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Articles 8101 - 8130 of 10930
Full-Text Articles in Entire DC Network
Evaluation Of Climatic And Ecohydrological Effects On Longwave Radiation And Evapotranspiration, Maria Rizou
Evaluation Of Climatic And Ecohydrological Effects On Longwave Radiation And Evapotranspiration, Maria Rizou
Electronic Theses and Dissertations
Modern tools, nontraditional datasets and a better understanding of the interaction between climate and ecohydrology are continuously being developed as today's society is in critical need for improving water management, predicting hydrometeorological hazards and forecasting future climate. In particular, the study of the intra- and inter-annual variations in grass productivity and evapotranspiration caused by variations in precipitation/soil moisture and other biophysical factors is of great significance due to their relation to future climatic changes. The research presented here falls in three parts. In the first part of the dissertation, a land use adaptable model, based on the superposition of the …
Sustainable Fault-Handling Of Reconfigurable Logic Using Throughput-Driven Assessment, Carthik Sharma
Sustainable Fault-Handling Of Reconfigurable Logic Using Throughput-Driven Assessment, Carthik Sharma
Electronic Theses and Dissertations
A sustainable Evolvable Hardware (EH) system is developed for SRAM-based reconfigurable Field Programmable Gate Arrays (FPGAs) using outlier detection and group testing-based assessment principles. The fault diagnosis methods presented herein leverage throughput-driven, relative fitness assessment to maintain resource viability autonomously. Group testing-based techniques are developed for adaptive input-driven fault isolation in FPGAs, without the need for exhaustive testing or coding-based evaluation. The techniques maintain the device operational, and when possible generate validated outputs throughout the repair process. Adaptive fault isolation methods based on discrepancy-enabled pair-wise comparisons are developed. By observing the discrepancy characteristics of multiple Concurrent Error Detection (CED) configurations, …
Modeling Lane-Based Traffic Flow In Emergency Situations In The Presence Of Multiple Heterogeneous Flows, Amani Saleh
Modeling Lane-Based Traffic Flow In Emergency Situations In The Presence Of Multiple Heterogeneous Flows, Amani Saleh
Electronic Theses and Dissertations
In recent years, natural, man-made and technological disasters have been increasing in magnitude and frequency of occurrence. Terrorist attacks have increased after the September 11, 2001. Some authorities suggest that global warming is partly the blame for the increase in frequency of natural disasters, such as the series of hurricanes in the early-2000's. Furthermore, there has been noticeable growth in population within many metropolitan areas not only in the US but also worldwide. These and other facts motivate the need for better emergency evacuation route planning (EERP) approaches in order to minimize the loss of human lives and property. This …
Alayzing The Effects Of Modularity On Search Spaces, Ozlem Garibay
Alayzing The Effects Of Modularity On Search Spaces, Ozlem Garibay
Electronic Theses and Dissertations
We are continuously challenged by ever increasing problem complexity and the need to develop algorithms that can solve complex problems and solve them within a reasonable amount of time. Modularity is thought to reduce problem complexity by decomposing large problems into smaller and less complex subproblems. In practice, introducing modularity into evolutionary algorithm representations appears to improve search performance; however, how and why modularity improves performance is not well understood. In this thesis, we seek to better understand the effects of modularity on search. In particular, what are the effects of module creation on the search space structure and how …
Development Of Hydraulic And Soil Properties For Soil Amendments And Native Soils For Retention Ponds In Marion County, Florida, Lisa Naujock
Electronic Theses and Dissertations
The vadose zone plays an important role in managing stormwater. Predicting the water balance and water movement is crucial in ground water remediation to keep water suitable for use. To aid in understanding soils ability to transmit and store water, soil and hydraulic properties were analyzed for soils in Marion County, Florida, and potential soil amendments. Soil and hydraulic properties were examined for two soil amendments and for the soils in Marion County, Florida, at the South Oak and the Hunter's Trace locations. The hydraulic properties measured were the soil moisture retention curve (SMRC) and saturated hydraulic conductivity (Ks). The …
Reducing Effluent Phosphorus And Nitrogen Concentrations From A Stormwater Detention Pond Using A Chamber Upflow Filter And Skim, Patrick Ryan
Electronic Theses and Dissertations
Stormwater runoff is a known pollutant source capable of causing surface water degradation, especially in highly populated areas such as Central Florida. Wet detention ponds manage this stormwater, but most of the ponds do not remove enough nutrients, specifically nitrogen and phosphorus, to meet TMDL regulations. This research provides a possible addition to a detention pond in Seminole County, Florida using a Chamber Upflow Filter and Skimmer (CUFS), which can increase the removal of phosphorus and nitrogen by the system. Water enters the system through the skimmer, which floats on the surface of the detention pond. It travels from the …
Developmemnt Of A Modeling And Simulation Training Needs Model For Selected Defense Acquisition Workforce Communities, Lik Chun Peh
Developmemnt Of A Modeling And Simulation Training Needs Model For Selected Defense Acquisition Workforce Communities, Lik Chun Peh
Electronic Theses and Dissertations
The DoD Modeling and Simulation Steering Committee (M&S SC) identified Modeling and Simulation (M&S) as an educational objective for the Acquisition, Technology and Logistics (AT&L) workforce. Notably, past usages of M&S in system acquisitions for both DoD and commercial industry have demonstrated improvements in efficiency and effectiveness over traditional acquisition techniques. However, to achieve expected and consistent performance by this workforce in these new techniques, the M&S essential skill requirements for this workforce may be extensive. This research aims to validate the content and level of competency in selected M&S tools and technology necessary for consistent workforce performance. The notion …
Determining Florida Landfill Odor Buffer Distances Using Aermod, Veronica Figueroa
Determining Florida Landfill Odor Buffer Distances Using Aermod, Veronica Figueroa
Electronic Theses and Dissertations
As U.S. landfills continue to grow in size, concerns about odorous gas emissions from landfills are increasing. For states that are expanding in population, such as Florida, odors from landfills are a major concern because new housing developments, needed to accommodate the rapid population growth, are creeping closer and closer to the existing landfills. As homes get closer to landfills, odor complaints are likely to become more frequent, causing landfill managers increased problems with public interactions. Odor buffer zones around landfills need to be established to give municipalities tools to help prevent the building of future homes too close to …
Integration Of A Nanostructure Embedded Thermoresponsive Polymer For Microfluidic Applications, Ghanashyam Londe
Integration Of A Nanostructure Embedded Thermoresponsive Polymer For Microfluidic Applications, Ghanashyam Londe
Electronic Theses and Dissertations
This work describes the modeling, synthesis, integration and characterization of a novel nanostructure embedded thermoresponsive material for microfluidic applications. The innumerable applications of thermoresponsive surfaces in the recent years have necessitated the development of a rigorous mathematical treatment for these surfaces to understand and improve their behavior. An analytical model is proposed to describe the transfer characteristic (variation of contact angle versus temperature) of a unique switchable, nanostructured, thermoresponsive surface consisting of silica nanoparticles and the thermoresponsive polymer, Poly(N-isopropylacrylamide ) (PNIPAAm) which changes its wetting angle upon heating. Important metrics such as the absolute lower critical solution temperature, threshold & …
User-Defined Patterning Of Neural Progenitor Cells On 3d Micropillar Arrays Using Round Cross-Sectional Geometry, Specific Dimen, Andrea Wesser
User-Defined Patterning Of Neural Progenitor Cells On 3d Micropillar Arrays Using Round Cross-Sectional Geometry, Specific Dimen, Andrea Wesser
Electronic Theses and Dissertations
The ability to control stem cell functions, particularly neuronal progenitors, has long since been believed to be the key to successful treatment of neurodegenerative disorders such as Alzheimer's, Parkinson's and accidents involving head trauma. The neurology field calls for many new solutions to address the controlled neural stem cell seeding and placement of cells for neural tissue regeneration. Self-assembled monolayers (SAM) from the alkanethiol group provide a straightforward applicable, reliable treatment for cell adhesion. An ODT/gold treatment was used to adhere the cells to patterned areas, due mainly to a high confluence of cells attracted to it, as well as …
A Comparative Analysis Of Green Roof Designs Including Depth Of Media, Drainage Layer Materials, And Pollution Control Media, Matt Kelly
Electronic Theses and Dissertations
Population growth has lead to an increase in development and impervious areas in urban settings. Post-development conditions cause several problems for stormwater management such as limited space for stormwater storage systems and the conveyance of pollution picked up by runoff to near by water bodies. Green Roofs with cisterns have been shown to attenuate the peak flow of storm events and reduce the pollution load leaving a site and entering nearby water bodies. The purpose of this research is to expand the available research data on green roofs with cisterns by investigating the water quality and hydrology effects of different …
The Plasma Kallikrein Kinin System Modulates Endothelial Cells / By Jia Yang, Jia Yang
The Plasma Kallikrein Kinin System Modulates Endothelial Cells / By Jia Yang, Jia Yang
Electronic Theses and Dissertations
No abstract provided.
The Impact Of Gender Role Orientation On Childhood Friendship Patterns, Ashley O. Durkee
The Impact Of Gender Role Orientation On Childhood Friendship Patterns, Ashley O. Durkee
Electronic Theses and Dissertations
No abstract provided.
Factors Affecting Spotted Salamander Breeding Pond Selection / Patrick Yamnik, Patrick Yamnik
Factors Affecting Spotted Salamander Breeding Pond Selection / Patrick Yamnik, Patrick Yamnik
Electronic Theses and Dissertations
No abstract provided.
Analysis Of Phased Array Antennas And Compact Digital Phase Shifter / By Suresh Kumar Yada, Suresh Kumar Yada
Analysis Of Phased Array Antennas And Compact Digital Phase Shifter / By Suresh Kumar Yada, Suresh Kumar Yada
Electronic Theses and Dissertations
No abstract provided.
Sn79, A Novel Sigma-2 Receptor Antagonist, Attenuates Cocaine-Induced Behaviors In Mice, Nidhi Kaushal
Sn79, A Novel Sigma-2 Receptor Antagonist, Attenuates Cocaine-Induced Behaviors In Mice, Nidhi Kaushal
Electronic Theses and Dissertations
No abstract provided.
The Effects Of Cold Temperature On Gait Initiation And Dynamic Balance In Young And Older Females, Christi Brewer
The Effects Of Cold Temperature On Gait Initiation And Dynamic Balance In Young And Older Females, Christi Brewer
Electronic Theses and Dissertations
No abstract provided.
Nuclear Magnetic Resonance Investigation Of Loci Of Solubilization And The Effect Of Ionic Strength Changes, Olumuyiwa Olaotan Olaosun
Nuclear Magnetic Resonance Investigation Of Loci Of Solubilization And The Effect Of Ionic Strength Changes, Olumuyiwa Olaotan Olaosun
Electronic Theses and Dissertations
No abstract provided.
Hurricane Katrina's Impact On The Mississippi Gulf Coast : General Self-Efficacy And Its Relationship To Ptsd Prevalence And Severity, Michael J. Hirschel
Hurricane Katrina's Impact On The Mississippi Gulf Coast : General Self-Efficacy And Its Relationship To Ptsd Prevalence And Severity, Michael J. Hirschel
Electronic Theses and Dissertations
No abstract provided.
Column Synthesis Of Manganese Oxide Coatings On Ottawa Sand, Olusegun Adegboyega Ojewole
Column Synthesis Of Manganese Oxide Coatings On Ottawa Sand, Olusegun Adegboyega Ojewole
Electronic Theses and Dissertations
No abstract provided.
The Utilization Of Low-Cost Commodity Parallel Graphics Processors In High Performance Real-Time Computing Systems, Gerald W. Godbold
The Utilization Of Low-Cost Commodity Parallel Graphics Processors In High Performance Real-Time Computing Systems, Gerald W. Godbold
Electronic Theses and Dissertations
No abstract provided.
Fine Scale Patterns In Microbial Extracellular Enzyme Activity During Leaf-Litter Decomposition In A Stream And Its Floodplain / By Kurt Smart, Kurt Smart
Electronic Theses and Dissertations
No abstract provided.
The Influence Of Medical Education On The Frequency And Type Of Medical Board Discipline Received By Licensed Florida Physicians, Richard Bonnell Iii
The Influence Of Medical Education On The Frequency And Type Of Medical Board Discipline Received By Licensed Florida Physicians, Richard Bonnell Iii
Electronic Theses and Dissertations
It has been estimated that in the United States, between 44,000 to 98,000 patients succumb to medical errors each year. Due to a shortage of graduates of domestic medical schools, many graduates of foreign medical schools are practicing in the United States. The medical education received in foreign medical schools may not be equivalent to the medical education received in domestic medical schools, which are schools located in the United States, Puerto Rico and Canada. Differences due to the educational backgrounds of the foreign-schooled physicians may contribute to an increase in medical board disciplining. Furthermore, graduates of medical schools where …
Memories And Milestones: The Brighton Seminole Tribe Of Florida And The Digitization Of Culture, April Van Camps
Memories And Milestones: The Brighton Seminole Tribe Of Florida And The Digitization Of Culture, April Van Camps
Electronic Theses and Dissertations
This dissertation project discusses individual photographs of the Brighton Seminole Tribe of Florida from the early 1900s to the current period, each organized by way of their institutional significance, not their place in chronological history. Following Jean Mohr and John Berger's model in Another Way of Telling, I create a narrative for the pictures with a discussion of historical information, current data from interviews, Tribal members' stories, and my own personal story as it is tethered to the tribe. The research addresses the following questions: Can photography offer a technological means to communicate culture in a vital, organic way? Can …
Modeling Canopy Photosynthesis Of A Scrub-Oak Ecosystem Under Elevated Co2, Lori Jones
Modeling Canopy Photosynthesis Of A Scrub-Oak Ecosystem Under Elevated Co2, Lori Jones
Electronic Theses and Dissertations
Rising atmospheric CO2 and the need to understand potential impacts on terrestrial ecosystems has become increasingly recognized. Models can play a beneficial part in this research to enhance understanding of ecosystem responses to changing conditions like elevated CO2. In this study, data from a long term elevated CO2 experiment in a native forested ecosystem in east central Florida were employed to assess the utility of a multi-layer canopy photosynthesis model as a tool to better understand the responses to elevated CO2 in this ecosystem. Model results compared satisfactorily with the canopy gas exchange measurements in this ecosystem for the period …
Reestablishing The Juneberry On The Fort Berthold Indian Reservation: Cultural, Horticultural, And Educational Connections, Kerry E. Hartman
Reestablishing The Juneberry On The Fort Berthold Indian Reservation: Cultural, Horticultural, And Educational Connections, Kerry E. Hartman
Electronic Theses and Dissertations
Tribal people of the Northern Great Plains have utilized plants for centuries. Amelanchier anifolia (Juneberries/Serviceberries) historically played an important part in the diet and culture of the Mandan, Hidatsa, and Arikara (MHA) Tribal Nations. Research conducted as part of this study into historical and contemporary uses of the Juneberry by MHA Tribal Members indicated extensive historical use and a high interest in Juneberry reestablishment for cultural, nutritional, and economic reasons. Previous research on Juneberries has investigated factors including state of dormancy, propagation method, transplant type, and mulch type. Another purpose of this study was to elucidate the impact of presence …
The Development Of A "Genetic Eyewitness" Profiling System For Low Template Forensic Specimens: Identification Of Novel Protein, Rna, And Dna Biomarkers, Erin Hanson
Electronic Theses and Dissertations
In many criminal investigations, valuable information regarding the physical appearance of suspected perpetrators or the time and order of events that transpired are provided by eyewitness accounts. However, the information obtained from eyewitnesses is often constrained by human recollection or subjective accounts and provides a biased description of the perpetrator's appearance or an inaccurate time line of events. Additionally, in numerous situations eyewitness accounts may not be available. An increasing reliance therefore is placed on the biological evidence recovered during criminal investigations to act as a silent witness, providing unbiased and scientific information that may aid in the resolution of …
Technological Disasters: An Investigation Of The Conservation Of Resources Theory On Depression, Brian Gentry
Technological Disasters: An Investigation Of The Conservation Of Resources Theory On Depression, Brian Gentry
Electronic Theses and Dissertations
Researchers studying the affects of resource loss following a technological disaster have exclusively investigated the acute period directly after the event occurred. This study applied Hobfoll's (1988, 1989) Conservation of Resources model in order to examine the long term effects of resource loss on depression in Cordova, Alaska a decade after the Exxon Valdez Oil spill. Results suggest that resource loss was a more prominent predictor for depression than demographics, involvement in the on-going litigation, or commercial fishing jobs. The research concludes that certain aspects of resource loss are critical in the development of depression after a technological disaster, and …
Recovery And Restoration Of The Seagrass Halodule Wrightii After Boat Propeller Scar Damage In A Pole-Troll Zone In Mosquito Lag, Katherine Grablow
Recovery And Restoration Of The Seagrass Halodule Wrightii After Boat Propeller Scar Damage In A Pole-Troll Zone In Mosquito Lag, Katherine Grablow
Electronic Theses and Dissertations
This study combined documentation of four boat propeller scar types in Halodule wrightii seagrass beds in Mosquito Lagoon, Florida with manipulative field experiments to document scar recovery times with and without restoration. Scar types ranged from the most severe scar type (Type 1) with trench formation which had no roots or shoots in the trench, to the least severe (Type 4) scars that had no depth, intact roots and shoots shorter than the surrounding canopy. For 110 measured existing scars, the frequency of each scar type was 56% for Type 1, 10% for Type 2, 7% for Type 3, and …
Prevalence And Severity Of Fibropapillomatosis In Juvenile Green Turtles (Chelonia Mydas) In Three Habitats On Florida's Eas, Kelly Borrowman
Prevalence And Severity Of Fibropapillomatosis In Juvenile Green Turtles (Chelonia Mydas) In Three Habitats On Florida's Eas, Kelly Borrowman
Electronic Theses and Dissertations
Fibropapillomatosis (FP) is a tumor-forming disease mainly found in juvenile green turtles (Chelonia mydas) inhabiting Florida's east coast. Despite increased research on the herpes virus that putatively causes it, long-term assessment is still needed of the distribution and severity of FP. Using the decades-long database compiled by the University of Central Florida Marine Turtle Research Group, I determined FP severity and distribution at three different sites: Indian River Lagoon (IRL), Sabellariid Worm Reef (SWR) and Trident Submarine Basin (TSB). Fibropapillomatosis occurred in > 50% of IRL turtles, 18% of SWR turtles and <1% of TSB turtles. Regression of FP tumors was correlated with its prevalence, i.e. when and where FP was common, tumor regression was common. The probability of a turtle being non-afflicted or mildly afflicted increased with both increasing straight-line carapace length (SCL) and increasing relative body condition (residuals of log body mass versus log SCL). Mean annual growth rates of IRL and SWR turtles did not vary with FP severity; however, mean annual growth rates in IRL (1.10 cm/y) were significantly higher than in SWR (1.05 cm/y) and TSB (1.04 cm/y). Annual apparent survival estimates for IRL and TSB turtles were 0.72 and 0.73, respectively, and were constant over time. Even with increased prevalence of FP, annual apparent survival estimates were constant and similar to survival estimates of juvenile green turtles in areas without FP. In IRL, survival rates among FP Categories 0, 1 and 2 were similar (0.74, 0.74 and 0.81 respectively) and lower only for FP Category 3 (0.63). Thus, while FP occurred in > 50% of turtles in some Florida east coast populations, …