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Cement stabilization of organic soils for controlling secondary compression behavior
Title
Cement stabilization of organic soils for controlling secondary compression behavior.
Creator
Ramirez, Juan., College of Engineering and Computer Science, Department of Civil, Environmental and Geomatics Engineering
Abstract/Description
Western Palm Beach County, FL is characterized by thick deposits organic soils at shallow depths. Because of their high void ratio and compressibility, these soils undergo large primary consolidation followed by extended periods of secondary compression causing excessive premature structural distress. Although soil stabilization has been largely used with remarkable results in soft, expansive and non-organic soils, limited research and practice exist in the implementation with highly organic...
Show moreWestern Palm Beach County, FL is characterized by thick deposits organic soils at shallow depths. Because of their high void ratio and compressibility, these soils undergo large primary consolidation followed by extended periods of secondary compression causing excessive premature structural distress. Although soil stabilization has been largely used with remarkable results in soft, expansive and non-organic soils, limited research and practice exist in the implementation with highly organic soils. The main motivation of this research was to investigate the effects of cement stabilization on the compressibility behavior of organic rich soils, and develop mix design criteria for optimum cement contents necessary to induce the desired engineering behavior. This optimized mix design may provide guidelines for Deep Mixing Methods in organic soils.
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Date Issued
2009
PURL
http://purl.flvc.org/FAU/367760
Subject Headings
Soil consolidation, Measurement, Soils, Organic compound content, Soil remediation, Technological innovations, Concrete construction, Structural stability, Design
Format
Document (PDF)
Florida's definition and subsequent calculatons of a public high school graduate
Title
Florida's definition and subsequent calculatons of a public high school graduate: a critical race theory analysis.
Creator
Watson, Terri N., College of Education, Department of Educational Leadership and Research Methodology
Abstract/Description
On March 18, 2008, the American Civil Liberties Union (ACLU) of Florida filed a class action lawsuit against The Palm Beach County School Board and its district superintendent on behalf of approximately 176,000 students under their jurisdiction (Schroeder v. The Palm Beach County School Board, 2008). The plaintiffs cited the defendants for their failure "to provide a uniform, efficient, safe, secure, and high quality education" (p. 7) as required by the Florida Constitution, Article IX, ß 1....
Show moreOn March 18, 2008, the American Civil Liberties Union (ACLU) of Florida filed a class action lawsuit against The Palm Beach County School Board and its district superintendent on behalf of approximately 176,000 students under their jurisdiction (Schroeder v. The Palm Beach County School Board, 2008). The plaintiffs cited the defendants for their failure "to provide a uniform, efficient, safe, secure, and high quality education" (p. 7) as required by the Florida Constitution, Article IX, ß 1. They contended that their claim was substantiated by The School District of Palm Beach County's (SDPBC) dismal high school graduation rates. Spurred by the lawsuit, I wanted to understand the controversy surrounding high school graduation rates, in spite of decades of school reform measures, and why different calculation methods are utilized in the state of Florida. In respect to the latter point, I was curious to learn about the differences among graduation rate calculation methods and what impact, if any, these differences had on the reporting of high school graduation rates, particularly those for students of color. Black America's past and present reality in public education has illustrated the need for new paradigms to address the achievement gap promulgated by contextual factors that serve to impede the academic achievement of all students. The statistical analyses and Critical Race Realist perspective, which has evolved from Critical Race Theory when applied to policy research, offered in this study found Florida's definition and subsequent calculations of a public high school graduate to result in significant and consistent differences among graduation rates relative to student race and graduation rate calculation method.
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Date Issued
2010
PURL
http://purl.flvc.org/FAU/1930490
Subject Headings
Discrimination in education, Educational equalization, School improvement programs, High school graduates
Format
Document (PDF)
Integration of geospatial technologies into K-12 curriculum
Title
Integration of geospatial technologies into K-12 curriculum: an investigation of teacher and student perceptions and student academic achievement.
Creator
Goldstein, Donna L., College of Education, Department of Educational Leadership and Research Methodology
Abstract/Description
The purpose of this study was to explore outcomes of a GIS/GPS integration process: to (a) examine student responses to GIS and GPS inclusion in their curriculum, (b) determine whether a relationship exists between inclusion of GIS into existing K-12 curriculum and student achievement, (c) examine the effectiveness of GIS professional development for teachers, and (d) evaluate teacher perceptions of the value of integrating GIS into their existing curricula. This study was quantitative and...
Show moreThe purpose of this study was to explore outcomes of a GIS/GPS integration process: to (a) examine student responses to GIS and GPS inclusion in their curriculum, (b) determine whether a relationship exists between inclusion of GIS into existing K-12 curriculum and student achievement, (c) examine the effectiveness of GIS professional development for teachers, and (d) evaluate teacher perceptions of the value of integrating GIS into their existing curricula. This study was quantitative and quasi-experimental in design. The samples consisted of 1,425 students from one middle school and 62 teachers from Palm Beach County School District. Two instruments were used in this study: student surveys and teacher feedback forms. Data from the student surveys indicated that students perceive their learning is enhanced by inclusion of GIS and GPS. Data from the teacher feedback forms revealed positive perceptions of the GIS/GPS program as an integrative tool for their existing curricula and a positive assessment of the GIS professional development training. The relationship between GIS instruction and student academic achievement was evaluated, measured by FCAT reading scores and final grades in science and social studies. The findings support the constructivist theory that students learn best when actively engaged in the process. In this study standardized FCAT reading test results and science and social studies grades corroborate the students' perceptions that GIS and GPS integration enhances their learning. Study results show FCAT reading scores were higher for GIS students than for non-GIS students. The research further indicated a significant increase in FCAT reading scores for non-native English speaking GIS students and a significantly higher average science grade for non-White GIS students., The findings also show that students who had a greater frequency of GIS instruction had higher averages in science and social studies grades. Education reform requires bold initiatives and an organizational culture supportive of innovative ideas. The structured model for development and implementation of GIS in the K-12 public school system presented at the end of this study includes collaboration between district leadership, administrators and teachers, and a comprehensive approach to professional development.
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Date Issued
2010
PURL
http://purl.flvc.org/FAU/1927302
Subject Headings
Geographic information systems, Global Positioning System, Florida Comprehensive Assessment Test, Curriculum planning, Achievement in education
Format
Document (PDF)
Mapping and analyzing the Florida Reef Tract in Palm Beach County in relation to major storm events in a GIS database
Title
Mapping and analyzing the Florida Reef Tract in Palm Beach County in relation to major storm events in a GIS database.
Creator
Pitti, Joseph G., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description
The Florida Reef Tract in Southeast Florida is made up of hard-bottom formations. The shape and size of the tract is constantly changing. One major factor contributing to these changes is the movement of sand. This is influenced by location-based, human-induced, and natural factors. These shifting sands cover or uncover reef structure. Images of the Florida Reef Tract in Palm Beach County were analyzed by the Department of Geosciences at Florida Atlantic University, using a partially...
Show moreThe Florida Reef Tract in Southeast Florida is made up of hard-bottom formations. The shape and size of the tract is constantly changing. One major factor contributing to these changes is the movement of sand. This is influenced by location-based, human-induced, and natural factors. These shifting sands cover or uncover reef structure. Images of the Florida Reef Tract in Palm Beach County were analyzed by the Department of Geosciences at Florida Atlantic University, using a partially automated method of mapping. There are notable changes in reef structure throughout the years 2004-2006, in which many major storm events occurred in the region. A time series analysis was conducted throughout these years. Losses and gains of reef structure were quantified and compared throughout the county as a whole, in beach renourishment project areas, and inlet intervals. Trends suggest that the major storms of 2004-2006 may have had effects on the reef tract.
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Date Issued
2011
PURL
http://purl.flvc.org/FAU/3172425
Subject Headings
Continental shelf, Mapping, Geographic information systems, Coral reef ecology, Environmental geology, Coral reefs and islands
Format
Document (PDF)
proposed expanded green space plan using GIS for natural areas in Palm Beach County
Title
A proposed expanded green space plan using GIS for natural areas in Palm Beach County.
Creator
Rainyn, Corrie., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description
In the past 25 years, Palm Beach County has acquired more than 31 million acres of public preserves consisting of numerous native habitats that are home to threatened and endangered flora and fauna. Both endemic habitats and plant species benefit from expansion and connectivity through the adoption of native plants in surrounding areas. The next step in conserving these protected, larger areas is to identify ways to connect them in order to reduce their isolation and improve their likelihood...
Show moreIn the past 25 years, Palm Beach County has acquired more than 31 million acres of public preserves consisting of numerous native habitats that are home to threatened and endangered flora and fauna. Both endemic habitats and plant species benefit from expansion and connectivity through the adoption of native plants in surrounding areas. The next step in conserving these protected, larger areas is to identify ways to connect them in order to reduce their isolation and improve their likelihood of continued ecosystem health. This study aims to perform an analysis using a GIS database of Palm Beach County's Eastern urban areas to determine additional vegetation that currently exists on public lands and private preserves and to analyze and classify the vegetation for its potential conservation role, either as ; preserves, buffers, corridors or clusters connecting and enhancing existing natural areas.
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Date Issued
2012
PURL
http://purl.flvc.org/FAU/3355879
Subject Headings
Urban ecology (Biology), Geographic information systems, Conservation of natural resources, Natural areas, Management, Geographic information systems
Format
Document (PDF)
Residential lawn water use and lawn irrigation practices
Title
Residential lawn water use and lawn irrigation practices: Wellington, Florida.
Creator
Survis, Felicia D., Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description
Water conservation initiatives seldom quantify the volume of water that is at stake in lawn watering. In many communities, including those in South Florida, outdoor water use, which includes lawn irrigation, is not metered separately from indoor water use and is indistinguishable from indoor water usage. A large number of residents use self supply non-potable wells for lawn irrigation that are not regulated by the South Florida Water Management District. The result is that residential lawn...
Show moreWater conservation initiatives seldom quantify the volume of water that is at stake in lawn watering. In many communities, including those in South Florida, outdoor water use, which includes lawn irrigation, is not metered separately from indoor water use and is indistinguishable from indoor water usage. A large number of residents use self supply non-potable wells for lawn irrigation that are not regulated by the South Florida Water Management District. The result is that residential lawn water use is difficult to account for and quantify. This thesis project addressed these difficulties by combining semistructured interviews, daily watering observations and irrigation system audits to ascertain how much public supply water and self supply (well) water was being used for residential lawn irrigation. The study also examined lawn watering practices and how factors such as: precipitation, the minimum plant needs of St. Augstinegrass, and how local watering restrictions influenced watering behavior.
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Date Issued
2010
PURL
http://purl.flvc.org/FAU/2705082
Subject Headings
Lawns, Water resources development, Landscape irrigation, Water consumption, Municipal water supply
Format
Document (PDF)
You're too late!"
Title
" You're too late!": prenatal health seeking behaviors of Guatemalan Mayan women in Palm Beach County.
Creator
Supanich, Colleen., Dorothy F. Schmidt College of Arts and Letters, Department of Anthropology
Abstract/Description
In this thesis I explore the circumstances in which pregnant Guatemalan Mayan women in South Florida communities found themselves. A local non-profit organization, the Guatemalan Maya Center (GMC), offered assistance to pregnant Mayan women to secure biomedical prenatal care, yet many continued to underutilize these services. The decision to utilize this form of care largely depended on whether a woman received care from a traditional midwife in the community. Women receiving care from a...
Show moreIn this thesis I explore the circumstances in which pregnant Guatemalan Mayan women in South Florida communities found themselves. A local non-profit organization, the Guatemalan Maya Center (GMC), offered assistance to pregnant Mayan women to secure biomedical prenatal care, yet many continued to underutilize these services. The decision to utilize this form of care largely depended on whether a woman received care from a traditional midwife in the community. Women receiving care from a midwife generally did not seek biomedical care until late in their pregnancies. Women unable to locate a midwife often incorporated biomedical care once they suspected pregnancy. Due to the difficulties accessing the GMC's services prior to enrollment many of these women did not obtain "timely" care. A better understanding of the ways in which Guatemalan Mayan women incorporated biomedical prenatal care into their lives is the first step towards increasing their participation in these services.
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Date Issued
2009
PURL
http://purl.flvc.org/FAU/192990
Subject Headings
Maya women, Medical care, Prenatal care, Maternal health services, Midwifery, Social aspects, Migrant agricultural laborers, Medical care
Format
Document (PDF)