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- Title
- Trend features and additive feature selection methods for churn models under property and casualty insurance business paradigms.
- Author
- Anderson, Jacob Foster
- Abstract/Description
-
ABSTRACT: The P&C Small Commercial Insurance industry presents a signiαcant policy retention challenge given the presence of independent intermediaries. Current retention models generally follow traditional relational marketing paradigms and therefore do not account for the complexities introduced by the presence of an independent intermediary. Given an anonymous policy dataset consisting of correlated, high-dimensional, and high-cardinality categorical/numeric data; current data mining...
Show moreABSTRACT: The P&C Small Commercial Insurance industry presents a signiαcant policy retention challenge given the presence of independent intermediaries. Current retention models generally follow traditional relational marketing paradigms and therefore do not account for the complexities introduced by the presence of an independent intermediary. Given an anonymous policy dataset consisting of correlated, high-dimensional, and high-cardinality categorical/numeric data; current data mining methods are used to construct a retention model with practical applications. Additionally, predictive features that capture intermediary-related information are engineered and designated as candidate features. Candidate features are selected for αnal model inclusion using various data mining approaches to feature importance measurement and feature selection.
Show less - Date Issued
- 2018.
- Identifier
- 1128024057, WFE0000646
- Format
- Document (PDF)
- Title
- Unlocking "The womb of chaos": freedom and agency in Anna Letitia Barbauld's "A summer evening's meditation".
- Author
- Barcomb, Kyndall Jenee
- Abstract/Description
-
Anna Letitia's "A Summer Evening's Meditation" exhibits a feminine poetics of space that portrays not only the poetic speaker but also the universe itself as distinctly feminine and feminist. This poetics genders the cosmos and permits the poetic speaker to express her longing to explore the universe just as it allows Barbauld to engage in the scientific discourse of astronomy. The speaker herself fulfills her longing as she exercises agency to explore and recreate space in terms of what...
Show moreAnna Letitia's "A Summer Evening's Meditation" exhibits a feminine poetics of space that portrays not only the poetic speaker but also the universe itself as distinctly feminine and feminist. This poetics genders the cosmos and permits the poetic speaker to express her longing to explore the universe just as it allows Barbauld to engage in the scientific discourse of astronomy. The speaker herself fulfills her longing as she exercises agency to explore and recreate space in terms of what Elizabeth Grosz identifies as a "freedom from" constraint or oppression and a "freedom to" respond with action (140). The poem's embracing "freedom to" is a radical move that eliminates the woman's need to attain freedom from an oppressor and instead urges her to perform her freedom through agentic action. Agency, in this sense, produces an embodied female subject and empowered female voice able to contribute to ways of knowing and being. As such, the action of "Meditation" functions metaphorically as a critique of eighteenth-century British culture that reinforced male control over scientific discovery, knowledge production, and agency. Reading Barbauld's "Meditation" through Groszean feminist theory re-envisions the poem as an argument for female freedom in its fullest, freest sense.
Show less - Identifier
- 1128868965, WFE0000647
- Format
- Document (PDF)
- Title
- Environmental DNA detection of invasive lionfish in estuaries of the northern Gulf of Mexico.
- Author
- Brower, Amy L.
- Abstract/Description
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Invasive species are non-native species that pose a threat to current biodiversity, alter the community structure, and disrupt the ecosystem. Invasive species of high concern are in the genus Pterois, commonly known as lionfish. These species were introduced to the Western Atlantic Ocean and today can be found all throughout the Northern Gulf of Mexico. Lionfish have been recently observed in estuaries even though they are not traditionally euryhaline species. However, confirming presence of...
Show moreInvasive species are non-native species that pose a threat to current biodiversity, alter the community structure, and disrupt the ecosystem. Invasive species of high concern are in the genus Pterois, commonly known as lionfish. These species were introduced to the Western Atlantic Ocean and today can be found all throughout the Northern Gulf of Mexico. Lionfish have been recently observed in estuaries even though they are not traditionally euryhaline species. However, confirming presence of a particular fish in estuarine environments can be costly in terms of resources and can be difficult due to environmental conditions and fishing methods required. The purpose of this study was to detect the presence of lionfish throughout river systems and estuarine environments of the Northern Gulf Coast using environmental DNA (eDNA). Six locations in the Northern Gulf of Mexico were sampled seasonally: The Mobile Delta, Escambia Bay, Blackwater Bay, Perdido Bay, Pensacola Bay and Perdido Key. Results show that lionfish were present in each of the sampled estuarine environments and river systems in the Northern Gulf of Mexico during the course of this study. This information can be used to aid in management techniques for estuaries that are home to commercially and ecologically important species.
Show less - Identifier
- 1128883118, WFE0000648
- Format
- Document (PDF)
- Title
- The Impact of gestures on the misinformation effect over the short and long term.
- Author
- D'Angelo, Kristen Paige
- Abstract/Description
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The misinformation effect occurs when inaccurate post-event information affects a person's memory of the original event. Studies of the misinformation effect typically focus on verbal information, but gestures may be even more misleading. The purpose of the current research was to compare the potential of gestural and verbal information to mislead witnesses. We also addressed the limited research on gestural misinformation by having a longer delay before questioning than is typically used. In...
Show moreThe misinformation effect occurs when inaccurate post-event information affects a person's memory of the original event. Studies of the misinformation effect typically focus on verbal information, but gestures may be even more misleading. The purpose of the current research was to compare the potential of gestural and verbal information to mislead witnesses. We also addressed the limited research on gestural misinformation by having a longer delay before questioning than is typically used. In Experiment 1, participants watched a video of a robbery, then answered a set of video recorded open-ended questions that contained misleading gestural information. The three questions that led to the highest rates of misinformed responses were used in Experiment 2. In Experiment 2, participants viewed the same crime, then received video recorded questions in one of three conditions: gestural misinformation, verbal misinformation, or no misinformation (control). Additionally, we varied the delay before recall with either a short (5 minutes) or a long (2 days) delay. We found verbal misinformation led to the highest rate of misinformed responses, and gestural misinformation was not significantly different from the control. The long delay led to significantly more unrelated errors, but not more misled errors.
Show less - Identifier
- 1129014167, WFE0000652
- Format
- Document (PDF)
- Title
- Investigating the impact of genetic factors on gut microbiota composition in drosophila melanogaster.
- Author
- Duty, Khursana Khusandjanovna
- Abstract/Description
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Gut microbiota is the community of microbes residing in the intestinal tract. The balance of this diverse microbial community ties to a number of health benefits. In the last decade, studies have shown its influences in neurological outcomes, such as mood, behavior, and certain neurological disorders (Sampson & Mazmanian, 2015). It is unclear whether microbial composition is acquired through various exposures throughout life or somehow controlled by the host's genetic makeup. This research...
Show moreGut microbiota is the community of microbes residing in the intestinal tract. The balance of this diverse microbial community ties to a number of health benefits. In the last decade, studies have shown its influences in neurological outcomes, such as mood, behavior, and certain neurological disorders (Sampson & Mazmanian, 2015). It is unclear whether microbial composition is acquired through various exposures throughout life or somehow controlled by the host's genetic makeup. This research examines whether the host's genotype plays a role in shaping the microbial community using the fruit fly Drosophila melanogaster. This is a simple model that shares similar cellular function and tissue organization with the human. Many genes associated with the disease in humans are also found in Drosophila, such as pink1 (mutation associated with Parkinson's disease in humans) and psn (mutation associated with Alzheimer's disease in humans) genes. The objective of this research is (1) to examine whether the wild type gut microbiota differs from that of the pink1 and psn flies; (2) determine whether restoring partial psn activity in psn flies restores microbiota composition to that of the wild type flies. Results show no clear evidence that genotype has effects on the composition and/or diversity of the fly gut microbiota. Additionally, one cannot restore the microbiota in the mutant fly by simply providing the lost gene functions, at least in the example of the psn gene.
Show less - Identifier
- 1129014543, WFE0000653
- Format
- Document (PDF)
- Title
- The steamer Columbia: recreating the life history of a Pensacola sidewheeler.
- Author
- Dvorscak, Christopher Kevin
- Abstract/Description
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In March of 2013, faculty and students from the University of West Florida discovered an unknown shipwreck in the Blackwater River. After multiple seasons of investigation and intensive historical research, the shipwreck is determined to be the sidewheel steamer Columbia, of Pensacola. It was built in 1900 by the W. B. Wright Company, towed lumber, and functioned as an excursion vessel. A fire of unknown origin caused it to burn to the waterline and sink on March 13, 1911. This project...
Show moreIn March of 2013, faculty and students from the University of West Florida discovered an unknown shipwreck in the Blackwater River. After multiple seasons of investigation and intensive historical research, the shipwreck is determined to be the sidewheel steamer Columbia, of Pensacola. It was built in 1900 by the W. B. Wright Company, towed lumber, and functioned as an excursion vessel. A fire of unknown origin caused it to burn to the waterline and sink on March 13, 1911. This project focuses on the discovery and investigation of Columbia, describes the life history of the vessel and the region in which it functioned, and provides convincing evidence to confirm its identity.
Show less - Identifier
- 1129014911, WFE0000654
- 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
- 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
- Mapping colonial strategies: a comparison of British and Spanish Pensacola.
- Author
- James, Cody B.
- Abstract/Description
-
When interpreted alongside written documentary evidence, cartography informs a view of how colonists directed expansion across the landscape. The qualities and content of maps illuminate significant details about their culture of origin; the attributes captured and omitted in cartography can shed light on the content considered relevant at the time of a map creation. For this research, a comparison between Spanish and British colonial maps from mid-18th-century Pensacola reveals a varied...
Show moreWhen interpreted alongside written documentary evidence, cartography informs a view of how colonists directed expansion across the landscape. The qualities and content of maps illuminate significant details about their culture of origin; the attributes captured and omitted in cartography can shed light on the content considered relevant at the time of a map creation. For this research, a comparison between Spanish and British colonial maps from mid-18th-century Pensacola reveals a varied assemblage of attributes, accuracy, detail, and scale that portray modest development for the First Spanish and rapid, organized expansion in the subsequent British period. Using historic maps, two divergent modes, and experiences of colonization can be traced, revealing how environment, socioeconomics, and relations with native peoples influenced the settlement of Pensacola's frontier.
Show less - Identifier
- 1129043933, WFE0000659
- Format
- Document (PDF)
- Title
- Overshadowed: history, public engagement, and conflict archaeology at Florida's natural bridge.
- Author
- Johnston, Janene Whitley
- Abstract/Description
-
The Civil War Battle of Natural Bridge was fought within miles of Tallahassee, Florida, in March of 1865. The site, which is now the Natural Bridge Battlefield Historic State Park, was the subject of a historical and archaeological investigation incorporating documentary evidence, metal detection survey, trench excavations, LiDAR, and firearms identification analysis. The survey was conducted with the help of a wide range of volunteers and community stakeholders including students, members of...
Show moreThe Civil War Battle of Natural Bridge was fought within miles of Tallahassee, Florida, in March of 1865. The site, which is now the Natural Bridge Battlefield Historic State Park, was the subject of a historical and archaeological investigation incorporating documentary evidence, metal detection survey, trench excavations, LiDAR, and firearms identification analysis. The survey was conducted with the help of a wide range of volunteers and community stakeholders including students, members of Florida State Park Service, the local archaeological society, and Civil War reenactors. The results from the survey are being utilized to provide an updated analysis of the conflict which demonstrates how the Confederate forces expertly utilized the landscape to their tactical advantage. Additionally, this project can be used as a guide for on-site interpretation or future research involving the recent acquisition of the remainder of the battlefield.
Show less - Identifier
- 1129044081, WFE0000660
- 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
- The eternal return of the gothic: Anne Bannerman's "Prophetess of the oracle of seam".
- Author
- Kundrotas, Kimberly
- Abstract/Description
-
Anne Bannerman's "The Prophetess of the Oracle of Seäm" has not been studied as thoroughly as her most well-known poem, "The Dark Ladie." Indeed, none of the critical work on Bannerman to this point has focused exclusively on "Prophetess," the second poem in Bannerman's critically-maligned Tales of Superstition and Chivalry. This paper offers a standalone study of Bannerman's "Prophetess," analyzing the poem as an exemplar of Deleuzian eternal return. More specifically, it focuses on the...
Show moreAnne Bannerman's "The Prophetess of the Oracle of Seäm" has not been studied as thoroughly as her most well-known poem, "The Dark Ladie." Indeed, none of the critical work on Bannerman to this point has focused exclusively on "Prophetess," the second poem in Bannerman's critically-maligned Tales of Superstition and Chivalry. This paper offers a standalone study of Bannerman's "Prophetess," analyzing the poem as an exemplar of Deleuzian eternal return. More specifically, it focuses on the manner in which "Prophetess" enacts two key Deleuzian ideas, repetition and fundamental encounter, thereby opening up the possibility of a uniquely Gothic epistemology that problematizes the Enlightenment insistence on clarity and revelation.
Show less - Identifier
- 1129457279, WFE0000663
- Format
- Document (PDF)
- Title
- Sneaker song.
- Author
- Nelson, Samantha Jo
- Abstract/Description
-
Curtis is running from something, running as fast as he can away from a danger that only he can sense. He can't stop, because if he does it will catch up to him. He is starting to remember how he got where he is, and the only way he can find his way back to reality is through those memories. Curtis is not a monster, he knows that face, but his world collides with other people--and in those moments it becomes clear that Curtis is unaware of the world around him. Sneaker Song examines what it...
Show moreCurtis is running from something, running as fast as he can away from a danger that only he can sense. He can't stop, because if he does it will catch up to him. He is starting to remember how he got where he is, and the only way he can find his way back to reality is through those memories. Curtis is not a monster, he knows that face, but his world collides with other people--and in those moments it becomes clear that Curtis is unaware of the world around him. Sneaker Song examines what it means to be Curtis, what it means to run from the things that have shaped you. Using both close third person and first person perspectives, this story follows Curtis and how he came to end up in a dumpster covered in his own blood, running from his father and the past that keeps him separated from reality.
Show less - Identifier
- 1129598117, WFE0000665
- Format
- Document (PDF)
- Title
- The toxicity of heteronormativity and its impact on queer Japanese women.
- Author
- Neville, Hannah
- Abstract/Description
-
Queer Japanese women do not hold power in their own country. Using Fabienne Darling-Wolf's "Women and New Men: Negotiating Masculinity in the Japanese Media" as a starting point, I investigate the reasoning behind the imbalance of power in Japanese culture. As a result of an Eastern country with Western influences, Japan still oppresses their women and does not give them as much freedom as men, and the country's heteronormative standards heavily favor the men in terms of flexibility. This...
Show moreQueer Japanese women do not hold power in their own country. Using Fabienne Darling-Wolf's "Women and New Men: Negotiating Masculinity in the Japanese Media" as a starting point, I investigate the reasoning behind the imbalance of power in Japanese culture. As a result of an Eastern country with Western influences, Japan still oppresses their women and does not give them as much freedom as men, and the country's heteronormative standards heavily favor the men in terms of flexibility. This project investigates cultural influences along with queer theory and poses solutions in hopes to eradicate the toxic implications that a patriarchal society surrounds queer Japanese women.
Show less - Identifier
- 1129598178, WFE0000666
- Format
- Document (PDF)
- Title
- Microplastics in sandy environments in the Florida Keys and the Panhandle of Florida and ingestion by sea cucumbers and sand dollars.
- Author
- Plee, Tara Ashley
- Abstract/Description
-
Microplastic pollution is an increasing problem in the marine environment. This study had five research objectives: establish if seagrass habitats are accumulating more microplastics compared to sandy habits in the Florida Keys; determine if there are microplastics present in sea cucumbers in the Florida Keys; determine the number of microplastics in Pensacola Beach sediment; determine the number of microplastics in St. Joseph Bay sediment; determine if there are microplastics present in sand...
Show moreMicroplastic pollution is an increasing problem in the marine environment. This study had five research objectives: establish if seagrass habitats are accumulating more microplastics compared to sandy habits in the Florida Keys; determine if there are microplastics present in sea cucumbers in the Florida Keys; determine the number of microplastics in Pensacola Beach sediment; determine the number of microplastics in St. Joseph Bay sediment; determine if there are microplastics present in sand dollars in the panhandle of Florida; and conduct a laboratory experiment on the sand dollar Mellita tenuis to determine if it is selecting for microplastics. Microplastics were extracted from samples using a saturated CaCl2 solution and visual examination. Both seagrass beds and sandy areas in the Florida Keys contained microplastics. Sediment near Pensacola Beach and in St. Joseph Bay contained microplastics. Sea cucumbers collected in the Florida Keys and sand dollars collected in the panhandle of Florida had microplastics as part of their gut content. In the laboratory, M. tenuis ingested microbeads in slightly lower proportions compared to surrounding sediment. Both sea cucumbers and sand dollars may make useful animals for monitoring sandy environments for microplastics pollution.
Show less - Identifier
- 1129598452, WFE0000667
- Format
- Document (PDF)
- Title
- Home organization and adaptive behavior in children with and without autism spectrum disorder.
- Author
- Ramey, Arielle S.
- Abstract/Description
-
A chaotic home environment, marked by disorganization, noise, and a lack of routine, has negative associations with language development, social competence, and executive functioning. This study investigated the possible association between chaotic homes and adaptive behaviors, or behaviors that allow independent functioning, in typically developing children and those diagnosed with autism spectrum disorder (ASD). This is particularly important because research has found children with ASD...
Show moreA chaotic home environment, marked by disorganization, noise, and a lack of routine, has negative associations with language development, social competence, and executive functioning. This study investigated the possible association between chaotic homes and adaptive behaviors, or behaviors that allow independent functioning, in typically developing children and those diagnosed with autism spectrum disorder (ASD). This is particularly important because research has found children with ASD have difficulties with adaptive functioning in their environment. Identifying factors in the home environment that may exacerbate these behaviors is the main purpose of this study. Data were collected from 251 primary caregivers, and the results of a mediation analysis suggest that those with ASD exhibited significantly lower adaptive behavior than typically developing children. A significant indirect effect through home chaos, as revealed by a 95% bootstrap confidence interval, suggested those with ASD experienced more household chaos than typically developing children, which influenced their lower adaptive behavior scores. Reports of more chaotic environments were negatively associated with adaptive behavior in both samples. That is, higher levels of household chaos were associated with lower reports of adaptive behavior. This research provides insights into the complex relationship between the home environment and child behavior.
Show less - Identifier
- 1129599177, WFE0000670
- Format
- Document (PDF)
- Title
- Antioxidant mechanisms and bioactivity of phenolic compunds found in Dioscorea Bulbifera.
- Author
- Rees, Patricia Elizabeth
- Abstract/Description
-
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
- Sexual dimorphism in coronis scolopendra: differential opsin expression using the transcriptome of the eye.
- Author
- Vaccaro, Katherine Mae
- Abstract/Description
-
Stomatopods possess one of the most complex visual systems in the animal kingdom. Coronis scolopendra, a spearing lysiosquilloid stomatopod, exhibits extreme sexual color dimorphism; males are a light sandy brown while females are a dark olive brown. Here, the transcriptomes of the eyes of three male and three female C. scolopendra were sequenced, assembled, and compared to determine if sexual dimorphism plays a role in the opsins expressed in this species. While no differential gene...
Show moreStomatopods possess one of the most complex visual systems in the animal kingdom. Coronis scolopendra, a spearing lysiosquilloid stomatopod, exhibits extreme sexual color dimorphism; males are a light sandy brown while females are a dark olive brown. Here, the transcriptomes of the eyes of three male and three female C. scolopendra were sequenced, assembled, and compared to determine if sexual dimorphism plays a role in the opsins expressed in this species. While no differential gene expression was detected, two putatively ultraviolet-sensitive opsins were detected, a first for C. scolopendra and potentially the rest of superfamily Lysiosquilloidea. In addition to the detection of ultraviolet opsins, the rest of the C. scolopendra eye transcriptome was characterized, increasing the number of opsins known to this species.
Show less - Identifier
- 1130060577, WFE0000678
- Format
- Document (PDF)
- Title
- Promoting delay of antibiotic treatment by framing collective identity: three studies.
- Author
- Sonnier, Rachel Elizabeth
- Abstract/Description
-
Antibiotic resistance will render current antibiotics ineffective in the future unless individuals dramatically curtail their use, posing a social dilemma in which short-term individual interests are at odds with the collective good. Research has found that priming collective identity increases cooperation in social dilemmas (Van Lange, Joireman, Parks, & Van Dijk, 2013). In three studies, participants were randomly assigned into a collective (interdependent or intergenerational) or neutral...
Show moreAntibiotic resistance will render current antibiotics ineffective in the future unless individuals dramatically curtail their use, posing a social dilemma in which short-term individual interests are at odds with the collective good. Research has found that priming collective identity increases cooperation in social dilemmas (Van Lange, Joireman, Parks, & Van Dijk, 2013). In three studies, participants were randomly assigned into a collective (interdependent or intergenerational) or neutral condition. Participants then read a vignette (Rönnerstrand & Andersson Sundell, 2015) and chose how many days they would be willing to delay antibiotic treatment. The third study added a fourth baseline (information-only) condition. Study 1 used text to prime undergraduates (N = 162), while Study 2 (N = 192) used YouTube video primes. There were no significant differences on willingness to delay treatment in the first two studies. Vyond videos on antibiotics were used in Study 3 (N = 575) to study willingness to delay in a more diverse sample recruited from MTurk. While Study 3 also found no significant differences in delay, participants in the collective conditions did report feeling more responsible for the collective good than those in the neutral and information-only condition.
Show less - Identifier
- 1130059337, WFE0000675
- 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
-
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)