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Title: EFFECTS OF A BONUS ON QUALITY IMPROVEMENT FOR PRE-SCHOOL CLASSROOM EDUCATORS.
Creator: Wilkins, Ilene, Martin, Suzanne, University of Central Florida
Abstract / Description: Interest in teacher effectiveness and merit pay has continued to be a high priority for major stakeholders in the field of education as well as the public. The focus of this research was to test the hypothesis that the implementation of a classroom bonus plan would improve the observable attributes and behaviors of teaching that have been determined to be effective in improving student learning. Specifically, the study was conducted to measure intentional teacher-student interactions,...
Show moreInterest in teacher effectiveness and merit pay has continued to be a high priority for major stakeholders in the field of education as well as the public. The focus of this research was to test the hypothesis that the implementation of a classroom bonus plan would improve the observable attributes and behaviors of teaching that have been determined to be effective in improving student learning. Specifically, the study was conducted to measure intentional teacher-student interactions, classroom quality, environment and organization as well as emotional and instructional support in Pre-K classrooms as measured by Classroom Assessment Scoring System (CLASS). During a summer Voluntary PreK program, six eligible classroom teams (teacher and teacher assistant) were randomly divided into either a bonus or non-bonus group. A pre- and post-CLASS was completed on each classroom team of participants to evaluate the quality of their instruction. The CLASS score assesses team versus individual participation, resulting in a compiled score based on the performance of all classroom staff members, i.e., teacher and teacher assistant. There was no statistical significance of the CLASS post-assessment score between the bonus and non-bonus group. However, two of the four bonus group participant teams achieved the targeted scores needed to receive a bonus. None of the non-bonus group achieved the targeted score. Additionally, pre- and post-assessment data for the entire student population of the Agency Summer VPK program was examined. There was no significance in student post-assessment scores between the three groups (bonus, non-bonus, and non-participants).
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Date Issued: 2010
Identifier: CFE0003473, ucf:48971
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0003473

Title: THE RELATIONSHIP BETWEEN THE STERLING QUALITY FRAMEWORK AND STUDENT ACHIEVEMENT IN ONE FLORIDA SCHOOL DISTRICT.
Creator: Short, James, Taylor, Rosemarye, University of Central Florida
Abstract / Description: The focus of this research was to determine the relationship, if any, between student achievement and the implementation of the Sterling Quality Management System in a southwest Florida school district. A quantitative analysis focused on three sources of data. Two surveys provided by the Florida Sterling Council were used to collect data from school based personnel and student achievement gain scores obtained from the Florida DOE School Accountability Report 2005-2009. In this study, little...
Show moreThe focus of this research was to determine the relationship, if any, between student achievement and the implementation of the Sterling Quality Management System in a southwest Florida school district. A quantitative analysis focused on three sources of data. Two surveys provided by the Florida Sterling Council were used to collect data from school based personnel and student achievement gain scores obtained from the Florida DOE School Accountability Report 2005-2009. In this study, little positive correlation was found between perceived implementation of Sterling practices and student achievement gains. Of a possible score of 5, the total mean implementation score across all groups was found to be 4.14. This meant that the perceived level of Sterling implementation among respondents overall was very high. No significant correlation was found between the total average Sterling implementation mean score and student achievement gains (school points) made between 2005 and 2009. Overall, very few correlations were found to be statistically significant. This suggested the lack of a linear relationship between Sterling implementation and student achievement gains in the schools in the study Following are recommendations for future research. 1. This study could be repeated using a population of multiple school districts in Florida or in different states. 2. This study could be repeated using different measures of student achievement, such as end of course exam results, SAT or ACT scores, or achievement in Advanced Placement or International Baccalaureate programs in high schools. 3. This study could be repeated with a population of administrators that includes all school principals and assistant principals. 4. This study could be repeated in a school district that has achieved the Sterling Quality award. 5. This study could be repeated to determine a relationship between Sterling Quality and other school effectiveness measures, such as parent involvement, community support, and teacher retention. 6. Determine the relationship if any that the implementation of Sterling Quality practices at the district level has on student achievement.
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Date Issued: 2010
Identifier: CFE0003441, ucf:48416
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0003441

Title: EXAMINING THE GENERAL QUALITY OF EARLY CHILDHOOD EDUCATION AND STRUCTURAL VARIABLES IN SUPPORT OF EARLY CHILDHOOD INCLUSION IN BEIJING, CHINA.
Creator: Hu, Bi Ying, Cross, Lee, University of Central Florida
Abstract / Description: The primary purpose of this study was to (a) explore the global quality of early childhood programs within the Chinese socio-cultural context, and (b) examine the effects of teachers' years of experience, degree, major, and class size on teachers' perceptions of developmentally appropriate practices, inclusion, and training needs in order to provide services for children with disabilities in regular classrooms. The researcher completed observations in 40 early childhood classrooms...
Show moreThe primary purpose of this study was to (a) explore the global quality of early childhood programs within the Chinese socio-cultural context, and (b) examine the effects of teachers' years of experience, degree, major, and class size on teachers' perceptions of developmentally appropriate practices, inclusion, and training needs in order to provide services for children with disabilities in regular classrooms. The researcher completed observations in 40 early childhood classrooms using the Early Childhood Environment Rating Scale- Revised (ECERS-R). Results from classroom observations revealed that the global quality of the early childhood learning environment was between minimum and good. Areas that were in need of improvement included materials, time for free play, and provisions for children with disabilities. In addition, 276 teachers from 12 inclusion pilot kindergartens in Beijing completed 3 surveys. Teachers' responses to the developmentally appropriate practices survey revealed a gap between teachers' self-reported developmentally appropriate beliefs and activities. Further, MANOVA results indicated that both class size and years of teaching experience contributed to the differences between teachers. In surveying teachers' inclusion perceptions, MANOVA results suggested that only class size contributed to the differences between teachers. A discriminant function analysis was performed as a follow-up procedure to determine which of the independent variables contributed most to group differences. Moreover, the researcher found that no variables made a difference to teachers' perceived training needs for inclusion. Implications of current study findings for teacher preparation, future research, and policy formation will be discussed.
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Date Issued: 2009
Identifier: CFE0002699, ucf:48216
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0002699

Title: A QUALITATIVE CASE STUDY OF NOVICE KENYAN PRIMARY SCHOOL TEACHERS: WHAT MESSAGES TRANSMITTED BY THE TEACHER TRAINING COLLEGES ARE INTERNALIZED AND APPLIED?.
Creator: Kranz, Carol, Biraimah, Karen, University of Central Florida
Abstract / Description: The method of instruction and the formal curriculum within two Kenyan teacher training colleges were studied in order to discover which messages regarding pedagogical practice are internalized within novice Kenyan primary school teachers and then actualized within their classrooms. An educational connoisseurship approach was utilized to give descriptive, interpretive, evaluative, and thematic insight. Three data streams were collected through interview, observation, and design evaluation in...
Show moreThe method of instruction and the formal curriculum within two Kenyan teacher training colleges were studied in order to discover which messages regarding pedagogical practice are internalized within novice Kenyan primary school teachers and then actualized within their classrooms. An educational connoisseurship approach was utilized to give descriptive, interpretive, evaluative, and thematic insight. Three data streams were collected through interview, observation, and design evaluation in order to establish structural corroboration and internal validity. The study found that the method of instruction by the teacher training college faculty was teacher-centered and utilized lower order cognitive methodology. Though the formal curriculum design was strong, it too promoted lower cognitive processes. These two messages, teacher-centered pedagogies and lower cognitive processes, are being internalized and applied by the novice teachers and maybe affecting the quality of education in Kenyan schools. The results of this study suggest that pedagogical skills promoting higher cognitive levels should be developed through in-service training in Kenyan training colleges and primary schools as a way to improve the quality of education in this country.
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Date Issued: 2011
Identifier: CFE0003883, ucf:48729
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0003883

Title: Essays on Marketing Strategies in the Context of Interdependent Consumption.
Creator: Talebi Ashoori, Minoo, Stock, Axel, Liu, Lin, Mao, Huifang, Caputo, Michael, University of Central Florida
Abstract / Description: This dissertation consists of two essays in which I study the impact of two interdependent consumerbehaviors, fairness concerns and exclusivity seeking, on a companys marketing strategiesand profits specifically in a context where it tries to expand its clientele with the objective of generatingrepeat purchases, for example by running deals on daily deal platforms. In the first essay,I examine the impact of customers fairness concerns on the profitability of a company runningpromotions on...
Show moreThis dissertation consists of two essays in which I study the impact of two interdependent consumerbehaviors, fairness concerns and exclusivity seeking, on a companys marketing strategiesand profits specifically in a context where it tries to expand its clientele with the objective of generatingrepeat purchases, for example by running deals on daily deal platforms. In the first essay,I examine the impact of customers fairness concerns on the profitability of a company runningpromotions on daily deal platforms. With the prevalence of social media and the internet, informationabout such targeted promotions can become available to all consumers including those whodid not have access to the platform and paid a full-price. Conducting a laboratory experiment,I demonstrate that knowledge about targeted promotions often leads to post-promotional fairnessconcerns among these consumers resulting in an increased tendency to switch providers. Incorporatingthe results of the experiment in a two-period game-theoretic model I analyze the impactof customers post-promotional fairness concerns on the profits of quality differentiated companieswho compete by running targeted promotions. I find that the low quality provider always suffersfrom consumers sensitivity to unfairness. Contrary, I show that the high quality provider can counterintuitivelybenefit from consumers fairness concerns as long as its quality advantage is not toolarge. Furthermore, I analyze how profits are impacted when information about the targeted dealsleaks to non-targeted customers who would have bought at the regular price. I find that, counterintuitively,competing firms profits increase with leakage. In the second essay of this dissertation, Istart with the observation that many platform members are new customers and are uncertain aboutthe quality of the companys product or service until they consume it. In such a context, I examinea high quality sellers optimal signaling strategy in a market where consumers prefer to purchase ascarce product due to desire for exclusivity or to receive a service in a non-crowded environmentdue to better experience and service delivery. Utilizing a repeat purchase signaling model I show that, consistent with prior literature, the high quality firm signals its quality by making its productscarce as well as charging a high price when consumers desire for exclusivity is high and cost ofquality is great. Contrary, I also find conditions under which the high quality firm counterintuitivelymakes its product widely available and prices it low to signal its quality. The model may inpart explain how high quality sellers market their products or services on daily deal websites.
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Date Issued: 2015
Identifier: CFE0005890, ucf:50855
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005890

Title: The Impact of Relational Coordination and the Nurse on Patient Outcomes.
Creator: Dejesus, Fanya, Andrews, Diane, Sole, Mary Lou, Neff, Donna, Yan, Xin, Unruh, Lynn, University of Central Florida
Abstract / Description: Healthcare quality remains a significant issue due to fragmentation of care in our complex U.S. healthcare systems. While coordination of care is foundational to healthcare quality as well as identified as a National Priority, fragmentation and uncoordinated care continues to afflict our systems. The purpose of this study was to explore the relationship between relational coordination and adverse nurse sensitive patient outcomes, namely hospital acquired pressure ulcers, patient falls with...
Show moreHealthcare quality remains a significant issue due to fragmentation of care in our complex U.S. healthcare systems. While coordination of care is foundational to healthcare quality as well as identified as a National Priority, fragmentation and uncoordinated care continues to afflict our systems. The purpose of this study was to explore the relationship between relational coordination and adverse nurse sensitive patient outcomes, namely hospital acquired pressure ulcers, patient falls with injury, catheter- associated urinary tract infection, and central line-associated blood stream infection. A retrospective correlational survey design using cross sectional data was used to conduct this quantitative study. An electronic relational coordination survey was sent to 1124 eligible registered nurses from 43 nursing units within a 5-hospital magnet-designated healthcare system to gather their perception of the strength of relationship and communication ties of their work team. The nurse practice environment as well as nurse education were control variables. With 406 nurses who completed the survey (36% response rate), findings revealed that the stronger relational coordination ties are amongst the healthcare team, the lower the rate of adverse nurse sensitive patient outcomes as indicated by their inverse relationship. (rs=-.31, p=.050). In a Negative Binomial Regression model, relational coordination was a significant predictor (?-1.890, p=.034) of nurse sensitive patient outcomes whereas nurse education level (p=.859) and nurse practice environment (p=.230) were not. Data affirms that relational coordination, a relationship and communication intensive form of coordination does impact patient outcomes. This research provides significant information to health care leaders and institutions with goals of improving patient care outcomes through enhancement of coordination of care and optimization of healthcare teams.
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Date Issued: 2015
Identifier: CFE0005939, ucf:50823
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005939

Title: Transforming the Aquatic Urban Landscape: Nutrient Status and Management of Stormwater Basins.
Creator: Skovira, Lindsay, Bohlen, Patrick, Fauth, John, Wang, Dingbao, University of Central Florida
Abstract / Description: Urbanization is a largely irreversible anthropogenic change that degrades environmental quality, including aquatic ecosystems. Stormwater ponds are a popular best management practice (BMP) to mitigate the effects of urban land use on downstream water bodies and contribute significantly to the total area of aquatic ecosystems in some urban watersheds. My research investigated the distribution of stormwater ponds and examined how different urban land uses influenced biophysicochemical...
Show moreUrbanization is a largely irreversible anthropogenic change that degrades environmental quality, including aquatic ecosystems. Stormwater ponds are a popular best management practice (BMP) to mitigate the effects of urban land use on downstream water bodies and contribute significantly to the total area of aquatic ecosystems in some urban watersheds. My research investigated the distribution of stormwater ponds and examined how different urban land uses influenced biophysicochemical conditions and management of those ponds in a rapidly developing suburban watershed in the Econlockhatchee River basin in Florida, USA. I evaluated limnological and ecological parameters in randomly-selected ponds distributed among three urban land-use classes: high-density residential, institutional, and roadways. Ecological measures included characterizing percentage cover and composition of littoral zone plant community and the extent of any algal mats. Limnological measures included physical parameters (pH, conductivity, dissolved oxygen, and clarity), and nutrient concentrations (nitrate, ammonium, total nitrogen, dissolved reactive phosphorus, total phosphorus, and chlorophyll a). I used a subjective management intensity index to compare pond management among land-use classes. Stormwater ponds represented 40.2% of the total area of non-forested freshwater systems in the watershed, and were dominated by residential land uses (43.7%), followed by roadways (14.7%), industrial (2.7%) and institutional (2.3%). Principal Component Analysis (PCA) revealed that ponds with higher total nitrogen (TN) and chlorophyll a (chla) concentrations had lower water clarity, and that both. TN and TP were positively correlated with chla. PCA scores for school ponds, which had the highest water clarity, differed significantly from those of expressway and residential ponds, along the first PCA axis. Repeated-measures analysis of variance showed that TN concentrations differed significantly between expressway and school ponds, with expressway ponds having TN concentrations 51.7% higher than schools. Both TP and TN varied differently through time in the different lands uses. Management intensity for removal of aquatic vegetation and algae was lower in school ponds than in expressway and residential ponds, and school ponds contained the highest abundance and diversity of vegetation. Different urban land uses had varying impacts on water quality, and more intense chemical use to control vegetation and algae was related to greater nutrient and chla concentrations and lower water clarity.
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Date Issued: 2016
Identifier: CFE0006845, ucf:51781
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006845

Title: Assessing Interactions between Estuary Water Quality and Terrestrial Land Cover in Hurricane Events with Multi-sensor Remote Sensing.
Creator: Mostafiz, Chandan, Chang, Ni-bin, Wanielista, Martin, Kibler, Kelly, University of Central Florida
Abstract / Description: Estuaries are environmentally, ecologically and environmentally important places as they act as a meeting place for land, freshwater and marine ecosystems. They are also called nurseries of the sea as they often provide nesting and feeding habitats for many aquatic plants and animals. These estuaries also withstand the worst of some natural disasters, especially hurricanes. The estuaries as well as the harbored ecosystems undergo significant changes in terms of water quality, vegetation cover...
Show moreEstuaries are environmentally, ecologically and environmentally important places as they act as a meeting place for land, freshwater and marine ecosystems. They are also called nurseries of the sea as they often provide nesting and feeding habitats for many aquatic plants and animals. These estuaries also withstand the worst of some natural disasters, especially hurricanes. The estuaries as well as the harbored ecosystems undergo significant changes in terms of water quality, vegetation cover etc. and these components are interrelated. When hurricane makes landfall it is necessary to assess the damages as quickly as possible as restoration and recovery processes are time-sensitive. However, assessment of physical damages through inspection and survey and assessment of chemical and nutrient component changes by laboratory testing are time-consuming processes. This is where remote sensing comes into play. With the help of remote sensing images and regression analysis, it is possible to reconstruct water quality maps of the estuary affected. The damage sustained by the vegetation cover of the adjacent coastal watershed can be assessed using Normalized Difference Vegetation Index (NDVI) The water quality maps together with NDVI maps help observe a dynamic sea-land interaction due to hurricane landfall. The observation of hurricane impacts on a coastal watershed can be further enhanced by use of tasseled cap transformation (TCT). TCT plots provide information on a host of land cover conditions with respect to soil moisture, canopy and vegetation cover. The before and after TCT plots help assess the damage sustained in a hurricane event and also see the progress of recovery. Finally, the use of synthetic images obtained by use of data fusion will help close the gap of low temporal resolution of Landsat satellite and this will create a more robust monitoring system.
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Date Issued: 2017
Identifier: CFE0006900, ucf:51729
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006900

Title: Dishwashing Water Recycling System and Related Water Quality Standards for Military Use.
Creator: Church, Jared, Lee, Woo Hyoung, Randall, Andrew, Duranceau, Steven, University of Central Florida
Abstract / Description: As the demand for reliable and safe water supplies increases, both water quality and available quantity are being challenged by population growth and climate change. Greywater reuse is becoming a common practice worldwide; however, in remote locations of limited water supply, such as those encountered in military installations, it is desirable to expand its classification to include dishwashing water to maximize the conservation of fresh water. Given that no standards for dishwashing...
Show moreAs the demand for reliable and safe water supplies increases, both water quality and available quantity are being challenged by population growth and climate change. Greywater reuse is becoming a common practice worldwide; however, in remote locations of limited water supply, such as those encountered in military installations, it is desirable to expand its classification to include dishwashing water to maximize the conservation of fresh water. Given that no standards for dishwashing greywater reuse by the military are currently available, the current study determined a specific set of water quality standards for dishwater recycling systems for U.S military field operations. A tentative water reuse standard for dishwashing water was developed based on federal and state regulations and guidelines for non-potable water, and the developed standard was cross-evaluated by monitoring water quality data from a full-scale dishwashing water recycling system using an innovative electrocoagulation and ultrafiltration process. A quantitative microbial risk assessment (QMRA) was also performed based on exposure scenarios derived from literature data. As a result, a specific set of dishwashing water reuse standards for field analysis (simple, but accurate) was finalized as follows: turbidity ((<)1 NTU), E. coli ((<)50 cfu mL-1), and pH (6(-)9). UV254 was recommended as a surrogate for organic contaminants (e.g., BOD5), but requires further calibration steps for validation. The developed specific water standard is the first for dishwashing water reuse and will be expected to ensure that water quality is safe for field operations, but not so stringent that design complexity, cost, and operational and maintenance requirements will not be feasible for field use. In addition the parameters can be monitored using simple equipment in a field setting with only modest training requirements and real-time or rapid sample turn-around. This standard may prove useful in future development of civilian guidelines.
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Date Issued: 2015
Identifier: CFE0005773, ucf:50061
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005773

Title: Evaluating Faculty and Staff Customer Satisfaction of a Technology Support Office in a Large University in Florida.
Creator: Jaffe, Laurence, Murray, Kenneth, Murray, Barbara, Baldwin, Gordon, Hutchinson, Cynthia, University of Central Florida
Abstract / Description: This study sought to determine customer satisfaction levels of faculty and staff with their technology support office in a large university in Florida. The focus of research was to determine if there were any differences in customer satisfaction based on four demographics: gender, faculty versus staff, educational level and age. An anonymous customer satisfaction survey included 26 Likert-type scale questions measuring 16 service quality dimensions was administered to the population. The 16...
Show moreThis study sought to determine customer satisfaction levels of faculty and staff with their technology support office in a large university in Florida. The focus of research was to determine if there were any differences in customer satisfaction based on four demographics: gender, faculty versus staff, educational level and age. An anonymous customer satisfaction survey included 26 Likert-type scale questions measuring 16 service quality dimensions was administered to the population. The 16 service quality dimensions included 10 dimensions from Zeithaml et al. (1990), five dimensions from Besterfield et al. (1995, 2003), and one dimension, overall satisfaction.Findings showed there was a statistically significant difference in two demographics, gender and faculty versus staff. Regarding gender, there were no differences in 14 of 16 dimensions examined. The two dimensions with differences were tangibles and understanding the customer, with males having lower customer satisfaction than females. Regarding faculty versus staff differences, there were no differences in all the dimensions other than the courtesy dimension for which faculty had a lower level of customer satisfaction level than staff. Regarding educational level and age, there were no differences in any of the 16 dimensions.
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Date Issued: 2014
Identifier: CFE0005186, ucf:50615
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005186

Title: The Influence of Stigma on Quality of Life and Relationship Satisfaction for Prostate Cancer Survivors and Their Partners.
Creator: Wood, Andrew, Barden, Sejal, Daire, Andrew, Lambie, Glenn, Munyon, Matthew, Conley, Abigail, University of Central Florida
Abstract / Description: The purpose of this study was to examine the relationships between stigma, quality of life (QoL), and relationships satisfaction for prostate cancer (PCa) survivors and their intimate and/or romantic partners. The investigator tested a theoretical model that stigma (as measured by the Social Impact Scale [SIS; Fife (&) Wright, 2000]) influenced QoL (as measured by the Functional Assessment of Cancer Therapy (-) Prostate [FACT-P; Esper et al., 1997] and the Functional Assessment of Cancer...
Show moreThe purpose of this study was to examine the relationships between stigma, quality of life (QoL), and relationships satisfaction for prostate cancer (PCa) survivors and their intimate and/or romantic partners. The investigator tested a theoretical model that stigma (as measured by the Social Impact Scale [SIS; Fife (&) Wright, 2000]) influenced QoL (as measured by the Functional Assessment of Cancer Therapy (-) Prostate [FACT-P; Esper et al., 1997] and the Functional Assessment of Cancer Therapy (-) General Population [FACT-GP; Cella et al., 1993]) and relationship satisfaction (as measured by the Couples Satisfaction Index [CSI; Funk (&) Rogge, 2007]) for both PCa survivors and their partners (N = 72 couples). The investigator hypothesized that stigma would have a negative influence on both QoL and relationship satisfaction. Further, exploratory research questions pertained to the influence of race on stigma, QoL, and relationship satisfaction, as well as examining difference in experiences of stigma based on demographic variables (e.g., age and income).The results of the structural equation model analyses identified that stigma negatively influenced QoL (R2 = .84, p (<) .05) and relationship satisfaction (R2 = .19, p (<) .05) for both PCa survivors and their partners. Race did not have statistically significant (p (>) .05) relationships with stigma, QoL, or relationship satisfaction and stigma was not found to be statistically different (p (>) .05) based on demographic variables. Implications of the results of the study include (a) practical implications for PCa survivors and their partners; (b) strategies for effective individual, group, and couples-based counseling; (c) need for counselor educators to prepare counselors to work with medically ill populations and cancer survivors; (d) PCa stigma instrument development; and (e) the necessity to examine research with couples in a dyadic fashion.
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Date Issued: 2015
Identifier: CFE0005742, ucf:50112
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005742

Title: Crash quality- an approach for evaluating spending on quality improvement initiatives.
Creator: Ferreira, Labiche, Hosni, Yasser A., Engineering
Abstract / Description: University of Central Florida College of Engineering Thesis; The quality movement has become popular among corporations big and small for one reason: empirical evidence suggests that quality and productivity (and hence profitability) are linked. Unfortunately, while many firms accept that quality and productivity go together, few actually track the gains associated with their quality improvement programs. Companies also tend to spend on quality improvement with no indication of estimation of...
Show moreUniversity of Central Florida College of Engineering Thesis; The quality movement has become popular among corporations big and small for one reason: empirical evidence suggests that quality and productivity (and hence profitability) are linked. Unfortunately, while many firms accept that quality and productivity go together, few actually track the gains associated with their quality improvement programs. Companies also tend to spend on quality improvement with no indication of estimation of the impact of funding on the targeted process. It would be of great value to know: (1) the impact of spending to enhance the product/process quality level, and (2) the point at which expenditures for quality improvement are not economical. This research involves modeling the quality level of a product composed of integrated components/processes and the costs associated with quality improvement. Presented in this research is a methodology for determining the point at which the target quality level is reached. This point signifies when future spending should be re-directed. The research defines this point as the "Crash Quality Point (CQP)." Cases of a single process level and double level three-stage process are modeled to conceptualize CQP. The finding from the output analysis reveal that the quality level approaches the target level at varying points in time. Any spending beyond this point does not have an impact on the quality level compared to the period prior to the Crash Quality Point. Spending past this point is futile and these funds could be spent on the quality improvement projects. The special case modeled also illustrates the use of this tool in the selection of processes for improvements based on the quality level of the process. This is an added advantage in scenarios where funds are limited and management is constrained to improve process quality with limited funds. Using a real world example validates the proposed CQP methodology. The results of the validation indicate that the model developed can assist managers in forecasting the budget requirements for quality spending based on the quality improvement goals. The tool also enables managers to estimate the point in time at which allocations of funds may be directed for process reengineering. The CQP method will enable quality improvement professionals to determine the economical viability and the limits in expenditures on quality improvement. It enables managers to evaluate spending alternatives and approximate when the point of diminishing return is reached.
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Date Issued: 2000
Identifier: CFR0011594, ucf:53046
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFR0011594

Title: Development of Treatment Train Techniques for the Evaluation of Low Impact Development in Urban Regions.
Creator: Hardin, Mike, Wanielista, Martin, Cooper, David, Randall, Andrew, University of Central Florida
Abstract / Description: Stormwater runoff from urban areas is a major source of pollution to surface water bodies. The discharge of nutrients such as nitrogen and phosphorus is particularly damaging as it results in harmful algal blooms which can limit the beneficial use of a water body. Stormwater best management practices (BMPs) have been developed over the years to help address this issue. While BMPs have been investigated for years, their use has been somewhat limited due to the fact that much of the data...
Show moreStormwater runoff from urban areas is a major source of pollution to surface water bodies. The discharge of nutrients such as nitrogen and phosphorus is particularly damaging as it results in harmful algal blooms which can limit the beneficial use of a water body. Stormwater best management practices (BMPs) have been developed over the years to help address this issue. While BMPs have been investigated for years, their use has been somewhat limited due to the fact that much of the data collected is for specific applications, in specific regions, and it is unknown how these systems will perform in other regions and for other applications. Additionally, the research was spread across the literature and performance data was not easily accessible or organized in a convenient way. Recently, local governments and the USEPA have begun to collect this data in BMP manuals to help designers implement this technology. That being said, many times a single BMP is insufficient to meet water quality and flood control needs in urban areas. A treatment train approach is required in these regions. In this dissertation, the development of methodologies to evaluate the performance of two BMPs, namely green roofs and pervious pavements is presented. Additionally, based on an extensive review of the literature, a model was developed to assist in the evaluation of site stormwater plans using a treatment train approach for the removal of nutrients due to the use of BMPs. This model is called the Best Management Practices Treatment for Removal on an Annual basis Involving Nutrients in Stormwater (BMPTRAINS) model.The first part of this research examined a previously developed method for designing green roofs for hydrologic efficiency. The model had not been tested for different designs and assumed that evapotranspiration was readily available for all regions. This work tested this methodology against different designs, both lab scale and full scale. Additionally, the use of the Blaney-Criddle equation was examined as a simple way to determine the ET for regions where data was not readily available. It was shown that the methods developed for determination of green roof efficiency had good agreement with collected data. Additionally, the use of the Blaney-Criddle equation for estimation of ET had good agreement with collected and measured data.The next part of this research examined a method to design pervious pavements. The water storage potential is essential to the successful design of these BMPs. This work examined the total and effective porosities under clean, sediment clogged, and rejuvenated conditions. Additionally, a new type of porosity was defined called operating porosity. This new porosity was defined as the average of the clean effective porosity and the sediment clogged effective porosity. This porosity term was created due to the fact that these systems exist in the exposed environment and subject to sediment loading due to site erosion, vehicle tracking, and spills. Due to this, using the clean effective porosity for design purposes would result in system failure for design type storm events towards the end of its service life. While rejuvenation techniques were found to be somewhat effective, it was also observed that often sediment would travel deep into the pavement system past the effective reach of vacuum sweeping. This was highly dependent on the pore structure of the pavement surface layer. Based on this examination, suggested values for operating porosity were presented which could be used to calculate the storage potential of these systems and subsequent curve number for design purposes.The final part of this work was the development of a site evaluation model using treatment train techniques. The BMPTRAINS model relied on an extensive literature review to gather data on performance of 15 different BMPs, including the two examined as part of this work. This model has 29 different land uses programmed into it and a user defined option, allowing for wide applicability. Additionally, this model allows a watershed to be split into up to four different catchments, each able to have their own distinct pre- and post-development conditions. Based on the pre- and post-development conditions specified by the user, event mean concentrations (EMCs) are assigned. These EMCs can also be overridden by the user. Each catchment can also contain up to three BMPs in series. If BMPs are to be in parallel, they must be in a separate catchment. The catchments can be configured in up to 15 different configurations, including series, parallel, and mixed. Again, this allows for wide applicability of site designs. The evaluation of cost is also available in this model, either in terms of capital cost or net present worth. The model allows for up to 25 different scenarios to be run comparing cost, presenting results in overall capital cost, overall net present worth, or cost per kg of nitrogen and phosphorus. The wide array of BMPs provided and the flexibility provided to the user makes this model a powerful tool for designers and regulators to help protect surface waters.
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Date Issued: 2014
Identifier: CFE0005503, ucf:50338
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005503

Title: A Case Study Evaluation of Quality Standards and Online Faculty Development.
Creator: O'Brien, Erin, Gunter, Glenda, Hartshorne, Richard, Thompson, Kelvin, Vitale, Thomas, Haggerty, Dorothy, University of Central Florida
Abstract / Description: This dissertation in practice was designed to provide an evaluation case study of two institutions, one college and one university, in the field of online learning and quality assurance. The writer evaluated these two institutions of higher learning to discover what online teaching criteria are required and what quality assurance processes are being used to assess the quality of the institutions' online courses. An analysis of the data revealed that both institutions were at the appropriate...
Show moreThis dissertation in practice was designed to provide an evaluation case study of two institutions, one college and one university, in the field of online learning and quality assurance. The writer evaluated these two institutions of higher learning to discover what online teaching criteria are required and what quality assurance processes are being used to assess the quality of the institutions' online courses. An analysis of the data revealed that both institutions were at the appropriate stage of development, support, training and quality assurance measures for their sizes, online populations and for the length of time they have been involved in online learning. Findings revealed that both institutions had a quality assurance process in place that is appropriate to their location, population and faculty. There is much to be learned by examining the two different credentialing and quality assurance approaches to online teaching and learning that these two different institutions employ for anyone interested in improving their institutions' processes.
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Date Issued: 2015
Identifier: CFE0005855, ucf:50919
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0005855

Title: Three Essays on Asset Pricing in Security and Housing Markets.
Creator: Zheng, Minrong, Chen, Honghui, Turnbull, Geoffrey, Frye, Melissa, Zahirovic-Herbert, Velma, University of Central Florida
Abstract / Description: In my first essay, I investigate the relationship between IPO long-run underperformance (Ritter, 1991) and the idiosyncratic risk puzzle (Ang, Hodrick, Xing and Zhang, 2006), the phenomenon of abnormally low returns for stocks with high idiosyncratic risk. I show that IPO long-run underperformance is in fact a manifestation of the surprisingly low returns for high idiosyncratic risk stocks. IPO underperformance disappears after I control for the idiosyncratic risk. Specifically, the...
Show moreIn my first essay, I investigate the relationship between IPO long-run underperformance (Ritter, 1991) and the idiosyncratic risk puzzle (Ang, Hodrick, Xing and Zhang, 2006), the phenomenon of abnormally low returns for stocks with high idiosyncratic risk. I show that IPO long-run underperformance is in fact a manifestation of the surprisingly low returns for high idiosyncratic risk stocks. IPO underperformance disappears after I control for the idiosyncratic risk. Specifically, the underperformance of IPO firms only presents following the months in which they are classified into the highest idiosyncratic risk quintile. On the other hand, I find that the idiosyncratic risk puzzle is magnified by the IPO underperformance for two reasons. First, IPOs are over-represented in the highest volatility quintile. Second, while stocks in the highest volatility quintile underperform in general, the intra-quintile underperformance is substantially more severe for the IPO firms. My results are robust to different sample requirements. My second essay examines school quality and quality risk capitalization when school quality is uncertain, taking into account uncertainty induced by low signal content in quality measures available to parents or stochastic quality outcomes. Extending the residential bid rent theory to the uncertainty environment, the theory shows that greater school quality increases housing prices steepens the price gradient, whereas the quality risk decreases the housing prices and flattens the price gradient. The empirical models incorporate two sources of quality risk, the variance in measured school quality and school attendance zone instability. Coupling an output based measure using the over-period average of school normalized math test scores based on the Orange County public elementary school average scores with an input based measure using student/teacher ratios provides quality measures that appear to correlate sufficiently with parents' perceptions of elementary school quality, but school peer effects play important role as well. Estimates reveal capitalization of quality and uncertainty that are consistent with theory as well as systematic patterns across housing market phases and neighborhood in income level. My third essay is a meta-analysis of the body of empirical results for school quality capitalization in house prices. One puzzling aspect of the housing markets literature is that, while public school quality is a major concern of many households, empirical studies of school quality capitalization into house prices yield mixed and sometimes inconsistent results not only across studies, but also within studies when using different school quality measures and models. These differences are reflected in the capitalization coefficient value, level of significance, and even direction of capitalization effects. This paper conducts meta-analysis of the school quality capitalization estimates to identify the factors contributing to this variation. It reveals that the way the school quality is measured matters. Peer effects measures yield less significant capitalization estimates than input and output based measures and value added measures exhibit lower significance than other output based measures. Moreover, both boundary fixed effects and neighborhood fixed effect approaches can effectively and significantly control for the influence of neighborhood amenities. Adding more school quality variables reduces the capitalization significance of individual school quality variables. The most unexpected finding is that school quality capitalization significance is much less in the South than in other regions. Also surprising is that econometric methods do not appear to be driving results.
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Date Issued: 2016
Identifier: CFE0006518, ucf:51358
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0006518

Title: INTERACTIVITY AND USER-HETEROGENEITY IN ON DEMAND BROADCAST VIDEO.
Creator: Tantaoui El Araki, Mounir, Hua, Kien A., University of Central Florida
Abstract / Description: Video-On-Demand (VOD) has appeared as an important technology for many multimedia applications such as news on demand, digital libraries, home entertainment, and distance learning. In its simplest form, delivery of a video stream requires a dedicated channel for each video session. This scheme is very expensive and non-scalable. To preserve server bandwidth, many users can share a channel using multicast. Two types of multicast have been considered. In a non-periodic multicast setting, users...
Show moreVideo-On-Demand (VOD) has appeared as an important technology for many multimedia applications such as news on demand, digital libraries, home entertainment, and distance learning. In its simplest form, delivery of a video stream requires a dedicated channel for each video session. This scheme is very expensive and non-scalable. To preserve server bandwidth, many users can share a channel using multicast. Two types of multicast have been considered. In a non-periodic multicast setting, users make video requests to the server; and it serves them according to some scheduling policy. In a periodic broadcast environment, the server does not wait for service requests. It broadcasts a video cyclically, e.g., a new stream of the same video is started every t seconds. Although, this type of approach does not guarantee true VOD, the worst service latency experienced by any client is less than t seconds. A distinct advantage of this approach is that it can serve a very large community of users using minimal server bandwidth. In VOD System it is desirable to provide the user with the video-cassette-recorder-like (VCR) capabilities such as fast-forwarding a video or jumping to a specific frame. This issue in the broadcast framework is addressed, where each video and its interactive version are broadcast repeatedly on the network. Existing techniques rely on data prefetching as the mechanism to provide this functionality. This approach provides limited usability since the prefetching rate cannot keep up with typical fast-forward speeds. In the same environment, end users might have access to different bandwidth capabilities at different times. Current periodic broadcast schemes, do not take advantage of high-bandwidth capabilities, nor do they adapt to the low-bandwidth limitation of the receivers. A heterogeneous technique is presented that can adapt to a range of receiving bandwidth capability. Given a server bandwidth and a range of different client bandwidths, users employing the proposed technique will choose either to use their full reception bandwidth capability and therefore accessing the video at a very short time, or using part or enough reception bandwidth at the expense of a longer access latency.
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Date Issued: 2004
Identifier: CFE0000085, ucf:46129
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0000085

Title: A FRAMEWORK ROADMAP FOR IMPLEMENTING LEAN SIX SIGMA IN LOCAL GOVERNMENTAL ENTITIES.
Creator: Furterer, Sandra L., Elshennawy, Ahmad K., University of Central Florida
Abstract / Description: Lean Six Sigma is an approach focused on improving quality, reducing variation and eliminating waste in an organization. The concept of combining the principles and tools of Lean Enterprise and Six Sigma has occurred in the literature over the last several years. The majority of Lean Six Sigma applications have been in private industry, focusing mostly on manufacturing applications. The literature has not provided a framework for implementing Lean Six Sigma programs applied to local...
Show moreLean Six Sigma is an approach focused on improving quality, reducing variation and eliminating waste in an organization. The concept of combining the principles and tools of Lean Enterprise and Six Sigma has occurred in the literature over the last several years. The majority of Lean Six Sigma applications have been in private industry, focusing mostly on manufacturing applications. The literature has not provided a framework for implementing Lean Six Sigma programs applied to local government. This research provides a framework roadmap for implementing Lean Six Sigma in local government. The Service Improvement for Transaction-based Entities Lean Six Sigma Framework Roadmap (SITE MAP) identifies the activities, principles, tools, and important component factors to implement Lean Six Sigma. The framework provides a synergistic approach to integrating the concepts and tools of Lean Enterprise and Six Sigma using the DMAIC (Define-Measure-Analyze-Improve-Control) problem solving approach. A case study was used to validate the framework. Lean Six Sigma was successfully applied in a 7,000-citizen municipality to reduce the cycle time of the financial administrative processes in the Finance Department of the city government.
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Date Issued: 2004
Identifier: CFE0000021, ucf:46067
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0000021

Title: EFFECT OF SOURCE WATER BLENDING ON COPPER RELEASE IN PIPE DISTRIBUTION SYSTEM: THERMODYNAMIC AND EMPIRICAL MODELS.
Creator: Xiao, Weizhong, Taylor, James S., University of Central Florida
Abstract / Description: This dissertation focuses on copper release in drinking water. Qualitative and quantitative assessment of Cu and Fe corrosion by process water quality was assessed over one year in a field study using finished waters produced from seven different treatment process and eighteen pilot distribution systems (PDSs) that were made from unlined cast iron and galvanized steel pipes, and lined cement and PVC pipes taken from actual distribution systems. Totally seven different waters were studied,...
Show moreThis dissertation focuses on copper release in drinking water. Qualitative and quantitative assessment of Cu and Fe corrosion by process water quality was assessed over one year in a field study using finished waters produced from seven different treatment process and eighteen pilot distribution systems (PDSs) that were made from unlined cast iron and galvanized steel pipes, and lined cement and PVC pipes taken from actual distribution systems. Totally seven different waters were studied, which consisted of three source waters: groundwater, surface, and simulated brackish water designated as G1, S1, and RO. With certain pre-established blending ratios, these three waters were blended to form another three waters designated as G2, G3, and G4. Enhanced surface water treatment was CFS, ozonation and GAC filtration, which was designated as S1. The CFS surface water was nanofiltered, which is S2. All seven finished waters were stabilized and chloraminated before entering the PDSs. Corrosion potential was compared qualitatively and quantitatively for all seven waters by monitoring copper and iron release from the PDSs. This dissertation consists of four major parts.(1) Copper corrosion surface characterization in which the solid corrosion products formed in certain period of exposure to drinking water were tried to be identified with kinds of surface techniques. Surface characterization indicated that major corrosion products consists of cuprite (Cu2O) as major underneath corrosion layer and tenorite (CuO), cupric hydroxide (Cu(OH)2) on the top surface. In terms of dissolution/precipitation mechanism controlling the copper concentration in bulk solution, cupric hydroxide thermodynamic model was developed.(2) Theoretical thermodynamic models were developed to predict the copper release level quantitatively based on controlling solid phases identified in part (1). These models are compared to actual data and relative assessment is made of controlling solid phases. (3) Non-linear and linear regression models were developed that accommodated the release to total copper for varying water quality. These models were verified using independent data and provide proactive means of assessing and controlling copper release in a varying water quality environment. (4) Simulation of total copper release was conducted using all possible combinations of water quality produced by blending finished waters from ground, surface and saline sources, which involves the comparison of copper corrosion potentials among reverse osmosis, nanofiltration, enhanced coagulation, lime softening, and conventional drinking water treatment.
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Date Issued: 2004
Identifier: CFE0000042, ucf:46069
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0000042

Title: THE IMPACT OF ARTHRITIS ON THE HEALTH-RELATED QUALITY OF LIFE AMONG INDIVIDUALS AT THE UNIVERSITY OF CENTRAL FLORIDA.
Creator: Garwood, Ryan E., Saleh, Suha, University of Central Florida
Abstract / Description: This purpose of the study is to examine the difference in the health-related quality of life (HRQOL) between individuals who suffer from physician-diagnosed arthritis compared with individuals who do not suffer from physician-diagnosed arthritis in a population of university students, faculty, and staff. The study sampled from a population of students, faculty, and staff at the University of Central Florida. Through the implantation of a cross-sectional ecological design, differences between...
Show moreThis purpose of the study is to examine the difference in the health-related quality of life (HRQOL) between individuals who suffer from physician-diagnosed arthritis compared with individuals who do not suffer from physician-diagnosed arthritis in a population of university students, faculty, and staff. The study sampled from a population of students, faculty, and staff at the University of Central Florida. Through the implantation of a cross-sectional ecological design, differences between the two groups were measured with a survey that measures health-related quality of life, such as the 36-Item Short Form Health Survey (SF-36). The SF-36 questionnaire was distributed to subjects through a campus-wide email system and was administered through Qualtrics, an online survey program. Literature suggests lower SF-36 scores for individuals suffering from arthritis, but is lacking in investigating the effect of arthritis on college-aged students, particularly within the 18-24 age group. The study aims to close this gap in the literature. SPSS software was used to analyze results through tests of association, like ANOVA, which measured differences in the SF-36 scores of subjects with physician-diagnosed arthritis and subjects without physician-diagnosed arthritis. Results showed a significant difference in the HR-QOL scores between individuals with arthritis and individuals without arthritis, as well as age, gender, ethnicity, and the presence of joint pain.
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Date Issued: 2017
Identifier: CFH2000189, ucf:46013
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFH2000189

Title: PREDICTING AIR QUALITY NEAR ROADWAY INTERSECTIONS THROUGH THE APPLICATION OF A GAUSSIAN PUFF MODEL TO MOVING SOURCES.
Creator: Kim, Brian, Wayson, Roger, University of Central Florida
Abstract / Description: With substantial health and economic impacts attached to many highway-related projects, it has become imperative that the models used to assess air quality be as accurate as possible. The United States (US) Environmental Protection Agency (EPA) currently promulgates the use of CAL3QHC to model concentrations of carbon monoxide (CO) near roadway intersections. This model uses steady-state and macroscopic methods to model the physical phenomena (e.g., emission rates, atmospheric dispersion, etc...
Show moreWith substantial health and economic impacts attached to many highway-related projects, it has become imperative that the models used to assess air quality be as accurate as possible. The United States (US) Environmental Protection Agency (EPA) currently promulgates the use of CAL3QHC to model concentrations of carbon monoxide (CO) near roadway intersections. This model uses steady-state and macroscopic methods to model the physical phenomena (e.g., emission rates, atmospheric dispersion, etc.) occurring at intersections. These methods are not straightforward and unintuitive for the users. Therefore, this project investigated the possibility of developing a model that is theoretically more realistic and flexible than CAL3QHC. The new model entitled, Traffic Air Quality Simulation Model (TRAQSIM), uses a microscopic approach by modeling vehicle movements and dispersion in a simulation environment. Instead of steady-state plume equations used in the CAL3QHC model, TRAQSIM uses a discrete puff methodology that can be used to model time-based dispersion of pollutants. Most of the components incorporated into TRAQSIM have been drawn from existing methodologies and therefore, are not new. However, the combination of these different methods into a single integrated model is new and presents a novel approach to such a model. Initial verification and sensitivity/trend studies of the model indicate that TRAQSIM uses reasonable/realistic traffic parameters and behaves intuitively correct. A validation study showed that TRAQSIM produces good results when compared to actual measured data with an overall R2 value of 0.605 for 11 scenarios comprising 264 data points. Although most statistical parameters showed CAL3QHC agrees better overall with measured data (R2 value of 0.721), the comparisons were mixed on a scenario-by-scenario basis; that is, CAL3QHC showed better results for 6 scenarios and TRAQSIM showed better results for 5 scenarios. Additional tests with larger datasets, which were beyond the scope of this work, could be conducted to obtain more definitive conclusions and allow further development of TRAQSIM. While CAL3QHC is a mature model that has been developed over many years, TRAQSIM is new and has much more potential for improvement. The physical parameters used in TRAQSIM allow it to be more directly (more logically) improved than the approximations used in CAL3QHC. In addition, although the fundamental-level modeling in TRAQSIM make it a more complex model internally, it is much more intuitive for the user to understand and use.
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Date Issued: 2004
Identifier: CFE0000316, ucf:46306
Format: Document (PDF)
PURL: http://purl.flvc.org/ucf/fd/CFE0000316

Water Quality (8)	+ -
quality of life (8)	+ -
quality (7)	+ -
water quality (7)	+ -
Quality (6)	+ -

Quality of Service (4)	+ -
Quality of Life (3)	+ -
Service Quality (3)	+ -
distribution system (3)	+ -
quality improvement (3)	+ -
quality of care (3)	+ -
structural equation modeling (3)	+ -
student achievement (3)	+ -
teacher quality (3)	+ -
Air Quality (2)	+ -
Bragg grating (2)	+ -
CAL3QHC (2)	+ -
CLASS (2)	+ -
Central Florida (2)	+ -
Classroom Quality (2)	+ -
Corrosion (2)	+ -
Customer Satisfaction (2)	+ -
Data Fusion (2)	+ -
Environmental Engineering (2)	+ -
MOVES (2)	+ -
Performance (2)	+ -
Phosphorus (2)	+ -
Quality Factor (2)	+ -
Quality Management (2)	+ -
Quality of Experience (2)	+ -

ETD Collection (123)	+ -
Honors Collection (16)	+ -

English (138)	+ -
Engilsh (1)	+ -

University of Central Florida (135)	+ -
Elshennawy, Ahmad (6)	+ -
Randall, Andrew (6)	+ -
Wan, Thomas (6)	+ -
Duranceau, Steven (5)	+ -

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