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- Title
- NOISE PREDICTION METHODS.
- Creator
- Perry, Nicole Kent, Glegg, Stewart, Florida Atlantic University, Department of Ocean and Mechanical Engineering, College of Engineering and Computer Science
- Abstract/Description
-
Noise prediction methods are necessary in aspects of aerodynamic and hydrodynamic engineering. Predictive models of noise from rotating machinery ingesting turbulence is of much interest and relatively recently studied. This thesis presents a numerical method processed in a series of three codes that was written and edited to receive input for geometrical features of rotating machinery, as well as, adjustments to turbulent operating conditions. One objective of this thesis was to create a...
Show moreNoise prediction methods are necessary in aspects of aerodynamic and hydrodynamic engineering. Predictive models of noise from rotating machinery ingesting turbulence is of much interest and relatively recently studied. This thesis presents a numerical method processed in a series of three codes that was written and edited to receive input for geometrical features of rotating machinery, as well as, adjustments to turbulent operating conditions. One objective of this thesis was to create a platform of analysis for any rotor design to obtain five parameters necessary for noise prediction; 1) the hydrodynamic inflow angle to each blade section, 2) chord length as a function of radius, 3) the cylindrical radius of each blade section, 4) & 5) the leading edge as a function of span in both the rotor-plane and as a function of axial distance downstream. Another objective of this thesis was to use computational fluid dynamics (CFD), specifically by using a Reynold’s-Averaged Navier-Stokes (RANS) Shear Stress Transport (SST) 𝑘 − 𝜔 model simulation in ANSYS Fluent, to obtain the turbulent kinetic energy distribution, also necessary in the noise prediction method presented. The purpose of collecting the rotor geometry data and turbulent kinetic energy data was to input the values into the first of the series of codes and run the calculation so that the output spectra could be compared to experimental noise measurements conducted at the Stability Wind Tunnel at Virginia Tech. The comparison shows that the prediction method results in data that can be reliable if careful attention is payed to the input parameters and the length scale used for analysis. The significance of this research is the noise prediction method presented and used simplifies the model of turbulence by using a correlation function that can be determined by a one-dimensional function while also simplifying the iterations completed on rotor blade to calculate the unsteady forces.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013487
- Subject Headings
- Noise, Aerodynamic noise, Hydrodynamics, Noise control--Mathematical models
- Format
- Document (PDF)
- Title
- Homebound: Spatializing the Immigrant Experience by Breaking Down Barriers in Virtual Reality.
- Creator
- Alvarez Arias, Alberto, Maraffi, Christopher, Florida Atlantic University, School of Communication & Multimedia Studies, Dorothy F. Schmidt College of Arts and Letters
- Abstract/Description
-
This thesis explores the production process of developing a virtual reality experience with an emphasis on digital humanities and the methods of adapting real-world events, narratives, and media coverage into an interactive, location based VR experience. The thesis contextualizes the production of an accompanying media project, which is informed by the history of U.S migration and the media’s impact on the opinion of Americans. Through the observation of production methods, this paper...
Show moreThis thesis explores the production process of developing a virtual reality experience with an emphasis on digital humanities and the methods of adapting real-world events, narratives, and media coverage into an interactive, location based VR experience. The thesis contextualizes the production of an accompanying media project, which is informed by the history of U.S migration and the media’s impact on the opinion of Americans. Through the observation of production methods, this paper summarizes the process of creating a VR experience that expands the established production pipeline to more fluidly produce immersive interactive content. Using Homebound: The Interactive Immigrant Experience, a collaborative VR project as a prototype for these methods, we were able to integrate and develop a media production pipeline that uses off the shelf hardware in unison with Unreal Engine 4 to produce a prototype VR experience that follows the narrative on a Latin American Immigrant.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013461
- Subject Headings
- Virtual reality, Digital humanities, Immigrant experiences, Empathy
- Format
- Document (PDF)
- Title
- INFLUENCE OF UV LIGHT ON VITAMIN D AND IMMUNE FUNCTION OF GREEN (CHELONIA MYDAS) SEA TURTLES WITH FIBROPAPILLOMATOSIS.
- Creator
- Garefino, Victoria E., Milton, Sarah L., Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
- Abstract/Description
-
Green sea turtles (Chelonia mydas) are an endangered species prone to a debilitating disease called fibropapillomatosis (FP). The aim of this study was to determine the influence of UV light on vitamin D levels and immune function in juvenile green sea turtles with FP. Phagocytosis, plasma vitamin D levels and viral load of ChHV5 were measured for FP- and FP+ turtles kept at the Gumbo Limbo Nature Center (GLNC) and for turtles caught at the St. Lucie power plant. Turtles kept at GLNC were...
Show moreGreen sea turtles (Chelonia mydas) are an endangered species prone to a debilitating disease called fibropapillomatosis (FP). The aim of this study was to determine the influence of UV light on vitamin D levels and immune function in juvenile green sea turtles with FP. Phagocytosis, plasma vitamin D levels and viral load of ChHV5 were measured for FP- and FP+ turtles kept at the Gumbo Limbo Nature Center (GLNC) and for turtles caught at the St. Lucie power plant. Turtles kept at GLNC were housed in tanks exposed to varying amounts of UV light. Turtles brought into GLNC had lower phagocytosis compared to turtles at the St. Lucie power plant. Individuals exposed to greater UV light had higher plasma vitamin D levels and a more successful recovery. The results of this project will provide rehabilitation facilities with a mechanism to improve the recovery of animals with this disease.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013467
- Subject Headings
- Chelonia mydas, Green turtle--Diseases, Fibropapillomatosis, Ultraviolet radiation, Vitamin D
- Format
- Document (PDF)
- Title
- SMARTPHONE BASED SICKLE CELL DISEASE DETECTION AND ITS TREATMENT MONITORING FOR POINT-OF-CARE SETTINGS.
- Creator
- Ilyas, Shazia, Asghar, Waseem, Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
-
The majority of Sickle Cell Disease (SCD) prevalence is found in Sub-Saharan Africa, where 80% of the world’s population who suffer from this disease are born. Due to a lack of diagnosis and early treatments, 50-90% of these children will die before they reach the age of five. Current methods used for diagnosing SCD are based on hemoglobin analysis such as capillary electrophoresis, ion-exchange high-performance liquid chromatography, and isoelectric focusing. They require expensive...
Show moreThe majority of Sickle Cell Disease (SCD) prevalence is found in Sub-Saharan Africa, where 80% of the world’s population who suffer from this disease are born. Due to a lack of diagnosis and early treatments, 50-90% of these children will die before they reach the age of five. Current methods used for diagnosing SCD are based on hemoglobin analysis such as capillary electrophoresis, ion-exchange high-performance liquid chromatography, and isoelectric focusing. They require expensive laboratory equipment and are not feasible in these low-resource countries. It is, therefore, imperative to develop an alternative and cost-effective method for diagnosing and monitoring of SCD. This thesis aims to address the development and evaluation of a smartphone-based optical setup for the detection of SCD. This innovative technique can potentially be applied for low cost and accurate diagnosis of SCD and improve disease management in resource-limited settings where the disease exhibits a high prevalence. This Point-of-Care (POC) based device offers the potential to improve SCD diagnosis and patient care by providing a portable and cost effective device that requires minimal training to operate and analyze.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013475
- Subject Headings
- Anemia, Sickle Cell, Point-of-Care Systems, Sickle cell anemia--Treatment, Sickle cell anemia--Diagnosis, Smartphones
- Format
- Document (PDF)
- Title
- REESTABLISHMENT OF A QUEEN CONCH, LOBATUS GIGAS, BREEDING POPULATION IN A MARINE PROTECTED AREA IN THE BAHAMAS.
- Creator
- Norton, Laura E. Issac, Davis, Megan, Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
- Abstract/Description
-
The queen conch, Lobatus gigas, is key to the Bahamian way of life. Recent studies suggest that commercial stocks will be depleted in The Bahamas in 10-15 years. In response to this, an egg farm was established in a historic breeding ground in Moriah Harbour Cay National Park, Exuma, Bahamas. Previously used for aquaculture, the egg farm concept was tested as a restoration method. Conch were tagged (n=251) and stocked in a 1,385 m2 (0.14 ha) circular enclosure at an equivalent density of 1...
Show moreThe queen conch, Lobatus gigas, is key to the Bahamian way of life. Recent studies suggest that commercial stocks will be depleted in The Bahamas in 10-15 years. In response to this, an egg farm was established in a historic breeding ground in Moriah Harbour Cay National Park, Exuma, Bahamas. Previously used for aquaculture, the egg farm concept was tested as a restoration method. Conch were tagged (n=251) and stocked in a 1,385 m2 (0.14 ha) circular enclosure at an equivalent density of 1,813/ha or 1 conch/5.5 m2. The egg farm was visited every 24-48 hours during the study period (May 26-August 14, 2019) to examine conch distribution, burial, predation, breeding, and egg mass laying. Queen conch Essential Fish Habitat was characterized in this study, contributing to a knowledge gap concerning conch spawning areas. No egg masses were laid, despite temperature, sediment solid-phase organics, calcium carbonate, and other seagrass habitat characteristics displaying similarities to previous studies in which conch spawned. It is speculated that egg laying did not occur due to handling disturbances, which may have caused the conch to resorb their gonads. Comprehensive recommendations are made for future egg farms intended for restoration.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013458
- Subject Headings
- Queen Conch, Bahamas, Marine protected areas, Ecosystem restoration
- Format
- Document (PDF)
- Title
- OBJECT-BASED LAND COVER CLASSIFICATION OF UAV TRUE COLOR IMAGERY.
- Creator
- Castillo, Stephen M., Nagarajan, Sudhagar, Florida Atlantic University, Department of Civil, Environmental and Geomatics Engineering, College of Engineering and Computer Science
- Abstract/Description
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Land cover classification is necessary for understanding the state of the surface of the Earth at varying regions of interest. Knowledge of the Earth’s surface is critical in land-use planning, especially for the project study area Jupiter Inlet Lighthouse Outstanding Natural Area, where various vegetation, wild-life, and cultural components rely on adequate land-cover knowledge. The purpose of this research is to demonstrate the capability of UAV true color imagery for land cover...
Show moreLand cover classification is necessary for understanding the state of the surface of the Earth at varying regions of interest. Knowledge of the Earth’s surface is critical in land-use planning, especially for the project study area Jupiter Inlet Lighthouse Outstanding Natural Area, where various vegetation, wild-life, and cultural components rely on adequate land-cover knowledge. The purpose of this research is to demonstrate the capability of UAV true color imagery for land cover classification. In addition to the objective of land cover classification, comparison of varying spatial resolutions of the imagery will be analyzed in the accuracy assessment of the output thematic maps. These resolutions will also be compared at varying training sample sizes to see which configuration performed best.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013454
- Subject Headings
- Land cover, Unmanned aerial vehicles, Drone aircraft in remote sensing, Images, Classification
- Format
- Document (PDF)
- Title
- Non Destructive Testing for the Influence of Infill Pattern Geometry on Mechanical Stiffness of 3D Printing Materials.
- Creator
- Hlinka, Michael, Jang, Jinwoo, Florida Atlantic University, Department of Civil, Environmental and Geomatics Engineering, College of Engineering and Computer Science
- Abstract/Description
-
This experiment investigated the effect of infill pattern shape on structural stiffness for 3D printed components made out of carbon fiber reinforced nylon. In order to determine the natural frequency of each specimen, nondestructive vibrational testing was conducted and processed using data acquisition software. After obtaining the acceleration information of each component, in response to ambient vibrational conditions and excitation, frequency response functions were generated. These...
Show moreThis experiment investigated the effect of infill pattern shape on structural stiffness for 3D printed components made out of carbon fiber reinforced nylon. In order to determine the natural frequency of each specimen, nondestructive vibrational testing was conducted and processed using data acquisition software. After obtaining the acceleration information of each component, in response to ambient vibrational conditions and excitation, frequency response functions were generated. These functions provided the natural frequency of each component, making it possible to calculate their respective stiffness values. The four infill patterns investigated in this experiment were: Zig Zag, Tri-Hex, Triangle, and Concentric. Results of the experiment showed that changing the infill pattern of a 3D printed component, while maintaining a constant geometry and density, could increase mechanical stiffness properties by a factor of two. Comprehensively, the experiment showed that infill pattern geometry directly attributes to the mechanical stiffness of 3D printed components.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013470
- Subject Headings
- 3D printing, Three-dimensional printing--Materials, Materials--Mechanical properties
- Format
- Document (PDF)
- Title
- PUNCTURE PERFORMANCE OF THE CAUDAL SPINES FROM TWO COASTAL STINGRAYS, HYPANUS SAY AND HYPANUS SABINUS.
- Creator
- Shea-Vantine, Caitlin, Kajiura, Stephen, Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
- Abstract/Description
-
A diagnostic characteristic of stingrays in the Family Dasyatidae is the presence of a defensive, partially-serrated spine located on the tail. The objective of this study is to assess the impacts of caudal spine morphology on puncture and withdrawal performance from two stingrays, Hypanus sabinus and Hypanus say. Spines have highly variable morphology. I used an Instron E1000 materials tester to quantify the puncture and withdraw forces from porcine skin, a model for human skin. I found no...
Show moreA diagnostic characteristic of stingrays in the Family Dasyatidae is the presence of a defensive, partially-serrated spine located on the tail. The objective of this study is to assess the impacts of caudal spine morphology on puncture and withdrawal performance from two stingrays, Hypanus sabinus and Hypanus say. Spines have highly variable morphology. I used an Instron E1000 materials tester to quantify the puncture and withdraw forces from porcine skin, a model for human skin. I found no significant differences between puncture and withdraw or between the species. By incorporating micro-CT scanning to quantify mineralization density, I quantified more mineralization along the shaft of the spine. Equal puncture and withdraw forces and increased mineralization along the spine shaft may create a stiffer structure that can be a persistent predator deterrent.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013494
- Subject Headings
- Stingrays, Dasyatidae, Spines (Zoology)
- Format
- Document (PDF)
- Title
- Reckoning.
- Creator
- LeVan, Jason, Ward, Julie Anne, Florida Atlantic University, Department of Visual Arts and Art History, Dorothy F. Schmidt College of Arts and Letters
- Abstract/Description
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Reckoning is a body of sculptural work that explores the emotional resonance contained within memory through a combination of personal ephemera and handcrafted objects. The physical presence of this work underscores the importance of its materiality, in both the handmade and collected objects, in emphasizing their ability to conjure a memory. Reckoning evokes the intangible emotions and overwhelming sensations that accompany the act of remembering, and an inability to forget.
- Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013480
- Subject Headings
- Art, Sculpture, Ephemera, Handicraft
- Format
- Document (PDF)
- Title
- The Real Effects of Shareholder Proposals: Purpose in the Context of Climate Change.
- Creator
- Tindall, Greg, Javakhadze, David, Florida Atlantic University, Department of Finance, College of Business
- Abstract/Description
-
Extant literature has struggled to identify definitive purpose for shareholder proposals, finding them to depend on their context. Progressively, climate change has gathered interest at annual meetings where shareholders present proposals related to the subject. The literature builds expectations for the role of obsolescence, regulation and other forms of activism to motivate innovation with respect to these proposals. The literature also establishes how diversification can serve as a defense...
Show moreExtant literature has struggled to identify definitive purpose for shareholder proposals, finding them to depend on their context. Progressively, climate change has gathered interest at annual meetings where shareholders present proposals related to the subject. The literature builds expectations for the role of obsolescence, regulation and other forms of activism to motivate innovation with respect to these proposals. The literature also establishes how diversification can serve as a defense. I test the impact that shareholder proposals have on the information environment and on the corporate behaviors of innovation and diversification. I find that capital markets are responsive to proposal pressures and that there are improvements in the information environment. I find that firms in receipt of shareholder proposals related to climate change innovate and diversify more. I find wealth enhancements for these corporate behaviors spurred by climate-related proposals. While definitive statements on causality may elude, my results suggest that shareholder proposals have real effects.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013437
- Subject Headings
- Corporations--Investor relations, Shareholder proposals, Climatic changes
- Format
- Document (PDF)
- Title
- TWO ESSAYS ON FINANCIAL REPORTING QUALITY: EXAMINING MANAGERIAL PLACE ATTACHMENT AND CREDIT ACCESS.
- Creator
- Frost, Tracie Sloop, Kohlbeck, Mark, Florida Atlantic University, School of Accounting, College of Business
- Abstract/Description
-
In essay 1, I investigate the association of place attachment and financial reporting quality. Management characteristics affect a wide range of corporate decisions, including decisions affecting financial reporting quality; however, the influence of managerial place attachment on corporate decision-making has received relatively little attention - even though place attachment is thought to play a significant role in forming individual identity. Place attachment affects the decisions that...
Show moreIn essay 1, I investigate the association of place attachment and financial reporting quality. Management characteristics affect a wide range of corporate decisions, including decisions affecting financial reporting quality; however, the influence of managerial place attachment on corporate decision-making has received relatively little attention - even though place attachment is thought to play a significant role in forming individual identity. Place attachment affects the decisions that individuals make with regards to social and environmental policies, lifestyle, and, in the corporate context, firmlevel policies. Because firms hire local CEOs and CFOs five to eight times more often than expected if geography were irrelevant to the matching process, the question of how managerial place attachment affects financial reporting outcomes is an important one. I investigate the effect of managerial place attachment on financial reporting quality in a sample of publicly traded U.S. firms. My findings indicate that firms with place attached CEOs display higher financial reporting quality, indicating a significant caretaking bond between CEO and stakeholders. CFOs, on the other hand, are marginally associated with lower financial reporting quality, indicating that they are more likely than CEOs to extract personal gain when they are local to their firm headquarters.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013442
- Subject Headings
- Financial statements, Management, Chief executive officers, Chief financial officers, Place attachment
- Format
- Document (PDF)
- Title
- THREE-DIMENSIONAL MOVEMENT AND HABITAT USE OF YOUNG WHITE SHARKS (CARCHARODON CARCHARIAS) IN THE NORTHWEST ATLANTIC OCEAN.
- Creator
- Shaw, Rachel Lynn, Ajemian, Matthew, Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
- Abstract/Description
-
Recent research confirmed white shark (Carcharodon carcharias) nursery habitat off Long Island, New York; however, additional research is required to determine the habitat use and fine-scale movements of young-of-the-year and juvenile white sharks within this nursery. Between 2016 and 2019, twenty-five white sharks were fitted with satellite and acoustic tags to better define habitat use. Individuals exhibited horizontal movements parallel to Long Island’s southern shoreline and coastal New...
Show moreRecent research confirmed white shark (Carcharodon carcharias) nursery habitat off Long Island, New York; however, additional research is required to determine the habitat use and fine-scale movements of young-of-the-year and juvenile white sharks within this nursery. Between 2016 and 2019, twenty-five white sharks were fitted with satellite and acoustic tags to better define habitat use. Individuals exhibited horizontal movements parallel to Long Island’s southern shoreline and coastal New Jersey. Log-likelihood chi-square analyses determined preference for water column depth, SSTs, sea surface salinities, and chlorophyll a concentration. Vertical analysis of diving behavior revealed swimming behavior primarily in the upper 20 m of the water column, in temperatures between 18°C and 20°C. Generalized additive mixed modeling suggested SSTs above 20.5°C affected dive depth. These results can help improve characterization of essential fish habitat for young white sharks and provide data to determine the species’ susceptibility to anthropogenic activities.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013440
- Subject Headings
- Carcharodon carcharias, White shark, Marine nurseries, Sharks--Ecology
- Format
- Document (PDF)
- Title
- Tolkien and Bakhtin: Chronotope, Existence, and Reality.
- Creator
- Ostaltsev, Oleksiy, Faraci, Mary, Florida Atlantic University, Department of English, Dorothy F. Schmidt College of Arts and Letters
- Abstract/Description
-
Space (topos) as one of the main categories in modem literary criticism helps to discover and study unique aspects of the narrative such as functioning of archetypes, reflection of historical reality in the text, and different types of artistic consciousness (mythological and "realistic"). This work is a first study of time and space in Tolkien's trilogy The Lord of the Rings with the help of the chronotope concept proposed by Mikhail Bakhtin. A critic and author of an original literary...
Show moreSpace (topos) as one of the main categories in modem literary criticism helps to discover and study unique aspects of the narrative such as functioning of archetypes, reflection of historical reality in the text, and different types of artistic consciousness (mythological and "realistic"). This work is a first study of time and space in Tolkien's trilogy The Lord of the Rings with the help of the chronotope concept proposed by Mikhail Bakhtin. A critic and author of an original literary concept and one of the most prominent representatives of the school of Russian formalism, Mikhail Bakhtin was also a contemporary of J. R. R. Tolkien who can be ranked among the most significant experimenters in the field of modem literature. Using Bakhtin's classification of spatio-temporal relations in the novel, I was able to identify a type of chronotope in Tolkien's major narrative as one close to mythological and epical chronotopes. In terms of this postulate, I explored methods Tolkien used to create unique time and space of fantasy to make this experimental literary genre widely popular since the middle of the twentieth century onward.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013460
- Subject Headings
- Tolkien, J. R. R. (John Ronald Reuel), 1892-1973--Criticism and interpretation, Bakhtin, M M (Mikhail Mikhaĭlovich), 1895-1975--Criticism and interpretation, Literary criticism
- Format
- Document (PDF)
- Title
- TOWARDS A SECURITY REFERENCE ARCHITECTURE FOR NETWORK FUNCTION VIRTUALIZATION.
- Creator
- Alnaim, Abdulrahman K., Fernandez, Eduardo B., Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
-
Network Function Virtualization (NFV) is an emerging technology that transforms legacy hardware-based network infrastructure into software-based virtualized networks. Instead of using dedicated hardware and network equipment, NFV relies on cloud and virtualization technologies to deliver network services to its users. These virtualized network services are considered better solutions than hardware-based network functions because their resources can be dynamically increased upon the consumer’s...
Show moreNetwork Function Virtualization (NFV) is an emerging technology that transforms legacy hardware-based network infrastructure into software-based virtualized networks. Instead of using dedicated hardware and network equipment, NFV relies on cloud and virtualization technologies to deliver network services to its users. These virtualized network services are considered better solutions than hardware-based network functions because their resources can be dynamically increased upon the consumer’s request. While their usefulness can’t be denied, they also have some security implications. In complex systems like NFV, the threats can come from a variety of domains due to it containing both the hardware and the virtualize entities in its infrastructure. Also, since it relies on software, the network service in NFV can be manipulated by external entities like third-party providers or consumers. This leads the NFV to have a larger attack surface than the traditional network infrastructure. In addition to its own threats, NFV also inherits security threats from its underlying cloud infrastructure. Therefore, to design a secure NFV system and utilize its full potential, we must have a good understanding of its underlying architecture and its possible security threats. Up until now, only imprecise models of this architecture existed. We try to improve this situation by using architectural modeling to describe and analyze the threats to NFV. Architectural modeling using Patterns and Reference Architectures (RAs) applies abstraction, which helps to reduce the complexity of NFV systems by defining their components at their highest level. The literature lacks attempts to implement this approach to analyze NFV threats. We started by enumerating the possible threats that may jeopardize the NFV system. Then, we performed an analysis of the threats to identify the possible misuses that could be performed from them. These threats are realized in the form of misuse patterns that show how an attack is performed from the point of view of attackers. Some of the most important threats are privilege escalation, virtual machine escape, and distributed denial-of-service. We used a reference architecture of NFV to determine where to add security mechanisms in order to mitigate the identified threats. This produces our ultimate goal, which is building a security reference architecture for NFV.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013435
- Subject Headings
- Computer network architectures--Safety measures, Virtual computer systems, Computer networks, Modeling, Computer
- Format
- Document (PDF)
- Title
- THE POLITICAL ECOLOGY OF SOUTH FLORIDA: INDIGENOUS RIGHTS AND THE EVERGLADES.
- Creator
- Amorino, Stephen, Kirsch, Max, Florida Atlantic University, Department of Anthropology, Dorothy F. Schmidt College of Arts and Letters
- Abstract/Description
-
The Miccosukee Tribe of South Florida is a federally recognized Indian tribe who reside on a reservation that lies within the Florida Everglades. As such, like many Indian tribes, their modern political history is entangled with the history of the creation of nearby national parks that were previously their traditional hunting territories. Since the beginning of the era of Everglades restoration and the rise in public policy designed to save the “River of Grass” from pollution, encroaching...
Show moreThe Miccosukee Tribe of South Florida is a federally recognized Indian tribe who reside on a reservation that lies within the Florida Everglades. As such, like many Indian tribes, their modern political history is entangled with the history of the creation of nearby national parks that were previously their traditional hunting territories. Since the beginning of the era of Everglades restoration and the rise in public policy designed to save the “River of Grass” from pollution, encroaching development, and eventual extinction, the Miccosukee have been on the front lines of trying to preserve the area they call home. While the Everglades means many different things to many different people, the Everglades to the Miccosukee Indians are the site and stakes of indigenous sovereignty. I argue that the issue of Everglades preservation is not just a matter of environmental conservation, but also a matter of fundamental human rights. Theoretically, I situate the debate surrounding the Florida Everglades within several theoretical paradigms, including the rights of indigenous peoples, the anthropology of development, and political ecology. I use anthropological research methods such as in-depth interviews with tribal officials and local environmental agencies to gain a complete picture of the current political landscape of the Everglades.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013443
- Subject Headings
- Miccosukee Tribe of Indians of Florida, Everglades (Fla. ), Indigenous rights, Indigenous peoples--Civil rights
- Format
- Document (PDF)
- Title
- THROUGH THE LENS OF RESILIENCE THEORY: IS LEVEL OF FUNCTIONING ACROSS BEHAVIORAL, SOCIAL, AND/OR ACADEMIC DOMAINS ASSOCIATED WITH LONG-TERM FOSTER CARE?.
- Creator
- McClellan, Joy, Thompson, Heather, Florida Atlantic University, School of Social Work, College of Social Work and Criminal Justice
- Abstract/Description
-
The purpose of this study was to analyze potential relationships between the domains of behavioral outcomes, social skills, and academic performance for youth in foster care and remaining longer in care. This study utilized data from three waves in the NSCAW II dataset, including youth (N =296) between the ages of 11 and 17 years. Multiple linear regression was utilized to assess the association between the three domains and the number of days spent in foster care. Findings were not...
Show moreThe purpose of this study was to analyze potential relationships between the domains of behavioral outcomes, social skills, and academic performance for youth in foster care and remaining longer in care. This study utilized data from three waves in the NSCAW II dataset, including youth (N =296) between the ages of 11 and 17 years. Multiple linear regression was utilized to assess the association between the three domains and the number of days spent in foster care. Findings were not significant, exposing the need for more studies on contextual variables that might be consistent with children living in out of home care. Limitations of the study were reviewed. Potential research and practice implications of the results were considered.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013483
- Subject Headings
- Foster home care, Youth, Academic achievement, Social skills, Behavior
- Format
- Document (PDF)
- Title
- The Contribution of Bilingualism to Cognitive Functioning and Biological Markers in the Progression of Normal and Abnormal Aging.
- Creator
- Torres Solano, Valeria Lucia, Rosselli, Monica, Florida Atlantic University, Department of Psychology, Charles E. Schmidt College of Science
- Abstract/Description
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Controversy surrounds the idea that bilingualism leads to enhanced executive function (EF) and brain volume changes, potentially leading to delays in cognitive decline and dementia onset. The purpose of this research was to explore these claims in a sample of elderly monolinguals and bilinguals. This study explored gray matter volume (GMV) in 214 monolinguals and bilinguals (Mage = 71.21, SD = 7.53) who were cognitively normal (CN) or diagnosed with Mild Cognitive Impairment (MCI) or dementia...
Show moreControversy surrounds the idea that bilingualism leads to enhanced executive function (EF) and brain volume changes, potentially leading to delays in cognitive decline and dementia onset. The purpose of this research was to explore these claims in a sample of elderly monolinguals and bilinguals. This study explored gray matter volume (GMV) in 214 monolinguals and bilinguals (Mage = 71.21, SD = 7.53) who were cognitively normal (CN) or diagnosed with Mild Cognitive Impairment (MCI) or dementia. Neuropsychological performance was also examined between CN and MCI monolinguals and bilinguals (N = 153) across two visits. Scores from the Digit Span Backwards, Stroop interference, Trail Making Test A minus Trail Making Test B, and category fluency average scores were used. Magnetic Resonance Imaging (MRI) brain regions associated with memory, language, and EF were selected. Additionally, the study examined how a Bilingualism Index (BI) and the age of acquisition of English could predict GMV and EF in Spanish/English bilinguals whose native language was Spanish. Lastly, the initial age of cognitive decline across language groups was compared. Results suggested higher GMV in language and EF regions in bilinguals, but differences were not found in memory regions. Furthermore, neuropsychological performance over time did not vary across language groups; however, bilinguals exhibited reduced Stroop interference as well as lower scores on Digit Span Backwards and category fluency. The age of acquisition of English did not predict GMV or EF scores, while the BI predicted category fluency, with lower scores associated with a higher degree of balanced bilingualism. Overall, the influence of bilingualism appears to be reflected in increased GMV in specific language and EF regions relative to neuropsychological performance.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013497
- Subject Headings
- Bilingualism, Cognition, Aging, Gray Matter, Neuropsychological Tests, Executive Function
- Format
- Document (PDF)
- Title
- A Hawkish Dove? Robert S. McNamara in the Cuban Missile Crisis and the Vietnam War, 1962-1968.
- Creator
- Giraldo, Maria Camila, Shannon, Kelly, Florida Atlantic University, Department of History, Dorothy F. Schmidt College of Arts and Letters
- Abstract/Description
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Robert S. McNamara served as U.S. Secretary of Defense (SOD) for Presidents John Kennedy and Lyndon Johnson. McNamara participated in the Cuban Missile Crisis negotiations in 1961 and became a key formulator of Vietnam policy. This thesis challenges scholarship that characterizes McNamara as a fierce hawk who relentlessly executed military escalation in Vietnam. By drawing parallels between McNamara’s role in the Cuban Missile Crisis and the Vietnam War, and by exploring how McNamara’s...
Show moreRobert S. McNamara served as U.S. Secretary of Defense (SOD) for Presidents John Kennedy and Lyndon Johnson. McNamara participated in the Cuban Missile Crisis negotiations in 1961 and became a key formulator of Vietnam policy. This thesis challenges scholarship that characterizes McNamara as a fierce hawk who relentlessly executed military escalation in Vietnam. By drawing parallels between McNamara’s role in the Cuban Missile Crisis and the Vietnam War, and by exploring how McNamara’s concept of loyalty to the presidency influenced his decisions, this thesis argues that the SOD was willing to escalate the situation militarily as a form of political communication with the adversary. To McNamara, military pressure was a means to create avenues for diplomacy. McNamara became increasingly uncomfortable – and ultimately resigned in 1968 - when the Johnson administration pursued military escalation without an organized campaign towards negotiations. He was therefore not as hawkish as other scholars have claimed.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013551
- Subject Headings
- McNamara, Robert S, 1916-2009, Cuban Missile Crisis, 1962, Vietnam War, 1961-1975
- Format
- Document (PDF)
- Title
- A PRINCIPAL’S PERSPECTIVE: INSTRUCTIONAL LEADERSHIP IN THE 21ST CENTURY.
- Creator
- Tracy, Maria Calzadilla, Shockley, Robert, Florida Atlantic University, Department of Educational Leadership and Research Methodology, College of Education
- Abstract/Description
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Ever since No Child Left Behind in 2001 to the present, school accountability reform initiatives have concentrated on raising achievement. Critical to figuring out the relationship between instructional practice and student achievement is forming an awareness of the relationship from the perspective of school leaders—both principals and teachers—charged with improving student achievement. The study, a quantitative quasiexperimental design using the School Survey of Practices Associated with...
Show moreEver since No Child Left Behind in 2001 to the present, school accountability reform initiatives have concentrated on raising achievement. Critical to figuring out the relationship between instructional practice and student achievement is forming an awareness of the relationship from the perspective of school leaders—both principals and teachers—charged with improving student achievement. The study, a quantitative quasiexperimental design using the School Survey of Practices Associated with High Performance, representing instructional practices associated with improving student performance, collected survey data via social media from teachers, principals and other school leaders in Florida public schools. The SSPAHP grouped instructional practices into five domains: effective leadership, curriculum, professional development, school culture, and ongoing use of data for school improvement, which served as the predictor variables. Achievement data from the Florida Standards Assessment for the schools mentioned by participants in the survey functioned as the criterion variable. While 130 surveys were collected, only 84 of the responses reflected schools that took part in the FSA and met the criteria for data analysis.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013532
- Subject Headings
- Student achievement, Academic achievement, Instruction, Principals and teachers, Educational leadership
- Format
- Document (PDF)
- Title
- A COMPARISON OF TASK RELEVANT NODE IDENTIFICATION TECHNIQUES AND THEIR IMPACT ON NETWORK INFERENCES: GROUP-AGGREGATED, SUBJECT-SPECIFIC, AND VOXEL WISE APPROACHES.
- Creator
- Falco, Dimitri, Bressler, Steven L., Florida Atlantic University, Center for Complex Systems and Brain Sciences, Charles E. Schmidt College of Science
- Abstract/Description
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The dissertation discusses various node identification techniques as well as their downstream effects on network characteristics using task-activated fMRI data from two working memory paradigms: a verbal n-back task and a visual n-back task. The three node identification techniques examined within this work include: a group-aggregated approach, a subject-specific approach, and a voxel wise approach. The first chapters highlight crucial differences between group-aggregated and subject-specific...
Show moreThe dissertation discusses various node identification techniques as well as their downstream effects on network characteristics using task-activated fMRI data from two working memory paradigms: a verbal n-back task and a visual n-back task. The three node identification techniques examined within this work include: a group-aggregated approach, a subject-specific approach, and a voxel wise approach. The first chapters highlight crucial differences between group-aggregated and subject-specific methods of isolating nodes prior to undirected functional connectivity analysis. Results show that the two techniques yield significantly different network interactions and local network characteristics, despite having their network nodes restricted to the same anatomical regions. Prior to the introduction of the third technique, a chapter is dedicated to explaining the differences between a priori approaches (like the previously introduced group-aggregated and subject-specific techniques) and no a priori approaches (like the voxel wise approach). The chapter also discusses two ways to aggregate signal for node representation within a network: using the signal from a single voxel or aggregating signal across a group of neighboring voxels. Subsequently, a chapter is dedicated to introducing a novel processing pipeline which uses a data driven voxel wise approach to identify network nodes. The novel pipeline defines nodes using spatial temporal features generated by a deep learning algorithm and is validated by an analysis showing that the isolated nodes are condition and subject specific. The dissertation concludes by summarizing the main takeaways from each of the three analyses as well as highlighting the advantages and disadvantages of each of the three node identification techniques.
Show less - Date Issued
- 2020
- PURL
- http://purl.flvc.org/fau/fd/FA00013553
- Subject Headings
- Functional magnetic resonance imaging, Brain mapping, Working memory, Neural networks (Neurobiology), Neuroimaging--methods
- Format
- Document (PDF)
