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- Title
- TESTING RELATIONSHIPS AMONG THE GUT MICROBIOME, FITNESS, AND BEHAVIOR IN SONGBIRDS.
- Creator
- Slevin, Morgan C., Anderson, Rindy C., Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
- Abstract/Description
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Emerging research in mammals supports relationships between an animal’s health, including the stress response and cognition, and its gut microbiome. Most of what is known about this “microbiota-gut-brain-HPA axis” stems from captive mammalian research, while these relationships are largely untested in wild, non-mammalian populations. To test this in avian taxa, I conducted a series of studies with captive Zebra Finches (Taeniopygia guttata) and a wild population of Northern Cardinals ...
Show moreEmerging research in mammals supports relationships between an animal’s health, including the stress response and cognition, and its gut microbiome. Most of what is known about this “microbiota-gut-brain-HPA axis” stems from captive mammalian research, while these relationships are largely untested in wild, non-mammalian populations. To test this in avian taxa, I conducted a series of studies with captive Zebra Finches (Taeniopygia guttata) and a wild population of Northern Cardinals (Cardinalis cardinalis). First, I quantified performance by Zebra Finches on cognitive tasks measuring learning and memory for comparison to alpha and beta diversity of the gut microbiome sampled via cloacal swab. Performance on cognitive tasks related to beta diversity but not alpha diversity, providing some of the first evidence of an avian microbiota-gut-brain axis. Next, testing for relationships between host fitness and the microbiome, I sought baseline relationships between free-living cardinals’ microbiomes and their sexual ornamentation, stress response, and body condition index. Bacterial diversity related to individual variation in body condition and several sexual ornaments, but not glucocorticoid concentrations. Finally, in an empirical test that an acute stress response can cause microbiome dysbiosis, I captured wild cardinals to sample their gut microbiome, stress response, body condition, and beak ornamentation, then recaptured and resampled individuals after ~11 days. Between captures, I administered one of two challenges to each cardinal: a temporary hold of an additional hour in a cage post-capture, repeated simulated territorial intrusions (STIs), or no challenge (as a control). Challenge type had no effect on change in alpha diversity between sample timepoints, but it had a significant impact on microbiome dissimilarity assessed by beta diversity between timepoints. Overall, the birds that showed the largest beta diversity and greatest decrease in alpha diversity between samples experienced the greatest increase in CORT scope; there were mixed results supporting a link between a reduction in beak ornamentation and microbiome dysbiosis. This is some of the first evidence of a proximate effect of a fitness challenge on the microbiome of an adult free-living songbird, with concurrent data on shifts in glucocorticoids, body condition, and ornamentation.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014524
- Subject Headings
- Zebra finch, Gastrointestinal Microbiome, Northern cardinal
- Format
- Document (PDF)
- Title
- THE ANISOTROPIC MECHANICAL PROPERTIES AND MORPHOLOGY OF ELASMOBRANCH SKIN.
- Creator
- Hagood, Madeleine Elizabeth, Porter, Marianne E., Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
- Abstract/Description
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The goal of these studies was to quantify mechanical properties of elasmobranch (sharks and batoids) skin to understand the functional relationships between mechanics and morphology, and how these correspond to differences in swimming and ecology. I relate mechanical behaviors with morphological structures to elucidate the underlying contributions of the skin toward elasmobranch skin mechanics. I mechanically tested skin in uniaxial tension to failure to assess the tensile strain at maximum...
Show moreThe goal of these studies was to quantify mechanical properties of elasmobranch (sharks and batoids) skin to understand the functional relationships between mechanics and morphology, and how these correspond to differences in swimming and ecology. I relate mechanical behaviors with morphological structures to elucidate the underlying contributions of the skin toward elasmobranch skin mechanics. I mechanically tested skin in uniaxial tension to failure to assess the tensile strain at maximum load (extensibility), ultimate tensile strength, Young’s Modulus of elasticity (stiffness), and toughness among diverse groups of elasmobranchs. Across three chapters, I compare mechanical behaviors of the skin among species of sharks and batoids (separately) among body regions, and between sexes and axes of stress (longitudinal and hoop). Among 20 shark species, I quantified mechanical properties among ecomorphotypes and ontogenetically (across three maturity stages) and found that mechanical behaviors increase ontogenetically and are governed by two different underlying trends (maturity and ecomorphology). I found that shark skin oriented in the hoop direction was stronger and stiffer compared to skin oriented longitudinally, as hoop-oriented skin maintains internal volume and hydrostatic pressure by resisting deformation. Shark skin oriented longitudinally was more extensible, allowing for increased stretchability anteroposterior as a shark’s body undulates along the longitudinal axis. Dermal denticles (placoid scales), tooth-like structures of enameloid and dentine, are rooted in the stratum compactum layer of the dermis, embedded in a collagen fiber network.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014525
- Subject Headings
- Cartilaginous fishes, Fish skin, Morphology, Anisotropy
- Format
- Document (PDF)
- Title
- POLITICAL REFORMS AND WOMEN’S RIGHTS IN THE KINGDOM OF SAUDI ARABIA.
- Creator
- Abuhasabo, Sama Khalil, Rabil, Robert, Florida Atlantic University, Department of Political Science, Dorothy F. Schmidt College of Arts and Letters
- Abstract/Description
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The Arabian Peninsula was under the influence of the Ottoman Empire from 1517 until its collapse in 1918. During this time, three attempts were made to establish a Saudi state, the last of which began in 1902 and ended with the unification of the third Saudi State in 1932. During this period, three Saudi States were formed. The first Saudi State was established in 1745 when the al-Diriyah Agreement was introduced. This landmark agreement was achieved when Imam Mohammed Ibn Saud formed an...
Show moreThe Arabian Peninsula was under the influence of the Ottoman Empire from 1517 until its collapse in 1918. During this time, three attempts were made to establish a Saudi state, the last of which began in 1902 and ended with the unification of the third Saudi State in 1932. During this period, three Saudi States were formed. The first Saudi State was established in 1745 when the al-Diriyah Agreement was introduced. This landmark agreement was achieved when Imam Mohammed Ibn Saud formed an alliance with Sheikh Mohammed Ibn Abdul Wahhab, a religious and rebellious man who advocated for the pure interpretation of Islamic principles. This alliance enabled Ibn Saud to govern the state, but he left the religious and cultural aspects of the society under the authority of Ibn Abdul Wahhab. As a result, throughout centuries, the religious establishment has greatly influenced the affairs of all three Saudi States. However, following the seizure of the Grand Mosque by religious zealots in 1979, Saudi Arabia underwent changes that radicalized the religious establishment, causing myriad detrimental effects for Saudi women. Oppressed by the weight of unfair laws and obstacles, Saudi women challenged the status quo and fought for equal rights through various methods. While King Abdullah al-Saud introduced some reforms, more significant change was still to come. After King Abdullah’s death, King Salman and his son Mohammed Bin Salman—the Crown Prince and Prime Minster—initiated a series of sweeping reforms under the Vision 2030 initiative to empower women, diversify the economy, and modernize the Kingdom of Saudi. Some key aspects of these reforms were abolishing the Male Guardianship System and removing the ban on women’s driving.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014553
- Subject Headings
- Saudi Arabia, Arabian Peninsula, Women, Political science
- Format
- Document (PDF)
- Title
- Potential Provenance Identification of Unidentified Human Remains Using Strontium and Oxygen Isotope Analysis.
- Creator
- Colonna, Hallie, Ellis, Meredith A. B., Florida Atlantic University, Department of Anthropology, Dorothy F. Schmidt College of Arts and Letters
- Abstract/Description
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Major academic institutions in the United States house unidentified human skeletal remains in their collections as a result of unethical obtainment, poor documentation, and lack of resources. This thesis explores the possible geographic provenances associated with two skulls, A11 and A12, kept in the Florida Atlantic University (FAU) Anthropology Department. This thesis utilizes strontium and oxygen isotope analysis collected from dental and enamel tissues to explore possible geographic...
Show moreMajor academic institutions in the United States house unidentified human skeletal remains in their collections as a result of unethical obtainment, poor documentation, and lack of resources. This thesis explores the possible geographic provenances associated with two skulls, A11 and A12, kept in the Florida Atlantic University (FAU) Anthropology Department. This thesis utilizes strontium and oxygen isotope analysis collected from dental and enamel tissues to explore possible geographic provenance for A11 and A12. Analyzing isotopic composition of human skeletal remains is an established method to reconstruct human processes, history, events, and lifeways. Strontium (expressed by the ratio: 87Sr/86Sr) and oxygen (expressed by the ratio: δ18O) stable isotope analysis is used to determine place of origin for human remains with unknown origin. Strontium and oxygen isotopes express geographic signatures, of an individual's food and drinking water ingested during childhood which can reflect the isotope signature of the environment (soil, water, geology) from where it originates.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014508
- Subject Headings
- Human remains (Archaeology), Bioarchaeology, Oxygen--Isotopes--Analysis, trontium--Isotopes
- Format
- Document (PDF)
- Title
- AI/ML WAVEFORM DESIGNS FOR AUTONOMOUS OPTIMAL INTERFERENCE-AVOIDANCE IN ARBITRARY FIXED FREQUENCY BANDS.
- Creator
- Naderi, Sanaz, Pados, Dimitris, Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
-
The aim of this dissertation is to develop a comprehensive framework for designing optimal AI/ML-driven waveform solutions to achieve autonomous interference avoidance in fixed frequency bands. In the age of advanced wireless communications, minimizing interference is critical for maximizing the signal-to-interference-plus-noise ratio (SINR), particularly in densely occupied frequency environments. The research presented here focuses on developing adaptive MIMO waveform optimization...
Show moreThe aim of this dissertation is to develop a comprehensive framework for designing optimal AI/ML-driven waveform solutions to achieve autonomous interference avoidance in fixed frequency bands. In the age of advanced wireless communications, minimizing interference is critical for maximizing the signal-to-interference-plus-noise ratio (SINR), particularly in densely occupied frequency environments. The research presented here focuses on developing adaptive MIMO waveform optimization techniques that dynamically adjust to varying interference conditions, enhancing communication reliability and performance for future autonomous machine-to-machine (M2M) networks. In addition to the established adaptive MIMO waveform optimization techniques, this dissertation investigates the implementation of AI-enhanced methods, to improve real-time adaptability in interference-rich environments. By leveraging neural networks, the framework enables the MIMO system to autonomously learn optimal waveform adjustments, providing resilience and efficiency under unpredictable interference conditions. This approach is validated through extensive simulations and experimental setups, demonstrating significant gains in SINR and overall communication reliability, marking a robust advancement toward achieving fully autonomous interference-avoiding communication in 6G and beyond networks. The AI-driven techniques further enhance the adaptability of the MIMO system across diverse interference scenarios, contributing to more consistent performance. These improvements offer a scalable approach for interference avoidance, adaptable to various network configurations.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014559
- Subject Headings
- Artificial intelligence, Electrical engineering, Multiple input-multiple output systems, MIMO systems
- Format
- Document (PDF)
- Title
- A MOLECULAR AND MORPHOLOGICAL ASSESSMENT OF OCTOPUS VULGARIS.
- Creator
- Hecker, Colleen Nicole, Brooks, William, Bennice, Chelsea, Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
- Abstract/Description
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Cryptic species remain poorly studied in octopuses. Following the reinstatement of the cryptic species, Octopus americanus, suggestions that it should supplant two taxa, Octopus vulgaris types I & II, in the western central and southwestern Atlantic Ocean, respectively, had yet been investigated in southeast Florida. To delineate this species, an integrative approach including morphological assessments and phylogenetic analyses of mitochondrial (16S & COI) and nuclear (rhodopsin) genes was...
Show moreCryptic species remain poorly studied in octopuses. Following the reinstatement of the cryptic species, Octopus americanus, suggestions that it should supplant two taxa, Octopus vulgaris types I & II, in the western central and southwestern Atlantic Ocean, respectively, had yet been investigated in southeast Florida. To delineate this species, an integrative approach including morphological assessments and phylogenetic analyses of mitochondrial (16S & COI) and nuclear (rhodopsin) genes was employed. The utility of swabbing as a minimally invasive alternative DNA sampling method to tissue was also investigated. This taxon displays similar morphological traits to O. americanus. Maximum Likelihood phylogenetic inference placed this taxon in a highly supported monophyletic group with O. americanus. Both sampling methods delineated this taxon, though tissue was more successful. These results indicate that southeast Florida’s O. vulgaris-like species represents O. americanus. Thorough species delineation approaches advance our understanding of biodiversity, evolution, and ecology, and inform management practices.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014515
- Subject Headings
- Common octopus, Octopus vulgaris, Morphology, Molecular biology
- Format
- Document (PDF)
- Title
- A NEW MIXED TRAFFIC SCENARIO: INTERACTION OF INTERNAL COMBUSTION VEHICLES AND ELECTRIC VEHICLES. A CASE STUDY FOR ADAPTIVE CRUISECONTROL (ACC) ON FREEWAY BOTTLENECK CAPACITY.
- Creator
- Abdullah, Sheikh Muhammad Habib, Kan, David, Florida Atlantic University, Department of Civil, Environmental and Geomatics Engineering, College of Engineering and Computer Science
- Abstract/Description
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Fully electric vehicles (EVs) have gained significant popularity and countries such as Norway are leading the world with over 90% EV market share in new car sales. However, older internal combustion engine (ICE) powered vehicles currently on today’s roads are expected to continue to operate until the end of their life cycle. As a result, a mixed vehicle fleet is expected to persist in the coming decade. Unfortunately, there has been an underlying assumption that the traditional internal...
Show moreFully electric vehicles (EVs) have gained significant popularity and countries such as Norway are leading the world with over 90% EV market share in new car sales. However, older internal combustion engine (ICE) powered vehicles currently on today’s roads are expected to continue to operate until the end of their life cycle. As a result, a mixed vehicle fleet is expected to persist in the coming decade. Unfortunately, there has been an underlying assumption that the traditional internal combustion vehicles are expected to exhibit the same driving behavior when electrified vehicles are introduced in the mixed traffic fleet. Unlike ICE powered vehicles, EVs deliver immediate and strong deceleration via regenerative braking, and this could cause disturbances when the less capable ICE vehicles are following. These differences in driving dynamics may translate to substantial impacts to roadway capacity, especially when mixed with human driven ICE powered vehicles. Although ACC equipped EVs can adopt shorter headways and react quickly to speed changes, potentially improving roadway capacity, our empirically validated simulation study on ACC with ICE and electric powertrain suggestion that the increase in market penetration of EVs could result in greater capacity but mostly at higher EV market penetrations, because EVs mostly interact with other EVs and there would not be many ICE vehicles following EVs undergoing rapid regenerative braking. Conversely, at low market penetrations, there are numerous ICE vehicles interacting with a few EVs that undergo rapid deceleration, causing disturbances and negating the potential capacity benefit of EVs.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014513
- Subject Headings
- Automobile driving on highways, Electric vehicles, Internal combustion engine vehicles
- Format
- Document (PDF)
- Title
- A Constant Dance: A Social Practice Perspective of Frontline Responsible Management.
- Creator
- Coker, Jason K., Bogotch, Ira, Florida Atlantic University, Department of Educational Leadership and Research Methodology, College of Education
- Abstract/Description
-
There is a growing interest and attention for organizations to move from a shareholder capitalist to stakeholder capitalist business model, in which delivering environmental, social, and governance (ESG) performance is becoming more pronounced. Because of this transition, there is growing pressure for managers at all levels to act in sustainable, socially responsible, and ethical (SRE) ways; yet the current management models are based on maximizing economic value and scientific management....
Show moreThere is a growing interest and attention for organizations to move from a shareholder capitalist to stakeholder capitalist business model, in which delivering environmental, social, and governance (ESG) performance is becoming more pronounced. Because of this transition, there is growing pressure for managers at all levels to act in sustainable, socially responsible, and ethical (SRE) ways; yet the current management models are based on maximizing economic value and scientific management. Therefore, the attempts to try and manage 21st century organizations with 20th century management practices and the aspirations of responsible management education have not demonstrated the desired effect (Laasch & Gherardi, 2019), as seen by continued business failures. It is not yet understood whether it is possible for the everyday manager to effectively navigate the tensions and contradictions of trying to deliver economic value to shareholders, social and ecological value to other stakeholders, while simultaneously attending to regulatory policies and, in the process, avoiding burnout for overtasked managers. Conducted in a debt remediation call center in the Dominican Republic, this study used an eclectic design integrating abductive analysis with a cultural-historical activity theory methodology to explore responsible management practices at the lowest levels of management. The findings describe responsible managers as pressure moderators enacting four primary elements: 1) embracing a pluralistic logic of responsibility, 2) accepting tensions with resilience, 3) engaging practices dynamically to moderate pressures, and 4) learning primarily on the job amid real work. In this organization, moderating the pressures of emotional labor was the primary object of their attention.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014500
- Subject Headings
- Management, Organizational sociology, Organization theory
- Format
- Document (PDF)
- Title
- AN ADAPTIVE DEEP LEARNING FRAMEWORK TO ENHANCE THE PERFORMANCE OF MONITORING SYSTEMS FOR BIOMEDICAL APPLICATIONS.
- Creator
- Shuqair, Mustafa, Ghoraani, Behnaz, Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
-
Deep learning strategies combined with wearable sensors have advanced the capabilities of monitoring systems in biomedical applications, offering precise and efficient solutions for diagnosing and managing diseases. However, applying these systems faces several challenges. One of the challenges is the diminishing performance when these systems encounter new data with more complex patterns than those seen before. Another challenge is the limited availability of labeled data, on which deep...
Show moreDeep learning strategies combined with wearable sensors have advanced the capabilities of monitoring systems in biomedical applications, offering precise and efficient solutions for diagnosing and managing diseases. However, applying these systems faces several challenges. One of the challenges is the diminishing performance when these systems encounter new data with more complex patterns than those seen before. Another challenge is the limited availability of labeled data, on which deep learning-based systems depend highly. Additionally, obtaining high-quality labeled data to train deep learning models is often expensive, requiring significant time and resources. Another significant challenge is ensuring the practicality, accessibility, and convenience of the monitoring systems. This dissertation proposes an innovative deep learning framework to overcome these challenges and improve system generalization performance in classification and regression tasks, specifically monitoring patients with neurological disorders like Parkinson’s.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014542
- Subject Headings
- Deep learning (Machine learning), Monitoring systems, Biomedical engineering
- Format
- Document (PDF)
- Title
- CLIMATE AND EQUITY: WOMEN FACULTY IN SCIENCE, TECHNOLOGY, ENGINEERING AND MATHEMATICS AT A RESEARCH UNIVERSITY WITH THE NATIONAL SCIENCE FOUNDATION’S ADVANCE GRANT.
- Creator
- Mahabir, Deorajhee, Maslin-Ostrowski, Patricia, Florida Atlantic University, Department of Educational Leadership and Research Methodology, College of Education
- Abstract/Description
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There is increasing reliance on STEM higher education as a source of innovation, and on faculty as knowledge producers. Simultaneously, universities are systemically changing internal structures to increase equity and inclusivity to attract and retain more STEM women. Women remain underrepresented in specific STEM disciplines and are missing from upper faculty ranks. The research corpus on STEM women lacks studies on women on tenure tracks, and on the relationships among climate, fit, and job...
Show moreThere is increasing reliance on STEM higher education as a source of innovation, and on faculty as knowledge producers. Simultaneously, universities are systemically changing internal structures to increase equity and inclusivity to attract and retain more STEM women. Women remain underrepresented in specific STEM disciplines and are missing from upper faculty ranks. The research corpus on STEM women lacks studies on women on tenure tracks, and on the relationships among climate, fit, and job satisfaction, and the extent to which job satisfaction aids retention of STEM women. Also sparse is research on leadership’s roles in women’s advancement and retention at the departmental level. The purpose of this study was to understand how the climate within a STEM college contributed to the professional development and sense of belonging of women faculty at a research institution with a National Science Foundation (NSF) ADVANCE grant. This study also explored leadership’s role in fostering a climate of support toward women’s advancement. NSF ADVANCE funds institutions working toward systemic change, but even with an ADVANCE grant, it can be difficult to make climate changes in academic departments where women are historically underrepresented. Thus, we don’t know, a priori, what we might find in such a setting. Gendering organization theory guided this study. Two overarching questions were formulated to address the problems associated with low numbers of women in STEM departments. The methodology utilized a qualitative single instrumental case. The sampling plan included leaders, faculty, and documents; and data sources included interviews and document review.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014558
- Subject Headings
- Women in science, Women in STEM, Equity
- Format
- Document (PDF)
- Title
- COMPARATIVE STUDIES ON POPULATION GENETIC STRUCTURE OF FLORIDA’S THREATENED PINE-PINK (Bletia purpurea) ORCHID.
- Creator
- Simpson, Bethany, Baldwin, John, Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
- Abstract/Description
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Anthropogenic impacts, including urbanization and development of the Greater Everglades ecosystem, have severely reduced and fragmented populations of Bletia purpurea. Differences across populations in Florida, such as habitat preferences, blooming periods, and self-fertilization abilities have been documented. Genetic data is becoming essential for developing effective conservation strategies to prevent the disappearance of threatened orchids from the wild. Using a target capture method with...
Show moreAnthropogenic impacts, including urbanization and development of the Greater Everglades ecosystem, have severely reduced and fragmented populations of Bletia purpurea. Differences across populations in Florida, such as habitat preferences, blooming periods, and self-fertilization abilities have been documented. Genetic data is becoming essential for developing effective conservation strategies to prevent the disappearance of threatened orchids from the wild. Using a target capture method with the Orchidaceae963 baitset, we assessed the genetic diversity of eight wild populations and five cultivated sources of B. purpurea. Our findings reveal two areas of concern; S1 which forms a distinct genetic cluster, and E3, where inbreeding rates are notably high. Additionally, three of the five cultivated sources showed significant differentiation from the wild populations, highlighting the need for more diverse maternal lines in cultivation efforts. These results emphasize the critical role of genetic assessments in informing conservation strategies for threatened orchid populations.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014560
- Subject Headings
- Orchids, Orchids--Conservation, Molecular ecology
- Format
- Document (PDF)
- Title
- ENHANCING LOCATION INFORMATION PRIVACY AND SECURITY IN IOBT USING DECEPTION-BASED TECHNIQUES.
- Creator
- Alkanjr, Basmh Ibrahim, Mahgoub, Imadeldin, Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
-
IoBT stands for the Internet of Battlefield Things. This concept extends the principles of the Internet of Things (IoT) for military and defense use. IoBT integrates smart devices, sensors, and technology on the battlefield to improve situational awareness, communication, and decision-making in military operations. Sensitive military data typically includes information crucial to national security, such as the location of soldiers and equipment. Unauthorized access to location data may...
Show moreIoBT stands for the Internet of Battlefield Things. This concept extends the principles of the Internet of Things (IoT) for military and defense use. IoBT integrates smart devices, sensors, and technology on the battlefield to improve situational awareness, communication, and decision-making in military operations. Sensitive military data typically includes information crucial to national security, such as the location of soldiers and equipment. Unauthorized access to location data may compromise operational confidentiality and impede the element of surprise in military operations. Therefore, ensuring the security of location data is crucial for the success and efficiency of military operations. We propose two systems to address this issue. First, we propose a novel deception-based scheme to enhance the location-information security of IoBT nodes. The proposed scheme uses a novel encryption method, dummy IDs, and dummy packets technology. We develop a mathematical model to evaluate our scheme in terms of safety time (ST), probability of failure (PF), and the probability of identifying the real packet in each location information update (PIRP). Then, we develop NetLogo simulations to validate the mathematical model. The proposed scheme increases ST, reduces PF and PIRP.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014497
- Subject Headings
- Internet of things, Artificial intelligence, Machine learning, Deception
- Format
- Document (PDF)
- Title
- ETHNOARCHAEOLOGY OF MANTEÑO ARCHITECTURE IN RIO BLANCO ECUADOR: A PRE-COLUMBIAN HOME OF THE CLOUD FOREST.
- Creator
- Waldron, Colin Robert, Harris, Michael, Martinez, Valentina L., Florida Atlantic University, Department of Anthropology, Dorothy F. Schmidt College of Arts and Letters
- Abstract/Description
-
This thesis aims to answer questions about preconquest natives, defined by archaeologists as the Manteño culture (800-1533C.E.), in the cloud forests of Rio Blanco, Ecuador. Descriptions of the excavation units are made focusing on the architectural aspect of their dwelling. The cultural remains of the inhabitants also helped to conclude that this was a domestic house. Using an ethnoarchaeological theory base, modern home building analogies are employed to address questions about the...
Show moreThis thesis aims to answer questions about preconquest natives, defined by archaeologists as the Manteño culture (800-1533C.E.), in the cloud forests of Rio Blanco, Ecuador. Descriptions of the excavation units are made focusing on the architectural aspect of their dwelling. The cultural remains of the inhabitants also helped to conclude that this was a domestic house. Using an ethnoarchaeological theory base, modern home building analogies are employed to address questions about the archaeological process.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014552
- Subject Headings
- Ethnoarchaeology, Ecuador, Cloud forests
- Format
- Document (PDF)
- Title
- BINARY AND MULTI-CLASS INTRUSION DETECTION IN IOT USING STANDALONE AND HYBRID MACHINE AND DEEP LEARNING MODELS.
- Creator
- Akif, MD Ahnaf, Mahgoub, Imadeldin, Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
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Maintaining security in IoT systems depends on intrusion detection since these networks' sensitivity to cyber-attacks is growing. Based on the IoT23 dataset, this study explores the use of several Machine Learning (ML) and Deep Learning (DL) along with the hybrid models for binary and multi-class intrusion detection. The standalone machine and deep learning models like Random Forest (RF), Extreme Gradient Boosting (XGBoost), Artificial Neural Network (ANN), K-Nearest Neighbors (KNN), Support...
Show moreMaintaining security in IoT systems depends on intrusion detection since these networks' sensitivity to cyber-attacks is growing. Based on the IoT23 dataset, this study explores the use of several Machine Learning (ML) and Deep Learning (DL) along with the hybrid models for binary and multi-class intrusion detection. The standalone machine and deep learning models like Random Forest (RF), Extreme Gradient Boosting (XGBoost), Artificial Neural Network (ANN), K-Nearest Neighbors (KNN), Support Vector Machine (SVM), and Convolutional Neural Network (CNN) were used. Furthermore, two hybrid models were created by combining machine learning techniques: RF, XGBoost, AdaBoost, KNN, and SVM and these hybrid models were voting based hybrid classifier. Where one is for binary, and the other one is for multi-class classification. These models were tested using precision, recall, accuracy, and F1-score criteria and compared the performance of each model. This work thoroughly explains how hybrid, standalone ML and DL techniques could improve IDS (Intrusion Detection System) in terms of accuracy and scalability in IoT (Internet of Things).
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014514
- Subject Headings
- Internet of things, Machine learning, Deep learning (Machine learning), Intrusion detection systems (Computer security)
- Format
- Document (PDF)
- Title
- BLACK WOMEN IN WHITE SPACES: A NARRATIVE STUDY OF THE RACIAL SOCIALIZATION EXPERIENCES OF BLACK WOMEN COLLEGE STUDENTS ENROLLED AT PREDOMINANTLY WHITE INSTITUTIONS.
- Creator
- Goins, Brittany, Salinas Jr., Cristobal, Florida Atlantic University, Department of Educational Leadership and Research Methodology, College of Education
- Abstract/Description
-
In this narrative study, the racial socialization experiences of six Black women college students enrolled at predominantly white institutions (PWIs) will be explored. The purpose of this study is to understand the racial socialization experiences of Black women college students and how these experiences impact how they engage in private and public spaces. The following research questions will guide this study: 1. How are Black women college students racially socialized at PWIs? 2. How do...
Show moreIn this narrative study, the racial socialization experiences of six Black women college students enrolled at predominantly white institutions (PWIs) will be explored. The purpose of this study is to understand the racial socialization experiences of Black women college students and how these experiences impact how they engage in private and public spaces. The following research questions will guide this study: 1. How are Black women college students racially socialized at PWIs? 2. How do Black women college students enrolled at PWIs engage in private and public spaces? Gaps in the literature focus on how Black women in college engage in spaces where they are the minority and how these experiences impact their overall matriculation into higher education (Porter et al., 2020). Intersectionality (Collins, 2019; Crenshaw, 1989; Porter et al., 2020) were used to guide this dissertation study of how Black women college students experience racial socialization and engage in spaces at PWIs. This study is a significant contribution to the literature as one of the few studies that seek to understand the complexity of intersecting systems of society that impact the experiences and lives of Black women at PWIs. The findings of this study showed that Black women college students experience racism and microaggressions that impact the way in which they engage private and public spaces at PWIs.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014555
- Subject Headings
- Women, Black, College students, Black, Women, Black--Race identity
- Format
- Document (PDF)
- Title
- EFFECTIVENESS OF A MAGNETIC SHARK DETERRENT.
- Creator
- Jones, Laura, Kajiura, Stephen, Florida Atlantic University, Department of Marine Science and Oceanography, Charles E. Schmidt College of Science
- Abstract/Description
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This study examined the effectiveness of a magnetic shark deterrent, the SharkBanz® Zeppelin, and quantified the magnetic field it produces. A shark entering the magnetic field induces an electric field that is detectable by electroreceptors. This novel stimulus may deter sharks away from hooked fish. The magnitude declined rapidly with distance and reached the ambient geomagnetic field at 36-39 cm away. Zeppelin devices and non-magnetic controls were deployed with baited remote underwater...
Show moreThis study examined the effectiveness of a magnetic shark deterrent, the SharkBanz® Zeppelin, and quantified the magnetic field it produces. A shark entering the magnetic field induces an electric field that is detectable by electroreceptors. This novel stimulus may deter sharks away from hooked fish. The magnitude declined rapidly with distance and reached the ambient geomagnetic field at 36-39 cm away. Zeppelin devices and non-magnetic controls were deployed with baited remote underwater video systems, and the responses of sharks were recorded. There was a significant difference between the number of sharks deterred between the Zeppelin and control. The Zeppelin deterred sharks on 22% of their approaches in the effective range, whereas the control deterred them on 2.6% of their approaches. Although the device may be effective at deterring sharks and act as a mitigation strategy for shark depredation, tests with live fish that provide more sensory stimuli are needed.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014556
- Subject Headings
- Sharks, Elasmobranchs, Magnetic fields, Electromagnetics
- Format
- Document (PDF)
- Title
- EFFECTS OF PUBLIC RESEARCH UNIVERSITY LEADERSHIP ON INSTITUTIONAL FUNDRAISING PERFORMANCE AND THE MODERATING ROLE OF MANAGERIAL POWER AND TRANSFORMATIONAL LEADERSHIP BEHAVIORS.
- Creator
- DeHaney, Danita R., Neubaum,Donald O., Florida Atlantic University, Department of Management Programs, College of Business
- Abstract/Description
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This dissertation investigated the influence of university presidents and business school deans on fundraising performance at public research universities. Drawing on strategic choice theory, upper echelons theory, and transformational leadership theory, this research suggests that managerial power and transformational leadership behaviors moderate the relationship between an institution’s fundraising strategy and its performance. To test these hypotheses, data on strategic choice, managerial...
Show moreThis dissertation investigated the influence of university presidents and business school deans on fundraising performance at public research universities. Drawing on strategic choice theory, upper echelons theory, and transformational leadership theory, this research suggests that managerial power and transformational leadership behaviors moderate the relationship between an institution’s fundraising strategy and its performance. To test these hypotheses, data on strategic choice, managerial power, leadership behaviors, and leader demographics were collected from 79 U.S. public research universities for fiscal years 2017–2021. Panel regression, specifically random-effects generalized least squares regression models, tested the hypotheses. The study found that university presidents and business school deans who exhibited transformational leadership behaviors, had higher fundraising outcomes. Furthermore, the study identified a significant positive effect of a dean’s prior work experience at prestigious institutions on a business school’s fundraising performance. This implies that deans hailing from elite institutions might possess qualities or networks that significantly enhance fundraising outcomes.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014522
- Subject Headings
- Educational leadership, Fund raising, College presidents, Deans (Education)
- Format
- Document (PDF)
- Title
- ARIAL PHOTOGRAMMETRY AND LIDAR POINT CLOUD REGISTRATION USING DEEP LEARNING.
- Creator
- Mandal, Anil Kumar, Yong, Yan, Su, Hongbo, Florida Atlantic University, Department of Civil, Environmental and Geomatics Engineering, College of Engineering and Computer Science
- Abstract/Description
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This research develops a new pipeline for large-scale point cloud registration by integrating chunked-based data processing within feature-based deep learning models to align aerial LiDAR and UAV photogrammetric data. By processing data in manageable chunks, this approach optimizes memory usage while retaining the spatial continuity essential for precise alignment across expansive datasets. Three models—DeepGMR, FMR, and PointNetLK—were evaluated within this framework, demonstrating the...
Show moreThis research develops a new pipeline for large-scale point cloud registration by integrating chunked-based data processing within feature-based deep learning models to align aerial LiDAR and UAV photogrammetric data. By processing data in manageable chunks, this approach optimizes memory usage while retaining the spatial continuity essential for precise alignment across expansive datasets. Three models—DeepGMR, FMR, and PointNetLK—were evaluated within this framework, demonstrating the pipeline’s robustness in handling datasets with up to 49.73 million points. The models achieved average epoch times of 35 seconds for DeepGMR, 112 seconds for FMR, and 333 seconds for PointNetLK. Accuracy in alignment was also reliable, with rotation errors averaging 2.955, 1.966, and 1.918 degrees, and translation errors at 0.174, 0.191, and 0.175 meters, respectively. This scalable, high-performance pipeline offers a practical solution for spatial data processing, making it suitable for applications that require precise alignment in large, cross-source datasets, such as mapping, urban planning, and environmental analysis.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014538
- Subject Headings
- Deep learning (Machine learning), Photogrammetry, Three-dimensional modeling
- Format
- Document (PDF)
- Title
- Amyloid Beta Clearance in Alzheimer’s Disease: A PET Imaging and Data Science Study.
- Creator
- Hall, Rudolf, Tao, Rui, Florida Atlantic University, Department of Biomedical Science, Charles E. Schmidt College of Medicine
- Abstract/Description
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Amyloid beta (Aβ), a byproduct of amyloid precursor protein, is constantly cleared from the CNS. Aβ kinetics are visualized using 18F-florbetapir PET imaging, typically analyzed through 2D coregistration with MRI or CT followed by visual evaluation. Aβ was thought to coexist in the white matter of both Alzheimer’s disease (AD; Aβ+) patients and cognitively unimpaired (CU; Aβ-) individuals. However, this coexistence is likely a misperception of 2D imaging. In this study, data science...
Show moreAmyloid beta (Aβ), a byproduct of amyloid precursor protein, is constantly cleared from the CNS. Aβ kinetics are visualized using 18F-florbetapir PET imaging, typically analyzed through 2D coregistration with MRI or CT followed by visual evaluation. Aβ was thought to coexist in the white matter of both Alzheimer’s disease (AD; Aβ+) patients and cognitively unimpaired (CU; Aβ-) individuals. However, this coexistence is likely a misperception of 2D imaging. In this study, data science techniques were used to evaluate PET images, transforming Aβ imaging into topographical pixel arrays for 3D reconstruction. Canal-like networks in the brain, skull, and neck were discovered to be part of the non-CNS fluid (NCF) compartment, which quarantines Aβ. In CU/Aβ- subjects, Aβ is transported to peripheral lymphatics. In AD/Aβ+ subjects, Aβ becomes congested in the NCF, diffusing into CNS interstitial fluid, leading to progression and neurodegeneration.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014531
- Subject Headings
- Alzheimer Disease, Amyloid beta-Peptides, Positron-Emission Tomography
- Format
- Document (PDF)
- Title
- ANALYSIS OF THE RELATIONSHIP BETWEEN STUDENTS' SOCIOECONOMIC STATUS AND THEIR ACADEMIC PERFORMANCE.
- Creator
- Dulcio, Gamalie Haldas, Zhuang, Hanqi, Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
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Promoting diversity in STEM fields is essential to fostering innovation and addressing global challenges. Despite extensive efforts, the representation of minority groups, including women, in undergraduate computer science and engineering programs remains low, posing significant barriers to equity and inclusivity in STEM education (Nicole & DeBoer, 2020). This systematic review explores the socio-economic and cultural challenges discouraging minority students from pursuing degrees,...
Show morePromoting diversity in STEM fields is essential to fostering innovation and addressing global challenges. Despite extensive efforts, the representation of minority groups, including women, in undergraduate computer science and engineering programs remains low, posing significant barriers to equity and inclusivity in STEM education (Nicole & DeBoer, 2020). This systematic review explores the socio-economic and cultural challenges discouraging minority students from pursuing degrees, specifically computer science and engineering disciplines. A comprehensive literature search was conducted across databases such as IEEE Xplore, Google Scholar, and Scopus using specific search terms. Studies were chosen based on clear inclusion and exclusion criteria. Data was carefully extracted and analyzed, focusing on primary obstacles such as the scarcity of role models, biases, and educational barriers. To evaluate the quality of the studies included in the review, Covidence’s quality assessment tools were used, ensuring methodological rigor and consistency across the studies.
Show less - Date Issued
- 2024
- PURL
- http://purl.flvc.org/fau/fd/FA00014554
- Subject Headings
- Socioeconomic status, Students--Economic conditions, Students--Social conditions, Academic achievement, Educational sociology
- Format
- Document (PDF)