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Pages
- Title
- Interview with Evelyn and Charles Johnson.
- Creator
- Johnson, Evelyn, Johnson, Charles
- Abstract/Description
-
The Johnsons were interviewed in relation to their aunt and great aunt respectively, Edna Pearce Lockett. She served as the third female legislator in the state of Florida while operating one of the largest cattle ranches in the state.
- Date Issued
- 2007
- PURL
- http://purl.flvc.org/fau/fd/FA00007878_set
- Subject Headings
- Oral histories --Florida
- Format
- Set of related objects
- Title
- Letter from Lord Barrington, March 1, 1770.
- Creator
- Barrington, Lord
- Abstract/Description
-
A handwritten letter from Lord Barrington to other unnamed lords, regarding various matters including a reference to the American colonies
- PURL
- http://purl.flvc.org/fau/fd/fauwdlb1f30a_p
- Format
- Set of related objects
- Title
- RESVERATROL-INSPIRED BRIDGED BICYCLIC COMPOUNDS: CHARACTERIZING A NOVEL ANTIEPILEPTIC DRUG CLASS.
- Creator
- Stilley, Samantha E., Dawson-Scully, Kenneth, Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
- Abstract/Description
-
Epilepsy is a widely prevalent disease within the United States. It is estimated that about 1.2% of the total American population has active epilepsy, a condition of the brain that causes seizures. These seizures are marked by chemical alterations in neuronal firing that can cause abnormal behavior, sensations, muscle spasms, and loss of consciousness. Although the prevalence of seizures and epilepsy is high, effective treatments are limited and fail to provide effective treatment for nearly...
Show moreEpilepsy is a widely prevalent disease within the United States. It is estimated that about 1.2% of the total American population has active epilepsy, a condition of the brain that causes seizures. These seizures are marked by chemical alterations in neuronal firing that can cause abnormal behavior, sensations, muscle spasms, and loss of consciousness. Although the prevalence of seizures and epilepsy is high, effective treatments are limited and fail to provide effective treatment for nearly one-third of adult epileptic patients. Here, I conclude results of successful screening of novel compounds that can ameliorate seizures using an electroshock assay to examine seizure susceptibility and duration in C. elegans. The use of this assay provides an excellent platform for novel antiepileptic drug (AED) discovery efficiently. Literature shows Resveratrol, a natural product from plants, provides neuroprotective effects in various model organisms and therefore, is an excellent candidate for a molecule that has never been related to seizure. However, it is easily metabolized, being a flat and planar molecule. Our research group has collaboratively identified a novel bicyclic bridge molecule derived from the scaffolding of two resveratrol molecules we named Resveramorph (RVM). We also used the candidate approach to test a number of Resveramorph analogs on this assay to find the analog with highest efficacy. The various molecules characterized with their efficacy for seizure-like behavior after an electroshock have helped elucidate the mechanism of action and the RVMs physical target to give us greater insight into this potential family of AEDs.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014072
- Subject Headings
- Anticonvulsants, Epilepsy, Drug development, Caenorhabditis elegans
- Format
- Document (PDF)
- Title
- REVISITING THE COMPARATIVE ASSESSMENT OF MUNICIPAL WASTEWATER DISPOSAL METHODS IN SOUTHEAST FLORIDA.
- Creator
- Conboy, Kelley, Bloetscher, Frederick, Florida Atlantic University, Department of Civil, Environmental and Geomatics Engineering, College of Engineering and Computer Science
- Abstract/Description
-
A comparative risk assessment of wastewater disposal methods in southeast Florida has only been performed once and it was over 20 years ago. Since then, methods has changed and research have been developed. This study follows the methods used in the 2000 study, and assesses the following disposal methods: ocean outfalls, deep injection wells, surface water discharge, reuse for non-potable applications, indirect potable reuse, and direct potable reuse. This assessment assembled a team of...
Show moreA comparative risk assessment of wastewater disposal methods in southeast Florida has only been performed once and it was over 20 years ago. Since then, methods has changed and research have been developed. This study follows the methods used in the 2000 study, and assesses the following disposal methods: ocean outfalls, deep injection wells, surface water discharge, reuse for non-potable applications, indirect potable reuse, and direct potable reuse. This assessment assembled a team of qualified experts to complete a modified delphi survey to assess the human risks of wastewater disposal methods. Using the delphi results in a Bayesian Assessment Model, this assessment found that deep injection well and direct potable reuse were the disposal methods with the least risk.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014068
- Subject Headings
- Sewage disposal--Florida, Wastewater, Sewage--Management
- Format
- Document (PDF)
- Title
- Embodied Biological Computers: Closing The Loop on Sensorimotor Integration of Dexterous Robotic Hands.
- Creator
- Ades, Craig, Engeberg, Erik D., Florida Atlantic University, Department of Ocean and Mechanical Engineering, College of Engineering and Computer Science
- Abstract/Description
-
The sensation of touch is an integral part of using our hands. As different researchers work toward the restoration of afferent sensation in prosthetic hands, it becomes urgent to better understand how an artificial hand’s afferent inputs are affected by the efferent muscular outputs, and vice-versa. Current methods of neuroprosthetic research have many regulatory hurdles, time, cost, and associated risk to the patient. To circumvent these hurdles, we developed a non-invasive, closed-loop (CL...
Show moreThe sensation of touch is an integral part of using our hands. As different researchers work toward the restoration of afferent sensation in prosthetic hands, it becomes urgent to better understand how an artificial hand’s afferent inputs are affected by the efferent muscular outputs, and vice-versa. Current methods of neuroprosthetic research have many regulatory hurdles, time, cost, and associated risk to the patient. To circumvent these hurdles, we developed a non-invasive, closed-loop (CL) neuroprosthetic research platform, integrating artificial tactile signals from an artificial hand with biomimetically-stimulated biological neuronal networks (BNNs) cultured in a multielectrode array (MEA) chamber. These living embodied biological computers (EBCs) can provide a non-invasive alternative for investigating invasive neuroprosthetic interfaces. With them we can explore a variety of control techniques, tactile sensation encoding methods, and neural decoding methods to increase the rate of research in this area with minimal regulatory approval, greatly reduced cost and time, and no risk to the patients. In the first stage of this integration, our EBC was programmed to embody neuronal spiking from spontaneously active “efferent” receptive fields in cultured BNNs as intentional signals for movement. Bursts were transferred to a robotic hand and initiated a tapping motion of the index finger laid in proximity to a surface. Contact elicited artificial sensations, which were registered by a biotac tactile sensor array fit to the robotic fingertip.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014092
- Subject Headings
- Artificial hands, Neuroprostheses, Neurotechnology (Bioengineering), Robotics
- Format
- Document (PDF)
- Title
- FAMILY CAREGIVING DURING TRANSITIONAL CARE: AN ETHNOGRAPHIC EXPLORATION OF THAI-ISAN FAMILY CAREGIVERS PROVIDING CARE FOR SURVIVING STROKE OLDER ADULTS.
- Creator
- Thiengtham, Supavadee, Chiang-Hanisko, Lenny, Florida Atlantic University, Christine E. Lynn College of Nursing, Christine E. Lynn College of Nursing
- Abstract/Description
-
Providing family caregiving during transitional care of a stroke patient is the most challenging for family caregivers. This is because of the shift in the care environment from a hospital with an organizational culture to a home with a traditional culture. Yet, cultural influences on family caregiving during transitional care are not well studied. This ethnographic study aims to describe the family caregiving of older Thai-Isan stroke survivors through the transition from hospital to home....
Show moreProviding family caregiving during transitional care of a stroke patient is the most challenging for family caregivers. This is because of the shift in the care environment from a hospital with an organizational culture to a home with a traditional culture. Yet, cultural influences on family caregiving during transitional care are not well studied. This ethnographic study aims to describe the family caregiving of older Thai-Isan stroke survivors through the transition from hospital to home. This study employs Lininger's culture care theory (CCT) as the theoretical framework and utilizes the ethnonursing method to discover cultural knowledge. Data was collected through a demographic questionnaire, participant observations, and a semi-structured interview. Data was analyzed using the Four Phases of the Data Analysis Enabler. Fifteen dyads of older stroke patients and their family caregivers were recruited following the inclusion and exclusion criteria. The research settings included Srinagarind Hospital units and key informants’ homes in a Thai-Isan community.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014114
- Subject Headings
- Caregivers, Thai ʻĪsān, Stroke, Transcultural nursing
- Format
- Document (PDF)
- Title
- GENETIC STRUCTURE OF SHALLOW AND MESOPHOTIC POPULATIONS OF A DOMINANT, BROADCAST SPAWNING CORAL, MONTASTRAEA CAVERNOSA, IN THE GULF OF MEXICO AND WESTERN CARIBBEAN.
- Creator
- Sturm, Alexis B., Voss, Joshua D., Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
- Abstract/Description
-
Coral reef ecosystems across the Tropical Western Atlantic, are rapidly degrading due to a combination of anthropogenic stressors including coastal development, overfishing, and climate change-induced coral bleaching and disease outbreaks. Despite this general pattern, certain reef ecosystems are less exposed to these stressors due to a lack of/or distance from coastal development and/or their depth. These characteristics protect these coral reef ecosystems from rapid degradation and these...
Show moreCoral reef ecosystems across the Tropical Western Atlantic, are rapidly degrading due to a combination of anthropogenic stressors including coastal development, overfishing, and climate change-induced coral bleaching and disease outbreaks. Despite this general pattern, certain reef ecosystems are less exposed to these stressors due to a lack of/or distance from coastal development and/or their depth. These characteristics protect these coral reef ecosystems from rapid degradation and these coral populations potentially serve as important refugia. Developing an understanding of the connectivity dynamics among these refugia and to more degraded reefs is critical to developing networks of marine protected areas and management to ensure the persistence and recovery of coral metapopulations. In particular, increased research focus has been placed on mesophotic coral ecosystems (MCEs, 30-150 m) which are deeper and more buffered from anthropogenic stressors than shallow reefs (<30 m). A collection of hypotheses known as the Deep Reef Refugia Hypothesis surmises that MCEs may serve as larval sources to reseed shallow coral populations following a disturbance-driven decline. This dissertation research focuses on quantifying the population genetic structure of a dominant, depthgeneralist, coral species, Montastraea cavernosa, across previously understudied shallow and mesophotic reefs throughout the Gulf of Mexico and Western Caribbean to quantify the refugia potential of these reefs and characterize their roles in the regional coral metapopulation. Chapter 1 provides a review of the ecology and population genetic connectivity dynamics of shallow and mesophotic coral populations in the Tropical Western Atlantic.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014054
- Subject Headings
- Montastraea, Corals, Mexico, Gulf of, Caribbean Area
- Format
- Document (PDF)
- Title
- JUSTICE ON DEMAND: A QUALITATIVE CASE STUDY OF VIRGINIA ARTRIP SNYDER.
- Creator
- Alvarez, Maria I., Cesar, Gabriel T., Florida Atlantic University, School of Criminology and Criminal Justice, College of Social Work and Criminal Justice
- Abstract/Description
-
This thesis is a single ethnographic qualitative case study on gender, focusing on the parallels between gender and historical inequities of social, economic, political, and power oppression. The study metaphorically examines the systolic and diastolic reading of approximately 100 years of injustices. Virginia Artrip Snyder, the subject of this study, is a woman, practitioner, and advocate. The timeframe is from the 1920s to the present. The researcher examined a variety of samples, which...
Show moreThis thesis is a single ethnographic qualitative case study on gender, focusing on the parallels between gender and historical inequities of social, economic, political, and power oppression. The study metaphorically examines the systolic and diastolic reading of approximately 100 years of injustices. Virginia Artrip Snyder, the subject of this study, is a woman, practitioner, and advocate. The timeframe is from the 1920s to the present. The researcher examined a variety of samples, which included Virginia's documents, files, news clippings, books, letters, community involvement, and the criminal justice system. Virginia's family donated the data to the Spady Museum in Delray, Florida, and Florida Atlantic University (FAU), Virginia’s alma mater. The results demonstrated that Virginia was a victim of both domestic violence and the criminal justice system. Virginia sharpened the saw by educating and serving, thus demonstrating that one person can make a difference. As activist George Santayana said, "Those who do not remember the past are condemned to repeat it."
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014052
- Subject Headings
- Snyder, Virginia Artrip, 1920-2017, Feminist criminology
- Format
- Document (PDF)
- Title
- Prediction of Radiobiological Indices and Equivalent Uniform Dose in Lung Cancer Radiation Therapy using an Artificial Neural Network.
- Creator
- Pudasaini, Mukunda Prasad, Leventouri, Theodora, Muhammad, Wazir, Florida Atlantic University, Department of Physics, Charles E. Schmidt College of Science
- Abstract/Description
-
In radiotherapy, radiobiological indices tumor control probability (TCP), normal tissue complication probability (NTCP), and equivalent uniform dose (EUD) are computed by analytical models. These models are rarely employed to rank and optimize treatment plans even though radiobiological indices weights more compared to dosimetric indices to reflect treatment goal. The objective of this study is to predict TCP, NTCP and EUDs for lung cancer radiotherapy treatment plans using an artificial...
Show moreIn radiotherapy, radiobiological indices tumor control probability (TCP), normal tissue complication probability (NTCP), and equivalent uniform dose (EUD) are computed by analytical models. These models are rarely employed to rank and optimize treatment plans even though radiobiological indices weights more compared to dosimetric indices to reflect treatment goal. The objective of this study is to predict TCP, NTCP and EUDs for lung cancer radiotherapy treatment plans using an artificial neural network (ANN). A total of 100 lung cancer patients’ treatment plans were selected for this study. Normal tissue complication probability (NTCP) of organs at risk (OARs) i.e., esophagus, spinal cord, heart and contralateral lung and tumor control probability (TCP) of treatment target volume (i.e., tumor) were calculated by the equivalent uniform dose (EUD) model. TCP/NTCP pairing with corresponding EUD are used individually as outputs for the neural network. The inputs for ANN are planning target volume (PTV), treatment modality, tumor location, prescribed dose, number of fractions, mean dose to PTV, gender, age, and mean doses to the OARs. The ANN is based on Levenberg-Marquardt algorithm with one hidden layer having 13 inputs and 2 outputs. 70% of the data was used for training, 15% for validation and 15% for testing the ANN. Our ANN model predicted TCP and EUD with correlation coefficient of 0.99 for training, 0.96 for validation, and 0.94 for testing. In NTCP and EUD prediction, averages of correlation coefficients are 0.94 for training, 0.89 for validation and 0.84 for testing. The maximum mean squared error (MSE) for the ANN is 0.025 in predicting the NTCP and EUD of heart. Our results show that an ANN model can be used with high discriminatory power to predict the radiobiological indices for lung cancer treatment plans.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014064
- Subject Headings
- Lungs--Cancer--Radiotherapy, Radiobiology, Neural networks (Computer science)
- Format
- Document (PDF)
- Title
- REAL-TIME HIGHWAY TRAFFIC FLOW AND ACCIDENT SEVERITY PREDICTION IN VEHICULAR NETWORKS USING DISTRIBUTED MACHINE LEARNING AND BIG DATA ANALYSIS.
- Creator
- Alnami, Hani Mohammed, Mahgoub, Imadeldin, Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
-
In recent years, Florida State recorded thousands of abnormal traffic flows on highways that were caused by traffic incidents. Highway traffic congestion costed the US economy 101 billion dollars in 2020. Therefore, it is imperative to develop effective real-time traffic flow prediction schemes to mitigate the impact of traffic congestion. In this dissertation, we utilized real-life highway segment-based traffic and incident data obtained from Florida Department of Transportation (FDOT) for...
Show moreIn recent years, Florida State recorded thousands of abnormal traffic flows on highways that were caused by traffic incidents. Highway traffic congestion costed the US economy 101 billion dollars in 2020. Therefore, it is imperative to develop effective real-time traffic flow prediction schemes to mitigate the impact of traffic congestion. In this dissertation, we utilized real-life highway segment-based traffic and incident data obtained from Florida Department of Transportation (FDOT) for real-time incident prediction. We used eight years of FDOT real-life traffic and incident data for Florida I-95 highway to build prediction models for traffic accident severity. Accurate severity prediction is beneficial for responders since it allows the emergency center to dispatch the right number of vehicles without wasting additional resources.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014089
- Subject Headings
- Traffic flow, Traffic accidents, Machine learning, Big data, Traffic estimation
- Format
- Document (PDF)
- Title
- PATH PLANNING FOR THE HYBRID AERIAL UNDERWATER ROBOTIC SYSTEM.
- Creator
- Davis, Anthony C., Ouyang, Bing, Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
-
Marine food chains are highly stressed by aggressive fishing practices and environmental damage. Aquaculture has increasingly become a source of seafood which spares the deleterious impact to wild fisheries, but it requires continuous water quality data to successfully grow and harvest fish. Aerial drones have great potential to monitor large areas quickly and efficiently. The Hybrid Aerial Underwater Robotic System (HAUCS) is a swarm of unmanned aerial vehicles (UAVs) and underwater...
Show moreMarine food chains are highly stressed by aggressive fishing practices and environmental damage. Aquaculture has increasingly become a source of seafood which spares the deleterious impact to wild fisheries, but it requires continuous water quality data to successfully grow and harvest fish. Aerial drones have great potential to monitor large areas quickly and efficiently. The Hybrid Aerial Underwater Robotic System (HAUCS) is a swarm of unmanned aerial vehicles (UAVs) and underwater measurement devices designed to collect water quality data of aquaculture ponds. The routing of drones to cover each fish pond on an aquaculture farm can be reduced to the Vehicle Routing Problem (VRP). A dataset is created to simulate the distribution of ponds on a farm and is used to assess the HAUCS Path Planning Algorithm (HPP). Its performance is compared with the Google Linear Optimization Package (GLOP) and a Graph Attention Model (GAM) for routing around the simulated farms. The three methods are then implemented on a team of waterproof drones and experimentally verified at Southern Illinois University’s (SIU) Aquaculture Research Center. GLOP and GAM are demonstrated to be efficient path planning methods for small farms, while HPP is likely to be more suited to large farms. HAUCS shows great value as a future direction for intelligent aquaculture, but issues with obstacle avoidance and robust waterproofing need to be addressed before commercialization. The future of aquaculture promises more integrated and sustainable operations by mimicking natural systems and leveraging deeper understandings of biology.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014108
- Subject Headings
- Drone aircraft, Drones, Aquaculture
- Format
- Document (PDF)
- Title
- PATTERNS AND TRENDS THAT IMPACT TEACHER ATTRITION AND RETENTION: A RETROSPECTIVE STUDY.
- Creator
- Wittel, Kerry A., Dukes, Charles, Florida Atlantic University, Department of Exceptional Student Education, College of Education
- Abstract/Description
-
This study intended to examine factors potentially contributing to teacher retention and attrition at the local (district) level and the costs associated with this teacher movement. A secondary data set from a large urban school district in the southern United States served as the unit of analysis for this study. Demographic data on 25,724 teachers, from 2010-2019 were used in the analysis. A correlation, multiple regression, chi-square, and a demographic frequency distribution were run for...
Show moreThis study intended to examine factors potentially contributing to teacher retention and attrition at the local (district) level and the costs associated with this teacher movement. A secondary data set from a large urban school district in the southern United States served as the unit of analysis for this study. Demographic data on 25,724 teachers, from 2010-2019 were used in the analysis. A correlation, multiple regression, chi-square, and a demographic frequency distribution were run for each of the three criterion variables: teacher job attrition, teacher school attrition, and teacher retention. The predictor variables used in the analysis were gender, certification, total number of years teaching, and race/ethnicity. Student demographic data from the district were used as a comparison to teacher data from the same school district. Results indicated trends particular in teacher movement, whether job or school, impact the number of years a teacher stays in teaching. Special education certified teachers appear to be the most vulnerable to teacher movement. Teacher retention (leaving) averages over 17% each year over 10 years, costing $36 million dollars annually or over $367 million dollars over 10 years. At that rate, this district could experience a complete turnover of staff in only 5.7 years. Latino teachers are underrepresented in this teacher population and are out of proportion with the majority Latino student population. Black teachers change jobs and schools at statistically significantly higher rates than their White or Latino peers. National data are not longitudinal, and do not track teacher job movement, only teacher school movement. Current local data are critical for educational agencies, administrators, and decision makers to combat the teacher shortage. Findings from this study may inform the field about factors, trends, or patterns that contribute to teacher retention and attrition.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014062
- Subject Headings
- Teacher turnover, Teacher attrition, Teacher retention
- Format
- Document (PDF)
- Title
- MEASUREMENT, ANALYSIS, CLASSIFICATION AND DETECTION OF GUNSHOT AND GUNSHOT-LIKE SOUNDS.
- Creator
- Baliram, Rajesh Singh, Zhuang, Hanqi, Florida Atlantic University, Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science
- Abstract/Description
-
The recent uptick in senseless shootings in otherwise quiet and relatively safe environments is powerful evidence of the need, now more than ever, to reduce these occurrences. Artificial intelligence (AI) can play a significant role in deterring individuals from attempting these acts of violence. The installation of audio sensors can assist in the proper surveillance of surroundings linked to public safety, which is the first step toward AI-driven surveillance. With the increasing popularity...
Show moreThe recent uptick in senseless shootings in otherwise quiet and relatively safe environments is powerful evidence of the need, now more than ever, to reduce these occurrences. Artificial intelligence (AI) can play a significant role in deterring individuals from attempting these acts of violence. The installation of audio sensors can assist in the proper surveillance of surroundings linked to public safety, which is the first step toward AI-driven surveillance. With the increasing popularity of machine learning (ML) processes, systems are being developed and optimized to assist personnel in highly dangerous situations. In addition to saving innocent lives, supporting the capture of the responsible criminals is part of the AI algorithm that can be hosted in acoustic gunshot detection systems (AGDSs). Although there has been some speculation that these AGDSs produce a higher false positive rate (FPR) than reported in their specifications, optimizing the dataset used for the model’s training and testing will enhance its performance. This dissertation proposes a new gunshot-like sound database that can be incorporated into a dataset for improved training and testing of a ML gunshot detection model. Reduction of the sample bias (that is, a bias in ML caused by an incomplete database) is achievable. The Mel frequency cepstral coefficient (MFCC) feature extraction process was utilized in this research. The uniform manifold and projection (UMAP) algorithm revealed that the MFCCs of this newly created database were the closest sounds to a gunshot sound, as compared to other gunshot-like sounds reported in literature. The UMAP algorithm reinforced the outcome derived from the calculation of the distances of the centroids of various gunshot-like sounds in MFCCs’ clusters. Further research was conducted into the feature reduction aspect of the gunshot detection ML model. Reducing a feature set to a minimum, while also maintaining a high accuracy rate, is a key parameter of a highly efficient model. Therefore, it is necessary for field deployed ML applications to be computationally light weight and highly efficient. Building on the discoveries of this research can lead to the development of highly efficient gunshot detection models.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014110
- Subject Headings
- Firearms, Sound, Detectors, Machine learning
- Format
- Document (PDF)
- Title
- LONGITUDINAL PREDICTORS OF POPULARITY AND UNPOPULARITY IN MIDDLE CHILDHOOD AND EARLY ADOLESCENCE.
- Creator
- Altman, Robert L., Laursen, Brett, Florida Atlantic University, Department of Psychology, Charles E. Schmidt College of Science
- Abstract/Description
-
As children enter middle childhood, they become increasing focused on navigating the peer system, which provides an acute awareness of the social hierarchy and their place in it (Gottman & Mettetal, 1986; Parker & Gottman, 1989). Some children even prioritize attaining social status over maintaining friendships (LaFontana & Cillessen, 2010). Status matters because it describes an individual’s ability to compete for and control both physical and social resources (Hawley, 1999). Previous...
Show moreAs children enter middle childhood, they become increasing focused on navigating the peer system, which provides an acute awareness of the social hierarchy and their place in it (Gottman & Mettetal, 1986; Parker & Gottman, 1989). Some children even prioritize attaining social status over maintaining friendships (LaFontana & Cillessen, 2010). Status matters because it describes an individual’s ability to compete for and control both physical and social resources (Hawley, 1999). Previous studies have identified two forms of affective regard, separate from the peer group and behavioral reputation, that predict popularity and unpopularity: acceptance and rejection (Marks et al., 2021). However, their relative importance has been unclear because previous studies have not included both in the same model and because most studies have been concurrent, not longitudinal. Affective markers of peer regard and behavioral markers of peer group reputation are moderately correlated, making it difficult to draw conclusions from separate studies of each. Studies which incorporate measures of each are few and limited in scope. The current study was designed to examine the origins of popularity and unpopularity by disentangling affective regard from behavioral reputation using a sample of 292 students enrolled in grades 4 to 6 (ages 9-13) of a university-affiliated school.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014044
- Subject Headings
- Popularity, Adolescence, Childhood
- Format
- Document (PDF)
- Title
- NOT SO STRAIGHT FORWARD: SWIMMING, MANEUVERING, AND FEEDING KINEMATICS OF THE SCALLOPED HAMMERHEAD (SPHYRNA LEWINI).
- Creator
- Heerdegen, Ivan, Porter, Marianne E., Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
- Abstract/Description
-
Many studies on shark swimming have examined kinematic variables along straight tracks or under controlled flow speeds in flumes, but there is less known about unsteady swimming during maneuvering or feeding. Sharks may adjust their speed, undulatory kinematics, or body curvature to accommodate different actions. This study quantified variations in kinematics during straight swimming, maneuvering, and feeding in scalloped hammerhead sharks (Sphyrna lewini). I obtained video of three juvenile...
Show moreMany studies on shark swimming have examined kinematic variables along straight tracks or under controlled flow speeds in flumes, but there is less known about unsteady swimming during maneuvering or feeding. Sharks may adjust their speed, undulatory kinematics, or body curvature to accommodate different actions. This study quantified variations in kinematics during straight swimming, maneuvering, and feeding in scalloped hammerhead sharks (Sphyrna lewini). I obtained video of three juvenile scalloped hammerheads, developed an ethogram assessing three behavioral categories, and tracked points along the body’s midline. I found that velocity was lower during feeding compared to maneuvering and straight swimming, while body curvature increased during feeding turns but decreased with increasing velocity. These data will provide insight into kinematic variations in hammerhead sharks across ontogeny and among behaviors, ultimately expanding on the relationship between form and function. This also provides context for varying behaviors and trends within the movement ecology paradigm.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014079
- Subject Headings
- Kinematics, Hammerhead sharks
- Format
- Document (PDF)
- Title
- ORIENTATION OF BLACKTIP SHARKS (CARCHARHINUS LIMBATUS) TO UNDERWATER SOUND.
- Creator
- Sullivan, Caroline, Kajiura, Stephen, Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
- Abstract/Description
-
Sharks respond to low frequency pulsed sounds but are documented to lack the capacity to detect these sounds beyond the acoustic near field. The purpose of my study was to quantify the distance blacktip sharks (Carcharhinus limbatus) oriented to sound stimuli, and determine if responses occurred in the far field. Using an aerial drone and underwater speaker, C. limbatus were filmed responding to sound stimuli (100 – 200 Hz; 200 – 400 Hz; and 400 – 800 Hz). Upon detection, C. limbatus elicited...
Show moreSharks respond to low frequency pulsed sounds but are documented to lack the capacity to detect these sounds beyond the acoustic near field. The purpose of my study was to quantify the distance blacktip sharks (Carcharhinus limbatus) oriented to sound stimuli, and determine if responses occurred in the far field. Using an aerial drone and underwater speaker, C. limbatus were filmed responding to sound stimuli (100 – 200 Hz; 200 – 400 Hz; and 400 – 800 Hz). Upon detection, C. limbatus elicited a 20 – 160° turn from the speaker, and rapidly swam away. Sharks responded to all frequencies from at least 62 m, and 71.6% of all responses (n = 209) occurred in the far field. This indicates that blacktip sharks can detect and orient away from a sound stimulus at distances that extend beyond the acoustic near field, which suggests that they are not detecting sound using the inner ear otoconia.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014104
- Subject Headings
- Blacktip shark, Carcharhinus limbatus, Underwater sound
- Format
- Document (PDF)
- Title
- DEVELOPMENT OF A MICROFLUIDIC DEVICE FOR EXOSOME ISOLATION IN POINT-OF-CARE SETTINGS.
- Creator
- Ramnauth, Natasha, Waseem Asghar, Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
- Abstract/Description
-
Exosomes have gained recognition in cancer diagnostics and therapeutics. Most exosome isolation methods are time-consuming, costly and require bulky equipment, rendering them unsuitable for point-of-care (POC) settings. Microfluidics can be the key to solving these challenges. Here, we employ the development of a double filtration microfluidic device that can rapidly isolate exosomes in POC settings. The device can efficiently isolate exosomes from just 100 uL of plasma within 50 minutes. The...
Show moreExosomes have gained recognition in cancer diagnostics and therapeutics. Most exosome isolation methods are time-consuming, costly and require bulky equipment, rendering them unsuitable for point-of-care (POC) settings. Microfluidics can be the key to solving these challenges. Here, we employ the development of a double filtration microfluidic device that can rapidly isolate exosomes in POC settings. The device can efficiently isolate exosomes from just 100 uL of plasma within 50 minutes. The device was compared against Polyethylene glycol (PEG) based precipitation, and findings show that both methods yield comparable exosome sizes and purity, but the device can detect exosomal miRNA earlier than PEG. Finally, a comparative analysis of membrane filters with exosomes collected from pore sizes 15 nm and 30 nm showed a similarity in exosome size and miRNA expressions, with significantly increased sample purity. These findings suggest that this device has potential in POC settings.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014071
- Subject Headings
- Microfluidic devices, Exosomes, Point-of-care testing
- Format
- Document (PDF)
- Title
- THE RELATIONSHIP BETWEEN ADVERSE CHILDHOOD EXPERIENCES, RESILIENCE, AND PHYSICAL AND MENTAL HEALTH AMONG ADULTS IN SAUDI ARABIA.
- Creator
- Alanbry, Toqa, Smith, Marlaine, Florida Atlantic University, Christine E. Lynn College of Nursing, Christine E. Lynn College of Nursing
- Abstract/Description
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Adverse childhood experiences (ACEs), involving abuse, neglect, and violence exposure, have been connected to undesirable physical and mental health consequences across the life span. With regards to the range of factors that moderates the impact of ACEs on life course health, resilience is suggested as a quality that can lead to better health and quality of life outcomes. The purpose of the study was to examine the relationship between adult-reported ACEs, resilience, and mental and physical...
Show moreAdverse childhood experiences (ACEs), involving abuse, neglect, and violence exposure, have been connected to undesirable physical and mental health consequences across the life span. With regards to the range of factors that moderates the impact of ACEs on life course health, resilience is suggested as a quality that can lead to better health and quality of life outcomes. The purpose of the study was to examine the relationship between adult-reported ACEs, resilience, and mental and physical health in Saudi Arabia. The study was a predictive/correlational design. A total of 328 participants completed the online questionnaire through (Qualtrics). The independent variables were ACEs and resilience while the dependent variable was physical and mental health. The variables were measured by: 1) The ACE International Questionnaire (ACE-IQ). 2) The Physical and Mental Health Checklist. 3) The Connor-Davidson Resilience Scale -25 (CD-RISC-25). Descriptive statics showed that 97% of participants were medically diagnosed with some health illnesses and they were under the age of 45 years old.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014107
- Subject Headings
- Adverse Childhood Experiences, Mental Health, Resilience (Personality trait), Saudi Arabia
- Format
- Document (PDF)
- Title
- THE UNITARY CARING LIVED EXPERIENCE OF UNCERTAINTY AMONG FAMILY CAREGIVERS OF PERSONS WITH A STROKE DURING THE HOSPITAL STAY IN SAUDI ARABIA.
- Creator
- Alselami, Seham Eid, Butcher, Howard K., Florida Atlantic University, Christine E. Lynn College of Nursing, Christine E. Lynn College of Nursing
- Abstract/Description
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Stroke is a major health problem in Saudi Arabia that impacts the health outcomes of adults and elderly persons. No matter its severity, stroke is a stressful life event not only for the survivors but their family caregivers as well. Uncertainty is one of the major problems facing family caregivers caring for persons with a stroke. Uncertainty affects overall health outcomes and the quality of life of family caregivers caring for persons with strokes. Current research has not yet identified...
Show moreStroke is a major health problem in Saudi Arabia that impacts the health outcomes of adults and elderly persons. No matter its severity, stroke is a stressful life event not only for the survivors but their family caregivers as well. Uncertainty is one of the major problems facing family caregivers caring for persons with a stroke. Uncertainty affects overall health outcomes and the quality of life of family caregivers caring for persons with strokes. Current research has not yet identified the meaning of the uncertainty of family caregivers of persons with strokes during hospitalization in Saudi Arabia. The purpose of this study was to gain an in-depth understanding of the meaning of uncertainty experienced by family caregivers of persons in the hospital who have survived strokes. This study used a phenomenological design. Data were collected through in-depth face-to-face and online semi-structured interviews with 15 family caregivers using openended questions. Participants were recruited from inpatient medical units and stroke care units in multi acute care hospitals in Saudi Arabia. The interviews were recorded, transcribed verbatim, translated, and analyzed using the hermeneutic phenomenological unitary caring research method. NVivo software (Version 12) was used to manage the qualitative data.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014047
- Subject Headings
- Stroke, Caregivers, Nursing, Saudi Arabia
- Format
- Document (PDF)
- Title
- THE INFLUENCE OF NURSE-CARING FACTORS ON PATIENT SAFETY CULTURE.
- Creator
- Alfahd, Hanan, Longo, Joy, Florida Atlantic University, Christine E. Lynn College of Nursing, Christine E. Lynn College of Nursing
- Abstract/Description
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The purpose of this study is to examine the influence of technology perception and caring nurse-patient interactions on patient safety culture from the perception of critical care nurses in Saudi Arabia and to assess the mediating role of compassion fatigue on the relationship between technology perception and patient safety culture and between caring nurse-patient interactions and patient safety culture. A cross-sectional study was conducted in July and August 2022, in three hospitals...
Show moreThe purpose of this study is to examine the influence of technology perception and caring nurse-patient interactions on patient safety culture from the perception of critical care nurses in Saudi Arabia and to assess the mediating role of compassion fatigue on the relationship between technology perception and patient safety culture and between caring nurse-patient interactions and patient safety culture. A cross-sectional study was conducted in July and August 2022, in three hospitals located in the eastern province of Saudi Arabia. A convenience, purposive sample of critical care nurses who provides direct care to patients in critical care units, stepdown, and emergency departments were recruited. one hundred and eighty-three nurse participated in this study with an overall response rate of 51.69%. Nurse participants completed the Survey of Patient Safety Culture for Hospitals, the Technological Influences Questionnaire subscale of the Caring Attributes, Professional Self-Concept, and Technological Influences scale, the Caring Nurse-Patient Interactions scale, and the Compassion Fatigue subscale from the ProQOL scale which contained the Secondary Traumatic Stress and Burnout subscales. Descriptive statistics and a linear regression model were used to analyze the research data. A significant relationship was found between technology perception and patient safety culture and between caring nurse patient interaction and patient safety culture. There is no significant mediating role of the Secondary Traumatic Stress on the relationship between technology perception and patient safety culture and between caring nurse patient interaction and patient safety culture. The burnout has a full mediating effect on the relationship between technology perception and patient safety culture and a partial mediating effect on the relationship between caring nurse patient interaction and patient safety culture. The research findings have established the foundation of the relationship between nursing caring factors (perception of technology and caring nurse-patient interaction) and patient safety culture. However, more research is needed to understand the direct effect of these relationships on patient outcomes.
Show less - Date Issued
- 2022
- PURL
- http://purl.flvc.org/fau/fd/FA00014063
- Subject Headings
- Intensive care nursing, Saudi Arabia, Nurse-Patient Relations, Patient Safety, Compassion Fatigue
- Format
- Document (PDF)
