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

Digital Commons Network™

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

Electronic Theses and Dissertations

Discipline
Institution
Keyword
Publication Year
File Type

Articles 23941 - 23970 of 35666

Full-Text Articles in Entire DC Network

Bridging The Gap Between Research And Practice: Involving Group Therapists In The Development Of Clinically Relevant Research Questions And Methodologies, Mandy Schleifer Jan 2007

Bridging The Gap Between Research And Practice: Involving Group Therapists In The Development Of Clinically Relevant Research Questions And Methodologies, Mandy Schleifer

Electronic Theses and Dissertations

In 1970 Irvin Yalom published his seminal work on group therapy, in which he presented an eleven-factor theory of psychotherapy group process. Since 1970, most research on group therapeutic factors has investigated their relative importance, depending on the therapeutic setting or modality, client population, or "developmental stage" of the group. However some authors have protested that there are methodological, definitional, or content-oriented problems with extant therapeutic factor research. The present author links these three issues by understanding them as symptoms of a research-practice gap. In order to explore the limitations of existing research and consider potential remedies, she conducted a …


Accidental Inversion During 3d Rotation With 2-Dof Input Devices, Derek Daniel Diaz Jan 2007

Accidental Inversion During 3d Rotation With 2-Dof Input Devices, Derek Daniel Diaz

Electronic Theses and Dissertations

This dissertation focuses on a human operator's ability to perform rotational control of a three-dimensional object using two-degrees of freedom (DOF) interface devices. Although input devices designed specifically for 3D interaction exist, devices traditionally used for two-dimensional user interaction, such as a mouse or joystick, have become ubiquitous to computer tasks. This research examines a particular human-computer interaction issue that arises from stimulus-response compatibility between three-dimensional stimuli spaces and 2-DOF response sets. The focal point of this research is a phenomenon referred to here as accidental inversion. Accidental inversions occur when an operator erroneously moves a three-dimensional object in a …


Stabel Isotope Turnover Rates And Diet-Tissue Discrimination In The Skin Of West Indian Manatees: Implcations For Evaluating Their Feeding Ecology And Habitat Use, Christy Alves Jan 2007

Stabel Isotope Turnover Rates And Diet-Tissue Discrimination In The Skin Of West Indian Manatees: Implcations For Evaluating Their Feeding Ecology And Habitat Use, Christy Alves

Electronic Theses and Dissertations

The West Indian manatee (Trichechus manatus) is an herbivorous marine mammal that occupies freshwater, estuarine, and marine habitats. Despite being considered endangered, relatively little is known about the feeding ecology of either of the two recognized subspecies, the Florida manatee (T.m. latirostris) and Caribbean or Antillean manatee (T.m. manatus). A better understanding of their respective feeding preferences and habitat use is essential to establish criteria on which conservation plans can be based. The present study expands on previous work on manatee feeding ecology by both assessing the application of stable isotope analysis to manatee tissue and providing critical baseline parameters …


Singlet Oxygen Generation Using New Fluorene-Based Photosensitizers Under One- And Two-Photon Excitation, Stephen James Andrasik Jan 2007

Singlet Oxygen Generation Using New Fluorene-Based Photosensitizers Under One- And Two-Photon Excitation, Stephen James Andrasik

Electronic Theses and Dissertations

Molecular oxygen in its lowest electronically excited state plays an important roll in the field of chemistry. This excited state is often referred to as singlet oxygen and can be generated in a photosensitized process under one- or two-photon excitation of a photosensitizer. It is particularly useful in the field of photodynamic cancer therapy (PDT) where singlet oxygen formation can be used to destroy cancerous tumors. The use of two-photon activated photosensitizers possesses great potential in the field of PDT since near-IR light is used to activate the sensitizer, resulting in deeper penetration of light into biological tissue, less photobleaching …


Restoration Of Intertidal Oyster Reefs Affected By Intense Recreational Boating Activity In Mosquito Lagoon, Florida, Andrea Barber Jan 2007

Restoration Of Intertidal Oyster Reefs Affected By Intense Recreational Boating Activity In Mosquito Lagoon, Florida, Andrea Barber

Electronic Theses and Dissertations

In recent years, intertidal reefs of Crassostrea virginica (eastern oyster) along central Florida's east coast have suffered extensive losses due to wakes from recreational boats. These wakes have caused extensive shell movement and sediment resuspension which results in large piles of disarticulated shells along the seaward edges of reefs. Dead margins extend up to one meter above mean high water. The creation and enforcement of "no wake" zones in the area are unlikely. Thus, there is an urgent need for an alternative restoration strategy before these oyster reefs decline any further. The goal of this project was to develop a …


African Religious Integration In Florida During The First Spanish Period, Christopher Beats Jan 2007

African Religious Integration In Florida During The First Spanish Period, Christopher Beats

Electronic Theses and Dissertations

This thesis is an examination of the unique conditions for African-descended slaves in St. Augustine, Florida, during the First Spanish Period. St. Augustine was an important garrison at a remote point in the Spanish Empire at the edge of a hostile frontier. As such, economics were less a priority than defense. Slaves, therefore, received different treatment here than in English colonies or even other Spanish colonies. Due to the threat of Protestantism, religious adherence was more important as a test of loyalty than ethnicity and slaves and freed-people were able to integrate better than in other Spanish holdings. In order …


Effects Of Isolation On Metapopulation Dynamics In Small-World Networks, Alaina Brooke Bernard Jan 2007

Effects Of Isolation On Metapopulation Dynamics In Small-World Networks, Alaina Brooke Bernard

Electronic Theses and Dissertations

Simulation models are valuable for making predictions that may be tested in natural systems and for understanding observed patterns. The simulation model developed for this thesis evaluates the effects of spatial network architecture, including organism dispersal patterns and isolation of habitats, on metapopulations. Two fields were merged throughout this project: metapopulation biology and small-world network theory. Small-world networks are characterized in their extremes as scale-free or single-scale. These models potentially simulate the networks of habitats and corridors in which metapopulations operate. Small-world network theory has been used to describe systems as diverse as rivers, the world-wide-web, and protein interactions, but …


The Effects Of Reciprocal Teaching Strategies On Students' Comprehension Of A Seventh Grade Life Science Text, Brooke Bess Jan 2007

The Effects Of Reciprocal Teaching Strategies On Students' Comprehension Of A Seventh Grade Life Science Text, Brooke Bess

Electronic Theses and Dissertations

This action research study was conducted with 7th grade life science students at a public middle school in central Florida. The author used Reciprocal Teaching (RT) as described by Annemarie Palincsar and Anne Brown (1984) to examine changes in student comprehension when reading their life science textbook and changes in how the students used the predicting, questioning, and summarizing strategies. The RT strategies ask students to employ 4 strategies: predict what they will read, generate questions about what was read, clarify any ideas that were not understood in the reading, and summarize the main idea of the reading. Students were …


Factors That Influence Transfer Of Hazardous Material Training: The Perception Of Selected Fire-Fighter Trainees And Supervisors, Divya Bhati Jan 2007

Factors That Influence Transfer Of Hazardous Material Training: The Perception Of Selected Fire-Fighter Trainees And Supervisors, Divya Bhati

Electronic Theses and Dissertations

This study examined the influence of factors on transfer of training and was based on the work of Broad and Newstrom (1992). For the purpose of this study the Broad and Newstrom (1992) transfer of training barriers are rephrased into positive statements. The nine transfer of training factors are: (1) reinforcement on the job; (2) little interference from immediate (work) environment; (3) supportive organizational culture; (4) trainees' perception of training programs being practical; (5) trainees' perception of relevant training content; (6) trainees' being comfortable with change and associated effort; (7) trainer being supportive and inspiring; (8) trainees' perception of training …


We're Becoming Bilingual And Biliterate! An Ethnographic Study On How A Dual-Language Program In Florida Contributes To The Literacy Development Of English-Language Learners, Diane Black Jan 2007

We're Becoming Bilingual And Biliterate! An Ethnographic Study On How A Dual-Language Program In Florida Contributes To The Literacy Development Of English-Language Learners, Diane Black

Electronic Theses and Dissertations

The purpose of this research was to determine whether participation in a dual-language program by English-language learners (ELLs) contributed to the literacy development of this student population. This qualitative research spanned 5 months and was conducted within an elementary school located in central Florida. It is important to note that the researcher was also a teacher within the dual-language program under study, hence possessed an inside perspective of the program and the progression of several participating students. The study was guided by the following research questions: 1. What factors contribute to the improved literacy development for ELLs through participation in …


Two-Dimensional Guided Mode Resonant Structures For Spectral Filtering Applications, Sakoolkan Boonruang Jan 2007

Two-Dimensional Guided Mode Resonant Structures For Spectral Filtering Applications, Sakoolkan Boonruang

Electronic Theses and Dissertations

Guided mode resonant (GMR) structures are optical devices that consist of a planar waveguide with a periodic structure either imbedded in or on the surface of the structure. The resonance anomaly in GMR structures has many applications as dielectric mirrors, tunable devices, sensors,and narrow spectral band reflection filters. A desirable response from a resonant grating filter normally includes a nearly 100% narrowband resonant spectral reflection (transmission), and a broad angular acceptance at either normal incidence or an oblique angle of incidence. This dissertation is a detailed study of the unique nature of the resonance anomaly in GMR structures with two-dimensional …


Discrimination Of Forensic Trace Evidence Using Laser Induced Breakdown Spectroscopy, Candice Bridge Jan 2007

Discrimination Of Forensic Trace Evidence Using Laser Induced Breakdown Spectroscopy, Candice Bridge

Electronic Theses and Dissertations

Elemental analysis in forensic laboratories can be tedious and many trace evidence items are not analyzed to determine their elemental composition. Presently, scanning electron microscopy-energy dispersive x-ray spectroscopy (SEM-EDS) is the primary analytical tool for determining the elemental composition of trace evidence items. However, due to the time it takes to obtain the required vacuum and the limited number of samples that can be analyzed at any one time, SEM-EDS can be impractical for a high volume of evidence items. An alternative instrument that can be used for this type of analysis is laser ablation inductively coupled plasma mass spectrometry …


Underprivileged Black Americans: The Aftermath Of King Cotton, Patience Bryant Jan 2007

Underprivileged Black Americans: The Aftermath Of King Cotton, Patience Bryant

Electronic Theses and Dissertations

It has been criticized that the present economic state of Black Americans is a reflection of their history stemming from slavery. Diana Pearce's Feminization of Poverty Theory discusses the idea that the ever-rising number of underprivileged Black Americans is due to the fact that there exists a rise in female headed households. The researcher constructed and analyzed several concepts that fall under the Feminization of Poverty Theory: education, employment, family, and social class. For the analysis the study used the documentary Lalee's Kin: The Legacy of Cotton. Results show that each of the categories are approximately equal in proportion under …


White Man's Burden?" The Party Politics Of American Imperialism: 1900-1920, Joven Carandang Jan 2007

White Man's Burden?" The Party Politics Of American Imperialism: 1900-1920, Joven Carandang

Electronic Theses and Dissertations

This dissertation is an interpretive analysis of the political background of the American annexation and administration of the Philippine Islands between 1900 and 1920. It seeks to analyze the political value of supporting and opposing imperialism to American political parties and elites. Seeking to capitalize on the American victory over Spain in 1898, the Republican Party embraced the annexation of the Philippines as a way to promote an idea of rising American international power. Subsequently, their tenure in the Philippines can be analyzed as bringing industrialization to the Philippines for political gain, casting themselves in a politically popular role of …


Raman Spectroscopic Study Of Single Red Blood Cells Infected By The Malaria Parasite Plasmodium Falciparum, William Carter Jan 2007

Raman Spectroscopic Study Of Single Red Blood Cells Infected By The Malaria Parasite Plasmodium Falciparum, William Carter

Electronic Theses and Dissertations

Raman micro-spectroscopy provides a non-destructive probe with potential applications as a diagnostic tool for cellular disorders. This study presents micro-Raman spectra of live erythrocytes infected with a malaria parasite and investigates the potential of this probe to monitor molecular changes which occur during differentiation of the parasite inside the cell. At an excitation wavelength of 633 nm the spectral bands are dominated by hemoglobin vibrations yielding information the on structure and spin state of the heme moiety. It also demonstrates the novel use of silica capillaries as a viable method for studying the erythrocytes in an environment that is much …


Effects Of Advance Organizers On Learning And Retention From A Fully Web-Based Class, Baiyun Chen Jan 2007

Effects Of Advance Organizers On Learning And Retention From A Fully Web-Based Class, Baiyun Chen

Electronic Theses and Dissertations

The purpose of this study is to investigate the short-term and long-term effects of two kinds of advance organizers (AOs), a visual concept map and a text outline. The AOs were administered in a fully Web-based course in health care ethics. The outcome measures are students' knowledge acquisition and application in two posttests. This study was conducted through a post-test only control group design with a random assignment. The population of the study involved 166 college students who participated in this online class in their junior or senior year. The voluntary research participants were randomly assigned into the two treatment …


The Popular Images Of John Brown And Thomas "Stonewall" Jackson, Sarah Clark Jan 2007

The Popular Images Of John Brown And Thomas "Stonewall" Jackson, Sarah Clark

Electronic Theses and Dissertations

This study examines the evolution of the popular images of John Brown and Thomas "Stonewall" Jackson. It begins by analyzing the historiography of each man. The second and third chapters are biographies of each man. The fourth, fifth, and sixth chapters examine the popular images of the two men in print media, visual media, and monuments. This thesis concludes with appendices which contain reproductions of songs, photographs, and paintings referred to in the chapters. This study finds that the myth of the Lost Cause has kept Thomas Jackson's popular image consistently positive and heroic since his death in 1863. At …


Scanning Fabry-Perot Spectrometer For Terahertz And Gigahertz Spectroscopy Using Dielectric Bragg Mirrors, Justin Cleary Jan 2007

Scanning Fabry-Perot Spectrometer For Terahertz And Gigahertz Spectroscopy Using Dielectric Bragg Mirrors, Justin Cleary

Electronic Theses and Dissertations

A scanning Fabry-Perot transmission filter composed of a pair of dielectric mirrors has been demonstrated at millimeter and sub-millimeter wavelengths. The mirrors are formed by alternating quarter-wave optical thicknesses of silicon and air in the usual Bragg configuration. Detailed theoretical considerations are presented for determining the optimum design including factors that affect achievable finesse. Fundamental loss by lattice and free carrier absorption are considered. High resistivity in the silicon layers was found important for achieving high transmittance and finesse, especially at the longer wavelengths. Also considered are technological factors such as surface roughness, bowing, and misalignment for various proposed manufacturing …


An Examination Of The Relationships Among Perceived Gender Discrimination, Work Motivation, And Performance, Jessica M. Cornejo Jan 2007

An Examination Of The Relationships Among Perceived Gender Discrimination, Work Motivation, And Performance, Jessica M. Cornejo

Electronic Theses and Dissertations

Gender discrimination and work motivation are two important constructs for employers to consider. Changing workforce trends towards a more diverse workforce make understanding discrimination in the workplace more important than ever. And, established direct relationships between motivation and performance make understanding motivation key to organizational success. The purpose of this study was to examine the relationships among perceived gender discrimination at work, work motivation, and performance. Although much theory and research exists regarding motivation and performance, this study uses a new measure of motivation based on the Pritchard and Ashwood (2007) theory of work motivation. It was hypothesized that perceived …


Two-Photon 3d Optical Data Storage Via Fluorescence Modulation Of Fluorene Dyes By Photochromic Diarylethenes, Claudia Corredor Jan 2007

Two-Photon 3d Optical Data Storage Via Fluorescence Modulation Of Fluorene Dyes By Photochromic Diarylethenes, Claudia Corredor

Electronic Theses and Dissertations

Three-dimensional (3D) optical data storage based on two-photon processes provides highly confined excitation in a recording medium and a mechanism for writing and reading data with less cross talk between multiple memory layers, due to the quadratic dependence of two photon absorption (2PA) on the incident light intensity. The capacity for highly confined excitation and intrinsic 3D resolution affords immense information storage capacity (up to 1012 bits/cm3). Recently, the use of photochromic materials for 3D memory has received intense interest because of several major advantages over current optical systems, including their erasable/rewritable capability, high resolution, and high sensitivity. This work …


An Investigation Of The Relationship Between Counseling Self-Efficacy And Counselor Wellness Among Counselor Education Students, Jennifer Curry Jan 2007

An Investigation Of The Relationship Between Counseling Self-Efficacy And Counselor Wellness Among Counselor Education Students, Jennifer Curry

Electronic Theses and Dissertations

Recent research in counselor training has focused on the difficulties and challenges facing counseling practitioners that result in high stress, burnout, compassion fatigue, vicarious trauma, and counselor impairment. The American Counseling Association's (ACA) Code of Ethics has addressed the ethical issues inherent in counselor impairment. Further, the Council for Accreditation of Counseling and Related Educational Programs (CACREP) has focused on the development of counselors that will assist them in being resilient to workplace stressors. Wellness is a theoretically based construct that holds much promise for bolstering the resilience of pre-service counselors. In addition, counselor self-efficacy has been linked to greater …


Frequency Distribution Of Pyroxene Types And A Method To Separate The Composition Of Multiple Pyroxenes In A Sample, Jimmy Allen Davis Jan 2007

Frequency Distribution Of Pyroxene Types And A Method To Separate The Composition Of Multiple Pyroxenes In A Sample, Jimmy Allen Davis

Electronic Theses and Dissertations

Determining mafic mineral composition of asteroid bodies is a topic reviewed by M.J. Gaffey et al. (2002). The iterative procedure discussed can be implemented as an algorithm, and such efforts revealed weaknesses that are examined in this work. We seek to illustrate the limits of this method and graphically determine its predictions. There are boundaries in the formulae given where the equations break down. In ranges where mafic mixtures are predicted, a method is illustrated that allows a decoupling of these mixtures into the constituents.


Genetic And Phenotypic Evolution In The Ornate Chorus Frog (Pseudacris Ornata): Testing The Relative Roles Of Natural Selection,, Jacob Degner Jan 2007

Genetic And Phenotypic Evolution In The Ornate Chorus Frog (Pseudacris Ornata): Testing The Relative Roles Of Natural Selection,, Jacob Degner

Electronic Theses and Dissertations

Understanding how migration, genetic drift, and natural selection interact to maintain the genetic and phenotypic variation we observe in natural populations is a central goal of population genetics. Amphibians provide excellent model organisms for investigating the interplay between these evolutionary forces because amphibians are generally characterized by limited dispersal abilities, high philopatry, and are obligately associated with the areas around suitable habitats (e.g. breeding ponds). Thus, on relatively small geographic scales, the relative effects of all of these evolutionary forces can be studied together. Here, we study the interaction of migration, genetic drift, natural selection, and historical process in the …


Faculty Perceptions Of Alignment Ofadministrative Practices With A University Missionutilizing A Hospitality Model, Duncan Dickson Jan 2007

Faculty Perceptions Of Alignment Ofadministrative Practices With A University Missionutilizing A Hospitality Model, Duncan Dickson

Electronic Theses and Dissertations

The purpose of this study was to explore the perceptions of a university's faculty as to how the strategies, staffing policies, and systems procedures were aligned with the mission statement. Differences in perceptions were examined by college affiliation, rank, primary teaching assignment and gender. Data were analyzed to determine if there were correlations between faculty members' perceptions of alignment of the university's mission statement with administration's actions, policies, and procedures and their level of organizational commitment, job satisfaction, and overall satisfaction with their job and the organization The population for this study was comprised initially of 1363 teaching faculty members …


A Relationship Between Career Decision And Motivation To Persist, Patricia Ann Ferguson Jan 2007

A Relationship Between Career Decision And Motivation To Persist, Patricia Ann Ferguson

Electronic Theses and Dissertations

During the past few decades, research on student retention has been primarily focused on the constructs of social integration, lack of financial support and academic under-preparedness (Astin, 1975; Bean & Metzner, 1985; Cabrera, 1993; Pascarella,1982; Tinto, 1975). This study examined the phenomenal occurrence of low retention due to "lack of major and career direction." The Career Decision Scale and the Achievement Motivation Profile assessments were administered to 105 students at a comprehensive community college. Six linear regressions were conducted to determine if there were statistical relationships between:(a) career decision and the motivation to persist and; (b) career indecision and the …


Central Florida High School Principals' Perceptions Of The Florida School Indicators Report, William Gaught Jan 2007

Central Florida High School Principals' Perceptions Of The Florida School Indicators Report, William Gaught

Electronic Theses and Dissertations

The purpose of this study was to identify the perceptions that central Florida public high school principals had regarding the Florida School Indicators Report (FSIR) and its usefulness. The FSIR, published by the Florida Education, was designed to be a comprehensive, single source document for parents, lawmakers, and school administrators to compare key performance indicators to similar schools or districts state wide. It provided information on 74 different indicators of school or district performance. A total of 70 public high school principals from 13 central Florida school districts responded to a postal survey and provided their perceptions regarding the importance …


Spectroscopic Studies Of Laser Plasmas For Euv Sources, Simi A. George Jan 2007

Spectroscopic Studies Of Laser Plasmas For Euv Sources, Simi A. George

Electronic Theses and Dissertations

With the availability of high reflectivity multilayer mirrors and zone plate lenses, the EUV region (5nm - 40nm) of the electromagnetic spectrum is currently being explored for applications of nanoscale printing and imaging. Advances made in this area have consequences for many areas of science. Research for producing a compact, bright EUV source for laboratory use has gained momentum in recent years. For this study, EUV radiation is produced by irradiating target materials using a focused laser beam. Focused laser beam ionizes the target to create a hot, dense, pulsed plasma source, where emission is a result of the relaxation …


Attitudes Towards Seeking Professional Counseling: The Role Of Outcome Expectations And Emotional Openness In English-Speaking C, Wendy-Lou Greenidge Jan 2007

Attitudes Towards Seeking Professional Counseling: The Role Of Outcome Expectations And Emotional Openness In English-Speaking C, Wendy-Lou Greenidge

Electronic Theses and Dissertations

Purpose: The college environment is documented as a universally stressful period where students face many challenges (Baysden, 2002; Pandit, 2003). In addition to these potential stressors, international students face other unique challenges such as loss of support network, feelings of isolation, economic hardship, coping with oftentimes competing cultures, and anxiety which emanates from unfamiliarity (Kim & Omizo, 2003; Rounds & Kline, 2005). Unsuccessful resolution of these challenges can negatively impact the acculturation process, their mental health, and their academic programs (Roysircar, 2002). Despite these many challenges, research consistently shows that international students are less likely than their US counterparts to …


The Emergence Of The Maya Tlaloc: A Late Classic Religious Icon, Amanda Toyie Groff Jan 2007

The Emergence Of The Maya Tlaloc: A Late Classic Religious Icon, Amanda Toyie Groff

Electronic Theses and Dissertations

Iconography has the capability to memorialize and guarantee one's place in history; iconography can also provide powerful insight into human culture, and explore social and cultural values in a visual manner. Iconography can incorporate information about group identities, allegiances, religious affiliations, propaganda, and acceptance within both modern and ancient societies. By studying a specific iconographic figure, the Central Mexican god Tlaloc, as a visual representation of a belief or identity, we can glean a greater understanding of the cultural transmission of iconographic symbols. The substantial use of this icon, in both Central Mexico and the Maya region, reveals iconography as …


The Mediating Role Of Motivation And Job Satisfaction In Work Environment-Outcome Relationships, Melissa Guzman Jan 2007

The Mediating Role Of Motivation And Job Satisfaction In Work Environment-Outcome Relationships, Melissa Guzman

Electronic Theses and Dissertations

Research that links various aspects of the work environment to important work outcomes can be traced back almost seventy years. Despite the history and proliferation of these studies, firm conclusions have not been reached regarding the ways through which the work environment impacts these outcomes. For example, mediating variables such as motivation and job satisfaction have been proposed as affective and cognitive states that could impact the environment-outcome relationships but have received little attention. Additionally, organizational and contextual moderators such as group size and demographics that could impact the relationships have been called for but have yet to be studied. …