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Dewatering Of Biosolids By Sodium Ferrate, Andrea Rios Jan 2004

Dewatering Of Biosolids By Sodium Ferrate, Andrea Rios

Electronic Theses and Dissertations

This study was conducted to evaluate the effectiveness of the liquid form of ferrate for dewatering of biosolids from wastewater treatment facilities. Two different ferrate products prepared using calcium hypochlorite and sodium hypochlorite were used. Samples of anaerobic digested sludge and waste activated sludge with solids content of 2.1% and 0.95 %, respectively were conditioned with both products to evaluate and compare their effectiveness. Centrifugation and filtration of the sludge after conditioning were used. For centrifugation the volume reduction and the turbidity of the supernatant after centrifugation were evaluated. For filtration, the Capillary Suction Time test was used. The optimum …

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Cellular Immune Response And Gene Expression Profiling In Crohn's Dise, Claudia Romero Jan 2004

Cellular Immune Response And Gene Expression Profiling In Crohn's Dise, Claudia Romero

Electronic Theses and Dissertations

Despite the chronic debate in the etiology of crohn's disease (cd), a debilitating inflammatory bowel disease (ibd) closely related to ulcerative colitis (uc), an emerging interest in a possible mycobacterial role has been marked. Granuloma and pathologic manifestations in cd resemble aspects found in tuberculosis, leprosy and paratuberculosis. The latter, a chronic enteritis in cattle, goat, sheep and primates, which is similar to human enteritis, also known as cd, is caused by a fastidious, slow growing mycobacterium avium subspecies paratuberculosis (map). Due to the similarities between cd and paratuberculosis, a mycobacterial cause in cd has been proposed. Recent discovery of …

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Low Power Cmos Circuit Design And Reliability Analysis For Wireless Me, Md Anwar Sadat Jan 2004

Low Power Cmos Circuit Design And Reliability Analysis For Wireless Me, Md Anwar Sadat

Electronic Theses and Dissertations

A sensor node 'AccuMicroMotion' is proposed that has the ability to detect motion in 6 degrees of freedom for the application of physiological activity monitoring. It is expected to be light weight, low power, small and cheap. The sensor node may collect and transmit 3 axes of acceleration and 3 axes of angular rotation signals from MEMS transducers wirelessly to a nearby base station while attached to or implanted in human body. This dissertation proposes a wireless electronic system-on-a-single-chip to implement the sensor in a traditional CMOS process. The system is low power and may operate 50 hours from a …

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Supporting Real-Time Pda Interaction With Virtual Environment, Radhey Shah Jan 2004

Supporting Real-Time Pda Interaction With Virtual Environment, Radhey Shah

Electronic Theses and Dissertations

Personal Digital Assistants (PDAs) are becoming more and more powerful with advances in technology and are expanding their applications in a variety of fields. This work explores the use of PDAs in Virtual Environments (VE). The goal is to support highly interactive bi-directional user interactions in Virtual Environments in more natural and less cumbersome ways. A proxy-based approach is adopted to support a wide-range of handheld devices and have a multi-PDA interaction with the virtual world. The architecture consists of three components in the complete system, a PDA, a desktop that acts as a proxy and Virtual Environment Software Sandbox …

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Commissioning Of An Arc-Melting/Vacuum Quench Furnace Facility For Fabrication Of Ni-Ti-Fe Shape Memory Alloys, And The Characterization, Jagat Singh Jan 2004

Commissioning Of An Arc-Melting/Vacuum Quench Furnace Facility For Fabrication Of Ni-Ti-Fe Shape Memory Alloys, And The Characterization, Jagat Singh

Electronic Theses and Dissertations

Shape memory alloys when deformed can produce strains as high as 8%. Heating results in a phase transformation and associated recovery of all the accumulated strain, a phenomenon known as shape memory. This strain recovery can occur against large forces, resulting in their use as actuators. The goal of this project is to lower the operating temperature range of shape memory alloys in order for them to be used in cryogenic switches, seals, valves, fluid-line repair and self-healing gaskets for space related technologies. The Ni-Ti-Fe alloy system, previously used in Grumman F-14 aircrafts and activated at 120 K, is further …

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The Effect Of Internet Booking On The Central Florida Lodging Market O, Scott Smith Jan 2004

The Effect Of Internet Booking On The Central Florida Lodging Market O, Scott Smith

Electronic Theses and Dissertations

This study reviews the effect of Internet bookings on the Central Florida lodging market over the past five years. As the number of lodging accommodations booked directly by the consumer over the Internet continues to increase, the ramifications brought about by this emerging distribution channel have not been fully investigated or interpreted. This study observes how Internet-enabled distribution channel bookings have trended in occupancy and average daily rate in the Central Florida lodging market in the past five years. Specifically the author segmented the survey respondents into the lodging product service categories of budget, moderate, upscale and luxury to analyze …

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The Effects Of The Teacher's Use Of Guided Inquiry In The Fifth Grade Classroom, Deborah Strickland Spiess Jan 2004

The Effects Of The Teacher's Use Of Guided Inquiry In The Fifth Grade Classroom, Deborah Strickland Spiess

Electronic Theses and Dissertations

THIS STUDY INVESTIGATED THE EFFECTS OF THE TEACHER'S USE OF GUIDED INQUIRY IN A FIFTH GRADE SCIENCE CLASSROOM. INQUIRY IS SUPPORTED BY THE NATIONAL RESEARCH COUNCIL(2000), AND INDICATES THAT ALL STUDENTS SHOULD DEVELOP THE ABILITIES NECESSARY TO DO SCIENTIFIC INQUIRY AND DEVELOP UNDERSTANDINGS ABOUT SCIENTIFIC INQUIRY (P.21). THIS STUDY WAS A QUALITATIVE ACTION RESEARCH DESIGN, FOCUSING ON SEVENTEEN STUDENTS AND THEIR RESPONSES TO A GUIDED INQUIRY METHOD OF SCIENCE INSTRUCTION ON MATTER, ENERGY AND MOTION, AND EARTH AND SPACE. AN ANALYSIS OF STUDENTS' PERFORMANCE AND STUDENTS' ATTITUDES ABOUT SCIENCE IN THE CLASSROOM WAS CONDUCTED ABOUT EACH UNIT OF INSTRUCTION. THE …

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Characterization Of A Novel Interactor/Substrate For The Pro-Apoptotic Serine Protease Omi/Htra2, Valerie Anne Stratico Jan 2004

Characterization Of A Novel Interactor/Substrate For The Pro-Apoptotic Serine Protease Omi/Htra2, Valerie Anne Stratico

Electronic Theses and Dissertations

OmiHtrA2 is a highly conserved mammalian serine protease that belongs to the HtrA family of proteins. Omi shares homology with the bacterially expressed heat shock protease HtrA, which functions as a protease at higher temperatures and a chaperone at lower temperatures. Additionally, Omi shares sequence similarity with the mammalian homologs L56/HtrA1 and PRSP/HtrA3. Omi was first isolated as an interacting protein of Mxi2, an alternatively spliced form of the p38 stress-activated kinase, using a modified yeast two-hybrid system. Omi localizes in the mitochondria and in response to apoptotic stimuli the mature form of this protein translocates to the cytoplasm. In …

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An Approach For Computing Intervisibility Using Graphical Processing U, Judd Tracy Jan 2004

An Approach For Computing Intervisibility Using Graphical Processing U, Judd Tracy

Electronic Theses and Dissertations

In large scale entity-level military force-on-force simulations it is essential to know when one entity can visibly see another entity. This visibility determination plays an important role in the simulation and can affect the outcome of the simulation. When virtual Computer Generated Forces (CGF) are introduced into the simulation these intervisibilities must now be calculated by the virtual entities on the battlefield. But as the simulation size increases so does the complexity of calculating visibility between entities. This thesis presents an algorithm for performing these visibility calculations using Graphical Processing Units (GPU) instead of the Central Processing Units (CPU) that …

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The Speech Situation Checklist: A Normative And Comparative Investigat, Susha Verghese Jan 2004

The Speech Situation Checklist: A Normative And Comparative Investigat, Susha Verghese

Electronic Theses and Dissertations

Studies conducted over the past decades have identified the presence of a greater amount of negative emotional reaction and speech disruption in particular speech situations among children who stutter, compared to those who do not (Brutten & Vanryckeghem, 2003b; Knudson, 1939; Meyers, 1986; Trotter, 1983). Laboratory investigations have been utilized to describe the particular situations that elicit the greatest or least amount of speech concern and fluency failures. More recently, in order to deal with the limitation of laboratory research, the use of self-report tests have gained popularity as a means of exploring the extent of negative emotional reaction and …

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Factors Associated With Retention Rates In Career And Technical Educat, Jo Ann Whiteman Jan 2004

Factors Associated With Retention Rates In Career And Technical Educat, Jo Ann Whiteman

Electronic Theses and Dissertations

There is a recognized state and national shortage of Career and Technical (CTE) teachers; in certain school districts or by subject area, it is defined as a "Critical Shortage". At the same time, both statewide and nationally, the number of teacher preparation programs for Career and Technical Education (CTE) teachers has decreased. To alleviate the shortage and increase access many Career and Technical Education (CTE) teacher preparation programs use the web. This study examined retention rates in courses from Fall 1997 through Fall 2003 within web-based courses in a CTE teacher preparation program at the University of Central Florida to …

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Image Based View Synthesis, Jiangjian Xiao Jan 2004

Image Based View Synthesis, Jiangjian Xiao

Electronic Theses and Dissertations

This dissertation deals with the image-based approach to synthesize a virtual scene using sparse images or a video sequence without the use of 3D models. In our scenario, a real dynamic or static scene is captured by a set of un-calibrated images from different viewpoints. After automatically recovering the geometric transformations between these images, a series of photo-realistic virtual views can be rendered and a virtual environment covered by these several static cameras can be synthesized. This image-based approach has applications in object recognition, object transfer, video synthesis and video compression. In this dissertation, I have contributed to several sub-problems …

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Hybrid And Hierarchical Image Registration Techniques, Dongjiang Xu Jan 2004

Hybrid And Hierarchical Image Registration Techniques, Dongjiang Xu

Electronic Theses and Dissertations

A large number of image registration techniques have been developed for various types of sensors and applications, with the aim to improve the accuracy, computational complexity, generality, and robustness. They can be broadly classified into two categories: intensity-based and feature-based methods. The primary drawback of the intensity-based approaches is that it may fail unless the two images are misaligned by a moderate difference in scale, rotation, and translation. In addition, intensity-based methods lack the robustness in the presence of non-spatial distortions due to different imaging conditions between images. In this dissertation, the image registration is formulated as a two-stage hybrid …

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Predicting Licensing Examination Performance With Cognitive Style And Reactive Behavior Pattern Assessments, Daniel Paul Combs Jan 2004

Predicting Licensing Examination Performance With Cognitive Style And Reactive Behavior Pattern Assessments, Daniel Paul Combs

Electronic Theses and Dissertations

Candidates for Florida real estate sales associate licensure responded to a two-part questionnaire based on William A. Long’s Reactive Behavior Patterns Theory and Robert J. Sternberg’s Triarchic Theory of Intelligence. Examination scores were converted to a dichotomous pass/fail variable based on the Florida Real Estate Commission-mandated cut-off score of 75 correctly answered questions out of 100. The candidates’ responses to the questionnaire comprising the Long-Dziuban Inventory and the Cognitive Strengths Task List based on Sternberg’s theory, were crosstabulated with pass/fail to identify differential passing proportions, if any, based on reactive behavior pattern and/or cognitive strength. An ANOVA procedure was used …

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Polarimetric Characterization Of Random Electromagnetic Beams And Applications, Mircea Mujat Jan 2004

Polarimetric Characterization Of Random Electromagnetic Beams And Applications, Mircea Mujat

Electronic Theses and Dissertations

Polarimetry is one of the principal means of investigating the interaction of light with matter. Theoretical models and experimental techniques are presented in this dissertation for polarimetric characterization of random electromagnetic beams and of signatures of random media in different scattering regimes and configurations. The degree of polarization rather than the full description of the state of polarization is of interest in multiple scattering and free space propagation where the statistical nature and not the deterministic component of light bears the relevant information. A new interferometric technique for determining the degree of polarization by measuring the intensity fluctuations in a …

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The New Man And The New Lad: Hegemonic Masculinities In Men's Lifestyle Magazines, Ashley Michelle Elmore Jan 2004

The New Man And The New Lad: Hegemonic Masculinities In Men's Lifestyle Magazines, Ashley Michelle Elmore

Electronic Theses and Dissertations

Men are bombarded with contradictory masculine imagery in the media. The perfect man must be aggressive but not violent, sensitive but not emotional, healthy, active and smart without being an idealist, overachiever or too bookish. Heterocentric male focused lifestyle magazines rival women’s magazines in number and availability. Some men look to these images as a tool by which to gauge their masculinity and learn their social role performance. This inquiry includes a content analysis of four major men's lifestyle magazines over a 12-month period in which four new masculinities: certitude, irony, new sexism and double voicing were critiqued. Elements of …

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The United Nations Fund For Population Activities: Changing The Direction Of The Total Fertility Rate In Developing Nations, Michaela Fazecas Jan 2004

The United Nations Fund For Population Activities: Changing The Direction Of The Total Fertility Rate In Developing Nations, Michaela Fazecas

Electronic Theses and Dissertations

This thesis builds on previous United Nations’ research investigating factors affecting the Total Fertility Rate (TFR) in six (6) states: Burkina Faso, Mexico, Morocco, Nepal, the Philippines, and Uganda. The present research, however, provides a broader assessment of the TFR and the potential causes of its decline by examining countries across nine (9) regions of the world – sub-Saharan Africa, Latin America, South Asia, East Asia, the Middle East and North Africa, the Caribbean, the Pacific Islands, Eastern and Southeastern Europe, and the former Soviet Socialist Republics of the Commonwealth of Independent States. The present analyses are also conducted over …

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Quadratic Spatial Soliton Interactions, Ladislav Jankovic Jan 2004

Quadratic Spatial Soliton Interactions, Ladislav Jankovic

Electronic Theses and Dissertations

Quadratic spatial soliton interactions were investigated in this Dissertation. The first part deals with characterizing the principal features of multi-soliton generation and soliton self-reflection. The second deals with two beam processes leading to soliton interactions and collisions. These subjects were investigated both theoretically and experimentally. The experiments were performed by using potassium niobate (KNBO3) and periodically poled potassium titanyl phosphate (KTP) crystals. These particular crystals were desirable for these experiments because of their large nonlinear coefficients and, more importantly, because the experiments could be performed under non-critical-phase-matching (NCPM) conditions. The single soliton generation measurements, performed on KNBO3 by launching the …

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Stability And Recovery Of Rna In Biological Stains, Mindy Eileen Setzer Jan 2004

Stability And Recovery Of Rna In Biological Stains, Mindy Eileen Setzer

Electronic Theses and Dissertations

In theory, RNA expression patterns, including the presence and relative abundance of particular RNA species, provide cell and tissue specific information that could be of use to forensic scientists. An mRNA based approach could allow the facile identification of the tissue components present in a body fluid stain and conceivably could supplant the battery of serological and biochemical tests currently employed in the forensic serology laboratory. Some of the potential advantages include greater test specificity, and the ability to perform simultaneous analysis using a common assay format for the presence of all body fluids of forensic interest. In this report, …

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Stable Spatial Solitons In Semiconductor Optical Amplifiers, Erdem Ultanir Jan 2004

Stable Spatial Solitons In Semiconductor Optical Amplifiers, Erdem Ultanir

Electronic Theses and Dissertations

A spatial soliton is a shape invariant self guided beam of light or a self induced waveguide. Spatial solitons appear as a result of the balance of diffraction and nonlinear focusing in a system. They have been observed in many different conservative media in the last couple of years. Solitons are ubiquitous, because of the probability of using their interactions in optical data processing, communications etc. Up to now due to the power required to generate the solitons, and the response times of the soliton supporting media, these special waves of nature could not penetrate the applications arena. Semiconductors, with …

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A Study Of The Influence Vocational Education Has On Students' Ultimate Academic Success, Margaret Mary Gunderson Jan 2004

A Study Of The Influence Vocational Education Has On Students' Ultimate Academic Success, Margaret Mary Gunderson

Electronic Theses and Dissertations

The purpose of this study is to determine if vocational/business education has an influence on a student's ultimate academic achievement--high school graduation. This study consists of comparing students with no vocational/business education experiences to students with some degree of vocational/business education. The cohort group started high school during the 1999-2000 school year, had earned a GPA of 2.5 or lower at the end of the freshman year (May 2000) and finished high school prior to the start of the 2003-2004 school year. There were 322 students identified in the initial cohort group. In completing this study, the following procedures were …

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An Investigation Of The Impact Of Sandplay Therapy On Mental Health Status And Resiliency Attitudes In Mexican Farmworker Women, Ximena Elizabeth Mejia Jan 2004

An Investigation Of The Impact Of Sandplay Therapy On Mental Health Status And Resiliency Attitudes In Mexican Farmworker Women, Ximena Elizabeth Mejia

Electronic Theses and Dissertations

This study investigated the impact that sandplay therapy sessions had on Mexican farmworker women's mental health status and resilience attitudes. The participants of this study were 40 women who were born in various states in Mexico and presently reside in rural Central Florida. Twenty women participated in the control group and twenty women participated in the treatment group. The impact sandplay therapy has on participants' mental health status was measured by Outcome Questionnaire (OQ-45), which assesses progress in therapy; and Resiliency Attitudes Scale (R.A.S.), which determines resiliency attitudes. The study also includes twenty participants' transcriptions of their individual sessions to …

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Aggression In Lesbian And Bisexual Relationships, Jennifer Rae Parham Jan 2004

Aggression In Lesbian And Bisexual Relationships, Jennifer Rae Parham

Electronic Theses and Dissertations

For years, researchers, clinicians, and those working with victims/survivors of domestic abuse have overlooked the issue of same-sex partner aggression among lesbians and bisexual women. Through in-depth interviews with 19 women who identify themselves as either lesbian or bisexual, information was documented in this study demonstrating the severity of issues of power and control among some same-sex partners, as well as some if the dynamics that are unique to same-sex abusive relationships. Patterns of abuse within same-sex relationships often mirror those that are so commonly associated with partner aggression among heterosexual couples, and therefore demonstrate not only the need for …

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A Study Of Why Older People 65+ Do Or Do Not Exercise, Nancy Mccoin Williams Jan 2004

A Study Of Why Older People 65+ Do Or Do Not Exercise, Nancy Mccoin Williams

Electronic Theses and Dissertations

This qualitative study uses interviews to examine factors explaining why 20 elderly individuals from a variety of occupations and still living in the community independently did or did not exercise. Within the limits of this qualitative study, the reasons elderly participants gave for avoiding exercise included fear of injury, joint pain, poor health, complications from various degenerative diseases, and a lack of enjoyment of exercise. The reasons for exercising included necessity due to post-heart attack motivation, work-site exercise program or equipment availability, opportunity to habituate work-related tasks, spouse support, history of exercise experience, ability to exercise without injury, enjoyment of …

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Explaining Partisan Change Among Catholics In The American Electorate, Christopher Vincent, Muro Jan 2004

Explaining Partisan Change Among Catholics In The American Electorate, Christopher Vincent, Muro

Electronic Theses and Dissertations

This thesis examines data from the National Election Studies in order to assess the significant determinants of the political behavior of Catholics in the American electorate. A complex array of variables including religious commitment, generational differences, social status, and policy attitudes account for limited change in partisan alignment among American Catholics. The analyses expose the long-term, durable nature of partisan attachment, as older generation Catholics who register as actively committed to their religion also remain committed Democrats. Therefore, older Catholics have not been part of the broader ideological realignment which has taken place among other religious adherents, namely evangelical and …

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Social Underdevelopment In Sub-Saharan Africa, Michelle L. Wingo Jan 2004

Social Underdevelopment In Sub-Saharan Africa, Michelle L. Wingo

Electronic Theses and Dissertations

For the past thirty years Africa has produced a more noticeably inferior reserve of human capital than other developing regions. This is puzzling because at the inception of independence, the future of Africa looked promising. However, during the 1970s both the political and economic situation in Africa began to deteriorate, and since 1980, the aggregate per capita GDP in sub-Saharan Africa has declined at almost one percent per fiscal year. Thirty-two countries are poorer now than they were twenty years ago, and sub-Saharan Africa is now the lowest-income region in the world despite the fact that during the last two …

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Population Churn: The Migration Flow Of Florida, Marguerite Cashen Jan 2004

Population Churn: The Migration Flow Of Florida, Marguerite Cashen

Electronic Theses and Dissertations

Recent research has focused attention on the concerns of migration in and out of Florida and within the counties themselves. In 1949, Cape Canaveral was established and the boom was on. The character of the state dramatically transformed after 1965, when plans were announced to convert twenty-seven thousand acres of swampland into Walt Disney World. Since then, Orlando's evolution is divided into two eras: before and after Walt Disney World. Orlando has changed from a quiet town whose function was to service the surrounding citrus growing regions in a sparsely populated Orange County to a booming metropolis. Has the growth …

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A Profile Of The Literacy Practices Of K-5 Central Florida Teachers Of, Stephanie Cowern Jan 2004

A Profile Of The Literacy Practices Of K-5 Central Florida Teachers Of, Stephanie Cowern

Electronic Theses and Dissertations

The problem of this study was to develop a literacy teaching profile of the 2004-2005 Teachers of the Year in Kindergarten through grade 5 in four central Florida school districts. Of primary interest was the extent to which these teachers indicated their use of exemplary literacy practices as defined using the domains and indicators of the National Exemplary Literacy Teacher Assessment (NELTA). The NELTA results were analyzed using frequencies and percentages. The results of the NELTA were also evaluated and discussed when total length of years teaching, and length of years at present grade level were considered. The data were …

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Gravity Fails, Kereth Cowe-Spigai Jan 2004

Gravity Fails, Kereth Cowe-Spigai

Electronic Theses and Dissertations

Gravity Fails is a collection of four short stories and two memoirs that explore the ways in which characters adjust and fit into to a world that is destructive, fragmented and sometimes alien. Many of these pieces deal not with the moment of crisis, but with the aftermath. In "Gravity Fails," the young Danielle struggles to feel safe after the violent murder of her mother. Eliza Morrison negotiates the disappearance of her husband in "More Colors." "Following Rebecca" chronicles a woman's return to normalcy after her alcoholic husband divorces her. These characters are not happy; they are not healthy. Their …

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An Analysis Of The Aspiring Principal Preparation Programs Provided By, Deborah Juusela Jan 2004

An Analysis Of The Aspiring Principal Preparation Programs Provided By, Deborah Juusela

Electronic Theses and Dissertations

The purpose of the study was to identify the basis of the aspiring principal preparation program (appp) components florida school districts provide to their aspiring principals and their relationship, if any, to the state and isllc standards. A total of 50 school districts in florida participated in this study. The research was guided by the following questions: to what extent do the florida school districts provide a formal appp to their current assistant principals? (b) upon what are the formal appps for current assistant principals based: the florida principal competencies (fpcs), the interstate school leaders licensure consortium (isllc) standards, or …

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