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- Title
- Preschool Full-Day, Part-Day, or Not at All: Does It Matter for Kindergarten Readiness in the U.S.?.
- Creator
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Paredes Drouet, Carla Maria, Zuilkowski, Stephanie Simmons, Park, Toby J., Phillips, Beth M., Herrington, Carolyn D., Florida State University, College of Education, Department...
Show moreParedes Drouet, Carla Maria, Zuilkowski, Stephanie Simmons, Park, Toby J., Phillips, Beth M., Herrington, Carolyn D., Florida State University, College of Education, Department of Educational Leadership and Policy Studies
Show less - Abstract/Description
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This dissertation addresses the knowledge gap about the dosage feature of preschool programs and its relationship to kindergarten readiness by asking: Does the degree of center-based preschool attendance—more than 20 hours/week (full-day), more than zero and less than 20 hours/week (part-day), or zero hours/week (no attendance)—of 4-year old children in the United States have a discernible effect in mathematics, reading, and socio-emotional tests administered at the beginning of kindergarten?...
Show moreThis dissertation addresses the knowledge gap about the dosage feature of preschool programs and its relationship to kindergarten readiness by asking: Does the degree of center-based preschool attendance—more than 20 hours/week (full-day), more than zero and less than 20 hours/week (part-day), or zero hours/week (no attendance)—of 4-year old children in the United States have a discernible effect in mathematics, reading, and socio-emotional tests administered at the beginning of kindergarten? I used the Early Childhood Longitudinal Study Birth Cohort (ECLS-B) to answer my research question. This high quality probability sample collected a wide range of data on young children and their families rather than assigning them to conditions. In the absence of experimental data, the quasi-experimental design that best fits the research question is a non-equivalent control group. In this design, two treated and an untreated group are compared on pre and posttest data on the same units. To minimize selection bias I first identified critical covariates that matter for selection into treatment and can be reliably measured. Then, I used propensity score analysis to match the treatment and control groups’ pretest scores and observable characteristics before directly comparing their outcomes. Results from this dissertation make evident that preschool level of attendance matters for kindergarten readiness compared no preschool. First, children who attended full-day preschool outperform their peers who did not attend in reading and math test scores at the beginning of kindergarten. Second, children who attended part-day preschool outperform their peers who did not attend in reading, math, and eagerness to learn tests scores at the beginning of kindergarten. However, results show that full-day preschool compared to part-day preschool had no statistically significant effect on cognitive skills, and had negative socio-emotional effects at the start of kindergarten. Children who attended full-day preschool performed the same in reading and math test scores- yet showed less eagerness to learn- compared to their peers who attended part-day preschool. These findings are aligned with existing literature stating that preschool has a positive effect on cognitive outcomes, particularly for low-income groups, and a negative or non-significant effect on socio-motional skills. They build upon and advance this knowledge base by empirically demonstrating the strong academic foundation that all young children develop when exposed to even a small number of hours of preschool per week. These results support the case for investments in our education system’s response that transcend the K-12 oriented approach.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_ParedesDrouet_fsu_0071E_15056
- Format
- Thesis
- Title
- The Synthesis and Characterization of High Refractive Index Lens Material.
- Creator
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Su, Yue, Stiegman, Albert E., Van Winkle, David H., Kennemur, Justin Glenn, Latturner, Susan, Florida State University, College of Arts and Sciences, Department of Chemistry and...
Show moreSu, Yue, Stiegman, Albert E., Van Winkle, David H., Kennemur, Justin Glenn, Latturner, Susan, Florida State University, College of Arts and Sciences, Department of Chemistry and Biochemistry
Show less - Abstract/Description
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High refractive index polymer has always been one of the great interests for their potential in industrial applications. One of the important methods in achieving this goal is to create high cross-linking density network. Though thiol-ene reaction, multi-vinyl monomer and multi-ene monomer joint covalently to form a dense network structure. This dissertation discusses a fundamental way to develop high refractive index polymer through thiol-ebe polymerization. In the first part of this...
Show moreHigh refractive index polymer has always been one of the great interests for their potential in industrial applications. One of the important methods in achieving this goal is to create high cross-linking density network. Though thiol-ene reaction, multi-vinyl monomer and multi-ene monomer joint covalently to form a dense network structure. This dissertation discusses a fundamental way to develop high refractive index polymer through thiol-ebe polymerization. In the first part of this dissertation, multi-vinyl monomers and multi-thiol monomers were synthesized and mixed to make polymers using thermal initiation. Structural characterizations were performed using infrared and NMR. Thermal characterizations were performed using DSC, TGA and DMA. Optical properties like refractive indices and transmission were also measured. The results indicate that among all the phosphine polymers, PVSe-BDTH has the highest refractive index and it is among the highest refractive index organic polymer could achieve. It also has high storage modulus of several GPa. In addition to PVSe-BDTH, PVSe-EDTH is another good candidate though the introduction of EDTH made the material slightly softer. The second part of this dissertation discusses the effects of the introduction of several synthesized additives. An increasing weight percent of additives were added to the in the formation of PMMA polymer and their effects on refractive indices were examined. The third part of this dissertation discusses the positive influence of the introduction of computational method upon guiding the development of our materials. The refractive indices and densities of the previously synthesized monomers and polymers were calculated and compared with the experimental values and proved to be effective. Then the method was applied to several of our potential monomer and polymer targets, by comparing their relative refractive indices the compounds with better anticipated properties were synthesized. The experimental measurements indicate that our combination of method and basis set provide rather accurate prediction on both frequency-dependent polarizabilities and molecular volumes, therefore providing refractive indices and densities that fit our expectations. In addition to these, the calculation method can also predict IR and NMR peaks and provide possible explanation to unknown peaks. Overall, it is a useful tool in our studies in the early stages of product design and property predictions.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Su_fsu_0071E_15401
- Format
- Thesis
- Title
- Synthesis and Characterization of Silica-Coated Iron(II, III) Oxide Magnetic Particles for Potential Application in Glyphosate Detection.
- Creator
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Bernat, Andrea, Rao, Qinchun, Singh, Prashant, Yang, Wei, Florida State University, College of Human Sciences, Department of Nutrition, Food and Exercise Sciences
- Abstract/Description
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The main active ingredient in herbicide formulations on the market today is glyphosate. Glyphosate is applied to the majority of crops in the food industry. However, claims regarding glyphosate's toxicity and role in human diseases, such as cancer, are increasing. Thus, the detection of glyphosate in foods is imperative to ensure consumer safety. To improve the specificity and selectivity of detection, a focus on sample preparation methods to concentrate glyphosate and remove it from the food...
Show moreThe main active ingredient in herbicide formulations on the market today is glyphosate. Glyphosate is applied to the majority of crops in the food industry. However, claims regarding glyphosate's toxicity and role in human diseases, such as cancer, are increasing. Thus, the detection of glyphosate in foods is imperative to ensure consumer safety. To improve the specificity and selectivity of detection, a focus on sample preparation methods to concentrate glyphosate and remove it from the food matrix for next-step detection is crucial. Thus, the objectives of this study were to (1) synthesize and coat Fe3O4 magnetic particles, (2) characterize the magnetic particles to determine the optimal coating concentration, and (3) construct glyphosate-specific molecularly imprinted polymers (GLY-MIPs) with the optimally coated Fe3O4 magnetic particles, which may have the ability to concentrate glyphosate and draw it out of the surrounding matrix for potential glyphosate detection. Iron(II, III) oxide magnetic particles (Fe3O4 MPs) were synthesized via co-precipitation at room temperature (RT). A modified Stöber method was used to coat Fe3O4 MPs with tetraethyl orthosilicate (TEOS). Particle size was determined using dynamic light scattering (DLS). The zeta-potential, the charge that develops at the interface between a solid surface and its liquid medium, was also investigated via DLS measurements. Light microscopy imaging was performed to study particle morphology and aggregation. The effect of temperature and pH on particle precipitation and the attraction of uncoated Fe3O4 MPs and silica-coated Fe3O4 MPs (Fe3O4@SiO2 MPs) to the external magnetic field were investigated to aid in determining the optimal TEOS coating concentration. Glyphosate-imprinted polymers and non-imprinted polymers (NIPs) with Fe3O4@SiO2 MPs as the core were constructed via free radical polymerization (18 h, 60°C). Particle size and zeta-potential of four coated Fe3O4@SiO2 MP samples with TEOS coating concentrations 0.067, 0.34, 1.7, 3.3 mL/g Fe3O4 were obtained, respectively. Fe3O4@SiO2 MPs with TEOS coating concentration 1.7 mL/g Fe3O4 were significantly smaller (P < 0.05) than Fe3O4@SiO2 MPs with TEOS coating concentrations 0.067, 0.34, and 3.3 mL/g Fe3O4 (P < 0.05). Also, Fe3O4@SiO2 MPs with TEOS coating concentration 3.3 mL/g Fe3O4 were significantly larger (P < 0.05) than Fe3O4@SiO2 MPs with TEOS coating concentrations 0.067, 0.34, and 1.7 mL/g Fe3O4. In addition, Fe3O4@SiO2 MPs with TEOS coating concentrations 1.7 and 3.3 mL/g Fe3O4 had a significantly greater negative zeta-potential (mV) than Fe3O4@SiO2 MPs with TEOS coating concentrations 0.067 and 0.34 mL/g Fe3O4, indicating stability of the aforementioned Fe3O4@SiO2 MPs in colloidal suspension. Light microscopy imaging results showed aggregated uncoated Fe3O4 MPs. Also, coated Fe3O4@SiO2 MPs were shown to be less aggregated than uncoated Fe3O4 MPs. However, as the coating concentration increased, particle size and aggregation increased as well. An increase in aggregation may have resulted due to the coating of amorphous, non-uniform Fe3O4 MPs. Increasing temperature (37°C), increased the precipitation rate of uncoated Fe3O4 MPs and coated Fe3O4@SiO2 MPs suspended in degassed Distilled Deionized (DD) water, glycine-HCl (pH 2.5), PBS (pH 7.2), and Tris-HCl (pH 10). Fe3O4@SiO2 MPs with TEOS coating concentration 3.3 mL/g Fe3O4 displayed the most stability in colloidal suspension at RT and 37°C. The effect of pH on the precipitation rate of uncoated Fe3O4 MPs and coated Fe3O4@SiO2 MPs showed the stability of Fe3O4@SiO2 MPs with TEOS coating concentration of 3.3 mL/g Fe3O4 in colloidal suspension at acidic and basic pH. All uncoated Fe3O4 MPs and coated Fe3O4@SiO2 MPs did not show stability in colloidal suspension at a pH near the isoelectric point (pI) of Fe3O4. Fe3O4@SiO2 MPs with TEOS coating concentrations 1.7 and 3.3 mL/g Fe3O4 did not attract to an external magnetic field as rapidly as compared to Fe3O4@SiO2 MPs with TEOS coating concentrations 0.067, 0.34, 10, 13, 17, 25, 50 mL/g Fe3O4 because of their stability in colloidal suspension. Fe3O4 MPs and Fe3O4@SiO2 MPs with TEOS coating concentrations 0.34 and 3.3 mL/g Fe3O4 migrated in a 0.5% agarose gel. Through comprehensive characterization, the optimal TEOS coating concentration of the Fe3O4@SiO2 MPs tested was 3.3 mL/g Fe3O4 due to its particle size, zeta-potential, stability in colloidal suspending against pH and temperature, ability to attract to an external magnetic field, and migration in agarose gel electrophoresis. Glyphosate-imprinted polymers and NIPs were constructed with Fe3O4@SiO2 MPs with TEOS coating concentration 3.3 mL/g Fe3O4. The attraction of GLY-MIPs to an external magnetic field was quicker than the attraction of NIPs to an external magnetic field. This work serves as a basis for future optimization and application of magnetic glyphosate-imprinted polymers and the detection of glyphosate in foods.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Bernat_fsu_0071N_15387
- Format
- Thesis
- Title
- Synthetic Control of Excited-State Dynamics in Low Dimensional Metal Halide Hybrids.
- Creator
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Zhou, Chenkun, Ma, Biwu, Zhu, Lei, Siegrist, Theo, Guan, Jingjiao, Florida State University, FAMU-FSU College of Engineering (Tallahassee, Fla.), Department of Chemical and...
Show moreZhou, Chenkun, Ma, Biwu, Zhu, Lei, Siegrist, Theo, Guan, Jingjiao, Florida State University, FAMU-FSU College of Engineering (Tallahassee, Fla.), Department of Chemical and Biomedical Engineering
Show less - Abstract/Description
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Organic metal halide hybrids have recently emerged as a highly promising class of functional materials for a variety of optoelectronic applications. The exceptional structural tunability has been demonstrated for this class of materials with different types of crystallographic structures. Using appropriate organic moieties and metal halide salts, organic metal halide hybrids with three- (3D), two- (2D), one- (1D), and zero-dimensional (0D) structures at the molecular level have been developed...
Show moreOrganic metal halide hybrids have recently emerged as a highly promising class of functional materials for a variety of optoelectronic applications. The exceptional structural tunability has been demonstrated for this class of materials with different types of crystallographic structures. Using appropriate organic moieties and metal halide salts, organic metal halide hybrids with three- (3D), two- (2D), one- (1D), and zero-dimensional (0D) structures at the molecular level have been developed and studied. Despite the remarkable progress realized in the 3D and 2D metal halide structures, 1D and 0D structures with unique properties were left significantly underexplored. Lowering the dimensionality to 0D with the individual polyhedral metal halides separated from each other allows the bulk crystals to exhibit intrinsic properties (e.g. efficient Stokes-shifted broadband emissions) of their building blocks, which is significantly different from their counterparts with higher dimensionalities. We have demonstrated the capability to synthetically control the photophysical properties of this class of 0D hybrids by different strategies, such as tuning of their compositions, metal halide geometries, and molecular environments. The excitement about the recent developments lies not only in the specific achievements but also in what these materials represent in terms of a new paradigm in materials design. The application of low dimensional hybrids as single-component phosphor in optically pumped white LEDs will also be discussed.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Zhou_fsu_0071E_15295
- Format
- Thesis
- Title
- Teacher Perceptions of Teaching Choral Music in Urban Schools.
- Creator
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Robinson, Gaylon, VanWeelden, Kimberly D., Thomas, André J. (André Jerome), Darrow, Alice-Ann, Florida State University, College of Music
- Abstract/Description
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The purpose of this study was to explore choral music educators' perceptions of teaching in urban secondary schools as compared to teaching in rural and suburban public and charter schools to provide greater clarity to help prepare preservice music educators. The participants (N = 61) in this study were music educators teaching choral music in public/charter middle or high schools in the state of Tennessee during the 2018-2019 academic school year. The results indicated that parental...
Show moreThe purpose of this study was to explore choral music educators' perceptions of teaching in urban secondary schools as compared to teaching in rural and suburban public and charter schools to provide greater clarity to help prepare preservice music educators. The participants (N = 61) in this study were music educators teaching choral music in public/charter middle or high schools in the state of Tennessee during the 2018-2019 academic school year. The results indicated that parental engagement was perceived as the greatest issue while administrative support was the least issue. The results also indicated the majority of participants believed urban schools better address classroom management issues and provides more school funding when compared to rural schools. Conversely, participants believe that rural schools provide more administrative support and parental support respectively compared to urban schools. For the results comparing urban schools to suburban schools, participants indicated they believe school funding, school climate, parental engagement, and administrative support are better addressed or provided for by suburban schools.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Robinson_fsu_0071E_15269
- Format
- Thesis
- Title
- Two Studies on the Application of Machine Learning for Biomedical Big Data.
- Creator
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Lung, Pei-Yau, Zhang, Jinfeng, Liu, Xiuwen, Barbu, Adrian G., Wu, Wei, Florida State University, College of Arts and Sciences, Department of Statistics
- Abstract/Description
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Large volumes of genomic data and new scientific discoveries in biomedical research are being made every day by laboratories in both academia and industry. However, two issues severely affect the usability of so-called biomedical big data: 1) the majority of the public genomic data do not contain enough clinical information, and 2) scientific discoveries are stored in text as unstructured data. This dissertation presents two studies, which address each issue using machine learning methods, in...
Show moreLarge volumes of genomic data and new scientific discoveries in biomedical research are being made every day by laboratories in both academia and industry. However, two issues severely affect the usability of so-called biomedical big data: 1) the majority of the public genomic data do not contain enough clinical information, and 2) scientific discoveries are stored in text as unstructured data. This dissertation presents two studies, which address each issue using machine learning methods, in order to maximize the usability of biomedical big data. In the first study, we infer missing clinical information using multiple gene expression data sets and a wide variety of machine learning methods. We proposed a new performance measure, Proportion of Positives which can be predicted with High accuracy (PPH), to evaluate models in term of their effectiveness in recovering data with missing clinical information. PPH estimates the percentage of data that can be recovered given a desired level of accuracy. The experiment results demonstrate the effectiveness of the predicted clinical information in downstream inference tasks. In the second study, we propose a three-stage computational method to automatically extract chemical-protein interactions (CPIs) from a given text. Our method extracts CPI-pairs and CPI-triplets from sentences; where a CPI-pair consists of a chemical compound and a protein name, and a CPI-triplet consists of a CPI-pair along with an interaction word describing their relationship. We extract a diverse set of features from sentences, which are used to build multiple machine learning models. Our models contain both simple features, which can be directly computed from sentences, and more sophisticated features derived using sentence structure analysis techniques. Our method performed the best among systems which use non-deep-learning methods, and outperformed several deep-learning-based systems in the track 5 of the BioCreative VI challenge. The features we designed in this study are informative and can be applied to other machine learning methods including deep learning.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Lung_fsu_0071E_15134
- Format
- Thesis
- Title
- Ultrafast Dynamics in Warm Dense Matter Materials and Halide Perovskite.
- Creator
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Li, Dong, Cao, Jianming, Yang, Wei, Bonesteel, N. E., Chiorescu, Irinel, Florida State University, College of Arts and Sciences, Department of Physics
- Abstract/Description
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The dissertation presents the recent development of the third-generation femtosecond electron diffractometer in Professor Jim Cao's group. Two techniques, femtosecond electron shadow imaging and deflectometry (FESID) and femtosecond electron diffraction (FED), were developed and applied to study ultrafast dynamics in laser-induced warm dense matter and quantum dots in real time. FESID provides both a global view and local prospect of the transient electric field, associated with laser-induced...
Show moreThe dissertation presents the recent development of the third-generation femtosecond electron diffractometer in Professor Jim Cao's group. Two techniques, femtosecond electron shadow imaging and deflectometry (FESID) and femtosecond electron diffraction (FED), were developed and applied to study ultrafast dynamics in laser-induced warm dense matter and quantum dots in real time. FESID provides both a global view and local prospect of the transient electric field, associated with laser-induced electron emission. The research activities cover two main objects: dynamics of ejected electron expansion from warm dense nanofilms and hyperthermal electron transport mechanisms in warm dense nanofilms. With FED, we measure laser-induced ultrafast structural dynamics of halide perovskite CsPbBr3 in real time. In the first project, we conduct ultrafast electron shadow imaging and deflection measurements of the laser-produced warm dense copper nanofilm. The results show that a significant number of electrons is ejected from the nanofilm, forming electron clouds of hundreds of microns on both sides of the pumped film. Furthermore, even for a thin 30-nm copper film, we find that the electron clouds develop asymmetry between the pumped front side and the rear side at the pump fluence of 4.5 J/cm2. The possible mechanisms leading to this ejected charge asymmetry and its implication are discussed. Next, we report a systematic study of the ejected charge dynamics surrounding laser produced 30-nm warm dense gold films using single-shot femtosecond electron shadow imaging and deflectometry. The results reveal a two-step dynamical process of the ejected electrons under the high pump fluence conditions: an initial emission and accumulation of a large number of electrons near the pumped surface region followed by the formation of hemispherical clouds of electrons on both sides of the film, which escape into the vacuum at a nearly isotropic and constant velocity with an unusually high kinetic energy of more than 300 eV. We also develop a model of the escaping charge distribution that not only reproduces the main features of the observed charge expansion dynamics but also allows us to extract the number of ejected electrons remaining in the cloud. In the second project, we investigate hyperthermal electron transport by single-shot measurements of warm dense gold and aluminum nanofilms using ultrafast electron shadow imaging and deflectometry. The results show a clear fluence limit of 0.26 J/cm2 and 0.83 J/cm2 for ballistic transport of nonthermal electrons for both two metals, respectively. This nonuniform heating is attributed to diffusive electrons. The last project, we have measured the ultrafast structural dynamics in halide perovskite CsPbBr3 in real time with Femtosecond electron diffraction. We observed CsPbBr3 experience significant ultrafast impulsive heating. This heating causes the CsPbBr3 to undergo an orthorhombic-to-cubic phase transition observable through FED. The photo induced phase transition occurs on the timescale of 1.1 ± 0.3 ps at fluences of 2.5 mJ/cm2.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Li_fsu_0071E_15420
- Format
- Thesis
- Title
- A Zooarchaeological Analysis of Feasting at Grand Mound Shell Ring (8DU1), Duval County, Florida.
- Creator
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McLean, Emily A., Peres, Tanya M., Marrinan, Rochelle A., Halligan, Jessi J., Florida State University, College of Arts and Sciences, Department of Anthropology
- Abstract/Description
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Archaeologists have been interested in the foodways of prehistoric peoples for over half a century, leading to a plethora of analyses on diet and subsistence strategies. In the last 30 years, archaeologists have come to focus on the role of food in ideological, political, and social settings. One avenue of exploration into these relationships is through the identification of communal eating events, or feasting. In this thesis I investigate whether or not feasting events occurred at Grand...
Show moreArchaeologists have been interested in the foodways of prehistoric peoples for over half a century, leading to a plethora of analyses on diet and subsistence strategies. In the last 30 years, archaeologists have come to focus on the role of food in ideological, political, and social settings. One avenue of exploration into these relationships is through the identification of communal eating events, or feasting. In this thesis I investigate whether or not feasting events occurred at Grand Mound Shell Ring (8Du1), Duval County, Florida. To test this, I compare the faunal assemblage from three discrete deposits (nineteen units and six features) at Grand Mound Shell Ring to archaeological correlates of feasting outlined by three different models (Jackson and Scott 1995; Twiss 2008; VanDerwarker 1999; VanDerwarker et al. 2007). My analysis, based on the faunal material and limited contextual information, found it is likely that communal feasting activities took place at Grand Mound Shell Ring.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_McLean_fsu_0071N_15306
- Format
- Thesis
- Title
- Weathering the Storm: An Examination of Fetal Loss, Maternal Age, and Norms of Race and Sexuality.
- Creator
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Latinsky, Andrew, Ueno, Koji, Grzywacz, Joseph G., Burdette, Amy M., Waggoner, Miranda R., Florida State University, College of Social Sciences and Public Policy, Department of...
Show moreLatinsky, Andrew, Ueno, Koji, Grzywacz, Joseph G., Burdette, Amy M., Waggoner, Miranda R., Florida State University, College of Social Sciences and Public Policy, Department of Sociology
Show less - Abstract/Description
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This dissertation tests if fetal loss can be applied as an extension of prior literature on the weathering hypothesis. To do so, this study extends upon the weathering hypothesis: the observation that blacks experience substantially higher levels of stress than their white counterparts in the United States, that this gap only increases as individuals become older, and that this resulting stress is correlated with negative health outcomes, especially chronic disease. This outcome is proposed...
Show moreThis dissertation tests if fetal loss can be applied as an extension of prior literature on the weathering hypothesis. To do so, this study extends upon the weathering hypothesis: the observation that blacks experience substantially higher levels of stress than their white counterparts in the United States, that this gap only increases as individuals become older, and that this resulting stress is correlated with negative health outcomes, especially chronic disease. This outcome is proposed to be caused by subtle racist events and broader institutional racism, resulting in the literal accumulation of stress in the body. The outcome of weathering can be measured in physical responses of the individual's body such as cortisol levels and blood pressure (referred to collectively as allostatic load). Because negative events lead to these stress responses being more common in blacks than whites, resulting in higher allostatic load, there is a corresponding increase in the incidence of health problems such as chronic inflammation. In prior research, the impact of weathering on maternal and child health has been tested for by examining the choice of early childbearing among black mothers. This is a time period where the gap in allostatic load measures is smaller across race. Prior studies examining the weathering hypothesis have determined that for minority women, and minority women only (particularly black women), the risk of maternal mortality, premature birth, low birth weight, and infant mortality is smaller when women become pregnant in adolescence as opposed to young adulthood. However, in spite of a fetal loss gap by race that is similar to the aforementioned maternal and child health outcomes, there is a lack of research into if effects associated with the weathering hypothesis occur with fetal loss. Two analyses are performed to test this relationship. The first analysis consists of a series of multilevel logistic models on approximately seventeen thousand pregnancy outcomes in the National Longitudinal Survey of Adolescent to Adult Health (Add Health), examining the relative risk of fetal loss based on racial and age characteristics of mothers at the time of pregnancy. The second analysis follows with a series of logistic regressions examining approximately four million pregnancies in the National Vital Statistics Survey (NVSS) for the years 2016 and 2013, also examining the influence of the mother's race, age, and its interaction on fetal loss risks in each year. These analyses find that for each sample (including both years of the NVSS), black women overall have higher risks of fetal loss than their white counterparts. However, for black and Hispanic-black women, the risk of fetal loss was lower in adolescent pregnancies than adult pregnancies, consistent with the weathering hypothesis. The findings from this dissertation suggest that the effects of weathering on maternal and child healthcare outcomes can in fact be extended to the issue of fetal loss, thereby suggesting that stress resulting from racism has a broader collection of harms than previously recognized.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Latinsky_fsu_0071E_15284
- Format
- Thesis
- Title
- Using the Acute: Chronic Workload Ratio to Predict Peak Performance in Elite NCAA Track and Field Sprinters.
- Creator
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Saylor, Hannah Elizabeth, Ormsbee, Michael J., Chow, Graig Michael, Hickner, Robert C., Florida State University, College of Human Sciences, Department of Nutrition, Food, and...
Show moreSaylor, Hannah Elizabeth, Ormsbee, Michael J., Chow, Graig Michael, Hickner, Robert C., Florida State University, College of Human Sciences, Department of Nutrition, Food, and Exercise Sciences
Show less - Abstract/Description
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Purpose: To establish the relationship between the acute:chronic workload ratio and peak performance in division 1 NCAA track and field sprinters over the course of the 2018 outdoor season. Methods: The acute:chronic workload ratio was determined by calculating the sum of the week before the competition's session rating of perceived exertion of training load (acute load) and dividing it by the average weekly session rating of perceived exertion of training load over the previous four weeks ...
Show morePurpose: To establish the relationship between the acute:chronic workload ratio and peak performance in division 1 NCAA track and field sprinters over the course of the 2018 outdoor season. Methods: The acute:chronic workload ratio was determined by calculating the sum of the week before the competition's session rating of perceived exertion of training load (acute load) and dividing it by the average weekly session rating of perceived exertion of training load over the previous four weeks (chronic workload). All ratings of perceived exertion were self-reported through an Athlete Management System (AMS) no later than one hour after the training session or competition. The sprinters' race times were recorded through an online data base and, in the primary statistical analysis, were analyzed for confounding variables. Once the confound variables were established, Pearson correlations were used covarying for the confounding variables. Our hypothesis was that there would be a positive relationship between the acute:chronic workload ratio and the 100m and 200m race times. In a secondary analysis, violating the statistical assumption of independence, the acute:chronic workload ratio was correlated to the sum of all data points for male and female 100m and 200m race times and the male and female 100m and 200m Z-scores for each sprinter. Bins were created with the hypothesis that having an acute:chronic workload ratio between 0.8 and 1.3 would be correlated with lower race times in the 100m and 200m races and more negative Z-scores for the 100m and 200m races. Results: A lower acute:chronic workload ratio resulted in a moderate positive correlation with lower race times in the 100m (R= 0.542) and 200m (R= 0.711) races. Conclusions: Maintaining an acute:chronic workload ratio between 0.8 and 1.3 may be optimal for elite division 1 NCAA track and field sprinters to reach their peak performance in the 100m and 200m races. An individualized approach to training load using the acute:chronic workload ratio should help coaches and performance staff with individualized training-load planning and prescription for the sprinters to reach peak performance.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Saylor_fsu_0071N_15316
- Format
- Thesis
- Title
- Understanding Multi-Physics of Quench in "No-Insulation" Rare Earth Barium Copper Oxide Superconducting Magnets.
- Creator
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Bhattarai, Kabindra Ram, Hahn, Seung Yong, Pamidi, Sastry V., Larbalestier, D. (David), Kametani, Fumitake, Guo, Wei, Florida State University, FAMU-FSU College of Engineering ...
Show moreBhattarai, Kabindra Ram, Hahn, Seung Yong, Pamidi, Sastry V., Larbalestier, D. (David), Kametani, Fumitake, Guo, Wei, Florida State University, FAMU-FSU College of Engineering (Tallahassee, Fla.), Department of Mechanical Engineering
Show less - Abstract/Description
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Electromagnets are an important application of superconductivity as superconductors can provide large current density in the winding pack without any voltage drop or joule heating losses. High temperature superconducting (HTS) magnets have advantages over low temperature superconducting (LTS) magnets, particularly because HTS magnets have better stability and possibility of producing magnetic field higher than 20 T. However, protection of HTS magnets is challenging due to slow normal zone...
Show moreElectromagnets are an important application of superconductivity as superconductors can provide large current density in the winding pack without any voltage drop or joule heating losses. High temperature superconducting (HTS) magnets have advantages over low temperature superconducting (LTS) magnets, particularly because HTS magnets have better stability and possibility of producing magnetic field higher than 20 T. However, protection of HTS magnets is challenging due to slow normal zone propagation (NZP). When the NZP is slow, the stored magnetic energy is dissipated at localized area where the hot spot temperature can rise significantly and can cause "burn-out" damage on the superconductor. The no-insulation (NI) HTS winding technique has been experimentally demonstrated to be a promising technology, particularly to prevent a coil from electric burn-out, and has made it possible to reach a magnetic field of 45.5 T at the magnet center. NI magnets are dry wound and this adds to the ease in construction of NI coils as difficult epoxy impregnation process or wet winding process can be eliminated. The lack of insulation makes the magnet compact due to larger engineering current density, Je. Je of up to 1580 A/mm2 has been reported in NI coils, which is significantly larger than observed in insulated counterparts. The lack of low strength insulation also makes the magnet robust. NI winding using REBCO does not require processing steps such as epoxy impregnation or heat treatment, making its construction faster and convenient. However, as seen from the evidences of mechanical damage (seen from microscopy and critical current measurement) on the 45.5 T insert coil, there is a limit to this otherwise exciting technology. This research explores, in both simulation and experiment, the post-quench behaviors of NI magnets to quantitatively understand their self-protecting mechanism. NI quench modeling is challenging due to its non-linear, extremely fast and interrelated multiphysical behavior. A lumped circuit model combined with heat transfer and solid mechanics models is used to explain electrical, thermal, and mechanical responses in detail at the magnet level. In this model, each subcoil is modeled as single inductor (L M) with variable resistances in series (Rq) and in parallel (Rc). For this purpose, some magnets that have been constructed and quenched at 4.2 K are being analyzed, which are 1) a stack of 3 double-pancake (DP) coils, 2) 14.5 T insert in 31 T resistive magnet, 3) 2 DP insert in 31 T resistive magnet, 4) 7 T standalone magnet, 5) 26 T standalone magnet, 6) 13 T HTS insert in 7 T background LTS magnet. The lessons learned from analysis of these magnets are presented in this work. The quench modeling allows us to look at temperature and stress in the magnet that are difficult to measure, but are important to make sure damages due to burn-out or overstraining do not occur during operation. With the lessons learned, this approach can now be used for future design of high field magnets to make sure mechanical damage during the magnet quench is prevented.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Bhattarai_fsu_0071E_15131
- Format
- Thesis
- Title
- Understanding the "Success" of an All Girls' Boarding School in Rural Tanzania: Perspectives of Graduates, Teachers, and Administrators.
- Creator
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Frank, Alison, Khurshid, Ayesha, McDowell, Stephen D., Akiba, Motoko, Zuilkowski, Stephanie Simmons, Florida State University, College of Education, Department of Educational...
Show moreFrank, Alison, Khurshid, Ayesha, McDowell, Stephen D., Akiba, Motoko, Zuilkowski, Stephanie Simmons, Florida State University, College of Education, Department of Educational Leadership and Policy Studies
Show less - Abstract/Description
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International aid agencies and policymakers over the last several decades have sought strategies and policies to support education for girls throughout the world. Despite significant interventions from world aid organizations, non-governmental agencies, and individual countries, more than half of children not attending school are girls. Girls' transition rate from primary to secondary education has been especially alarming in sub-Saharan Africa: close to 50% of children do not matriculate...
Show moreInternational aid agencies and policymakers over the last several decades have sought strategies and policies to support education for girls throughout the world. Despite significant interventions from world aid organizations, non-governmental agencies, and individual countries, more than half of children not attending school are girls. Girls' transition rate from primary to secondary education has been especially alarming in sub-Saharan Africa: close to 50% of children do not matriculate from primary to secondary school in Africa. In some countries, the numbers have been even higher. As of 2013, less than 20% of Tanzanian children continued on to the secondary level of education (UNESCO, 2013). In this dissertation, I explored factors and processes at an all-girls' boarding school in rural Tanzania that supported students' high performance on national exams as well as high retention and graduation rates. Drawing upon in-depth interviews, this research illustrated how teachers, administrators, and graduates of this school defined, approached, and made sense of factors that made this particular girls' education program a success.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Frank_fsu_0071E_15354
- Format
- Thesis
- Title
- Using App-Based Organizational Strategies to Promote Neurodiverse and Typical Students' Success.
- Creator
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Gortsema, Jessica, Cripe, Juliann J. Woods, Therrien, Michelle, Hinnant, Lynne, Florida State University, College Ofcommunication and Information, School of Communication...
Show moreGortsema, Jessica, Cripe, Juliann J. Woods, Therrien, Michelle, Hinnant, Lynne, Florida State University, College Ofcommunication and Information, School of Communication Science and Disorders
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The purpose of this study was to evaluate the perceptions of both neurodiverse and typical college students on organizational applications targeting support of executive functioning and overall college success. The study utilized a mixed method, exploratory design, collecting both qualitative and quantitative data through online surveys and web interviews. Student perceptions of organizational apps and individualized consultative services were measured, as well as frequency of use and types...
Show moreThe purpose of this study was to evaluate the perceptions of both neurodiverse and typical college students on organizational applications targeting support of executive functioning and overall college success. The study utilized a mixed method, exploratory design, collecting both qualitative and quantitative data through online surveys and web interviews. Student perceptions of organizational apps and individualized consultative services were measured, as well as frequency of use and types of apps chosen. Results showed that student participants significantly increased how frequently they used organizational apps. Students participants reported that they would utilize such services again and would refer other students to the services. Aspects that were liked best about the services and suggestions for improvement were collected. These results can be used to shape future services for neurotypical and neurodiverse college students as well as in research to further develop evidence-based supports.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Gortsema_fsu_0071N_15226
- Format
- Thesis
- Title
- The Value of Emotion in the Advance Directive Debate.
- Creator
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Boerstler, Kyle R. (Kyle Ryan), Kearns, Stephen, Nair-Collins, Michael Patrick, May, Simon Căbulea, Florida State University, College of Arts and Sciences, Department of Philosophy
- Abstract/Description
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This dissertation contains emotion. In fact, it is about emotion, and particularly how emotions can disrupt and otherwise force us to reexamine our preconceived notions (or hypothetically predicted values) about important facets of our lives. This dissertation is also about autonomy and the prospect of death, and especially how human emotion changes the conversation surrounding these important topics. I am particularly interested in how the conversation about advance directives only...
Show moreThis dissertation contains emotion. In fact, it is about emotion, and particularly how emotions can disrupt and otherwise force us to reexamine our preconceived notions (or hypothetically predicted values) about important facets of our lives. This dissertation is also about autonomy and the prospect of death, and especially how human emotion changes the conversation surrounding these important topics. I am particularly interested in how the conversation about advance directives only indirectly (or often not at all) addresses emotion, given how emotionally invested most people are in their life (and, when they think about it, the prospect of their demise). I suggest in this dissertation that this is, at least plausibly and perhaps only in part, due to historically patriarchal forces that have caused a kind of cultural blindness surrounding emotion, though this is steadily being rectified by feminists and feminist allies. To return to advance directives, I intend to examine these medical documents from numerous angles. This examination becomes complicated by the cases that I have in mind, which are when advance directives are supposed to provide some measure of control and respect for autonomy for persons who will have dementia or other cognitively declining illnesses. These are popular cases in the literature to look at, but more than that, these are people who are potentially the most vulnerable in these important decisions because a person with dementia is no longer able to advocate for themselves in many cases, even if they have *advocated* for their interests previously via an advance directive. I intend to provide arguments that challenge their creation, arguments that challenge their sustained authority over incompetent patients, and arguments that show that other arguments in favor of them fail, perhaps for many reasons, but perhaps more importantly, because of their neglect of emotion. I do not intent to provide a robust theory of what an emotion is, but rather examine how they function in our decision-making and how considerations regarding the kind of knowledge and value they provide can help us recognize important realities that our cold rationality may miss. In the end, I do not argue that advance directives should be done away with entirely. Instead, I argue that the literature holds them in too high a regard in many cases, and even with the best of circumstances in completing them (which is by no means a common occurrence), the emotions provide several routes for argumentation that shows their authority over persons with dementia should be reduced to one tool among many in a complex and fraught decision-making process. Even if my arguments should fail to persuade the reader, I contend that examining such an important dimension of the human experience can only provide valuable insight and wisdom regarding an incredibly difficult issue.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Boerstler_fsu_0071E_15417
- Format
- Thesis
- Title
- We Could Do Better: The Presence, Absence, and Librarian Perceptions of Lesbian, Gay, Bisexual, Transgender, and Queer Resources in Small and Rural Public Libraries in Alabama.
- Creator
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Betts-Green, Crystal Dawn, Latham, Don, Doan, Petra L., Kazmer, Michelle M., Rodriguez-Mori, Howard, Florida State University, College of Communication and Information, School...
Show moreBetts-Green, Crystal Dawn, Latham, Don, Doan, Petra L., Kazmer, Michelle M., Rodriguez-Mori, Howard, Florida State University, College of Communication and Information, School of Information
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Although the LGBTQ community, from all appearances, maintains a strong connection to libraries as safe spaces, it is unclear whether the libraries themselves are providing relevant resources and services to the community. In addition, LIS research on LGBTQ patrons has centered on collection development how-tos and high level, broad suggestions without evaluating the actual state of the libraries' resources and services to these patrons. And even in the research that has considered small or...
Show moreAlthough the LGBTQ community, from all appearances, maintains a strong connection to libraries as safe spaces, it is unclear whether the libraries themselves are providing relevant resources and services to the community. In addition, LIS research on LGBTQ patrons has centered on collection development how-tos and high level, broad suggestions without evaluating the actual state of the libraries' resources and services to these patrons. And even in the research that has considered small or rural libraries, none have focused on the rural and small town Southern U.S., which data has shown is the most inhospitable of regions in the U.S. for LGBTQ individuals. The purpose of this research was to explore the status of LGBTQ collections, particularly young adult collections, in rural and small libraries in Alabama and determine whether the librarians and staff in charge of these collections have an accurate view of what exists there. In addition, the research sought to discover whether there are active efforts to maintain and/or improve these collections and provide services to the LGBTQ community. In this project, I used two qualitative methods: content analysis of library catalogs and interviews. Seventy-seven library catalogs of small and rural libraries in Alabama were examined, and five librarians from this set of libraries were interviewed. I used open coding to analyze the interviews and used this in concert with the catalog data to build a picture of what the actual state of small and rural libraries in Alabama is. In the analysis, I found that the libraries, while they did have varying sizes of collections do contain some LGBTQ resources though the use of subject headings is inaccurate and vague in many cases. In addition, through the interview analysis, I found that what primarily affected what the libraries had on their shelves was an actively engaged librarian dedicated to proper collection development practices. This was exploratory research designed to create a foundation for future inquiry into the state of small and rural libraries in the U.S. South, something which has not been fully explored in LIS literature. Future research will be needed to better determine motivations and best practices for the larger group.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_BettsGreen_fsu_0071E_15189
- Format
- Thesis
- Title
- Using State Policy Determinants to Predict For-Profit Undergrraduate Enrollment Share at Degree-Granting Institutions.
- Creator
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Kleuver, Steven A., Park, Toby J., Hu, Shouping, Schwartz, Robert A., Florida State University, College of Education, Department of Educational Leadership and Policy Studies
- Abstract/Description
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For-profit institutions are thought to fill the educational gap when traditional nonprofit colleges fail to serve the needs of an evolving student population. Over the past several decades, the enrollment share of undergraduate students attending for-profit institutions in lieu of traditional nonprofit institutions has expanded substantially. While this growth has been noted by researchers, comparatively little is known about what determinants impact the state enrollment share of students...
Show moreFor-profit institutions are thought to fill the educational gap when traditional nonprofit colleges fail to serve the needs of an evolving student population. Over the past several decades, the enrollment share of undergraduate students attending for-profit institutions in lieu of traditional nonprofit institutions has expanded substantially. While this growth has been noted by researchers, comparatively little is known about what determinants impact the state enrollment share of students attending for-profit institutions. Furthermore, the chronicling of state policy directed at for-profit institutions has not been completed in a concise and accessible manner. This study uses a panel dataset spanning the years 1997 to 2015 to measure for-profit enrollment to determine the effects of select state-level policy variables on the undergraduate enrollment share of for-profit institutions. Results of this study showed that state policies do impact for-profit enrollment share. After cataloging relevant state policies, 18 laws across 10 states were found to directly address the for-profit sector. As predicted, laws favorable to for-profit institutions (positive laws) were found to increase for-profit enrollment share and laws regulating for-profit institutions (negative laws) were found to decrease for-profit enrollment share. Educational appropriations per student FTE and the existence of a consolidated governing board were also found as controllable variables that impact for-profit enrollment share.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Kleuver_fsu_0071E_15147
- Format
- Thesis
- Title
- Using Telepractice to Coach Caregivers of Children with Visual Impairments to Increase the Independent Living Skills of Their Children.
- Creator
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Yarbrough, Susan Elizabeth, Lewis, Sandra, Cripe, Juliann J. Woods, Hanline, Mary Frances, Florida State University, College of Education, School of Teacher Education
- Abstract/Description
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Children with visual impairments have unique learning needs because visual impairment impacts a child's ability to learn incidentally though observation (Lowenfeld, 1952, 1973). Literature suggests children with visual impairments do not perform independent living skills at the same level as their peers with typical vision (e.g., Lewis & Iselin, 2002). Teachers of students with visual impairments (TVIs) struggle to find time to teach independent living skills during the school day (e.g.,...
Show moreChildren with visual impairments have unique learning needs because visual impairment impacts a child's ability to learn incidentally though observation (Lowenfeld, 1952, 1973). Literature suggests children with visual impairments do not perform independent living skills at the same level as their peers with typical vision (e.g., Lewis & Iselin, 2002). Teachers of students with visual impairments (TVIs) struggle to find time to teach independent living skills during the school day (e.g., Lohmeier, Blankenship, & Hatlen, 2009), but caregivers may have the time and motivation to prioritize these skills at home. Caregiver coaching has been shown to increase the skills of caregivers of children with disabilities (e.g., Marturana & Woods, 2012); however, coaching models have not yet been widely applied to caregivers of children with visual impairments. Some researchers have applied teleconferencing technologies to provide access to coaching and successfully build the capacity of caregivers of children with disabilities (e.g., Baharav & Reiser, 2010). As such, telepractice coaching was explored as a tool to bridge physical distance between coaches with expertise in educating children with visual impairments and caregivers who have the opportunity to implement instruction in independent living skills for their children with visual impairments. A single case, multiple baseline across contexts design was used to implement a telepractice caregiver coaching intervention in the homes of three caregiver-child dyads for two to three times a week over about 10 weeks. The included children were tactual learners with no other significant disabilities aged 5 to 11 years old. The study sought to answer the questions: (a) does telepractice coaching with the Family Guided Routines Based Intervention (FGRBI) coaching model (e.g., Woods, 2017) increase caregiver correct use of coached instructional strategies during independent living skills routines with their children who have visual impairments? and (b) does caregiver use of coached instructional strategies increase the child's independent completion of independent living skills tasks? Because the coaching intervention was only implemented across all three contexts in one dyad, data from that dyad only can be considered as evidence of the effectiveness of the intervention. In that dyad, the caregiver increased her skills above baseline levels in all three contexts and demonstrated mastery in two contexts. However, great variability in the data make it difficult to conclude with certainty that there is a functional relation between telepractice caregiver coaching and caregiver instructional strategy use in teaching her child with a visual impairment. In addition, instructional skills learned in one skill context were generalized by some caregivers to other independent living skills contexts without coaching. Challenges with the length and duration of sessions caused concern regarding the social validity of the intervention. However, data collected after the study from participants and an external rater as well as maintenance data suggested high social validity of the intervention. Findings suggest the use of telepractice to deliver interactive caregiver coaching should be further investigated to determine its effectiveness to increase both caregiver instructional skills and the independent living skills of children with visual impairments. If telepractice is found to be effective, TVIs may benefit from using telepractice coaching to build relationships and strengthen capacity within the families of their students. Further research is necessary to examine the use of the telepractice coaching intervention to meet the needs of families and children with diverse characteristics, explore the role of siblings as peer models, and expand the role of the child in coaching. Further, the composition of the telepractice coaching intervention should be investigated to determine which intervention components may be most effective for which families, and how frequently they should be delivered for maximum efficiency.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Yarbrough_fsu_0071E_15340
- Format
- Thesis
- Title
- Teachers' and Speech-Language Pathologists' Perceptions of and Responses to Students' African American English Use within Academic Settings.
- Creator
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Brown, Dana Michelle, Hall-Mills, Shannon S., Wood, Carla, Sunderman, Gretchen L., Cortese, Juliann, MacRae, Toby, Florida State University, College of Communication and...
Show moreBrown, Dana Michelle, Hall-Mills, Shannon S., Wood, Carla, Sunderman, Gretchen L., Cortese, Juliann, MacRae, Toby, Florida State University, College of Communication and Information, School of Communication Science and Disorders
Show less - Abstract/Description
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The achievement gap between African American students and their Caucasian peers is a problem that has persisted within the educational system since the early 1970s. Researchers have been investigating whether differences in oral language, such as, Nonmainstream American English (NMAE) use contribute to this gap. There is also concern from researchers about teachers' and speech-language pathologists' (SLP) perceptions of NMAE use within academic settings, along with the methods that teachers'...
Show moreThe achievement gap between African American students and their Caucasian peers is a problem that has persisted within the educational system since the early 1970s. Researchers have been investigating whether differences in oral language, such as, Nonmainstream American English (NMAE) use contribute to this gap. There is also concern from researchers about teachers' and speech-language pathologists' (SLP) perceptions of NMAE use within academic settings, along with the methods that teachers' and SLPs' use to respond to linguistic differences. The purpose of this current research was to examine first, third, and fifth-grade teachers' and elementary school-based SLPs' perceptions of and responses to the African American English (AAE) dialect based on oral and written language examples. A survey method elicited demographic information, perceptions, and responses to AAE use from participants. Descriptive analyses revealed that the participants had negative perceptions of AAE use. Chi Square and logistic regression analyses revealed that perceptions did not impact the likelihood of the participants responding using the actions provided. Neither professional development nor whether or not the participants reported to use AAE themselves was associated with most of the responses to students' use of AAE. The results suggest that teachers and SLPs have negative perceptions regarding students AAE use. However, the participants' perceptions were less likely to influence how they respond to AAE use.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Brown_fsu_0071E_15087
- Format
- Thesis
- Title
- Excessive Exercise, Eating Pathology and Suicidality: Investigating the Role of Capability for Suicide.
- Creator
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Buchman, Jennifer M. (Jennifer Marie), Joiner, Thomas, Winegardner, Mark, Cougle, Jesse R. (Jesse Ray), Eckel, Lisa A., Patrick, Christopher J., Florida State University,...
Show moreBuchman, Jennifer M. (Jennifer Marie), Joiner, Thomas, Winegardner, Mark, Cougle, Jesse R. (Jesse Ray), Eckel, Lisa A., Patrick, Christopher J., Florida State University, College of Arts and Sciences, Department of Psychology
Show less - Abstract/Description
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Eating disorders (EDs) are associated with increased risk for suicide. Recent research suggests that excessive exercise (EE), an ED compensatory behavior, may increase suicide risk via increasing one's capability for suicide which is comprised of an elevated pain tolerance and a diminished fear of death. However, additional research is needed to determine the exact mechanisms by which EE may influence capability for suicide. Specifically, no studies to date have examined the influence of EE...
Show moreEating disorders (EDs) are associated with increased risk for suicide. Recent research suggests that excessive exercise (EE), an ED compensatory behavior, may increase suicide risk via increasing one's capability for suicide which is comprised of an elevated pain tolerance and a diminished fear of death. However, additional research is needed to determine the exact mechanisms by which EE may influence capability for suicide. Specifically, no studies to date have examined the influence of EE and eating pathology on behavioral indices of capability for suicide. The present study had two aims: 1) this study sought to examine how EE engagement and ED status influences pain avoidance behaviors in comparison to controls; and 2) the second aim of the present study was to determine how EE engagement and ED status influence fear of death and avoidance of death-related stimuli. We recruited 87 participants based on ED and EE status (22 controls, 22 EE only, 21 ED only, and 22 ED+EE). Hierarchical regression with dummy coding was used to compare our groups on the following outcomes: 1) breakpoint and total key presses on a pain avoidance progressive ratio task (CPT); and 2) breakpoint and total key presses on a death avoidance progressive ratio task (viewing and rating of suicide images). The results of the present study provide preliminary, albeit mixed support for our hypotheses. Specifically, we found that the EE only (β = -0.31, p = .017) and ED only (β = -0.30, p = 0.02) groups differed significantly from controls on one measure of pain avoidance (CPT PR breakpoint); the ED only group (β = -0.31, p = .017) differed significantly from controls on one measure of death avoidance (suicide-related images PR total presses). However, our ED group characterized by EE did not differ significantly from controls on any of our behavioral measures. See supplementary file for Tables 1 and 2 which provide group comparisons on main variables of interest (Table 1) and a correlation matrix for continuous variables (Table 2). Exploration of these findings, limitations, and areas for future research are included in our general discussion.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Buchman_fsu_0071E_15405_P
- Format
- Set of related objects
- Title
- RIF1 Is Necessary to Maintain Epigenetic State in Human Cells.
- Creator
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Klein, Kyle N., Gilbert, David M., Gunjan, Akash, Bass, Hank W., Yu, Hong-Guo, Chadwick, Brian P., Florida State University, College of Arts and Sciences, Department of...
Show moreKlein, Kyle N., Gilbert, David M., Gunjan, Akash, Bass, Hank W., Yu, Hong-Guo, Chadwick, Brian P., Florida State University, College of Arts and Sciences, Department of Biological Science
Show less - Abstract/Description
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DNA is replicated in a defined temporal order termed the RT program. Ordered DNA replication is conserved in eukaryotes, yet its biological significance remains enigmatic. 3D genome organization as assayed by Hi-C has revealed that RT is highly correlated with genome architecture at two scales. Developmentally programmed changes in RT occur in units that align with sub-megabase chromatin architectural units known as TADs and early and late replicating chromatin is segregated into separate A...
Show moreDNA is replicated in a defined temporal order termed the RT program. Ordered DNA replication is conserved in eukaryotes, yet its biological significance remains enigmatic. 3D genome organization as assayed by Hi-C has revealed that RT is highly correlated with genome architecture at two scales. Developmentally programmed changes in RT occur in units that align with sub-megabase chromatin architectural units known as TADs and early and late replicating chromatin is segregated into separate A and B sub-nuclear compartments respectively. Transcriptionally permissive histone modifications are associated with early replication and A nuclear compartmentalization. Conversely, transcriptionally repressive histone modifications are associated with late replication and B nuclear compartmentalization. However, studies of mechanisms linking RT and chromatin architecture with epigenetic chromatin modifications have been difficult since mutation of chromatin regulatory proteins have found only small, localized changes in the RT program, not global disruption of ordered replication. Indeed, depletion of key architectural proteins such as CTCF and cohesin disrupts TAD structure but has little effect on compartments or RT. RIF1 is the only protein shown to have a conserved role in regulating RT genome wide. To address the role of RT in organizing epigenetic chromatin modifications and genome structure we have generated RIF1 knockouts via CRISPR/Cas9 genome editing in hESCs and the cancer cell line HCT116. While RT changes in HCT116 mirrored those seen in previously published human and mouse RIF1 null cell lines, remarkably, hESC null cells lose almost all detectable temporal replication specificity, despite retaining pluripotency, a nearly normal transcriptome, and cell cycle progression. In both cell lines, the effect on RT was due to increased stochastic cell to cell variation in RT, rather than discrete RT changes as previously thought. Hi-C detected significant changes in compartments driven by changes in interactions between peaks of specific histone marks that coordinately increase or decrease in intensity. Heterochromatic H3K9me3 peaks were globally reduced in intensity, but highly enriched in both peak intensity and interaction strength at certain loci that remained late replicating. H3K27me3 showed cell line specific changes, becoming enriched or excluded from H3K9me3-rich domains in hESCs or HCT116, respectively. H3K27ac peaks also showed a global decrease in peak intensity and interactions between peaks were significantly weakened. H3K4me3 peak intensity and inter-peak interactions were depleted in the A nuclear compartment and enriched in the B nuclear compartment. TAD architecture and Rad21 binding was largely unaffected in both cell lines. We conclude that RIF1 is necessary to maintain the global epigenetic landscape and suggest a model in which RT regulates chromatin and compartment identity in human cells.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_KLEIN_fsu_0071E_15412_P
- Format
- Set of related objects
- Title
- Smartwatch Adoption within the Running Community.
- Creator
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Ramos, Nathaniel, Mon, Lorri M., Dennen, Vanessa P., Burnett, Kathleen M., Kazmer, Michelle M., Florida State University, College of Communication and Information, School of...
Show moreRamos, Nathaniel, Mon, Lorri M., Dennen, Vanessa P., Burnett, Kathleen M., Kazmer, Michelle M., Florida State University, College of Communication and Information, School of Information
Show less - Abstract/Description
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This research investigates the adoption of smartwatches within the running community. By using a mixed methods design consisting of quantitative surveys and qualitative interviews, this study asks runners what factors influence their adoption of smartwatches, what information is valued and most utilized, and the impact of these devices on their behavior. This study primarily relies on Diffusion of Innovations theory as a lens through which to view the factors of adoption for runners, but it...
Show moreThis research investigates the adoption of smartwatches within the running community. By using a mixed methods design consisting of quantitative surveys and qualitative interviews, this study asks runners what factors influence their adoption of smartwatches, what information is valued and most utilized, and the impact of these devices on their behavior. This study primarily relies on Diffusion of Innovations theory as a lens through which to view the factors of adoption for runners, but it also utilizes questions from the Technology Acceptance Model to attempt to better understand the role of these devices within the running community. Through the utilization of surveys and interviews, this study identifies relative advantage to be the primary factor in adopting smartwatches and trialability to be an unimportant factor. Further, all interview participants in this study reported that smartwatches made them more aware of their behavior, and 14 of 15 interview participants stated that their behavior and/or training regimens had changed due to data they obtained via smartwatches. The findings of this study suggest that more research is needed to determine whether these changes are temporary or part of a larger, permanent trend. Further, based on this study, there is a need for more research into the impact of smartwatches in other communities to determine whether the effect of smartwatches on behavior is isolated to athletes who are actively training or whether more fitness data and greater awareness of one's activity spurs greater movement in the population more generally.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_RamosJr_fsu_0071E_14988_P
- Format
- Set of related objects
- Title
- A Structural Equation Modeling Analysis of Chinese Undergraduate English Language-Learners' Personal Factors and Contextual Factors Based on Self-Determination Theory.
- Creator
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Chen, Yanyan, Turner, Jeannine E., Sunderman, Gretchen L., Yang, Yanyun, Roehrig, Alysia D., Florida State University, College of Education, Department of Educational Psychology...
Show moreChen, Yanyan, Turner, Jeannine E., Sunderman, Gretchen L., Yang, Yanyun, Roehrig, Alysia D., Florida State University, College of Education, Department of Educational Psychology and Learning Systems
Show less - Abstract/Description
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This study investigated the relationships among Chinese undergraduate English learners' motivation for learning English (i.e., students' internal choice, students' external pressure), integrative orientation (i.e., students' engagement with the target language culture or community), students' perceptions of psychological need satisfaction, English self-efficacy, classroom engagement, and their English academic achievement. The theoretical framework underlying this study is Self-Determination...
Show moreThis study investigated the relationships among Chinese undergraduate English learners' motivation for learning English (i.e., students' internal choice, students' external pressure), integrative orientation (i.e., students' engagement with the target language culture or community), students' perceptions of psychological need satisfaction, English self-efficacy, classroom engagement, and their English academic achievement. The theoretical framework underlying this study is Self-Determination Theory (Ryan & Deci, 2000a, 2000b, 2017). To investigate the relationships among the variables, a quantitative research methodology of a full structural equation model with single indicators was used. Although language learners' motivation for learning a second/foreign language is a well-studied construct, there is a paucity of studies to investigate whether or not Self-Determination Theory applies to Chinese collectivistic culture for understanding Chinese college English language learners' motivation for learning English. The purpose of this dissertation study was to investigate the relationships among Chinese undergraduate English language learners' personal variables (i.e., motivation for learning English, integrative orientation, English self-efficacy, classroom engagement, and English academic achievement) and contextual variables (i.e., students' perceptions of psychological need satisfaction) in a full structural model. The participants of this study were 1,378 Chinese undergraduate English majors from middle-level national public universities in the Southeast of China. Findings of the current study showed that Chinese undergraduate English language-learners, who were primarily regulated by internal choice (i.e., intrinsic regulation, identified regulation), were likely to perceive that teachers met their psychological-needs for intrinsic motivation, and to have greater intentions to engage in the target-language culture and community, which in turn predicted their learning-related beliefs (e.g., a high sense of English efficacy), learning-related behaviors (e.g., active involvement in learning activities), and English achievement. Nevertheless, students who were primarily regulated by externally-controlled reasons for learning English, including introjected regulation (i.e., performing a task to avoid feeling guilty), external regulation (i.e., performing a task for obtaining rewards), and parental persuasion (i.e., parents' influence toward learning English) were also likely to perceive that their teachers met their psychological-needs, which may have influenced their intention to integrate into the target-language culture and community. This dissertation study investigated Chinese undergraduate English learners' motivation for learning English as a foreign language and the consequent learning outcomes. Findings of this study broadened understandings of students' motivation for learning a language by showing how students' initial reasons for learning a language may influence their learning beliefs, classroom engagement, and language achievement. Keywords: Chinese undergraduate English majors, motivation, psychological need satisfaction, integrative orientation, self-determination theory
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Chen_fsu_0071E_15311_P
- Format
- Set of related objects
- Title
- Large-Scale Multi-Target Tracking Problem for Interacting Targets.
- Creator
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Vo, Garret Dan, Park, Chiwoo, Srivastava, Anuj, Liang, Zhiyong (Richard), Vanli, Omer Arda, Florida State University, FAMU-FSU College of Engineering (Tallahassee, Fla.),...
Show moreVo, Garret Dan, Park, Chiwoo, Srivastava, Anuj, Liang, Zhiyong (Richard), Vanli, Omer Arda, Florida State University, FAMU-FSU College of Engineering (Tallahassee, Fla.), Department of Industrial and Manufacturing Engineering
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The unique physical properties of nanoparticles depend on their sizes and shapes. Therefore, an ability to precisely control the size of nanoparticles and tune their morphology will allow scientists and engineers to modify their physical properties, which will lead to many potential applications. To precisely control nanoparticles' sizes and shapes requires a deep understanding of their growth mechanism. To understand their growth mechanism, a direct observation and its quantitative analysis...
Show moreThe unique physical properties of nanoparticles depend on their sizes and shapes. Therefore, an ability to precisely control the size of nanoparticles and tune their morphology will allow scientists and engineers to modify their physical properties, which will lead to many potential applications. To precisely control nanoparticles' sizes and shapes requires a deep understanding of their growth mechanism. To understand their growth mechanism, a direct observation and its quantitative analysis are both necessary. In the direct observation study, the electron microscopy method has shown promises, because the in situ method enables researchers to see the growth process using video recordings. In these video recordings, each frame displays an image from an electron microscope. However, this method yields a vast number of electron images; therefore, analyzing these images to monitor the nanoparticles' growth is a challenging task. The objective of this dissertation is to develop an automation process to capture the complex growth event of nanoparticles in a sequence of electron microscope images. The automation process consists of two tasks: detect nanoparticles in an electron microscope image that has a non-uniform background and significant noise; and then track these detected nanoparticles in a large number of video frames obtained from a single camera. In each frame, complex interaction among these nanoparticles exists; therefore, the tracking algorithm will capture the complex interaction among these nanoparticles. Two solutions are proposed in this dissertation. To detect nanoparticles, an electron microscope image is converted to a binary image through a process called image binarization. To perform the image binarization step, the background of the electron microscope image is first estimated with a robust regression technique; then, it is subtracted from the input image. Afterwards, a global thresholding algorithm is applied to the subtracted outcome in order to achieve the binary image. To track these detected nanoparticles in a large number of video frames, an online algorithm has been created. This algorithm leverages the multi-way data association, which is capable of tracking complex interaction among nanoparticles but suffers from computational inefficiency for a large number of video frames. The online algorithm forms fragmented trajectories between two consecutive frames (i.e. frame-by-frame data association). When missed-association between nanoparticles occur, the algorithm augments these missed-associated nanopartiles to nanoparticles in the second frame in the frame-by-frame data association step. Then, the algorithm continues forming trajectories with the multi-way data association for the incoming video frame. When these augmented nanoparticles are associated within the sliding window, the algorithm initiates the creation of tracks, which connect missed-associated nanoparticles at their respective time frames to their correspondents at the incoming video frame. While working on the second solution, we also created a computer simulation model to generate multi-target datasets with their respective ground-truth associations.The generated datasets and their respective ground-truth associations will serve as a benchmark data to test and evaluate multi-target tracking algorithms. The simulation model serves two purposes: cover all complexity of multi-target tracking scenarios, which public datasets lack; and provide the ground-truth target tracking and association so that the evaluation of multi-target tracking algorithms can be performed without any manual video annotation process.
Show less - Date Issued
- 2019
- Identifier
- 2019_Summer_Vo_fsu_0071E_15279_P
- Format
- Set of related objects
- Title
- Fate of Mc252 Crude Oil from the Deepwater Horizon Accident in Northern Gulf of Mexico Permeable Sandy Beaches.
- Creator
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Kaba, John, Huettel, Markus, Miller, Thomas E., Chanton, Jeffrey P., Dewar, William K., Mason, Olivia Underwood, Florida State University, College of Arts and Sciences,...
Show moreKaba, John, Huettel, Markus, Miller, Thomas E., Chanton, Jeffrey P., Dewar, William K., Mason, Olivia Underwood, Florida State University, College of Arts and Sciences, Department of Earth, Ocean and Atmospheric Science
Show less - Abstract/Description
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In the spring of 2010, the MC 252 Deepwater Horizon well blow out lead to nearly five million barrels of Gulf of Mexico light sweet crude to be released into the northern Gulf at a depth of 1500 meters. Dispersant injected into the plume at the wellhead helped little to keep the oil below the surface. This dispersant inefficiency, coupled with the limited effectiveness of sea surface mitigation, allowed an estimated 150,000 barrels to impact the shores of the Northern Gulf of Mexico, from...
Show moreIn the spring of 2010, the MC 252 Deepwater Horizon well blow out lead to nearly five million barrels of Gulf of Mexico light sweet crude to be released into the northern Gulf at a depth of 1500 meters. Dispersant injected into the plume at the wellhead helped little to keep the oil below the surface. This dispersant inefficiency, coupled with the limited effectiveness of sea surface mitigation, allowed an estimated 150,000 barrels to impact the shores of the Northern Gulf of Mexico, from East Texas to the Western Florida Panhandle. Nearly half of the impacted coastline is comprised of permeable sandy beaches. The surface oil took several months to reach the shore, and over that time it was degraded by heat, UV light, oxygen, and microbes. The weathered oil final reached the shores of Pensacola Beach, Florida on June 22, 2010. In the surf zone, the weathered oil was mixed with sand to form Sediment-Oil-Aggregates (SOA) that sank in the swash zone between the beach and longshore bar. This SOA material was transported with longshore currents, and repeatedly buried and exhumed. The weathered oil also came ashore at the same time as Tropical Storm Lee, whose increased wave action cause some of the SOA material to be deposited and buried into the dry beach sediment above the high-water line. The goal of this dissertation is to investigate the fate of MC252 crude oil from the Deepwater Horizon accident on Northern Gulf of Mexico permeable sandy beaches. Sampling trips to Santa Rosa Island, Florida were performed monthly from July 2010 to July 2011, where sediment cores from the dry beach above the high-water line were taken. These cores were sectioned and incubated to measure microbial activity in response to the buried oil, using oxygen as a proxy, over the year after the oil came ashore. On these trips, SOA material on the beach and in the surf was collected, homogenized, and use for lab incubations to investigate the role of microbes, temperature, and mechanical stress due to wave action, on the degradation of SOA material in the surf zone. Column experiments were also performed to investigate the aerobic decomposition of SOA material in the coastal water column and permeable sediments. The time series incubations showed that clearly oiled sections of sediment had significantly higher oxygen consumption rates, compared to sections that were visibly clean. In October of 2010, beach cleaning crews used heavy machinery to exhume the top meter of beach, sieve out the large SOAs, and in the process homogenized the smaller oil particles throughout the top meter of beach sand, increasing the surface area available to microbes for degradation. By April of 2011, a clearly oiled layer in the beach was no longer visible. Along with decreasing visible oil in the dry sediment, SOA material in the swash zone also decreased during the year. In laboratory incubations, it was found that microbes play a large part in the degradation of the SOA material, with microbes accounting for 80% of the oxygen consumption in SOA incubations. Higher temperatures increased the rate of oxygen consumption, with warmer summer temperatures causing a 4-fold increase in oxygen consumption rates over winter temperatures. The mechanical stress of wave action also causes the SOA material to quickly fall apart. In incubations, SOA material was rotated at 0.5rpm, and SOAs were disintegrated within 24 hours. In column experiments, it was found that increased fluid front velocity increased the oxygen consumption rates of sediment with artificially weathered crude oil. In columns amended with SOA material, there was no difference in oxygen consumption compared to sediment with no SOA material. There was also very little DOC release in SOA columns where the water was amended with Corexit 9500®, suggesting that the small surface area to volume ratio of larger, intact SOAs buried in the sediment develop a tough crust of highly degraded hydrocarbons, protecting the more labile inside from microbial degradation. This research shows the importance of microbial activity, wave action, and temperature on the degradability of the Deepwater Horizon oil. The wave energy of the environment, coupled with the permeable sandy sediments and warm temperature of the Florida summer, all contributed to the rapid degradation of the oil.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Kaba_fsu_0071E_15186
- Format
- Thesis
- Title
- The Few, the Proud: Gender and the Marine Corps Body.
- Creator
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Patterson, Sarah Elizabeth, Sinke, Suzanne M., Moore, Dennis, Piehler, G. Kurt, Upchurch, Charles, Koslow, Jennifer Lisa, Florida State University, College of Arts and Sciences,...
Show morePatterson, Sarah Elizabeth, Sinke, Suzanne M., Moore, Dennis, Piehler, G. Kurt, Upchurch, Charles, Koslow, Jennifer Lisa, Florida State University, College of Arts and Sciences, Department of History
Show less - Abstract/Description
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This project examines the changing shape of femininity and masculinity for Marines from World War I to the Korean War, focusing on the ways that the body serves as a canvas for demonstrating the negotiation of gender roles and the Marine Corps image. Gender has been a constant issue for the military. However, few historical studies consider the ways that the Marine Corps’ status as a particularly elite, masculine institution impacted the desired image of femininity for its female recruits and...
Show moreThis project examines the changing shape of femininity and masculinity for Marines from World War I to the Korean War, focusing on the ways that the body serves as a canvas for demonstrating the negotiation of gender roles and the Marine Corps image. Gender has been a constant issue for the military. However, few historical studies consider the ways that the Marine Corps’ status as a particularly elite, masculine institution impacted the desired image of femininity for its female recruits and how this image changed over time. The hyper-masculine nature of the military influenced the relationship between masculinity and femininity for both servicemen and women. My project looks at these changes in masculinity and femininity by placing gender identity within the context of the hyper-masculine military environment. R.W. Connell’s Masculinities, Anthony Rotundo’s American Manhood, and Aaron Belkin’s Bring Me Men assist in putting gender identity in the military into a more complex and nuanced context, especially focusing on masculinity’s centrality to the American military institution. Belkin, in particular, argues that military masculinity has never been entirely devoid of feminine elements. Aspects of femininity have long been a part of military life, from domestic responsibilities often associated with women to close same sex companionship between soldiers. While generally considered less masculine when taken as separate behaviors, they did not seem problematic in a military context. This leads to the conclusion that the incorporation of women into the military was not a radical introduction of femininity into a solely masculine environment, but rather a more complicated shift in the relationship between gender and occupation. This project’s conclusions support this kind of closer relationship between masculinity and femininity in the military context. Francine D’Amico and Laurie Weinstein’s Gender Camouflage, Melissa Ming Foynes, Jillian C. Shipherd, and Ellen F. Harrington’s “Race and Gender Discrimination in the Marines,” Melissa S. Herbert’s Camouflage Isn’t Only for Combat, Heather J. Höpfl’s “Becoming a (Virile) Member: Women and the Military Body,” Leisa D. Meyer’s Creating GI Jane, and Sara L. Zeigler and Gregory G. Gunderson’s Moving Beyond GI Jane address this shift in gender relations and the resulting tension between military men and women throughout the twentieth and twenty-first centuries I investigate changes in military gender identity by looking at legislation and regulations controlling gender and sexuality in the military, media depictions of Marines, and the ways that gendered military identity plays out on the body, especially through physical fitness, uniforms, and bodily maintenance. The Marine Corps documented their ideas of normative masculine and feminine Marine bodies through pictures, propaganda, and newsletters. Examination of these different characteristics of the ideal body allow for comparison through time of the ways that Marines presented themselves to society, as well as the methods the Corps utilized to encourage images advantageous to its purposes. Such comparisons show changes in the perception of gender identity through time, as well as new norms of appearance and behavior that developed. This evidence illustrates the complicated and often contradictory relationship between masculinity and femininity that all Marines, male and female, negotiate. This project illustrates the significance of these frequently gendered representations of Marine bodies through time. They show the negotiation of gender within the Corps and how assumptions of gender roles shifted from one war to the next. Understanding these changes helps explain the tensions and conflicts which developed between male and female Marines during different periods, as well as creating a framework for investigating these tensions into the contemporary era. The primary sources used for this project focus on the appearance of Marines, male and female, and include national legislation related to Marines and military regulations enforcing conformity in dress and appearance. Memoirs of Marines, publications intended for Marine readers, as well as publications depicting Marines aid in gaining a better idea of the function of gender for Marines, especially in relation to their interactions between male and female Marines. These documents show the changes occurring in expectations about femininity and masculinity in the Marine Corps over time. Public publications, such as general interest magazines, women’s magazines, and newspapers, showed public ideas of Marines’ gender and their relationship to civilian American gender ideals. This project explores the changing shape of normative Marine Corps bodies and the impact of ideas of masculinity and femininity in their deployment as methods of supporting the services’ goals.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Patterson_fsu_0071E_14978
- Format
- Thesis
- Title
- Solid-State NMR Studies on Battery Materials.
- Creator
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Li, Xiang, Hu, Yan-yan, Zheng, Jianping, Marshall, Alan G. (Alan George), Zhu, Lei, Yu, Zhibin, Florida State University, College of Arts and Sciences, Department of Chemistry...
Show moreLi, Xiang, Hu, Yan-yan, Zheng, Jianping, Marshall, Alan G. (Alan George), Zhu, Lei, Yu, Zhibin, Florida State University, College of Arts and Sciences, Department of Chemistry and Biochemistry
Show less - Abstract/Description
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As society demand for energy continues to rise, advanced electrochemical energy storage technologies are needed to address the challenges associated with effectively using the rechargeable energy as the alternative source to fossil fuels. Various types of alkali-ion rechargeable batteries have attracted notable attentions. The specific capacity of these batteries is mainly limited by the cathode materials. Among them, Lithium ion batteries have the desirable combination of high energy density...
Show moreAs society demand for energy continues to rise, advanced electrochemical energy storage technologies are needed to address the challenges associated with effectively using the rechargeable energy as the alternative source to fossil fuels. Various types of alkali-ion rechargeable batteries have attracted notable attentions. The specific capacity of these batteries is mainly limited by the cathode materials. Among them, Lithium ion batteries have the desirable combination of high energy density and power density, making them the most popular energy storage technique in worldwide applications, such as in cell phone, electric cars. Extensive studies have been done to improve the specific capacity by searching for high energy-density cathode materials. The capacities of LIBs are limited by cathodes. Sodium-ion batteries (SIBs) are an emerging electrochemical energy storage technology that has high promise for electrical grid level energy storage. High capacity, long cycle life, and low cost cathode materials are very much desired for the development of high performance SIB systems. Sodium manganese oxides with different compositions and crystal structures have attracted much attention because of their high capacity and low cost. Nuclear Magnetic Resonance (NMR) is a powerful tool to determine the nuclear (Li, Na, O, etc) local structural environments.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Li_fsu_0071E_15019
- Format
- Thesis
- Title
- Spatial and Temporal Drivers of Arctic and Boreal Dissolved Organic Matter Composition across Latitudinal Gradients.
- Creator
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Johnston, Sarah Ellen, Spencer, Robert G. M., Marshall, Alan G. (Alan George), Chanton, Jeffrey P., Huettel, Markus, Knapp, Angela Noel, Florida State University, College of...
Show moreJohnston, Sarah Ellen, Spencer, Robert G. M., Marshall, Alan G. (Alan George), Chanton, Jeffrey P., Huettel, Markus, Knapp, Angela Noel, Florida State University, College of Arts and Sciences, Department of Earth, Ocean and Atmospheric Science
Show less - Abstract/Description
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Northern high-latitude regions are undergoing rapid changes as the Arctic warms at about twice the rate of mid-latitudes. Climate change is causing permafrost thaw, vegetation and hydrologic shifts, and the increased incidence of wildfire, all of which have major implications for regional and global carbon (C) cycling. In this study, I evaluate dissolved organic matter (DOM) composition across temporal and spatial gradients using chromophoric DOM (CDOM), the biomarker lignin phenol, and...
Show moreNorthern high-latitude regions are undergoing rapid changes as the Arctic warms at about twice the rate of mid-latitudes. Climate change is causing permafrost thaw, vegetation and hydrologic shifts, and the increased incidence of wildfire, all of which have major implications for regional and global carbon (C) cycling. In this study, I evaluate dissolved organic matter (DOM) composition across temporal and spatial gradients using chromophoric DOM (CDOM), the biomarker lignin phenol, and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). The goal of this dissertation was to improve spatial and temporal understanding of DOM composition and cycling across aquatic gradients by improving spatial (Chapter 1) and temporal (Chapter 2) coverage of DOM composition, and using space for time gradients to understand the seasonal and landscape scale controls on DOM composition in lakes and rivers (Chapters 3 and 4, respectively) and how they may change into the future. Finally, an overarching theme of these studies were the utilization of optical measurements to estimate dissolved organic carbon (DOC) concentration and DOM composition for future applications for in situ and remote sensing technology. By including an understudied, mid-sized watershed in pan-Arctic flux estimates as a model for the unsampled portion of the pan-Arctic watershed (i.e. not encompassed in the major six Arctic rivers from which historic estimates are extrapolated) DOC flux estimates were increased from 27 Tg C to 34 Tg C annually to the Arctic Ocean. Additionally, the residence time of lignin and thus terrestrial DOM was further constrained from previous studies to 0.5 to 1.8 years. This refinement of the pan-Arctic flux estimate and terrestrial DOM residence time is important for the accurate assessment of land-ocean C fluxes and their implications for future change. Temporal DOM dynamics were also evaluated in both rivers and lakes. Diel lake sampling revealed that seasonal variability accounted for the greatest changes in DOM composition and underscored the need to sample lakes seasonally while regular diel trends were not observed. Finally, using space for time transitions in both lakes and rivers the seasonal and landscape drivers of DOM composition were evaluated to allow future projections in a changing Arctic. In lakes that were relatively hydrologically disconnected there was lower CDOM compared to hydrologically connected lakes and a strong decoupling of DOC from CDOM. Further evidence showed that DOM in these lakes was driven by autochthony and that a future drier climate is unlikely to cause browning in these lakes as suggested by recent research. In rivers, where hydrologic connectivity is high, the watershed relief, soils and vegetation played an important role in determining DOM composition. Lower DOC yields and more aliphatic DOM were mobilized in watersheds underlain by continuous permafrost compared to discontinuous permafrost. Together these studies show the utility of space for time gradients to project future change and the use of CDOM parameters as a proxy for DOC concentration and DOM composition. Taken together these results allow us to make projections for boreal and arctic change, as well as allow future studies to improve spatial and temporal resolution via CDOM parameters.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Johnston_fsu_0071E_15076
- Format
- Thesis
- Title
- Investigations into Structure-Property Relationships of Novel Polymers Synthesized Primarily from Bio-Renewable Resources.
- Creator
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Kieber, Robert John, Kennemur, Justin Glenn, Alamo, Rufina G., Schlenoff, Joseph B., Miller, Brian G., Florida State University, College of Arts and Sciences, Department of...
Show moreKieber, Robert John, Kennemur, Justin Glenn, Alamo, Rufina G., Schlenoff, Joseph B., Miller, Brian G., Florida State University, College of Arts and Sciences, Department of Chemistry and Biochemistry
Show less - Abstract/Description
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This dissertation investigates the synthesis and characterization of polymers primarily derived from renewable biomass sources, along with the structure-property influences on material properties. One polymer that has garnered interest as a promising value-added material is poly(2-vinylfuran) (PVF), an analog to styrene (S) derived from hemicellulose. Previous reports have determined the sole effective polymerization method to be through an emulsion. Investigations into this peculiar...
Show moreThis dissertation investigates the synthesis and characterization of polymers primarily derived from renewable biomass sources, along with the structure-property influences on material properties. One polymer that has garnered interest as a promising value-added material is poly(2-vinylfuran) (PVF), an analog to styrene (S) derived from hemicellulose. Previous reports have determined the sole effective polymerization method to be through an emulsion. Investigations into this peculiar observation herein determined that compartmentalization of the propagating chains allows for radical propagation, which was found to be an order of magnitude faster than for styrene. Further analysis of kinetics and material properties of the resulting polymers were investigated. In an alternate thrust, biomass derived isohexides were studied in detail to determine the influence of the inherent stereocenters on resulting polymer properties. Novel polyurethanes were synthesized from isosorbide (IS) and isomannide (IM) derived diisocyanates, as well as 2,5-bishydroxymethylfuran (BHMF) in varying feed ratios. It was concluded that the difference in stereochemistry significantly influenced chain behavior and the presence of entanglements, contributing significantly to the observed mechanical behavior. In an alternate thrust, the reactivity differences of the two chiral alcohols on IS were utilized to synthesize various asymmetric monomers capable of chain growth polymerizations. The resulting polymers were of significantly higher molecular weight and showed interesting thermal behavior due to the rigidity of the isohexide core. An additional investigation was conducted into the mechanical and viscoelastic properties of poly(4-phenylcylcopentene) (P4PCP) and its hydrogenated counterpart (H2-P4PCP), which is a novel ethylene-styrene (ES) copolymer analog previously synthesized in our lab. Both polymers were found to be quite ductile with glasstomeric behavior due to the proximity of the Tg to room temperature (~17 °C). Both polymers were found to have quite high elastic recovery and polymer creep, indicating the greater contribution of viscous behavior to the overall polymers. The precise arrangement of styrene (S) units along the backbone along with the lack of atactic polystyrene (PS) homopolymers was found to significantly influence material properties compared to previously synthesized ES copolymers.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_KieberIII_fsu_0071E_15060
- Format
- Thesis
- Title
- Machine Learning Algorithms and Applications for Lidar, Images, and Unstructured Data.
- Creator
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Parajuli, Biswas, Kumar, Piyush, She, Yiyuan, Liu, Xiuwen, Zhao, Peixiang, Florida State University, College of Arts and Sciences, Department of Computer Science
- Abstract/Description
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Aerial imagery of geographic regions in the form of Lidar and RGB images aids different tasks like survey, urban-planning, mapping, surveillance, navigation, localization and others. Most of the applications, in general, require accurate segmentation and identification of variety of objects. The labeling is mostly done manually which is slow and expensive. This dissertation focuses on roads as the object of interest and aims to develop methods to automatically extract road networks from both...
Show moreAerial imagery of geographic regions in the form of Lidar and RGB images aids different tasks like survey, urban-planning, mapping, surveillance, navigation, localization and others. Most of the applications, in general, require accurate segmentation and identification of variety of objects. The labeling is mostly done manually which is slow and expensive. This dissertation focuses on roads as the object of interest and aims to develop methods to automatically extract road networks from both aerial Lidar and images. This work investigates deep convolutional architectures that can fuse the two types of data for road segmentation. It presents a design which performs better than the state-of-the-art RGB-only methods. It also describes a simple, disk-packing based algorithm which translates the road segmentation into a OpenStreetMap-like road network graph while giving improved accuracies in terms of connectivity, topology and reduction in outliers. This dissertation also presents a truth finding algorithm based on iterative outlier removal which can be used for reaching a consensus when information sources or ensembles of trained machine learning models are at a conflict. In addition, it introduces a full and published book on Python programming based on the experiences this research provided. The hope is to contribute towards teaching and learning Python.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Parajuli_fsu_0071E_14920
- Format
- Thesis
- Title
- Giving Voice to the Voiceless: Testimonies of Stolen Babies' Victims during the Francoist Dictatorship and Democracy.
- Creator
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Lencina, Maravillas, Cappuccio, Brenda L., Poey, Delia, Galeano, Juan Carlos, Suárez, Virgil, Florida State University, College of Arts and Sciences, Department of Modern...
Show moreLencina, Maravillas, Cappuccio, Brenda L., Poey, Delia, Galeano, Juan Carlos, Suárez, Virgil, Florida State University, College of Arts and Sciences, Department of Modern Languages and Linguistics
Show less - Abstract/Description
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The subject of my doctoral dissertation is the abduction and illegal adoptions of children of Republican parents during the Franco dictatorship (1939-1975) and the continued struggle of thousands to acknowledge and resolve this violation by the current Spanish leadership. While my primary focus is the Franco regime, my research has the potential to impact and support the efforts of thousands of women across the globe who have been violated similarly in places like Ireland, Argentina, Serbia,...
Show moreThe subject of my doctoral dissertation is the abduction and illegal adoptions of children of Republican parents during the Franco dictatorship (1939-1975) and the continued struggle of thousands to acknowledge and resolve this violation by the current Spanish leadership. While my primary focus is the Franco regime, my research has the potential to impact and support the efforts of thousands of women across the globe who have been violated similarly in places like Ireland, Argentina, Serbia, Colombia, Mexico, Guatemala, Thailand, South Africa and Australia. Tragically, the abuse inflicted to women and children has no boundaries. The goal of this project is to help shed light upon both the historical atrocities perpetrated during the Franco Regime and the official denial, indifference and inaction of the current government in Spain today towards these victims and their survivors. At a global level, it can embolden victims in other countries to share their stories without fear of denial or outright dismissal. Like all dictators, General Franco refused to tolerate any dissidence or opposition. He crushed any such dissent through executions and imprisonment. Many of those executed or imprisoned were mothers with small children or pregnant women. They were deemed to be “unfit” to raise children due to their real or perceived lack of support for Franco’s regime. His goal was to separate children from parents with different beliefs and to reeducate them. These children were then illegally put up for adoption and placed with “proper” Francoist supporters. Franco and his sycophants believed that this would allow the children to be reformed and indoctrinated to become adults with acceptable Nationalist-Catholic beliefs and ideology supportive of Franco. Many babies were taken directly from their mothers at birth, told the baby was dead and sold to politically preferred families. This deceitful, ruthless and illegal activity continued well into the 1990s during democracy. What started as a way of eliminating opposing ideologies and ensuring repression evolved into a very lucrative business, supported and encouraged by members of the church, doctors and judges who became personally wealthy as a result. As part of my research, I conducted interviews with the mothers whose babies were taken from them, and with the babies, now adults, who are desperately seeking answers about their true identity and biological family. This topic has only recently emerged into the mainstream consciousness and discourse. Since there is not a Truth and Reconciliation Commission set up in Spain to make this information accessible to the public, my research, which consists in large part of on-site research and participative interviews, will help develop and share an accurate and more fully nuanced portrait of the current struggle for resolution by its victims in Spain and everywhere that women fight this same struggle for justice and truth.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Lencina_fsu_0071E_15051
- Format
- Thesis
- Title
- Impacts of Microbial Community Structure on Denitrification Rates in the Rhizosphere of J. Roemerianus and S. Alterniflora in a Gulf of Mexico Mixed Marsh.
- Creator
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Petet, Rachel Anne, Mason, Olivia Underwood, Knapp, Angela Noel, Kranz, Sven Alexander, Chadwick, Brian P., Florida State University, College of Arts and Sciences, Department of...
Show morePetet, Rachel Anne, Mason, Olivia Underwood, Knapp, Angela Noel, Kranz, Sven Alexander, Chadwick, Brian P., Florida State University, College of Arts and Sciences, Department of Earth, Ocean and Atmospheric Science
Show less - Abstract/Description
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Marshes are particularly important ecosystems, providing long-term soil carbon storage, flood protection and nutrient filtration. Nutrient filtering, specifically nitrate removal, is largely the result of belowground microbially mediated denitrification. Previous studies reveal that denitrification rates differ in Spartina alterniflora and Juncus roemerianus patches but determining how the associated microbial communities contribute to these differences is challenged by the inherent...
Show moreMarshes are particularly important ecosystems, providing long-term soil carbon storage, flood protection and nutrient filtration. Nutrient filtering, specifically nitrate removal, is largely the result of belowground microbially mediated denitrification. Previous studies reveal that denitrification rates differ in Spartina alterniflora and Juncus roemerianus patches but determining how the associated microbial communities contribute to these differences is challenged by the inherent physicochemical variability in the belowground of plants at different elevations in the marsh. Here we had a unique opportunity to evaluate denitrification rates and the belowground microbial community in J. roemerianus and S. alterniflora collocated at the same elevation, thus experiencing the same inundation cycles, in a saltwater marsh. To determine denitrification rates sediment slurry incubations (15N-nitrate) were used. The microbial community structure was determined using “iTag” sequencing of 16S rRNA gene amplicons. Slurry experiments revealed that denitrification rates were consistently higher in J. roemerianus compared to S. alterniflora. Analysis of 16S rRNA exact amplicon sequence variants (ASVs) showed that the microbial communities were similar in both plant types, although oscillations in the abundance of some ASVs was observed. To link the rate and microbial community data, Random Forest Modeling (RFM) was used to determine if specific microbes could be accurate predictors of higher or lower denitrification rates. RFM identified ASVs classified as Deltaproteobacteria; Desulfobacteraceae and Chloroflexi; Anaerolineaceae as the most important predictors of denitrification rates. These microbial predictors were also identified as core members of the rhizosphere of both plants. The Desulfobacteraceae core member, indicates higher denitrification rates, while the Anaerolineaceae core member points towards lower rates of nitrate removal. Desulfobacteraceae are known sulfate reducers, however some have been shown to utilize both nitrate and sulfate to grow chemolithoautotrophically by coupling sulfide oxidation to dissimilatory nitrate reduction. In fact, this pathway was identified in metagenomic and metatranscriptomic datasets from one of the samples analyzed herein. Collectively, our data revealed that J. roemerianus promoted greater belowground nitrate removal compared to S. alterniflora which may result from different plant characteristics that lead to oscillations in the abundance and activity of core members of the microbial community that can serve as predictors of denitrification rates. Further, the data suggested that this reaction may be mediated by previously unsuspected sulfate reducing bacteria in our saltmarsh ecosystem.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Petet_fsu_0071N_15142
- Format
- Thesis
- Title
- Petrolia.
- Creator
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LoPilato, Daniel Vincent, Horack, Skip, Howard, Ravi, Jaffe, Aaron, Florida State University, College of Arts and Sciences, Department of English
- Abstract/Description
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In 1870, Sloop Walker leaves his home to live and work in the oil-bearing region of northwestern Pennsylvania referred to as Petrolia. After becoming involved with a local eccentric known only as the Baron, Sloop arrives in the fictional town of Earth Circuit, where a crew of seasoned rig-builders initiates him into the peculiar and transient lifestyle of the workers transforming Pennsylvania’s forests into centers of industry. But when Sloop encounters an underground network of revolutionary...
Show moreIn 1870, Sloop Walker leaves his home to live and work in the oil-bearing region of northwestern Pennsylvania referred to as Petrolia. After becoming involved with a local eccentric known only as the Baron, Sloop arrives in the fictional town of Earth Circuit, where a crew of seasoned rig-builders initiates him into the peculiar and transient lifestyle of the workers transforming Pennsylvania’s forests into centers of industry. But when Sloop encounters an underground network of revolutionary agents, he begins to view his labor in the forests of Petrolia as trespass against a sacred space. Inspired by history and theory alike, Petrolia examines an America haunted by its rapid expansion and conjures a landscape teetering on the edge of both radical progress and utter collapse.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_LoPilato_fsu_0071N_15043
- Format
- Thesis
- Title
- Principles-Based Accounting Standards and Regulatory Enforcement.
- Creator
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Kim, Mark P., Morton, Richard M., Autore, Donald M., Billings, Bruce K., Pierce, Spencer R., Florida State University, College of Business, Department of Accounting
- Abstract/Description
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Practitioners claim that rules-based accounting standards create a safe harbor with respect to liability risk. In contrast, regulators argue that principles-based reporting norms better protect preparers and auditors from undue enforcement threats due to its emphasis on substance over form (SEC, 2003). I add to this debate with a proprietary dataset of accounting oversight from South Korea in conjunction with their mandated adoption of IFRS in 2011. This dataset, which archives investigative...
Show morePractitioners claim that rules-based accounting standards create a safe harbor with respect to liability risk. In contrast, regulators argue that principles-based reporting norms better protect preparers and auditors from undue enforcement threats due to its emphasis on substance over form (SEC, 2003). I add to this debate with a proprietary dataset of accounting oversight from South Korea in conjunction with their mandated adoption of IFRS in 2011. This dataset, which archives investigative details and enforcement actions related to accounting allegations, allows me to infer whether a switch to more principles-based IFRS reporting amplifies enforcement risk. My results suggest that IFRS enforcements are associated with a higher propensity of violation detections. Compared to K-GAAP violations, I also find that stock price discounts and earnings response coefficient declines are more pronounced when violations are announced under IFRS regimes. Collectively, these results are relevant in light of the FASB's and IASB's joint proposal advocating a more principles-based approach to standard setting (FASB, 2002, 2010).
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Kim_fsu_0071E_15079
- Format
- Thesis
- Title
- Ring Opening Metathesis Polymerization of Low Ring Strain Species.
- Creator
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Neary, William James, Kennemur, Justin Glenn, Alamo, Rufina G., Alabugin, Igor V., Smith, Joel M., Florida State University, College of Arts and Sciences, Department of...
Show moreNeary, William James, Kennemur, Justin Glenn, Alamo, Rufina G., Alabugin, Igor V., Smith, Joel M., Florida State University, College of Arts and Sciences, Department of Chemistry and Biochemistry
Show less - Abstract/Description
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The ring opening metathesis polymerization of cyclopentene has been historically challenging due to the low ring strain nature of the cyclic olefin. Due to these challenges, the ROMP of this unique monomer has been overlooked for many years. We aim to shine light on this material and hopefully highlight its synthetic utility in areas that lack synthetic diversity in this thesis. We began our adventure on the ROMP of cyclopentenes with the investigation of 4-phenylcyclopentene. The polymers...
Show moreThe ring opening metathesis polymerization of cyclopentene has been historically challenging due to the low ring strain nature of the cyclic olefin. Due to these challenges, the ROMP of this unique monomer has been overlooked for many years. We aim to shine light on this material and hopefully highlight its synthetic utility in areas that lack synthetic diversity in this thesis. We began our adventure on the ROMP of cyclopentenes with the investigation of 4-phenylcyclopentene. The polymers produced from this monomer upon hydrogenation produced a precision ethylene-styrene copolymer with a phenyl on every 5th carbon backbone equating to a material with 71.2% styrene (w/w). Not only was this an area where single-site catalyst struggled, but this was the first time these polymers were produced in a precise manner. These materials lead our group to many other investigations such as investigations on its mechanical properties, post-polymerization modifications, and also a handful of collaborations. While this material brought a new interest of precision based materials to the Kennemur lab and laid one of the core foundations of our labs, it did leave some things to be desired, notably, the control of this polymerization process. Our emerging interest in this polymer quickly led us to find that controlling the polymerizations of cyclopentene based monomers using ruthenium based catalyst were problematic. With no system in place to control polymerizations, our group came up with a new methodology that utilizes cyclopentenes low ring strain and common thermodynamic principles to control the polymerizations. In this new methodology, termed variable temperature-ROMP, the simple variation of reaction temperature allowed for total control over the polymerization process for the first time. With this new methodology in hand, we aimed to synthesize complex architectures in which the newly formed precision materials were needed. The first structures we targeted were bottlebrush polymers. The successful polymerizations produced precision grafted polymers with grafts on every fifth backbone carbon, similar to the most common bottlebrush structures, poly(norbornene)s. This account was our first success in the realm of precision complex architectures, and hopefully many more architectures using these materials and the definitive correlation of structure to material properties will ensue. Out of all of experiments a graduate student imagines when joining a polymer lab, depolymerizing ones precious polymer back into starting material is the last thing they imagine. However, the unique topology of polypentenamers made this imagination a reality. Realizing that bottlebrush polymers produced from polypentenamers depolymerize in a unzipping mechanism unlocked a lot of possibilities for the future of this lab. This thesis will discuss in detail all of the success of polypentenamers in the Kennemur lab over the years and current work aimed to better understand these materials.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Neary_fsu_0071E_15084
- Format
- Thesis
- Title
- Old Time Fiddling in Florida: Implications for Music Education.
- Creator
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Ivey, Aisha Suzanne, Madsen, Clifford K., Holzman, Bruce, Geringer, John M., Bugaj, Kasia, Darrow, Alice-Ann, Florida State University, College of Music
- Abstract/Description
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Florida has a rich history of traditional old time fiddling and the fiddle was the most popular musical instrument among early pioneers in Florida. Fiddlers were revered members of the community, often playing for social dances called frolics. Slaves that were brought from Africa mingled with settlers from Western Europe in the Southeastern United States, their different fiddle styles blending into a new genre of music that incorporated aspects of both cultures. Dances on plantations served...
Show moreFlorida has a rich history of traditional old time fiddling and the fiddle was the most popular musical instrument among early pioneers in Florida. Fiddlers were revered members of the community, often playing for social dances called frolics. Slaves that were brought from Africa mingled with settlers from Western Europe in the Southeastern United States, their different fiddle styles blending into a new genre of music that incorporated aspects of both cultures. Dances on plantations served as one of the few places where whites and African Americans socialized together. Fiddlers also played at home with their families, sharing music across generations. After the development of radio, musicians would often perform as part of live radio shows and record companies produced old time music recordings featuring fiddlers that influenced musicians near and far. Contests became popular after Henry Ford began promoting traditional dance and fiddling in the 1920s and 1930s and cities across Florida held contests or fiddlers conventions as part of community celebrations. The Future Farmers of America sponsored string bands which often included a fiddle player in the 1950s. The Florida Folk Festival has promoted traditional music and dance, featuring many fiddlers since its beginning in 1953. The Florida State Fiddlers Association holds the official state fiddle contest every year along with an annual convention that brings musicians together from all around the region. Further incorporation of traditional music in the curriculum could offer multiple advantages, including creating a more equitable learning experience for students.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Ivey_fsu_0071E_14989
- Format
- Thesis
- Title
- Towards Automating the Establishment and Evolution of Software Traceability.
- Creator
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Mills, Chris (Christopher), Haiduc, Sonia, Blessing, Susan K., Chakraborty, Shayok, Zhao, Peixiang, Florida State University, College of Arts and Sciences, Department of...
Show moreMills, Chris (Christopher), Haiduc, Sonia, Blessing, Susan K., Chakraborty, Shayok, Zhao, Peixiang, Florida State University, College of Arts and Sciences, Department of Computer Science
Show less - Abstract/Description
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Software systems contain an immense amount of information captured in a variety of documents such as source code files, user documentation, use and test cases, bug reports, and system requirements among others. Relationships between these pieces of information -- called traceability links -- provide stakeholders broader knowledge about a system's constituent pieces and support many aspects of the software's development, maintenance, and evolution. Ideally, traceability links would be...
Show moreSoftware systems contain an immense amount of information captured in a variety of documents such as source code files, user documentation, use and test cases, bug reports, and system requirements among others. Relationships between these pieces of information -- called traceability links -- provide stakeholders broader knowledge about a system's constituent pieces and support many aspects of the software's development, maintenance, and evolution. Ideally, traceability links would be documented as software artifacts are produced. For instance, as they work, developers would document which test cases exercise which code segments or which code classes implement which use cases. However, this is typically not the case. Due to organizational issues such as tight timelines for product delivery and lack of buy-in by project managers, software traceability is often a secondary concern. To address this situation and improve traceability for a system post hoc, stakeholders can perform Traceability Link Recovery (TLR). TLR is a software engineering task that fills in missing traceability information by establishing (i.e., recovering) links between related artifacts. Through this process, software traceability can be promoted to naturally support various tasks such as program comprehension, concept localization, verifying test coverage, and ensuring that system and legal requirements are met. Unfortunately, performing TLR manually is an extremely time and resource intensive task. Therefore, even though prior work suggests it directly improves software maintenance and evolution, few systems have sufficient traceability to realize these benefits. The few that do are mainly safety-critical and have tight regulatory requirements where traceability is legally required for quality assurance to mitigate risk. First, we seek to reduce the cost of establishing traceability links through TLR by improving automatic approaches to it based on artifact similarity. Second, we seek to reduce the cost of maintaining existing traceability information by applying supervised machine learning. This technique mines statistical patterns from historical traceability information to build a predictive model that infers artifact relationships without the need for a human operator. As a result, software teams are able to realize the hitherto cost prohibitive benefits of traceability even for projects where there is no legal requirement for traceability to exist.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Mills_fsu_0071E_15138
- Format
- Thesis
- Title
- Two Sides of the Same Coin: Influences on Biracial Identification.
- Creator
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Krusemark, Danielle R., Plant, Ashby, McNulty, James, Hart, Sara, Florida State University, College of Arts and Sciences, Department of Psychology
- Abstract/Description
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We propose a model of biracial identification that incorporates biracial individuals’ closeness to each racial group of their background, the biracial individuals’ engagement with the culture associated with each racial group of their background, and others’ perceptions of the biracial individual’s racial identity as predictors. In testing our model, we set out to (1) examine multiple predictors simultaneously, (2) include biracial individuals’ personal identity-related behavior (i.e.,...
Show moreWe propose a model of biracial identification that incorporates biracial individuals’ closeness to each racial group of their background, the biracial individuals’ engagement with the culture associated with each racial group of their background, and others’ perceptions of the biracial individual’s racial identity as predictors. In testing our model, we set out to (1) examine multiple predictors simultaneously, (2) include biracial individuals’ personal identity-related behavior (i.e., cultural engagement) as a predictor, (3) rigorously test our model across multiple different assessments of biracial identification, and (4) investigate antecedents of the predictors of biracial identification in an attempt to clarify the literature. Study 1’s findings support previous research and demonstrate that closeness and others’ perceptions were important predictors of Black/White biracial identity. Study 2’s findings demonstrate that explicit biracial identification among Latino(a)/Caucasian individuals was predicted by how others perceive the biracial individual, how close the biracial individual was to Latino(a) people, and how often the biracial individual engaged with Latino(a) culture (via speaking Spanish). Our results hold implications for altering biracial identification and biracial individuals’ behavior with members of their parents’ races.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Krusemark_fsu_0071N_15235
- Format
- Thesis
- Title
- Siroheme Biosynthesis and Regulation of Siroheme Deficiency.
- Creator
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Pennington, Joseph Masters, Li, Hong, Jones, Kathryn M., Stroupe, M. Elizabeth (Margaret Elizabeth), Blaber, Michael, Yang, Wei, Florida State University, College of Arts and...
Show morePennington, Joseph Masters, Li, Hong, Jones, Kathryn M., Stroupe, M. Elizabeth (Margaret Elizabeth), Blaber, Michael, Yang, Wei, Florida State University, College of Arts and Sciences, Institute of Molecular Biophysics
Show less - Abstract/Description
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This thesis analyzes the structure and function of enzymes involved in the biosynthesis of the tetrapyrrole cofactor, siroheme, a critical cofactor used in sulfur and nitrogen metabolism in plants, bacteria, and some archaea. The multifunctional enzyme, siroheme synthase, from Salmonella typhimurium and two newly identified enzymes from Mycobacterium tuberculosis are used to understand how these ancient enzymes function. Additionally, the effects of siroheme deficiency in Escherichia coli are...
Show moreThis thesis analyzes the structure and function of enzymes involved in the biosynthesis of the tetrapyrrole cofactor, siroheme, a critical cofactor used in sulfur and nitrogen metabolism in plants, bacteria, and some archaea. The multifunctional enzyme, siroheme synthase, from Salmonella typhimurium and two newly identified enzymes from Mycobacterium tuberculosis are used to understand how these ancient enzymes function. Additionally, the effects of siroheme deficiency in Escherichia coli are studied in the context of sulfite reductase, an enzyme central to sulfur assimilation. Siroheme synthase (CysG) is a trifunctional enzyme responsible for the three terminal steps of siroheme biosynthesis in Salmonella typhimurium. The enzyme is composed of two functional modules, CysGA that accomplishes the first reaction, and CysGB that accomplishes the final two reactions. Interestingly, the same active site in CysGB is responsible for two very distinct chemistries where in other structural homologs, this is not observed. The work here shows how CysG distinguishes between these reactions to produce siroheme. Point mutagenesis, in vivo complementation assays, spectroscopic activity assays, and X-ray diffraction studies were used to piece together how CysG binds and orients the substrates and intermediates needed to catalyze siroheme. The co-crystal structures of precorrin-2-, sirohydrochlorin-, and cobalt-sirohydrochlorin-bound CysG were solved allowing characterization of the residues involved in binding and how their orientations change throughout catalysis. In Mycobacterium tuberculosis, the enzyme (or enzymes) responsible for siroheme production are unknown even though the siroheme cofactor is present in the bacteria’s sulfur metabolic pathway. This work reports the identification and characterization of two enzymes, MtCysG and MtChe1, that work together to produce siroheme. Molecular cloning teachniques, in vivo complementation assays, spectroscopic activity assays, and X-ray diffraction were used to isolate and identify MtCysG and MtChe1 as the enzymes necessary and sufficient for siroheme production. Interestingly, MtCysG is structurally homologous to Salmonella typhimurium CysG but is not a functional chelatase. Instead, MtChe1 fulfills this function to catalyze siroheme. Assimilatory NADPH-sulfite reductase (SiR) from Escherichia coli catalyzes the six-electron reduction of sulfite to sulfide. Two subunits, one a flavin-binding flavoprotein (SiRFP) and the other an iron-containing hemoprotein (SiRHP), assemble to make a holoenzyme ~800 kDa. How the two subunits assemble is not known. The iron-rich cofactors in SiRHP are unique because they are a covalent arrangement of a Fe4S4 cluster attached through a cysteine ligand to an iron-containing porphyrinoid called siroheme. The link between cofactor biogenesis and SiR stability is also ill-defined. Through hydrogen/deuterium exhchange, biochemical analysis and small-angle X-ray scattering (SAXS) we explore how the holoenzyme assembles and the structure of the N-terminal oligomerization domain of SiRHP. Apo-SiRHP forms a homotetramer, also dependent on its N-terminus, that is unable to assemble with SiRFP. From these results, we propose that homo-tetramerization of apo-SiRHP serves as a quality control mechanism to prevent formation of inactive holoenzyme in the case of limiting cellular siroheme.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Pennington_fsu_0071E_15083
- Format
- Thesis
- Title
- Survival Analysis Using Bayesian Joint Models.
- Creator
-
Xu, Zhixing, Sinha, Debajyoti, Schatschneider, Christopher, Bradley, Jonathan R., Chicken, Eric, Lin, Lifeng, Florida State University, College of Arts and Sciences, Department...
Show moreXu, Zhixing, Sinha, Debajyoti, Schatschneider, Christopher, Bradley, Jonathan R., Chicken, Eric, Lin, Lifeng, Florida State University, College of Arts and Sciences, Department of Statistics
Show less - Abstract/Description
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In many clinical studies, each patient is at risk of recurrent events as well as the terminating event. In Chapter 2, we present a novel latent-class based semiparametric joint model that offers clinically meaningful and estimable association between the recurrence profile and risk of termination. Unlike previous shared-frailty based joint models, this model has a coherent interpretation of the covariate effects on all relevant functions and model quantities that are either conditional or...
Show moreIn many clinical studies, each patient is at risk of recurrent events as well as the terminating event. In Chapter 2, we present a novel latent-class based semiparametric joint model that offers clinically meaningful and estimable association between the recurrence profile and risk of termination. Unlike previous shared-frailty based joint models, this model has a coherent interpretation of the covariate effects on all relevant functions and model quantities that are either conditional or unconditional on events history. We offer a fully Bayesian method for estimation and prediction using a complete specification of the prior process of the baseline functions. When there is a lack of prior information about the baseline functions, we derive a practical and theoretically justifiable partial likelihood based semiparametric Bayesian approach. Our Markov Chain Monte Carlo tools for both Bayesian methods are implementable via publicly available software. Practical advantages of our methods are illustrated via a simulation study and the analysis of a transplant study with recurrent Non-Fatal Graft Rejections (NFGR) and the termination event of death due to total graft rejection. In Chapter 3, we are motivated by the important problem of estimating Daily Fine Particulate Matter (PM2.5) over the US. Tracking and estimating Daily Fine Particulate Matter (PM2.5) is very important as it has been shown that PM2.5 is directly related to mortality related to the lungs, cardiovascular system, and stroke. That is, high values of PM2.5 constitute a public health problem in the US, and it is important that we precisely estimate PM2.5 to aid in public policy decisions. Thus, we propose a Bayesian hierarchical model for high-dimensional ``multi-type" responses. By ``multi-type" responses we mean a collection of correlated responses that have different distributional assumptions (e.g., continuous skewed observations, and count-valued observations). The Centers for Disease Control and Prevention (CDC) database provides counts of mortalities related to PM2.5 and daily averaged PM2.5 which are treated as responses in our analysis. Our model capitalizes on the shared conjugate structure between the Weibull (to model PM2.5), Poisson (to model diseases mortalities), and multivariate log-gamma distributions, and use dimension reduction to aid with computation. Our model can also be used to improve the precision of estimates and estimate at undisclosed/missing counties. We provide a simulation study to illustrate the performance of the model and give an in-depth analysis of the CDC dataset.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Xu_fsu_0071E_15078
- Format
- Thesis
- Title
- That Which They Write: Qur'Anic Healing and Material Agency in Morocco.
- Creator
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Riggan, James, Gaiser, Adam R., Luke, Trevor S., Hellweg, Joseph, Kelsay, John, Florida State University, College of Arts and Sciences, Department of Religion
- Abstract/Description
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Muslims in Morocco and across the globe practice a form of healing and exorcism known as al-ruqya al-shar‘iyya. The primary technique in this system of healing consists of Qur’anic recitation. In order to understand the role of the Qur’an as a healing object, this project examines the history of Qur’anic healing, classification of disease in al-ruqya al-shar‘iyya, the steps of Qur’anic operations, and the development of healing networks. Drawing from ethnographic research conducted primarily...
Show moreMuslims in Morocco and across the globe practice a form of healing and exorcism known as al-ruqya al-shar‘iyya. The primary technique in this system of healing consists of Qur’anic recitation. In order to understand the role of the Qur’an as a healing object, this project examines the history of Qur’anic healing, classification of disease in al-ruqya al-shar‘iyya, the steps of Qur’anic operations, and the development of healing networks. Drawing from ethnographic research conducted primarily in Fez, Morocco, I demonstrate that the Qur’an has material agency. Specifically, the Qur’an acts upon human and social bodies in order to heal them from a series of occult infections. I investigate the role of revelatory speech in Muslim societies and its relationship to individual human bodies. This investigation reveals not only information about how Muslims use the Qur’an in their daily lives, but also information about the relationship between the experience of human illness and a wider social environment. Al-ruqya al-shar‘iyya offers a book as a solution to these trials and tribulations. In the process, however, this system of healing demonstrates that the Qur’an in Muslim societies is a book that transcends both sound and page.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Riggan_fsu_0071E_15000
- Format
- Thesis
- Title
- Paumanok Islands.
- Creator
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Yurevitch, Theodore Vadim, Stuckey-French, Elizabeth, Howard, Ravi, Horack, Skip, Roberts, Diane, Florida State University, College of Arts and Sciences, Department of English
- Abstract/Description
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Paumanok Islands is a novel concerned with characters leaving histories of tyranny. The main protagonist is a woman named Lupe, whose life as a travel agent in a Long Island beach town is upended when she sees a picture that incidentally includes her husband, who disappeared more than ten years before. The novel follows her as she investigates what might have happened to him and why everyone connected with the photograph appears to be disappearing.
- Date Issued
- 2019
- Identifier
- 2019_Spring_Yurevitch_fsu_0071N_15161
- Format
- Thesis
- Title
- Safety and Efficacy of Sub-Maximal Aerobic Exercise during the Sub-Acute Phase of Recovery Following Sport-Related Concussion.
- Creator
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Worts, Phillip R., Kim, Jeong-Su, Levenson, Cathy W., Panton, Lynn B. (Lynn Bishop), Ormsbee, Michael J., Burkhart, Scott O., Florida State University, College of Human...
Show moreWorts, Phillip R., Kim, Jeong-Su, Levenson, Cathy W., Panton, Lynn B. (Lynn Bishop), Ormsbee, Michael J., Burkhart, Scott O., Florida State University, College of Human Sciences, Department of Nutrition, Food and Exercise Sciences
Show less - Abstract/Description
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Previous research suggests that strict rest following a concussion may prolong symptom presentation, but rest is still one of the most common treatments. Aerobic exercise has effectively reduced symptom burden and exercise intolerance in patients experiencing persistent symptoms longer than 30 days; however, treatment outcomes with sub-acutely concussed patients have not been described. PURPOSE: The purpose of this study was to (1) demonstrate the systemic dysfunction following a sport...
Show morePrevious research suggests that strict rest following a concussion may prolong symptom presentation, but rest is still one of the most common treatments. Aerobic exercise has effectively reduced symptom burden and exercise intolerance in patients experiencing persistent symptoms longer than 30 days; however, treatment outcomes with sub-acutely concussed patients have not been described. PURPOSE: The purpose of this study was to (1) demonstrate the systemic dysfunction following a sport-related concussion; and (2) examine the safety and efficacy of a 20-minute, low- or moderate-intensity (40% or 60% of HRMAX) controlled treadmill aerobic exercise as a therapeutic modality to improve cardioautonomic, neurological, and psychological function. METHODS: Thirty participants [16.0 ± 1.3 years; 19 sport-related concussed (SRC) and 11 healthy, non-concussed (NC)] were assigned to one of three treatments [1) 40% Age-Predicted HRMAX; 2) 60% Age-Predicted HRMAX; or 3) seated rest using a randomized double block design. SRC participants were evaluated between Day 3-7 of their injury and performed the treatment on the same day. Serial monitoring was performed at rest, during the acute bout of exercise, and recovery. The SRC participants were tracked until clinical recovery. RESULTS: Demographic variables were no different across groups. Autonomic function was not different across groups. Diastolic blood pressure and mean arterial pressure were significantly higher in the SRC participants. A greater percentage of exercising SRC participants improved on measures of ocular motor and vestibular function and symptom reporting compared to the resting SRC participants. 100% of the 40% HRMAX SRC participants and 86% of the 60% HRMAX SRC participants completed the session. Student-athletes who were prescribed exercise following their initial visit reported approximately five days faster than those who were prescribed rest in a previous clinical dataset. CONCLUSIONS: The 40% treatment reported 100% completion rates while both the 40% and 60% groups improved symptoms. Future studies should seek to examine middle school, collegiate, and professional athletes as well as non-athlete populations.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Worts_fsu_0071E_15044
- Format
- Thesis
- Title
- Magnetic Ordering and Magnetotransport at Molecular and Nano Scales.
- Creator
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Simmons, Danielle Theresa, Xiong, Peng, Shatruk, Mykhailo, Bonesteel, N. E., Baumbach, Ryan E., Piekarewicz, Jorge, Florida State University, College of Arts and Sciences,...
Show moreSimmons, Danielle Theresa, Xiong, Peng, Shatruk, Mykhailo, Bonesteel, N. E., Baumbach, Ryan E., Piekarewicz, Jorge, Florida State University, College of Arts and Sciences, Department of Physics
Show less - Abstract/Description
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The understanding of magnetic materials has become crucial to both fundamental physics and technological advancement. Particularly, the interplay between magnetic and electronic properties has given rise to such novel physics as high temperature superconductivity and colossal magnetoresistance. Some magnetic materials potentially hold the key to the realization of new nanoscale memory and logic devices. Specifically, spintronics and molecular electronics are two fields drawing increasing...
Show moreThe understanding of magnetic materials has become crucial to both fundamental physics and technological advancement. Particularly, the interplay between magnetic and electronic properties has given rise to such novel physics as high temperature superconductivity and colossal magnetoresistance. Some magnetic materials potentially hold the key to the realization of new nanoscale memory and logic devices. Specifically, spintronics and molecular electronics are two fields drawing increasing attention due to their potential to address the ever-increasing need for continued device miniaturization. This dissertation focuses on probing magnetic ordering and magnetotransport at molecular and nano scales utilizing electronic measurement techniques in order to gain further understanding of these complex phenomena. The first project of this dissertation deals with the effect of electronic phase separation (EPS), which is believed to be at the root of several emergent correlated electron phenomena. The goal of this research is to gain further insight into the complex interplay between the magnetic and electronic interactions in the ferromagnetic semimetal EuB6 under applied hydrostatic pressure. Previous studies under ambient pressure have uncovered a remarkable manifestation of EPS in the nonlinear Hall effect of EuB6. The magnetotransport measurements under pressure that we performed revealed an increase in carrier concentration as well as an increase in the critical magnetization needed to instigate the percolation of the phase-separated ferromagnetic entities (magnetic polarons). Also discovered by these measurements was an intermediate state between the paramagnetic insulating phase and the ferromagnetic metallic phase, thereby indicating that the electronic phase separation is even more complicated than previously predicted. Previous work had shown a lattice constriction concomitant with the formation and percolation of magnetic polarons, suggesting that magnetostriction might provide a direct probe of their formation. These results inspired us to measure the magnetostriction of EuB6 under applied pressure in the phase-separated regions. Not only did our measurements show a reduction in the constriction necessary for polaron formation, but also showed lattice expansion above and below the polaron formation temperatures. While hybrid organic-electronic devices hold much promise in a variety of applications, there are several hurdles to overcome before they can be fully integrated. One such family of materials, known as spin-crossover molecules, have high-spin and low-spin states that can be activated thermally and/or through photo excitation. Since each molecule has an independent spin state, devices built from these materials would not rely on long-range magnetic order. Additionally, advancements in molecular nano-patterning and self-assembly make these molecules attractive for bottom-up device integration. On the other hand, the tiny magnetic signals from the change of spin state of a small volume of molecules necessitate more sensitive devices for measuring nano patterns of monolayers of the molecules. In the second project of the dissertation, we demonstrate the feasibility of magnetic measurements of monolayers of spin-crossover molecules. Using a high-sensitivity Hall magnetometry technique, we showed measurements of the light induced excited spin state trapping effect in Fe(ptz)6(BF4)2. These experiments provide clear guidelines for improving the magnetic moment sensitivity by using semiconductor heterostructures free of photoconductivity.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Simmons_fsu_0071E_13940
- Format
- Thesis
- Title
- Metabolism and Redox Cycle in Human Mesenchymal Stem Cell with Culture Induced Senescence: Homeostasis and Rejuvenation.
- Creator
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Yuan, Xuegang, Ma, Teng, Logan, Timothy M., Grant, Samuel C., Li, Yan, Florida State University, FAMU-FSU College of Engineering, Department of Chemical and Biomedical Engineering
- Abstract/Description
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Human mesenchymal stem cells (hMSCs) isolated from various adult tissues are primary candidates in cell therapy and being tested in clinical trials for a wide range of diseases. The pro-regenerative and therapeutic properties of hMSCs are largely attributed to their trophic effects that coordinately modulate the progression of inflammation and enhance the endogenous tissue repair by host progenitor cells. However, immediately after isolation and upon in vitro culture expansion, hMSCs lose...
Show moreHuman mesenchymal stem cells (hMSCs) isolated from various adult tissues are primary candidates in cell therapy and being tested in clinical trials for a wide range of diseases. The pro-regenerative and therapeutic properties of hMSCs are largely attributed to their trophic effects that coordinately modulate the progression of inflammation and enhance the endogenous tissue repair by host progenitor cells. However, immediately after isolation and upon in vitro culture expansion, hMSCs lose their in vivo quiescent state and start to accumulate genetic and phenotypic changes that significantly alter their phenotypic properties, with increased heterogeneity and reduced therapeutic potential. The proliferation of hMSCs is limited and long-term culture-induced changes lead to cellular senescence and metabolic alteration, resulting in reduced therapeutic outcome. Since clinical application requires large-scale production of hMSCs with defined cellular properties, preserving cellular homeostasis during hMSCs in vitro expansion is a major barrier for hMSCs based industrial production. Once viewed as a mere consequence of the state of a cell, metabolism is now acknowledged to play regulatory roles in cellular events and signaling pathways that govern stem cell phenotype and functional properties. Regulation of hMSC metabolism via preconditioning strategies have been proposed to enhance hMSC stem cell properties. However, the mechanistic details of metabolic and redox alterations in hMSC replicative senescence are not well understood. The current study is to understand the role of energy metabolism in regulating hMSC cell fate during in vitro culture expansion to develop metabolic strategies to augment hMSCs therapeutic outcome. We studied therapeutic relevant properties of hMSC such as immune modulation with regards to the energy metabolism and cellular signaling networks in Chapter 2. Moreover, preconditioning of hMSCs via 3D aggregation regulated energy metabolism and redox cycle, further activated PI3K/Akt survival pathways. The therapeutic potentials of 3D aggregate-derived hMSCs were studied in a rat MCAO stroke model in Chapter 3. To address the scale-up production of hMSC aggregates for potential pre-clinical applications, a novel microcarrier-based bioreactor was developed with thermal-response materials. Non-invasive and non-enzymatic procedures can be achieved for hMSC expansion and 3D aggregates production as demonstrated in Chapter 4. At last, we reported the breakdown of cellular homeostasis in hMSCs with culture-induced senescence. Basic cellular characteristics including proliferation, regenerative potential, cell cycle, and mitochondrial function were disrupted during culture expansion of hMSCs. Culture-induced senescence of hMSCs also induced impairment of migratory ability and immunomodulation. Decrease of basal autophagy and mitophagy indicated the breakdown of cellular homeostasis in hMSCs with replicative senescence. GC-MS metabolomics and proteomics revealed the loss of glycolytic phenotype and energy homeostasis with replicative expansion of hMSCs, which reconfigured hMSCs to an insufficient energy production state from glycolysis towards OXPHOS following senescence. Rapid production of energy required for maintaining cellular properties of hMSCs induced mitochondrial dysfunction and redox imbalance. We also found that nicotinamide adenine dinucleotide (NAD+) plays a central role in regulating senescent response along with hMSC expansion. It has been shown that NAD+ repletion restored mitochondrial and stemness in improving longevity of rodent. Our results show a significant decline of NAD+ during rapid expansion of hMSCs. NAD+/Sirtuin axis plays a crucial role in restoring mitochondrial function, including mitochondrial biogenesis, membrane potential and electron transport ability. By repletion of NAD+ to senescent hMSCs, various stem cell properties were recovered. Together, the results revealed the mechanistic connection between metabolic regulation and hMSC fate and therapeutic potentials, and provided metabolic and redox target to maintain hMSC cellular homeostasis for cell therapy applications in manufacturing.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Yuan_fsu_0071E_15098
- Format
- Thesis
- Title
- On Un-Silencing Voices: Tarantism and the Gendered Heritage of Apulia.
- Creator
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Youngblood, Felicia K. (Felicia Kailey), Eyerly, Sarah, Caputi, Celia R., Bakan, Michael B., Gunderson, Frank D., Florida State University, College of Music
- Abstract/Description
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Derivatives of a thousand-year-old music and healing ritual from Italy’s Salentine peninsula, known as tarantism, are recognized in different forms and appear in various locations throughout the world. Tarantism was designed to heal women, known as tarantate, from spider-bite poisoning through the repetitive rhythms and sonorous melodies of pizzica music. This project seeks to understand the importance of the tarantate and their voices to the tarantism ritual and to the people of Apulia,...
Show moreDerivatives of a thousand-year-old music and healing ritual from Italy’s Salentine peninsula, known as tarantism, are recognized in different forms and appear in various locations throughout the world. Tarantism was designed to heal women, known as tarantate, from spider-bite poisoning through the repetitive rhythms and sonorous melodies of pizzica music. This project seeks to understand the importance of the tarantate and their voices to the tarantism ritual and to the people of Apulia, Italy. In previous scholarship, the voices of these women were often overlooked in favor of more tangible items, such as the ritual’s music instruments. In spite of this underrepresentation, my ethnographic and archival research reveals that the tarantate are valued as cornerstones of Apulian cultural heritage. In analyzing the efforts of the Club per l’UNESCO di Galatina to preserve tarantism through festivals and reenactments, I demonstrate how modern-day cultural sustainability efforts can be used to reclaim voices that are essential to local traditions yet traditionally underrepresented in scholarly literature. Documenting the importance of the tarantate and analyzing their roles in local heritage reclamation efforts requires an inherently multi-disciplinary lens. At the center of this study lies ethnographic research that catalogs the activities of the Club per l’UNESCO di Galatina and the perspectives of the Apulian people as local practices develop to preserve tarantism. A theoretical framework in gender studies, cultural heritage, and voice studies is necessary to problematize the role of the women at the center of the ritual. Knowledge of history, social systems, and religion are required to understand the setting and impetus for tarantism in Apulia. Finally, my background in musicology informs analysis of the ritual’s sound-based foundation. Research and analysis in each of these areas contributes to a holistic reinterpretation of how sonic cultural heritage can be sustained and how underrepresented voices can be understood in traditions around the globe.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Youngblood_fsu_0071E_15024
- Format
- Thesis
- Title
- Improvement of Quality Prediction in Inter-Connected Manufacturing System by Integrating Multi-Source Data.
- Creator
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Ren, Jie, Wang, Hui, Vanli, Omer Arda, Park, Chiwoo, Huffer, Fred W. (Fred William), Florida State University, FAMU-FSU College of Engineering, Department of Industrial and...
Show moreRen, Jie, Wang, Hui, Vanli, Omer Arda, Park, Chiwoo, Huffer, Fred W. (Fred William), Florida State University, FAMU-FSU College of Engineering, Department of Industrial and Manufacturing Engineering
Show less - Abstract/Description
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With the development of advanced sensing and network technology such as wireless data transmission and data storage and analytics under cloud platforms, the manufacturing plant is going through a new revolution, by which different production units/components can communicate with each other, leading to inter-connected manufacturing. The interconnection enables the close coordination of process control actions among machines to improve product quality. Traditional quality prediction methods...
Show moreWith the development of advanced sensing and network technology such as wireless data transmission and data storage and analytics under cloud platforms, the manufacturing plant is going through a new revolution, by which different production units/components can communicate with each other, leading to inter-connected manufacturing. The interconnection enables the close coordination of process control actions among machines to improve product quality. Traditional quality prediction methods that focus on the data from one single source are not sufficient to deal with the variation modeling, and quality prediction problems involved the inter-connected manufacturing. Instead, new quality prediction methods that can integrate the data from multiple sources are necessary. This research addresses the fundamental challenges in improving quality prediction by data fusion for inter-connected manufacturing including knowledge sharing and transfer among different machines and collaboration error monitoring. The methodology is demonstrated through surface machining and additive manufacturing processes. The first study is on the surface quality prediction for one machining process by fusing multi-resolution spatial data measured from multiple surfaces or different surface machining processes. The surface variation is decomposed into a global trend part that characterizes the spatially varying relationship of selected process variables and surface height and a zero-mean spatial Gaussian process part. Three models including two varying coefficient-based spatial models and an inference rule-based spatial model are proposed and compared. Also, transfer learning technique is used to help train the model via transferring useful information from a data-rich surface to a data-lacking surface, which demonstrates the advantage of inter-connected manufacturing. The second study deals with the surface mating errors caused by the surface variations from two inter-connected surface machining processes. A model aggregating data from two surfaces is proposed to predict the leak areas for surface assembly. By using the measurements of leak areas and the profiles of surfaces mated as training data along with Hagen–Poiseuille law, this study develops a novel diagnostic method to predict potential leak areas (leakage paths). The effectiveness and robustness of the proposed method are verified by an experiment and a simulation study. The approach provides practical guidance for the subsequent assembly process as well as troubleshooting in manufacturing processes. The last study focuses on the learning of quality prediction model in inter-connected additive manufacturing systems, by which different 3D printing processes involved are driven by similar printing mechanisms and can exchange quality data via a network. A quality prediction model that estimates the printing widths along the printing paths for material-extrusion-based additive manufacturing (a.k.a., fused filament fabrication or fused deposition modeling) is established by leveraging the between-printer quality data. The established mathematical model quantifies the printing line-width along the printing paths based on the kinematic parameters, e.g., printing speed and acceleration while considering data from multiple printers that contain between-machines similarity. The method can allow for the between-printer knowledge sharing to improve the quality prediction so that a printing process with limited historical data can quickly learn an effective quality model without intensive re-training, thus improving the system responsiveness to product variety. In the long run, the outcome of this research can help contribute to the development of high-efficient Internet-of-Things manufacturing services for personalized products.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Ren_fsu_0071E_15160
- Format
- Thesis
- Title
- It's Not You, It's Me: Implicitly Assessed Partner Attitudes Predict Mood but Not Interpersonal Evaluations.
- Creator
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Turner, Jordan A., McNulty, James, Meltzer, Andrea L., Proudfit, Greg Hajcak, Florida State University, College of Arts and Sciences, Department of Psychology
- Abstract/Description
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Although automatic partner attitudes are a critical predictor of long-term relationship outcomes, we know very little about their more immediate implications. Different theoretical perspectives suggest different possibilities—automatic partner attitudes may predict (a) daily interpersonal judgments, (b) judgments of alternative sources, such as mood, or (c) no daily judgments if these attitudes are unconscious. We assessed automatic partner attitudes implicitly and interpersonal evaluations...
Show moreAlthough automatic partner attitudes are a critical predictor of long-term relationship outcomes, we know very little about their more immediate implications. Different theoretical perspectives suggest different possibilities—automatic partner attitudes may predict (a) daily interpersonal judgments, (b) judgments of alternative sources, such as mood, or (c) no daily judgments if these attitudes are unconscious. We assessed automatic partner attitudes implicitly and interpersonal evaluations and mood via self-report for 14 days in a sample of newlywed couples. More negative partner attitudes were associated with more negative daily mood and less positive daily mood but not daily evaluations of the relationship over the 14 days. These findings suggest that people (a) do have access to the content of automatic evaluations but may not always realize their source but (b) may protect desired beliefs by explaining away automatic evaluations that are undesirable.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Turner_fsu_0071N_15068
- Format
- Thesis
- Title
- Waveland.
- Creator
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Plante, Jessica M. (Jessica Marie), Kirby, David, Cuevas, Bryan J., Hamby, Barbara, Roberts, Diane, Stilling, Robert, Florida State University, College of Arts and Sciences,...
Show morePlante, Jessica M. (Jessica Marie), Kirby, David, Cuevas, Bryan J., Hamby, Barbara, Roberts, Diane, Stilling, Robert, Florida State University, College of Arts and Sciences, Department of English
Show less - Abstract/Description
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The dissertation manuscript, Waveland, is a sequence of lyric and narrative poems that form a loosely-structured story about the life of a character called The Navy Wife. The poems in the collection explore trauma and healing through braided topics and motifs, and the manuscript is arranged so that The Navy Wife’s exploration of self develops along a hero’s journey narrative arc. A hero’s journey includes the following components: a call to action, acceptance of the call, rising action,...
Show moreThe dissertation manuscript, Waveland, is a sequence of lyric and narrative poems that form a loosely-structured story about the life of a character called The Navy Wife. The poems in the collection explore trauma and healing through braided topics and motifs, and the manuscript is arranged so that The Navy Wife’s exploration of self develops along a hero’s journey narrative arc. A hero’s journey includes the following components: a call to action, acceptance of the call, rising action, defeat, death and rebirth, atonement, the journey home, and the establishment of a new normal. As a hero’s journey, Waveland’s narrative structure is circular; the speaker ends where she began though she is now transformed by her reconciliation with her past.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Plante_fsu_0071E_15059
- Format
- Thesis
- Title
- Agreement between Parent and Teacher Ratings of Problem Behaviors: The Role of Children's Executive Function.
- Creator
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Osborne, Colleen M., Lonigan, Christopher J., Kofler, Michael J., Schatschneider, Christopher, Florida State University, College of Arts and Sciences, Department of Psychology
- Abstract/Description
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Discrepancies between parent and teacher ratings of problem behaviors have been reported consistently throughout the literature. This study is built on the Attribution Bias Context Model, which suggests that the differences in the ratings of behavior may reflect different observable behaviors across contexts rather than different interpretations of the behavior by the informants. The purpose of this study was to examine the degree to which discrepancies in parents’ and teachers’ ratings of...
Show moreDiscrepancies between parent and teacher ratings of problem behaviors have been reported consistently throughout the literature. This study is built on the Attribution Bias Context Model, which suggests that the differences in the ratings of behavior may reflect different observable behaviors across contexts rather than different interpretations of the behavior by the informants. The purpose of this study was to examine the degree to which discrepancies in parents’ and teachers’ ratings of behaviors of young children were associated with children’s executive function (EF). Using a sample of 125 children attending first and second grade in North Florida, EF was directly assessed using a battery of EF measures that was developed for use with this age group, and both parents and teachers completed the Strengths and Weakness of ADHD-related and Normal Behavior (SWAN) questionnaire and Connors Teacher Rating Scale-15 (CTRS) to assess problem behaviors. Quantile regression was used to assess the changes in the relation of the discrepancy between parent and teacher ratings of externalizing problem behaviors and the children’s level of EF using a difference score for each subscale of both questionnaires. Although results from the SWAN inattention subscale were consistent with the hypothesis, results from other subscales and the CTRS were not consistent with the hypothesis. Scores for the Dimension Change Card Sorting (DCCS) task was significantly related to all of the difference scores except for both hyperactivity/impulsivity subscales.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_Osborne_fsu_0071N_15021
- Format
- Thesis
- Title
- Disengagement Training for the Treatment of Pathological Worry: A Preliminary Test.
- Creator
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McDermott, Katherine A., Cougle, Jesse R. (Jesse Ray), Schmidt, Norman B., Ganley, Colleen M., Florida State University, College of Arts and Sciences, Department of Psychology
- Abstract/Description
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Pathological worry is characterized by an inability to distract or disengage from worry, and this uncontrollability is the defining feature of Generalized Anxiety Disorder (GAD; Ruscio & Borkovec, 2004). Several interventions, including stimulus control (McGowan & Behar, 2013) and thought replacement (Eagleson, Hayes, Mathews, Perman, & Hirsch, 2016), have attempted to target disengagement from worry by restricting worry as soon as it begins. However, these interventions have not targeted...
Show morePathological worry is characterized by an inability to distract or disengage from worry, and this uncontrollability is the defining feature of Generalized Anxiety Disorder (GAD; Ruscio & Borkovec, 2004). Several interventions, including stimulus control (McGowan & Behar, 2013) and thought replacement (Eagleson, Hayes, Mathews, Perman, & Hirsch, 2016), have attempted to target disengagement from worry by restricting worry as soon as it begins. However, these interventions have not targeted disengagement from worry once participants have fully engaged with it, nor do they involve cultivating alternative topics to compete with worry. The present study assessed a novel computerized treatment designed to train disengagement from worry. Participants with pathological worry (N = 50) were randomized to three sessions of Worry Disengagement Training (WDT) or a waitlist control. Across six sessions, participants in the WDT condition alternated between writing about their worry and positive writing. WDT led to increased ability to disengage from in vivo worry on a breath focus task, resulting in both fewer negative intrusions (B = -.29, p = .02; sr2 = .08) and lower self-reported worry (B = -.49, p < .001, sr2 = .25) during the task. Relative to waitlist, WDT also led to lower self-reported worry (PSWQ; B = -.36, p = .001, sr2 = .14) and depressive symptoms (B = -.25, p = .02, sr2 = .07). These effects remained in the subset of participants meeting criteria for GAD. WDT did not appear to impact more behavioral symptoms of GAD or anxious arousal. In summary, WDT may be effective in increasing disengagement ability and reducing worry and depression among those with pathological worry. Future research directions are discussed.
Show less - Date Issued
- 2019
- Identifier
- 2019_Spring_McDermott_fsu_0071N_15050
- Format
- Thesis