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- Title
- COASTAL ABSENCES IN ANDEAN ARCHAEOLOGY AND THE CONSTRUCTION OF A HIGHLAND-CENTRIC INDIGENEITY.
- Creator
- Crawford, Ben, Corr, Rachel, Harriet L. Wilkes Honors College, Florida Atlantic University
- Abstract/Description
-
As a tangible linkage to the past, archaeological material culture plays a vital role in constructing contemporary identities. In Ecuador, archaeology focused on the state societies of the Andean highlands has long informed a hill-centric national narrative about the indigenous past, leaving coastal peoples on the margins. Conversely, more recent efforts at investigating overlooked coastal sites have paralleled the process of coastal communities publically reclaiming their indigenous status....
Show moreAs a tangible linkage to the past, archaeological material culture plays a vital role in constructing contemporary identities. In Ecuador, archaeology focused on the state societies of the Andean highlands has long informed a hill-centric national narrative about the indigenous past, leaving coastal peoples on the margins. Conversely, more recent efforts at investigating overlooked coastal sites have paralleled the process of coastal communities publically reclaiming their indigenous status. This thesis investigates the historical trends in the field of Andean archaeology which have contributed to a popular conception of highland indigeneity in Ecuador that excludes coastal peoples. However, coastal peoples’ recent expressions of indigeneity have reciprocally drawn from and shaped the work of contemporary archaeologists working in coastal sites, articulating a vision of indigenous ethnicity rooted in a living relationship to the archaeological record which subverts predominant highland centric narratives.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FAUHT00286
- Format
- Document (PDF)
- Title
- AN EFFECTIVE ENSEMBLE LEARNING-BASED REAL-TIME INTRUSION DETECTION SCHEME FOR IN-VEHICLE NETWORK.
- Creator
- Alalwany, Easa, Mahgoub, Imadeldin, Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
-
Connectivity and automation have expanded with the development of autonomous vehicle technology. One of several automotive serial protocols that can be used in a wide range of vehicles is the controller area network (CAN). The growing functionality and connectivity of modern vehicles make them more vulnerable to cyberattacks aimed at vehicular networks. The CAN bus protocol is vulnerable to numerous attacks as it lacks security mechanisms by design. It is crucial to design intrusion detection...
Show moreConnectivity and automation have expanded with the development of autonomous vehicle technology. One of several automotive serial protocols that can be used in a wide range of vehicles is the controller area network (CAN). The growing functionality and connectivity of modern vehicles make them more vulnerable to cyberattacks aimed at vehicular networks. The CAN bus protocol is vulnerable to numerous attacks as it lacks security mechanisms by design. It is crucial to design intrusion detection systems (IDS) with high accuracy to detect attacks on the CAN bus. In this dissertation, to address all these concerns, we design an effective machine learning-based IDS scheme for binary classification that utilizes eight supervised ML algorithms, along with ensemble classifiers, to detect normal and abnormal activities in the CAN bus. Moreover, we design an effective ensemble learning-based IDS scheme for detecting and classifying DoS, fuzzing, replay, and spoofing attacks. These are common CAN bus attacks that can threaten the safety of a vehicle’s driver, passengers, and pedestrians. For this purpose, we utilize supervised machine learning in combination with ensemble methods. Ensemble learning aims to achieve better classification results through the use of different classifiers that are combined into a single classifier. Furthermore, in the pursuit of real-time attack detection and classification, we use the Kappa architecture for efficient data processing, enhancing the IDS’s accuracy and effectiveness. We build this system using the most recent CAN intrusion dataset provided by the IEEE DataPort. We carried out the performance evaluation of the proposed system in terms of accuracy, precision, recall, F1-score, and area under curve receiver operator characteristic (ROC-AUC). For the binary classification, the ensemble classifiers outperformed the individual supervised ML classifiers and improved the effectiveness of the classifier. For detecting and classifying CAN bus attacks, the ensemble learning methods resulted in a robust and accurate multiclassification IDS for common CAN bus attacks. The stacking ensemble method outperformed other recently proposed methods, achieving the highest performance. For the real-time attack detection and classification, the ensemble methods significantly enhance the accuracy the real-time CAN bus attack detection and classification. By combining the strengths of multiple models, the stacking ensemble technique outperformed individual supervised models and other ensembles.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014298
- Subject Headings
- Automated vehicles, Controller Area Network (Computer network), Intrusion detection systems (Computer security)
- Format
- Document (PDF)
- Title
- Mixed Method of Health Literacy and Diabetes Self- Management Among Saudi Adults with Type 2 Diabetes Mellitus.
- Creator
- Almashni, Ibtisam Y., Hain, Debra, Florida Atlantic University, Christine E. Lynn College of Nursing, Christine E. Lynn College of Nursing
- Abstract/Description
-
The worldwide threat of Diabetes Mellitus (DM) has been increasing rapidly, and is now an estimated 463 million, of which 55 million people originate from Middle East and Nort African (“MENA”) region (international Diabetes Federation [“IDF’], 2020). In Saudi Arabia, the prevalence of diabetes has roughly reached a ten-fold increase in the past three decades, placing Saudi Arabia’s incidence as one of the highest globally (Almubark et al., 2022). The purpose of the study was to examine the...
Show moreThe worldwide threat of Diabetes Mellitus (DM) has been increasing rapidly, and is now an estimated 463 million, of which 55 million people originate from Middle East and Nort African (“MENA”) region (international Diabetes Federation [“IDF’], 2020). In Saudi Arabia, the prevalence of diabetes has roughly reached a ten-fold increase in the past three decades, placing Saudi Arabia’s incidence as one of the highest globally (Almubark et al., 2022). The purpose of the study was to examine the relationship between health and diabetes self-management among Saudi adults with Type 2 Diabetes Mellitus (T2DM). The study further aimed to explore how Saudi adult with T2DM seek and utilize diabetes knowledge to self-manage their diabetes. The study was guided by Leininger’s Culture Care Diversity and Universality Theory (2002). Leininger’s Sunrise Enabler- Model provided a framework to explore the various factors that affect diabetes self-management through a cultural lens. This model provides a comprehensive understanding pf multiple factors influencing diabetes self-management. A sample of 66 Saudi adults with T2DM aged 40-61 and older was recruited from diabetes center and Primary Healthcare Center (PHCC) at National Guard Hospital King Abdulaziz Medical City Jeddah, Saudi Arabia. A Parallel Mixed Method (PPM) design was applied, using semi-structured interviews, Diabetes Self-management Questionnaire (DSMQ), Short Test of Functional Health Literacy in Adult (S-TOFHLA), and sociodemographic surveys.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014326
- Subject Headings
- Diabetes, Health literacy, Self Management, Saudi Arabians, Health education
- Format
- Document (PDF)
- Title
- ENHANCING IOT DEVICES SECURITY: ENSEMBLE LEARNING WITH CLASSICAL APPROACHES FOR INTRUSION DETECTION SYSTEM.
- Creator
- Alotaibi, Yazeed, Ilyas, Mohammad, Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
-
The Internet of Things (IoT) refers to a network of interconnected nodes constantly engaged in communication, data exchange, and the utilization of various network protocols. Previous research has demonstrated that IoT devices are highly susceptible to cyber-attacks, posing a significant threat to data security. This vulnerability is primarily attributed to their susceptibility to exploitation and their resource constraints. To counter these threats, Intrusion Detection Systems (IDS) are...
Show moreThe Internet of Things (IoT) refers to a network of interconnected nodes constantly engaged in communication, data exchange, and the utilization of various network protocols. Previous research has demonstrated that IoT devices are highly susceptible to cyber-attacks, posing a significant threat to data security. This vulnerability is primarily attributed to their susceptibility to exploitation and their resource constraints. To counter these threats, Intrusion Detection Systems (IDS) are employed. This study aims to contribute to the field by enhancing IDS detection efficiency through the integration of Ensemble Learning (EL) methods with traditional Machine Learning (ML) and deep learning (DL) models. To bolster IDS performance, we initially utilize a binary ML classification approach to classify IoT network traffic as either normal or abnormal, employing EL methods such as Stacking and Voting. Once this binary ML model exhibits high detection rates, we extend our approach by incorporating a ML multi-class framework to classify attack types. This further enhances IDS performance by implementing the same Ensemble Learning methods. Additionally, for further enhancement and evaluation of the intrusion detection system, we employ DL methods, leveraging deep learning techniques, ensemble feature selections, and ensemble methods. Our DL approach is designed to classify IoT network traffic. This comprehensive approach encompasses various supervised ML, and DL algorithms with ensemble methods. The proposed models are trained on TON-IoT network traffic datasets. The ensemble approaches are evaluated using a comprehensive metrics and compared for their effectiveness in addressing this classification tasks. The ensemble classifiers achieved higher accuracy rates compared to individual models, a result attributed to the diversity of learning mechanisms and strengths harnessed through ensemble learning. By combining these strategies, we successfully improved prediction accuracy while minimizing classification errors. The outcomes of these methodologies underscore their potential to significantly enhance the effectiveness of the Intrusion Detection System.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014304
- Subject Headings
- Internet of things, Intrusion detection systems (Computer security), Machine learning
- Format
- Document (PDF)
- Title
- DEVELOPMENT OF AN AUTOMATED DEVICE FOR THE OPTIMIZED REGULATION OF CEREBROSPINAL FLUID (CSF).
- Creator
- Anjum, Muhammad Waleed, Asghar, Waseem, Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
-
Cerebrospinal fluid (CSF) has a role, in keeping the brain and spinal cord safe and nourished within the nervous system (CNS). This clear and colorless fluid is produced in the ventricles of the brain. Surrounds these structures acting as a protective cushion. CSF plays a role in maintaining nervous system health and ensuring optimal functioning. CSF accomplishes four objectives. Protection: The brain and spinal cord are shielded from harm due to CSFs natural shock absorbing properties. This...
Show moreCerebrospinal fluid (CSF) has a role, in keeping the brain and spinal cord safe and nourished within the nervous system (CNS). This clear and colorless fluid is produced in the ventricles of the brain. Surrounds these structures acting as a protective cushion. CSF plays a role in maintaining nervous system health and ensuring optimal functioning. CSF accomplishes four objectives. Protection: The brain and spinal cord are shielded from harm due to CSFs natural shock absorbing properties. This effectively safeguards these structures, from injuries caused by impacts or collisions. Nutrition It ensures a favorable environment for neural cells to perform at their peak by supplying essential nutrients and removing waste products from the brain and spinal cord.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014342
- Subject Headings
- Cerebrospinal fluid, Biomedical devices, Biomedical engineering
- Format
- Document (PDF)
- Title
- RSSI-BASED PASSIVE LOCALIZATION IN COMPLEX OUTDOOR ENVIRONMENTS USING WI-FI PROBE REQUESTS.
- Creator
- Bao, Fanchen, Hallstrom, Jason O., Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
-
Capturing pedestrian mobility patterns with high fidelity provides a foundation for data-driven decision-making in support of city planning, emergency response, and more. Due to scalability requirements and the sensitive nature of studying pedestrian movements in public spaces, the methods involved must be passive, low-cost, and privacy-centric. Pedestrian localization based on Received Signal Strength Indicator (RSSI) measurements from Wi-Fi probe requests is a promising approach. Probe...
Show moreCapturing pedestrian mobility patterns with high fidelity provides a foundation for data-driven decision-making in support of city planning, emergency response, and more. Due to scalability requirements and the sensitive nature of studying pedestrian movements in public spaces, the methods involved must be passive, low-cost, and privacy-centric. Pedestrian localization based on Received Signal Strength Indicator (RSSI) measurements from Wi-Fi probe requests is a promising approach. Probe requests are spontaneously emitted by Wi-Fi-enabled devices, are readily captured by of-the-shelf components, and offer the potential for anonymous RSSI measurement. Given the ubiquity of Wi-Fi-enabled devices carried by pedestrians (e.g., smartphones), RSSI-based passive localization in outdoor environments holds promise for mobility monitoring at scale. To this end, we developed the Mobility Intelligence System (MobIntel), comprising inexpensive sensor hardware to collect RSSI data, a cloud backend for data collection and storage, and web-based visualization tools. The system is deployed along Clematis Street in the heart of downtown West Palm Beach, FL, and over the past three years, over 50 sensors have been installed. Our research first confirms that RSSI-based passive localization is feasible in a controlled outdoor environment (i.e., no obstructions and little signal interference), achieving ≤ 4 m localization error in more than 90% of the cases. When significant time-varying signal fluctuations are introduced as a result of long-term deployment, performance can be maintained with an overhaul of the problem formulation and an updated localization model. However, when the outdoor environment is fully uncontrolled (e.g., along Clematis Street), the performance decreases to ≤ 4 m error in fewer than 70% of the cases. However, the drop in performance may be addressed through improved sensor maintenance, additional data collection, and appropriate domain knowledge.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014299
- Subject Headings
- Pedestrian traffic flow, Information technology, Computer Science
- Format
- Document (PDF)
- Title
- Death Conjunct Living.
- Creator
- Bates, Samantha, Furman, Andrew, Florida Atlantic University, Department of English, Dorothy F. Schmidt College of Arts and Letters
- Abstract/Description
-
“Death Conjunct Living” is a collection of flash essays that explores the interconnectedness between life and death—births, miscarriages, childhoods, funerals— as well as the term “empty stomach.” How a stomach can be empty of child or empty of food; how it can indicate a birth, a miscarriage, or an eating disorder. “Death Conjunct Living” is an exploration of the flash medium and how micro nonfiction can tackle macro themes.
- Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014343
- Subject Headings
- Essays, Creative writing, Flash fiction
- Format
- Document (PDF)
- Title
- EXPLORING THERAPIST FACTORS ON PREMATURE TERMINATION AND THE THERAPEUTIC RELATIONSHIP.
- Creator
- Beattie, Erin L., Peluso, Paul, Florida Atlantic University, Department of Counselor Education, College of Education
- Abstract/Description
-
The present study investigates therapist factors (such as conversation analysis, affectual interactions, and therapist facilitative skills) on client premature termination and the therapeutic relationship. The interactions of clients and therapists in a total sample of 76 psychotherapy sessions were analyzed using Hills Skills System (2017), Gottman, Woodin, and Coan’s (1998) Specific Affect Coding System, and scales of the Working Alliance Inventory (WAI) and Real Relationship Inventory (RRI...
Show moreThe present study investigates therapist factors (such as conversation analysis, affectual interactions, and therapist facilitative skills) on client premature termination and the therapeutic relationship. The interactions of clients and therapists in a total sample of 76 psychotherapy sessions were analyzed using Hills Skills System (2017), Gottman, Woodin, and Coan’s (1998) Specific Affect Coding System, and scales of the Working Alliance Inventory (WAI) and Real Relationship Inventory (RRI). Coded data were analyzed using Kruskal-Wallis and Mann-Whitney U tests which found significant differences between clients who dropout and the types of questions being asked in session (HSS). There were also significant differences between clients who dropout and the therapist and client SPAFF scores, SPAFF and HSS scores on the WAI and RRI, as well as the quality of questions being asked (HSS) over time (from initial session to fourth session). Coded data for differences between clients who dropout and the therapist and client assessment of the quality of the working alliance and real relationship were assessed using Kruskal-Wallis and Mann-Whitney U tests and found no significant differences. Analysis of the results support the presence of therapist factors on the therapeutic relationship and client premature termination. These findings can also be added to the literature regarding the outcomes of the therapeutic relationship on client premature termination. The implications for psychotherapy practice, education, and research are discussed.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014322
- Subject Headings
- Therapist and patient, Psychotherapy and Counseling, Conversation analysis
- Format
- Document (PDF)
- Title
- VETERANS’ PERSPECTIVES ON THE MEANING OF THEIR WELL-BEING EXPERIENCE: A PHENOMENOLOGICAL INQUIRY.
- Creator
- Birmingham, Cheryl Lynn, Chiang-Hanisko, Lenny, Florida Atlantic University, Christine E. Lynn College of Nursing, Christine E. Lynn College of Nursing
- Abstract/Description
-
The veterans are a unique community shaped by past military experiences that may have positive and negative effects on their well-being as soldiers. With nearly half of the 18.4 million veterans in the United States living beyond 61 years, age-related physical and mental health conditions may impact the veterans’ well-being. Promoting veterans’ well-being has been studied extensively but literature on how they define it is scanty. It is critical to understand how veterans define well-being to...
Show moreThe veterans are a unique community shaped by past military experiences that may have positive and negative effects on their well-being as soldiers. With nearly half of the 18.4 million veterans in the United States living beyond 61 years, age-related physical and mental health conditions may impact the veterans’ well-being. Promoting veterans’ well-being has been studied extensively but literature on how they define it is scanty. It is critical to understand how veterans define well-being to inform future program development to address mental health needs. The purpose of this study is to discover the meaning and the lived experience of well-being among veterans. The methodology used for this study was a qualitative hermeneutic interpretative phenomenological approach to understand the meaning of veterans’ well-being. It allowed the phenomena to surface while exposing the essence of and the experience. The sampling method for recruiting participants was purposive sampling, with semi structured interviews conducted via ZOOM and direct observations at Veteran Service Organizations (VSOs) to obtain data. Fourteen veterans participated in this study, comprising eight males and six females with majority aged over 61 years. In terms of race/ethnicity, 64 % were White, 21% Hispanic and 15 % African American. With the use of Max van Manen’s analysis strategy, seven major themes emerged: (a) A Connection With A Special Bond To The Military Sisterhood/Brotherhood, (b) The Lingering Effects Of Military Service Continue To Simmer In Veteran life, (c) Feeling Grateful/Prideful Through Appreciation For Their Military Service, (d) Healthy Companionships/Relationships With Mutual Respect Yield Veteran Equilibrium, (e) Creating A Veteran Framily/Fraternity, (f) Self-fulfilment By Giving Back And Making A Life With A Purpose and (g) Veterans Living A Healthy Life Caring For Self. Six of the seven themes addressed the veterans’ well-being. The lingering effects have persisted and challenged the Veterans’ emotional well-being. However, they were able to express their military camaraderie even in the veterans’ life. Programs based on social relationships that allow connections with veterans and/or their significant others need to be established.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014317
- Subject Headings
- Veterans, Veterans--Mental health, Well-being, Caring
- Format
- Document (PDF)
- Title
- BIOLUMINESCENCE OF THE CTENOPHORE MNEMIOPSIS LEIDYI: FIRST FLASH KINETICS.
- Creator
- Blackburn, Abigail, Twardowski, Michael, Florida Atlantic University, Department of Ocean and Mechanical Engineering, College of Engineering and Computer Science
- Abstract/Description
-
The ctenophore Mnemiopsis leidyi is an opportunistic species that can be extremely abundant and invasive in many parts of the world. It is well known for its bright bioluminescence, but its light emission response to flow stimulation has not been rigorously quantified. The objective of this study is to determine the luminescent response of M. leidyi to several types of mechanical stimuli, an impeller pump with the Underwater Bioluminescence Assessment Tool (UBAT) bathyphotometer and stirring...
Show moreThe ctenophore Mnemiopsis leidyi is an opportunistic species that can be extremely abundant and invasive in many parts of the world. It is well known for its bright bioluminescence, but its light emission response to flow stimulation has not been rigorously quantified. The objective of this study is to determine the luminescent response of M. leidyi to several types of mechanical stimuli, an impeller pump with the Underwater Bioluminescence Assessment Tool (UBAT) bathyphotometer and stirring as the stimulus within an integrating sphere. Tests were conducted with three day old cydippid larvae, analyzing flash parameters of rise time, peak intensity, decay slope, decay time, total integrated emission, total mechanically stimulable luminescence (TMSL), integrated flash emission, and flash duration. There were four patterns of bioluminescent responses measured with the UBAT, but they did not have statistically different flash kinetics. For the integrating sphere, the average peak intensity and TMSL were much greater than for the UBAT due to the different forms of stimulation. This study provides a well-defined baseline of cydippid larvae flash responses which may be used for identifying this species at this life stage in situ.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014341
- Subject Headings
- Mnemiopsis leidyi, Bioluminescence, Ctenophores
- Format
- Document (PDF)
- Title
- THE INFLUENCE OF THE INVISIBLE: THE AGENCY OF MYTH AND ABSENCE IN FRANCO’S SPAIN AND FRANCOIST HISTORICAL FICTION.
- Creator
- Bresciano, Cora, Hagood, Taylor, Florida Atlantic University, Department of English, Dorothy F. Schmidt College of Arts and Letters
- Abstract/Description
-
Both research and lived experience indicate that intangible things such as myths and absences may acquire agency, becoming Latourian actants and causing changes in people’s thoughts, beliefs, and actions. This dissertation focuses on myths and absences located in Spain’s 20th century—specifically Francoist-generated political myths, the absences of those disappeared by the Franco regime, and the literary myths created by authors of historical fiction set during the Spanish Civil War, the...
Show moreBoth research and lived experience indicate that intangible things such as myths and absences may acquire agency, becoming Latourian actants and causing changes in people’s thoughts, beliefs, and actions. This dissertation focuses on myths and absences located in Spain’s 20th century—specifically Francoist-generated political myths, the absences of those disappeared by the Franco regime, and the literary myths created by authors of historical fiction set during the Spanish Civil War, the resulting dictatorship, and the Transition to Democracy. The argument is made that these three actants— political myth, absence, and literary myth—have acted and interacted in the following sequence: the political myths put forth by the Francoists and presented as facts led to the complicity of many of the Spanish people in the extermination of those considered dangerous or undesirable to the regime; once released into the popular imagination, the political myths gained agency, spurring the bigoted beliefs and persecutory actions that led to the absences of the maligned people. The presence of these tragic absences in the lives of their surviving loved ones then gained agency, indelibly marking the survivors and causing grief, anger, and bewilderment as well as fear, humiliation, silence, and transgenerational trauma. The absences also caused the desire among contemporary writers of historical fiction, some of them descendants of the disappeared who grew up under the cloud of fear and silence perpetuated by those disappearances, to write alternate histories pointing out the absurdities and atrocities connected to the earlier political myths and the resulting absences of undesirables. These literary myths thus acquired their own agency, changing the thoughts, beliefs, and actions of readers who were able to finally see through the truths and tragedies that lay hidden for so long behind the hostile myths. In these chapters, eight historical fictions—five novels, two plays, one film—and one non-fiction account, described by its author as “a novel without fiction”—are analyzed for evidence of the presence and the agency of political myth, absence, and literary myth.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014318
- Subject Headings
- Francoism, Literature, Myths
- Format
- Document (PDF)
- Title
- EXPOSURE TO ALGAL BIOTOXINS: EXPLORING HEALTH EFFECTS IN GREEN SEA TURTLES (CHELONIA MYDAS).
- Creator
- Brown, Hunter, Page, Annie, Florida Atlantic University, Department of Marine Science and Oceanography, Charles E. Schmidt College of Science
- Abstract/Description
-
In the inter-coastal waters of Florida, green sea turtles (Chelonia mydas) are regularly exposed to regional blooms of harmful algae which produce biotoxins. A retrospective analysis was conducted on stranded green sea turtles along the Indian River Lagoon, FL, USA. Stranding, necropsy, and histopathology reports were analyzed for 40 juvenile turtles. Liver (N=40) and kidney (N=36) tissues were analyzed for a suite of 14 harmful algal bloom (HAB)-associated biotoxins. Thirty-four (85%)...
Show moreIn the inter-coastal waters of Florida, green sea turtles (Chelonia mydas) are regularly exposed to regional blooms of harmful algae which produce biotoxins. A retrospective analysis was conducted on stranded green sea turtles along the Indian River Lagoon, FL, USA. Stranding, necropsy, and histopathology reports were analyzed for 40 juvenile turtles. Liver (N=40) and kidney (N=36) tissues were analyzed for a suite of 14 harmful algal bloom (HAB)-associated biotoxins. Thirty-four (85%) turtles tested positive for at least one biotoxin, including 21(53%) liver and 22(61%) kidney tissues. Statistically significant relationships were identified between the presence of common histopathological abnormalities and biotoxins of: melanomacrophage/hyperplasia and brevetoxin-3 (P=0.03) in liver tissues, and renal fibrosis and nodularin (P = 0.04) and lymphocytosis and neosaxitoxin (P=0.03) in kidney tissues. These data demonstrate that wild turtles are commonly exposed to HAB-associated biotoxins with potential chronic health effects that contribute to strandings in the Indian River Lagoon.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014363
- Subject Headings
- Chelonia mydas, Green sea turtles, Algal toxins, Indian River (Fla. : Lagoon)
- Format
- Document (PDF)
- Title
- LIMITED PARTNER ESG STRATEGIES AND ESG APPROACHES BY PRIVATE EQUITY FUNDS.
- Creator
- Buehler, Robert G., Cumming, Douglas, Florida Atlantic University, Department of Finance, College of Business
- Abstract/Description
-
This study utilized environmental, social, and governance (ESG) data to analyze how institutional investors' strategies relate to the approaches of the private equity (PE) funds they invest in. Using limited partner (LP) investor and general partner (GP) PE fund data from Preqin, I created ESG scores for both LP and PE funds. Ordinary least-squares regression showed a significant, positive relationship between LP/GP ESG strategies. However, the relationship became negative and significant...
Show moreThis study utilized environmental, social, and governance (ESG) data to analyze how institutional investors' strategies relate to the approaches of the private equity (PE) funds they invest in. Using limited partner (LP) investor and general partner (GP) PE fund data from Preqin, I created ESG scores for both LP and PE funds. Ordinary least-squares regression showed a significant, positive relationship between LP/GP ESG strategies. However, the relationship became negative and significant when firm-, fund-, and country-level controls were added. This misalignment between statements and action, often called greenwashing, suggests that firms are driven to ESG reporting due to external factors and do not feel accountable for investment decisions that follow strategic disclosures. Investor environmental (E), social (S), and governance (G) strategies had different relationships with GP ESG approaches. Public institutional investors, fund size, and the presence of a civil law system were positive contributing factors to the LP/GP ESG relationship. Fund performance was negatively associated with the relationship. There was also a significant difference in the LP/GP ESG approach between European PE funds versus those in North America. These findings show that E, S, and G factors may be more accurately analyzed separately than as one combined cluster. The findings also show that local conditions influence ESG strategic alignment between LPs and GPs. They suggest policymakers consider unique country-level attributes and differences in fund-level characteristics when attempting to influence ESG disclosure. ESG rating services could consider including factors that measure alignment between investors’ strategic statements and their investment decisions. The results provide valuable information on corporate social responsibility (CSR) in private markets, which has yet to be broadly studied compared to the extensive CSR literature available on public companies.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014300
- Subject Headings
- Private equity funds, Limited partnership, Social responsibility of business
- Format
- Document (PDF)
- Title
- ADVOCATING STUDENT WITHIN ENVIRONMENT IN APPLICATION: THE LIVED EXPERIENCE OF SIXTH GRADE STUDENTS’ PARTICIPATION IN A SMALL GROUP INTERVENTION.
- Creator
- Campbell, Kadeem, Bowers, Hannah, Florida Atlantic University, Department of Counselor Education, College of Education
- Abstract/Description
-
A sense of belonging is instrumental to an individual’s mental health. The American School Counselor Association outlined that school counselors are responsible for helping students manage emotions and apply interpersonal skills. The school setting plays an integral part in the development of student’s social and emotional competencies. Approaches to school counseling, such as Advocating Student-within-Environment (ASE), are pivotal in efforts to help students expand their social/emotional...
Show moreA sense of belonging is instrumental to an individual’s mental health. The American School Counselor Association outlined that school counselors are responsible for helping students manage emotions and apply interpersonal skills. The school setting plays an integral part in the development of student’s social and emotional competencies. Approaches to school counseling, such as Advocating Student-within-Environment (ASE), are pivotal in efforts to help students expand their social/emotional skills. This study examined the phenomenological experience of sixth grade students who participated in an ASE-influenced counseling program. One objective for this study was to advance the current literature regarding school counseling’s efficacy in promoting greater connectedness among students and their school environment. The study was conducted using the Student Success Skills (SSS) small group intervention, led by a school counselor already trained in the program. The research questions under investigation were: What is the phenomenological experience of middle school students’ participation in an ASE-aligned evidence-based guidance curriculum? Does the phenomenological experience of middle school students’ participation in an ASE-aligned evidence-based guidance curriculum translate to connectedness among the students in the intervention? Does the phenomenological experience of middle school students’ participation in an ASE-aligned evidence-based guidance curriculum lead to coregulatory relationships among students and school faculty?
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014301
- Subject Headings
- Educational counseling, Belonging (Social psychology), Middle school students
- Format
- Document (PDF)
- Title
- TIMELINE OF NUTRIENT INCORPORATION FROM BROODSTOCK DIET TO EGG IN CALIFORNIA YELLOWTAIL, SERIOLA DORSALIS.
- Creator
- Chin, Li Sun, Mejri, Sahar, Florida Atlantic University, Department of Marine Science and Oceanography, Charles E. Schmidt College of Science
- Abstract/Description
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Existing brood fish research has ascertained that eggs are heavily influenced by broodstock diet but there is no information regarding this timeline of nutritional incorporation. The objective of this study is to determine duration of nutritional incorporation from diet to eggs through fatty acids. Nine California Yellowtail (Seriola dorsalis) broodstock were fed alternating diets of commercial pellets (Vitalis PRIMA: Skretting) and cutbait. Biochemical and biometric data from spawns were...
Show moreExisting brood fish research has ascertained that eggs are heavily influenced by broodstock diet but there is no information regarding this timeline of nutritional incorporation. The objective of this study is to determine duration of nutritional incorporation from diet to eggs through fatty acids. Nine California Yellowtail (Seriola dorsalis) broodstock were fed alternating diets of commercial pellets (Vitalis PRIMA: Skretting) and cutbait. Biochemical and biometric data from spawns were collected and analyzed for differences and similarities throughout the alternating diets. Eggs were observed to selectively incorporate higher sources of linolenic and linoleic acid from the pelleted diet, and eicosapentaenoic acid from the cutbait diet. Interestingly, results showed overall fatty acids from both diets were fully incorporated by eggs within 9 days following the diet switch. These findings provided new insight towards the selective incorporation of nutrients and will open new doors for future broodstock nutrition research.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014327
- Subject Headings
- Seriola dorsalis, Yellowtail, Aquaculture, Fishes—Feeding and feeds, Brood stock assessment
- Format
- Document (PDF)
- Title
- SHALLOW-WATER ENCRUSTERS AND THE TAPHONOMY OF THE HOLOCENE STORM RIDGE OFF POMPANO BEACH, BROWARD COUNTY, FLORIDA.
- Creator
- Ciesinski, Carson Park, Oleinik, Anton, Florida Atlantic University, Department of Geosciences, Charles E. Schmidt College of Science
- Abstract/Description
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Encrusters have a proven history as indicators of environmental conditions in nearshore habitats and are useful in both ecological and paleoenvironmental research within benthic ecosystems. Off the coast of Pompano Beach, Florida, a Holocene storm deposit contains large accumulations of subfossil Acropora palmata fragments with these same encrusting organisms attached to their surfaces. The objective of this research was to create an inventory of encrusters found within the storm deposit and...
Show moreEncrusters have a proven history as indicators of environmental conditions in nearshore habitats and are useful in both ecological and paleoenvironmental research within benthic ecosystems. Off the coast of Pompano Beach, Florida, a Holocene storm deposit contains large accumulations of subfossil Acropora palmata fragments with these same encrusting organisms attached to their surfaces. The objective of this research was to create an inventory of encrusters found within the storm deposit and document their successional outgrowth to determine the post-depositional history of sampled coral fragments. Foraminifera and coralline algae were the most common species found, and various sequences of successional outgrowth were observed that indicated fragments were either deposited gradually, immediately buried, or reworked after initial burial. This information is vital for understanding modern biodiversity on the Pompano coast, and the development of nearshore benthic marine ecosystems during the mid-late Holocene.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014344
- Subject Headings
- Taphonomy, Corals, Acropora palmata, Pompano Beach (Fla.), Environmental sciences
- Format
- Document (PDF)
- Title
- CHARACTERIZATION OF DIFFERENTIATED HUMAN NEUROBLASTOMA SH-SY5Y CELLS IN CULTURE.
- Creator
- Condikey, Siri, Prentice, Howard, Florida Atlantic University, Department of Biomedical Science, Charles E. Schmidt College of Medicine
- Abstract/Description
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Alzheimer’s disease (AD) is one of the most common neurodegenerative diseases affecting an estimated 20 million worldwide. The primary pathology of AD is the progressive loss of basal forebrain cholinergic neurons, which is responsible for the cognitive decline experienced by AD patients. The mechanisms underlying this selective vulnerability have not been fully elucidated. Furthermore, oxidative stress is a key factor behind the pathology of AD leading to this neuronal loss. The current...
Show moreAlzheimer’s disease (AD) is one of the most common neurodegenerative diseases affecting an estimated 20 million worldwide. The primary pathology of AD is the progressive loss of basal forebrain cholinergic neurons, which is responsible for the cognitive decline experienced by AD patients. The mechanisms underlying this selective vulnerability have not been fully elucidated. Furthermore, oxidative stress is a key factor behind the pathology of AD leading to this neuronal loss. The current literature suggests that there are limited in-vitro models available to accurately simulate the hallmark symptoms of Alzheimer's disease (AD). The SH-SY5Y cell line has been used extensively to study neuronal stress responses but the undifferentiated cell type has been predominantly used. Undifferentiated SH-SY5Y versus differentiated SH-SY5Y have been shown to have different interaction, expression and localization with AD hallmark, amyloid-b -42. This project sought to use differentiated cholinergic cells from the line SH-SY5Y to further isolate and elucidate, in-vitro, the mechanisms behind the oxidative stress response, a key stressor in the pathology of AD. Building upon previous studies, a protocol to differentiate SH-SY5Y cells with retinoic acid (RA) and neurotrophin (BDNF) to mature neurons of the cholinergic phenotype was optimized and implemented. The results showed successful differentiation into the cholinergic phenotype as evidenced via immunofluorescence imaging of choline acetyl transferase (ChAT) expression and mature neurite morphology. To simulate oxidative stress, we exposed both undifferentiated and differentiated SH-SY5Y cells to hypoxic conditions. Results indicated a stress response to mild hypoxic conditions with higher sensitivity in cholinergic differentiated SH-SY5Y. Understanding these hallmark mechanisms behind oxidative stress is crucial to developing mechanism-based therapeutics for AD.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014347
- Subject Headings
- Alzheimer Disease, Cholinergic Neurons, Alzheimer Disease--pathology
- Format
- Document (PDF)
- Title
- REEF WARS: MONITORING AND PREDICTING PHASE SHIFTS ON FLORIDA CORAL REEFS.
- Creator
- Conkling, Megan, Pomponi, Shirley A., Hindle, Tobin, Florida Atlantic University, Department of Geosciences, Charles E. Schmidt College of Science
- Abstract/Description
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Reefs off the coast of Florida face threats from stressors associated with climate change which leads to phase shifts. Under rapid climate change, a clear understanding of how reefs and their benthic organisms respond is still lacking and needs to be investigated. Using in situ imagery, a sponge cell model, and long-term benthic biota surveys, the effects of climate change on reef dynamics were explored in this dissertation project. Results from the in situ imagery found that differences in...
Show moreReefs off the coast of Florida face threats from stressors associated with climate change which leads to phase shifts. Under rapid climate change, a clear understanding of how reefs and their benthic organisms respond is still lacking and needs to be investigated. Using in situ imagery, a sponge cell model, and long-term benthic biota surveys, the effects of climate change on reef dynamics were explored in this dissertation project. Results from the in situ imagery found that differences in spectral signatures are found between functional groups (i.e., corals, sponges, and algae) and different species from substrate. Results based on a sponge cell model and transcriptomics data have found a resilience of these sponges to the predicted thermal extremes. Results from benthic biota surveys suggested that depth and light attenuation have the largest influence on the predicted distribution of corals, sponges, and algae at Pulley Ridge. Climate change has been impacting reef benthic biota starting at the organismal scale up to the reef scale. This research demonstrates the importance of monitoring reefs at a finer scale and determining the thresholds and limits of benthic biota to projected thermal extremes to better inform resource managers to preserve these irreplaceable ecosystems.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014323
- Subject Headings
- Reefs--Florida, Climate change, Coral reef ecology
- Format
- Document (PDF)
- Title
- NOVEL KIRIGAMI-INSPIRED FLEXIBLE ROBOTIC EXTENSION FOR MOBILE PLATFORMS.
- Creator
- Den Ouden, Casey, Su, Tsung-Chow, Ouyang, Bing, Florida Atlantic University, Department of Ocean and Mechanical Engineering, College of Engineering and Computer Science
- Abstract/Description
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Since 2010, aquaculture practices have produced 70% of global seafood consumption. However, this fast-growing sector of agriculture has yet to see the adoption of advanced technologies to improve farm operations. The Hybrid Aerial Underwater robotiCs System (HAUCS) is an Internet of Things (IoT) framework that aims to bring transformative changes to pond aquaculture. This project focuses on the latest developments in the HAUCS mobile sensing platform and field deployment. A novel rigid...
Show moreSince 2010, aquaculture practices have produced 70% of global seafood consumption. However, this fast-growing sector of agriculture has yet to see the adoption of advanced technologies to improve farm operations. The Hybrid Aerial Underwater robotiCs System (HAUCS) is an Internet of Things (IoT) framework that aims to bring transformative changes to pond aquaculture. This project focuses on the latest developments in the HAUCS mobile sensing platform and field deployment. A novel rigid Kirigami-based robotic extension subsystem was created to expand the functionality of the HAUCS platform. The primary objective of this design was to limit the surface area of an extender arm on the drone during flight operations and minimize the in-flight drag. By utilizing a novel combination of shape memory polymer (SMP) and nitinol to extend and retrieve the sensing arm, the structure was able to conserve energy while operating under varying environmental conditions.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014324
- Subject Headings
- Aquaculture, Sensors, Robotics
- Format
- Document (PDF)
- Title
- THE IMPACT OF COVID-19 ON DUAL ENROLLMENT INCLUDING ACCESS, EQUITY, AND LEARNING ENVIRONMENT: LESSONS LEARNED FROM THE SECONDARY AND POST-SECONDARY SCHOOL STAFF AND ADMINISTRATORS WHO FACILITATE THESE PROGRAMS.
- Creator
- DeRosa, Adam, Floyd, Deborah L., Maslin-Ostrowski, Patricia, Florida Atlantic University, Department of Educational Leadership and Research Methodology, College of Education
- Abstract/Description
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While students are the center of dual enrollment programs, high school counseling professionals, often called guidance counselors, and college/university administrators are vital to the success of these programs. High school guidance counselors coordinate schedules and ensure student awareness, registration, and participation in the program. College/University administrators facilitate dual enrollment partnerships between the school district and the post-secondary institution, guided by...
Show moreWhile students are the center of dual enrollment programs, high school counseling professionals, often called guidance counselors, and college/university administrators are vital to the success of these programs. High school guidance counselors coordinate schedules and ensure student awareness, registration, and participation in the program. College/University administrators facilitate dual enrollment partnerships between the school district and the post-secondary institution, guided by formal articulation agreements. COVID-19 has impacted both secondary and post-secondary school systems. Since dual enrollment is a formal bridge program between these systems, the pandemic may have long-term effects on access, equity, and the learning environment associated with dual enrollment. This case study focused on high school guidance counselors and school district administrators in Broward County, Florida schools as well as the college/university staff and administrators who oversee dual enrollment programs at three post-secondary institutions that offer classes for Broward County students. By collecting the participants’ perceptions of the impact of COVID-19 on dual enrollment programs, this study found out what worked, what did not work, and the lessons learned.
Show less - Date Issued
- 2023
- PURL
- http://purl.flvc.org/fau/fd/FA00014302
- Subject Headings
- Dual enrollment, COVID-19, School management and organization, Education, Higher--Administration
- Format
- Document (PDF)