertations
The systems of equations created by Blower et al. (1995) and Jia et al. (2007) designed to model the dynamics of Tuberculosis are solved using the computer software SIMULINK. The results are first employed to examine the intrinsic transmission dynamics of the disease through two models developed by Blower et al. (1995). The "simple transmission model" was used primarily to give insight to the behavior of the susceptible, latent, and infectious groups of individuals. Then, we consider a more detailed transmission model which includes several additional factors. This model captures the dynamics of not only the susceptible, latent and infectious …
Design And Experimental Study Of An Integrated Vapor Chamber -" Thermal Energy Storage System, Krishna Kota
Design And Experimental Study Of An Integrated Vapor Chamber -" Thermal Energy Storage System, Krishna Kota
Electronic Theses and Dissertations
Future defense, aerospace and automotive technologies involve electronic systems that release high pulsed waste heat like during high power microwave and laser diode applications in tactical and combat aircraft, and electrical and electronic systems in hybrid electric vehicles, which will require the development of an efficient thermal management system. A key design issue is the need for fast charging so as not to overheat the key components. The goal of this work is to study the fabrication and technology implementation feasibility of a novel high energy storage, high heat flux passive heat sink. Key focus is to verify by theory …
Evaluating Tactical Combat Casualty Care Training Treatments Effects On Combat Medic Trainees In Light Of Select Human Descripti, Teresita Sotomayor
Evaluating Tactical Combat Casualty Care Training Treatments Effects On Combat Medic Trainees In Light Of Select Human Descripti, Teresita Sotomayor
Electronic Theses and Dissertations
The use of military forces in urban operations has increased considerably over the past years. As illustrated by the current conflict in Iraq, the Army finds itself fighting its toughest battles in urban areas facing unconventional forces. Soldiers face many threats in hostile fire environments, whether conducting large-scale mechanized warfare, low-intensity conflicts, or operations other than war. Through 1970, there has been no demonstrable reduction in battlefield mortality rate as a percentage of all casualties since data was kept since before the Civil War. For that period of time, nearly all the reduction in overall mortality rate occurred through reduced …
Evaluation Of The Antecedents Of Cultural Competence, Mary Harper
Evaluation Of The Antecedents Of Cultural Competence, Mary Harper
Electronic Theses and Dissertations
Purpose: The threefold purpose of this research is to identify the essential antecedents of cultural competence as identified by international nurse researchers, to compare the content of the extant cultural competence instruments to these antecedents and to potentially identify gaps in their conceptualization. A secondary aim of this research is to initiate validation of Harper's model of ethical multiculturalism. Conceptual Basis: The model of ethical multiculturalism depicts the attributes of ethical multiculturalism as the fulcrum of a balance between two ethical philosophies of fundamentalism and relativism. The attributes of moral reasoning, beneficence/nonmaleficence, respect for persons and communities, and cultural competence …
Sex Education Policy In Florida: Strategies For Change, Jenna Cawley
Sex Education Policy In Florida: Strategies For Change, Jenna Cawley
Electronic Theses and Dissertations
Sex education policies and programs in Florida are largely dominated by the abstinence-only approach. This paper makes the case that abstinence-only education is a failing policy in Florida, and evaluates strategies advocates may use in order to accomplish reform. Three different strategies are evaluated: countywide school district reform, statewide rejection of federal abstinence-only funding, and statewide standardization of sex education via legislation. Contrasts are drawn between all three strategies with regard to their potential impact on sex education policy in Florida, viability, and the challenges they present to advocates. This paper concludes that statewide standardization of sex education in Florida …
Cross-Modal Effects In Tactile And Visual Signaling, James Merlo
Cross-Modal Effects In Tactile And Visual Signaling, James Merlo
Electronic Theses and Dissertations
Using a wearable tactile display three experiments were conducted in which tactile messages were created emulating five standard US Army and Marine arm and hand signals for the military commands, namely: "Attention", "Halt", "Rally", "Move Out", and "Nuclear Biological or Chemical event (NBC)". Response times and accuracy rates were collected for novices responding to visual and tactile representations of these messages, which were displayed either alone or together in congruent or incongruent combinations. Results indicated synergistic effects for concurrent, congruent message presentations showing superior response times when compared to individual presentations in either modality alone. This effect was mediated by …
Moderators Of Trust And Reliance Across Multiple Decision Aids, Jennifer Ross
Moderators Of Trust And Reliance Across Multiple Decision Aids, Jennifer Ross
Electronic Theses and Dissertations
The present work examines whether user's trust of and reliance on automation, were affected by the manipulations of user's perception of the responding agent. These manipulations included agent reliability, agent type, and failure salience. Previous work has shown that automation is not uniformly beneficial; problems can occur because operators fail to rely upon automation appropriately, by either misuse (overreliance) or disuse (underreliance). This is because operators often face difficulties in understanding how to combine their judgment with that of an automated aid. This difficulty is especially prevalent in complex tasks in which users rely heavily on automation to reduce their …
The Impact Of Organizational Politics On Mentoring Relationships, Nicholas Bencaz
The Impact Of Organizational Politics On Mentoring Relationships, Nicholas Bencaz
Electronic Theses and Dissertations
Mentoring in the workplace has become an increasingly popular trend because of its touted success at addressing the career and social related needs of employees. While the majority of the research on mentoring has examined protege benefits, far fewer studies have examined the potential negative effects of mentoring. Moreover, little is known about the antecedents of negative mentoring experiences. A primary objective of the present study was to investigate relations between mentor and protege perceptions of organizational politics and reports of functional and dysfunctional mentoring. In addition, I examined the joint contribution of functional and dysfunctional mentoring to a number …
Factors Associated With Iron Status In A Hutterite Population, Jane M. Osowski
Factors Associated With Iron Status In A Hutterite Population, Jane M. Osowski
Electronic Theses and Dissertations
Several factors are known to influence the absorption of dietary iron. The type of dietary iron consumed, what foods or supplements are consumed with dietary iron can all influence iron absorption. Understanding these factors can lead to better knowledge of what may or may not influence iron absorption. Obtaining accurate dietary data is important in nutrition research. Food frequency questionnaires can be used to estimate intake over a year time period, however, validation of a food frequency questionnaire against the 24 hour recall is essential for assessing the accuracy of the food frequency questionnaire. The following chapters of this dissertation …
Quantitative Kinetic Analysis Of Cro Repression In Vivo As A Function Of Operator Sequence, Yin Gu
Quantitative Kinetic Analysis Of Cro Repression In Vivo As A Function Of Operator Sequence, Yin Gu
Electronic Theses and Dissertations
No abstract provided.
Meshless Hemodynamics Modeling And Evolutionary Shape Optimization Of Bypass Grafts Anastomoses, Zaher El Zahab
Meshless Hemodynamics Modeling And Evolutionary Shape Optimization Of Bypass Grafts Anastomoses, Zaher El Zahab
Electronic Theses and Dissertations
Objectives: The main objective of the current dissertation is to establish a formal shape optimization procedure for a given bypass grafts end-to-side distal anastomosis (ETSDA). The motivation behind this dissertation is that most of the previous ETSDA shape optimization research activities cited in the literature relied on direct optimization approaches that do not guaranty accurate optimization results. Three different ETSDA models are considered herein: The conventional, the Miller cuff, and the hood models. Materials and Methods: The ETSDA shape optimization is driven by three computational objects: a localized collocation meshless method (LCMM) solver, an automated geometry pre-processor, and a genetic-algorithm-based …