Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (3808)
- Physical Sciences and Mathematics (2479)
- Social and Behavioral Sciences (2254)
- Engineering (1951)
- Medicine and Health Sciences (1948)
-
- Education (1401)
- Psychology (1168)
- Arts and Humanities (987)
- Biology (868)
- Chemistry (828)
- Biochemistry, Biophysics, and Structural Biology (662)
- Computer Sciences (427)
- Sociology (404)
- Biochemistry (380)
- Animal Sciences (368)
- Public Health (358)
- Biomedical Engineering and Bioengineering (353)
- Environmental Sciences (316)
- Electrical and Computer Engineering (303)
- Medical Sciences (300)
- Pharmacy and Pharmaceutical Sciences (273)
- Mechanical Engineering (272)
- Plant Sciences (263)
- Clinical Psychology (258)
- Civil and Environmental Engineering (256)
- Earth Sciences (247)
- Physiology (247)
- Ecology and Evolutionary Biology (234)
- Microbiology (232)
- Cell and Developmental Biology (224)
- Institution
-
- Virginia Commonwealth University (3244)
- University of North Dakota (2979)
- Brigham Young University (2820)
- Mississippi State University (2604)
- University of South Carolina (1840)
-
- Air Force Institute of Technology (922)
- Rowan University (757)
- University of Texas Rio Grande Valley (703)
- American University in Cairo (608)
- Illinois State University (570)
- Florida Institute of Technology (467)
- University of Arkansas Little Rock (449)
- Pepperdine University (402)
- City University of New York (CUNY) (374)
- St. John's University (327)
- Columbus State University (185)
- Nova Southeastern University (142)
- SASTRA Deemed to be University (99)
- Texas A&M International University (78)
- University for Business and Technology in Kosovo (54)
- UAlaska System (2)
- CentraCare Health (1)
- Louisiana Tech University (1)
- Southern Methodist University (1)
- Keyword
-
- Education (153)
- Cancer (150)
- Gender (134)
- Depression (119)
- Dissertations (PsyD) -- Psychology (109)
-
- Machine learning (109)
- North Dakota (104)
- Inflammation (85)
- Autism (81)
- Biological sciences (79)
- Mental health (78)
- Dissertations (EdD) -- Organizational leadership (77)
- Stress (76)
- Utah (74)
- Women (74)
- United States (71)
- Obesity (67)
- Nanoparticles (65)
- Trauma (63)
- Ecology (62)
- Anxiety (61)
- Leadership (61)
- Apoptosis (60)
- Adolescents (59)
- Mitochondria (57)
- Proteomics (56)
- Development (55)
- Behavior (54)
- Breast cancer (54)
- Machine Learning (54)
- Publication Year
- File Type
Articles 1561 - 1590 of 19629
Full-Text Articles in Entire DC Network
Time After Time: Deciphering Structural Violence And Vulnerability Using Postmortem Recovery Time Data And Demographics Throughout The Southeast Region Of The United States, Elise J. Adams
Theses and Dissertations
Over the last few decades, forensic anthropological research has made significant strides in developing better methods for decedent identification and increasing the accuracy of time since death/postmortem interval (PMI) estimations within medicolegal contexts. Until recently however, there has been little emphasis placed on how socioeconomic considerations might be connected, especially regarding recovery times for individuals from various demographic backgrounds. Using intersectional and biocultural frameworks and data collected from forensic anthropologists and medicolegal labs throughout the Southeastern US, this research aims to decipher the role that inequality, through instances of social vulnerability and structural violence, plays in recovery time data throughout …
Forest Management In Changing Landscapes: Evaluating Hurricane Damage And Salvage Market Dynamics, Ian Pereira Sartorio
Forest Management In Changing Landscapes: Evaluating Hurricane Damage And Salvage Market Dynamics, Ian Pereira Sartorio
Theses and Dissertations
This dissertation comprises three interrelated studies exploring the effects of hurricanes on forestlands and the optimization of salvage logging practices. The first study examines land cover changes and salvage logging patterns following Hurricane Michael. It utilizes predictive models to identify key drivers of these changes, exploring the relative influence of storm intensity, forest vulnerability, and economic/operational factors. The second study builds upon these findings, focusing on the agent attribution for land cover change observations leveraging advanced remote sensing tools and relevant spatial data. By distinguishing between wind damage and salvage logging activities, it advances the understanding of post-hurricane land cover …
Understanding The Relationship Between Neonatal Dairy Calves’ Gut Microbiota And Incidence Of Diarrhea Using Full-Length 16s Rrna Gene Amplicon Sequencing And Machine Learning, Jalyn Grace Hawkins
Understanding The Relationship Between Neonatal Dairy Calves’ Gut Microbiota And Incidence Of Diarrhea Using Full-Length 16s Rrna Gene Amplicon Sequencing And Machine Learning, Jalyn Grace Hawkins
Theses and Dissertations
A healthy gut microbiome is crucial for the development, growth, and health of dairy calves; however, diarrhea in pre-weaned calves is highly prevalent, difficult to treat, and causes detrimental effects to the dairy industry. This study characterized early gut microbiota using longread-based 16S rRNA gene sequencing and investigated its associations with calf diarrhea and colostrum microbiota. The full-length 16S rRNA gene was amplified and sequenced on a Nanopore sequencer. We identified shared bacterial species in colostrum and calf feces, whose abundance in calf feces reduced with age. Diarrheic calves exhibited differing gut diversity before, during, and after diarrhea, and harbored …
Movement Ecology And Nest-Site Selection Of Rock Iguanas Across A Gradient Of Anthropogenic Disturbance, James Walter Wehsener
Movement Ecology And Nest-Site Selection Of Rock Iguanas Across A Gradient Of Anthropogenic Disturbance, James Walter Wehsener
Theses and Dissertations
Analysis of animal movement has been integrated into a framework of four components: internal state, motion capacity, navigation capacity, and external factors (Nathan et al., 2008). We used this framework to enhance understanding of movement behavior in the 15 West Indian rock iguana (Cyclura) taxa and to inform conservation management. Our review found that adult female Cyclura large-scale movement is primarily driven by nesting and migrations. Nest site selection also influences hatchling dispersal, but few studies identify preferred habitats for nesting females. Anthropogenic impacts on nesting ecology are largely unexplored, especially in Cyclura carinata. We studied C. carinata nesting ecology …
Examining The Role Of Hypertension-Induced Mechanotransduction On Vascular Smooth Muscle Cells And Vascular Calcification, Jessica Moon
Examining The Role Of Hypertension-Induced Mechanotransduction On Vascular Smooth Muscle Cells And Vascular Calcification, Jessica Moon
Theses and Dissertations
Cardiovascular disease is the world’s number 1 killer. The cardiovascular system helps to pump blood throughout the human body and maintain a systemic balance. However, medial vascular calcification results when this system becomes off balance, such as in cases of high blood pressure leading to hypertension. Many factors are involved in this process, but the most important is the vascular smooth muscle cell phenotypic switch to osteoblast-like cells. When vascular smooth muscle cells are subject to mechanical stimuli, mechanotransduction occurs, causing an intracellular signaling cascade leading to a phenotypic switch associated with the Wnt signaling pathway and osteogenic markers. There …
Using Phenological And Physiological Data To Improve Bioenergy Feedstock Production Of Populus In The Southeastern United States, Jiaxin Wang
Theses and Dissertations
Climate change poses a significant threat to bioenergy production, impacting plant’s phenology and physiological performance. Investigating the adaptation of bioenergy crops like Populus is crucial for sustaining production. Populus, known for its genetic variation and ease of study, offers insights into tree responses to climate change. My research, part of the Advancing Populus Pathways in the Southeast (APPS) project, focuses on various Populus genotypes across multiple growing seasons, exploring phenology under different management strategies. Planting Populus across two sites, namely Monroe and Pontotoc, allows for the examination of genotype responses to climate change factors, particularly in terms of phenology and …
Attrition Rates In The Engineering Industry By Gender And Time, Josiane Kander
Attrition Rates In The Engineering Industry By Gender And Time, Josiane Kander
Theses and Dissertations
This dissertation investigated attrition rates of engineers in the industry. It used historical data to examine trends of attrition based on gender and time. It found that both gender and time were statistically significant in predicting whether an engineer would be working in the industry or not. Males with an engineering degree were 5.2 times more likely to work in the engineering industry than females with an engineering degree. Additionally, as engineers progress through the profession, they tend to leave it altogether more often than staying in the profession for their entire careers. Pivotal points where engineers leave the industry …
The Impact Of Stimulus Set Size On Efficiency Of Sight Words Training, Junchen Guo
The Impact Of Stimulus Set Size On Efficiency Of Sight Words Training, Junchen Guo
Theses and Dissertations
Reading skills are widely recognized as fundamental abilities, crucial not only for academic success but also for participation in social activities and navigating interpersonal challenges. In the early formation of reading abilities, mastery of sight words is instrumental in effectively enhancing reading proficiency, particularly for individuals lacking foundational reading skills. In educational practice, flashcard intervention stands as a widely utilized instructional approach. When Kodak et al. (2020) first introduced the concept of stimulus set size and its impact on the efficiency of skill acquisition interventions, they examined differences in training efficiency among children with autism spectrum disorder (ASD) when exposed …
Source Contributions To Nekton Diet In An Oligohaline Ecosystem, Keith Antoine Chenier
Source Contributions To Nekton Diet In An Oligohaline Ecosystem, Keith Antoine Chenier
Theses and Dissertations
West Back Bay in Biloxi, Mississippi is an oligohaline estuary. Salt-tolerant submerged aquatic vegetation (SAV) and saltmarsh grasses are found ubiquitously throughout this estuary with Vallisneria americana and Juncus roemerianus being the dominant SAV and saltmarsh vegetation. No studies have directly evaluated the role of these vegetation species in the food web. Carbon and sulfur stable isotope analyses were used to identify primary source contributions to fishes Menidia beryllina, Fundulus grandis, and Lepomis macrochirus. Isotopic niche overlap was compared between fishes and basal carbon sources bimonthly from May 2021 through May 2022. Fishes had greater than 50% isotopic niche overlap …
Characterizing Threats To Coastal Forests By A Native Defoliator And Non-Native Woodborer, Kristy Marie Mcandrew
Characterizing Threats To Coastal Forests By A Native Defoliator And Non-Native Woodborer, Kristy Marie Mcandrew
Theses and Dissertations
Coastal forests are facing threats due to rising sea levels, increased storm severity, and land use change. These factors stress trees within coastal ecosystems, potentially predisposing them to attack by insects. In North America, two insect species of concern that pose threats to for coastal forest health are the native baldcypress leafroller (BCLR), Archips goyerana Kruse (Lepidoptera: Tortricidae), and non-native Japanese cedar longhorned beetle (JCLB), Callidiellum rufipenne Motschulsky (Coleoptera: Cerambycidae). Baldcypress leafroller has been reported from Mississippi and Louisiana, with defoliation only reported from the latter where increased flooding has stressed host trees. Through widespread trapping efforts, I found that …
Evaluating Depictions Of Representation: An Analysis Of Female Law Enforcement Officers In Prime-Time Fictional Entertainment Television, Linda Christine Williams
Evaluating Depictions Of Representation: An Analysis Of Female Law Enforcement Officers In Prime-Time Fictional Entertainment Television, Linda Christine Williams
Theses and Dissertations
This study looked at uniformed female municipal police officers in fictional entertainment television shows that were centered around law enforcement. Building on previous research by Evans and Davies, this replication study uses a content analysis model to look at city level police, as opposed to the female federal agents from Booker’s 2018 study. This project builds on earlier work that looked at portrayals of female law enforcement officers in entertainment television and applies a framework of Representative Bureaucracy, Cultivation Theory, and Social Construction of Reality to find at their intersection, answers about the construction of the street-level bureaucrats who are …
Effects Of Acute Alcohol Treatment On Macrophage Polarization, Liyuan Liu
Effects Of Acute Alcohol Treatment On Macrophage Polarization, Liyuan Liu
Theses and Dissertations
Alcohol is an underestimated toxicant, and binge drinking is increasing rapidly. Macrophages are important immune cells characterized by heterogeneity and can be polarized into pro-inflammatory and anti-inflammatory phenotypes.To elucidate the effects of acute alcohol exposure on macrophage polarization and function, we established an optimized multi-parameter flow cytometry panel, assessed the impact of acute alcohol on macrophage polarization, developed macrophage polarization models, and proposed novel indices for a refined understanding of macrophage polarization status.First, we developed a flow cytometry panel quantifying eleven markers critical to macrophage polarization within the RAW 264.7 cell line. Inducing specific polarization states with IFN-γ ± LPS …
Evaluation Of Copper Sulfate Treatment To Preclude Hatching Of Trematode Eggs, With Notes On The Influence Of Temperature On Miracidial Development And Hatching Of Drepanocephalus Spathans., Logan R. S. Robison
Evaluation Of Copper Sulfate Treatment To Preclude Hatching Of Trematode Eggs, With Notes On The Influence Of Temperature On Miracidial Development And Hatching Of Drepanocephalus Spathans., Logan R. S. Robison
Theses and Dissertations
Catfish aquaculture remains the largest sector of the U.S. aquaculture industry, grossing ~$447 million in sales in 2022. Producers are plagued by annual losses associated with the trematode Bolbophorus damnificus. Management focuses on controlling the snail intermediate hosts using copper sulfate. Herein, the effects of copper on larval stages of the trematode Drepanocephalus spathans and Austrodiplostomum compactum eggs were investigated. Results indicate copper treatments currently used to control snails are ineffective at precluding hatching of trematode eggs. Higher doses prevented trematode eggs from hatching, although these levels are likely impractical in a commercial setting. A second study investigated the effects …
Evolution Of Functional Diversity In Defensive Bacterial Toxins And Parasite Infection Strategy, Logan D. Moore
Evolution Of Functional Diversity In Defensive Bacterial Toxins And Parasite Infection Strategy, Logan D. Moore
Theses and Dissertations
Insects and their natural enemies are engaged in a never-ending battle called the ‘co-evolutionary arms race.’ As a part of these contentious interactions, vulnerable insects evolve natural barriers that prevent successful attacks by their natural enemies. In response, natural enemies evolve strategies that overcome these barriers. Occasionally, microbial symbionts will also participate in these relationships by assisting their insect host in defense against natural enemies or by assisting the natural enemy in subduing its prey. Alternatively, microbial symbionts may become contenders themselves in the co-evolutionary arms race by becoming reproductive parasites of their hosts. To mediate successful outcomes in these …
Windows Into Changing Landscapes: Bioarchaeological And Geophysical Analysis Of The Grenada Yellow Fever Cemetery, M. Kathryn Mckenna
Windows Into Changing Landscapes: Bioarchaeological And Geophysical Analysis Of The Grenada Yellow Fever Cemetery, M. Kathryn Mckenna
Theses and Dissertations
This project focuses on the Yellow Fever Cemetery of Grenada, Mississippi through geophysical and biological methods. A ground penetrating radar survey was conducted to investigate the landscape and burial patterns in relation to the use of the cemetery throughout high periods of mortality such as a yellow fever epidemic. Additionally, biological methods were used in the analysis of an individual recovered as part of a salvage archaeology event from the cemetery. The multifaceted approach aims to uncover more about the cemetery, landscape, and community as it has changed over time with the influence of extreme events such as the yellow …
Chitosan-Based Biomaterials For Treatment Of Acute And Chronic Osteomyelitis, Luke Jackson Tucker
Chitosan-Based Biomaterials For Treatment Of Acute And Chronic Osteomyelitis, Luke Jackson Tucker
Theses and Dissertations
Osteomyelitis or infection of bone is painful and difficult to treat due to limited tissue penetration by antibiotics. A resulting chronic infection has around a 30% chance of never resolving and resulting in amputation of the limb. The current standard of care for osteomyelitis is debridement and systemic antibiotics for two to six months, which can cause systemic toxicity and increase the emergence of antibiotic-resistant bacteria. It is therefore necessary to develop a localized biodegradable treatment that can deliver high concentrations of antimicrobials while minimizing the risk of systemic side effects. The overall objective of this work was to develop, …
An Evaluation Of Avian Use Of Marsh Terraces In Gulf Coastal Wetlands Of Louisiana, Madelyn Belle Mcfarland
An Evaluation Of Avian Use Of Marsh Terraces In Gulf Coastal Wetlands Of Louisiana, Madelyn Belle Mcfarland
Theses and Dissertations
Louisiana’s coastal wetlands support millions of resident and migratory birds annually but account for 80% of the nation’s coastal wetland loss. Marsh terracing is a restoration technique that constructs segmented ridges in open water areas to enhance marsh conditions. Despite widespread use, their value as avian habitat has received limited study. Using ground and aerial surveys, we evaluated avian use of marsh terraces across 24 paired sites (marsh terrace and non-terrace sites) in coastal Louisiana. Avian surveys focused on breeding secretive marsh birds (SMB) and wintering waterfowl. Results indicate that presence or absence of marsh terraces influenced numbers of ducks …
Investigating The Effects Of Multiple Concussions On Neuropsychological Performance, Michaela S. Patoilo
Investigating The Effects Of Multiple Concussions On Neuropsychological Performance, Michaela S. Patoilo
Theses and Dissertations
It has been well-established in the literature that a history of concussion makes individuals more susceptible to sustaining subsequent concussions. However, there is little neuropsychological evidence of how sustaining multiple lifetime concussions affects cognitive functioning in the general adult population. It is known from previous traumatic brain injury and single concussion literature that impairments in cognitive performance across domains often follow the initial injury, and exploratory studies have shown that multiple concussions can have a measurable impact on cognition. However, existing research is often limited by its reliance on archival data and abbreviated neuropsychological batteries. Therefore, the current study aimed …
Predictions Of Thermo-Fluid Transport Over A Poultry Incubation Period Using High Performance Computing, Melvy Fernandes
Predictions Of Thermo-Fluid Transport Over A Poultry Incubation Period Using High Performance Computing, Melvy Fernandes
Theses and Dissertations
The quality of hatchery conditions significantly impacts the hatchling health. An insight into the spatiotemporal distribution of environmental factors like temperature, ventilation, humidity, and CO2 within an incubator can be the key to reduce the pathogen spread. The objective of this study is to develop an efficient computational fluid dynamics model to predict thermo-fluid and scalar transport over an incubation period using high performance computing systems. Various modeling approaches for grid generation, inflow conditions, fan and heater modeling, and scalar transport are evaluated to identify cost effective numerical models and allow long time simulations with reliable data. The model is …
Synthesis And Characterization Of Lithium Tris (2-(Dimethyl Amino)Phenyl)Tert-Butyl Gallate [Li(Me2nph)3gatbu] Complex For The Catalytic Hydroboration Of Benzophenone, Mohammad Raziul Hasan
Synthesis And Characterization Of Lithium Tris (2-(Dimethyl Amino)Phenyl)Tert-Butyl Gallate [Li(Me2nph)3gatbu] Complex For The Catalytic Hydroboration Of Benzophenone, Mohammad Raziul Hasan
Theses and Dissertations
The development of non-noble metal catalysts has become a prominent topic in the field of Organometallic Chemistry research. Aldehydes and ketones have been catalytically reduced through hydroboration employing unsupported bimetallic Li-M complexes, where M is a group 13 metal (Al, Ga or, In). Herein, we disclose our studies on the supported Li-M complex [Li{(tert-Bu)M(o-C6H4(NMe2))3}],where M=Ga, which catalyzes the hydroboration of benzophenone at room temperature using HBpin. A tris-chelate of Gallium complex [Ga(o-C6H4(NMe2))3] was synthesized as precursors to produce the Li-Ga complex [Li{(tert-Bu)Ga(o-C6H4(NMe2))3}] in excellent yield by reacting it with tert-Butyl lithium in diethyl ether [yield (93%)].The precursor and complexes were …
Buffering The Strained Relation Between Masculinity And Social Support With Self-Compassion, Nathan Barclay
Buffering The Strained Relation Between Masculinity And Social Support With Self-Compassion, Nathan Barclay
Theses and Dissertations
Men experience high rates of negative health outcomes and often have difficulty identifying and seeking support for their issues. Traditional masculine socialization has been identified as a potential determinant of this effect, as masculine ideals often conflict with prosocial help-seeking behaviors. Men who experience this sort of socialization need better support for their mental health and are less likely to seek it out in a professional setting. Therefore, other models of support, like social support, should be investigated. Additionally, factors that impact the way that men perceive social support should be explored, one of which may be self-compassion. The current …
Foodways And Socioeconomic Complexities In Early Iron Age Of Bara, Old Oyo, Nigeria (Ca. 490 B.C. To A.D. 40), Racheal Bolakale Oyundoyin
Foodways And Socioeconomic Complexities In Early Iron Age Of Bara, Old Oyo, Nigeria (Ca. 490 B.C. To A.D. 40), Racheal Bolakale Oyundoyin
Theses and Dissertations
The Early Iron Age period has been underexplored in the archaeology of West Africa, particularly Nigeria. Also, there is a lack of research and knowledge on organic residue analysis in Nigeria, particularly in the southwestern region of the country, despite the fact that other studies on archaeobotany and paleoenvironmental studies are well established. To address this gap, lipid analysis was conducted on 10 vessels from the Early Iron Age (490 B.C. to A.D. 40) site BSM6 in Bara, Old Oyo, Nigeria. The analysis revealed the plant and animal materials consumed by the Early Iron Age community. These findings provide vital …
Here I Am, Like I Am: Disability In Twentieth-Century Southern Literature, Rachel M. Bell
Here I Am, Like I Am: Disability In Twentieth-Century Southern Literature, Rachel M. Bell
Theses and Dissertations
The depiction of people with disabilities in American literature has varied considerably throughout the twentieth century. In the south in particular, disabled individuals have been portrayed as violent, licentious, and deceitful. This thesis examines three hallmarks of American southern literature—Harper Lee’s To Kill a Mockingbird, William Faulkner’s Sanctuary, and the short stories of Flannery O’Connor—to demonstrate the anxiety of that era surrounding disability, as well as how disability works in tandem with race and class. The fixation of these works on the sexual immorality of disabled men reflects the fascination with eugenics in the mid-twentieth century, as do their animalistic …
Distribution And Abundance Of Breeding Tidal Marsh Birds Across The Mississippi Gulf Coast, Rachel V. Anderson
Distribution And Abundance Of Breeding Tidal Marsh Birds Across The Mississippi Gulf Coast, Rachel V. Anderson
Theses and Dissertations
Tidal marsh and its bird community across the northern Gulf of Mexico are subject to numerous disturbances such as oil spills, hurricanes, habitat loss from land use change, and high relative sea level rise rates looming in the future. Baseline population data and landscape associations are greatly needed to assess the current distribution and the future impact of perturbations on marsh birds across the Mississippi Gulf Coast. Using a standardized sampling design and point count survey protocol, we determined the abundance and population size of Clapper Rails, Common/Purple Gallinules, Least Bitterns, Marsh Wrens, Seaside Sparrows, Red-winged Blackbirds, and Common Yellowthroats …
Polyaniline Analogs Polymers And Nanocomposites Coating For Corrosion Protection Applications, Raymond Femi Awoyemi
Polyaniline Analogs Polymers And Nanocomposites Coating For Corrosion Protection Applications, Raymond Femi Awoyemi
Theses and Dissertations
The economic impact of metallic corrosion on global infrastructure, spanning pipeline networks, bridges, refineries, and automobiles, is considerable. In 2013, it accounted for 3.4% of the global GDP, totaling US$ 2.5 trillion. Organic coatings have gained significance as a prominent strategy to address this widespread issue. Polyaniline (PANI), a conducting polymer, has long been recognized as an effective anti-corrosion coating. This study explores the potential of polyaniline analogs and their nanocomposites as candidates for protective organic coatings in corrosion control applications. Initially, the investigation focuses on conducting polymers with side chains comprising long, branched alkyl groups as potential corrosion suppression …
Longitudinal Influences Of Parental Relationships On Positive Adolescent Functioning, Rebekah Buckley Sparks
Longitudinal Influences Of Parental Relationships On Positive Adolescent Functioning, Rebekah Buckley Sparks
Theses and Dissertations
This dissertation examines the longitudinal influences of parental relationships – romantic, co-parenting, and parent-child – on positive adolescent functioning. Utilizing data from the Future of Families and Child Wellbeing Study, this study investigates how various dimensions of parental relationships impact adolescent well-being at age 15, as measured by the EPOCH scale. Grounded in Attachment Theory and the Life Course Perspective, this research highlights the interconnectedness of early parental interactions and their long-term effects on adolescents’ emotional and social development. Key findings indicate that supportive and stable parental relationships significantly enhance adolescents’ engagement, perseverance, optimism, connectedness, and happiness. The study emphasizes …
Corneal Epithelial Tissue Engineering Approaches To Treat Limbal Stem Cell Deficiency, Sasirekha K
Corneal Epithelial Tissue Engineering Approaches To Treat Limbal Stem Cell Deficiency, Sasirekha K
Theses and Dissertations
A clear healthy cornea is essential for visual acuity. As a self-renewing and regenerating tissue, the corneal epithelium has a stem cell pool, the limbus that acts as its proliferative reservoir. When limbal epithelial stem cells are destroyed or become dysfunctional, a pathological state known as limbal stem cell deficiency (LSCD) manifests. Damaged corneas have been successfully reconstructed by transplanting the cultured limbal epithelial stem cells. Limbal stem cell transplantation (LSCT) is one of the applicable and most challenging procedures in clinical ophthalmology for the reconstruction of the stratified ocular surface epithelium in patients with LSCD. Given the above challenge, …
An Examination Of The Factors That Affect The Recruitment And Retention Of African American Male Teachers In Public Schools, Brandon M. Moore
An Examination Of The Factors That Affect The Recruitment And Retention Of African American Male Teachers In Public Schools, Brandon M. Moore
Theses and Dissertations
The purpose of this qualitative explanatory case study is to explain the underrepresentation of African American male teachers in public school education in the state of Arkansas through the lens of the teacher diversity gap and organizational commitment. Participants included 10 African American male teachers who taught in grades K-12 in public schools. The primary source of data collection was completed through the use of semi structured interviews via Zoom. Findings indicated that school districts, educational agencies and the local government should collectively increase their efforts to successfully recruit African American males to the teaching profession. Specifically, the findings suggested …
The Effects Of Combining Β-Lactam Antibiotics And Mefloquine In Multi-Drug Resistant Pseudomonas Aeruginosa, Kayla C. Maas
The Effects Of Combining Β-Lactam Antibiotics And Mefloquine In Multi-Drug Resistant Pseudomonas Aeruginosa, Kayla C. Maas
Theses and Dissertations
Pseudomonas aeruginosa, a notorious opportunistic pathogen, is a leading cause of hospital-acquired infections. The newest generation of β-lactam antibiotics, the carbapenems, are often used to treat multi-drug resistant (MDR) P. aeruginosa infections. Treatment of P. aeruginosa has become increasingly difficult due to its remarkable ability to resist antibiotics through various intrinsic and acquired mechanisms. Physicians rely on a limited group of antibiotics to treat these infections, but many P. aeruginosa isolates are evolving to become resistant to all available antibiotics, including carbapenems. The multifaceted mechanisms underlying P. aeruginosa antibiotic resistance include β -lactamases, efflux pumps, altered membrane porins, and antibiotic …
Tribological Analysis Of Heat Treatments On Medical Grade Cobalt Chromium Molybdenum Alloys, Samuel Edis Bowden
Tribological Analysis Of Heat Treatments On Medical Grade Cobalt Chromium Molybdenum Alloys, Samuel Edis Bowden
Theses and Dissertations
Cobalt chromium molybdenum (CoCrMo) has many material properties that make it desirable as a medical hip implant. Due to the range of heat treatments available and the resulting material properties that are present in medical device manufacturing using CoCrMo, many implants are not able to withstand both the chemical and physical wear necessary as a hip replacement. This research looks to examine various heat treatments and their resulting properties to find a desirable heat treatment for CoCrMo in hip implant bearing surfaces. This study was accomplished by using five distinct variations of heat treatment on forged CoCrMo alloy that would …