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2006

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The Effects Of American Diabetes Association (Ada) Diabetes Self-Management Education And Continuous Glucose Monitoring On Diabetes Health Beliefs, Behaviors And Metabolic Control, Jodee Meisenhelder-Smith Jan 2006

The Effects Of American Diabetes Association (Ada) Diabetes Self-Management Education And Continuous Glucose Monitoring On Diabetes Health Beliefs, Behaviors And Metabolic Control, Jodee Meisenhelder-Smith

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to determine whether adults with type 2 diabetes participating in American Diabetes Association (ADA) diabetes self-management education (DSME) randomly assigned to an intensive follow-up group (IFG), utilizing continuous glucose monitoring system (CGMS), or a standard follow-up group (SFG) have any significant differences in mean HgbA1c values and health belief scores over time. Baseline HgbA1c values and health beliefs were measured using the revised Expanded Health Belief Model (HBM) questionnaire. The questionnaire measured the 8 HBM domains: perceived susceptibility; severity; treatment benefit; cues to action; motivation; barriers; self-efficacy and structural elements. Twelve weeks after DSME, …

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Molecular Simulations Of Pd Based Hydrogen Sensing Materials, Ling Miao Jan 2006

Molecular Simulations Of Pd Based Hydrogen Sensing Materials, Ling Miao

USF Tampa Graduate Theses and Dissertations

Hydrogen sensor technology is a crucial component for safety and many other practical concerns in the hydrogen economy. To achieve a desired sensor performance, proper choice of sensing material is critical, because it directly affects the main features of a sensor, such as response time, sensitivity, and selectivity. Palladium is well-known for its ability to sorb a large amount of hydrogen. Most hydrogen sensors use Pd-based sensing materials. Since hydrogen sensing is based on surface and interfacial interactions between the sensing material and hydrogen molecules, nanomaterials, a group of low dimensional systems with large surface to volume ratio, have become …

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Multicultural Education And Cultural Competence In The High Accountability Era: A Study Of Teacher Perception, Jennifer Morley Jan 2006

Multicultural Education And Cultural Competence In The High Accountability Era: A Study Of Teacher Perception, Jennifer Morley

USF Tampa Graduate Theses and Dissertations

As America's public schools become more diverse, the achievement gap between white students and students of color persists. These gaps are even more apparent in urban areas that serve large numbers of poor students of color. Because the population of aspiring teachers is increasingly white and middle class, theorists and teacher trainers often recommend multicultural education as a solution to working successfully in these schools. Multicultural education theorists claim that their suggestions for K-12 practitioners have not been infused into classrooms and schools, and so maintain that additional training opportunities should be provided for teachers. Although there is ample literature …

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Goal Conflicts, Self-Regulation, And Course Completion: A Comparison Of Web-Based Learners To Traditional Classroom Learners, Barbara Moore Jan 2006

Goal Conflicts, Self-Regulation, And Course Completion: A Comparison Of Web-Based Learners To Traditional Classroom Learners, Barbara Moore

USF Tampa Graduate Theses and Dissertations

The purpose of this study was to examine the goal conflicts, self-regulation, and course completion of post-secondary learners and to compare these factors in distance and traditional learners. Participants completed a self-report survey given on-line to those who had Internet access and administered in paper format to students in traditional classrooms. Procrastination, socializing, and employment were the most common goal conflicts reported by participants. Significantly more web-based students than traditional students were employed and were employed more average hours. Web-based students also had more children under the age of 12 than did traditional students. A significantly greater percentage of web-based …

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Regression Approach To Software Reliability Models, Abdelelah M. Mostafa Jan 2006

Regression Approach To Software Reliability Models, Abdelelah M. Mostafa

USF Tampa Graduate Theses and Dissertations

Many software reliability growth models have beenanalyzed for measuring the growth of software reliability. In this dissertation, regression methods are explored to study software reliability models. First, two parametric linear models are proposed and analyzed, the simple linear regression and transformed linearregression corresponding to a power law process. Some software failure data sets do not follow the linear pattern. Analysis of popular real life data showed that these contain outliers andleverage values. Linear regression methods based on least squares are sensitive to outliers and leverage values. Even though the parametric regression methods give good results in terms of error measurement …

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Generalized Non-Dimensional Depth-Discharge Rating Curves Tested On Florida Streamflow, Auristela Mueses-Pã©Rez Jan 2006

Generalized Non-Dimensional Depth-Discharge Rating Curves Tested On Florida Streamflow, Auristela Mueses-Pã©Rez

USF Tampa Graduate Theses and Dissertations

A generalized non-dimensional mathematical expression has been developed to describe the rating relation of depth and discharge for intermediate and high streamflow of natural and controlled streams. The expressions have been tested against observations from forty-three stations in West-Central Florida. The intermediate-flow region model has also been validated using data from thirty additional stations in the study area. The proposed model for the intermediate flow is a log-linear equation with zero intercept and the proposed model for the high-flow region is a log-linear equation with a variable intercept. The models are normalized by the depth and discharge values at 10 …

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Distribution And Habitat Characterization Of The Florida Burrowing Owl In Non-Urban Areas, Mark S. Mueller Jan 2006

Distribution And Habitat Characterization Of The Florida Burrowing Owl In Non-Urban Areas, Mark S. Mueller

USF Tampa Graduate Theses and Dissertations

The full geographic distribution and habitat use of the Florida Burrowing Owl, a state "Species of Special Concern," is not well-understood, particularly in remote, non-urban areas. This thesis aimed to expand and improve knowledge about non-urban burrowing owls. We first compiled databases of historic sighting observations. Fieldwork verified and updated existing breeding observation point records and also yielded new breeding locations. Using a GIS, we characterized observed land use, landcover, relevant soil attributes, projected future land use and managed area status for selected points. We quantified landcover within biologically-determined buffer distances around burrows from our own field-verified records. Using standard …

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The Contribution Of The Neighborhood Context To Social Disparities In Access To Health Care Among Sexually Experienced Adolescent Females, Jodi Nearns Jan 2006

The Contribution Of The Neighborhood Context To Social Disparities In Access To Health Care Among Sexually Experienced Adolescent Females, Jodi Nearns

USF Tampa Graduate Theses and Dissertations

Access to health care is an important resource for sexually experienced adolescent females in the prevention of unintended pregnancy and sexually transmitted infections, including HIV. However, a paucity of research exists regarding the extent to which social disparities in access to health care exist among this vulnerable population of adolescents, including the potential contribution of the neighborhood context. Therefore, the primary aims of this dissertation were to examine (1) the extent to which racial and socioeconomic disparities in access to health care exist among sexually experienced adolescent females, (2) the extent to which access to health care among sexually experienced …

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Coral Reef Habitat Change And Water Clarity Assessment (1984-2002) For The Florida Keys National Marine Sanctuary Using Landsat Satellite Data, David A. Palandro Jan 2006

Coral Reef Habitat Change And Water Clarity Assessment (1984-2002) For The Florida Keys National Marine Sanctuary Using Landsat Satellite Data, David A. Palandro

USF Tampa Graduate Theses and Dissertations

The decline of coral reef habitats has been witnessed on a global scale, with some of the most dramatic decline occurring in the florida keys. as remote sensing can provide a synoptic view of coral reef ecosystems, 28 landsat images (1984-2002) were utilized to study water clarity and habitat change. first, the data were used to derive the diffuse attenuation coefficient (kd, m-1), a measure of water clarity, for 29 sites throughout the florida keys national marine sanctuary (fknms). landsat-derived kd values from bands 1 (blue) and 2 (green) provided useful information for 26 of 29 sites, whereas band 3 …

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Maximizing The Educational Effects Of Collaborative Learning: The Role Of Vested Interest, Christina Partin Jan 2006

Maximizing The Educational Effects Of Collaborative Learning: The Role Of Vested Interest, Christina Partin

USF Tampa Graduate Theses and Dissertations

This study, using a quasi-experimental research design, investigates connections between pedagogy and social psychology by applying social psychological theories of group work and interaction to collaborative learning, a current trend in pedagogical techniques. It was hypothesized that by creating a setting in which students would be evaluated based in part on the performance of their peers would improve their individual performance. The incentive (a percentage of their grade) would hypothetically motivate students to teach their peers effectively; thus they would be taking a vested-interest role in becoming a co-teacher to their partner. This study was implemented by examining two sections …

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Late Holocene Planktic Foraminiferal Assemblages From Orca Basin; Effects Of Dissolution On Faunal Assemblages, Denise D. Palmer Jan 2006

Late Holocene Planktic Foraminiferal Assemblages From Orca Basin; Effects Of Dissolution On Faunal Assemblages, Denise D. Palmer

USF Tampa Graduate Theses and Dissertations

Studies of planktic foraminifers have been, and continue to be, very important to paleoceanographic reconstructions and are dependent on the integrity of the carbonate tests. This study investigates the methods and procedures that can be used to obtain an accurate planktic foraminifer assemblage. Samples from Orca Basin boxcore OB-BC4D were processed and examined to obtain census data on planktic foraminifers. Experimentation of the splitting technique demonstrates the method is acceptable for estimating a planktic foraminifer assemblage. The effects of a sonication step in the processing of the faunal assemblage were also examined and revealed that sonication is not recommended for …

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Breast Cancer: Relationship Between Acculturation And Barriers To Breast Cancer Screening In Southwest Florida Latinas, Patricia Patino Jan 2006

Breast Cancer: Relationship Between Acculturation And Barriers To Breast Cancer Screening In Southwest Florida Latinas, Patricia Patino

USF Tampa Graduate Theses and Dissertations

Despite multiple campaigns by the American Cancer Society, reports indicate that Latinas living in the United States who contract breast cancer are more likely than Anglos to die. These findings correlate with low participation in breast cancer screenings among Latinas. The objective of this study was to identify key obstacles that influence Latinas' low participation in breast cancer screenings, based on their health beliefs, knowledge of screenings, acculturation, and socio-economic factors.The study was a face-to-face informal interview, combined with a survey questionnaire conducted at churches, social clubs and/or at the participants' homes in a southwest Florida urban community. The sample …

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Recognizable Languages Defined By Two-Dimensional Shift Spaces, Joni Burnette Pirnot Jan 2006

Recognizable Languages Defined By Two-Dimensional Shift Spaces, Joni Burnette Pirnot

USF Tampa Graduate Theses and Dissertations

There are numerous connections between the theory of formal languages and that of symbolic dynamics. In each, the transition from one dimension to two dimensionsis accompanied by much difficulty due in large part to the emptiness problem, which is related to the presence (or lack thereof) of periodic points and is known to be undecidable. Here, we focus on two-dimensional languages that have the property that all blocks allowed by the language can be extended to a configuration of the plane satisfying the structure of the language; for such languages the emptiness problem is not an issue. We first show …

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Leadership Predictors Of Proactive Organizational Behavior: Facilitating Personal Initiative, Voice Behavior, And Exceptional Service Performance, Johannes Rank Jan 2006

Leadership Predictors Of Proactive Organizational Behavior: Facilitating Personal Initiative, Voice Behavior, And Exceptional Service Performance, Johannes Rank

USF Tampa Graduate Theses and Dissertations

Proactive organizational behavior is characterized by self-started and long-term oriented activities involving forward thinking and the intention to effect change in one's work environment. The primary objective of this research was to investigate relationships of supervisory behaviors with subordinates' personal initiative, voice behavior, and proactive service performance and to reveal moderators and mediators of these associations. Whereas personal initiative represents a wide range of proactive behaviors, voice behavior specifically reflects challenging and constructive forms of change-oriented communication. Drawing on the proactivity, service, and performance literatures, the proactive service performance construct was newly conceptualized as self-started and long-term oriented service behavior …

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Estimation Of Evapotranspiration Using Continuous Soil Moisture Measurement, Mandana Seyed Rahgozar Jan 2006

Estimation Of Evapotranspiration Using Continuous Soil Moisture Measurement, Mandana Seyed Rahgozar

USF Tampa Graduate Theses and Dissertations

A new methodology is proposed for estimation of evapotranspiration (ET) flux at small spatial and temporal scales. The method involves simultaneous measurement of soil moisture (SM) profiles and water table heads along transects flow paths. The method has been applied in a shallow water table field site in West-Central Florida for data collected from January 2002 through June 2004. Capacitance shift type moisture sensors were used for this research, placed at variable depth intervals starting at approximately 4 in. (10 cm) below land surface and extending well below the seasonal low water table depth of 59 in. (1.5 m). Vegetation …

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Structure And Dynamics Of Heterogeneous Molecular Systems, Alfred B. Roney Jan 2006

Structure And Dynamics Of Heterogeneous Molecular Systems, Alfred B. Roney

USF Tampa Graduate Theses and Dissertations

Although current classical force fields describe homogeneous single-componentsystems fairly well, they do not represent the response of an individual molecule's electronic structure to its local environment with enough detail to reliably predict atomic motions in interfacial regions such as a solvation structure or liquid surface.Since most chemical processes of non-trivial interest involve two or more dissimilar molecules interacting at a short distance, molecular models must accurately simulate the interactions between different molecular species as well as bulk behavior in order to provide useful information. Results from two simulation studies are presented to illustrate both the utility of current point-charge electrostatics …

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Archival Evaluation Of A Proactive School-Wide Discipline Plan, Beth Rutz-Beynart Jan 2006

Archival Evaluation Of A Proactive School-Wide Discipline Plan, Beth Rutz-Beynart

USF Tampa Graduate Theses and Dissertations

The study conducted was an archival review of school detailed incident discipline records and description of the school-wide proactive discipline plan developed at an elementary school. The study examined the effects of sequential changes in a proactive school-wide discipline plan. Initially, the baseline data consisted of a full year of school without a proactive school-wide discipline plan. This allowed an assessment of the variation in referrals that occurred across a school year. Subsequent years were assessed in relation to this baseline, and the effects from year to year compared to other years. After the baseline year, substantial changes were made …

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Using Fuzzy Logic To Enhance Control Performance Of Sliding Mode Control And Dynamic Matrix Control, Edinzo J. Iglesias Sanchez Jan 2006

Using Fuzzy Logic To Enhance Control Performance Of Sliding Mode Control And Dynamic Matrix Control, Edinzo J. Iglesias Sanchez

USF Tampa Graduate Theses and Dissertations

Two application applications of Fuzzy Logic to improve the performance of two controllers are presented. The first application takes a Sliding Mode Controller designed for chemical process to reject disturbances. A fuzzy element is added to the sliding surface to improve the controller performance when set point change affects the control loop; especially for process showing highly nonlinear behavior. This fuzzy element, , is calculated by means of a set of fuzzy rules designed based on expert knowledge and experience. The addition of improved the controller response because accelerate or smooth the controller as the control loop requires. The Fuzzy …

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Intelligibility Of Clear Speech At Normal Rates For Older Adults With Hearing Loss, Billie Jo Shaw Jan 2006

Intelligibility Of Clear Speech At Normal Rates For Older Adults With Hearing Loss, Billie Jo Shaw

USF Tampa Graduate Theses and Dissertations

Clear speech refers to a speaking style that is more intelligible than typical, conversational speaking styles. It is usually produced at a slower rate compared to conversational speech. Clear speech has been shown to be more intelligible than conversational speech for a large variety of populations, including both hearing impaired (Schum, 1996; Picheny, Durlach, & Braida, 1985; and Payton, Uchanski, & Braida, 1994) and normal hearing individuals (e.g. Uchanski, Choi, Braida, Reed, & Durlach, 1996) under a variety of conditions, including those in which presentation level, speaker, and environment are varied. Although clear speech is typically slower than normally produced …

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Heme Biosynthesis: Structure–Activity Studies Of Murine Ferrochelatase, Zhen Shi Jan 2006

Heme Biosynthesis: Structure–Activity Studies Of Murine Ferrochelatase, Zhen Shi

USF Tampa Graduate Theses and Dissertations

Ferrochelatase catalyzes the terminal step of heme biosynthesis by inserting ferrous iron into protoporphyrin IX. The current study is aimed at understanding the structural basis of porphyrin binding and distortion in ferrochelatase-catalyzed reaction by functional analysis of a highly conserved active site loop motif. The loop was shown to contact bound porphyrin based on crystallographic and molecular modelling observations, and its role in murine ferrochelatase was assessed by random mutagenesis and steady-state kinetic analysis. To overcome the limitations of conventional kinetic assay methods for ferrochelatase, a continuous assay was developed by monitoring porphyrin fluorescence decrease using natural substrates ferrous iron …

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Effects Of A Multi-Component Interdependent Group Contingency Game On The Classroom Behaviors Of Typically Developing Elementary School Children, Stacey D. Simonds Jan 2006

Effects Of A Multi-Component Interdependent Group Contingency Game On The Classroom Behaviors Of Typically Developing Elementary School Children, Stacey D. Simonds

USF Tampa Graduate Theses and Dissertations

Research in the field of applied behavior analysis indicates that all group-contingency programs have been effective in both increasing academic and behavior success in the classroom environment. Among the three types of group-contingency programs, this study investigated the effects of a multiple component interdependent group-oriented contingency program on the behavior of typically developing elementary students. The purpose of this study was to develop and analyze the effects of a classroom management system that teachers or educators could utilize to minimize problematic classroom behaviors while increasing adaptive classroom behaviors. The study was conducted within two third-grade classrooms from a local school …

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Geochemical Signatures In The Coral Montastraea: Modern And Mid-Holocene Perspectives, Jennifer Mae Smith Jan 2006

Geochemical Signatures In The Coral Montastraea: Modern And Mid-Holocene Perspectives, Jennifer Mae Smith

USF Tampa Graduate Theses and Dissertations

In the first phase of this project, four decades of monthly resolved geochemical variations from two massive heads of Montastraea were used to explore the reproducibility of the geochemical signal in these two corals from Looe Key, Florida. The coral d18O and d13C records of the two corals have statistically indistinguishable mean values, which is not the case for the coral Sr/Ca records implying that nonenvironmental factors are influencing coral Sr/Ca. Calibration equations relating coral geochemistry variations to environmental variations at Looe Key are different from previously published equations for Montastraea. These calibration differences are not related to growth-related kinetic …

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Multiple Voices And The Single Individual: Kierkegaard’S Concept Of Irony As A Tool For Reading The Great Gatsby, The Sun Also Rises, Mrs. Dalloway, And Ulysses, Thomas P. Smith Jan 2006

Multiple Voices And The Single Individual: Kierkegaard’S Concept Of Irony As A Tool For Reading The Great Gatsby, The Sun Also Rises, Mrs. Dalloway, And Ulysses, Thomas P. Smith

USF Tampa Graduate Theses and Dissertations

The central issue in the works of Danish philosopher and religious thinker Soren Kierkegaard (1813-1855) takes the form of a question: "What does it mean to become a Christian?" However, Kierkegaard's ideas exerted influence well beyond Christian circles and have been important to many notable philosophical and literary figures, some of whom chose not to concern themselves primarily with this question (Sartre, Camus, Heidegger, Buber), and some of whom did choose to concern themselves primarily with this question (Tillich, Bonhoeffer, Berdyaev, Marcel). Even though Kierkegaard died in relative obscurity, thanks to posthumous translation of his works into German and to …

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Environmental Variability In The Florida Keys: Impacts On Coral Reef Health, Inia M. Soto Jan 2006

Environmental Variability In The Florida Keys: Impacts On Coral Reef Health, Inia M. Soto

USF Tampa Graduate Theses and Dissertations

I examined the hypothesis that high variability in Sea Surface Temperature (SST) and ocean color are associated with higher coral cover and slower rates of decline of coral cover within the Florida Keys National Marine Sanctuary (FKNMS). Synoptic SST time series maps, covering the period 1994-2005, were constructed for the FKNMS with data collected using the National Oceanic and Atmospheric Administration (NOAA) Advanced Very High Resolution Radiometer (AVHRR) satellite sensors. The SST data were compared with coral cover time series assessments at 36 sites conducted by the Coral Reef and Evaluation Monitoring Program (CREMP; 1996-2005), sponsored by the Environmental Protection …

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Advanced Registered Nurse Practitioners’ Judgments Of Coronary Heart Disease Risk, Kelly D. Stamp Jan 2006

Advanced Registered Nurse Practitioners’ Judgments Of Coronary Heart Disease Risk, Kelly D. Stamp

USF Tampa Graduate Theses and Dissertations

Coronary heart disease (CHD) is the single largest killer of American males and females in the United States. According to the American Heart Association, (2005) approximately 41% of Americans that experience a coronary attack in a given year will die from it (AHA, 2005). To combat this growing problem, strategies need to be evaluated to assess how the identification of actual and potential CHD risks are made. This study utilized the Social Judgment Theory to gain insight into nurse practitioner's decision-making strategies. Sixty family or adult specialty nurse practitioners affiliated with the University of South Florida (USF) College of Nursing …

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Preservice Teachers’ Responses To An Interactive Constructivist Model For Web-Based Learning, Cherry O. Steffen Jan 2006

Preservice Teachers’ Responses To An Interactive Constructivist Model For Web-Based Learning, Cherry O. Steffen

USF Tampa Graduate Theses and Dissertations

College and university teacher education programs are not, and should not be, exempt from the growing demand for distance education opportunities. Science teacher education is no exception to this growing demand. While there are some distance-learning courses and even complete programs for teacher education, the majority of these are offered as continuing education or post-graduate education opportunities. The number of programs offered specifically in science teacher education (either undergraduate or post-graduate) is extremely limited. Those distance-learning classes that are available for teacher education rarely reflect the instruction expected from teachers by the National Science Education Standards when they enter the …

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The Effects Of In-Group Bias And Decision Aids On Auditors’ Evidence Evaluation, Eileen Zalkin Taylor Jan 2006

The Effects Of In-Group Bias And Decision Aids On Auditors’ Evidence Evaluation, Eileen Zalkin Taylor

USF Tampa Graduate Theses and Dissertations

This study examines the effect of in-group bias and decision aid use on auditor judgments, confidence, and decisions in an analytical procedures task. In-group bias, a product of Social Identity Theory, may impair auditor independence by influencing auditor judgments. Auditors rely on client representations to support their opinion of the financial statements; however, clients are sometimes former auditors of the external audit firm. This prior relationship could lead the auditor to exhibit unwarranted trust of client representations. In an online mixed design experiment using staff and senior auditors, I test whether auditor judgments, confidence in those judgments, and decisions to …

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A Case Study Of The Perceived Decision-Making Practices And Patterns Of Secondary Administrators Using Four Scenarios, Elizabeth M. Tuten Jan 2006

A Case Study Of The Perceived Decision-Making Practices And Patterns Of Secondary Administrators Using Four Scenarios, Elizabeth M. Tuten

USF Tampa Graduate Theses and Dissertations

This research study explored practitioners' perceived understanding and situational use of seven decision-making models of educational administration. In examining the extant literature of the field, the following research problem emerged to guide this study: scholars and practitioners struggle to understand how school administrators make workplace decisions, and how school leaders perceive their decision-making strategies and actions. Based upon Pettigrew's (1985) Conceptual Framework of Organizational Change and relevant literature (see chapter 2), the researcher developed a series of questions in order to explore the aforementioned purpose and problem. Specifically, three principals, three assistant principals of curriculum, and three assistant principals for …

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Communicating Change: An Ethnography Of Women’S Sensemaking On Menopause, Hormone Replacement Therapies, And The Women’S Health Initiative, Linda Vangelis Jan 2006

Communicating Change: An Ethnography Of Women’S Sensemaking On Menopause, Hormone Replacement Therapies, And The Women’S Health Initiative, Linda Vangelis

USF Tampa Graduate Theses and Dissertations

As a result of the recent findings of the Women's Health Initiative (WHI), many women who have been on hormone replacement therapies (HRT) have begun to renegotiate their understandings and strategies of this stage of their lives. The WHI findings suggested that the risks of HRT outweighed the benefits for healthy menopausal women. This study examined women's emerging sensemaking regarding HRT and menopause in light of the WHI findings. Seven women in the Tampa Bay area, who were in various stages of menopause, participated in three focus group sessions and two one-on-one interviews to discuss their lives in menopause. Based …

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Satellite Analysis Of Temporal And Spatial Chlorophyll Patterns On The West Florida Shelf (1997-2003), Lisa Anne Vanderbloemen Jan 2006

Satellite Analysis Of Temporal And Spatial Chlorophyll Patterns On The West Florida Shelf (1997-2003), Lisa Anne Vanderbloemen

USF Tampa Graduate Theses and Dissertations

The objective of this dissertation is to gain a better understanding of the environmental and climatic effects on the temporal and spatial variability of phytoplankton biomass along the West Florida Shelf. Chapter 1 examines temporal and spatial patterns in chlorophyll concentrations using satellite data collected between 1997 and 2003. Chlorophyll data derived from the SeaWiFS sensor are validated with in-situ data and analyzed. Wind, current, sea surface temperature, river, and rain data are used to better understand the factors responsible for the patterns observed in the satellite data. My question is whether the standard OC4 algorithm is adequate for studying …

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