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Cellulose Nanocrystals As 'Green' Emulsifiers Stabilized Crude Oil In Water Emulsions, Omayma Alazzam
Cellulose Nanocrystals As 'Green' Emulsifiers Stabilized Crude Oil In Water Emulsions, Omayma Alazzam
Electronic Theses and Dissertations
This study examines the ability of CNC to stabilize crude o/w Pickering emulsions. The effects of concentration of CNC, ionic strength of the aqueous phase, volume fraction of crude oil to water, and the presence of divalent ions on the stability of crude o/w emulsions were examined. Emulsions stabilized with different concentrations of CNC vary from 0.1 to 1.0wt% were prepared and examined by visual assessment for creaming analysis and microscopic pictures to analyze droplet size and size distribution. Low concentration of CNC as 0.1wt% didn’t help with forming stable emulsions. As the concentration of CNC stabilized the emulsions increased, …
Apply Now!: Utilizing Application Date To Predict College Enrollment, Jennifer Leigh Phillips
Apply Now!: Utilizing Application Date To Predict College Enrollment, Jennifer Leigh Phillips
Electronic Theses and Dissertations
Using Perna’s (2006) college choice model as the conceptual framework, the researcher utilized two data analyses to complete this study. First, multiple regressions were performed on three groups of variables: entrance examination, core high school gpa, and cumulative high school gpa; gender, ethnicity, and residency; and first-generation status and Mississippi congressional district. Second, a chi square test was completed to discover how likely it is that a student’s application date is related to the acceptance rate (likelihood of acceptance) and yield rate (likelihood of matriculating) of the University of Mississippi freshman class.
Silence Descends: Lynchings And Their Aftermath In Lafayette And Union Counties, Mississippi, Jonathan Smith
Silence Descends: Lynchings And Their Aftermath In Lafayette And Union Counties, Mississippi, Jonathan Smith
Electronic Theses and Dissertations
The role of silence is explored with regard to how two lynchings in North Mississippi have, or have not, been memorialized. L.Q. Ivy was lynched in Union County in 1925. Despite several newspaper articles over the decades since the lynching has occurred his death is not acknowledged in the local history narrative, nor is it memorialized with a marker. Elwood Higginbottom was lynched in neighboring Lafayette County in 1935 and, despite a silence that has persisted for decades, has recently been memorialized. The process of memorializing Higginbottom’s lynching and what it has meant to the family is compared to the …
Looking Into The Past: The Diversification Of Amphibians In The Neotropical Savannas, Ísis Da Costa Arantes
Looking Into The Past: The Diversification Of Amphibians In The Neotropical Savannas, Ísis Da Costa Arantes
Electronic Theses and Dissertations
Aim: Reveal the evolutionary processes that contributed to biotic diversification in the Cerrado savanna using amphibians as a model. Evolutionary patterns were investigated by comparing the phylogeographic and biogeographic history of biome-specific yet widely distributed amphibian species (Chiasmocleis albopunctata, Dendropsophus rubicundulus and Physalaemus nattereri). Location: Cerrado region, central South America. Methods: I sampled thousands of loci randomly distributed throughout the genomes of all three species. I applied phylogenetic, phylogeographic, demographic, and coalescent species delimitation methods to these molecular data, in combination with species distribution modeling for the past, in order to resolve questions of evolutionary history, taxonomic diversity, …
X-Ray Fluorescence Analysis Of Tuscaloosa Marine Shale Cuttings From Horizontally Drilled Wells, Xiaotian Wang
X-Ray Fluorescence Analysis Of Tuscaloosa Marine Shale Cuttings From Horizontally Drilled Wells, Xiaotian Wang
Electronic Theses and Dissertations
The Upper Cretaceous Tuscaloosa Marine Shale (TMS) is a gray to black fissile marine shale deposited at depth of between 10,000 and 20,000 ft near the ancient Gulf of Mexico. The TMS has been gradually developed as a hydrocarbon reservoir in the past several decades. But there are rare researches evaluating geochemical properties based on chemostratigraphy of the TMS. The objective of this research is to spatially evaluate geophysical properties and chemostratigraphy of the TMS, to characterize elemental changes along well paths and to evaluate the effect of basic sample clean on XRF results. The data available for this study …
Development And Characterization Of Sustained-Release Formulations Via Novel Hot Melt Extrusion Techniques, Bjad Khalaf Almutairy
Development And Characterization Of Sustained-Release Formulations Via Novel Hot Melt Extrusion Techniques, Bjad Khalaf Almutairy
Electronic Theses and Dissertations
Hot melt extrusion (HME) is a leading technology that can be applied to many pharmaceutical preparations as solid dispersions. Part of this research project focus on injecting pressurized carbon dioxide (P-CO2) gas during the HME process. These combined techniques have an additional advantage of being adaptable and portable to a hot melt extruder instrument. The use of HME alongside with other techniques (P-CO2 or co extrusion process) for preparing an improved controlled/sustained release formulation is the main theme of this research project. Current research focusing on Active Pharmaceutical Ingredients (APIs) with good aqueous solubility requires novel approach to obtain tailored …
Optimizing The Performance Of Complex Engineering Systems Aided By Artificial Neural Networks, Khalil Qatu
Optimizing The Performance Of Complex Engineering Systems Aided By Artificial Neural Networks, Khalil Qatu
Electronic Theses and Dissertations
In the first problem Polyetherimide graphene nanoplatelets papers (PEIGNP) were tested with different graphene loadings varying from 0-97 weight percent (WT%). The resulting stress-strain curves were utilized to develop two ANN models. Stress-controlled and strain-controlled models. Both models shoan excellent correlation to the experimental. Several Mechanical properties were calculated from the predicted stress-strain curves namely; toughness maximum strength maximum strain and maximum tangent modulus. Both models captured the same overall behavior of the PEIGNP composite. However the strain-controlled model was found to predict lower stress than the stress-controlled model. Finally a Graphical User Interface (GUI) was developed to aid in …
Impact Of Quality Attributes Of Topical Products On Their Performance, Purnendu Kumar Sharma
Impact Of Quality Attributes Of Topical Products On Their Performance, Purnendu Kumar Sharma
Electronic Theses and Dissertations
Topical drug delivery such as creams and emulsions are most widely used in the treatment of skin diseases. It offers advantages such as non-invasiveness, direct drug delivery at the site of action, patient compliance and lower cost of treatment. However, topical formulation development faces challenges in the market in terms of critical evaluation parameters for understanding the effect of manufacturing process variables, the role of excipients and the effect of its compositions and skins buffering capacity. The main objective of the first project was to investigate the effect of different manufacturing process variables which can influence the microstructure thereby understanding …
The Transfer Culture In College Basketball, Ariel Massengale
The Transfer Culture In College Basketball, Ariel Massengale
Electronic Theses and Dissertations
In 2017, 18.5% of female women’s basketball players transferred. That ranked the highest it has ever been, second on the list for women’s sports and higher than any male sport (NCAA.org, 2018). The decision to transfer is a multifaceted issue that involves many reasons from generational differences, social media, technology, among other factors and has been rapidly increasing. For the lack of empirical studies, the foundation of this research was built on studies that focused on student retention because the same reasons a student may be retained could be the very reason a student decides to transfer depending on the …
Analytical Modeling And Life Cycle Assessment Of A Solar Powered Vapor Absorption Cooling System, Harold A. Walters
Analytical Modeling And Life Cycle Assessment Of A Solar Powered Vapor Absorption Cooling System, Harold A. Walters
Electronic Theses and Dissertations
Vapor absorption cooling systems (VACS) offer an environmentally friendly alternative to the standard vapor compression cooling systems (VCCS) for cooling homes, businesses, factories, and other buildings. VACS use low-grade thermal energy to achieve a cooling effect and require minimal electrical input for the liquid solution pump used for circulation within the system. The thermal energy which powers these systems can be provided through several means; one popular form is through the use of solar thermal collectors. This paper provides a process for determining the overall size and configuration of the VACS depending upon the operating conditions of selected components. A …
Story Reading As A Method For Cognate Vocabulary Learning In Preschool Children, Patricia Thomasio Quinelato
Story Reading As A Method For Cognate Vocabulary Learning In Preschool Children, Patricia Thomasio Quinelato
Electronic Theses and Dissertations
This qualitative experimental study aims to investigate the learning outcomes of foreign-language cognate vocabulary in preschool children with the use of story reading; more specifically, how the frequency of appearance of the words in children's stories affect the learning outcomes of foreign-language cognate vocabulary and how the children's retention of highly similar cognates compares to that of partial cognates. Stories are believed to be an authentic and credible source of knowledge; they make information more memorable and promote active meaning making (Rossiter, 2002). The procedure includes six sessions with the children for each story: 1. a vocabulary pre-test before each …
Optimization Of Reproductive Success In Beef Cattle By Implementation Of Estrus Resynchronization, Nutritional Management, And Evaluation Of Disease Prevalance, Kaitlin M. Epperson
Optimization Of Reproductive Success In Beef Cattle By Implementation Of Estrus Resynchronization, Nutritional Management, And Evaluation Of Disease Prevalance, Kaitlin M. Epperson
Electronic Theses and Dissertations
The beef industry is a unique community of operations that employ different management techniques to accomplish a similar goal. Like other facets of animal agriculture, profitability of the beef industry is heavily reliant upon the implemented management practices. Reproductive efficiency is an area of management that has great potential to positively influence the success of beef production. Through the use of reproductive technologies such as estrus synchronization and AI, a greater percentage of females can become bred to superior sires, breeding and calving seasons can be shortened, calf uniformity increased, and economic return maximized (Odde, 1990; Rodgers et al., 2012; …
Multi-Step Forecast Of The Implied Volatility Surface Using Deep Learning, Nikita Medvedev
Multi-Step Forecast Of The Implied Volatility Surface Using Deep Learning, Nikita Medvedev
Electronic Theses and Dissertations
Implied volatility is an essential input to price an option. Machine learning architectures have shown strengths in learning option pricing formulas and estimating implied volatility cross-sectionally. However, implied volatility time series forecasting is typically done using the univariate time series and often for short intervals. When a univariate implied volatility series is forecasted, important implied volatility properties such as volatility skew and the term structure are lost. More importantly, short term forecasts can’t take advantage of the long term persistence in the volatility series. The thesis attempts to bridge the gap between machine learning-based implied volatility modeling and multivariate multi-step …
Instance Segmentation And Object Detection In Road Scenes Using Inverse Perspective Mapping Of 3d Point Clouds And 2d Images, Chungyup Lee
Instance Segmentation And Object Detection In Road Scenes Using Inverse Perspective Mapping Of 3d Point Clouds And 2d Images, Chungyup Lee
Electronic Theses and Dissertations
The instance segmentation and object detection are important tasks in smart car applications. Recently, a variety of neural network-based approaches have been proposed. One of the challenges is that there are various scales of objects in a scene, and it requires the neural network to have a large receptive field to deal with the scale variations. In other words, the neural network must have deep architectures which slow down computation. In smart car applications, the accuracy of detection and segmentation of vehicle and pedestrian is hugely critical. Besides, 2D images do not have distance information but enough visual appearance. On …
The Generation Z Handbook: A Grounded Theory Approach To Motivation In The Workplace, Justin Mahutga
The Generation Z Handbook: A Grounded Theory Approach To Motivation In The Workplace, Justin Mahutga
Electronic Theses and Dissertations
Organizations must develop human capital to remain competitive in today’s economic landscape (Crook, Todd, Combs, Woehr, & Ketchen, 2011; Noe, 2017). Motivation is one aspect of human capital development that organizational research has difficulty understanding (Kovach, 1980), and given the recent introduction of Generation Z into the workforce (Ferri-Reed, 2016), this thesis seeks to understand the process of organizational motivation for Generation Z from a communication perspective. By applying grounded theory methods to 13 interviews, I illustrate several exploratory relationships within an emergent framework to describe the process of motivation for Generation Z participants. Primarily, subjects demonstrate that through the …
Nodule Zone-Specific Gene Expression In Soybean, Sadikshya Aryal
Nodule Zone-Specific Gene Expression In Soybean, Sadikshya Aryal
Electronic Theses and Dissertations
Nitrogen is one of the most limiting nutrients for plant growth and yield. Leguminous plants such as soybean (Glycine max) have developed the ability to form a symbiotic association with nitrogen fixing rhizobia. This symbiotic association results in the formation of unique structures called nodules that originate from root cortex via de novo cell differentiation. During soybean nodule development, two major nodule zones, the Nodule primordium (Npr) in the center and the nodule parenchyma (Npa) in the periphery, are clearly distinguishable. Npr gives rise to infection zone (IZ), and the Npa holds vascular bundles. However, it is not clear what …
Improvement Of Dried Distillers’ Grains With Solubles Utilizing Pretreatments And Fungal Fermentation, Burgandy Zschetzsche
Improvement Of Dried Distillers’ Grains With Solubles Utilizing Pretreatments And Fungal Fermentation, Burgandy Zschetzsche
Electronic Theses and Dissertations
Limited inclusion of distillers’ grains in animal feed is primarily due to low protein and high fiber content. Other elements, such as phytate phosphorus levels in DDGS are still an issue for monogastric animals such as swine, poultry, and fish. Furthermore, unabsorbed phytic acid in manure poses a high risk for environmental pollution, because bacteria can hydrolyze phytic acid into free phosphorus that can result in algal blooms and eutrophication of surface or ground water. The objective of this thesis was to improve the nutritional value of corn dried distillers’ grains with solubles (DDGS). This was done utilizing submerged fungal …
Applying Machine Learning Algorithms For The Analysis Of Biological Sequences And Medical Records, Shaopeng Gu
Applying Machine Learning Algorithms For The Analysis Of Biological Sequences And Medical Records, Shaopeng Gu
Electronic Theses and Dissertations
The modern sequencing technology revolutionizes the genomic research and triggers explosive growth of DNA, RNA, and protein sequences. How to infer the structure and function from biological sequences is a fundamentally important task in genomics and proteomics fields. With the development of statistical and machine learning methods, an integrated and user-friendly tool containing the state-of-the-art data mining methods are needed. Here, we propose SeqFea-Learn, a comprehensive Python pipeline that integrating multiple steps: feature extraction, dimensionality reduction, feature selection, predicting model constructions based on machine learning and deep learning approaches to analyze sequences. We used enhancers, RNA N6- methyladenosine sites and …
Organizational Forms For Community Collaboration To Confront Homelessness, Suzanne Smith
Organizational Forms For Community Collaboration To Confront Homelessness, Suzanne Smith
Electronic Theses and Dissertations
Homelessness is a complex social problem that touches many different sectors of a community--not only housing, but also healthcare, education, criminal justice, workforce, and more. Because of these complex interrelationships, homelessness as a social problem lends itself to collaborative governance where service providers across sectors come together to address the problem. This research examines homeless service provision as an example of how local government, nonprofit organizations, community funders, and other stakeholders collaborate and what knits those networks together. This research project encompasses three major efforts: a comparative case study of six different communities and how they have organized to confront …
Effects Of A Low Allergenic Soybean Variety On Gut Permeability, Digestibility And Growth Performance In Pigs, Katelyn M. Zeamer
Effects Of A Low Allergenic Soybean Variety On Gut Permeability, Digestibility And Growth Performance In Pigs, Katelyn M. Zeamer
Electronic Theses and Dissertations
Soybeans are the ‘gold standard’ protein source in pig diets, with lower inclusion levels in weaned pig diets due to transient inflammatory and hypersensitivity responses. This study evaluated a low allergenic (LA) soybean seed containing low Trypsin inhibitors, lectins, and P34 protein. The objective was to determine the impact of weaned pig diets containing LA soybean in both meal (LASBM) and full fat ground (LAGR) forms on the intestinal permeability and gut microbial composition, digestibility of protein and amino acids, and growth performance, in comparison to conventional (CON) soybeans and animal proteins (ANIM). In study 1, 60 weaned barrows (20.9 …
Role Of Glial Glutamate Transporter In Animal Model Of Acute And Chronic Inflammatory Pain, Ghallab Alotaibi
Role Of Glial Glutamate Transporter In Animal Model Of Acute And Chronic Inflammatory Pain, Ghallab Alotaibi
Electronic Theses and Dissertations
No abstract provided.
A Seed Dormancy Gene-Mediated Biotechnology To Mitigate Transgene Flow Into Weedy Rice, Luai Nahar Muhammad
A Seed Dormancy Gene-Mediated Biotechnology To Mitigate Transgene Flow Into Weedy Rice, Luai Nahar Muhammad
Electronic Theses and Dissertations
Transgene flows into wild/weedy relatives may cause ecological and economic problems. Seed dormancy is an adaptive trait that distributes germination over time and promotes persistence of weeds in agroecosystems. Silencing natural genes controlling seed dormancy (SD) could promote germination and reduce weed adaptability. The goal of this project was to develop a transgenic mitigation (TM) technology by linking to a primary transgene with an SD gene-silencing structure, as a tandem construct for transformation, to reduce the risk of gene flow into weed populations. In this research, the Bar (Bialaphos) gene for resistance to the glufosinate herbicide was used as a …
Identifying Critical Genes For Cholesterol Metabolism In Macrophages Using Crispr-Cas9 Whole-Genome Screens, Kevin Wanniarachchi
Identifying Critical Genes For Cholesterol Metabolism In Macrophages Using Crispr-Cas9 Whole-Genome Screens, Kevin Wanniarachchi
Electronic Theses and Dissertations
Macrophage foam cells contribute to atherosclerotic plaque formation, a pathology that underlies heart disease, peripheral arterial disease and stroke. Foam cells form when macrophages take up excessive amounts of low-density lipoprotein (LDL) leading to elevated cellular levels of neutral lipids, which are packaged into lipid droplet organelles. Despite the high public health priority motivating research of cardiovascular disease processes, current understanding of macrophage cholesterol metabolism including mechanisms of LDL uptake, cholesterol trafficking, lipid droplet biogenesis, lipid droplet degradation and cholesterol efflux is limited. Here, we implemented a CRISPR-Cas9 whole genome screening strategy to identify critical genes regulating macrophage cholesterol metabolism. …
Former African-American Male Football Student-Athletes At Southeastern Conference Institutions And Their Transition From Athletics To Non-Athletic Careers, Deterrian L. Shackelford
Former African-American Male Football Student-Athletes At Southeastern Conference Institutions And Their Transition From Athletics To Non-Athletic Careers, Deterrian L. Shackelford
Electronic Theses and Dissertations
The problem of practice for this dissertation will address the perceived deficiencies in the cultivation of workplace readiness and the projection of career success among former African-American football student-athletes at Southeastern Conference institutions. The focus of this dissertation in practice will be to examine the perceived lack of development of academic, social and psychological skills in order to achieve a successful transition from athletics to non-athletic careers. This study will identify the applicable career and academic developments, discussed and articulated by former African-American male football student-athletes, which directly influence their employability qualities. Manuscript two will review data generated from the …
Geographic Variations Of Sound Channel Axis In The Global Ocean, Mukunda Kumar Acharya
Geographic Variations Of Sound Channel Axis In The Global Ocean, Mukunda Kumar Acharya
Electronic Theses and Dissertations
Sound signals are used for imaging and communication in the ocean. Underwater sound speed has a minimum at a certain depth that forms a sound channel for long-range underwater sound propagation. The geographic variation of sound channel is crucial in uses of underwater sound in various environments including ocean acoustic tomography and monitoring of global warming. In this work, sound speed and depth of the channel axis in the global ocean are characterized for their variation with the latitude, longitude, and depth.
The Plantation Pull: Modernities And Genre In The Anglo-Hispanic-Dutch Caribbean-Atlantic, 1831-1935, Natalie Magdalena Aikens
The Plantation Pull: Modernities And Genre In The Anglo-Hispanic-Dutch Caribbean-Atlantic, 1831-1935, Natalie Magdalena Aikens
Electronic Theses and Dissertations
Using Benedict Anderson’s Imagined Communities, “The Plantation Pull: Modernities and Genre in the Anglo-Hispanic-Dutch Caribbean-Atlantic, 1831-1935” contrasts the idea of homogeneous national ideals with depictions in literature of stratified geopolitical regions deeply divided by issues of race, ethnicity, socioeconomic status matching those ambivalent spaces described by Homi Bhabha in Nation and Narration. The project demonstrates in literature the way that the values of the capitalist plantation machine based around mechanization and modernization, what I term “the plantation pull,” nevertheless thwarts one of the major iterations of modernity in the nineteenth century: nation formation. The “plantation pull” …
Daily Metacognitive Questioning Sheets: Implementing Metacognitive Strategies In The Secondary Classroom, Shawna Sue Hill-Robinson
Daily Metacognitive Questioning Sheets: Implementing Metacognitive Strategies In The Secondary Classroom, Shawna Sue Hill-Robinson
Electronic Theses and Dissertations
This study investigated the possible impact that incorporating daily metacognitive questioning in a mathematics classroom could have on student achievement. The study integrated metacognition into the classroom through the daily use of metacognitive questioning sheets that were answered by students who participated in the research study. The study also explored patterns that emerged from the students’ individual responses on the metacognitive sheets using qualitative coding and analyses. Two classes of heterogeneously grouped high school dual-credit college algebra students were taught the same curriculum by the same teacher and given the same summative assessments during the study. One class received the …
Leading Learners To Level Up In A High School Mathematics Classroom, Jennifer Carnes Wilson
Leading Learners To Level Up In A High School Mathematics Classroom, Jennifer Carnes Wilson
Electronic Theses and Dissertations
How often are teachers surprised to find out at the end of a learning episode that students have not actually learned? The first Mathematics Teaching Practice from NCTM’s Principles to Actions asserts that “effective teaching of mathematics establishes clear goals for the mathematics that students are learning, situates goals within learning progressions, and uses the goals to guide instructional decisions” (NCTM, 2014, p. 10). Unfortunately, many teachers struggle to establish clear goals to focus learning, and many students struggle to meet those goals. This research study considered how well students predict success on learning targets for an upcoming test when …
X-Ray Crystal Structure Of Au36(Sph-Pch3)24 Nanomolecules, Vigneshraja Ganeshraj
X-Ray Crystal Structure Of Au36(Sph-Pch3)24 Nanomolecules, Vigneshraja Ganeshraj
Electronic Theses and Dissertations
Au36(SR)24 is one of the most comNanomolecules (NM) in gold NM field and crystal structures of Au36(SR)24 with different thiolate protecting ligand such as tert-butylbenzene thiol, thiophenol and cyclopentane thiol have been reported. It has been predicted that aromatic thiol protected Au36(SR)24 NM have same core structures like the other reported Au36(SR)24 NMs. Due to the steric and electronic conjugation effects the staples on the gold core exhibit minor changes in the bond length without affecting the gold core. By varying the Gold:Thiol ratio the NM size can be controlled. Herein, we report the synthesis, isolation and characterization of two …
Households And Changing Use Of Space At The Transitional Early Mississippian Austin Site, Benjamin Garrett Davis
Households And Changing Use Of Space At The Transitional Early Mississippian Austin Site, Benjamin Garrett Davis
Electronic Theses and Dissertations
The Austin Site (22TU549) is a village site located in Tunica County, Mississippi dating to approximately A.D. 1150-1350, along the transition from the Terminal Late Woodland to the Mississippian period. While Elizabeth Hunt’s (2017) masters thesis concluded that the ceramics at Austin emphasized a Late Woodland persistence, the architecture and use of space at the site had yet to be analyzed. This study examines this architecture and use of space over time at Austin to determine if they display evidence of increasing institutionalized inequality. This included creating a map of Austin based on John Connaway’s original excavation notes, and then …