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Preparation And Characterization Of Cellulose-Based Biodegradable Films From Switchgrass And Spent Coffee Grounds, Sajal Bhattarai
Preparation And Characterization Of Cellulose-Based Biodegradable Films From Switchgrass And Spent Coffee Grounds, Sajal Bhattarai
Electronic Theses and Dissertations
Plastic packaging materials, which take more than 700 years to degrade, have polluted land, water, and the atmosphere. The consequent environmental and life hazards require attention to alleviate plastic concerns. Developing plastic-replacing materials could be a viable option. To this end, lignocellulosic fraction from inexpensive and widespread agricultural biomass switchgrass (SG) and biowaste spent coffee grounds (SCG) offer a possible solution, mainly to prepare biodegradable packaging films. Herein, lignocellulosic fraction from SG and SCG has been extracted, solubilized in ZnCl2 solution, and crosslinked through Ca2+ ions to prepare gels and cast biodegradable films. The SG was subjected to three extraction …
To Study The Factors Influencing The Sampling Variability On Microbiological Analysis Of Milk And Whey, Ratul Kalita
To Study The Factors Influencing The Sampling Variability On Microbiological Analysis Of Milk And Whey, Ratul Kalita
Electronic Theses and Dissertations
Sampling and analysis are integral parts of dairy processing in quality control, process monitoring and control, and meeting regulatory standards. Accurate sampling is vital to avoid erroneous analysis results and interpretation. The sampling process depends on the appropriateness of sample collection, transportation, storage, and analysis conditions. The bacterial heterogeneity and cluster formation, structural heterogeneity of food, sample unit and size, frequency, and sampling methods, are also crucial in sampling. We aimed to evaluate the influence of sample volume, sampling frequency, and sampling methods in experimental processing lines of whole milk, skim milk, and whey. To standardize the experimental protocols, a …
Development Of A Chromatographic Method To Authenticate Aspirin Brands, Megan Guetzloff
Development Of A Chromatographic Method To Authenticate Aspirin Brands, Megan Guetzloff
Electronic Theses and Dissertations
Counterfeit pharmaceuticals pose a threat to society that can include inaccurate amounts of the active pharmaceutical ingredient (API), no API, or containing off-target compounds. For example, there are many recent examples of counterfeit pharmaceuticals containing potentially lethal doses (> 2 mg) of fentanyl (i.e., a synthetic opioid). Current measures to combat illicit pharmaceuticals (e.g., unique packaging and product serialization) have merit, however with evolved technologies, counterfeiters can relatively easily simulate these measures and continue to distribute illicit pharmaceuticals. The only accurate way to definitively determine that a suspected counterfeit is, in fact, counterfeit is advanced chemical analysis. However, current methods …
Relative Radiometric Correction Of Pushbroom Satellites Using The Yaw Maneuver, Christopher Begeman
Relative Radiometric Correction Of Pushbroom Satellites Using The Yaw Maneuver, Christopher Begeman
Electronic Theses and Dissertations
Earth imaging satellites commonly acquire multispectral imagery using linear array detectors formatted as a pushbroom scanner. Landsat 8, a well-known example, uses pushbroom scanning and thus has 73,000 individual detectors. These 73,000 detectors are split among 14 different focal plane modules (FPM), and each detector and FPM exhibit unique behavior when monitoring a uniform radiance value. To correct for each detectors differences in sensor measurement a novel technique of relative gain estimation that employs an optimized modified Signal-to-Noise Ratio through a 90˚ yaw maneuver, also known as side slither, is presented that allows for both FPM and detector level relative …
Exploring Bioprocessing Technologies For Diverse Industrial Application Of Canola, Ahmad Fawzi N Alhomodi
Exploring Bioprocessing Technologies For Diverse Industrial Application Of Canola, Ahmad Fawzi N Alhomodi
Electronic Theses and Dissertations
Globally, canola is the second largest oilseed crop after soybean, which is processed for the commercial production of high value oil. The industrial processing steps for canola oil extraction include preprocessing (cleaning, pressing, flaking, and cooking), mechanical pressing, and/or organic solvents. This process results in large quantities of protein-rich (~ 40% dry basis) meal as a co-product. The meal is used partially in animal diet (<30% inclusion) due to high levels of antinutritional factors (ANFs) such as high fibers, phytic acid, and glucosinolates, and low metabolizable energy. Thus, this research was designed to examine various bioprocessing technologies (i.e., traditional sprouting, solid state fermentation, submerged state fermentation, co-culture fermentation, mild pretreatments, and their combinations) for possible advancement in canola use. Canola seed sprouting for 6-day period led to an increase in protein content and a reduction in ANFs and oil content of sprouts compared to ungerminated seed. Subsequent submerged state fermentation of 6- day old sprouts using three different strains (Aureobasidium pullulans, Trichoderma reesei and Neurospora crassa) further increased protein content and lowered ANFs. Solid-state fermentation of 144 h old sprouts using A. pullulans, N. crassa and T. reesei enhanced the protein content and reduced ANFs of sprouts. Sprouting canola seed for three days helped in hull removal, leading to high protein meal accompanied by low fiber and phytic acid level. Three-day seed sprouting had no effect on oil yield, but free fatty acid content was higher compared to seed oil. Co-culture fermentation of HECM under solid state process showed maximum reduction in fiber content with co-culture of A. pullulans and N. crassa while a combination of A. pullulans and T. reesei promoted the highest GLS and phytic acid reductions compared to other combinations, which indicated the advantage of coculture inoculation over monoculture in terms of ANFs reduction. Mild pretreatment of HECM using deionized water resulted in washed HECM (WHECM) with lower soluble sugars and GLS compared to untreated HECM, whereas protein and amino acid were concentrated due to the removal of soluble components. WHECM compared to HECM showed higher protein digestibility when fed to rainbow trout. Subsequent mono- and coculture fermentation of HECM and WHECM under submerged process resulted in higher protein and amino acid content and lower ANFs levels compared to uninoculated controls. The results of cellulase, endoglucanase and β-glucosidase activity indicated the crucial role of used substrates, fungi, fermentation modes (solid state/submerged stated) and inoculation methods (mono-/co-culture) on enzyme activities.
Sentiment Without Sentiment Analysis: Using The Recommendation Outcome Of Steam Game Reviews As Sentiment Predictor, Anqi Zhang
Electronic Theses and Dissertations
This paper presents and explores a novel way to determine the sentiment of a Steam game review based on the predicted recommendation of the review, testing different regression models on a combination of Term Frequency-Inverse Document Frequency (TF-IDF) and Latent Dirichlet Allocation (LDA) features. A dataset of Steam game reviews extracted from the Programming games genre consisting of 21 games along with other significant features such as the number of helpful likes on the recommendation, number of hours played, and others. Based on the features, they are grouped into three datasets: 1) either having keyword features only, 2) keyword features …
Project-Based Learning In Non-Traditional Settings In Engineering Education, Mary Foss
Project-Based Learning In Non-Traditional Settings In Engineering Education, Mary Foss
Electronic Theses and Dissertations
The purpose of this study is to examine the effectiveness of utilizing the principles of Project-based learning (PJBL) in nontraditional settings in engineering education. There is ample literature related to the usage of PJBL techniques in engineering education but there are also challenges with incorporating PJBL within the curriculum. It is the aim of this dissertation to build upon this understanding of the advantages and limitations of PJBL in engineering education and identify areas within the existing body of knowledge in which more research is needed. This dissertation divides this topic into 4 sub-topics. The first sub-topic explores how PJBL …
Economic Analysis Of Sunflower (Helianthus Annuus) Spacing In East Texas, Carly Wright
Economic Analysis Of Sunflower (Helianthus Annuus) Spacing In East Texas, Carly Wright
Electronic Theses and Dissertations
Two experiments were conducted on spacing of Helianthus annuus in East Texas to determine the spacing treatment that produces the greatest revenue per m2. The experiments had four spacing treatments of 8 × 15 cm, 15 × 15 cm, 23 × 23 cm, and 30 × 30 cm. Three different cultivars were used in each experiment to determine if there was an interaction between spacing and cultivars. In both experiments, the stem height, stem diameter, flower diameter, and disk diameter increased as spacing increased. Also, as spacing increased, the days-to-harvest decreased. The 8 × 15 cm spacing produced …
Improving Three-Dimensional Instructional Practices Via Professional Development, Alethea Henry
Improving Three-Dimensional Instructional Practices Via Professional Development, Alethea Henry
Electronic Theses and Dissertations
The purpose of this applied research study was to improve the use of three-dimensional pedagogy in science classes in chronically low-performing schools. The need to build teacher capacity became evident after the state adopted more rigorous science standards revealing deficits in teachers’ pedagogical content knowledge. This study utilized two elements, three-dimensional professional development and the science cadre, to build teacher capacity as well as foster collaboration and create buy-in throughout the district among science leaders. Data collected and analyzed from classroom observations, student surveys, and teacher interviews revealed improved usage of three-dimensional instruction and increased buy-in throughout the district to …
Transdiagnostic Processes Of Generalized Anxiety Disorder: An Experimental Investigation Evaluating The Role Of Emotion Regulation In Uncertain Contexts, Mary J. Schadegg
Transdiagnostic Processes Of Generalized Anxiety Disorder: An Experimental Investigation Evaluating The Role Of Emotion Regulation In Uncertain Contexts, Mary J. Schadegg
Electronic Theses and Dissertations
Generalized anxiety disorder (GAD) is a complex disorder characterized by pervasive and uncontrollable worry. Numerous researchers have established theoretical models to explain the cognitive, emotional, and contextual processes that develop and maintain GAD. From these theories, intolerance of uncertainty (IU) and emotion regulation (ER) have emerged as two transdiagnostic processes that play key roles in this disorder. Extensive research has examined each of these processes individually; however, only four studies to date have specifically examined the association between IU and ER, and none of these studies have looked at the interconnection of these processes in GAD. The current study used …
Supports For College Students With Autism Spectrum Disorder: Views Of Postsecondary Practitioners And Faculty Regarding Autism Spectrum Disorder Student Service Provision, Susan Byrd Jenkins
Supports For College Students With Autism Spectrum Disorder: Views Of Postsecondary Practitioners And Faculty Regarding Autism Spectrum Disorder Student Service Provision, Susan Byrd Jenkins
Electronic Theses and Dissertations
Individuals with Autism Spectrum Disorder (ASD) are matriculating to higher education at growing rates and are now believed to make up roughly one to two percent of the postsecondary student population (Cox & South, 2017; Centers for Disease Control and Prevention, as cited in Gobbo & Shmulsky, 2013). Service provision for college students with ASD typically falls under the oversight of student disability services practitioners who provide guidance to faculty and staff regarding accommodations. The professionals who carry out ASD service delivery are a source of expertise, insight and understanding regarding recommended supports for students on the spectrum. This study …
The Ability Of Positive And Negative Liberty, Alexandra Jo Kotter
The Ability Of Positive And Negative Liberty, Alexandra Jo Kotter
Electronic Theses and Dissertations
The way in which we recognize, define, and promote freedom in our society can be deeply valuable. It can lead to important political answers and help identify rights and their nature. My intention is to consider the relationships among three conceptions of freedom. I believe that discussions of freedom which are relevant to political philosophy are necessarily normative. By this I mean that I am not discussing purely descriptive concepts of freedom- instead I am speaking of freedom which can be considered desirable, for this is what truly matters. Freedom to murder, for example, is freedom in the descriptive sense …
Halogen Bond Driven Supramolecular Materials, Dilan Chinthaka Karunathilaka
Halogen Bond Driven Supramolecular Materials, Dilan Chinthaka Karunathilaka
Electronic Theses and Dissertations
Halogen bonding (XBing) is a type of non-covalent interaction between covalently bound halogen atoms (XB donor), and Lewis bases (XB acceptor). In recent years, it has become a remarkable and adaptable tool to produce interesting molecular architectures and functionalities in organic-based materials. Such applications include liquid crystals, nonlinear optics, photovoltaics, and multicolor displays in the solid phase. Due to this variety of applications, XBing has become an exciting area of study in supramolecular chemistry. Herein are presented synthetic routes and characterization of self-assembling XBing molecules and their resulting materials. First, four different heterocyclic oligomers containing pyrazine, thiophene, and furan have …
Building Cultural Competence In Schools Through Teacher Capacity, Latonya R. Robinson
Building Cultural Competence In Schools Through Teacher Capacity, Latonya R. Robinson
Electronic Theses and Dissertations
The purpose of this study was to understand the dynamics of how teaching culturally responsive strategies to teachers can help eliminate the opportunity gap between students of color and their White counterparts. The action research method involved first collecting quantitative data through several surveys and then explaining the quantitative results with in- depth qualitative data through interviews and professional learning communities. In the first phase of the study, the culturally responsive and teacher efficacy scale data was collected from the participants within the study and the district at large. While the district survey was not mandated, it was strongly encouraged. …
Metaphors In Language Learning And Teaching: Discovering The Underlying Factors Affecting Demotivation In Anglophone Learners Of Modern Foreign Languages, Holly Sallah
Electronic Theses and Dissertations
In response to increased levels of demotivation in anglophone students of modern foreignlanguages, this thesis attempted to discover potential underlying causes through the use of metaphor elicitation directed at tertiary learners in the United States of America. Students were asked to metaphorize both the language learning process and the role of the language teacher. Afterwards, a qualitative metaphor analysis revealed that participants were overwhelmingly positive in respect to the role of the language teacher, but more mixed in their metaphors regarding the language learning process, with high frequency words such as “work†and “skillâ€. Contrary to the literature, the role …
The Perceptions Of Black Law Students Regarding The Barriers Of Access To Public Law Schools Located In The South, Joshua Quinn Tucker
The Perceptions Of Black Law Students Regarding The Barriers Of Access To Public Law Schools Located In The South, Joshua Quinn Tucker
Electronic Theses and Dissertations
This qualitative study applies the conceptual framework of Positive Deviance and the theoretical framework of Critical Race Theory to understand the problem of low Black student enrollment at four public law schools in the South. Positive Deviance is based on the observation that in every community there are certain individuals or groups whose uncommon behaviors and strategies enable them to find solutions to problems than their peers without fully understanding how, while having access to the same resources and facing similar or worse challenges. Critical Race Theory analyzes the role of race and racism in perpetuating social disparities between dominant …
Implications Of Gender Dysphoria On Gender Schema And Social Cognitive Theories Of Gender Development, Beau Bourgeois
Implications Of Gender Dysphoria On Gender Schema And Social Cognitive Theories Of Gender Development, Beau Bourgeois
Electronic Theses and Dissertations
This project considers the implications of gender dysphoria under two prominent theories of gender development, gender schema theory (GST) and social cognitive theory (SCT). Gender dysphoria is considered a significant motivator for transgender behavior and is presented in the DSM-5 as the experience of a strong desire, or as primarily affective in nature. GST and SCT differ in a number of ways, most notably in the role affect plays for gender development and behavior motivations. The former places primary emphasis on environmental influences, leaving the role of affect in question, while the latter posits gender behavior and motivation as an …
Synthetic Studies On Valuable Fluorinated Building Blocks, Maali Alshammari
Synthetic Studies On Valuable Fluorinated Building Blocks, Maali Alshammari
Electronic Theses and Dissertations
Fluorine chemistry plays a diverse role in the pharmaceutical, agricultural, and material industries. In fact, around 25% of pharmaceuticals and 40% of agrochemicals contain at least one fluorine atom. The incorporation of fluorine into pharmaceuticals or natural products can increase bioavailability by enhancing lipophilicity, metabolic stability, and overall pharmacokinetics properties. Our laboratory has designed a method to generate difluoroenolates from pentafluoro-gem-diols. This reactivity can be used to produce molecules displaying a difluoromethyl group. The reaction occurs through the release of trifluoroacetate. We improved the design and synthesis of fluorinated derivatives of flavones and measured their antioxidants activities. This work expanded …
Auditors Are Known By The Companies That Keep Them: The Effect Of Media Sensationalism And Audit Firm Responses On Auditor Ratification, Latoya Flint
Electronic Theses and Dissertations
This study examines media influence on auditor relationships with client shareholders. Audit firms are concerned about client loss due to reputational damage. Sensationalized media reports of corporate accounting frauds can be misleading in their description of the auditor’s responsibility for fraud detection. Although audit firms do not control media sensationalism, they can respond to it. I conduct an experiment to examine the impact of media sensationalism and audit firm responses on shareholders’ likelihood to support auditor ratification. I predict and find that high media sensationalism leads shareholders to perceive a higher level of audit firm control over adverse fraud outcomes. …
The Epistemic Obligations Of The Ideal Citizen: A Neo-Aristotelian Solution For Truth-Decay In Democratic Societies, Dakota Shane Layton
The Epistemic Obligations Of The Ideal Citizen: A Neo-Aristotelian Solution For Truth-Decay In Democratic Societies, Dakota Shane Layton
Electronic Theses and Dissertations
Contemporary democratic societies are currently encumbered by the problem of truth-decay. Truth-decay is defined as the following set of interrelated trends:
Speech Fluency Changes Following Deep Brain Stimulation Of The Subthalamic Nucleus In Parkinson’S Disease: A Meta-Analysis, Emily Morphis
Speech Fluency Changes Following Deep Brain Stimulation Of The Subthalamic Nucleus In Parkinson’S Disease: A Meta-Analysis, Emily Morphis
Electronic Theses and Dissertations
Purpose: Speech fluency changes following deep brain stimulation are one aspect that is crucial to consider when exploring treatments for Parkinson’s disease. Deep brain stimulation, specifically of the subthalamic nucleus, has been linked to a decrease in speech fluency despite improved bodily motor control. This acquired dysfluency is referred to as “neurogenic stuttering.” The purpose of the current study is to determine the incidence and severity of speech fluency decline following deep brain stimulation in patients with Parkinson’s disease. A meta-analysis was conducted with 7 studies (239 subjects) that recorded changes in speech fluency. All studies used a quantitative assessment, …
Effects Of Working Memory And Fatigue On Decision-Making In People With Traumatic Brain Injury, Dennis John Tirri
Effects Of Working Memory And Fatigue On Decision-Making In People With Traumatic Brain Injury, Dennis John Tirri
Electronic Theses and Dissertations
Worldwide, traumatic brain injuries (TBIs) are the leading cause of injury related death and disability for children and young adults, with an estimated 50 million TBIs occurring annually. Post-traumatic cognitive fatigue, or the perceived lack of mental energy needed to accomplish a goal, is a debilitating symptom of TBI, preventing many survivors from returning to work or enjoying their pre-injury quality of life. The mechanisms underlying TBI often cause executive function deficits, such as compromised ability to make adaptive decisions. Although decision-making and fatigue share portions of the same neural network, no literature to date has examined the potential mediating …
The Impact Of The Good Behavior Game On Adolescent Student Behavior In Restrictive And Inclusive Learning Environments, Allison Nicole Oliver
The Impact Of The Good Behavior Game On Adolescent Student Behavior In Restrictive And Inclusive Learning Environments, Allison Nicole Oliver
Electronic Theses and Dissertations
This dissertation consists of three articles investigating the effects of the Good Behavior Game to increase academic engagement and decrease disruptive behaviors in students who have behavior disorders. Previous literature examined the effects of the Good Behavior Game on student populations in elementary and mainstream settings. Unfortunately, there is a lack of investigation with use of the Good Behavior Game in secondary settings with students with disabilities, especially behavioral disorders. Collectively, these three articles will determine the impact of the Good Behavior Game in secondary settings with students with behavior disorders in mainstream, inclusive and restrictive learning environments. This dissertation …
Face Detection Using Web Images, Chris Zhao
Face Detection Using Web Images, Chris Zhao
Electronic Theses and Dissertations
The current facial recognition algorithms struggle with accuracy on real world cases. Haar cascade based algorithms are fast, but require fine tuning per image in order to achieve the best results. When tasked with images where there are multiple faces at different locations, the current algorithms seem to underreport the number of faces. This study attempts to produce a more accurate classifier through the use of taking the maximum result of multiple Haar cascade classifiers with differing parameters. To do this, a web image scraper was written to gather real world images from Google images and Flickr. These images were …
Understanding Classroom Engagement For Middle School Students, Jason W. Wood
Understanding Classroom Engagement For Middle School Students, Jason W. Wood
Electronic Theses and Dissertations
The purpose of this study is to understand the dynamics of student engagement and motivation in middle school students. The action research method involves collecting quantitative data through a student survey first and then explaining the quantitative results with in-depth qualitative data through interviews and focus groups. In the first, quantitative phase of the study, the motivation and engagement scale data will be collected from middle school students in the fifth through eighth grade of Regents School of Oxford to test the motivation and engagement of these students to assess whether intrinsic motivations relate to classroom student engagement. The second …
Teacher Perceptions Of Practices Which Impact Job Satisfaction And Retention, Chiqueta Daniels
Teacher Perceptions Of Practices Which Impact Job Satisfaction And Retention, Chiqueta Daniels
Electronic Theses and Dissertations
Identifying teachers’ reasons for leaving the field of education and monitoring retention indicators to address and remedy the problem is critical for school leaders and policymakers in recruiting and retaining high-quality educators. Understanding teachers’ experiences and opinions can facilitate practices and protocols to increase retention. The study aimed to investigate perceptions of successful and departing teachers on school leadership practices, which impact teacher retention in rural public schools in Mississippi. By conducting a research study on teachers’ lived experiences, school leaders can explore options and construct recruitment, mentoring, and collaboration practices to encourage retention, which gives teachers a sense of …
The Impact Of Blended Classroom Pedagogy On Student Gpa In A Community College Stem Course, Sarah Mattox Holt
The Impact Of Blended Classroom Pedagogy On Student Gpa In A Community College Stem Course, Sarah Mattox Holt
Electronic Theses and Dissertations
America is facing a shortage of STEM workers and colleges must meet the demand by educating qualified graduates. However, attrition rates are high in STEM classes, particularly in minority groups. Blended learning has increased in popularity in higher education over recent years and has the potential to improve current teaching practices. Yet, limited research centers on the success of blended learning implemented in a community college STEM course. This quantitative research study (N=1264) was designed to evaluate student success in the blended learning environment versus traditional environment in an introductory community college biology course for science majors. The study indicated …
Enhancing The Oral Drug Delivery Through Hot Melt Extrusion Techniques, Neeraja Komanduri
Enhancing The Oral Drug Delivery Through Hot Melt Extrusion Techniques, Neeraja Komanduri
Electronic Theses and Dissertations
Hot melt extrusion has been developed as a fresh technique for taste masking, in recent years. This method provides many aids as compared to traditional methods like avoiding the use of solvents, continuous manufacturing, ease to scale up, and adaptability to meet the goals of FDA for quality products. This method is useful for various applications like solubility enhancement, abuse deterrence, taste masking, transdermal dosage forms like films, immediate release oral dosage forms. In this work, This technique is explored for its applications using a novel polymer, Kollicoat® Smartseal 100P and its ability to be coupled with FDM 3D printing …
Using Adaptive-Choice Based Conjoint Analysis To Explore Attributes Important In Performance For Division 1 College Football Players, Michaela Marie Slatniske
Using Adaptive-Choice Based Conjoint Analysis To Explore Attributes Important In Performance For Division 1 College Football Players, Michaela Marie Slatniske
Electronic Theses and Dissertations
Interdisciplinary teams are essential in the care of collegiate athletes. However, interdisciplinary teams may be composed of members who place utility in key athletic attributes differently. To better understand the differences in utilities various members place on athletic attributes, this study explored the relative importance of attributes in wide receivers (WR), and part-worth utilizes among levels of an attribute through an Adaptive Choice Based Conjoint (ACBC) study. Interdisciplinary team member involved in the care of college football players, including athletic trainers (ATs), ball coaches (BCs), strength and conditioning coaches (S&C), and sports dietitians (SN) were identified from 131 D1 collegiate …
Exploring Non-Covalent Interactions With Quantum Chemical Tools, Morgan Perkins
Exploring Non-Covalent Interactions With Quantum Chemical Tools, Morgan Perkins
Electronic Theses and Dissertations
Computational quantum chemistry is an excellent tool for probing properties of all types of chemical systems that are not easily accessible via experimental work. In particular, computational chemistry can be used to develop a better understanding of non-covalent interactions, which are important to a variety of chemical and biological processes. This work focuses primarily on complexes held together by hydrogen and halogen bonding, investigating their relationship to each other and, in a few projects, providing data that can be used for experimental identification of the different configurations. Additionally, comparisons are made between complexes containing first-row elements (e.g. fluorine) and their …