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2005

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Discrete Wave Propagation In Quadratically Nonlinear Media, Robert Iwanow Jan 2005

Discrete Wave Propagation In Quadratically Nonlinear Media, Robert Iwanow

Electronic Theses and Dissertations

Discrete models are used in describing various microscopic phenomena in many branches of science, ranging from biology through chemistry to physics. Arrays of evanescently coupled, equally spaced, identical waveguides are prime examples of optical structures in which discrete dynamics can be easily observed and investigated. As a result of discretization, these structures exhibit unique diffraction properties with no analogy in continuous systems. Recently nonlinear discrete optics has attracted a growing interest, triggered by the observation of discrete solitons in AlGaAs waveguide arrays reported by Eisenberg et al. in 1998. So far, the following experiments involved systems with third order nonlinearities. …

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The Effects Of A Single Exercise Bout On Plasma Leptin Concentration In Obese Males, George Kyriazis Jan 2005

The Effects Of A Single Exercise Bout On Plasma Leptin Concentration In Obese Males, George Kyriazis

Electronic Theses and Dissertations

Recent findings suggest that leptin may be regulated in response to abrupt changes in energy homeostasis. Therefore, it is conceivable that transient changes in energy balance induced by exercise may also regulate leptin synthesis and secretion. As such, we hypothesized that acute increases energy expenditure (i.e. exercise), may regulate leptin concentrations in obese individuals. Fifteen healthy obese males underwent either a single exercise session of moderate intensity (58.4 % ± 4.0 of VO2max) for 60 min (n=8), or served as controls (n=7). The exercise session elicited an energy expenditure of 567±80 Kcal. No significant changes in plasma leptin (pre 23.5± …

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Study Of Oxide Breakdown, Hot Carrier And Nbti Effects On Mos Device And Circuit Reliability, Yi Liu Jan 2005

Study Of Oxide Breakdown, Hot Carrier And Nbti Effects On Mos Device And Circuit Reliability, Yi Liu

Electronic Theses and Dissertations

As CMOS device sizes shrink, the channel electric field becomes higher and the hot carrier (HC) effect becomes more significant. When the oxide is scaled down to less than 3 nm, gate oxide breakdown (BD) often takes place. As a result, oxide trapping and interface generation cause long term performance drift and related reliability problems in devices and circuits. The RF front-end circuits include low noise amplifier (LNA), local oscillator (LO) and mixer. It is desirable for a LNA to achieve high gain with low noise figure, a LO to generate low noise signal with sufficient output power, wide tuning …

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An Evaluation Of Enrollment Management Models Of The 28 Florida Community Colleges, Thomas Lobasso Jan 2005

An Evaluation Of Enrollment Management Models Of The 28 Florida Community Colleges, Thomas Lobasso

Electronic Theses and Dissertations

The purpose of this study was to determine the extent to which enrollment management models have been successfully implemented within the 28 Florida community colleges. The study also sought to determine when enrollment management structures began and whether expected benefits were achieved. Analysis of the data collected in this study indicated the following five major findings. First, enrollment management concepts and practices have been implemented at some level within the 23 Florida community colleges surveyed. This was evident by the use of the word "enrollment" in the organizational titles as well as in the titles of the individuals who were …

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Effects Of Reduced Ras And Volume On Anaerobic Zone Performance For A Septic Wastewater Biological Phosphorous Removal System, Daniel Magro Jan 2005

Effects Of Reduced Ras And Volume On Anaerobic Zone Performance For A Septic Wastewater Biological Phosphorous Removal System, Daniel Magro

Electronic Theses and Dissertations

Enhanced Biological Phosphorous Removal (EBPR) performance was found to be adequate with reduced Return Activated Sludge (RAS) flows (50% of available RAS) to the anaerobic tank and smaller than typical anaerobic zone volume (1.08 hours hydraulic retention time or HRT). Three identical parallel biological nutrient removal (BNR) pilot plants were fed with strong, highly fermented (160 mg/L VFAs), domestic/industrial wastewater from a full scale wastewater treatment facility (WWTF). The pilot plants were operated at 100%, 50%, 40% and 25% RAS (percent of available RAS) flows to the anaerobic tank with the remaining RAS to the anoxic tank. In addition, varying …

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Deriving The Density Of States For Granular Contact Forces, Philip Metzger Jan 2005

Deriving The Density Of States For Granular Contact Forces, Philip Metzger

Electronic Theses and Dissertations

The density of single grain states in static granular packings is derived from first principles for an idealized yet fundamental case. This produces the distribution of contact forces P_f(f) in the packing. Because there has been some controversy in the published literature over the exact form of the distribution, this dissertation begins by reviewing the existing empirical observations to resolve those controversies. A method is then developed to analyze Edwards' granular contact force probability functional from first principles. The derivation assumes Edwards' flat measure -- a density of states (DOS) that is uniform within the metastable regions of phase space. …

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Relationships Among School Counselor Self-Efficacy, Perceived School Counselor Role, And Actual Practice, Michelle Mitcham-Smith Jan 2005

Relationships Among School Counselor Self-Efficacy, Perceived School Counselor Role, And Actual Practice, Michelle Mitcham-Smith

Electronic Theses and Dissertations

The purpose of this study was to investigate the relationships that exist among school counselor self-efficacy, perceptions of the professional school counselor's role held by counselors, and actual practice. Data were collected from 192 professional school counselors that attended a statewide counselor conference. Professional school counselors responded to two researcher-designed surveys; the first was a 14-item demographic survey; the second, a 20-item by four-question survey for a total of 80 responses. A Multiple Regression Analysis was used to ascertain what relationships existed between school counselor self-efficacy, school counselor perceived role, and actual practice. The questionnaire listed 20 different counselor and …

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Parental Attributions And Discipline Of Child Behavior, Arazais Oliveros Jan 2005

Parental Attributions And Discipline Of Child Behavior, Arazais Oliveros

Electronic Theses and Dissertations

Extant empirical evidence suggests that multiple risk and protective factors implicated in children's development of behavior problems are intertwined. This study, therefore, investigated the relationships among parental depression and anger, attributions of control, discipline, parent-child relationship variables, and children's behavior problems. Results were based on the responses of parents (55 mothers and 13 fathers) with children in Head Start and parents (52 mothers and 4 fathers) with children in Private School settings. All parents had children who ranged in age from 3- to 8-years. Compared to Private School parents, Head Start parents had lower levels of nonviolent discipline, involvement, and …

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Effects Of Three Instructional Schedules On Skill Acquisition And Generalization In The Use Of Two-Way Radios To Report Task Completion By High School Students With Moderate Intellectual Disabilities, Geraldine Perez-Turner Jan 2005

Effects Of Three Instructional Schedules On Skill Acquisition And Generalization In The Use Of Two-Way Radios To Report Task Completion By High School Students With Moderate Intellectual Disabilities, Geraldine Perez-Turner

Electronic Theses and Dissertations

Educators of students with moderate and severe intellectual disabilities face a significant challenge in preparing their students while in school to function, acquire, and maintain skills that would facilitate successful performance in the workforce while in supported and/or independent employment after graduation. The field of special education still debates about the best way to teach students with moderate intellectual disabilities, the best setting for their instruction and the best instructional schedule. The current research investigated the effectiveness and efficiency of three instructional schedules in the skill acquisition and generalization of two-way radio usage to report task completion by high school …

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The Effects Of Exposure To Feminist Ideology On Women's Body Image, Rachel Diane Peterson Jan 2005

The Effects Of Exposure To Feminist Ideology On Women's Body Image, Rachel Diane Peterson

Electronic Theses and Dissertations

Body image disturbance has become an increasing problem among women (Cash & Henry, 1995). Thus researchers have begun to focus on methods of prevention and intervention. Programs utilizing psychoeducation and Festinger's cognitive dissonance theory, for example, have been found to reduce body image dissatisfaction and related symptomatology. The information provided and potential impact are limited, however, because the interventions do not offer women an adaptive method of interpreting the many appearance-related messages they experience. This study sought to determine if exposure to feminist theory of body image may act as a buffer – a filter through which cultural messages about …

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The Influence Of Counselor Education Programs On Counselor Wellness, Leila Roach Jan 2005

The Influence Of Counselor Education Programs On Counselor Wellness, Leila Roach

Electronic Theses and Dissertations

Counselor education programs strive to promote the personal development and wellness of counselors in addition to cognitive, skill, and professional competencies. The purpose of this study was to examine trends in self-reported levels of wellness of master's level counseling students. The cross-sectional study investigated the influence of time in a counselor education program on the wellness levels of counseling students. Students were surveyed at three points in their counselor education training: the beginning, middle, and end. Participants included 204 master's level counseling students enrolled in three CACREP-accredited counselor education programs located in the southeastern United States. Each participant completed the …

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Utilization Of Total Mass As A Control In Diffusion Processes, Mohamed Salman Jan 2005

Utilization Of Total Mass As A Control In Diffusion Processes, Mohamed Salman

Electronic Theses and Dissertations

As motivation for the mathematical problems considered in this work, consider a chamber in the form of a long linear transparent tube. We allow for the introduction or removal of material in a gaseous state at the ends of the tube. The material diffuses throughout the tube with or without reaction with other materials. By illuminating the tube on one side with a light source with a frequency range spanning the absorption range for the material and collecting the residual light that passes through the tube with photo-reception equipment, we can obtain a measurement of the total mass of material …

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A Measure Of Entrepreneurial Risk Preference And Optimism Using Field Experiments, Mark Schneider Jan 2005

A Measure Of Entrepreneurial Risk Preference And Optimism Using Field Experiments, Mark Schneider

Electronic Theses and Dissertations

Previous studies have underscored the economic importance of the role of the entrepreneur, and empirical studies testing the nature of the entrepreneur are notably lacking. This study directly addresses this issue by examining newly gathered field data which captures the decision making and risk behaviors for a group of high-technology entrepreneurs. Two decision making tasks were used to elicit risk aversion measures and to test for any 'joy of winning' or judgmental errors, possibly in the form of over optimistic behavior. These elicitations were made with the use of multiple price formats and winner's curse experiments. 62 responses were collected …

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Students With Either Specific Learning Disabilities Or With Attention Deficit Hyperactivity Disorder: Perceptions Of Self As Learner In Online Courses At Florida Virtual School And In The Traditional Learning Environment, Theresa Smouse Jan 2005

Students With Either Specific Learning Disabilities Or With Attention Deficit Hyperactivity Disorder: Perceptions Of Self As Learner In Online Courses At Florida Virtual School And In The Traditional Learning Environment, Theresa Smouse

Electronic Theses and Dissertations

The goal of this research study was to investigate the perception of self as learner for students with Specific Learning Disabilities (SLD) or with Attention Deficit Hyperactivity Disorder (ADHD). Students who had completed at least one mathematics or science course at Florida Virtual School, an online learning environment, were surveyed concerning their perception of self as learner in the online learning environment and in the traditional learning environment in 6 basic areas: feelings of success; level of comfort; relationship with teachers; and access to, communication with and feedback from teachers; and advantages and disadvantages of each learning environment. Results of …

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An Investigation Of Implementations Of Smaller Learning Communities In Florida High Schools, Todd James Bondurant Sparger Jan 2005

An Investigation Of Implementations Of Smaller Learning Communities In Florida High Schools, Todd James Bondurant Sparger

Electronic Theses and Dissertations

The issue of high school reform has received national attention during the first part of the 21st century. One idea brought forth in this restructuring effort has been the desire to create high schools with smaller student populations. However, in an era of tight budgets, where resources are not always available to build more schools, educators have explored the possibility of dividing existing large high schools into smaller units. This restructuring approach has many titles, but is frequently referred to as a Smaller Learning Community (SLC). Since 2000, the federal government has pledged $245 million to schools willing to create …

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Compressed Pattern Matching For Text And Images, Tao Tao Jan 2005

Compressed Pattern Matching For Text And Images, Tao Tao

Electronic Theses and Dissertations

The amount of information that we are dealing with today is being generated at an ever-increasing rate. On one hand, data compression is needed to efficiently store, organize the data and transport the data over the limited-bandwidth network. On the other hand, efficient information retrieval is needed to speedily find the relevant information from this huge mass of data using available resources. The compressed pattern matching problem can be stated as: given the compressed format of a text or an image and a pattern string or a pattern image, report the occurrence(s) of the pattern in the text or image …

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Couple Play As A Predictor Of Couple Bonding, Physical Health And Emotional Health, Linda Vanderbleek Jan 2005

Couple Play As A Predictor Of Couple Bonding, Physical Health And Emotional Health, Linda Vanderbleek

Electronic Theses and Dissertations

Traditional couple counseling research focused on why people end relationships, with research only recently addressing what factors contribute to relationship satisfaction and stability. Yet, throughout this research, minimal attention has been paid to the role of play in couple counseling. The research available on play in couple counseling had varied definitions of couple play and was not based on current couple counseling theory. The research and anecdotal data on couple play proposed a strong relationship between couple play and the factors that predict successful, long-term couple relationships, individual physical health and emotional health. This study applied current couple counseling theory …

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Effects Of A Mathematics Curriculum Rich In Spatial Reasoning Activities On Fifth Grade Students' Abilities To Spatially Reason: An Action Research Project, Theresa Varn Jan 2005

Effects Of A Mathematics Curriculum Rich In Spatial Reasoning Activities On Fifth Grade Students' Abilities To Spatially Reason: An Action Research Project, Theresa Varn

Electronic Theses and Dissertations

The purpose of this study is to describe the effect of a curriculum rich in spatial reasoning activities and experiences on the ability of my fifth grade students to spatially reason. The study was conducted to examine 1) the effects of my practice of incorporating spatial reasoning lessons and activities in my fifth-grade mathematics classroom on the students' ability to spatially reason and 2) the effects of my practice of incorporating spatial reasoning lessons and activities on my students' ability to problem solve. Data were collected over a ten-week period through the use of student interviews, anecdotal records, photos of …

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The Effects Of Literature On Student Motivation And Connections In Mathematics, Arnita Washington Jan 2005

The Effects Of Literature On Student Motivation And Connections In Mathematics, Arnita Washington

Electronic Theses and Dissertations

The purpose of this study was to determine the effects of literature use in the middle grades mathematics curriculum on student motivation and connections. This study involved collecting several types of data regarding students' attitudes, motivation, and their abilities to make real-world connections. Findings from pre and post attitude surveys indicated that literature use in the mathematics curriculum has no effect on students' attitudes towards mathematics. Furthermore, findings from journal entries, students' work, and interview responses indicate that although students find storybooks fun and interesting, their use does not seem to lead to increases in students' understanding of mathematics. However, …

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College Students' Well Being: The Role Of Parent-College Student Expectation Discrepancies And Communication, Allison Kanter Agliata Jan 2005

College Students' Well Being: The Role Of Parent-College Student Expectation Discrepancies And Communication, Allison Kanter Agliata

Electronic Theses and Dissertations

Parental influence on college students' well being is underestimated frequently in the developmental literature. College students often set social and academic goals according to their perception of what their parents expect from them. The discrepancy between college students' performance and their perceptions of parents' expectations can impact their quality of life. The purpose of this study was to examine various parent-college student expectation discrepancies and communication levels as predictors for college students' psychological well being. Results revealed that college students reported experiencing higher levels of anger, depression, and anxiety and lower levels of self-esteem and college adjustment when higher expectation-performance …

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The Participation Of Occupational Therapy Faculty In Clinical Practice, Bonnie Rae Decker Jan 2005

The Participation Of Occupational Therapy Faculty In Clinical Practice, Bonnie Rae Decker

Electronic Theses and Dissertations

The purpose of this research study was to examine the current use of clinical practice by full-time occupational therapy faculty members. Clinical practice, including faculty clinical practice and moonlighting were addressed. The seven research questions addressed were: (a) the perceived benefits of clinical practice as identified by occupational therapy faculty members; (b) the perceived barriers to clinical practice as identified by occupational therapy faculty; (c) if perceived benefits and barriers of clinical practice as identified by occupational therapy faculty differ as a function of their academic institution's Carnegie Classification (The Carnegie Foundation, 2000); (d) if perceived benefits and barriers of …

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Availability Of The Felony-Murder Rule Today: Equitable And Just Or Unfair And Excessive?, Traci Rose Francis Jan 2005

Availability Of The Felony-Murder Rule Today: Equitable And Just Or Unfair And Excessive?, Traci Rose Francis

Electronic Theses and Dissertations

The current research provides an examination of felony murder to determine the similarities and differences among jurisdictions in the nation. It provides a current analysis of jurisprudence to update the literature as to practices in the United States pertaining to the availability of felony murder and the specific elements that make up the rule. This research conducts a survey of the 50 states, the District of Columbia, and the Federal System. It provides an overview of the felony-murder rule and its availability, the degrees to which the doctrine is utilized, and the subsequent sentences allowable for defendants convicted under the …

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Performance Implications Of Alternative Color-Codesin Airport X-Ray Baggage Screening, Matthew Hilscher Jan 2005

Performance Implications Of Alternative Color-Codesin Airport X-Ray Baggage Screening, Matthew Hilscher

Electronic Theses and Dissertations

This research investigated both cognitive and affective influences of alternative color combinations in a search task paradigm. The effects of re-mapping the existing, comparatively arbitrarily color codes of baggage X-ray images, were explored. Alternative color-codes were evaluated for improving the economy of visual search in X-ray baggage screening. Using a 2 x 2 between-groups design, the perceptual aspects of color-codes varying in degree of visual agreeability (accordant or discordant) and color contrast (high or low) were examined in terms of effectiveness (detection accuracy) and efficiency (reaction time). Three hypotheses were put forth; two postulated main effects for color contrast and …

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Non-Acute Cognitive Sequelae Associated With Recreational Ecstasy Use: A Meta-Analysis, Tiffany Leigh Linkovich Kyle Jan 2005

Non-Acute Cognitive Sequelae Associated With Recreational Ecstasy Use: A Meta-Analysis, Tiffany Leigh Linkovich Kyle

Electronic Theses and Dissertations

Studies using animal models have found considerable evidence of neurological damage resulting from exposure to 3,4- methylenedioxymethamphetamine (MDMA, ecstasy). Yet, studies comparing the cognitive performance of human recreational ecstasy users to ecstasy naïve controls have produced inconsistent results. The present study is a meta-analysis of the published empirical literature on the cognitive sequelae of human recreational ecstasy use. The pooled effect size estimate for combined cognitive domains was statistically significant and moderate in size. Small to large, statistically significant aggregate effect sizes resulted for eight of the nine cognitive ability domains included in the analysis. Moderator analyses suggested that frequent …

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What Instructional Modification Implementations Bring Adult Education Learners To Success And Retention? Analysis Of An Online Adult Basic Education Program, Bernadette Ann Propst Jan 2005

What Instructional Modification Implementations Bring Adult Education Learners To Success And Retention? Analysis Of An Online Adult Basic Education Program, Bernadette Ann Propst

Electronic Theses and Dissertations

What Instructional Modification Implementations Bring Adult Education Learners to Success and Retention? Analysis of an Online Adult Basic Education Program. Adult learners enrolled in my online Adult Basic Education program showed low completion rates for the course. This study's purpose was to discover what instructional modifications would bring these learners to a successful outcome in the program. I implemented the following instructional modifications: asynchronous email communication, weekly progress reports emailed to each participant and a minimum requirement of 10 assignment completions on a weekly basis. Teacher-student interaction increased because of these implementations. I reviewed literature that discussed distance education, adult …

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Perceptions Of Research Administrators On The Value Of Certification, Thomas Joseph Roberts Jan 2005

Perceptions Of Research Administrators On The Value Of Certification, Thomas Joseph Roberts

Electronic Theses and Dissertations

The purpose of this study was to determine the perceived value of certification to research administration professionals and demographic characteristics. This study sought to determine whether those who have attained the Certificate in Research Administration (CRA) perceive a benefit to their careers and why most research administrators do not attempt certification. The primary research question studied is concerned with the relationship between perceived value of the CRA to research administration professionals and demographic characteristics. The survey instrument, Research Administrator Survey, was electronically distributed to 277 research administrators based in the Southeast region of the National Council of University Research Administrators …

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The Effect Of Technology Acceptance On Post Secondary African- American Students Achievement In Mathematics: A Path Analytic Inquiry, Sulakshana Sen Jan 2005

The Effect Of Technology Acceptance On Post Secondary African- American Students Achievement In Mathematics: A Path Analytic Inquiry, Sulakshana Sen

Electronic Theses and Dissertations

The purpose of this research was to investigate the effect of technology acceptance on post secondary African American students' achievement in Mathematics. The study was conducted in a historically Black four-year college in Daytona Beach, Florida on students using the computer to enhance their mathematics performance in an introductory algebra mathematics course. By using Technology Acceptance Model (TAM) developed by F. Davis (1989), this study focused on variables such as perceived usefulness, perceived ease of use, computer self-efficacy, subjective norms, attitude and actual use of the computer to account the effect towards the achievement in the final exam which is …

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Ritual, Myth, And Symbol In The Field Of Nuclear Posturing, Sean Noah Walsh Jan 2005

Ritual, Myth, And Symbol In The Field Of Nuclear Posturing, Sean Noah Walsh

Electronic Theses and Dissertations

Since their inception, the actual use of nuclear weapons in conflict is extremely limited. There have been only two documented occurrences which were committed exclusively by the United States. By contrast, however, state posturing with nuclear weapons occurs with regularity transcending historical situations, national wealth, military power, or even the actual possession of nuclear weapons. Rationalist arguments that depict nuclear posturing as a means of deterrence appear insufficient given its tendency to unbalance perceptions of equilibrium, and the public nature in which it occurs. Instead, I examine nuclear posturing by the United States during the Cold War as a form …

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Green Building: Public Opinion, Semantics, And Heuristic Processing, Christina Michelle Webb Jan 2005

Green Building: Public Opinion, Semantics, And Heuristic Processing, Christina Michelle Webb

Electronic Theses and Dissertations

Research on public support for green building has, to date, been incomplete. Understanding the demographics of individuals that support green building has remained secondary to merely determining real opinions on the topic. The identity of supporters and the motivation behind their support is the focus of this research. Specifically, is support for green building dependent on the way in which the issue is framed? This research aims to focus on those that are spreading the message about green building, industry experts, and the mass public. By exposing how green building experts talk about the issue, we may begin to understand …

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Analysis Of International Student Enrollments At A Florida Public University, Diana L. Weidman Jan 2005

Analysis Of International Student Enrollments At A Florida Public University, Diana L. Weidman

Electronic Theses and Dissertations

This study sought to determine if international student admissions at a public university had been affected by the events on September 11, 2001. To accomplish this, an analysis was conducted comparing international and domestic students' application rates, number of acceptances and enrollments for the fall semesters from 1998 through 2004 on data obtained from University of South Florida. The USF population data were also compared to enrollments in the U.S. for the respective years. Analyses on application frequencies and student enrollments comparing colleges of major and regions of origin were also performed. Generally, although statistical significance was found in many …

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