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Articles 27631 - 27660 of 27721
Full-Text Articles in Entire DC Network
Developing A Relationship Between Nexrad Generated Rainfall Values And Rain Gauge Measurements In South Florida, Courtney L. Skinner
Developing A Relationship Between Nexrad Generated Rainfall Values And Rain Gauge Measurements In South Florida, Courtney L. Skinner
Electronic Theses and Dissertations 2000 - 2009
The South Florida Water Management District (SFWMD) is an agency which relies on a network of nearly 300 rain gauges in order to provide rainfall data for use in operations, modeling, water supply planning, and environmental projects. However, the prevalence of convective and tropical rain events in South Florida during the wet season presents a challenge in that the current rain gauge network may not fully capture rainfall demonstrating high spatial variability. NEXRAD (Next Generation Radar) technology offers water management officials the advantage of providing a spatial account of rainfall, although the relative quality of radar rainfall measurements remains largely …
Dynamic Analysis Of Single- And Multi-Module Platforms In Waves, Kaylie Ann Kling
Dynamic Analysis Of Single- And Multi-Module Platforms In Waves, Kaylie Ann Kling
Electronic Theses and Dissertations 2000 - 2009
The response of single- and multi-module floating platforms to surface waves is investigated theoretically. Wave exciting forces are computed using methods based on the Morrison equation and Froude-Krylov hypothesis. The radiation forces are obtained from experimental results of Vugt and where possible diffraction forces using the Haskind reciprocity relation. Heave and pitch response of a one-module platform and hinge-connected two-module platform are determined by integrating the corresponding equations of rigid-body motion. A structural dynamic analysis is also carried out using the Green's function method to determine the elastic flexural response of the platform to waves. The results are compared with …
Dynamical Perception: Modeling Framework, Model And Experiment, Felix Almonte
Dynamical Perception: Modeling Framework, Model And Experiment, Felix Almonte
Electronic Theses and Dissertations 2000 - 2009
Can a distributed anatomical and functional architecture serve as the basis for sufficiently complex perceptual phenomena? In addressing this question, the conceptual notion of dynamical system and its relation to other paradigms is considered including its definition. The principal goal is to develop a dynamical framework on which to ground the theoretical study of perception and other physical phenomena. As an entry point, the perceptual dynamics of auditory streaming are modeled using a neurally inspired dynamical model of auditory processing. Traditional approaches view streaming as a competition of streams, realized within a tonotopically organized neural network. In contrast, streaming can …
Enduring Relationship With The Dead: The Corpse, The Feminine And Popular Culture, Suzanne M. Kelly
Enduring Relationship With The Dead: The Corpse, The Feminine And Popular Culture, Suzanne M. Kelly
Electronic Theses and Dissertations 2000 - 2009
Feminist theory has long criticized the hierarchical and oppositional thinking responsible for creating the basis of what counts as real knowledge. In questioning how and why the experience of enduring relationship with the dead is not imagined as real, this dissertation will draw from this theoretical tradition. This analysis involves a paradigm shift in thinking about the nature of relationship---one that posits these kinds of experiences as something other than either a psychological remedy to our grief or the requisite belief in the survival of the self. Feminist critiques of dualistic thinking become the cornerstone of Chapter One in order …
Effect Of Hydroperiod On The Growth Of The Crayfish Species Procambarus Alleni And Procambarus Fallax: Two Keystone Species In The Florida Everglades, Matthew D. Gardner
Effect Of Hydroperiod On The Growth Of The Crayfish Species Procambarus Alleni And Procambarus Fallax: Two Keystone Species In The Florida Everglades, Matthew D. Gardner
Electronic Theses and Dissertations 2000 - 2009
The Everglades ecosystem is home to two species of freshwater crayfish: the Everglades crayfish Procambarus alleni and the slough crayfish Procambarus fallax. These species play a key ecological role by transporting energy from primary producers to higher trophic levels. Understanding the factors that regulate crayfish growth is an essential step in restoring their productivity in the Everglades ecosystem. In order to determine the effect of hydroperiod on crayfish growth, I collected crayfish from the Florida Everglades and subjected them to one of three hydroperiod treatments. The growth of both crayfish species in reduced hydroperiod treatments was significantly less than those …
Effect Of Self-Efficacy On The Decisions To Enroll And Succeed In Internet Accounting Courses, Abdullah I. Al-Moshaigeh
Effect Of Self-Efficacy On The Decisions To Enroll And Succeed In Internet Accounting Courses, Abdullah I. Al-Moshaigeh
Electronic Theses and Dissertations 2000 - 2009
This study examines whether there are any significant differences between accounting students enrolled in Internet-based courses and accounting students attending campus-based courses in terms of self-efficacy, academic goal, anxiety, gender, and self-assessment of performance. The study is motivated by the many calls for research to apply social cognitive theory to determine factors of motivation and consequently success of accounting students in an online education environment. Social cognitive theory (Bandura, 1986) is used to develop the hypotheses tested in the current study. Three groups of hypotheses were developed. The first group of hypotheses tests the relationships among academic self-efficacy, computer self-efficacy, …
Efficient And Effective Searching M Unstructured Filesharing Peer-To-Peer Networks, Xiuqi Li
Efficient And Effective Searching M Unstructured Filesharing Peer-To-Peer Networks, Xiuqi Li
Electronic Theses and Dissertations 2000 - 2009
Peer-to-peer (P2P) networking has been receiving increasing attention from the research community recently. How to conduct efficient and effective searching in such networks has been a challenging research topic. This dissertation focuses on unstructured file-sharing peer-to-peer networks. Three novel searching schemes are proposed, implemented, and evaluated. In the first scheme named ISRL (Intelligent Search by Reinforcement Learning), we propose to systematically learn the best route to desired files through reinforcement learning when topology adaptation is impossible or infeasible. To discover the best path to desired files, ISRL not only explores new paths by forwarding queries to randomly chosen neighbors, but …
Effects Of High Alkalinity Cements On The Control Of Alkali-Silica Reaction For Reinforced Concrete, Jorge Alejandro Suarez
Effects Of High Alkalinity Cements On The Control Of Alkali-Silica Reaction For Reinforced Concrete, Jorge Alejandro Suarez
Electronic Theses and Dissertations 2000 - 2009
In previous research, cements with high alkali content (EqA 1.0-1.2 percent) extended the corrosion initiation time of reinforcing steel in concrete. During this study, laboratory tests were performed to determine the suitability of high alkalinity cements to improve concrete durability without modifying physical properties and to control the risk of alkali-aggregate reaction (AAR). A mix design for the FOOT-Class V concrete served as base material for this study. On a cubic meter basis the cementitious material in this concrete included 363 kg of Type l/ll Portland cement and 83 kg of Class F fly ash. The water-to-cementitious material ratio of …
Energy-Efficient Target Coverage In Heterogeneous Wireless Sensor Networks, Wael Awada
Energy-Efficient Target Coverage In Heterogeneous Wireless Sensor Networks, Wael Awada
Electronic Theses and Dissertations 2000 - 2009
We consider a heterogeneous wireless sensor network, which has several supernodes for data relay and a large number of energy-constrained sensor nodes that are deployed randomly to cover certain targets. Since targets are covered by many sensors, we create several cover sets that are active successively to save power. We introduce the Heterogeneous Connected Set Covers (HCSC) which aims to find at least one cover set that covers all the targets and is connected to a data-relaying supernode. A sensor node can participate in different set covers but the sum of energy spent in all sets is constrained by the …
Exploratory Investigation Of Sources Of Individual Differences In Chemistry Performance: The Potential Role Of Visual And Verbal Working Memory And Student Affect In Chemistry Problem Solving, Jason Klein
Electronic Theses and Dissertations 2000 - 2009
This was an exploratory study of factors that predict individual differences in chemistry learning. Consistent with cognitive learning theory, working memory was assumed to be an important predictor of chemistry knowledge. Measures of chemistry affect, cognitive ability, demographics and mathematical ability were examined in relation to visual/schematic and algebra-like stoichiometry chemistry word problem solving ability and strategy use. 139 undergraduate students (91 females, 48 males) at a major Southeastern university participated in this study (Age ranged from 18 to 39 years (M = 20.70 years of age)). Perceived usefulness of the chemistry material, mathematical ability, GPA, and SGPA uniquely predicted …
Factors Affecting Success In Organic Chemistry, Andrea Maria Zaplatynski
Factors Affecting Success In Organic Chemistry, Andrea Maria Zaplatynski
Electronic Theses and Dissertations 2000 - 2009
In this study we correlate academic and non-academic descriptors with Organic Chemistry final grades for students enrolled at a Florida public university. Using multiple regression analysis, the following predictors are analyzed for a sample population of 904 students: age, gender, ethnicity, academic classification, SAT scores, major, overall grade point average (GPA), semesters lapsed between courses, institution where General Chemistry was taken, prerequisite grades, and number of math and science courses taken with their respective grades. Results indicate strong correlations exist between final grade in Organic Chemistry, GPA and General Chemistry final grade. Additionally, Organic Chemistry final grades correlate with academic …
Exploratory Study Of The Multicultural Responsiveness Of Higher Education Faculty At Two South Florida Universities, Juste Edvard St.
Exploratory Study Of The Multicultural Responsiveness Of Higher Education Faculty At Two South Florida Universities, Juste Edvard St.
Electronic Theses and Dissertations 2000 - 2009
The study started with a presumed conviction that there was ample evidence in Florida universities and in the community at large that students of color made up a large proportion of the student population. Meanwhile, I observed in classrooms, and realized that the diverse student population offers an opportunity to explore and understand issues of interest about diversity. With the changing demographics in the United States and a more inclusive university system, students of diverse cultures, racial, and ethnic backgrounds are making American education both more exciting and more complex. This qualitative study seeks to uncover the cultural and philosophical …
Genetic Variation Amongst Different Populations Of Typha Domingensis And Typha Latifolia (Cattails) In The Florida Everglades, Manuel N. Tapia
Genetic Variation Amongst Different Populations Of Typha Domingensis And Typha Latifolia (Cattails) In The Florida Everglades, Manuel N. Tapia
Electronic Theses and Dissertations 2000 - 2009
This thesis is intended to explore the genetic variation between cattail species (Typha spp.), within T. domingensis in different locations, anthropoegenic conditions, and possibly discover a hybrid in the Florida Everglades. Typha domingensis is the dominant cattail species in the Everglades, while Typha latifolia a less common species is also present. Five nuclear and chloroplast protein encoding genes from around 20 samples of cattail plants were collected randomly in the Water Conservation Areas of the Everglades Protection Act, cloned and sequenced. The results of sequencing showed differences between the two species studied, using an insertion within an intron of the …
Figurations Of The Literary Hero, Teresa M. Maybee
Figurations Of The Literary Hero, Teresa M. Maybee
Electronic Theses and Dissertations 2000 - 2009
Going back to Gilgamesh and Achilles as foundations for surveying centuries of protagonists we now call heroic, while synthesizing and modifying critical forerunners, this study reviews the patterns and the constituent elements of the literary hero both synchronically and diachronically, in order to trace changing figurations of the heroic ideal in Western literature, from texts of antiquity to modernism, and with particular emphasis on Anglo-American and French traditions.
Feasibility Of Target Tracking For High Speed High Seas Cargo Transfer, Glenn C. Tucker
Feasibility Of Target Tracking For High Speed High Seas Cargo Transfer, Glenn C. Tucker
Electronic Theses and Dissertations 2000 - 2009
At sea cargo transfer has historically been a logistical challenge for both the military and the offshore industry. Even in moderate seas, three to five foot wave heights, extreme pendulations of cargo and large relative motions between vessels can occur that halts cargo transfer activities. This work develops a six-degree-of-freedom rigid crane dynamics model that is used to investigate the feasibility of crane target tracking which could extend and enhance offshore crane operations. A double girder crane system is developed that easily adapts to different configurations and efficiently supports long reach heavy lift applications. Target tracking is feasible in sea …
Four Sparks Fall: A Novella, Tiffany. Noonan
Four Sparks Fall: A Novella, Tiffany. Noonan
Electronic Theses and Dissertations 2000 - 2009
four sparks fall is a complex narrative, darting among symbols, languages, puzzles, and styles. There is the story of Susanna, our narrator, and there is a diary of May, Susanna's twin sister---a story within a story. To further complicate matters, both narratives are "interrupted" by May, who manifests an uncanny ability to project her thoughts into Susanna's mind. In a sense, both characters know and do not know what is happening, and their struggle to come to terms with multiple ways of "knowing" is manifested in the structure, which experiments with visual layout and language in new, interesting ways. This …
From Wise Woman To Mutilated Hag: Witchcraft Violence In Ghana, Laura A. Truxler
From Wise Woman To Mutilated Hag: Witchcraft Violence In Ghana, Laura A. Truxler
Electronic Theses and Dissertations 2000 - 2009
Gender based witchcraft violence in Ghana is one of the ways in which violence against women manifests itself in the society. Historical analysis of witchcraft in Africa is widely addressed in the literature, however, there is a comparative neglect of the gender dimensions of witchcraft violence and consequences for such women in terms of human rights violations. Within the northern agriculture regions of Ghana, the legitimacy of female land inheritance, in addition to government pressure to seek out western medical care instead of low-cost traditional herbalists, are threatening power structures and sparking witchcraft violence. Locating witchcraft violence in Ghana within …
Framing Bad Art: A Semiotic View Of Nathaniel Hawthorne's The Blithedale Romance, Scott B. Givonetti
Framing Bad Art: A Semiotic View Of Nathaniel Hawthorne's The Blithedale Romance, Scott B. Givonetti
Electronic Theses and Dissertations 2000 - 2009
Nathaniel Hawthorne's The Blithedale Romance has been criticized contemporaneously and subsequently by such figures as F. O. Matthiessen, Mark Van Doren, and Rudolph Von Abele for its lack of romanticism or realism, depending upon the critic. This thesis uses a semiotic approach to explore Hawthorne's deconstruction of his first-person narrator, Miles Coverdale, and the resulting confusion among critics regarding authorial control in what some call his "anti-romance." Coverdale, as a detached artist, is responsible for reality's misinterpretation and misrepresentation, somewhat lampooning Transcendentalism. The triadic relationship of object, sign, and interpretant modeled by Charles Sanders Peirce is discussed using Liszka, Sebeok, …
Gifts From Home: Material Culture And American Immigrant Women In The 20th Century, Victoria L. Thur
Gifts From Home: Material Culture And American Immigrant Women In The 20th Century, Victoria L. Thur
Electronic Theses and Dissertations 2000 - 2009
This thesis will explore material culture by focusing on textiles and needlework of American immigrant women in the twentieth-century. It will feature three textiles: the Fishman bris dress from Britain, traditional Ukrainian embroidery, and refugee Hmong story cloths. Material culture is an interdisciplinary field that incorporates a wide variety of sources, theories, and interpretations. Social history incorporates voices and sources that have been disregarded in the mainstream narrative. Without scholarship in material culture, these sources would be lost forever. Textiles and their study allow for a wider and more inclusive interpretation of the American experience as immigrant and female. Most …
Hawthorne's Play On Gender And Sexuality In "The Blithedale Romance", Brooke J. Rubin
Hawthorne's Play On Gender And Sexuality In "The Blithedale Romance", Brooke J. Rubin
Electronic Theses and Dissertations 2000 - 2009
Feminist critics have primarily concentrated on the character of Zenobia, Nathaniel Hawthorne's premier feminist in The Blithedale Romance, to unravel Hawthorne's stance on the emergent sexual politics of the time. This thesis not only examines the importance of Zenobia but also analyzes the significance of Hawthorne's allusions to gender and sexuality constructs in terms of his other characters: Coverdale, Hollingsworth, Priscilla, Westervelt, and Moodie. In addition, I argue that Hawthorne's purpose is to experiment with societal constructs of gender and sexuality among his central characters, a literary experiment that inadvertently subverts his ostensible traditional, patriarchal perspective. In essence, my reading …
Heartbeat Of A Caring Leader, Lynn K. Robbins
Heartbeat Of A Caring Leader, Lynn K. Robbins
Electronic Theses and Dissertations 2000 - 2009
This doctoral dissertation explores the life of an African-American female elementary school principal using a unifying qualitative method incorporating biography, portraiture and anthropology called A renaissance method for studying leadership: A caring perspective. A portrait of the principal was derived using this method where verbatim statements were taken from friends, family, teachers, colleagues and supervisors as well as the principal herself at the school site and the town where she was raised to identify emerging themes. The findings indicate that her humanistic approach to leading in high poverty and minority schools was grounded on her ethic of caring, one that …
Hamiltonian Methods In The Quantization Of Gauge Systems, Ruslan Vaulin
Hamiltonian Methods In The Quantization Of Gauge Systems, Ruslan Vaulin
Electronic Theses and Dissertations 2000 - 2009
The new formalism for quantization of gauge systems based on the concept of the dynamical Hamiltonian recently introduced as a basis for the canonical theory of quantum gravity was considered in the context of general gauge theories. This and other Hamiltonian methods, that include Dirac's theory of extended Hamiltonian and the Hamiltonian reduction formalism were critically examined. It was established that the classical theories of constrained gauge systems formulated within the framework of either of the approaches are equivalent. The central to the proof of equivalence was the fact that the gauge symmetries resuIt in the constraints of the first …
Heartland Germans: Cultural Maintenance In Mid-Nineteenth Century America, Madelyn Witt Lavigne
Heartland Germans: Cultural Maintenance In Mid-Nineteenth Century America, Madelyn Witt Lavigne
Electronic Theses and Dissertations 2000 - 2009
Midwestern Germans who populated Indianapolis, St. Louis, Chicago and St. Paul represented a kind of cultural identity that revealed an ethnic pride. Through the church, the press, their language, social organizations and political involvement, these Germans demonstrated the tenacity of a people willing to risk the security of their homeland for a better life in America and in the process established a set of cultural norms that reflected a significant attempt to maintain their ethnic identity. During the years 1830-1870, the pull of cheap and available land fueled the chain migration that led to the largest influx of German immigrants …
Implementation Of The Sensor-Mac Protocol For The Jist/Swans Simulator, Veerendra. Tippanagoudar
Implementation Of The Sensor-Mac Protocol For The Jist/Swans Simulator, Veerendra. Tippanagoudar
Electronic Theses and Dissertations 2000 - 2009
In recent years, advances in wireless technologies have enabled novel applications for wireless devices. Sensor network is one such application that consists of large number of battery-operated nodes. To simulate such networks with large number of nodes, a wireless sensor network simulator that is highly scalable is vital. JiST/SWANS is one such simulator that is highly scalable. However, the JiST/SWANS MAC layer implementation of 802.11b is not suitable for sensor networks, which are energy-constrained. Hence, our main focus is to implement the S-MAC protocol in JiST/SWANS. The S-MAC protocol allows the nodes to go to sleep and thereby it helps …
Instructional Leadership In High Schools: The Effects Of Principals, Assistant Principals, And Department Heads On Student Achievement, Tara Lynn Todd
Instructional Leadership In High Schools: The Effects Of Principals, Assistant Principals, And Department Heads On Student Achievement, Tara Lynn Todd
Electronic Theses and Dissertations 2000 - 2009
The purpose of the study was to examine the influence of instructional leadership on student achievement through the instructional leadership of principals, assistant principals and math department heads at the high school level. The Principal Instructional Management Rating Scale was used to quantify instructional leadership in ten different job functions. The research questions were as follows: 1. Can the instructional leadership of principals, assistant principals, and math department heads be described at the high school level? 2. Whose instructional leadership has the greatest relationship to student achievement, principals, assistant principals, or math department heads? 3. Does team alignment in instructional …
Indicators Linked To The Success Of Students With Psychological Disabilities In Urban Community College Allied Health Sciences Programs, Deborah A. Casey
Indicators Linked To The Success Of Students With Psychological Disabilities In Urban Community College Allied Health Sciences Programs, Deborah A. Casey
Electronic Theses and Dissertations 2000 - 2009
The purpose of this study was to identify what climate indicators (attitudinal, support provision, student interaction) found in allied health sciences classroom and clinical settings at a northwest community college contribute to the success of students with psychological disabilities. Three climate assessments and a series of interviews revealed crucial information regarding academic support necessary to assist students with psychological disabilities within the allied health sciences. Utilizing mixed methodologies, the researcher collected and analyzed data during the Fall 2005 academic quarter from 177 climate assessments and facilitated 33 interviews, five student focus groups, and five follow-up interviews with students with psychological …
Initial Evaluation Of Organotin Monomers And Polymers As Potential Anticancer Agents, Randy D. Doucette
Initial Evaluation Of Organotin Monomers And Polymers As Potential Anticancer Agents, Randy D. Doucette
Electronic Theses and Dissertations 2000 - 2009
A large number of metal-containing compounds show significant activity against cancer cells and incorporating a metal into a polymer offers several possible advantages. Compounds of the type R2SnCl2 (R = methyl, ethyl, propyl, butyl, t-butyl, octyl and phenyl) were tested for the ability to inhibit the growth of Balb 3T3 mouse fibroblast cells and CAOV3 human ovarian carcinoma cells. Polymers of 2-chloro-1,4-benzenediamine and the same organotin dichloride were synthesized and tested as well. For both monomers and polymers, the pattern of growth inhibition relative to the R group was butyl > propyl = t-butyl = octyl = phenyl > ethyl > methyl. This …
Instructional Leadership: Principals Making A Difference With High-Poverty And Minority Populations To Improve Instruction And Increase Student Achievement, Julie. Hopkins
Electronic Theses and Dissertations 2000 - 2009
The purpose of the study was to examine instructional leadership through an in-depth multi-case study of three high poverty and high minority elementary school sites where the principals had been identified as instructional leaders. The study identified how schools with unique populations practiced instructional leadership and compared the methods used to the six standards described by the NAESP. In addition, the research identified actions of instructional leaders used to enhance school improvement efforts in schools serving high poverty and high minority populations while contributing to the understanding of the principal's role as an instructional leader. The three findings were: that …
Investigation Of Flow Patterns Using Geochemical Tracers In The Floridan Aquifer System, Naples, Florida, E. Edward Rectenwald
Investigation Of Flow Patterns Using Geochemical Tracers In The Floridan Aquifer System, Naples, Florida, E. Edward Rectenwald
Electronic Theses and Dissertations 2000 - 2009
This study investigated flow patterns in the FAS and tested Kohout's theory of "cyclic flow" in the vicinity of Naples, Florida. Temperature logs were analyzed to identify a reverse geothermal gradient in the Floridan aquifer system. The geochemical analysis consisted of inorganics (major cations and anions), stable isotopes (2H, 18O), radiocarbon (14C), and noble gas (He, Ne, Ar, Kr, Xe) data. The temperature logs were inconclusive in identifying a reverse geothermal gradient in the study area. The geochemical analysis suggests that within the FAS relatively old meteoric freshwater circulates in the UFA over relatively young seawater of the MCU and …
Influence Of Consumers' Trust Beliefs On Intentions To Transact In The Online Environment: An E-Tail Study, Enrique P. Becerra
Influence Of Consumers' Trust Beliefs On Intentions To Transact In The Online Environment: An E-Tail Study, Enrique P. Becerra
Electronic Theses and Dissertations 2000 - 2009
With the increased importance of retailing through the Internet, or e-tailing, researchers and practitioners alike have been interested in the role that trust can play in intentions to transact online. However, influences of trust on intentions to provide personal information to complete the transaction, and influences of trust in the product category, and/or in the brand, on intentions to transact, have received little attention. This research fills the gap in the exiting literature by understanding the influence of product category trust, brand trust and vendor trust on intentions to transact online, a combination of intentions to purchase and intentions to …