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- Title
- "Foolish men that prayse gin eke t'envy": armes, armor, and eroticism in Spenser's The Faerie Queene.
- Author
- Desimone, Noah Ryan
- Abstract/Description
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In Edmund Spenser's The Faerie Queene, scenes of armament and disarmament allegorize the way that idealized and degenerate forms of masculinity are forged. Armor, in Spenser, is less a physical than a psychological shield. Donned at the wrong time, the knights become cruel, untrustworthy, and apathetic. Removed at inappropriate junctures, they descend into lust, avarice, and gluttony. Spenser's epic models the self-fashioning by which gentleman could come to embody the harmony of Venus and...
Show moreIn Edmund Spenser's The Faerie Queene, scenes of armament and disarmament allegorize the way that idealized and degenerate forms of masculinity are forged. Armor, in Spenser, is less a physical than a psychological shield. Donned at the wrong time, the knights become cruel, untrustworthy, and apathetic. Removed at inappropriate junctures, they descend into lust, avarice, and gluttony. Spenser's epic models the self-fashioning by which gentleman could come to embody the harmony of Venus and Mars. Empedocles' principle of love and war--the idea that eros and strife must come together for the generation of life to occur--is central to Spenser's idea of exemplary masculinity as well as to his political and artistic vision of harmony. The epic models a paradigm of courtly masculinity that places a premium on intense emotional relationships between men, even as it divorces eros from the realms of martial honor and patriarchalism. Since Spenser's vision of self-fashioned masculinity depends upon his understanding of court culture and the woman presiding over it, I conclude my thesis by looking at the epic's critique of Elizabeth I's use of romantic tropes and erotic pageantry
Show less - Identifier
- 1296388542, WFE0000781
- Format
- Document (PDF)
- Title
- Abandon all ships!: Economic changes and their relation to intentional vessel abandonment at the Shields Point Cove.
- Author
- Roy, Michael Dillon
- Abstract/Description
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The site of an intentionally abandoned vessel will differ greatly from the site of a shipwreck lost unintentionally. Relatedly, the processes of site development will also differ greatly between these two types of sites. This research illustrates these differences by studying historical contexts of four abandoned vessels located in a cove known as Shields Point found on the Blackwater River in Santa Rosa, Florida. Previous models of shipwreck site development are adapted to include sites of...
Show moreThe site of an intentionally abandoned vessel will differ greatly from the site of a shipwreck lost unintentionally. Relatedly, the processes of site development will also differ greatly between these two types of sites. This research illustrates these differences by studying historical contexts of four abandoned vessels located in a cove known as Shields Point found on the Blackwater River in Santa Rosa, Florida. Previous models of shipwreck site development are adapted to include sites of intentionally abandoned vessels.
Show less - Date Issued
- 2020, 2020
- Identifier
- 1220930685, WFE0000731
- Format
- Document (PDF)
- Title
- Affordable bankruptcy.
- Author
- Mobley, Michael Adrian
- Abstract/Description
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Affordable Bankruptcy is a collection of short stories, flash fiction, and microfiction that explores familial and personal dilemmas. Largely, the dilemmas that the characters in each piece experience remained unsolved as a means by which to access and explore experience rather than offering simple resolutions. These characters start out complicated, and their experiences only leave them more so. The collection takes the form of two halves: "Compunction" and "Revulsion." Within each section,...
Show moreAffordable Bankruptcy is a collection of short stories, flash fiction, and microfiction that explores familial and personal dilemmas. Largely, the dilemmas that the characters in each piece experience remained unsolved as a means by which to access and explore experience rather than offering simple resolutions. These characters start out complicated, and their experiences only leave them more so. The collection takes the form of two halves: "Compunction" and "Revulsion." Within each section, thematic conversations take place between small works with insular content. "Buck Granderson's Pond" and "Debride" are two such works, and the conversation between these two pieces centers on the things fathers teach their sons, exploring the ways in which sons reject and accept their father's lessons. The rest of the collection places other pieces in similar conversations, offering various viewpoints on thematic material that serves as a throughline for stories with vastly varying subject matters.
Show less - Identifier
- 1129044594, WFE0000661
- Format
- Document (PDF)
- Title
- An analysis of pivot strategies to maintain sparsity in the LU decomposition of IPDG method applied to the Helmholtz Equation.
- Author
- Severance, Ryan Samuel
- Abstract/Description
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In recent years, the interior penalty discontinuous Galerkin (IPDG) method has appeared in literature as an efficient and stable method for approximating the Helmholtz equation. LU decomposition has then been used to solve the linear system formed by the IPDG method. However, research has shown that the LU decomposition causes fill-in of the sparse structure of the global matrix. This talk addresses the application of several pivot strategies to the global matrix before the LU decomposition,...
Show moreIn recent years, the interior penalty discontinuous Galerkin (IPDG) method has appeared in literature as an efficient and stable method for approximating the Helmholtz equation. LU decomposition has then been used to solve the linear system formed by the IPDG method. However, research has shown that the LU decomposition causes fill-in of the sparse structure of the global matrix. This talk addresses the application of several pivot strategies to the global matrix before the LU decomposition, in order to assess if this fill-in can be reduced. Numerical experiments are presented to demonstrate that pivot strategies did reduce fill-in when applying the LU decomposition.
Show less - Identifier
- 1130059112, WFE0000674
- Format
- Document (PDF)
- Title
- Another brick in the wall: a pedagogical approach to excavations at a 19th-century brickyard.
- Author
- Dietrich, Emily Elizabeth
- Abstract/Description
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Incorporating archaeology within the high school curricula fosters an interest in archaeology and site preservation. The Milton High School Archaeology Project provides students the opportunity to experience and participate in archaeological research. At a 19th-century brickyard, students learn anthropology and their local history through hands-on excavations. Through the use of Project-Based Learning (PBL), students conducted archaeological and historical research and presented their work in...
Show moreIncorporating archaeology within the high school curricula fosters an interest in archaeology and site preservation. The Milton High School Archaeology Project provides students the opportunity to experience and participate in archaeological research. At a 19th-century brickyard, students learn anthropology and their local history through hands-on excavations. Through the use of Project-Based Learning (PBL), students conducted archaeological and historical research and presented their work in the form of a museum exhibit at the Florida Public Archaeological Network's Destination Archaeology Resources Center museum for the public and their parents. The Milton High School Archaeology Project provides an example of how archaeology can easily and effectively be integrated into high school educational standards. Quantitative and qualitative data collected throughout the 2016-2017 school year shows how archaeology education leads to increased awareness of and appreciation for heritage sites.
Show less - Date Issued
- 2020, 2020
- Identifier
- 1233055172, WFE0000744
- Format
- Document (PDF)
- Title
- Antioxidant mechanisms and bioactivity of phenolic compunds found in Dioscorea Bulbifera.
- Author
- Rees, Patricia Elizabeth
- Abstract/Description
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Accumulation of oxidative damage has been implicated in numerous diseases bringing antioxidant investigations and plant phenolics to the forefront of medicinal research. The species Dioscorea bulbifera has been used in both traditional and modern medicinal systems and has good overall antioxidant capacity. Yet little work has been done to assess which chemical components may contribute to this action. The goals of this study were to investigate the antioxidant activity of individual phenolic...
Show moreAccumulation of oxidative damage has been implicated in numerous diseases bringing antioxidant investigations and plant phenolics to the forefront of medicinal research. The species Dioscorea bulbifera has been used in both traditional and modern medicinal systems and has good overall antioxidant capacity. Yet little work has been done to assess which chemical components may contribute to this action. The goals of this study were to investigate the antioxidant activity of individual phenolic compounds in the plant D. bulbifera; to compare the in vitro antioxidant assays with human cell studies; for this information to contribute to future investigations in treating human disease. Methanolic extracts of the D. bulbifera bulbils were analyzed using HPLC-MS/MS and NMR. Positively identified compounds were used for in vitro antioxidant assays (Ferric Reducing Antioxidant Power (FRAP), iron chelation, and Oxygen Radical Absorbance Capacity (ORAC), followed by human cell assays. Several phenolic species were tentatively identified. (+)-catechin was positively identified and used for further testing. In vitro assays showed potential for electron transfer antioxidant activity but not iron chelation. The hydrogen transfer mechanisms could not be assessed due to assay complications. Cell assays also suffered complications rendering them inconclusive.
Show less - Identifier
- 1129599262, WFE0000671
- Format
- Document (PDF)
- Title
- Arthur Penn and the doors of Avalon.
- Author
- Andrews, Zoe
- Abstract/Description
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Fifteen-year-old Arthur Penn has had a rough week. Not only has her ghostly companion, Merlin, been disappearing and keeping more secrets than before, but the girl Arthur saved over the winter holiday from a dangerous encounter has attempted to take her own life. Unable to ignore her own guilt and sense of responsibility towards the girl, Mel-Rose, Arthur decides to visit her in the hospital, even if Mel-Rose can't respond. Only moments after arriving, a sudden blackout at the hospital is the...
Show moreFifteen-year-old Arthur Penn has had a rough week. Not only has her ghostly companion, Merlin, been disappearing and keeping more secrets than before, but the girl Arthur saved over the winter holiday from a dangerous encounter has attempted to take her own life. Unable to ignore her own guilt and sense of responsibility towards the girl, Mel-Rose, Arthur decides to visit her in the hospital, even if Mel-Rose can't respond. Only moments after arriving, a sudden blackout at the hospital is the perfect cover for a newly awoken Mel-Rose to lead Arthur to the hospital's basement. Arthur follows, only to discover that not only has Merlin possessed MelRose's body, but that something called a breach has opened in the hospital's basement, and Merlin needs Arthur's help fighting off the gremlins and plants which have appeared in order to close it. When all is said and done, Merlin finally explains what is going on to Arthur. Not only is she the reincarnation of the fabled King Arthur, but it is up to her and Merlin to shut the doors of Avalon before more magic spills into the world, polluting and mutating the world as they know it.
Show less - Date Issued
- 2019, 2019
- Identifier
- 1152882631, WFE0000687
- Format
- Document (PDF)
- Title
- Assessment of bancs and streambank erosion rates in the northwest Florida Panhandle.
- Author
- Finch, Bryce Douglas
- Abstract/Description
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A previous study performed in the Northwest Florida Panhandle found the bank assessment of non-point source consequences of sediment (BANCS) model to be a relatively poor predictor of streambank erosion rates. Concern for whether these errors were related to how the project was constructed prompted the need for additional research. Some of the presumed errors were associated with the size of the study area and sites' exposure to extreme weather events during the study period. This study aims...
Show moreA previous study performed in the Northwest Florida Panhandle found the bank assessment of non-point source consequences of sediment (BANCS) model to be a relatively poor predictor of streambank erosion rates. Concern for whether these errors were related to how the project was constructed prompted the need for additional research. Some of the presumed errors were associated with the size of the study area and sites' exposure to extreme weather events during the study period. This study aims to utilize the BANCS model across a smaller study area than previously practiced with a focus on identifying specific flow events and drainage watersheds that are primarily undeveloped. Flow events were identified through the use of constructed gages and watersheds were verified with aerial imagery. Erosion incurred at the 18 study sites selected was measured over a given year following identified flood and bankfull events. These practices resulted in an improvement of BANCS' ability to predict streambank erosion rates. In particular, the bank erosion hazard index (BEHI) demonstrates strong relationships with erosion rates when plotted independently. The findings of the study indicate that a better understanding of return intervals of specific flow events, such as bankfull and floods, would enhance the capability to predict streambank erosion.
Show less - Date Issued
- 2020, 2020
- Identifier
- 1232475100, WFE0000738
- Format
- Document (PDF)
- Title
- Barriers and benefits of implementing athletic training programs on Native American reservations.
- Author
- Little, Marisha Ruth
- Abstract/Description
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Social determinants of health refer to the environment surrounding an individual and how it affects quality of life and plays a role in the presence of health disparities. A key factor to eliminate disparities is to increase the number of health care professionals who belong to a minority population (Institute of Medicine, 2003). The National Athletic Trainers' Association reported there were only 221 members who were Native American in 2017. There is also no data showing athletic training...
Show moreSocial determinants of health refer to the environment surrounding an individual and how it affects quality of life and plays a role in the presence of health disparities. A key factor to eliminate disparities is to increase the number of health care professionals who belong to a minority population (Institute of Medicine, 2003). The National Athletic Trainers' Association reported there were only 221 members who were Native American in 2017. There is also no data showing athletic training programs established on American Indian reservations. This study investigated the barriers and benefits of implementing athletic training programs on Native American reservations from the perspectives of Native American athletic trainers. Results showed implementing athletic training programs would show improvements to the healthcare system, students' lives, and to the community. Barriers of implementing athletic training programs would result from barriers shared with the athletic training profession, barriers from the healthcare system, socioecological, geographic, and socioeconomic barriers related to the reservation. The participants believe athletic training will impact the reservation in a positive manner through improvements made to the reservation health care system, to individual students, and the community. More data needs to be completed to support healthcare innovations for the Native American population.
Show less - Date Issued
- 2021
- Identifier
- 1293876442, WFE0000759
- Format
- Document (PDF)
- Title
- Beyond the guacamole: a history of how drug organizations became involved in the avocado industry.
- Author
- Rudo, Jessica Lynne
- Abstract/Description
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The avocado has picked up several nicknames, but its most recent is "Green Gold." The avocado has blossomed into a multi-billion-dollar-a-year industry, with 77 percent of the world's avocados imported into the United States. From avocado toast to Superbowl guacamole, Americans hunger for the fruit labeled a superfood. After President Bill Clinton signed NAFTA, the border was open to avocados from Mexico. The Mexican state of Michoacán was the only state permitted to ship to the United States...
Show moreThe avocado has picked up several nicknames, but its most recent is "Green Gold." The avocado has blossomed into a multi-billion-dollar-a-year industry, with 77 percent of the world's avocados imported into the United States. From avocado toast to Superbowl guacamole, Americans hunger for the fruit labeled a superfood. After President Bill Clinton signed NAFTA, the border was open to avocados from Mexico. The Mexican state of Michoacán was the only state permitted to ship to the United States because they met all the required sanitary conditions. The booming avocado business increased the Michoacán farmer's profit from two and a half pesos per kilo to eighty pesos. Not surprisingly, the increased revenue attracted a growing workforce. It also drew the attention of local drug cartels. But why would a successful drug cartel need to encroach into other markets? The short answer is that cartel involvement in the avocado industry is an unintended consequence of the fight against drugs. The avocado has become a cash crop for both legal and illegal markets.
Show less - Date Issued
- 2021
- Identifier
- 1293881200, WFE0000762
- Format
- Document (PDF)
- Title
- Bombardier.
- Author
- Glass, Christopher
- Abstract/Description
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Gian is happy with his future. He will be a stonemason like his father, and he is all but betrothed to his neighbor, Giuliana. But in 1551, a fleet of corsairs and Ottoman Turks invades Gozo. Gian loses track of Giuliana in the chaos and shelters with his family behind the walls of the Citadel, where he joins in the island's desperate defense. Defeated and enslaved, most of the Gozitans are sent to the markets of Libya, but Gian is taken by his new master to Angora. There he is raised in...
Show moreGian is happy with his future. He will be a stonemason like his father, and he is all but betrothed to his neighbor, Giuliana. But in 1551, a fleet of corsairs and Ottoman Turks invades Gozo. Gian loses track of Giuliana in the chaos and shelters with his family behind the walls of the Citadel, where he joins in the island's desperate defense. Defeated and enslaved, most of the Gozitans are sent to the markets of Libya, but Gian is taken by his new master to Angora. There he is raised in Islam as a goatherd until he is conscripted through devshirme. After years of training and indoctrination, Gian, now commander of an Ottoman bombard, travels aboard a galley to the Tunisian island of Djerba, recently captured by Christians from Spain, Venice, Genoa, and Malta. After a decisive victory over the Christian fleet, Gian and his comrades encamp on Djerba and besiege the fort. The siege drags into summer, and an idle Gian is already questioning his allegiance to the Turks when he finds Giuliana. Risking his new future in favor of his past, Gian conspires to free Giuliana and escape Djerba, but Giuliana has an agenda of her own.
Show less - Identifier
- 1129015059, WFE0000655
- Format
- Document (PDF)
- Title
- Can delivery modality influence test performance?: comparing traditional and digital formats.
- Author
- Moyer, Gage H.
- Abstract/Description
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This paper presents a mixed group experimental design to examine whether how students take a test within the classroom affects exam performance and test delivery preferences. In this study, I randomly assigned 35 students in a social psychology course to take their first exam in either a paper-based format or an online mode in the same context. Students switched to the alternative format for their second exam. I measured average exam scores, speed of completion, attitudes towards computer...
Show moreThis paper presents a mixed group experimental design to examine whether how students take a test within the classroom affects exam performance and test delivery preferences. In this study, I randomly assigned 35 students in a social psychology course to take their first exam in either a paper-based format or an online mode in the same context. Students switched to the alternative format for their second exam. I measured average exam scores, speed of completion, attitudes towards computer testing, testing anxiety, and modality preference. As predicted, the testing format made no difference in mean test performance on each exam. There also was no majority preference for one modality over the other when given a choice of how students wanted to take the final exam in the class. Format preference was unrelated to testing anxiety or exam performance. However, attitudes towards computer-based testing appear to correlate with modality preference. Therefore, online-based testing modalities do not appear to have any significant disadvantages when compared to paper-based formats and can possibly serve as a convenient, resource saving alternative.
Show less - Date Issued
- 2020, 2020
- Identifier
- 1202267393, WFE0000723
- Format
- Document (PDF)
- Title
- Cemeteries as classrooms: Making archaeology education relevant, accessible, and sustainable.
- Author
- Hines, Rachel Louise
- Abstract/Description
-
Despite promoting K-12 education initiatives for decades, public archaeologists struggle to reach precollegiate audiences due to archaeology's absence in curriculum standards, a lack of qualified archaeology educators, and barriers within the school system. To investigate replicable and accessible methods of archaeology education and to better understand teacher needs and motivations, I created lesson plans which engage high school students in recording and researching historic cemeteries....
Show moreDespite promoting K-12 education initiatives for decades, public archaeologists struggle to reach precollegiate audiences due to archaeology's absence in curriculum standards, a lack of qualified archaeology educators, and barriers within the school system. To investigate replicable and accessible methods of archaeology education and to better understand teacher needs and motivations, I created lesson plans which engage high school students in recording and researching historic cemeteries. Hands-on efforts are often excavation-based and limited by access to professional archaeologists; however, cemetery recording is nondestructive and offers students a chance to participate in project-based learning. Four educators from Santa Rosa County taught the materials to nine classes in Fall 2019 while I evaluated the lessons through surveys, guided observations, and summative interviews. The materials were revised based on results to ensure they are useful and useable. Every participant indicated the lessons are user-friendly, relevant, and meaningful. Administrative support, passionate teachers, and carefully crafted lessons contributed to programmatic success, indicating collaborative efforts from archaeological and educational professionals can produce hands-on archaeology programming that is mutually rewarding.
Show less - Date Issued
- 2020, 2020
- Identifier
- 1201528775, WFE0000707
- Format
- Document (PDF)
- Title
- Challenge-hindrance stressor framework and work-family outcomes: the moderating effects of individual learning goal orientation.
- Author
- Cremeans, Danielle Nicole
- Abstract/Description
-
The challenge-hindrance stressor framework focuses on individuals' appraisal of stressors as challenging or hindering. Most literature focuses on applying the challengehindrance stressor framework to performance outcomes. In contrast, the current study applies the framework to work-family outcomes while also examining the potential moderating effects of individual learning goal orientation (LGO). Ninety-seven participants completed online surveys through Amazon's MTurk. Analyses revealed a...
Show moreThe challenge-hindrance stressor framework focuses on individuals' appraisal of stressors as challenging or hindering. Most literature focuses on applying the challengehindrance stressor framework to performance outcomes. In contrast, the current study applies the framework to work-family outcomes while also examining the potential moderating effects of individual learning goal orientation (LGO). Ninety-seven participants completed online surveys through Amazon's MTurk. Analyses revealed a positive relationship between challenge-related stressors and work-family conflict (WFC) as well as a positive relationship between hindrancerelated stressors and WFC. Furthermore, hindrance-related stressors and LGO interacted to predict WFC. The interaction indicated that the positive relationship between hindrance-related stressors and WFC was stronger at higher levels of LGO. Additionally, a positive relationship was found between LGO and labeling a higher number of ambiguous stressors as challengerelated. This study builds on prior literature by examining individual characteristics that may influence the effects of the challenge-hindrance stressor framework as well as identifying the importance of applying the framework to work-family outcomes. Future research calls for examining the influence of time in the challenge-hindrance stressor framework as well as examining the way individuals with low and high LGO cope differently with stressors and how coping strategies could influence work-family outcomes.
Show less - Date Issued
- 2019, 2019
- Identifier
- 1152892851, WFE0000690
- Format
- Document (PDF)
- Title
- Characterization of calpain activity in response to microplastic exposure in Donax variabilis.
- Author
- Schroeder, Hans Erik
- Abstract/Description
-
Coquina clams (Donax variabilis) are small multicolored bivalve mollusks that inhabit the intertidal zones of various southeastern beaches along the eastern coast of the United States where they are in great abundance and an essential part of the beach ecosystem. Because they are filter-feeders that are exposed to environmental hazards, Donax variabilis populations are a sign of the beach's ecological health. Potentially, this mollusk may be effective as a "canary in a coal mine" if...
Show moreCoquina clams (Donax variabilis) are small multicolored bivalve mollusks that inhabit the intertidal zones of various southeastern beaches along the eastern coast of the United States where they are in great abundance and an essential part of the beach ecosystem. Because they are filter-feeders that are exposed to environmental hazards, Donax variabilis populations are a sign of the beach's ecological health. Potentially, this mollusk may be effective as a "canary in a coal mine" if biological changes are easily measurable that may be sensitive to important environmental changes. One such mechanism are the calpains. Calpains are Ca2+-dependent cysteine proteases that are expressed in nearly all eukaryotes, but have rarely been studied in invertebrates like the Coquina clam. It is well established that calpains are essential to cellular homeostasis and have been implicated in a multitude of cellular functions, such as apoptosis and cellular stress. In recent years, microplastics, plastic particles that range in size but are less than 5mm, have become a serious hazard to the environment. Accumulation of microplastics have only recently been recognized to be harmful to marine organisms that ingest them and cause tissue damage on a cellular and subcellular level that may alter calpain activity. Although Coquina clams are in great abundance on the beaches and their ecological patterns have been studied thoroughly, the cellular and subcellular processes of the Coquina clam have not been studied extensively. Specifically, it is not understood how calpains function under normal conditions or how these molecules would be affected due to large ecological impacts in the form of contaminants like microplastics. It is our contention that Coquina clams can be used as a bioindicator of healthy beaches and aid in assessing the presence or absence of pollutants such as microplastics that can occur in the ecosystem, using cellular and subcellular processing by calpains as a measure.
Show less - Date Issued
- 2019, 2019
- Identifier
- 1153167661, WFE0000699
- Format
- Document (PDF)
- Title
- Characterizing elasmobranchs in Pensacola Bay system using environmental DNA metabarcoding.
- Author
- Hebert, Melissa M.
- Abstract/Description
-
Estuaries are often used as foraging habitats and nursery grounds by many elasmobranch species due to the protection as well as an abundance of nutrients and available prey that estuaries provide. However, identifying essential habitats for elasmobranchs has been a challenge due to frequent migrations of elasmobranchs into estuaries and coastal waters. Therefore, essential habitats for many elasmobranchs have not been identified. Traditional survey methods make it difficult to obtain accurate...
Show moreEstuaries are often used as foraging habitats and nursery grounds by many elasmobranch species due to the protection as well as an abundance of nutrients and available prey that estuaries provide. However, identifying essential habitats for elasmobranchs has been a challenge due to frequent migrations of elasmobranchs into estuaries and coastal waters. Therefore, essential habitats for many elasmobranchs have not been identified. Traditional survey methods make it difficult to obtain accurate results because elasmobranchs are highly mobile; thus the resolution lies with using molecular tools such as environmental DNA (eDNA) metabarcoding. Environmental DNA metabarcoding refers to the identification of multiple species from a single environmental sample using a generalist molecular marker. This molecular tool has shown to represent the biodiversity present in a collected sample and has been more efficient than traditional in situ sampling. Environmental DNA metabarcoding revealed 266 total fish detections from 57 different species with only three elasmobranch species (Rostoraja eglanteria, Hypanus sabinus, Rhinoptera bonasus) being detected. Elasmobranch DNA was primarily detected in spring, with only one detection in both winter and summer and no detections in fall. These results imply that elasmobranchs may not be utilizing the Pensacola Bay System often or they were not present during time of sampling.
Show less - Date Issued
- 2020, 2020
- Identifier
- 1233042127, WFE0000741
- Format
- Document (PDF)
- Title
- Characterizing reef fish in the Gulf of Mexico using environmental DNA metabarcoding.
- Author
- Giraldo-Meneses, Juliana
- Abstract/Description
-
A wide range of environmental pressures and anthropogenic stressors, such as overfishing, climate change, and coastal development, have negatively affected fish communities in the Gulf of Mexico, specifically reef fish inhabiting natural or artificial reefs. Fish communities in the Gulf of Mexico vary both spatially and temporally due to movements in the water column, migrations, and environmental pressures making conventional survey sampling challenging to perform. Conventional methods can...
Show moreA wide range of environmental pressures and anthropogenic stressors, such as overfishing, climate change, and coastal development, have negatively affected fish communities in the Gulf of Mexico, specifically reef fish inhabiting natural or artificial reefs. Fish communities in the Gulf of Mexico vary both spatially and temporally due to movements in the water column, migrations, and environmental pressures making conventional survey sampling challenging to perform. Conventional methods can often be costly, time-consuming and invasive to the target organism. A possible resolution to overcome these challenges to inventory reef fish species lies with environmental DNA (eDNA) metabarcoding. Water samples were collected from artificial and natural reefs in the Gulf of Mexico. The 12s rRNA mitochondrial gene was amplified using elasmobranch and MiFish primers. Only elasmobranch primers were able to provide valuable reads. Amplicon libraries generated by PCR were sequenced using Illumina HiSeq. Environmental DNA metabarcoding revealed 4 reef-associated species out of 12 detected species, the Rough scad (Trachurus lathami), Sand diver (Synodus intermedius), Pearly razorfish (Xyrichtys novacula) and the invasive Lionfish (Pterois spp.). Fish species detections across nine sites were grouped by habitat and IUCN status. Surface and benthic fish detections were grouped by temperature and salinity. A generalized linear model and linear regression were used to test for correlation. This project demonstrates the utility of eDNA and metabarcoding as a valuable tool for characterization of reef fish species in the Gulf of Mexico.
Show less - Identifier
- 1295644282, WFE0000776
- Format
- Document (PDF)
- Title
- Characterizing the effects of atypical antipsychotics on the neutrophil model cell line, PLB-985.
- Author
- Robbs, Emily J.
- Abstract/Description
-
Atypical antipsychotics (AAPs) are a class of drug used to treat several mental diseases like bipolar disorder, obsessive-compulsive disorder, and schizophrenia. However, these substances are also known to cause a rare, yet severe and sometimes fatal syndrome known as neutropenia. Neutropenia (and its more acute form, agranulocytosis) is characterized by a significant decrease in an individual's circulating neutrophils--the most abundant white blood cell. Neutrophils are essential for proper...
Show moreAtypical antipsychotics (AAPs) are a class of drug used to treat several mental diseases like bipolar disorder, obsessive-compulsive disorder, and schizophrenia. However, these substances are also known to cause a rare, yet severe and sometimes fatal syndrome known as neutropenia. Neutropenia (and its more acute form, agranulocytosis) is characterized by a significant decrease in an individual's circulating neutrophils--the most abundant white blood cell. Neutrophils are essential for proper innate immunity, and depletion can result in higher risk of developing life-threatening illnesses. How atypical antipsychotics induce neutropenia is not well-understood, though research is ongoing. In this study, we aim to characterize the effects of four AAPs--clozapine, olanzapine, quetiapine and aripiprazole--on PLB-985 cell viability, as assessed by the XTT Cell Viability Assay. We found that only aripiprazole is able to significantly decrease dPLB-985 cell viability after 48-hour treatment. We hypothesized that aripiprazole's negative effect on cell viability is through its unique mechanism of action as a partial dopamine agonist; however, our results suggest that aripiprazole's effects are independent of dopamine receptor agonism.
Show less - Identifier
- 1294639220, WFE0000774
- Format
- Document (PDF)
- Title
- A climatology of single-day rapid drought cessation events in the southwestern United States.
- Author
- Harris, Emily Pearl
- Abstract/Description
-
Drought is a common and important component of the hydroclimatology of the southwestern USA. However, less attention has been paid to drought termination in the region, especially Rapid Drought Cessation Events (RDCEs). Here, the "Southwest" was defined by drought region using Principal Components Analysis (PCA) of the annual average Palmer Drought Severity Index (PDSI) for all NOAA state climate divisions in the U.S.A. For the Southwest, 765 droughts occurred between 1895 to 2017; 575 (6.2%)...
Show moreDrought is a common and important component of the hydroclimatology of the southwestern USA. However, less attention has been paid to drought termination in the region, especially Rapid Drought Cessation Events (RDCEs). Here, the "Southwest" was defined by drought region using Principal Components Analysis (PCA) of the annual average Palmer Drought Severity Index (PDSI) for all NOAA state climate divisions in the U.S.A. For the Southwest, 765 droughts occurred between 1895 to 2017; 575 (6.2%) of these droughts ended abruptly (for one month's time). Furthermore, 54 (0.6%) of those RDCEs occurred in a single-day. The majority of RDCEs, and single-day RDCEs, occurred in the cool season. Droughts of short (<1 months) and long (>76months) duration were ended by single-day RDCEs. Similarly, RDCEs ended droughts of varying severity, the extreme being a -5.68 (PDSI; November 1951). While there is no significant trend when SD-RDCEs occur, the results showed that most occur in the winter season and most occurring in Arizona. Analyses are in progress to identify the storm type responsible for every occurrence of RDCE and describe the spatiotemporal properties of RDCE and associated storm type.
Show less - Identifier
- 1129015296, WFE0000656
- Format
- Document (PDF)
- Title
- Comparing route learning in drivers using conventional navigation assistance devices and a hypothetical augmented reality system.
- Author
- Yount, Zachary Franklin
- Abstract/Description
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Current trends point towards the development and implementation of augmented reality (AR) navigation assistance systems for drivers. Previous research has found augmented reality can benefit driving performance, but the impact of AR on route learning (spatial knowledge acquisition) has received less attention. The current study used simulated driving scenarios to determine how the type of navigation aid device used (i.e., paper map, electronic map, and AR system) affected driving performance...
Show moreCurrent trends point towards the development and implementation of augmented reality (AR) navigation assistance systems for drivers. Previous research has found augmented reality can benefit driving performance, but the impact of AR on route learning (spatial knowledge acquisition) has received less attention. The current study used simulated driving scenarios to determine how the type of navigation aid device used (i.e., paper map, electronic map, and AR system) affected driving performance and route learning. Route learning was examined at landmark, route, and survey levels. The hypotheses tested were that AR would improve driving performance, but diminish route learning compared to paper map use; that AR would outperform electronic map use in both driving performance and route learning; and that experts and novices would be affected differently. Paper map use resulted in poorer driving performance and greater route learning, but map recognition may be a confounding factor in higher level spatial knowledge acquisition with paper map use. Driving performance and route learning were similar for drivers using the electronic map and AR, but there were differences that suggest drivers have reduced uncertainty and hesitation while using AR to navigate in unfamiliar areas. Differences between expert and novice drivers were not found.
Show less - Date Issued
- 2020, 2020
- Identifier
- 1222213022, WFE0000736
- Format
- Document (PDF)