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Understanding The Impact Of Racism And Sexism On The Transition Experience Of Black Women Principals From The Classroom To The Secondary School Principalship, Brittany Denise Neely Dec 2018

Understanding The Impact Of Racism And Sexism On The Transition Experience Of Black Women Principals From The Classroom To The Secondary School Principalship, Brittany Denise Neely

All Dissertations

This study was focused on understanding how Black women currently serving as secondary school principals were able to obtain their positions and what supports they received and barriers they encountered during their transition from teacher to principal. The underlying purpose behind this study was to understand how racist and/or sexist practices within the educational system influenced their experiences in becoming some of the few Black women currently serving as secondary school principals. In this study, I drew upon Black feminist thought as my epistemological perspective and critical race feminism as my theoretical framework to understand this phenomenon. To investigate this …

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Characterization And Cultivation Of Marine Protist, Thraustochytrium Striatum For High-Value Bioproducts, Rui Xiao Dec 2018

Characterization And Cultivation Of Marine Protist, Thraustochytrium Striatum For High-Value Bioproducts, Rui Xiao

All Dissertations

DHA/EPA producing marine protists have recently become more attractive due to their additional high-value products, including extracellular enzymes, extracellular polymeric substances (EPS), and astaxanthin. In this study, Thraustochytrium striatum ATCC 24473 was studied and the cultivation conditions were been optimized to achieve high biomass and fatty acid yield. Results showed that seawater salinity, neutral pH and mild rotation speed favored biomass growth, while better lipid accumulation was observed under high C/N ratio, higher salinity or high pH. Comparison in different carbon sources showed starch and glycerol improved fatty acid accumulation the most, and ammonia chloride was the best nitrogen source …

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Hydrothermal Crystal Growth Of Tetrahedral Framework Oxides For Optical Applications, Rylan James Terry Dec 2018

Hydrothermal Crystal Growth Of Tetrahedral Framework Oxides For Optical Applications, Rylan James Terry

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In our modern world, lasers are used every day, from the mundane task of playing a DVD to the innovative implementation of laser surgery. Nonlinear optical (NLO) crystals are crucial to laser technology for their ability to modify the frequency of a beam. The development of new NLO crystals is necessary for the advancement of laser technology, in order to reach wavelengths that are not currently accessible due to the limitations of current materials. Of particular importance to semiconductor photolithography, laser micromachining, and scientific instrumentation are the ultra-violet (UV, 200 nm > λ > 400 nm) and deep-UV (λ < 200 nm) portions of the optical spectrum. This dissertation delves into the synthesis of new potential NLO materials by means of hydrothermal crystal growth. In this study, tetrahedral oxides are utilized due to their likelihood of producing noncentrosymmetric (NCS) crystals, a necessity for NLO materials. Silicates are also employed in this study due to their particularly deep absorption edge into the UV. The addition of a spectroscopically silent rare earth ion which is capable of being doped with a lasing ion into a NCS crystal may lead to a single crystal that is both capable of lasing and frequency doubling. In the pursuit of such a crystal, the novel syntheses of Cs3YSi6O15 and LiRESiO4 (RE = Er, Tm, Yb, Lu) were established. Although these materials proved not to be NCS, their structures proved very intriguing and in the case of Cs3YSi6O15 is the parent structure to a family of structures that otherwise exhibits structural disorder or modulation. In expanding the range of mixed oxoanion species, the rare earth ion was replaced with a tetrahedral trivalent oxoanion. The appeal of a series with the general formula ABCO4, (A = alkali ion, B = trivalent metal, and C = tetravalent metal) is its prevalence to produce NCS crystals, notably having a tridymite-type framework. Tridymite is a high temperature variant of quartz that forms six-membered rings propagating through the structure, creating vacant channels. In a stuffed variation of this structural type, rings having negative charge are balanced by the “stuffing” of an alkali or alkaline earth cation into the vacant channels. While the archetype of the stuffed tridymites forms in the centrosymmetric (CS) space group setting of P63/mmc, there are four degrees of freedom that evolve as small variations in the structure are made, often leading to the removal of the inversion center. With the synthesis of a wide array of crystals in this family, those that were found to be NCS were analyzed for their potential use as NLO materials.

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Development Of A New Electron Spin Resonance Spectroscopy, Zhe Chen Dec 2018

Development Of A New Electron Spin Resonance Spectroscopy, Zhe Chen

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The dissertation focuses on the development of a novel electron spin resonance (ESR) spectroscopy based on an RF interferometer. The ESR spectroscopy is broadband and quantitative which is tunable over a wide frequency range, in which the RF interferometer is used to remove radio-frequency (RF) probing signals at the detector. With a planar microwave resonator (MR) the ESR spectroscopy is able to measure as low as 0.2 µg (2.8×1014 spins) DPPH (2,2-diphenyl-1-picrylhydrazyl) sample at a signal-to-noise ratio (SNR) of ~ 121 at room temperature. The broadband ESR operation capability is investigated with a broadband meander micro-strip line (MML) by measuring …

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An Interpretative Phenomenological Study Of College Women Who Participate In High-Risk Drinking, Their Perceptions Of Drinking Norms, And The Influence Of Those Norms On Their Drinking Behaviors, Elizabeth Leeman Carter Dec 2018

An Interpretative Phenomenological Study Of College Women Who Participate In High-Risk Drinking, Their Perceptions Of Drinking Norms, And The Influence Of Those Norms On Their Drinking Behaviors, Elizabeth Leeman Carter

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High-risk alcohol use on college campuses is associated with several negative consequences for students. Social norms campaigns are a widely used intervention aimed at decreasing high-risk alcohol use in a university population but their efficacy can vary based on students’ peer groups and gender. Research on gendered drinking norms for college students tends to focus on men, as they are usually identified as more likely to drink alcohol overall and to drink in high-risk ways. Additionally, social norms campaigns implemented in a small group setting, which aim to correct misperceptions of students who may not initially identify with norms of …

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Building A Model Of Black Women's Confidence In Campus Sexual Assault Resources: A Critical Race Feminist Quantitative Study, Jimmy Lee Howard, Jr. Dec 2018

Building A Model Of Black Women's Confidence In Campus Sexual Assault Resources: A Critical Race Feminist Quantitative Study, Jimmy Lee Howard, Jr.

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The United States’ evolving federal regulations and laws are doing little to disrupt systemic sexual violence, and more narrowly, are doing very little to protect Black women (Dunn, 2014; Harris, 2017; Harris & Linder, 2017; Konradi, 2016; O’Toole et al., 2015; Yung, 2015). Further, Black women are underrepresented in college sexual assault literature and little is known about how Black women perceive campus sexual violence resources and policy (Crosby, 2015; Tillman et al., 2010). The purpose of this study is to create a model to explore Black women’s confidence in sexual assault resources. In order for institutions of higher education …

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Building Thermally Stable Electrochemical Energy Storage Devices Via Application Of Temperature Responsive Polymers, Han Jiang Dec 2018

Building Thermally Stable Electrochemical Energy Storage Devices Via Application Of Temperature Responsive Polymers, Han Jiang

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Electrochemical energy storage devices such as supercapacitors (SCs) and lithium ion batteries (LIBs) play pivotal role in the undergoing “green energy revolution”, which involves the profound transformation of energy production pattern from fossil fuel to renewable energy such as solar and wind due to environmental pollution, global warming, and the inevitable depletion of crude oil and coal. However, wide applications of SCs and LIBs are still limited due to issues like thermal runway and derived hazards such as ageing or capacity degradation, fires and explosions. Even more so, thermal control issues only aggravate in large format devices. With the purpose …

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Cases Of Contingent Stem Faculty Who Practice Critical Pedagogies With/In The Neoliberal University, Jeffrey Michael Kenney Dec 2018

Cases Of Contingent Stem Faculty Who Practice Critical Pedagogies With/In The Neoliberal University, Jeffrey Michael Kenney

All Dissertations

An increasingly neoliberal university means diminishing resources and labor security for those located in the lowest echelon, particularly those engaged in critical/radical/activist projects. The purpose of this study was to generate knowledge in an effort to sustain and advance critical pedagogical practices in college teaching. This study focused principally on the knowledge and insights of contingent STEM faculty who practice critical pedagogies in the neoliberal conditions of public universities. Utilizing critical and pragmatic perspectives, I explored both the ingenuity and practicality of the participants’ praxis as well as examined the structural machinations of neoliberal capitalism within their teaching and learning …

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August 14, 2018 Conference Call, Beth Ashmore Dec 2018

August 14, 2018 Conference Call, Beth Ashmore

NASIG Newsletter

No abstract provided.

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Committee Reports & Updates Dec 2018

Committee Reports & Updates

NASIG Newsletter

No abstract provided.

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December 2018 Full Issue Dec 2018

December 2018 Full Issue

NASIG Newsletter

No abstract provided.

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September 12, 2018 Board Meeting, Beth Ashmore Dec 2018

September 12, 2018 Board Meeting, Beth Ashmore

NASIG Newsletter

No abstract provided.

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Summer Camp As A Force For 21st Century Learning: Exploring Divergent Thinking And Activity Selection In A Residential Camp Setting, Myles Lynch, C. Boyd Hegarty, Nate Trauntvein, Jonathan Plucker Dec 2018

Summer Camp As A Force For 21st Century Learning: Exploring Divergent Thinking And Activity Selection In A Residential Camp Setting, Myles Lynch, C. Boyd Hegarty, Nate Trauntvein, Jonathan Plucker

Journal of Youth Development

This study investigated change in divergent thinking (DT), an indicator of creative potential, at 2 gender- specific residential summer camps. Additionally, this study examined whether the change in DT varied by gender and by the type of activities campers self-select. Quantitative methods, using a quasi- experimental design was used in order to understand differences in camper scores. A total of 189 youth, 100 girls, 89 boys, between the ages of 9 and 14 years participated in the current study. Participants were administered a modified version of Guilford's (1967) alternate uses task, a measure of DT, in which respondents were asked …

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Heart And Shield Family Violence Prevention Program, Jill Baker-Tingey, Pamela Powell, Crystal Powell Dec 2018

Heart And Shield Family Violence Prevention Program, Jill Baker-Tingey, Pamela Powell, Crystal Powell

Journal of Youth Development

Children exposed to domestic violence (DV) inadvertently learn behaviors that make them more likely to become victims and/or perpetrators later in life unless they learn skills to address childhood trauma. This article discusses how two rural community needs assessments identified that DV prevention was a high-priority issue, the effects of DV on youth mental and physical health, and the resulting Heart and Shield Family Violence Prevention Program, a Cooperative Extension program designed to strengthen family relationships and break the cycle of violence. Implications for practice include helping youth build healthy relationships, incorporating DV awareness training in staff/volunteer professional development, collaborating …

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System For The Application Of Hydrostatic Pressure And Mechanical Strain To Cell Cultures, Justin Bacaoat Dec 2018

System For The Application Of Hydrostatic Pressure And Mechanical Strain To Cell Cultures, Justin Bacaoat

All Theses

Pressure and stretch are two of the primary forces thatresult in mechanotransductory eventswhichregulatecertainaspects ofhuman health and disease. Laboratory systems such as the commercially available Flexercell® system and a variety of custom-made setups are currently used in research to systematically apply stretch and hydrostatic pressure independently, or in conjunction to cell and tissue cultures. However, these systems do not allow for the decoupling of pressure and stretch under the same culture conditions. The present study aims to design, fabricate, and calibratea device that can apply pressure and stretch simultaneously, as well as independently to cells in culture. Moreover, in order to …

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Procedurally Generating Biologically Driven Bird And Non-Avian Dinosaur Feathers, Jessica Renee Baron Dec 2018

Procedurally Generating Biologically Driven Bird And Non-Avian Dinosaur Feathers, Jessica Renee Baron

All Theses

A key element in computer-graphics research is representing the world around us, and immense inspiration may be found in nature. Algorithms and procedural models may be developed that can describe the three-dimensional shape of objects and how they interact with light. This thesis focuses particularly on bird and other dinosaur feathers and their structure. More specifically, it addresses the problem of procedurally generating biologically driven geometry for modeling feathers in computer graphics. As opposed to previously published methods for generated feather geometry, data is derived from a myriad of real-world specimens of feathers and used in creating graphical models of …

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An Exploratory Case Study On The Impacts Of Functional Fitness On Physical Functioning, Instrumental Activities Of Daily Living And Quality Of Life For Adults With Physical Disabilities, Brooke Beidler Dec 2018

An Exploratory Case Study On The Impacts Of Functional Fitness On Physical Functioning, Instrumental Activities Of Daily Living And Quality Of Life For Adults With Physical Disabilities, Brooke Beidler

All Theses

The purpose of this study was to explore the specific case of participating in a functional fitness program for adults with physical disabilities. Although there is a growing body of literature concerning the importance of physical exercise for individuals with disabilities, little to no research has been completed specifically concerning the utilization of functional fitness. This study defines functional fitness as a physical exercise program, and explores the phenomenon of impacts to functioning for the participants who were involved. Through the means of case study methodology, this study assessed the impacts of functional fitness participation on physical functioning, instrumental activities …

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Investigation Of Fungi Causing Twig Blight Diseases On Peach Trees In South Carolina, Martha Jennie Hudgins Froelich Dec 2018

Investigation Of Fungi Causing Twig Blight Diseases On Peach Trees In South Carolina, Martha Jennie Hudgins Froelich

All Theses

In 2016, fungal pathogens causing twig blight disease were isolated from symptomatic one-year-old shoots from peach orchards in 6 locations in South Carolina. Four twig blight pathogens, which included Phomopsis amygdali, Botryosphaeria obtusa, Leucostoma persoonii, and Cytospora sp., were isolated. L. persoonii was isolated in the highest frequency, followed by P. amygdali and B. obtusa. All pathogens were sensitive to thiophanate-methyl (FRAC 1), pyraclostrobin, and azoxystrobin (both FRAC 11). However, they were not sensitive to boscalid and fluopyram (both FRAC 7). L. persoonii exhibited less sensitivity to difenoconazole and propiconazole (both FRAC 3) while P. amygdali and B. obtusa were …

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Intermittent Estimation Of Volumetric Mass Transfer Coefficient Using Offgas Sensor Data For Continuous Our Estimation For Cho Cell Culture, Swadeel Deepak Gaad Dec 2018

Intermittent Estimation Of Volumetric Mass Transfer Coefficient Using Offgas Sensor Data For Continuous Our Estimation For Cho Cell Culture, Swadeel Deepak Gaad

All Theses

For the last several years drugs based on monoclonal antibodies have been manufactured using Chinese Hamster Ovaries (CHO) cells by the bio-pharmaceutical industries to treat cancer and other autoimmune diseases. Several control strategies are used to increase the productivity and efficiency in bio-pharmaceutical manufacturing. Cell growth can be controlled by adjusting the feed rate based on oxygen uptake rate of the cells in the bioreactor. Determining the volumetric mass transfer coefficient and oxygen saturation concentration is vital in correctly estimating oxygen uptake rate. Thus, a robust and efficient method to determine volumetric mass transfer coefficient and oxygen saturation concentration, which …

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Are Values Valuable? Individual Difference Moderators On The Effects Of Economic Stress On Job Satisfaction, Elyssa Johnson Dec 2018

Are Values Valuable? Individual Difference Moderators On The Effects Of Economic Stress On Job Satisfaction, Elyssa Johnson

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Economic stress and financial strain have been shown to have a negative impact on both physical and mental well-being thus making it an important area to continue to perform research on to fully understand how stress impacts individuals (Leana, Mittal & Stiehl, 2012; Sinclair & Cheung, 2016). The proposed study looked to advance research on economic stress by understanding the mediated and moderated mechanisms that impact the relationship between economic stress and job satisfaction. By using a subjective measure of economic stress, perceived income adequacy, as opposed to an objective measure of economic stress such as income, individual differences were …

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The Effects Of Planting Date And Varietal Susceptibility Of Gossypium Hirstutum L. On Thrips, Cody D. Kerns Dec 2018

The Effects Of Planting Date And Varietal Susceptibility Of Gossypium Hirstutum L. On Thrips, Cody D. Kerns

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Thysanoptera (Haliday), or thrips, are minute, polyphagous insects known globally for their role as crop pests. One species important economically to South Carolina and the southeastern United States is the tobacco thrips, Frankliniella fusca (Hinds). This species is the most predictable pest of upland cotton, Gossypium hirstutum (L.). Thrips are particularly damaging to cotton when they infest seedling cotton. In some years, tobacco thrips are recorded as the most detrimental pest of cotton in terms yield loss. Yield loss from tobacco thrips infestations varies widely between years and even within the same year. By analyzing agricultural control practices, an accurate …

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The Impact Of Surfactant On The Transport Of Toxoplasma Gondii Oocysts Through Unsaturated Soil, Erin N. Kinsey Dec 2018

The Impact Of Surfactant On The Transport Of Toxoplasma Gondii Oocysts Through Unsaturated Soil, Erin N. Kinsey

All Theses

Toxoplasma gondii is among the most prevalent parasites affecting warm-blooded animals, including humans. In humans, it poses health risks for immunocompromised populations and for fetuses including damage to the eyes brain and other organs. Humans may come in contact with T. gondii through the consumption of infected animal flesh or accidental contact with cat feces. Its life cycle includes numerous intermediate hosts and felids as the definitive host, which has allowed for its spread through nearly the entire world. T. gondii has been detected in open water, soil and animal feeds. Its transport has not been well studied to this …

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The Realm Of Appearances, Dustin Lee Massey Dec 2018

The Realm Of Appearances, Dustin Lee Massey

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My work references images from social media to construct a world that exists somewhere between our physical world and the digital. I do this to help me understand how our reliance on technology, and our use of social media affects how we process information. I examine the cultural implications this media saturation has had, or will have on our society. Specifically, I am looking at the “digital divide.” My work explores the divide between the way we often think and behave online, and how it differs from our offline self. This is accomplished by elevating the value of the original …

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Liposomal Combination Drug And Sirna Delivery To Combat Drug-Resistant Ovarian Cancer, Emily Margaret Miller Dec 2018

Liposomal Combination Drug And Sirna Delivery To Combat Drug-Resistant Ovarian Cancer, Emily Margaret Miller

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Ovarian cancer is the deadliest gynecological malignancy and the fifth leading cause of cancer death overall. Due to lack of early symptoms, ovarian cancer is most commonly diagnosed in the distant stages, drastically reducing the 5 year survival rate from 92% in early stage diagnoses to 29% in advanced stage cases. This large difference is thought to be linked to the high rate of recurrence and development of drug resistance to chemotherapeutics in ovarian cancer patients. First-line therapy includes a combination of tumor resection surgery and chemotherapy regimen including cisplatin, a DNA-alkylating agent, and paclitaxel, a microtubule stabilization agent. However, …

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Both Victims And Villains: A Discourse Analysis Of Shifting Portrayals Of The Unauthorized Immigrant In Two Partisan News Outlets, Andrew Moore Dec 2018

Both Victims And Villains: A Discourse Analysis Of Shifting Portrayals Of The Unauthorized Immigrant In Two Partisan News Outlets, Andrew Moore

All Theses

This research was designed to examine how two examples of partisan news media contribute to America’s collective understanding of unauthorized immigration, and more specifically, the immigrant himself/herself. After tracing a general history of discourses of the unauthorized immigrant in America through a review of relevant literature, these understandings of immigration were then used as a point of reference and comparison for current journalism on the topic. More than 500 articles about unauthorized immigration were collected, derived from left-leaning Slate.com and right-leaning Breitbart.com. Then, using a discursive analysis in the tradition of poststructuralist philosopher Michel Foucault, emergent patterns of power within …

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The Puzzled Landscape, Amanda Musick Dec 2018

The Puzzled Landscape, Amanda Musick

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This series of work diverts landscape photography into object, material, and riddle. I investigate how we are conditioned to view and interact with the natural environment through constructing new, illusive vistas and forms using photographs I made in physical landscapes. Photographs that range from iconic views to details of rock textures are combined and altered to construct dioramas that represent forest, desert, ocean, and mountain landscapes. The dioramas are then photographed and deconstructed. Their remains are reorganized into piles and photographed as unrecognizable representations of the original place. The piles exist in a white, voided space portraying a sense of …

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Combinatorial Therapy Of Doxorubicin And Mdr1 Sirna By Polymeric Micellar Nanoparticles In Treatment Of Multidrug Resistance In Breast Cancer, David Lamar Oglesby Dec 2018

Combinatorial Therapy Of Doxorubicin And Mdr1 Sirna By Polymeric Micellar Nanoparticles In Treatment Of Multidrug Resistance In Breast Cancer, David Lamar Oglesby

All Theses

Despite tremendous progress within the field of oncology, highly metastatic forms of breast cancer remain particularly challenging to effectively treat. Systemically delivered chemotherapy with cytotoxic agents typically requires some convalescence time between treatments – allowing rapidly growing cancer types to develop resistance. Multidrug resistance, also known as pump-dependent, is particularly difficult to treat as it functions through overexpression of P-glycoprotein, an efflux pump which can produce resistance to a range of chemotherapeutics. We have previously developed the cationic micellar copolymer poly(lactide-co-glycolide)-g-poly(ethylenimine) (PgP) and demonstrated its capacity as a vector for gene therapy. Here, we examine the capacity of PgP in …

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The Effect Of Retort Processing Factors On The Severity Of Film Surface Impression, Jirawich Panin Dec 2018

The Effect Of Retort Processing Factors On The Severity Of Film Surface Impression, Jirawich Panin

All Theses

Retort processing conditions of temperature, overpressure, and sterilization time were used to determine the impression depth on the pouch surface from contact with the retort rack during retort processing, also referred to as a waffling defect. Retortable flexible pouches were filled with 1,000 mL of water and processed in a horizontal water spray retort. A confocal laser scanning microscope was used to measure severity of the waffling defects. Data collected during this study showed that higher temperatures resulted in higher measured impression depth values (p<0.05) in all of the tested combinations. However, when the pouches were retorted at different temperatures, different effects of retort overpressure were observed. At a low temperature (111 deg. C), the higher overpressure resulted in higher severity of the waffling defects (p<0.05). In contrast, at a high temperature (131 deg. C), the higher overpressure resulted in lower severity of the waffling defects (p<0.05). When samples were retorted at different sterilization time settings, there was only one condition where a statistical difference in the impression depth values was observed (p<0.05). The longer sterilization time resulted in higher measured impression depth (p<0.05) only if the samples were retorted at a high temperature of 131 deg. C with a low overpressure of 26 psig. There was no statistical difference (p>0.05) in measured impression depth when samples were retorted at different sterilization time settings in …

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Histological Evaluation Of The Effects Of Diabetes On Renal Vasculature, David Pollard Dec 2018

Histological Evaluation Of The Effects Of Diabetes On Renal Vasculature, David Pollard

All Theses

Diabetes mellitus currently affects 8.3% of the world’s population, roughly 387 million people as of 2014, with numbers rising steadily. Diabetes is a major risk factor for vascular pathology, affecting the vascular wall at the cellular and extracellular level. The field of tissue engineering has proven to have great potential in treating cardiovascular disease and kidney failure. In order to develop tissue-engineered replacements resistant to the alterations induced by a diabetic environment, the modifications of the native tissues are important to be elucidated. Cardiovascular remodeling is due to elevated levels of fatty deposits along the vessel wall, hyperglycemia and chronic …

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An Experimental Investigation Of Combined Symmetric Asymmetric Composite Laminates, Guy Maximilian Kemmann Dec 2018

An Experimental Investigation Of Combined Symmetric Asymmetric Composite Laminates, Guy Maximilian Kemmann

All Theses

It has been found that certain asymmetric composite laminates exhibit bistability, and are thus called bistable composite laminates. A bistable composite laminate is a composite laminate that exhibits multiple stable static equilibrium states. If the bistable composite is actuated it will snap to its secondary equilibrium state and then remain there without any further actuation. This unique behavior of bistable composites has made them the subject of much research in the areas of morphing structures as well as energy harvesting. Much of the research done on bistable laminates has been focused on the fundamental characterization of the bistable behavior and …

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