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- Title
- FINDERS KEEPERS: A COMPARATIVE STUDY INVESTIGATING TEACHING THE FLORIDA RESEARCH PROCESS FINDS MODEL THROUGH THREE DIFFERENT APPROACHES AT THE ELEMENTARY SCHOOL LEVEL.
- Creator
-
Serrell, Karen, Beile, Penny, University of Central Florida
- Abstract / Description
-
The children's taunt "Finders Keepers, Losers Weepers" gives new credence to the information search process at the elementary school level. Children keep what they find, claim it as their own, and accept information without discernment or critique. This study examines the effectiveness of teaching information literacy skills through three different approaches. The first curricular approach uses direct instruction to teach children how to do research using the Florida Research Process...
Show moreThe children's taunt "Finders Keepers, Losers Weepers" gives new credence to the information search process at the elementary school level. Children keep what they find, claim it as their own, and accept information without discernment or critique. This study examines the effectiveness of teaching information literacy skills through three different approaches. The first curricular approach uses direct instruction to teach children how to do research using the Florida Research Process FINDS Model. The second approach pairs the FINDS Model with a unit of study that is related to classroom curriculum. The third approach examines the FINDS Model in conjunction with project learning, a constructivist model based on student interest. One hundred twenty- eight third grade students attending a public elementary school in Southwest Florida during the 2008-2009 school year participated in the study. A mixed-methods research approach was used to gather data. Quantitative data was collected with an information literacy pre and post test, and an anonymous media lessons' survey about student preferences. Qualitative data were gathered through a review of student work samples and student interviews. Statistically significant gains were found between the pre to post test scores for all three groups, however no statistically significant differences were found among groups. Although quantitative data did not reveal differences among the treatment groups, qualitative findings revealed that the group taught research skills through the connection to classroom curriculum approach performed better. Thus the findings of this study support existing research which proposes that the best practice for teaching research skills to young children is through a connection to classroom curriculum.
Show less - Date Issued
- 2009
- Identifier
- CFE0002957, ucf:47963
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002957
- Title
- A FRAMEWORK TO ALIGN STRATEGY, IMPROVEMENT PERFORMANCE, AND CUSTOMER SATISFACTION USING AN INTEGRATION OF SIX SIGMA AND BALANCED SCORECARD.
- Creator
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Rodriguez, Adriana, Malone, Linda, University of Central Florida
- Abstract / Description
-
This dissertation investigated the development, implementation, and evaluation of a management methodology founded on the alignment among the strategy, performance, and customer to bring value to any organization. A case study/action research in a service organization, called Institution "Z," provided the opportunity to assess the effects of the proposed Six Sigma Scorecard (SSS) methodology in the productivity indicators (measured by cycle time, line capacity, and number of errors). The Case...
Show moreThis dissertation investigated the development, implementation, and evaluation of a management methodology founded on the alignment among the strategy, performance, and customer to bring value to any organization. A case study/action research in a service organization, called Institution "Z," provided the opportunity to assess the effects of the proposed Six Sigma Scorecard (SSS) methodology in the productivity indicators (measured by cycle time, line capacity, and number of errors). The Case study/action research was conducted in three phases: Model and Concepts Design, Data Collection, and Findings. During the research, validity was pursued by using triangulation and theory to help maintain the case under research control. The observation of the SSS methodology in a real organization allowed the researcher to describe the merging process between Balanced Scorecard and Six Sigma methodology and their relationships to each other. The SSS methodology allowed identification of improvement projects that contribute to organizational strategy, implementation of strategies and provide feedback to the top level of management establishing alignment at three organizational levels – corporate, business, and functional. The results of the implementation of the SSS methodology in Institution Z showed a 40% improvement of the cycle time of the auto credit process, a 500% increase in the capacity of the process, and 65% decrease in the number of non-added value activities. During the same period of time, the BSC indicators showed a positive impact, specifically one financial indicator known as Level of Intermediation or GIC grew from 30% to 42% as it was expected by the end of the SSS implementation. The demonstration of the SSS framework in a Case study justifies the need for a combined methodology that aligns strategy, performance improvement and organizational outputs in a feedback loop. More research in this area is needed, especially investigations that include assessment studies where different management approaches are used alone and combined with strategic tools, and investigations that measure the relationship between level of coherence in the three merging points of the SSS and the results reached at the performance of the organization.
Show less - Date Issued
- 2008
- Identifier
- CFE0002191, ucf:47903
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002191
- Title
- Internet Reading and Learning in a Guided Reading Context.
- Creator
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Van Allen, Jennifer, Zygouris-Coe, Vassiliki, Boote, David, Damico, Nicole, Vitale, Thomas, Butler, Lorrie, University of Central Florida
- Abstract / Description
-
Many employers are calling for high school graduates who are equipped with skills to research, manage, and process information from multiple sources and communicate effectively to others through a variety of sources. Yet, students are not being appropriately prepared with online research and comprehension skills in schools today. A major factor impacting this problem is that teachers do not possess the knowledge and skills to effectively address online research and comprehension skills in the...
Show moreMany employers are calling for high school graduates who are equipped with skills to research, manage, and process information from multiple sources and communicate effectively to others through a variety of sources. Yet, students are not being appropriately prepared with online research and comprehension skills in schools today. A major factor impacting this problem is that teachers do not possess the knowledge and skills to effectively address online research and comprehension skills in the intermediate grades. This dissertation in practice proposes a solution to this problem of practice through the design of an educative curriculum that introduces online research and comprehension skills to upper elementary students. It also provides teachers with necessary knowledge to aid their pedagogical design capacity throughout the curriculum. Prior to the development of the curriculum, a case study was conducted to determine how a fourth-grade teacher integrates digital tools during guided reading lessons to support students' development of online research and comprehension skills. The results showed that the implementation was challenging and resulted in role changes for both the teacher and students. These findings supported the design choices of the base curriculum for students, set within the guided reading framework, and educative features to support teachers.
Show less - Date Issued
- 2016
- Identifier
- CFE0006702, ucf:51909
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006702
- Title
- Using argument as a bridge between literacy and science: An intervention study in a science methods course for elementary preservice teachers.
- Creator
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Grysko, Rebeca, Zygouris-Coe, Vassiliki, Gao, Su, Roberts, Sherron, Fang, Zhihui, Bai, Haiyan, University of Central Florida
- Abstract / Description
-
The purpose of this study was to investigate the impact of an intervention on teaching science as argument within a science methods course on elementary preservice teachers' (PSTs') (a) understandings of the nature of science (NOS), (b) knowledge about argumentation, (c) complexity of their written explanations, and (d) ability to incorporate components of the framework for teaching science as argument to support students' literacy and science learning. This mixed-methods study utilized an...
Show moreThe purpose of this study was to investigate the impact of an intervention on teaching science as argument within a science methods course on elementary preservice teachers' (PSTs') (a) understandings of the nature of science (NOS), (b) knowledge about argumentation, (c) complexity of their written explanations, and (d) ability to incorporate components of the framework for teaching science as argument to support students' literacy and science learning. This mixed-methods study utilized an embedded quasi-experimental design with a treatment (n = 20) and control group (n = 25). The treatment group instructor, who completed an eight-week professional development course, implemented the intervention protocol across a 12-week period. Throughout the intervention, emphasis was placed on three key components of teaching science as argument (i.e., argument structure, public reasoning, and the language of science). The control group instructor, who did not partake in any professional learning activities, implemented business-as-usual instruction. Results from a repeated measures MANOVA revealed that, although the intervention did not have a significant impact on PSTs' knowledge of argumentation, PSTs who received the intervention did demonstrate a significant increase in their understanding of the NOS and in the complexity of their written explanations, as compared to PSTs who did not receive the intervention. Furthermore, analysis of PSTs' written lesson plans revealed several themes (i.e., opportunities for students to collect and analyze data, use of scaffolds for helping students construct scientific explanations, emphasis on the use of text to support scientific inquiry, and attention to developing students' science vocabulary) consistent with the framework for teaching science as argument. These findings contribute to a growing body of evidence illustrating the effectiveness of intentionally designed teacher preparation experiences for developing PSTs' knowledge, beliefs, and practices for supporting students' engagement in scientific explanation and argument.
Show less - Date Issued
- 2019
- Identifier
- CFE0007643, ucf:52477
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007643
- Title
- Examining the use of Background Music to Facilitate Learning.
- Creator
-
De La Mora Velasco, Efren, Hirumi, Atsusi, Bai, Haiyan, Boote, David, Sung, Stella, University of Central Florida
- Abstract / Description
-
The present work examines the use of background music (BM) to facilitate learning. This dissertation includes three independent, yet interrelated studies that synthesized scholarship to characterize the methods, and BM characteristics that have been manipulated in primary research, to identify trends, patterns and gaps. Then, it integrates findings of experimental studies that reported influences of music on cognitive performance to inform future research and theory. Lastly, this dissertation...
Show moreThe present work examines the use of background music (BM) to facilitate learning. This dissertation includes three independent, yet interrelated studies that synthesized scholarship to characterize the methods, and BM characteristics that have been manipulated in primary research, to identify trends, patterns and gaps. Then, it integrates findings of experimental studies that reported influences of music on cognitive performance to inform future research and theory. Lastly, this dissertation reports a design-based research study aimed at improving an online learning environment with the use of BM to enhance students' motivation, engagement and knowledge retention.
Show less - Date Issued
- 2019
- Identifier
- CFE0007622, ucf:52536
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007622
- Title
- DIGITAL RESEARCH CYCLES: HOW ATTITUDES TOWARD CONTENT, CULTURE AND TECHNOLOGY AFFECT WEB DEVELOPMENT.
- Creator
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Scott, Edward, Saper, Craig, University of Central Florida
- Abstract / Description
-
It has been estimated that one third of the world's population does not have access to "adequate" health care. Some 1.6 billion people live in countries experiencing "concentrated" acquired immune deficiency syndrome (AIDS) epidemics. Many countries in Africa -- and other low-income countries -- are in dire need of help providing adequate health care services to their citizens. They require more hands-on care from Western health workers -- and training so more African health workers can...
Show moreIt has been estimated that one third of the world's population does not have access to "adequate" health care. Some 1.6 billion people live in countries experiencing "concentrated" acquired immune deficiency syndrome (AIDS) epidemics. Many countries in Africa -- and other low-income countries -- are in dire need of help providing adequate health care services to their citizens. They require more hands-on care from Western health workers -- and training so more African health workers can eventually care for their own citizens. But these countries also need assistance acquiring and implementing both texts -- the body of medical information potentially available to them -- and technology -- the means by which that information can be conveyed. This dissertation looks at these issues and others from a multi-faceted approach. It combines a survey of the developers of Web sites designed for use by health workers in low-income countries and a proposal for a novel approach to communication theory, which could help improve health communication and other social marketing practices. It also includes an extensive review of literature regarding a number of topics related to these issues. To improve healthcare services in low-income countries, several things should occur. First, more health workers -- and others -- could visit African countries and other places to provide free, hands-on medical care, as this researcher's group did in Uganda. Such trips are ideal occasions for studying the cultural differences between "mzungu" (white man) and the Ugandan people. A number of useful medical texts have been written for health workers in low-income countries. Others will be published as new health information becomes available. But on what medium will they be published? Computers? Personal digital assistants? During the past 10 years the Internet became an ideal venue for conveying information. Unfortunately, people in target countries such as Uganda encounter cultural differences when such new technologies are diffused. This dissertation looks at cultural and technological difficulties encountered by people in low-income countries who attempt to diffuse information and communication technologies (ICT). Once a technology has been successfully adopted, someone will look for ways to use it to help others. There are hundreds of sites on the Internet -- built by Web developers in Western countries -- that are designed for use by health workers in low-income countries. However, these Web developers also experience cultural and technological differences, based on their knowledge of and attitudes toward best practices in their field. This research includes a survey of Web developers which determined their attitudes toward best practices in their field and tested this researcher's hypothesis that there is no significant difference among the developers' attitudes toward the content on their sites, their audience's cultural needs and the various technological needs their audience has. It was found that the Web developers agree with 17 of 18 perceived best practices and that there is a significant difference between Web developers' attitudes toward their audience's technological needs and their attitudes toward quality content and the audience's cultural needs. Creation of the survey herein resulted in this researcher generating a new way of thinking about communication theory -- called digital research cycles. The survey was based on a review of literature and is rooted in the belief that any successful communication of a computer-mediated message in the information age is a behavior which is influenced by the senders' and receivers' attitudes and knowledge about textual style, the audience, technology and the subject matter to which the message pertains.
Show less - Date Issued
- 2009
- Identifier
- CFE0002637, ucf:48218
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002637
- Title
- CONTRIBUTIONS BY INDIVIDUAL AND GROUP STRATEGIES FOR ORGANIZATIONAL LEARNING IN ARCHITECTURAL, ENGINEERING, AND CONSTRUCTION FIRMS.
- Creator
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Beaver, Robert, Kotnour, Timothy, University of Central Florida
- Abstract / Description
-
Organizations with multiple operating requirements require support functions to assist in execution of strategic goals. This effort, in turn, requires management of engineering activities in control of projects and in sustaining facilities. High level strategies include employing engineering support that consists of a project management function encompassing technical and managerial disciplines. The architecture/engineering, and construction office (AEC) is the subject of this research....
Show moreOrganizations with multiple operating requirements require support functions to assist in execution of strategic goals. This effort, in turn, requires management of engineering activities in control of projects and in sustaining facilities. High level strategies include employing engineering support that consists of a project management function encompassing technical and managerial disciplines. The architecture/engineering, and construction office (AEC) is the subject of this research. Engineering and construction oriented organizations have experienced challenges to their abilities to learn and grow. This has potential detrimental implications for these organizations if support functions cannot keep pace with changing objectives and strategy. The competitive nature and low industry margins as well as uniqueness of projects as challenges facing engineering and construction. The differentiated nature of projects tasks also creates a need for temporary and dedicated modes of operation and thereby tends to promote highly dispersed management practices that do not dovetail very well with other organizational processes. Organizational learning is a means to enhance and support knowledge management for improving performance. The problem addressed through this research is the gap between desired and achieved individual and group learning by members of the AEC, and the members' abilities to distinguish between the need for adaptive learning or innovation. This research addresses learning by individuals and groups, and the strategies employed through an empirical study (survey). A conceptual model for organizational learning contributions by individuals and groups is presented and tested for confirmation of exploitive or explorative learning strategies for individuals, and directions composed of depth and breadth of learning. Strategies for groups are tested for internal or external search orientations and directions toward the single or multi-discipline unit. The survey is analyzed by method of principal components extraction and further interpreted to reveal factors that are correlated by Pearson product moment coefficients and tested for significance for potential relationships to factors for outcomes. Correlation across dependent variables prevented interpretation of the most significant factors for group learning strategies. However, results provide possible support for direction in supporting processes that promote networking among individuals and group structures that recognize the dual nature of knowledge - that required for technical competency and that required for success in the organization. Recommendations for practitioners include adjustments to knowledge acquisition direction, promoting external collaboration among firms, and provision of dual succession pathways through technical expertise or organizational processes for senior staff.
Show less - Date Issued
- 2009
- Identifier
- CFE0002682, ucf:48194
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002682
- Title
- NEW HEURISTICS FOR THE 0-1 MULTI-DIMENSIONAL KNAPSACK PROBLEMS.
- Creator
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Akin, Haluk, Sepulveda, Jose, University of Central Florida
- Abstract / Description
-
This dissertation introduces new heuristic methods for the 0-1 multi-dimensional knapsack problem (0-1 MKP). 0-1 MKP can be informally stated as the problem of packing items into a knapsack while staying within the limits of different constraints (dimensions). Each item has a profit level assigned to it. They can be, for instance, the maximum weight that can be carried, the maximum available volume, or the maximum amount that can be afforded for the items. One main assumption is that we have...
Show moreThis dissertation introduces new heuristic methods for the 0-1 multi-dimensional knapsack problem (0-1 MKP). 0-1 MKP can be informally stated as the problem of packing items into a knapsack while staying within the limits of different constraints (dimensions). Each item has a profit level assigned to it. They can be, for instance, the maximum weight that can be carried, the maximum available volume, or the maximum amount that can be afforded for the items. One main assumption is that we have only one item of each type, hence the problem is binary (0-1). The single dimensional version of the 0-1 MKP is the uni-dimensional single knapsack problem which can be solved in pseudo-polynomial time. However the 0-1 MKP is a strongly NP-Hard problem. Reduced cost values are rarely used resources in 0-1 MKP heuristics; using reduced cost information we introduce several new heuristics and also some improvements to past heuristics. We introduce two new ordering strategies, decision variable importance (DVI) and reduced cost based ordering (RCBO). We also introduce a new greedy heuristic concept which we call the "sliding concept" and a sub-branch of the "sliding concept" which we call "sliding enumeration". We again use the reduced cost values within the sliding enumeration heuristic. RCBO is a brand new ordering strategy which proved useful in several methods such as improving Pirkul's MKHEUR, a triangular distribution based probabilistic approach, and our own sliding enumeration. We show how Pirkul's shadow price based ordering strategy fails to order the partial variables. We present a possible fix to this problem since there tends to be a high number of partial variables in hard problems. Therefore, this insight will help future researchers solve hard problems with more success. Even though sliding enumeration is a trivial method it found optima in less than a few seconds for most of our problems. We present different levels of sliding enumeration and discuss potential improvements to the method. Finally, we also show that in meta-heuristic approaches such as Drexl's simulated annealing where random numbers are abundantly used, it would be better to use better designed probability distributions instead of random numbers.
Show less - Date Issued
- 2009
- Identifier
- CFE0002633, ucf:48195
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0002633
- Title
- EVALUATION OF A QUALITY MANAGEMENT INITIATIVE AND HIV AMBULATORY SERVICES PERFORMANCE IN THAILAND.
- Creator
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Meemon, Natthani, Wan, Thomas, University of Central Florida
- Abstract / Description
-
The accomplishment of pilot implementation of the HIVQUAL-T model, an innovative HIV care quality management tool, has led to an authoritative decision to scale up the use of the model nationwide in Thailand. However, the level of implementing this model varies across target hospitals. Some hospitals have fully adopted the model by conducting quality improvement (QI) activities following performance measurement (PM) results while others have partially adopted only PM or have not used this...
Show moreThe accomplishment of pilot implementation of the HIVQUAL-T model, an innovative HIV care quality management tool, has led to an authoritative decision to scale up the use of the model nationwide in Thailand. However, the level of implementing this model varies across target hospitals. Some hospitals have fully adopted the model by conducting quality improvement (QI) activities following performance measurement (PM) results while others have partially adopted only PM or have not used this model at all. The differential level of implementation could be a contributing factor accounting for discrepancies in the quality of care across different HIV ambulatory care facilities. A cross-sectional study was conducted by using two main datasets, including Thailand's national HIV care performance results and an online survey of all public hospitals nationwide. A total of 382 hospitals responded to the survey, accounting for a response rate of 50%. A confirmatory factor analysis (CFA) method was performed to examine the validity of latent constructs developed from the diffusion of innovation theory. Structural equation modeling (SEM) approach was employed to investigate the relationship between the determinants of organizational decision-making and their contribution to organizational outcomes, under the context-design-performance framework. Furthermore, using a panel model of hospitals that reported performance results across a 3-year period, the improvement in HIV ambulatory services performance among the adopters was examined. The results indicated that two innovation attributes -relative advantage and simplicity perceived by HIV care practitioners in hospitals- were found to be positively associated with the level of the HIVQUAL-T model implementation. Two structural characteristics -interconnectedness and organizational slack- appeared to be positively associated with the level of model implementation, while rate of adoption in the region also had significant positive contribution. Ultimately, the extensiveness of the HIVQUAL-T model implementation demonstrated a proportionate impact on the variation in hospitals' HIV ambulatory services performance. It was noted that the implementers considerably improved their performance within two years of implementing the model. The study findings imply that adoption is more likely when individual practitioners assess the innovation and find it to be easy to comprehend and operate and also worthwhile to implement. Furthermore, hospitals' decision making is likely influenced by their relations to external environment. The findings suggest more emphasis on individual and hospital-level capacity building for meaningful use of this quality management initiative, accompanied by an adjustment of performance measurement software with valid, reliable, and interpretable indicators.
Show less - Date Issued
- 2011
- Identifier
- CFE0003753, ucf:48785
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0003753
- Title
- Modeling and Solving Large-scale Stochastic Mixed-Integer Problems in Transportation and Power Systems.
- Creator
-
Huang, Zhouchun, Zheng, Qipeng, Xanthopoulos, Petros, Pazour, Jennifer, Chang, Ni-bin, University of Central Florida
- Abstract / Description
-
In this dissertation, various optimization problems from the area of transportation and power systems will be respectively investigated and the uncertainty will be considered in each problem. Specifically, a long-term problem of electricity infrastructure investment is studied to address the planning for capacity expansion in electrical power systems with the integration of short-term operations. The future investment costs and real-time customer demands cannot be perfectly forecasted and...
Show moreIn this dissertation, various optimization problems from the area of transportation and power systems will be respectively investigated and the uncertainty will be considered in each problem. Specifically, a long-term problem of electricity infrastructure investment is studied to address the planning for capacity expansion in electrical power systems with the integration of short-term operations. The future investment costs and real-time customer demands cannot be perfectly forecasted and thus are considered to be random. Another maintenance scheduling problem is studied for power systems, particularly for natural gas fueled power plants, taking into account gas contracting and the opportunity of purchasing and selling gas in the spot market as well as the maintenance scheduling considering the uncertainty of electricity and gas prices in the spot market. In addition, different vehicle routing problems are researched seeking the route for each vehicle so that the total traveling cost is minimized subject to the constraints and uncertain parameters in corresponding transportation systems.The investigation of each problem in this dissertation mainly consists of two parts, i.e., the formulation of its mathematical model and the development of solution algorithm for solving the model. The stochastic programming is applied as the framework to model each problem and address the uncertainty, while the approach of dealing with the randomness varies in terms of the relationships between the uncertain elements and objective functions or constraints. All the problems will be modeled as stochastic mixed-integer programs, and the huge numbers of involved decision variables and constraints make each problem large-scale and very difficult to manage. In this dissertation, efficient algorithms are developed for these problems in the context of advanced methodologies of optimization and operations research, such as branch and cut, benders decomposition, column generation and Lagrangian method. Computational experiments are implemented for each problem and the results will be present and discussed. The research carried out in this dissertation would be beneficial to both researchers and practitioners seeking to model and solve similar optimization problems in transportation and power systems when uncertainty is involved.
Show less - Date Issued
- 2016
- Identifier
- CFE0006328, ucf:51559
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0006328
- Title
- A real-time crane service scheduling decision support system (CSS-DSS) for construction tower cranes.
- Creator
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Zavichi Tork, Amir, Madani Larijani, Kaveh, Oloufa, Amr, Tatari, Mehmet, Xanthopoulos, Petros, University of Central Florida
- Abstract / Description
-
The success of construction projects depends on proper use of construction equipment and machinery to a great extent. Thus, appropriate planning and control of the activities that rely on construction equipment could have significant effects on improving the efficiency of project operations. Cranes are the largest and most conspicuous construction equipment, widely used in typical construction sites. They play a major role in relocation of materials in horizontal and vertical directions on...
Show moreThe success of construction projects depends on proper use of construction equipment and machinery to a great extent. Thus, appropriate planning and control of the activities that rely on construction equipment could have significant effects on improving the efficiency of project operations. Cranes are the largest and most conspicuous construction equipment, widely used in typical construction sites. They play a major role in relocation of materials in horizontal and vertical directions on construction sites. Given the nature of activities relying on construction cranes in various stages of a project, cranes normally have control over the critical path of the project with the potential to create schedule bottlenecks and delaying the completion of the project. This dissertation intends to improve crane operations efficiency by developing a new framework for optimizing crane service sequence schedule. The crane service sequence problem is mathematically formulated as an NP-complete optimization problem based on the well-known Travel Salesman Problem (TSP) and is solved using different optimization techniques depending on the problem's size and complexity. The proposed framework sets the basis for developing near-real time decision support tools for on-site optimization of crane operations sequence. To underline the value of the proposed crane sequence optimization methods, these methods are employed to solve several numerical examples. Results show that the proposed method can create a travel time saving of 28% on average in comparison with conventional scheduling methods such as First in First out (FIFO), Shortest Job First (SJF), and Earliest Deadline First (EDF).
Show less - Date Issued
- 2013
- Identifier
- CFE0005078, ucf:50738
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005078
- Title
- An exploration of secondary science grade teachers' written artifacts about their experiences with an online professional development in reading research and instruction: A grounded theory study.
- Creator
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Woodhall, Carmen, Zygouris-Coe, Vassiliki, Jeanpierre, Bobby, Lambie, Glenn, Swan, Bonnie, Haggerty, Dorothy, University of Central Florida
- Abstract / Description
-
Classroom teachers deal with numerous pressures in their classrooms including students' difficulty with reading at the middle and high school levels. Often, teachers can identify the problems, but are often unable to rectify them because of a lack of understanding and support in incorporating reading as part of their content area instruction. This research was conducted to investigate the impact of a sustained, online reading professional development on the teaching practice of middle school...
Show moreClassroom teachers deal with numerous pressures in their classrooms including students' difficulty with reading at the middle and high school levels. Often, teachers can identify the problems, but are often unable to rectify them because of a lack of understanding and support in incorporating reading as part of their content area instruction. This research was conducted to investigate the impact of a sustained, online reading professional development on the teaching practice of middle school and high school science teachers who took the 14-week course. This grounded theory research used the reflective assignment, a comprehensive, 10-week, job-embedded assignment of 62 science teachers, to generate categories and themes about the reading challenges they perceived in their own classrooms, what strategies and tools they chose to remedy those challenges, and the perceived changes they saw in their students and themselves. The theory that was derived from the data speaks to how effective, job-embedded reading professional development can impact the knowledge, motivation, and instructional practice of science teachers in the classroom.
Show less - Date Issued
- 2012
- Identifier
- CFE0004618, ucf:49932
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004618
- Title
- Eighth-Grade Students Reading Nonfiction Literature on the iPad: An Exploratory Case Study.
- Creator
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Cardullo, Victoria, Zygouris-Coe, Vassiliki, Wegmann, Susan, Hoffman, Bobby, Wilson, Nance, University of Central Florida
- Abstract / Description
-
The intent of this qualitative research study was to investigate the experiences of eighth-grade readers as they read nonfiction text on an iPad for academic purposes. Analysis of the Common Core State Standards (CCSS) calls for close reading requiring readers to interact with the text to create meaning (Fisher, n.d.). With this in mind, the researcher investigated reading strategies students used to support their reading as well as what role the iPad features played in the reading process....
Show moreThe intent of this qualitative research study was to investigate the experiences of eighth-grade readers as they read nonfiction text on an iPad for academic purposes. Analysis of the Common Core State Standards (CCSS) calls for close reading requiring readers to interact with the text to create meaning (Fisher, n.d.). With this in mind, the researcher investigated reading strategies students used to support their reading as well as what role the iPad features played in the reading process. Several theoretical perspectives informed the framework for this study: (a) New Literacies theory, (b) transactional theory, (c) constructivist theory, and (d) metacognition theory. These perspectives focused on the reading comprehension strategies students used to facilitate reading comprehension while reading nonfiction text on an e-reader, specifically on an iPad. Data sources for this study included the following: (a) retrospective think alouds; (b) student questionnaire about iPad knowledge and experiences; (c) pre-study student interview; (d) post-study student interview; (e) Metacognitive Awareness of Reading Strategies Inventory (MARSI); (f) student observations; and (g) teacher interview. Pre-selection data for the collective case study participants were used to identify proficient readers who displayed confidence, competency, and control over text. The criteria used for participant selection included (a) reading skills using Lexile Levels, (b) MARSI survey, and (c) iPad use survey to determine prior knowledge of iPad. Three themes emerged in the collective case study that were directly related to the analysis. Students used a combination of (a) reading comprehension strategies, (b) nonfiction features, and (c) iPad features to support their reading of nonfiction on the iPad. Analysis of the data revealed three distinct groups for which recommendations were made: (a) classroom teachers, (b) publishers, and (c) researchers.
Show less - Date Issued
- 2013
- Identifier
- CFE0004662, ucf:49884
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004662
- Title
- Bridging the Gap Between Fun and Fitness: Instructional Techniques and Real-World Applications for Full-Body Dance Games.
- Creator
-
Charbonneau, Emiko, Laviola II, Joseph, Hughes, Charles, Tappen, Marshall, Angelopoulos, Theodore, Mueller, Florian, University of Central Florida
- Abstract / Description
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Full-body controlled games offer the opportunity for not only entertainment, but education and exercise as well. Refined gameplay mechanics and content can boost intrinsic motivation and keep people playing over a long period of time, which is desirable for individuals who struggle with maintaining a regular exercise program. Within this gameplay genre, dance rhythm games have proven to be popular with game console owners. Yet, while other types of games utilize story mechanics that keep...
Show moreFull-body controlled games offer the opportunity for not only entertainment, but education and exercise as well. Refined gameplay mechanics and content can boost intrinsic motivation and keep people playing over a long period of time, which is desirable for individuals who struggle with maintaining a regular exercise program. Within this gameplay genre, dance rhythm games have proven to be popular with game console owners. Yet, while other types of games utilize story mechanics that keep players engaged for dozens of hours, motion-controlled dance games are just beginning to incorporate these elements. In addition, this control scheme is still young, only becoming commercially available in the last few years. Instructional displays and clear real-time feedback remain difficult challenges.This thesis investigates the potential for full-body dance games to be used as tools for entertainment, education, and fitness. We built several game prototypes to investigate visual, aural, and tactile methods for instruction and feedback. We also evaluated the fitness potential of the game Dance Central 2 both by itself and with extra game content which unlocked based on performance.Significant contributions include a framework for running a longitudinal video game study, results indicating high engagement with some fitness potential, and informed discussion of how dance games could make exertion a more enjoyable experience.
Show less - Date Issued
- 2013
- Identifier
- CFE0004829, ucf:49690
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004829
- Title
- A needs analysis for K-12 school improvement projects and their use as the dissertation in practice for the professional practice education doctorate program at the University of Central Florida.
- Creator
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Biddle, Jeffrey, Boote, David, Taylor, Rosemarye, Vitale, Thomas, Hayes, Grant, Flanigan, Jacquelyn, University of Central Florida
- Abstract / Description
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This study conducted at the University of Central Florida was completed to inform the Ed. D. in Education program within the College of Education and Human Performance. The main purpose of the study was to determine the Dissertation in Practice (DiP) project types that should be allowed for use as the capstone requirement based on a needs analysis of K-12 schools and school districts. The secondary purpose was to inform the instructional design of the program to ensure the necessary skills...
Show moreThis study conducted at the University of Central Florida was completed to inform the Ed. D. in Education program within the College of Education and Human Performance. The main purpose of the study was to determine the Dissertation in Practice (DiP) project types that should be allowed for use as the capstone requirement based on a needs analysis of K-12 schools and school districts. The secondary purpose was to inform the instructional design of the program to ensure the necessary skills and knowledge required are included in the program.The study was conducted in the University of Central Florida's Ed. D. in Education program and employed a qualitative approach to a needs analysis. Interviews were conducted with two distinctly different participant groups. The first group was comprised of administrators and teacher-leaders identified by a superintendent of a rural school district in Central Florida as (")highly effective("). The second group of participants was comprised of current Ed. D. students working in K-12 education with more than 10 years' experience.This research identified specific project types that best support school improvement and should therefore be integrated into the Ed. D. in Education program as allowable project types for use as the Dissertation in Practice. The results also identified qualities of highly effective administrators and teacher-leaders that may be considered by program faculty for inclusion in the design and implementation of the curriculum for the Ed. D. in Education program.Implications of this research include using the results to inform instructional practices and the allowable DiP projects for the Ed. D. in Education program. As this study was a needs analysis that serves as a basis for program instructional decisions, the results of this study may inform other Carnegie Project on the Education Doctorate (CPED) member institutions how to modify or enhance their programs as well.The focus on this study was exclusively on K-12 education. However many students enrolled in the program work in business, government, or non-profit settings. This research could be replicated to determine improvement project types that are commonly implemented in those settings in order to better meet the needs of all students enrolled in the Ed. D. in Education program.
Show less - Date Issued
- 2014
- Identifier
- CFE0005306, ucf:50539
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0005306
- Title
- ADDRESSING NEED FOR RESEARCH-FOCUSED NURSES BY INCREASING INTEREST AND SOCIALIZATION AT THE UNDERGRADUATE LEVEL.
- Creator
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Thomas, Sarah, Norris, Anne, University of Central Florida
- Abstract / Description
-
The U.S. shortage of qualified nursing teachers and researchers is affecting national health care outcomes. Methods such as fast-tracking Baccalaureate nurses into graduate programs and embedding leadership development early into nursing curricula have been proposed to address faculty and research shortages. Early interest in nursing research careers increases likelihood of enrollment in graduate education. One way undergraduate nursing students may develop an interest in research careers is...
Show moreThe U.S. shortage of qualified nursing teachers and researchers is affecting national health care outcomes. Methods such as fast-tracking Baccalaureate nurses into graduate programs and embedding leadership development early into nursing curricula have been proposed to address faculty and research shortages. Early interest in nursing research careers increases likelihood of enrollment in graduate education. One way undergraduate nursing students may develop an interest in research careers is through a mentored apprenticeship with research-active faculty. In this thesis, the author uses an autoethnography methodology to examine the benefits that a mentored research apprenticeship model brought to her undergraduate experience. Her experience incorporated a variety of roles in an adolescent intervention program with Dr. Anne Norris (PI) at the University of Central Florida College of Nursing. Several themes about the experience were defined in the results. Early research exposure that socializes a student to the nursing research world may provide a means for addressing the nursing faculty shortage. This socialization can generate interest in a research career and promote undergraduate students with the essential tools and insights needed to pursue this career pathway. However, findings from this study suggest a student-mentor relationship early in the undergraduate education experience is essential.
Show less - Date Issued
- 2014
- Identifier
- CFH0004594, ucf:45232
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0004594
- Title
- INTERDIFFUSION BEHAVIOR OF U-MO ALLOYS IN CONTACT WITH AL AND AL-SI ALLOYS.
- Creator
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Perez, Emmanuel, Sohn, Yong-Ho, University of Central Florida
- Abstract / Description
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U-Mo dispersion and monolithic fuels embedded in Al-alloy matrix are under development to fulfill the requirements of research reactors to use low-enriched molybdenum stabilized uranium alloys as fuels. The system under consideration in this study consisted of body centered cubic (gamma) U-Mo alloys embedded in an Al structural matrix. Significant interaction has been observed to take place between the U-Mo fuel and the Al matrix during manufacturing of the fuel-plate system assembly and...
Show moreU-Mo dispersion and monolithic fuels embedded in Al-alloy matrix are under development to fulfill the requirements of research reactors to use low-enriched molybdenum stabilized uranium alloys as fuels. The system under consideration in this study consisted of body centered cubic (gamma) U-Mo alloys embedded in an Al structural matrix. Significant interaction has been observed to take place between the U-Mo fuel and the Al matrix during manufacturing of the fuel-plate system assembly and during irradiation in reactors. These interactions produce Al-rich phases with physical and thermal properties that adversely affect the performance of the fuel system and can lead to premature failure. In this study, interdiffusion and microstructural development in the U-Mo vs. Al system was examined using solid-to-solid diffusion couples consisting of U-7wt.%Mo, U-10wt.%Mo and U-12wt.%Mo vs. pure Al, annealed at 600°C for 24 hours. The influence of Si alloying addition (up to 5 wt.%) in Al on the interdiffusion microstructural development was also examined using solid-to-solid diffusion couples consisting of U-7wt.%Mo, U-10wt.%Mo and U-12wt.%Mo vs. pure Al, Al-2wt.%Si, and Al-5wt.%Si annealed at 550°C for 1, 5 and 20 hours. To further clarify the diffusional behavior in the U-Mo-Al and U-Mo-Al-Si systems, Al-rich 85.7Al-11.44U-2.86Mo, 87.5Al-10U-2.5Mo, 56.1Al-18.9Si-21.9U-3.1Mo and 69.3Al-11.9Si-18.8U (at.%) alloys were cast and homogenized at 500°C to determine the equilibrium phases of the system. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electron probe microanalysis (EPMA) and X-ray diffraction (XRD) were employed to examine the phase development in the diffusion couples and the cast alloys. In ternary U-Mo-Al diffusion couples annealed at 600°C for 24 hours, the interdiffusion microstructure consisted of finely dispersed UAl3, UAl4, U6Mo4Al43, and UMo2Al20 phases while the average composition throughout the interdiffusion zone remained constant at approximately 80 at.% Al. The interdiffusion microstructures observed by EPMA, SEM and TEM analyses were correlated to explain the observed morphological development in the interdiffusion zones. The concept of thermodynamic degrees of freedom was used to justify that, although deviations are apparent, the interdiffusion zones did not significantly deviate from an equilibrium condition in order for the observed microstructures to develop. Selected diffusion couples developed periodic bands within the interdiffusion zone as sub-layers in the three-phase regions. Observation of periodic banding was utilized to augment the hypothesis that internal stresses play a significant role in the phase development and evolution of U-Mo vs. pure Al diffusion couples. The addition of Si (up to 5 wt.%) to the Al significantly reduced the growth rate of the interdiffusion zone. The constituent phases and composition within the interdiffusion zone were also modified. When Si was present in the Al terminal alloys, the interdiffusion zones developed layered morphologies with fine distributions of the (U,Mo)(Al,Si)3 and UMo2Al20 phases. The U6Mo4Al43 phase was observed scarcely in Si depleted regions within the interdiffusion zone. The phase development and evolution of the interdiffusion zone was described in terms of thermodynamic degrees of freedom with minimal deviations from equilibrium.
Show less - Date Issued
- 2011
- Identifier
- CFE0003747, ucf:48778
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0003747
- Title
- ANTICIPATED TELEHEALTH DEVICE USAGE IN YOUNGER ADULTS.
- Creator
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Bull, Tyler, Szalma, James, University of Central Florida
- Abstract / Description
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Telehealth and telemedicine have revolutionized the healthcare system in terms of access to information and remote medical treatment. While there is a great deal of literature on current perceptions of telehealth care systems, relatively little is known about perceived user needs and acceptance of future telehealth systems. One way to assess future attitudes is to evaluate anticipated usage of telehealth devices through perceived advantages and disadvantages. Additionally, this study seeks to...
Show moreTelehealth and telemedicine have revolutionized the healthcare system in terms of access to information and remote medical treatment. While there is a great deal of literature on current perceptions of telehealth care systems, relatively little is known about perceived user needs and acceptance of future telehealth systems. One way to assess future attitudes is to evaluate anticipated usage of telehealth devices through perceived advantages and disadvantages. Additionally, this study seeks to assess the reliability of a new measure of technology acceptance that capitalizes on human motivation using self-determination theory. An online survey consisted of an original 40-item measure of motivation to use telehealth technology, the Psychosocial Impact of Assistive Devices Scale (PIADS; Jutai & Day, 1996), questions adapted from Edwards et al. (2014) about perceived advantages and disadvantages of telehealth devices, and open-ended questions about advantages, disadvantages, and concerns of interacting with telehealth devices in the future. The open-ended questions were coded for themes. Results also indicated that there was a high reliability between the MUTT and the PIADS, however the MUTT was slightly more reliable. Significant correlations were found between the overall MUTT and subscales of autonomy, competence, relatedness, and goals, as well as moderate correlations between the subscales of the PIADS (i.e., competence, adaptability, self-esteem) and the MUTT. The results of this research will be discussed further.
Show less - Date Issued
- 2015
- Identifier
- CFH0004794, ucf:45338
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFH0004794
- Title
- Effects of Electronic Media Messages on the Perceived Self-Efficacy of Pedestrian Commuters Living in the Unincorporated Central Florida Community of Conway.
- Creator
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Stephens, Daniel, Yu, Chia-Yuan, Martin, Lawrence, Hawkins, Christopher, Seigler, Daniel, University of Central Florida
- Abstract / Description
-
Urban pedestrianism is increasingly perceived as a dangerous form of travel. While roadway design has been historically scaled to cars instead of people, planning professionals are now re-thinking their approach to make roads more inclusive for all travelers. Scholars, however, have learned harbored fear can trump behavior even under ideal travel conditions. Such fear can adversely impact perceived pedestrian self-efficacy, which is the self-generated internal assessment or belief in a...
Show moreUrban pedestrianism is increasingly perceived as a dangerous form of travel. While roadway design has been historically scaled to cars instead of people, planning professionals are now re-thinking their approach to make roads more inclusive for all travelers. Scholars, however, have learned harbored fear can trump behavior even under ideal travel conditions. Such fear can adversely impact perceived pedestrian self-efficacy, which is the self-generated internal assessment or belief in a traveler's agentive abilities to navigate the travel environment. The challenge thus becomes twofold: improve the built environment while bolstering traveler confidence. The following study, therefore, employed a qualitative phenomenological research design to ascertain the concerns and perceptions of vulnerable travelers as it pertained to and was affected by travel-specific media. The study employed denizens selected from the Central Florida community of Conway, who were interviewed using a multi-method approach employing a semi-structured interview technique utilizing individual interviews and small focus group sessions. Using Social Cognitive Theory (SCT) as the theoretical framework, the researcher studied and documented the elements contributing to the perceptions of pedestrian travelers. The rationale for this approach is found in the dynamic relationships that exist between the objective travel environment, the perceived travel environment, and travel behavior (-) all representing the triad of cognition, the external environment, and social stimuli, which encompass Bandura's Triadic Reciprocal Determinism (TRD). The four themes that emerged from the data analysis (-) communication, safety, cost, and happiness (-) characterize the experiences of the participants as they watched positively-themed media images modeling civil travel behavior. This research adds to existing literature on the magnitude such themes have on perception, to include latent perceptions harbored by pedestrian commuters concerning dangers (-) real or imagined (-) of traveling on local roadways.
Show less - Date Issued
- 2018
- Identifier
- CFE0007376, ucf:52100
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0007376
- Title
- Adherence Practices of Caucasian Women With Hypertension Residing in Rural Florida: An Exploratory Study.
- Creator
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Hopple, Jeanne, Bushy, Angeline, Sole, Mary, Covelli, Maureen, Oetjen, Dawn, University of Central Florida
- Abstract / Description
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Hypertension, or high blood pressure, is a major risk factor for heart disease and stroke. Elevated blood pressure is often a silent process affecting multiple organ systems. Risk for heart disease is associated with poorly treated or unrecognized hypertension that is more common among women than men. Non-adherence to prescribed treatment regimens has been identified as a major reason for inadequate hypertension management. This exploratory descriptive qualitative study using narrative...
Show moreHypertension, or high blood pressure, is a major risk factor for heart disease and stroke. Elevated blood pressure is often a silent process affecting multiple organ systems. Risk for heart disease is associated with poorly treated or unrecognized hypertension that is more common among women than men. Non-adherence to prescribed treatment regimens has been identified as a major reason for inadequate hypertension management. This exploratory descriptive qualitative study using narrative inquiry investigated adherence practices among Caucasian women with diagnoses of hypertension from a rural area of Florida. The purpose of this study was to gain an understanding from women who had been diagnosed with hypertension about the challenges of living with and managing this chronic condition in their daily lives. Participants included Caucasian women (n = 11) recruited from a Federally Qualified Rural Health Center in Florida. Semi-structured interviews were used to collect data. Content analysis procedures were used to analyze the interviews. Emergent themes included: work stress affecting health and leading to high blood pressure; silent (")sneaky, gradual(") onset of mild to moderate symptoms leading to high blood pressure; and strong influence of family members with high blood pressure and related complications that instilled fear in participants to adhere to their prescribed treatment plan in some, or in others to non-adherence. Social support from friends and coworkers was a repeated theme supporting adherence. Minor themes associated with non-adherence included fear of potential side effects of medications, challenges of daily living caring for family, fatigue from high blood pressure and medications affecting daily work, poor food choices due to finances and availability of high sodium and fatty foods at work and home, stress and time demands affecting ability to exercise to control high blood pressure, and focus on family forgetting self-needs. Limitations of the study included a small convenience sample with findings that may not be applicable to a population of hypertensive women from different rural settings. Future nursing studies in similar populations may contribute to improved adherence practices, leading to reduced complications from poorly controlled hypertension.
Show less - Date Issued
- 2011
- Identifier
- CFE0004120, ucf:49100
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFE0004120
