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Articles 187441 - 187470 of 193103
Full-Text Articles in Entire DC Network
Nailed It: Creative Nonfiction Essays, Kristi M. Dao
Nailed It: Creative Nonfiction Essays, Kristi M. Dao
Graduate Thesis and Dissertation 2023-2024
Nailed It is a collection of personal essays that follow the life of the narrator as an unlovable outsider raised by parents who are Vietnam War refugees. This collection is made up of seven essays, each focusing on the relationships that have shaped the speaker's identity and ideas about how love works. “Lost in Translation” opens the collection and explores the narrator's attempts to make sense of parental relationships defined by communication errors. The next several essays consider the father and mother as both parents and business owners, as well as relationships with people beyond the immediate household and family. …
Foreign Language Writing Anxiety: Lived Experiences Of International Graduate Students, Padideh Fattahi Marnani
Foreign Language Writing Anxiety: Lived Experiences Of International Graduate Students, Padideh Fattahi Marnani
Graduate Thesis and Dissertation post-2024
This qualitative transcendental phenomenological study investigates the lived experiences of international graduate students dealing with Second Language Writing Anxiety (SLWA), utilizing Moustakas’ transcendental phenomenological approach for data analysis. The study is framed by Horwitz’s theory of Foreign Language Anxiety (FLA) and draws on data from seven participants from diverse linguistic and cultural backgrounds. Data collection methods included interviews, researcher’s memos, and writing samples. The findings reveal several causes of SLWA, including the experience of being judged, low self-confidence, avoidance and procrastination, limited technical vocabulary and ability to elaborate on ideas, and lack of proper grammar. The consequences of SLWA include …
In Vitro Metabolite Identification Of Indole 3-Ylcycloalkyl Ketones, Inez M. Jacobs-Hinton
In Vitro Metabolite Identification Of Indole 3-Ylcycloalkyl Ketones, Inez M. Jacobs-Hinton
Graduate Thesis and Dissertation post-2024
Synthetic cannabinoids (SCs) have emerged as a complex and evolving class of compounds designed to mimic the effects of natural cannabinoids, targeting the endocannabinoid system. Despite their widespread recreational use and therapeutic potential, the safety and pharmacokinetic properties of synthetic cannabinoids remain inadequately understood. This study examines the in vitro drug metabolism of a prominent class of SCs—indole-3-ylcycloalkyl ketones—by identifying and characterizing their metabolites. Human liver microsomes were used to investigate the metabolism of several SCs, including (2,2,3,3-tetramethylcyclopropyl)[1-(4,4,4-trifluorobutyl)-1H-indol-3-yl]-methanone (XLR-12), 1-[2-(4-morpholinyl)ethyl]-1H-indol-3-yl-methanone (A-796260), 1-[(1-methyl-2-piperidinyl)methyl]-1H-indol-3-yl-methanone (AB-005), 1-(5-fluoropentyl)-1H-indazol-3-yl-methanone (FAB-144), and 1-[(tetrahydro-2H-pyran-4-yl)methyl]-1H-indol-3-yl-methanone (A-834735). Several time points were chosen to assist in elucidating the dynamics of …
Dna Nanotechnology: The Development Of Multi-Functional Hybridization Sensors, Brittany L. Mueller
Dna Nanotechnology: The Development Of Multi-Functional Hybridization Sensors, Brittany L. Mueller
Graduate Thesis and Dissertation post-2024
Hybridization probes have been used to detect specific nucleic acids for the last 50 years. These probes have medical applications, including identifying disease-causing genes or multi-drug resistant bacteria. To be considered robust, a probe should have high selectivity at ambient or low temperatures, be able to detect folded analytes, and remain economical for use in clinical settings. This work will uncover a challenge faced by molecular beacon probes (MBP), describe an adaptation to MBPs that enables the hybridization of the probe to a folded target, a multicomponent DNA sensor (OWL2) that overcomes common challenges faced by hybridization probes, and a …
A Quantitative Approach To The Analysis Of Human Hair For Forensic Examinations, David S. Hernandez Funes
A Quantitative Approach To The Analysis Of Human Hair For Forensic Examinations, David S. Hernandez Funes
Graduate Thesis and Dissertation post-2024
Hair is frequent trace evidence found in crime scenes due to its high transfer potential due to natural shed. They can provide investigative information in various cases, including homicide, sexual assault, missing persons, and human trafficking. Physical examination of hair involves the analysis of microscopic features, such as color and pigmentation, commonly using bright field microscopy. Microscopical techniques are non-destructive, with minimum to no sample preparation that can be followed by chemical and biological analysis. Although individualization is not possible via microscopical methods, it can be used to include or exclude potential donors. However, previous microscopical techniques lack quantitative and …
Molybdenum- And Tungsten-Based Vapor-Phase Materials Growth: Enhancing Understanding And Diversity Of Processes And Precursors, Taylor M. Currie
Molybdenum- And Tungsten-Based Vapor-Phase Materials Growth: Enhancing Understanding And Diversity Of Processes And Precursors, Taylor M. Currie
Graduate Thesis and Dissertation post-2024
Molybdenum- and tungsten-based materials, such as pure metal, metal oxides, and metal nitrides, have been used extensively in electronics, catalysis, photovoltaics, and sensing applications. Vapor-phase growth techniques, including chemical vapor deposition (CVD) and atomic layer deposition (ALD), are commonly used to synthesize thin films of such Mo- and W-based materials. CVD and ALD growth of thin films are both highly dependent on process parameters including the properties of the precursors used, namely their volatility, thermal stability, and reactivity, which can dictate the mechanisms of growth and ultimate compositions of the resulting materials. Herein, we aim to better understand and diversify …
Developing Integrated Dna Molecular Circuits, Andrea C. Bardales Martinez
Developing Integrated Dna Molecular Circuits, Andrea C. Bardales Martinez
Graduate Thesis and Dissertation post-2024
Due to nucleic acid’s programmability, it is possible to realize DNA structures with computing functions, and thus a new generation of molecular computers is evolving to solve biological and medical problems. There is evidence that genetic heredity diseases and cancer can be the result of genetic heterogeneity, thus there is a need for diagnostics and therapeutic tools with multiplex and smart components to compute all the molecular drivers. DNA molecular computers mimics electronic computers by programming synthetic nucleic acids to perform similarly to central processing units. Considering how the evolution of integrated circuits made possible the revolution of silicon-based computers, …
Access To Functional Arylalkoxysilanes By Intermolecular C–H Silylation By Harnessing Silane Redistribution Control, Salina Som
Graduate Thesis and Dissertation post-2024
This thesis is comprised of two main themes: (i) harnessing the control of redistribution-prone hydroalkoxysilanes by utilizing well-defined preformed catalysts, and (ii) protocols for intermolecular C–H silylation of hydroalkoxysilanes and unactivated arenes to access function arylalkoxysilanes. The first portion of this thesis focuses on protocols for Rh-catalyzed intermolecular C–H silylation of unactivated arenes and heteroarenes with monoalkoxysilane, HSiMe2(OEt). The silylation is catalyzed by 0.5 mol % of [RhCl(Ph-BPE)]2, derived from [Rh(coe)2Cl]2 and (S,S)-Ph-BPE, in the presence of cyclohexene as a hydrogen scavenger at 100 °C, affording the desired arylethoxydimethylsialnes …
Examining Anti-Racist Attitudes In Maternity Care Workers, Angelina Aduke Toluhi
Examining Anti-Racist Attitudes In Maternity Care Workers, Angelina Aduke Toluhi
All ETDs from UAB
Racism in maternity care has been identified as one of the major contributors to the persistent racial disparities in maternal health outcomes in the United States (US). Antiracism is a term used to describe the practice of actively identifying and opposing racism with the goal of changing policies, attitudes, behaviors, and beliefs that continue to foster racist ideas and actions. The results of this convergent mixed method research study reveal that racism and other forms of racial discrimination during maternity care may lead to adverse pregnancy outcomes in Non-Hispanic Black (NHB) pregnant patients in Southern US. In the first aim, …
Non-Catalytic Regulators Of The Secretory Pathway, Peyton Vanwinkle
Non-Catalytic Regulators Of The Secretory Pathway, Peyton Vanwinkle
All ETDs from UAB
This thesis focuses on two key questions: 1) how are bone development and regeneration regulated by the CREB3L1 transcription factor; and 2) what is the mechanism of action of the endoplasmic reticulum resident protein JAGN1, which when dysregulated, causes severe congenital neutropenia (SCN)? CREB3L1 regulates bone development and regeneration in mammalian models by facilitating the expression of COL1A1 and components of the secretory pathway required for collagen secretion. We generated two zebrafish models of Creb3l1 dysfunction (creb3l1ΔbZIP/ΔbZIP and creb3l1TA+/TA+). Both models showed that Creb3l1 functions in regulating col1a1a transcription and overall regenerate size are conserved in zebrafish. However, we also …
Screening For And Addressing Social Determinants Of Health In Hospitals Participating In Accountable Care Organizations, Heather Lee
All ETDs from UAB
There is a growing recognition among hospitals, payers, and policymakers in the United States that addressing social needs of patients is important to improving quality of care, patient outcomes, and lowering health care spending. Accountable care organizations (ACOs) may be especially incentivized to address social needs of patients to meet population health goals related to patient outcomes and costs. This cross-sectional study used data from the American Hospital Association Annual Survey to explore to explore how hospitals participating in or leading ACOs are screening for and addressing individual-level HRSNs of patients and to understand the extent to which ACOs are …
The Multifaceted Role Of Neutrophil Heterogeneity In Covid-19 Pathogenesis, Marcus Darrell Davis
The Multifaceted Role Of Neutrophil Heterogeneity In Covid-19 Pathogenesis, Marcus Darrell Davis
All ETDs from UAB
COVID-19 is a respiratory illness caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. The disease is characterized by an excessive inflammatory response and dysfunction of the immune system triggered by immunopathological mechanisms. Neutrophils are the most abundant circulating leukocytes, playing a critical role in the pathogenesis of multiple inflammatory conditions. Several studies have demonstrated that neutrophils are key contributors to COVID-19 disease pathogenesis; however, their role in disease progression remains unclear. Here, we demonstrate immune dysregulation in COVID-19 patients characterized by a significant expansion of neutrophil numbers and reduced frequency of T-cell populations. We identify an immature …
Knocking At The Door: The Life And Legacy Of Dr. James Montgomery, Haley Eloise Wells
Knocking At The Door: The Life And Legacy Of Dr. James Montgomery, Haley Eloise Wells
All ETDs from UAB
The life and work of Black Birmingham cardiologist, Dr. James T. Montgomery, demonstrates the importance of viewing the history of health activism and Birmingham civil rights history as two interconnected histories that influenced each other. Traditionally, secondary scholarship on the Birmingham civil rights movement and scholarship on the history of healthcare have been treated as two separate areas of study. Scholars such as Glenn Eskew and Diane McWhorter have written extensively on the civil rights movement in Birmingham, but their scholarship excludes any comprehensive discussion of the fight for racial justice within Birmingham’s medical field. Conversely, scholars such as Thomas …
Unmasking Molecular Mechanisms Of Multiple Maladies Through Multiomic Methodologies, Luke Potter
Unmasking Molecular Mechanisms Of Multiple Maladies Through Multiomic Methodologies, Luke Potter
All ETDs from UAB
Much modern biomedical research is invested in determining causative molecular mechanisms and identifying potential therapeutics within human disease or injury. Traditional experiments such as over-expressing or “knocking out” the level of a gene’s abundance can determine the specific contribution of a single gene to a pathology and are a vital component of scientific research. However, taking a big picture approach through the application of ‘omics technologies can lead to a broader overall understanding of a pathology and can potentially generate numerous specific hypotheses to be tested using the more traditional molecular approaches. In this dissertation, transcriptomic and epigenomic technologies, measuring …
Barbara Dane: The Forgotten Activist, Jacob Kennedy
Barbara Dane: The Forgotten Activist, Jacob Kennedy
All ETDs from UAB
Barbara Dane is best understood as an unsung hero of the New Left and Folk Revival because since her graduation from high school in 1945, she has used every resource at her disposal to support and grow various movements. She has picketed for the labor movement, canvassed for the Progressive party, traveled to Mississippi to perform for the civil rights movement and SNCC, marched for peace as part of the anti-war movement, and performed and advocated for the Feminist movement throughout her lifetime. Dane has traveled the globe from war-torn Prague in 1947, Cuba in 1966, and Northern Vietnam in …
Entity Information Extraction And Normalization From Scientific And Clinical Texts, Abdullateef Ibrahim Almudaifer
Entity Information Extraction And Normalization From Scientific And Clinical Texts, Abdullateef Ibrahim Almudaifer
All ETDs from UAB
In the analysis of scientific and clinical texts, the extraction of named entities and their relevant information, such as modifiers, play a pivotal role. Recent advancements in natural language processing (NLP), particularly through the application of transfer learning from pre-trained Transformer models, have greatly enhanced the performance of entity extraction tasks. However, challenges persist with nested entities. This thesis investigates the impact of transfer learning on extracting nested entities and their modifiers, using Opioid Use Disorder (OUD) as a prototype. By adopting a multi-task training strategy, this work enhances the model's capacity to discern and categorize overlapping entities, a task …
Associations Of Religious Involvement And Cultural Justifications With Depressive Symptoms And Burden Among Caregivers, Maizonne Fields
Associations Of Religious Involvement And Cultural Justifications With Depressive Symptoms And Burden Among Caregivers, Maizonne Fields
All ETDs from UAB
With the advancement of medicine, life expectancy has increased globally. As a result, the need for a caregiver by an older adult has also risen. A caregiver is often a spouse, child, or friend of an older adult that assists an older adult that is experiencing changes in their ability to complete activities of daily living and/or instrumental activities of daily living. Caregivers are often unpaid for their assistance and can be at heightened risk for negative mental health outcomes. This study used the Stress Process Model to investigate the associations of high levels of religious commitment or involvement (RCI) …
Physical And Optical Properties Of Material Used For Injection Molding, Nadia Christine Farias Machado
Physical And Optical Properties Of Material Used For Injection Molding, Nadia Christine Farias Machado
All ETDs from UAB
Background: This project investigates the materials used in injection molding dental resin composites which involves injecting flowable composite into a clear mold. Understanding the physical and optical properties of both the resin composite and the clear mold material is crucial for successful clinical outcomes. For the clear mold material, its translucency, curing light transmission, and rigidity are vital factors. Correlations may be present between trans-lucency and curing light transmission. For the resin composite, comparing wear, hardness, translucency, radiopacity, shrinkage stress, flexural strength, and modulus will affect mate-rial performance. Finally, the depth of cure of the material will be dependent on …
Living With The Tides: The Sundarbans, Laila Nahar, Special Collections, Fleet Library
Living With The Tides: The Sundarbans, Laila Nahar, Special Collections, Fleet Library
Artists' Books
1 volume (unpaged) : color illustrations. Edition of 15 handbound copies. Title from cover. Publication date and edition statement from artist's website. Photographs, editing, sequencing: Laila Nahar ; Book concept and design: Laila Nahar ; Texts: Laila Nahar. Hardcover with a tipped in photograph and cloth spine. Eight Leoporello panels with individual hardcover and tipped in photographs. Translucent vellum as endsheet, Canon Mi-Teintes paper as accordions. Archival pigment printing. "Living With The Tides' is a project with the photographs from the Sundarbans. I had always been viscerally influenced by the Sundarbans, its mysteries and splendors. It is the world's largest …
Does Plastic Pollution Knowledge Play A Role In Recycling Rates, Natasha Whipple
Does Plastic Pollution Knowledge Play A Role In Recycling Rates, Natasha Whipple
Honors Theses - Providence Campus
Plastic pollution is a serious problem causing the planet to face irreversible damage. The oceans and air quality are changing for the worse. A substantial amount of research has been conducted on plastic pollution and its effects through the use of scientific studies; however, very little research has been conducted on the impacts of regional knowledge of plastic pollution. In this thesis, a study was conducted that contributed to understanding the relationship between knowledge about plastic pollution and people's recycling habits. This was determined through an online survey using participants from New Hampshire and Rhode Island. The data collected from …
Elucidating The Effects Of Cations And Electrode Wettability On Electrocatalysis, Kaige Shi
Elucidating The Effects Of Cations And Electrode Wettability On Electrocatalysis, Kaige Shi
Graduate Thesis and Dissertation post-2024
Electrocatalysis plays a key role in the development of energy conversion technologies including fuel cells and electrolyzers, enabling a sustainable production of chemicals and fuels when powered by renewable electricity. Beyond the electrocatalytic materials, the local environment around catalytic sites, including liquid electrolyte and gaseous reactant/product, has a significant impact on gas-involving reactions such as CO2 reduction and hydrogen evolution. This dissertation focuses on understanding the effects of electrolyte cations and electrode wettability on the reaction kinetics and bubble dynamics of electrocatalytic reactions. First, I studied the effect of non-metal cations including ammonium and alkylammonium on CO2 reduction …
Advancements In Nuclear Magnetic Resonance, Electron Paramagnetic Resonance, Multipole Moments, And Lie Group Proprieties, Zhichen Liu
Graduate Thesis and Dissertation 2023-2024
To accurately solve the general nuclear spin state function in Nuclear Magnetic Resonance (NMR), a rotation wave approach was employed, allowing the reference frame to rotate in sync with the oscillating magnetic field. The spin state system was analogously treated as a Rubik's Cube, ensuring the diagonalization of only the time-dependent part of the state function. Although Gottfried's equation (1966) aligns with transitions between specific spin states m and m′, his second rotation contradicts the conservation of angular momentum, resulting in inaccuracies for spin states with initial phase shifts or entangled states. Contrarily, Schwinger (1937) efficiently computed the coefficients for …
Mathematical Developments For Bubble Dynamics, Kacie Kulenguski
Mathematical Developments For Bubble Dynamics, Kacie Kulenguski
Graduate Thesis and Dissertation post-2024
This thesis explores bubble dynamics described by the Rayleigh-Plesset equation. The primary focus is on bubble growth. A theoretical discussion of bubble growth is given using the Rayleigh-Plesset equation. This work considers bubble growth in four different cases: a polytropic case without the consideration of surface tension, an isothermal case without surface tension, a polytropic case with surface tension, and an isothermal case with surface tension. Based on these cases, this work develops asymptotic solutions for the evolution of radial bubble growth over time. This thesis provides numerical solutions to these cases through the use of the Runge-Kutta method. These …
Assessment Of Caretaker Resources And Motivation In The Wean-To-Market Phase Of Swine Production, Joshua W. Holtkamp
Assessment Of Caretaker Resources And Motivation In The Wean-To-Market Phase Of Swine Production, Joshua W. Holtkamp
Graduate Thesis and Dissertation 2023-2024
This study is a novel application of I/O Psychology principles to the U.S. swine industry. The Swine Health Information Center (SHIC) recently identified caretaker motivation related to compliance with biosecurity behaviors as a priority needing to be better understood. This exploratory study seeks to identify if there is indeed a worker motivation issue within the industry that is impacting compliance with biosecurity, and if so, establish both a baseline of motivation and a better understanding of the primary influencing factors. Using the Theory of Planned Behavior and the Job Demands/Resources Model of Burnout as a framework, an online survey was …
Development And Validation Of The Nicotine Vaping Expectancy Questionnaire: Item Generation, Scale Construction, Reliability And Validity, Gabrielle Lynch
Development And Validation Of The Nicotine Vaping Expectancy Questionnaire: Item Generation, Scale Construction, Reliability And Validity, Gabrielle Lynch
Graduate Thesis and Dissertation 2023-2024
Over the past two decades, cigarette smoking has decreased among teenagers and young adults, but nicotine vaping has increased dramatically. Liquid vape products contain harmful chemicals ingested when vapor is inhaled, and vaping is associated with lung damage and chronic obstructive pulmonary disease. There has been relatively little research on nicotine vaping and effective prevention and intervention methods have yet to be developed. Changing expectancy processes has been successful in preventing early alcohol use and cigarette smoking, but little is known about nicotine vaping expectancies. An appropriately developed nicotine vaping expectancy measure is necessary to better understand vaping behavior and …
The Effect Of Perceived Discrimination On Alcohol Use Behaviors: An Ecological Momentary Assessment Study Among Hispanic/Latinx Drinkers, Ardhys N. De Leon
The Effect Of Perceived Discrimination On Alcohol Use Behaviors: An Ecological Momentary Assessment Study Among Hispanic/Latinx Drinkers, Ardhys N. De Leon
Graduate Thesis and Dissertation post-2024
Hispanic/Latinx drinkers are more likely to experience adverse alcohol-related consequences and have less access to treatment services. Research indicates that discrimination has a unique effect on drinking behaviors. The Minority Stress Model depicts how discrimination places individuals at a heightened risk for adverse health outcomes. Emotion regulation and alcohol craving are also known to impact alcohol use. This study investigated the impact of perceived discrimination on emotional disturbance, alcohol craving, and alcohol use using Ecological Momentary Assessment (EMA). The following were proposed: H1: Emotional disturbance will predict alcohol craving in the moment (Level 1). H2: The association between perceived discrimination …
Is My Team As Passionate As Me? Effects Of Perceived Dissimilarity Of Occupational Passion-Intensity On Key Outcomes Among Working Adults, Moses Rivera
Graduate Thesis and Dissertation post-2024
This dissertation explores the impact of perceived self-to-team dissimilarity in occupational passion-intensity on individual-level outcomes among workgroup members in organizational contexts. Grounded in need-to-belong theory, moralization theory, and equity theory, the outcomes examined include job satisfaction, turnover intentions, involvement in task-conflict, and psychological safety. Additionally, results via three methods for measuring self-to-team similarity and/or dissimilarity were compared. Two self-report online questionnaires separated by one week were administered to 530 adult workers from the US, Canada, and the UK, across a wide variety of industries. Based on a final sample of N = 483, structural equation models—each corresponding to one method …
Two Studies Examining The Effects Of Cash Rewards And Non-Cash Rewards On Employee Perceptions And Motivation, Aaron Mccullough
Two Studies Examining The Effects Of Cash Rewards And Non-Cash Rewards On Employee Perceptions And Motivation, Aaron Mccullough
Graduate Thesis and Dissertation post-2024
An important component of the total compensation that employees receive is employee rewards. Informing companies on how to best utilize their limited resources to reward and motivate their employees is a critical aspect of management accounting research. In Study 1, I examine employee perceptions and usage of various types of non-cash rewards vis-à-vis cash rewards. Using survey methods, I find employees self-report cash rewards as more motivating than all other types of non-cash rewards. I find employees report no greater likelihood of spending cash rewards or gift card rewards on hedonic purchases; however, when spending any type of reward on …
Economic, Environmental, And Social Characteristics Of E-Scooters On Lsu Campus, Mostafa Elseifi, Md Afif Rahman Chowdhury
Economic, Environmental, And Social Characteristics Of E-Scooters On Lsu Campus, Mostafa Elseifi, Md Afif Rahman Chowdhury
Publications
This study provides a comprehensive evaluation of e-scooter technology, with a focus on its environmental, economic, and social impacts, particularly within university settings at the Louisiana State University (LSU) campus. A life-cycle assessment (LCA) was conducted to assess the environmental sustainability of e-scooters, encompassing all stages from raw materials acquisition to end-of-life. The analysis determined that the total CO2 emissions for an e-scooter over a five-year lifespan were approximately 389 kg, with significant reductions possible by improving the lifespan of e-scooters, integrating recycled materials, and utilizing renewable energy sources for charging batteries. The study also compared the environmental and …
Vehicle Classification Technologies For Toll Collection, Samir Ahmed
Vehicle Classification Technologies For Toll Collection, Samir Ahmed
Publications
Toll facilities (roads, bridges, and tunnels) are intended for revenue generation to pay off the long-term debt issued to finance construction, capacity expansion, operations, and maintenance of these facilities. Tolls are one form of a broad concept known as road pricing. In addition to revenue generation, road pricing is used for other reasons including transportation demand management to reduce peak hour travel and the recurring traffic congestion on some corridors. The aim of this study is to provide the tolling industry with detailed analysis of the suitability of various non‐ pavement‐intrusive vehicle classification technologies (imaging using radar, Lidar, thermal profiling, …