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Articles 2221 - 2250 of 14984
Full-Text Articles in Entire DC Network
Autonomic Responses During Animated Avatar Video Modeling Instruction Of Social Emotional Learning To Students With Adhd: A Mixed Methods Study, Jesse D. Rhodes
Autonomic Responses During Animated Avatar Video Modeling Instruction Of Social Emotional Learning To Students With Adhd: A Mixed Methods Study, Jesse D. Rhodes
Theses and Dissertations
For those with attention deficit hyperactivity disorder (ADHD), social interactions involving high levels of face-to-face interaction can raise stress levels and emotional dysregulation. Using animated avatar video models may mitigate potential emotional dysregulation while learning social skills in these populations. This study examined autonomic data of adolescents aged 7-13 diagnosed with attention deficit hyperactivity disorder (ADHD), n=5 during avatar animated video modeling (AAVM) of social and emotional skills. This was a replication study with the addition of biofeedback data collection and a change of population. Participants were given three Nearpod training modules with AAVM and multiple-choice quizzes on self-awareness, social …
"This Whole Journey Was Sacred": Latter-Day Saint Parents' Process In Coming To Accept A Transgender Child, Julia Campbell Bernards
"This Whole Journey Was Sacred": Latter-Day Saint Parents' Process In Coming To Accept A Transgender Child, Julia Campbell Bernards
Theses and Dissertations
This grounded theory methodology (GTM) study examines the process of members of the Church of Jesus Christ of Latter-day Saints in coming to accept a transgender or gender diverse (TGD) child. Data comes from interviews with 38 Latter-day Saint parents of TGD children and 130 Facebook posts from the same population. Data was analyzed using GTM in coding and theory construction. A model of Latter-day Saint parents' process in accepting a TGD child and the factors that impact that process is presented. The results indicate that coming to accept a TGD child tends to engage Latter-day Saint parents cognitively, emotionally, …
Does Predation Environment Affect Repeated Responses To Predation Cuesâ In The Fishâ Brachyrhaphis Rhabdophora?, Madeleine S. Nate
Does Predation Environment Affect Repeated Responses To Predation Cuesâ In The Fishâ Brachyrhaphis Rhabdophora?, Madeleine S. Nate
Theses and Dissertations
Individual organisms face trade-offs when dealing with predation—more time spent avoiding predators often results in less time allocated to energy acquisition and reproductive-related activities. Individuals that optimize this trade-off and respond appropriately to current risk levels in their environment should be at an advantage. What is less clear is whether this tradeoff changes when individuals are repeatedly exposed to a predation threat. There may be advantages to responding consistently to every signal of threat, but it might also be advantageous to modulate individual behavior. Moreover, it is unclear how evolutionary history of a population might affect such individual responses. Our …
Teaching Social-Emotional Learning To Children With Autism Using Animated Avatar Video Modeling, Emelie Davis
Teaching Social-Emotional Learning To Children With Autism Using Animated Avatar Video Modeling, Emelie Davis
Theses and Dissertations
People with a diagnosis of autism spectrum disorder (ASD) often have difficulties understanding or applying skills related to Social-Emotional Learning (SEL). An individual having a better understanding of SEL concepts is generally associated with more fulfilling connections with others and increased satisfaction in life. Since people with ASD tend to have greater success with learning in structured environments, we created a module to teach these skills using Nearpod. These modules were created with videos of a person embodying a cartoon dog face using Animoji for two reasons; because the animation was meant to appeal to children, and the creation was …
The Effect Of Climate Change On Firm Level Costs With Focus On Mena Region, Farah Osama Saieed
The Effect Of Climate Change On Firm Level Costs With Focus On Mena Region, Farah Osama Saieed
Theses and Dissertations
This paper has a main objective of identifying the relationship between environmental factors and climate change on operating costs incurred by firms. This paper also attempts to compare the direction and intensity of the effect on different sectors in order to analyze whether climate change effect differs based on the nature of the business operations. Several papers have previously addressed the relationship between climate change factors ad profits. This literature will add to previous studies by observing the effect on the cost rather than the profits. In addition to providing results that minimize endogeneity, which is found in a large …
Quantifying Shape Variation In An Antisymmetrical Trait In Xenophallus Umbratilis, Mary-Elise Johnson Nielsen
Quantifying Shape Variation In An Antisymmetrical Trait In Xenophallus Umbratilis, Mary-Elise Johnson Nielsen
Theses and Dissertations
Antisymmetry is a striking, yet puzzling form of biological asymmetry. The livebearing fish Xenophallus umbratilis exhibits antisymmetry in the male intromittent organ and provides a system that is well-suited for studying the nature of variation in antisymmetrical traits. Using geometric morphometrics, I test the hypothesis that because the gonopodium is critical to fitness there will not be significant differences in gonopodium shape between the two gonopodial morphs in this species. My results are consistent with this prediction, though I found that gonopodium shape did differ with gonopodium size.
Identity Work To Teach Mathematics For Social Justice, Navy B. Dixon
Identity Work To Teach Mathematics For Social Justice, Navy B. Dixon
Theses and Dissertations
In this thesis, mathematics educators are conceptualized as individuals with multiple, simultaneous figured worlds that inform their decisions while planning. The study explores how two mathematics educators negotiated and orchestrated their figured worlds to plan two mathematics lessons for social justice. The results highlight how numerous the figured worlds each participant surfaced through background interviews. Some of the figured worlds were elicited by the interview questions (i.e., Race, Family, Social Justice Teaching) but other figured worlds organically surfaced through the interviews (i.e., Sexuality, Community, Activism, Critical Information Consumption). A discursive analysis of a selection of these figured worlds revealed conceptualizations …
"This Is The Way": Gender Representation In Disney's The Mandalorian, Brooke Solorio
"This Is The Way": Gender Representation In Disney's The Mandalorian, Brooke Solorio
Theses and Dissertations
When Disney released The Mandalorian, it quickly became the top show on its highly popular streaming platform. As with all media wielding this level of exposure, it is important to closely examine its content for depictions of peoples including females. In accordance with Sandra Bem's gender schema theory, the implicit messaging in this series can influence the formation of people's mental shortcuts about what it means to be female. This study employs content analysis to illuminate the portrayal of physical and non-physical attributes of the women present in the two seasons existing at the time of this study. Results reveal …
An Augmented Reality Maintenance Assistant With Real-Time Quality Inspection On Handheld Mobile Devices, James Thomas Frandsen
An Augmented Reality Maintenance Assistant With Real-Time Quality Inspection On Handheld Mobile Devices, James Thomas Frandsen
Theses and Dissertations
With the advances of industry 4.0, augmented reality (AR) devices are being deployed across the manufacturing sector to enhance worker perception and efficiency. AR is often used to deliver spatially relevant work instructions on mobile devices for maintenance procedures on the factory floor. In these situations, workers use their mobile devices to view instructions in the form of 3D animations and annotations that directly overlay the equipment being maintained. Workers then follow the AR instructions and must ultimately rely on their own judgement and knowledge of the procedure as they progress from step to step. An AR assistant that could …
Development Of A Crosslinked Osteochondral Xenograft And A Collagen Stabilizing Intra-Articular Injection To Remediate Cartilage Focal Lesions To Prevent Osteoarthritis, Mark Lewis Mosher
Development Of A Crosslinked Osteochondral Xenograft And A Collagen Stabilizing Intra-Articular Injection To Remediate Cartilage Focal Lesions To Prevent Osteoarthritis, Mark Lewis Mosher
Theses and Dissertations
Osteoarthritis is one of the most common causes of disability in adults in America. It is a progressive and degenerative disease where the articular cartilage is broken down and lost from the surfaces of bones causing chronic pain and swelling in the joints, and currently has no cure. The most commonly osteoarthritis starts from a focal lesion on the cartilage surface, which will expand on the surface and downwards through the thickness of the tissue. The current gold standard for correcting cartilage focal lesions is the osteochondral autograft/allograft transplantation (OAT), which replaces the defect with a fresh osteochondral graft. The …
Vegetation And Nutritional Changes Over 20 Years Of White-Tailed Deer Exclusion, Gabrielle Nicole Ripa
Vegetation And Nutritional Changes Over 20 Years Of White-Tailed Deer Exclusion, Gabrielle Nicole Ripa
Theses and Dissertations
Knowledge of the impacts of white-tailed deer (Odocoileus virginianus; hereafter deer) as dominant herbivores throughout the Southeastern United States of America is lacking. To address this, three paired experimental units of exclosures and controls were constructed in 2000 on three Wildlife Management Areas across Mississippi within the ecoregions of the Upper Coastal Plain, Lower Coastal Plain, and the Mississippi Alluvial Valley. Vegetation was sampled in the summers of 2000, 2005, and 2021 including vegetation structure, canopy coverage, basal area, and species composition. Additionally, in 2005 and 2021, biomass was sampled to determine potential impacts on nutritional carrying capacity. Among the …
Effects Of Microcystin-Lr On Channel Catfish (Ictalurus Punctatus) Susceptibility To Microbial Pathogens (Aeromonas Hydrophila And Edwardsiella Piscicida), Alison Marchant
Theses and Dissertations
Microcystin-LR is a hepatotoxin produced by cyanobacteria. Aeromonas hydrophila and Edwardsiella piscicida infections are leading causes of losses in market-sized channel catfish (Ictalurus punctatus). These older fish should have natural immunity in place and a predisposing factor is likely a prerequisite for these disease outbreaks. While microcystin-LR rarely causes mortality in warm-water aquaculture, we believe it may be a predisposing factor that leads to bacterial disease outbreaks during the summer months due to its ability to damage the liver. Our study investigated microcystin-LR’s effects on channel catfish susceptibility to these pathogens. We found that a sublethal dose of microcystin-LR induced …
Molecular And Phenotypic Characterization Of Escherichia Coli Isolated From Broiler Chicken Flocks In Mississippi, Priyanka Devkota
Molecular And Phenotypic Characterization Of Escherichia Coli Isolated From Broiler Chicken Flocks In Mississippi, Priyanka Devkota
Theses and Dissertations
Avian pathogenic Escherichia coli (APEC) is the causative agent of colibacillosis. APEC causes significant economic losses to the poultry industry. In this study, 66 E. coli isolates were collected from broiler flocks across Mississippi and categorized as clinical and non-clinical isolates. Genotypic and phenotypic characterization of virulence factors and antimicrobial resistance profiles of these E. coli were examined. The data disclosed a higher prevalence of virulence genes in clinical isolates than in non-clinical isolates. High differences on the genotypic and phenotypic antimicrobial resistance among clinical and non-clinical isolates were observed. Whole genome sequences of avian E. coli elaborated a diverse …
White Savior Projects: An Examination Of The Antitrafficking Social Movement, Jennifer A. Cheek
White Savior Projects: An Examination Of The Antitrafficking Social Movement, Jennifer A. Cheek
Theses and Dissertations
For this dissertation, I conduct an ethnography of three antitrafficking programs; interview 38 activists and survivors of trafficking; and analyze organizational texts, websites, and social media. I examine the history of the antitrafficking movement. Among the three organizations, activists provide housing; food, clothing, and hygiene items; medical services; mental health services and counseling; mentorship; education for survivors; a 24-hour hotline; outreach; case management and referrals; training for law enforcement; a drop-in center; and education and awareness events. I examine activists’ diagnostic, prognostic, and motivational framing of sex trafficking, and other framing tactics, such as frame alignment, frame diffusion, frame resonance, …
Losing Longleaf: Forestry And Conservation In The Southern Coastal Plain, Fraser Livingston
Losing Longleaf: Forestry And Conservation In The Southern Coastal Plain, Fraser Livingston
Theses and Dissertations
From the end of Reconstruction to the beginning of World War II, no other ecological change affected as great a part of the southern landscape as the loss of the longleaf pine from the southeastern coastal plain. This dissertation examines the causes and consequences of the species’ disappearance. In the span of just decades, lumber operations and naval stores producers descended upon longleaf pine woodlands with a voracious appetite that greatly contributed to the demise of the pine. However, as this dissertation argues, exploitation by the hands of the timber and turpentine industries was not the only agent that transformed …
Agile Enterprise Simulation – A Framework For Organizational Decision-Making Analysis, John P. Wilson
Agile Enterprise Simulation – A Framework For Organizational Decision-Making Analysis, John P. Wilson
Theses and Dissertations
Decision-making by one or more individuals to select a course of action is predicated on the values and preferences to identify, choose options, and finally select the option that is evaluated to be the “best option.” Decision theory provides the means to model and analyze both the processes and options available to the decision-makers. This dissertation assembled in three phases: 1) An effort to collect and review existing literature relating to the concept of expanding decision analysis options to provide a model of decision-making made with time-dependent factors along with uncertainty and risk. Further, adding the concept of a decision …
Testing Competing Theories To Develop A Linguistic Assessment On Online Extremist Content, Matthew Dean
Testing Competing Theories To Develop A Linguistic Assessment On Online Extremist Content, Matthew Dean
Theses and Dissertations
The development of threat assessment protocols has largely neglected a theoretical
foundation, leading to a multitude of protocols with little shared in the way of scientific
foundation. The focus of this study is to test components of two theories – Sternberg’s (2018) FLOTSAM Model and Maynard and Benesch’s (2016) Integrated Model of Dangerous Speech (IMDS) – as potential criteria to use in assessing the seriousness of online threats. This study utilized a dataset of 500 open-source online communications linked to the extremist QAnon movement. An EFA was used to pull an empirical model from the data. Three CFA and SEM …
Mitigating The Shrink-Swell Capacities Of The Yazoo Clay Through Application Of Lime And Biochar, Austin Alan Brister
Mitigating The Shrink-Swell Capacities Of The Yazoo Clay Through Application Of Lime And Biochar, Austin Alan Brister
Theses and Dissertations
Shrinking and swelling in Yazoo Clay is a cause of concern for construction projects in Mississippi. This thesis investigated the effects of adding lime and Douglas Fir biochar on the shrinking and swelling capabilities of Yazoo Clay. Samples of Yazoo Clay were mixed with the additives in defined ratios and subjected to the free swell test and the COLE(rod) test. Biochar addition reduced the COLE(rod) of the samples a large amount, while increasing the swelling potential of the clay samples. The addition of lime slightly reduced both the shrinking and swelling potentials of the samples. The mineralogical variability of Yazoo …
Evaluation Of Novel Litter Amendments For Use In The Commercial Broiler Industry, Jorge A. Urrutia
Evaluation Of Novel Litter Amendments For Use In The Commercial Broiler Industry, Jorge A. Urrutia
Theses and Dissertations
Poultry litter amendments (LA) are commonly used to maintain good litter quality; the most common ones; are acidifiers. However, concern over the lifespan of LA acidifiers (d) and corrosive nature revealed a need for alternative LA. Products of interest include biochar (BC), superabsorbent polymers (SAPs), and alum mud (AM). Experiment 1 was a screening study (n=17 treatments, no birds) conducted to determine the optimal application rate/method of BC, SAPs, and AM vs.commercial LA and a control. Most SAPs treatments measured metrics may be similar (i.e., bacteria, water activity) or better (pH) vs. commercial LA (PLT). High inclusions of novel LA …
Non-Traditional Adjuvants And Methods For Applying Root-Promoting Compounds In Commercial Cutting Propagation, Anthony Turner Bowden
Non-Traditional Adjuvants And Methods For Applying Root-Promoting Compounds In Commercial Cutting Propagation, Anthony Turner Bowden
Theses and Dissertations
The nursery/greenhouse industry is innovative. There have been several reports in the popular literature of non-traditional adjuvants used in plant propagation; however, these claims have never been evaluated in a scientific setting. Five studies, conducted at the South Mississippi Branch Experiment Station in Poplarville in 2019 and 2021 determined the impact that adding honey to water-soluble auxin solutions and surfactants to foliar applied auxin solutions on physiological responses associated with adventitious root formation. Treatments in studies presented in chapters two and three included three honey sources (multiflora, local, and Manuka). Honey-infused water-soluble auxin solutions affected plant species but not in …
Alteration Of The Viral Immune Response In The Lung Of Juvenile Rats By Cannabidiol, Kylee J. Burroughs
Alteration Of The Viral Immune Response In The Lung Of Juvenile Rats By Cannabidiol, Kylee J. Burroughs
Theses and Dissertations
Cannabidiol (CBD) has unverified use in the treatment of ADHD but parents are giving CBD to their children to treat hyperactivity and restlessness. CBD has suppressive effects on immune function therapeutically but the effect of pre-exposure to CBD on the response to an immune challenge is unknown. To investigate this, male and female juvenile rats were treated orally with either corn oil or 20 mg/kg or 60 mg/kg CBD daily for 5 days followed 24 hours later by intranasal challenge with a viral mimic, Resiquimod (R848). After 6 hours, lungs were collected for the analysis of gene expression of select …
Assessment Of Simulated And Real-World Autonomy Performance With Small-Scale Unmanned Ground Vehicles, William Peyton Johnson
Assessment Of Simulated And Real-World Autonomy Performance With Small-Scale Unmanned Ground Vehicles, William Peyton Johnson
Theses and Dissertations
Off-road autonomy is a challenging topic that requires robust systems to both understand and navigate complex environments. While on-road autonomy has seen a major expansion in recent years in the consumer space, off-road systems are mostly relegated to niche applications. However, these applications can provide safety and navigation to dangerous areas that are the most suited for autonomy tasks. Traversability analysis is at the core of many of the algorithms employed in these topics. In this thesis, a Clearpath Robotics Jackal vehicle is equipped with a 3D Ouster laser scanner to define and traverse off-road environments. The Mississippi State University …
Evaluation For Using Expended Bioelectrochemical Systems As Soil Amendments For Improved Corn Plant Growth And A Drought Resistant Soil., Jackson Lee Sauers
Evaluation For Using Expended Bioelectrochemical Systems As Soil Amendments For Improved Corn Plant Growth And A Drought Resistant Soil., Jackson Lee Sauers
Theses and Dissertations
A long-held practice is to mix agricultural soil with a soil amendment to improve growing conditions in crops. A common soil amendment is biosolids produced from both municipal and dairy wastewater due to the macro- and micronutrients within it. Both the agricultural and wastewater industries are participating in the Circular Economy concept (CEC). Two experiments explored using expended bioelectrochemical systems (BES) that treated either synthetic dairy wastewater (DWW) or synthetic municipal wastewater (SWW) as soil amendments to improve corn plant growth when treated with three different nutrient treatments: 100%- 50%- and 0% Hoagland Nutrient Solutions. Biochar and used terracotta clay …
Assessing The Legacy Of Erosion And Flood Control Management Efforts On The Fish Assemblages And Physical Conditions Of Yazoo Basin Bluff Hill Streams, Nicky M. Faucheux
Assessing The Legacy Of Erosion And Flood Control Management Efforts On The Fish Assemblages And Physical Conditions Of Yazoo Basin Bluff Hill Streams, Nicky M. Faucheux
Theses and Dissertations
The hills of Yazoo Basin have a long history of land use modification and subsequent erosion and flood control issues. In response, federal actions were taken to address these issues beginning after the Mississippi River flood of 1927. Four major flood control reservoirs were built in 1932-1957, and instream low-drop grade control structures (GCS) were installed beginning in the 1980s. The objective of my dissertation was to ascertain the long-term effects of these efforts on stream fish assemblages and channel morphology. To assess whether the reservoirs affected upstream fish assemblages as barriers to recolonization by fluvial fishes or as source …
Oxidized Fibrin Alginate Microbeads To Treat Vascular Calcification, Brittany Nichole Macha
Oxidized Fibrin Alginate Microbeads To Treat Vascular Calcification, Brittany Nichole Macha
Theses and Dissertations
Calcification is linked to a high prevalence of cardiovascular events and mortality due to arterial stiffness. Stiffening of the arteries in the case of medial calcification is due to hydroxyapatite mineral deposited in the artery thus leading to the loss of elastin. A possibility of removing this rogue mineral along the vessel walls could be the use of osteoclasts. Osteoclasts, a type of osteocyte, have the unique ability to absorb bone in the bone turnover process. It is proposed that in the future, osteoclasts be delivered to the site of mineralization through oxidized alginate-fibrin microbeads. Alginate hydrogels have proven great …
Ex Vivo Biomechanical Comparison Of Four Center Of Rotation Angulation Based Leveling Osteotomy Fixation Methods, Melody E. Whitney
Ex Vivo Biomechanical Comparison Of Four Center Of Rotation Angulation Based Leveling Osteotomy Fixation Methods, Melody E. Whitney
Theses and Dissertations
Thirty-two canine tibiae with patellae and patellar tendons were harvested from 17 skeletally mature cadavers. Each tibia was randomly allocated to a construct group: plate and pin (Plate), plate with countersink compression screw (HCS), plate with tension band (TB), or plate with HCS and TB (HCSTB). Samples were loaded by distraction until failure. The stiffness, yield load, and ultimate load were compared between each fixation method. No difference in stiffness of the constructs was detected between groups. Yield load and ultimate load for the HCSTB group was greater than the TB group, the HCS group, and the Plate group. CBLO …
Evaluation Of Warm Season Vegetables Using Sustainable Production Practices, Jacob Arthur
Evaluation Of Warm Season Vegetables Using Sustainable Production Practices, Jacob Arthur
Theses and Dissertations
Sustainable practices were evaluated for the production of two warm season vegetable crops, tomato and chile peppers. The first study investigated the plant vegetative growth, fruit production timing, yield components and fruit quality of three hybrid and three heirloom tomato cultivars grown in a high tunnel using grafted and non-grafted plants. Grafting the selected tomato cultivars with the two rootstock types did not alter total marketable yield of any cultivar, but affected overall stem diameter, fruit color, and β-carotene concentrations of tested tomato cultivars. The second study evaluated the plant growth, yield, and fruit quality of nine heirloom chile pepper …
The Use Of 87sr/86sr Isotopic Ratios To Assess Natal Areas And Movement Of Juvenile Gulf Sturgeon Acipenser Oxyrinchus Desotoi In The Pascagoula And Pearl River Systems, Joshua Neary
Theses and Dissertations
The effects of water and dietary influence, and time duration for discernment, of pectoral fin spine 87Sr/86Sr were evaluated in Atlantic Sturgeon Acipenser oxyrinchus oxyrinchus. Fish were subjected to 87Sr-enriched water (0.1 mg/L) or diet (0.25 migrogram/g or 0.5 microgram/g) for 1, 2, 3, 6, or 12 weeks. Fish were also held at 15 or 25°C to determine if temperature influenced 87Sr/86Sr. Results found fin spine 87Sr/86Sr changed in water after 1 week and diet after 12 weeks suggesting water is the primary influence. In wild Gulf Sturgeon A. o. …
Development Of A Novel Loop-Mediated Isothermal Amplification (Lamp) Assay For The Rapid Detection Of Clostridium Perfringens, Deepa Chaudhary
Development Of A Novel Loop-Mediated Isothermal Amplification (Lamp) Assay For The Rapid Detection Of Clostridium Perfringens, Deepa Chaudhary
Theses and Dissertations
Clostridium perfringens (C. perfringens) causes diseases such as necrotic enteritis in poultry. Current methods for early detection of C. perfringens, including culture, and molecular techniques (PCR and qPCR), have logistical limitations in detecting pathogens on-site because they require specialized equipment and long sample preparation time. This study describes developing a highly sensitive on-site LAMP assay combined with a simple DNA extraction method to detect C. perfringens. Results showed that the LAMP assay was highly specific and sensitive with the optimal reaction conditions: 63°C for 30 mins with primer concentration of 1.2 mM FIP/BIP and 0.2 mM F3/B3. The HotSHOT method …
An Inventory And Analysis Of Human Remains From The Aklis Site (12vam1-42) Curated At Mississippi State University, Kaelyn Olson
An Inventory And Analysis Of Human Remains From The Aklis Site (12vam1-42) Curated At Mississippi State University, Kaelyn Olson
Theses and Dissertations
This project was an inventory and analysis of human remains from the Aklis archaeological site (12VAm1-42), located in the Sandy Point National Wildlife Refuge, St. Croix, U.S. Virgin Islands. The human remains inventoried during this project were collected by the U.S. Fish and Wildlife Service and MSU during surface collection and emergency salvage excavations at Aklis. The statistical analysis of the data focused on the minimum number of individuals (MNI) per square meter, the degree of long bone completion, skeletal element counts across excavated features, and the degree of weathering. Results indicate that the assemblage curated at MSU includes a …