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A Grounded Theory Survey Study Of Teachers Perception Perpetuating The Deficit Narrative About Marginalized Students Of Color, Cavel Austin Jan 2019

A Grounded Theory Survey Study Of Teachers Perception Perpetuating The Deficit Narrative About Marginalized Students Of Color, Cavel Austin

Electronic Theses and Dissertations

The deficit narrative about marginalized students of color attributes their failure in school to some nature of innate cognitive deficiency, cultural, social, and familial dysfunctions among other schools of thoughts. The purpose of this grounded theory study is to provide a rich description about this phenomenon and to propose theoretical pedagogical adjustments in the classroom as it relates to educating students of color. The study applies Charmaz (2014) Constructivist approach to grounded theory methods to examine the following research questions: (RQ1) How do teachers' narratives about students of color depict their teaching experiences and (RQ2) How do teachers' narratives about …

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Context-Centric Affect Recognition From Paralinguistic Features Of Speech, Andreas Marpaung Jan 2019

Context-Centric Affect Recognition From Paralinguistic Features Of Speech, Andreas Marpaung

Electronic Theses and Dissertations

As the field of affect recognition has progressed, many researchers have shifted from having unimodal approaches to multimodal ones. In particular, the trends in paralinguistic speech affect recognition domain have been to integrate other modalities such as facial expression, body posture, gait, and linguistic speech. Our work focuses on integrating contextual knowledge into paralinguistic speech affect recognition. We hypothesize that a framework to recognize affect through paralinguistic features of speech can improve its performance by integrating relevant contextual knowledge. This dissertation describes our research to integrate contextual knowledge into the paralinguistic affect recognition process from acoustic features of speech. We …

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The Impact Of Youths' Digital Citizenship Levels On Their Self-Efficacy, Madison Gannon Jan 2019

The Impact Of Youths' Digital Citizenship Levels On Their Self-Efficacy, Madison Gannon

Electronic Theses and Dissertations

The purpose of this study is to identify youths' levels of digital citizenship, to identify youths' levels of self-efficacy, and to determine the relationship between their digital citizenship levels and their self-efficacy levels. Their digital citizenship levels were determined based on five factors: 1) Ethics for Digital Environment, 2) Fluency for Digital Environment, 3) Reasonable/Critical Decisions, 4) Self-Identity in Digital World, and 5) Social/Cultural Engagement to Society. Their self-efficacy levels were determined based on three factors: 1) Academic Self-efficacy, 2) Social Self-efficacy, and 3) Emotional Self-efficacy. The study has four major phases. First, an in-depth literature review was conducted on …

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Informe Parcial Proyecto “Paleobotánica Y Paisaje En El Amazonas Sudoccidental: Prospección, Excavaciones Arqueológicas Y Obtención De Muestras De Suelo En Los Llanos De Mojos, Bolivia”, John H. Walker, Neil Duncan, Juan Carlos Chávez Quispe, Thomas Warren Lee, Danielle Young, Hanna Park, Mabel Ramos Fernandez, Lizeth Duran Vargas, Andrea Cruz Diez, Jaime Bocchietti Arias Jan 2019

Informe Parcial Proyecto “Paleobotánica Y Paisaje En El Amazonas Sudoccidental: Prospección, Excavaciones Arqueológicas Y Obtención De Muestras De Suelo En Los Llanos De Mojos, Bolivia”, John H. Walker, Neil Duncan, Juan Carlos Chávez Quispe, Thomas Warren Lee, Danielle Young, Hanna Park, Mabel Ramos Fernandez, Lizeth Duran Vargas, Andrea Cruz Diez, Jaime Bocchietti Arias

ProSIGAB Documents

No abstract provided.

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Theoretical And Experimental Study For Tailoring The Electromagnetic Properties Of Conductive Materials, Jeffrey Jennings Jan 2019

Theoretical And Experimental Study For Tailoring The Electromagnetic Properties Of Conductive Materials, Jeffrey Jennings

Electronic Theses and Dissertations

Induction in leaded, implanted medical devices exposed to radio frequency (RF) magnetic fields during magnetic resonance imaging (MRI) produce Joule heating in adjacent tissues causing various issues, including death. Given the importance of MRI as a diagnostic tool and the growth in leaded device-related treatments, identification of a solution ensuring their compatibility is of great interest. Electromagnetic (EM) surface property tailoring in lead materials to change their inductive response by adding functionally-graded, heterogeneous surface layers is a possible solution. However, non-uniform EM properties introduce two challenges: the added complexity of analyses and characterization of the graded region. This dissertation addresses …

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Assessment Of A Surface Water Supply For Source And Treated Distribution System Quality, Angela Rodriguez Jan 2019

Assessment Of A Surface Water Supply For Source And Treated Distribution System Quality, Angela Rodriguez

Electronic Theses and Dissertations

This study focused on providing a source to tap assessment of surface water systems with respect to (i) the use of alternative biomonitoring tools, (ii) disinfection byproduct (DBP) formation and control, and (iii) corrosion control. In the first study component, two water systems were microbiologically evaluated using adenosine triphosphate (ATP) bioluminescence technology. It was determined that microbial ATP was useful as a surrogate for biomonitoring within a surface water system when paired with traditional methods. Although microbial activity differed between distribution systems that used either chloramine or chlorine disinfectant, in both cases flowrate and season affected microbial ATP values. In …

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Long-Term Carbon And Copper Impact On Nutrient Removal Via Green Sorption Media In Dynamic Linear Ditch Environments, Diana Ordonez Jan 2019

Long-Term Carbon And Copper Impact On Nutrient Removal Via Green Sorption Media In Dynamic Linear Ditch Environments, Diana Ordonez

Electronic Theses and Dissertations

Nutrient-laden stormwater runoff causes environmental and ecological impacts on receiving water bodies. Biosorption Activated Media (BAM) composed of the sand, tire crumb, and clay have been implemented in stormwater best management practices due to its ability to efficiently remove nutrients from stormwater runoff, such as in roadside linear ditches, via unique chemophysical and microbiological processes. In this study, a set of fixed-bed columns were set up to simulate some external forces in roadside linear ditches and examine how these external forces affect the performance of BAM. In our experiment, scenario 1 simulates the impact that animals such as tortoises, moles …

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Adsorption Capacity Assessment Of Advance Green Environmental Media To Remove Nutrients From Stormwater-Runoff, Hanan Elhakiem Jan 2019

Adsorption Capacity Assessment Of Advance Green Environmental Media To Remove Nutrients From Stormwater-Runoff, Hanan Elhakiem

Electronic Theses and Dissertations

Best Management Practices (BMPs) in stormwater treatment are a suite of treatment alternatives to deal with pollutant removal problems from stormwater runoff. Biosorption-activated media (BAM) are green sorption media consists of recycled materials have shown excellent nutrient removal as an effective BMP by enhancing physicochemical and microbiological processes. In this study, Iron-Filling Green Environmental Media (denoted as IFGEM-3) and Advanced Green Environmental Media 1 and 2 (denoted as AGEM-1 and AGEM-2) were produced and tested for their adsorption capacities as well as removal and recovery potential for phosphate, nitrate, and ammonia against natural soil (baseline) collected from a stormwater retention …

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Mode Conversions In Active Semiconductor Mqw Integrated Optics Devices, Yousef Alahmadi Jan 2019

Mode Conversions In Active Semiconductor Mqw Integrated Optics Devices, Yousef Alahmadi

Electronic Theses and Dissertations

Optical communication systems had successfully met the increasing demands for higher communication speeds through the utilization of all degrees of freedom of the light propagating in a single-mode fiber (SMF). However, the Shannon limit restricts further improvements of the capacity in the SMFs. Space-division multiplexing (SDM) offers a way for further increasing the capacity of optical fibers through the utilization of the spatial domain. However, for it to be successfully implemented, many integral parts of the optical communication must be tuned or modified to work effectively with the multimode fibers, including few-mode amplifiers, and mode converters. In this work, we …

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Simulation Analysis Of A Ventilated Building Integrated Photovoltaic Air-Gap Duct System For Natural Ventilation Of A Building, Arash Zarmehr Jan 2019

Simulation Analysis Of A Ventilated Building Integrated Photovoltaic Air-Gap Duct System For Natural Ventilation Of A Building, Arash Zarmehr

Electronic Theses and Dissertations

We introduce a low-cost and low-maintenance wind-catcher duct system design addition to BIPV systems that increase airflow velocity and decrease air temperature resulting in increased performance for the PV system electricity output. The results of our work demonstrate the design can further enhance energy performance by utilizing the increased airflow from the duct system to naturally ventilate an attic. Similar benefits were observed for different variations of the design under a parametric analysis finding the most optimal configuration to increase airflow velocity and decrease temperature. Building integrated photovoltaics (BIPV) is becoming more popular and widely used to increase sustainability and …

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Piezoresistive Behavior Of Carbon Nanopaper Polymer Composites For Strain Sensing, Jayden Beyrooti Jan 2019

Piezoresistive Behavior Of Carbon Nanopaper Polymer Composites For Strain Sensing, Jayden Beyrooti

Electronic Theses and Dissertations

Carbon nanopapers made of carbon nanotubes (CNTs) or carbon nanofibers (CNFs), possess unique electrical, thermal and mechanical properties and when integrated with a polymer matrix, can become a multifunctional composite capable of strain sensing and heat actuation. Smart structures such as these can be used in many applications including deployable space structures, human motion detection, and structural health monitoring as flexible, sensitive and stable strain sensors in addition to providing electrical heat actuation for the shape memory effect in polymers. This study focuses on strain sensing capabilities by developing a numerical model to predict piezoresistive behavior. The piezoresistive effect is …

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Supporting Learning In 3d Virtual Environments: The Impact Of Intergenerational Joint Media Engagement, Robert Michlowitz Jan 2019

Supporting Learning In 3d Virtual Environments: The Impact Of Intergenerational Joint Media Engagement, Robert Michlowitz

Electronic Theses and Dissertations

Studies have indicated that intergenerational relationships can assist children to learn more efficiently by providing support. As new forms of media have emerged and become pervasive in our society, it is important to understand how children use them to learn. Just as television coviewing has been observed by past researchers to aid youths to learn with parents and grandparents, three-dimensional virtual learning environments (VLE) are being investigated for their potential. This study seeks to examine the potential learning impact on children, ages 8 to 13, encountering a three-dimensional virtual learning environment with their grandparents. The primary research question this study …

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Optimal Recipe Screening And Applications Of Iron-Filings Based Green Environmental Media (Ifgem) For Stormwater Treatment, Andrea Valencia Jan 2019

Optimal Recipe Screening And Applications Of Iron-Filings Based Green Environmental Media (Ifgem) For Stormwater Treatment, Andrea Valencia

Electronic Theses and Dissertations

The applications of green sorption media for stormwater treatment and nutrient removal benefit surface and ground water bodies by reducing non-point source pollution from stormwater runoff. To enhance nitrogen and phosphorus removal, a sequential study was performed to develop an improved green sorption media in this study by including the iron filings into the previous biosorption activated media (BAM). The iron-filings-based green environmental media (IFGEM) are thus composed of sand, tire crumb, clay and ground iron filings in which clay and iron particles are supposed to have salient interactions that cannot be present in BAM. However, the optimal ratio between …

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Modeling Of Wrong Way Driving Entries And Developing Innovative Approaches For Evaluating The Effectiveness Of Advanced Wrong Way Driving Countermeasures, Md Imrul Kayes Jan 2019

Modeling Of Wrong Way Driving Entries And Developing Innovative Approaches For Evaluating The Effectiveness Of Advanced Wrong Way Driving Countermeasures, Md Imrul Kayes

Electronic Theses and Dissertations

Wrong-way driving (WWD) is a hazardous behavior on interstates, toll roads, and other high-speed limited access facilities. Since WWD crashes are rare, recent researchers have studied WWD events such as WWD 911 calls and WWD citations to understand the overall nature and trend of WWD. It is very difficult to build credible statistical models based solely on crashes due to the small sample size since these are only 3% of all crashes. Modeling of WWD non-crash events can result in more accurate models. A model was developed for Florida limited access facilities to identify roadway factors and traffic characteristics of …

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Sparse Signal Recovery Under Sensing And Physical Hardware Constraints, Davood Mardaninajafabadi Jan 2019

Sparse Signal Recovery Under Sensing And Physical Hardware Constraints, Davood Mardaninajafabadi

Electronic Theses and Dissertations

This dissertation focuses on information recovery under two general types of sensing constraints and hardware limitations that arise in practical data acquisition systems. We study the effects of these practical limitations in the context of signal recovery problems from interferometric measurements such as for optical mode analysis. The first constraint stems from the limited number of degrees of freedom of an information gathering system, which gives rise to highly constrained sensing structures. In contrast to prior work on compressive signal recovery which relies for the most part on introducing additional hardware components to emulate randomization, we establish performance guarantees for …

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Investigation Of The Effect Of Edge-Oxidized Graphene Oxide (Eogo) On The Properties Of Cement Composites, Yousef Alharbi Jan 2019

Investigation Of The Effect Of Edge-Oxidized Graphene Oxide (Eogo) On The Properties Of Cement Composites, Yousef Alharbi

Electronic Theses and Dissertations

The use of edge-oxidized graphene oxide (EOGO), produced by a mechanochemical process that allow to deliver a product suitable for large-scale production at affordable cost, as an additive in cement composites was investigated. Comprehensive experimental tests were conducted to investigate the effect of EOGO on the properties of cement composites. The experimental tests were designed for three subtasks: (1) investigation of the performance of EOGO and its mixing method on the strength, pore structure and microstructure of EOGO-cement composites, (2) evaluation of the rheological and fluidity behavior of EOGO-cement paste and mortar, and (3) investigation of the mechanism of the …

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Development Of Decision Support System For Active Traffic Management Systems Considering Travel Time Reliability, Whoibin Chung Jan 2019

Development Of Decision Support System For Active Traffic Management Systems Considering Travel Time Reliability, Whoibin Chung

Electronic Theses and Dissertations

As traffic problems on roadways have been increasing, active traffic management systems (ATM) using proactive traffic management concept have been deployed on freeways and arterials. The ATM aims to integrate and automate various traffic control strategies such as variable speed limits, queue warning, and ramp metering through a decision support system (DSS). Over the past decade, there have been many efforts to integrate freeways and arterials for the efficient operation of roadway networks. It has been required that these systems should prove their effectiveness in terms of travel time reliability. Therefore, this study aims to develop a new concept of …

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Detecting Anomalies From Big Data System Logs, Siyang Lu Jan 2019

Detecting Anomalies From Big Data System Logs, Siyang Lu

Electronic Theses and Dissertations

Nowadays, big data systems (e.g., Hadoop and Spark) are being widely adopted by many domains for offering effective data solutions, such as manufacturing, healthcare, education, and media. A common problem about big data systems is called anomaly, e.g., a status deviated from normal execution, which decreases the performance of computation or kills running programs. It is becoming a necessity to detect anomalies and analyze their causes. An effective and economical approach is to analyze system logs. Big data systems produce numerous unstructured logs that contain buried valuable information. However manually detecting anomalies from system logs is a tedious and daunting …

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Comparative Nutrient Removal With Innovative Green Soprtion Media For Groundwater And Stormwater Co-Treatment, Dan Wen Jan 2019

Comparative Nutrient Removal With Innovative Green Soprtion Media For Groundwater And Stormwater Co-Treatment, Dan Wen

Electronic Theses and Dissertations

As indicated by the National Academy of Engineering, the understanding of nitrogen cycle has been deemed as one of 14 grand challenges in engineering of the 21st century. Due to rapid population growth and urbanization, the stormwater runoff increased in quantity as well as its nutrient concentrations, which may trigger serious environmental issues such as eutrophication in aquatic systems and ecosystem degradation. This study focuses on stormwater and groundwater quality control via Biosorption Activated Media (BAM) which can be applied to enhance the nutrient removal potential as an emerging Best Management Practices (BMPs). BAM was tested in this study with …

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Evolutionary Model Discovery: Automating Causal Inference For Generative Models Of Human Social Behavior, Chathika Gunaratne Jan 2019

Evolutionary Model Discovery: Automating Causal Inference For Generative Models Of Human Social Behavior, Chathika Gunaratne

Electronic Theses and Dissertations

The desire to understand the causes of complex societal phenomena is fundamental to the social sciences. Society, at a macro-scale has many measurable characteristics in the form of statistical distributions and aggregate measures; data which is increasingly abundant with the proliferation of online social media, mobile devices, and the internet of things. However, the decision-making processes and limits of the individuals who interact to generate these statistical patterns are often difficult to unravel. Furthermore, multiple causal factors often interact to determine the outcome of a particular behavior. Quantifying the importance of these causal factors and their interactions, which make up …

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The Long And Short Of It, Ciera Mcelroy Jan 2019

The Long And Short Of It, Ciera Mcelroy

Electronic Theses and Dissertations

The Long and Short of It is a collection of ten stories, spanning centuries and continents, illustrating the universality of loss. Here is a war-haunted Korean vet, brainwashed Nazi brides, a neurotic Soviet ballerina, and a re-imagined Ethan Frome. In these stories, anxiety waits in the wings: will Ethan's wife discover his affair? Will the brides acknowledge the dark truth behind their training? Will a mother recover her kidnapped baby? Characters grapple with grief and anxiety in various ways. Two mothers mourn missing babies: one turns to the occult, the other heads to Mars. Children reel with abandonment: one obsesses …

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Consumer Tradeoffs In Material And Experiential Purchases, Ganga Urumutta Hewage Jan 2019

Consumer Tradeoffs In Material And Experiential Purchases, Ganga Urumutta Hewage

Electronic Theses and Dissertations

Material and experiential purchases have gained much attention in psychology and consumer behavior alike (Carter and Gilovich 2010; Nicolao, Irwin, and Goodman 2009; Rosenzweig and Gilovich 2012; Tully, Hershfield, and Meyvis 2015). In three essays, I examine the theoretical and practical implications of consumer tradeoffs in this domain. In the first essay, I explore how regulatory focus influences the tradeoffs between material and experiential purchases. Results of five laboratory studies and two field studies (using Instagram and Google Trends data) suggest that, as the regulatory focus shifts from prevention to promotion, there is a higher likelihood of choosing experiential purchases …

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Selenium Vs. Sulfur: Investigating The Substrate Specificity Of A Selenocysteine Lyase, Michael Johnstone Jan 2019

Selenium Vs. Sulfur: Investigating The Substrate Specificity Of A Selenocysteine Lyase, Michael Johnstone

Electronic Theses and Dissertations

Selenium is a vital micronutrient in many organisms. While traces are required for survival, excess amounts are toxic; thus, selenium can be regarded as a biological "double-edged sword". Selenium is chemically similar to the essential element sulfur, but curiously, evolution has selected the former over the latter for a subset of oxidoreductases. Enzymes involved in sulfur metabolism are less discriminate in terms of preventing selenium incorporation; however, its specific incorporation into selenoproteins reveals a highly discriminate process that is not completely understood. In this work, we add knowledge to the mechanism for selenium-over-sulfur specificity in hopes of further understanding the …

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Investigation Of Ps-Pvd And Eb-Pvd Thermal Barrier Coatings Over Lifetime Using Synchrotron X-Ray Diffraction, Matthew Northam Jan 2019

Investigation Of Ps-Pvd And Eb-Pvd Thermal Barrier Coatings Over Lifetime Using Synchrotron X-Ray Diffraction, Matthew Northam

Electronic Theses and Dissertations

Extreme operating temperatures within the turbine section of jet engines require sophisticated methods of cooling and material protection. Thermal barrier coatings (TBCs) achieve this through a ceramic coating applied to a substrate material (nickel-based superalloy). Electron-beam physical vapor deposition (EB-PVD) is the industry standard coating used on jet engines. By tailoring the microstructure of an emerging deposition method, Plasma-spray physical vapor deposition (PS-PVD), similar microstructures to that of EB-PVD coatings can be fabricated, allowing the benefits of strain tolerance to be obtained while improving coating deposition times. This work investigates the strain through depth of uncycled and cycled samples using …

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Raising Roma Voices: An Insider Examination Of American Roma Realities, Resistance, And Revaluation, Sabrina Marks Jan 2019

Raising Roma Voices: An Insider Examination Of American Roma Realities, Resistance, And Revaluation, Sabrina Marks

Electronic Theses and Dissertations

A vast scholarship has been dedicated to examining the discrimination racial and ethnic minorities endure in the United States. Research has also shown racial and ethnic minorities work to resist discrimination via various social processes. One ethnic minority group absent from the literature is the American Roma, more commonly known as Gypsies. Therefore, this study aimed to gain insights into the situation of the American Roma, including the discrimination they endure and the resistance tactics they employ. In-depth semi-structured interviews were conducted with 31 native-born American Roma adults during the course of this insider study. Participants reported experiencing discrimination in …

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'Let Me Lock It Up': A Rhetorical Exploration Of Identity And An Emergent Counterpublic Within The Youtube Beauty Community, Rachel Street Jan 2019

'Let Me Lock It Up': A Rhetorical Exploration Of Identity And An Emergent Counterpublic Within The Youtube Beauty Community, Rachel Street

Electronic Theses and Dissertations

In light of calls to study digital composition outside of school-based domains (e.g. Yancey), this project specifically explores a counterpublic in the YouTube beauty community that has arisen in response to the encroachment of and attempts to institutionalize the space. Utilizing iconographic tracking and rhetorical analysis, this study illuminates a network of discourse geared toward a more responsible and educated consumption of makeup and participation within the beauty community. This study found that within the beauty community, a counterpublic has formed in response to a more commodified, product-centered public sphere that has dominated the space and is most associated with …

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A Mixed-Method Examination Of The Impact Of Academic, Social, And Personal-Emotional Adjustment On The English Performance Of Arabian Gulf Students Studying In American Intensive English Programs, Mais Flaieh Hasan Al Jabbawi Jan 2019

A Mixed-Method Examination Of The Impact Of Academic, Social, And Personal-Emotional Adjustment On The English Performance Of Arabian Gulf Students Studying In American Intensive English Programs, Mais Flaieh Hasan Al Jabbawi

Electronic Theses and Dissertations

The current study identifies and discusses the adjustment challenges facing Arabian Gulf Students (AGSs) that may affect their English performance (EP) in intensive English programs (IEPs) in the United States. The current study uses student departure theory to lead the theoretical framework and incorporates Student Adaptation to College Questionnaire (SACQ) and Social Integration Questionnaire (SIQ) to lead the methodology of this study. The mixed-method investigation with multi-location sampling examined 160 AGSs, enrolled full-time in different IEPs in the U.S. during the spring semester of 2019. The AGSs participants were from Iraq, Kuwait, Saudi Arabia, Qatar, Bahrain, the United Arab Emirates, …

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Poems, Peter Gordon Jan 2019

Poems, Peter Gordon

The Marjorie Kinnan Rawlings Journal of Florida Literature

No abstract provided.

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Metastable-State Photoacids: Synthesis, Properties, And Applications, Parth Patel Jan 2019

Metastable-State Photoacids: Synthesis, Properties, And Applications, Parth Patel

Electronic Theses and Dissertations

Reversible photochromic compounds have the ability to reversibly change its color when it absorbs photons of a particular wavelength. This process of color change is a consequence of structural changes within the compound, such as cis-trans photo-isomerization. Some examples of photochromic compounds are spiropyrans, spirooxazines, diarylethenes and azobenzenes. These compounds have been extensively studied for decades, and are used in various applications such as biomedicine, chemical sensors and harvesting solar energy. However, majority of photochromic compounds are initially activated by ultraviolet (UV) light. The use of UV light is harmful for biological applications and photo-degrade the compound over repeated use. …

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Building Unity Through State Narratives: The Evolving British Media Discourse During World War Ii, 1939-1941, Colin Cook Jan 2019

Building Unity Through State Narratives: The Evolving British Media Discourse During World War Ii, 1939-1941, Colin Cook

Electronic Theses and Dissertations

The British media discourse evolved during the first two years of World War II, as state narratives and censorship began taking a more prominent role. I trace this shift through an examination of newspapers from three British regions during this period, including London, the Southwest, and the North. My research demonstrates that at the start of the war, the press featured early unity in support of the British war effort, with some regional variation. As the war progressed, old political and geographical divergences came to the forefront in coverage of events such as Prime Minister Chamberlain's resignation. The government became …

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