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Articles 6631 - 6660 of 31065
Full-Text Articles in Entire DC Network
Impact Of Climate Oscillations/Indices On Hydrological Variables In The Mississippi River Valley Alluvial Aquifer., Meena Raju
Theses and Dissertations
The Mississippi River Valley Alluvial Aquifer (MRVAA) is one of the most productive agricultural regions in the United States. The main objectives of this research are to identify long term trends and change points in hydrological variables (streamflow and rainfall), to assess the relationship between hydrological variables, and to evaluate the influence of global climate indices on hydrological variables. Non-parametric tests, MMK and Pettitt’s tests were used to analyze trend and change points. PCC and Streamflow elasticity analysis were used to analyze the relationship between streamflow and rainfall and the sensitivity of streamflow to rainfall changes. PCC and MLR analysis …
Use Of Consumer Grade Small Unmanned Aerial Systems (Suas) For Mapping Storm Damage In Forested Environments, James Dewey Cox
Use Of Consumer Grade Small Unmanned Aerial Systems (Suas) For Mapping Storm Damage In Forested Environments, James Dewey Cox
Theses and Dissertations
Storm damages to forested environments pose significant challenges to landowners, land managers, and conservationists alike. Damage scope and scale assessments can be difficult, costly, and time consuming with conventional pedestrian survey techniques. Consumer grade sUAS technology offers an efficient, cost-effective way to accurately assess storm damage in small to moderate sized survey areas (less than 10 km²). Data were collected over a 0.195 km² area of damaged timber within the Kisatchie National Forest in Central Louisiana using a DJI Mavic 2 Pro drone. Collected imagery was processed into an orthomosaic using Agisoft Metashape Professional with a resulting ground sampling distance …
Physical Activity In Individuals With Down Syndrome: A Qualitative Examination Of The Perspectives Of Guardians And Health Professionals, Emma Schultz
Theses and Dissertations
Identifying factors that influence physical activity (PA) among individuals with Down syndrome (DS) is essential for PA promotion. Insight can be gained from guardians and health professionals. The purpose was to compare guardians and health professional perspectives on facilitators and barriers of PA in individuals with DS. Interviews were conducted with 11 guardians (5 mothers, 4 fathers, 2 legal guardians) and 11 professionals (4 PA specialists, 3 physical therapists, 4 occupational therapists). Grounded Theory was applied to data analysis. Barriers and facilitators fit the levels of the Ecological Model of Health Behavior: (a) Intrapersonal (perceived rewards); (b) Interpersonal (interaction); (c) …
Ultrastructure Of Cimex Lectularius L. (Hemiptera: Cimicidae) Salivary Glands After A Blood Meal Infected With Bartonella Henselae (Hyphomicrobiales: Bartonellaceae), Afsoon Sabet
Theses and Dissertations
Bed bugs (Hemiptera:Cimicidae) are a common, hematophagous ectoparasite of humans and other animals, and are experiencing an international resurgence. Cimicids have been implicated in the transmission many disease agents, including various Bartonella species, however disease transmission has not yet been confirmed. Bartonella spp. are transmitted by a variety of arthropods, including fleas, lice and sand flies, and it is speculated that bed bugs may also serve as a potential vector. In this study, we used an artificial membrane to feed two groups of adult Cimex lectularius rabbit blood, either infected or uninfected with Bartonella henselae. After two weeks, the …
Economic Aspects Of U.S. Catfish Farming: Technological Progress, Cost Of Regulations, And Economic Contribution, Shraddha Gurupad Hegde
Economic Aspects Of U.S. Catfish Farming: Technological Progress, Cost Of Regulations, And Economic Contribution, Shraddha Gurupad Hegde
Theses and Dissertations
This research provides a comprehensive picture of the economic status of the U.S. catfish industry through investigating several critical economic aspects such as technological progress, functional production relationships in intensive systems, regulatory costs, and economic contribution of the industry. The use of primary data is a unique aspect of this work reflecting the economic realities of catfish farms. Primary data collected through extensive in-person farm surveys covered over two-thirds of the catfish production areas in the U.S. The results of the study provided evidence of intensification in the U.S. catfish industry through increased adoption of two relatively new alternative production …
A Harmonic Radar System For Honey Bee Tracking To Better Understand Colony Collapse Disorder, William B. Woo
A Harmonic Radar System For Honey Bee Tracking To Better Understand Colony Collapse Disorder, William B. Woo
Theses and Dissertations
Honey bees are some of the most important pollinators for agriculture in the world and are pivotal to the health of worldwide ecosystems. Like all insects, bees struggle with exposure to parasites, diseases, and other environmental factors that can negatively affect the overall health of the colony. Recently, a new unexplainable phenomenon called Colony Collapse Disorder (CCD) has been wreaking havoc on bee populations worldwide. As a result, a system capable of tracking bees is required to understand the different contributions of chemicals, parasites, etc. to CCD. This research seeks to show data supporting the development of systems for an …
Supplier Performance Scorecard Utilization In The Medical Device Manufacturing Healthcare Supply Chain, Justin Cardisco
Supplier Performance Scorecard Utilization In The Medical Device Manufacturing Healthcare Supply Chain, Justin Cardisco
Theses and Dissertations
The medical device manufacturing industry has a deficiency in determining how to improve supplier performance for the components and systems they purchase. Many complex medical devices require components from superb suppliers. But how does a medical device manufacturer (MDM) impartially assess supplier performance to know which suppliers to continuing with (or even boost purchase volumes) and which suppliers they should exit? This study describes which supplier-specific metrics are most important to medical device manufacturers (MDMs) so they can utilize this supplier performance scorecard backed by real-world inputs. This research will focus on five categories to measure MDM supplier performance (Quality, …
Determining The Effectfs Of Introducing Pseudomonas Putida 3p To Black Soldier Fly (Hermetia Illucens) Gainesville Diet, Rebecca Waters
Determining The Effectfs Of Introducing Pseudomonas Putida 3p To Black Soldier Fly (Hermetia Illucens) Gainesville Diet, Rebecca Waters
Theses and Dissertations
With a growing global population, food security and waste management strategies are needed (FAO, 2002b); insects have been promoted for these goals. Black soldier fly larvae (BSFL) are endorsed for their ability in decomposition and use as feed (Bava et al., 2019; Swett Walker, 2018). Studies show the life cycle of BSFL is impacted by bacterial supplementation (Franks et al., 2021; Kooienga et al., 2020). We seek to determine the effects of supplementing BSFL diet with Pseudomonas putida 3P. We conducted two forms of a 10-day bench-top study observing larval mass, frass conversion, C:N content, and ammonia production with supplementation …
Borderline Personality Disorder And Suicide Risk: The Role Of Emotional Vulnerability, Parental Invalidation, And Adverse Childhood Experiences, Chandler Jayne Mcdaniel
Borderline Personality Disorder And Suicide Risk: The Role Of Emotional Vulnerability, Parental Invalidation, And Adverse Childhood Experiences, Chandler Jayne Mcdaniel
Theses and Dissertations
Childhood adversity is linked with a variety of negative outcomes including suicide attempts and personality disorders, most commonly Borderline Personality Disorder (BPD). A core feature of BPD, emotion dysregulation is often reported following early childhood adversity and contributes to both suicidal ideation and attempts. One explanation for the development of emotion dysregulation within BPD, is the biosocial model, which states that there must be an interaction between childhood emotional vulnerability and parental invalidation. Recent literature suggests that this interaction may not be necessary. Thus, the current study extended previous literature by examining childhood risk factors (i.e., ACES, parental invalidation, and …
Assessment Of Retention Trends In The College Of Agriculture And Life Sciences To Determine Possible Internal Recruitment Efforts For Poultry Science Departments And Enhance University Retention, Peyton Alyssa Taylor
Assessment Of Retention Trends In The College Of Agriculture And Life Sciences To Determine Possible Internal Recruitment Efforts For Poultry Science Departments And Enhance University Retention, Peyton Alyssa Taylor
Theses and Dissertations
With only six poultry degree granting universities, producing a slim number of graduates each year, poses a challenge for the industry. There may be potential areas for internal recruitment within Colleges of Agriculture and Life Sciences (CALS). In study 1, an evaluation of Mississippi State University’s CALS retention trends determined that Biochemistry (BCH) and Animal Science (AS) have the lowest retention rates. Study 2 compared all six poultry degree granting universities’ CALS retention rates, with AS continuously having one of the lowest retention rates. Lastly, Study 3 surveyed undergraduates, advisors, and faculty showing students having an interest in poultry while …
Transformer Fault Event Detection And Classification Using Pmus, Yadunandan Paudel
Transformer Fault Event Detection And Classification Using Pmus, Yadunandan Paudel
Theses and Dissertations
Transformer is one of the most reliable components in an electric power system, however its failure has huge opportunity costs for an electric utility. In this work, we detect transformer electrical faults promptly and accurately classify the fault types using voltage/current data from Phasor Measurement Units. Our work can also eliminate uncertainties which are inherent in traditional transformer fault diagnostic techniques like dissolved gas analysis. In this thesis, first, possible causes of transformer failures are discussed, and four common transformer electrical faults are identified. Second, a comprehensive simulation model for electrical faults is developed. Third, fast and efficient abrupt change …
Analysis And Characterization Of The Volatile Compounds Associated With The Wooden Breast Condition, Hunter Hessler
Analysis And Characterization Of The Volatile Compounds Associated With The Wooden Breast Condition, Hunter Hessler
Theses and Dissertations
In 2013, the wooden breast defect in broiler breast meat was characterized by hardened and pale areas at both the caudal and cranial regions of the breast. The objective of this study was to determine the flavor differences between severe woody and normal breast meat in both breast and patties using gas chromatography-mass spectrometry, gas chromatography-olfactometry, and sensory descriptive analysis. Forty-eight individual volatile flavor compounds were identified in both the ground and whole breast chicken samples including aldehydes, ketones, and other functional groups. Minimal differences existed in the volatile fraction of normal and severe woody breast meat. In contrast, woody …
Optimized Selenium Status, Gut Microbiota, And Type 2 Diabetes, Ying-Chen Huang
Optimized Selenium Status, Gut Microbiota, And Type 2 Diabetes, Ying-Chen Huang
Theses and Dissertations
We have previously demonstrated that long-term dietary Se deficiency in old Terc-/- mice with humanized telomeres induces type-2 diabetes and exacerbates age-dependent increases in the abundance of A. muciniphila and Lachnospiraceae, which are related to obesity and metabolic syndromes. The objectives of this dissertation are: 1) to determine the minimum intake of Se required for type 2 diabetes prevention in middle-aged mice; 2) to evaluate the efficacy of A. muciniphila and R. torques (a Lachnospiraceae family member) to intervene dietary Se deficiency-induced type 2 diabetes and the underlying mechanisms; 3) to assess sex differences in the responses to …
Evaluation Of Non-Labeled Herbicides In Cotton Production In Mississippi, Zaim Ugljic
Evaluation Of Non-Labeled Herbicides In Cotton Production In Mississippi, Zaim Ugljic
Theses and Dissertations
Weed resistance has decreased the number of herbicides that provide effective weed control in cotton. Studies were conducted to determine weed control efficacy and crop safety in cotton with herbicides not currently labeled for use in the crop. Herbicides were applied at two different timings near Starkville and Brooksville, MS. Cotton injury following application of ametryn, bentazon, florpyrauxifen-benzyl, topramezone and tolpyralate at the 3-5 or the 8-10 node growth stage ranged from 24 to 43% and 15 to 51%, respectively, up to 56 days after application. Except for bentazon, applying non-labeled herbicides to cotton at the 3-5 or 8-10 node …
Comparison Of Abdominal Computed Tomography To Ultrasound In The Diagnosis Of Canine Biliary Disease Manifesting As Acute Abdominal Signs, Shanna Christine Marroquin
Comparison Of Abdominal Computed Tomography To Ultrasound In The Diagnosis Of Canine Biliary Disease Manifesting As Acute Abdominal Signs, Shanna Christine Marroquin
Theses and Dissertations
Biliary diseases are uncommon, potentially fatal causes of acute abdomen in dogs. Little information is present comparing the performance of computed tomography (CT) to ultrasound in identifying canine biliary pathology. Thirty-five client-owned dogs presenting for acute abdomen signs received an abdominal ultrasound and contrast-enhanced abdominal CT. Two authors reviewed the randomized, anonymized CT and ultrasound studies. Twenty-eight dogs had biliary pathology and seven dogs serving as controls had no evidence of biliary disease. The final diagnoses of patients with biliary pathology included cholelithiasis, gallbladder mucoceles, cholangiohepatitis/cholangitis, extrahepatic biliary obstruction, gallbladder wall edema, gallbladder wall mass, and cystic mucosal hyperplasia. Computed …
Consumer Attitudes And Perceptions Towards The Use Of Reclaimed Wood, Mia Craig
Consumer Attitudes And Perceptions Towards The Use Of Reclaimed Wood, Mia Craig
Theses and Dissertations
Reclaimed wood is material salvaged from old, abandoned buildings that offers sustainable living to communities. There have been previous studies on reclaimed wood, but a limited amount linking reclaimed wood to consumerism. In August 2021, an online survey was conducted to gauge consumers’ knowledge of the industry and attitudes on reclaimed wood practices. Consumers are U.S. citizens 18 years of age or older. Study results indicate that respondents have little knowledge regarding reclaimed wood. Of the 1,516 respondents, 44% seem knowledgeable of reclaimed wood. Most respondents are not aware that reclaimed wood is a separate industry. Respondents believe there should …
Exploring The Impact Of End-User Engagement On The Diffusion And Adoption Of A Climate Resilience Tool In The Gulf Of Mexico, Renee C. Collini
Exploring The Impact Of End-User Engagement On The Diffusion And Adoption Of A Climate Resilience Tool In The Gulf Of Mexico, Renee C. Collini
Theses and Dissertations
Climate change-related hazards negatively impact ecosystems, economies, and quality of life. Significant resources have been invested in data collection and research with the goal of enhanced understanding and capacity to predict future conditions in order to mitigate or adapt to intensifying hazard risk. The expansive production of climate science has generated a necessary complimentary enterprise dedicated to enhancing decision-makers’ understanding of and access to climate science as it is essential for future societal and ecological well-being. Though the aim of these many tools is to support resilient decision-making in the face of climate change, professionals report an underutilization of climate …
Evaluating Cover Crops To Determine The Best Management Practice For The Suppression Of Tall Waterhemp And Italian Ryegrass, Samuel R. Reeves
Evaluating Cover Crops To Determine The Best Management Practice For The Suppression Of Tall Waterhemp And Italian Ryegrass, Samuel R. Reeves
Theses and Dissertations
To combat herbicide resistance among weeds, non-herbicide methods of control, such as cover crops, are becoming widely adapted. Experiments were conducted to determine how to effectively establish and manage cover crops in order to suppress tall waterhemp and Italian ryegrass and to assess their overall impact on soybean growth and yield. Various cover crop establishment methods were evaluated, and it was determined that interseeding at the R7 growth stage of soybean was the least effective method for proper cover crop establishment. Biomass data demonstrated that interseeding created the least amountof cover crop biomass, with no differences found among the other …
Health-Related Caretaking In An Institutionalized Setting: Applying The Index Of Care To Burial 1 From The Mid-19th To Early-20th Century Mississippi State Asylum, Jackson, Ms., Darcie Badon
Theses and Dissertations
This project employs a modified version of the Bioarchaeology of Care (BoC) in an analysis of Burial 1 from the Mississippi State Asylum, Jackson, MS. Burial 1 is a skeletal individual recovered from the historic MSA cemetery. Notably, Burial 1 exhibits recidivistic cranial trauma in the form of cranial depression fractures (CDFs) and significant entheseal changes in the upper extremities. However, because there is no identifying information associated with Burial 1, interpretations of the caretaking they may have received, both prior to and after institutionalization, include short- and long-term outcomes from their community and the MSA. Additionally, Burial 1’s CDFs …
Quantifying The Economic Impact Of Conservation Policy Changes Utilizing Precision Agriculture Tools, Kyle Stanley Watkins
Quantifying The Economic Impact Of Conservation Policy Changes Utilizing Precision Agriculture Tools, Kyle Stanley Watkins
Theses and Dissertations
The United States Farm Bill is a multi-billion-dollar federal legislation reenacted every five years to provide funding towards crop protection, nutrition, environmental protection, and other important focuses. The largest conservation program within the Farm Bill is the Conservation Reserve Program, which encompasses many conservation practices such as CP-33: habitat buffers for upland birds. Conservation implementation through the Farm Bill relies on voluntary producer enrollment in exchange for a rental fee to not farm enrolled land for a set time. I used yield data collected across six years from 36 agricultural fields in Humphreys and Holmes counties, Mississippi, USA, and a …
A Comparative Study On The Functionality Of Porcine Dura As A Tissue-Engineered Dura Mater Graft For Clinical Applications, Ashma Sharma
A Comparative Study On The Functionality Of Porcine Dura As A Tissue-Engineered Dura Mater Graft For Clinical Applications, Ashma Sharma
Theses and Dissertations
Damage to dura mater may occur during intracranial or spinal surgeries, which can result in cerebrospinal fluid leakage as well as other potentially fatal physiological changes. As a result, biological scaffolds derived from xenogeneic materials are typically used to repair and regenerate dura mater post intracranial or spinal surgeries. In this study we explore the mechanics, structure, and immunological capacity of xenogeneic dura mater to be considered as a replacement for human dura. A comparative analysis is done between native porcine dura and a commercially available bovine collagen-based dura graft. Native porcine dura mater was decellularized and subjected to mechanical …
Evaluating The Role Of Area, Isolation, And Human Behavior On Meso-Mammals In A Small Statistical Demographic Area, Brittney Palode
Evaluating The Role Of Area, Isolation, And Human Behavior On Meso-Mammals In A Small Statistical Demographic Area, Brittney Palode
Theses and Dissertations
Urbanization offers unique challenges for wildlife. The urban landscape is fragmented and changes available resources for wildlife. Human-dominated landscapes can provide food, shelter, or cover through human-subsidized resources. However, to thrive in human-dominated landscapes, wildlife must adapt or disperse, otherwise they will die. In this study, I investigated how the urban landscape and human behavior influence urban wildlife occurrence. I established 35 camera sites during April 2020. I surveyed residential property dwellers around each camera site to determine what behavior they performed that could increase species occurrence. Gray fox and coyote site use decreased with increased isolation while no species …
Secondary Teacher Perceptions On Lesson Planning And Delivery, Jonathan Watson
Secondary Teacher Perceptions On Lesson Planning And Delivery, Jonathan Watson
Theses and Dissertations
On March 17, 2020, Governor Asa Hutchinson closed all public schools in the state of Arkansas to on-site instruction through March 30 in an effort to contain the spread of the novel Coronavirus. With schools closed, teachers and students made the pivot to online learning. School closures changed the way teachers prepared and delivered lessons. Changes in instruction varied from school building to school building, district to district, and teacher to teacher based on location, available equipment, and individual teacher technological skill sets. This scoping review examines the perceptions of teachers on the effectiveness of lesson planning and content delivery …
Early College High Schools And Community College Partnerships: Perceptions Of Community College Administrators In Mississippi, Zachary W. Moulds
Early College High Schools And Community College Partnerships: Perceptions Of Community College Administrators In Mississippi, Zachary W. Moulds
Theses and Dissertations
The purpose of this qualitative study was to examine the perceptions of community college administrators in Mississippi regarding the early college high schools located on their campuses. While the ECHS model has become prominent in several states, Mississippi’s efforts to implement the model have yet to be fully examined. Six administrators from three community colleges with ECHS located on their campuses were individually interviewed and asked to share their perceptions of the ECHS model. The participants were asked a series of 12 questions composed by the researcher. The results of the study indicated that each of the administrators overwhelmingly view …
The Dark Side Of Artificial Intelligence: Understanding The Role Of Perceived Algorithm Unfairness On Ride-Hailing Driver Discontinuance, Zhenya Tang
Theses and Dissertations
Ride-hailing platforms (RHP) are sharing economy platforms that connect passengers who need to order a private ride or to share a vehicle with drivers who want to share a ride. However, after rapid growth, major RHPs (e.g., Uber, Lyft, and Didi) have begun to face severe driver shortages. Attracting and maintaining a large driver base is critical to the survival and success of any RHP no matter its size. While practitioners are urging to seek suggestions from academia to prevent driver loss, limited research attention has been paid to RHP drivers’ discontinuance. To fill this gap, this dissertation aims to …
The Effect Of Two Rate Change Approaches On Speech Movement Patterns, Noelle Marie Lewis
The Effect Of Two Rate Change Approaches On Speech Movement Patterns, Noelle Marie Lewis
Theses and Dissertations
The current study examined the effect of different rate change approaches on speech movement patterns, including increasing and decreasing speaking rate volitionally, as well as with delayed auditory feedback (DAF). There were 10 participants, five male and five female, with a mean age of 25 years. All were typical speakers. Participants spoke the sentence “Don’t fight or pout over a toy car” under slow, fast and DAF speaking conditions. A total of 5 sensors were glued to each participant’s tongue, teeth, and lips. NDI Wave electromagnetic articulography recorded the articulatory movements from these sensors as the participants spoke. Metrics for …
Extended School Closure: The Perspectives From A Rural School Community, Ha Nguyen
Extended School Closure: The Perspectives From A Rural School Community, Ha Nguyen
Theses and Dissertations
The COVID-19 pandemic caused severe disruption to students worldwide, especially younger ones. This instrumental case study investigated how elementary students in a rural United States southeastern community experienced the sudden, extended closure of their school building facilities triggered by this health emergency. Multiple stakeholder perspectives were gathered through semi-structured interviews with the elementary school principal, three classroom teachers, three elementary-aged students, and three student family members, along with classroom observations as well as corresponding documents and artifacts. Interview commentaries and weekly reflective commentary journal entries were employed to address data validation and reliability issues. The findings demonstrate how the rural …
Metabolic Profiling Of Firefighter Plasma Using 1h Nmr Platform Following Curcumin, Ketone Supplementations And Carbohydrate Restricted Diet Benefits For Oxidative Stress Suppression, Richard Eugene Baird
Metabolic Profiling Of Firefighter Plasma Using 1h Nmr Platform Following Curcumin, Ketone Supplementations And Carbohydrate Restricted Diet Benefits For Oxidative Stress Suppression, Richard Eugene Baird
Theses and Dissertations
Occupational health surveys reported that first responders such as firefighters (FF) have some of the highest levels of cardiovascular disease in the nation from poor eating habits and lack of exercise. Three studies were established with goals to identify oxidative stress (OS) biomarkers and improve cardiovascular health for FF including: 1) a 28-day-carbohydrate restricted diet (CRD), 2) a heat-house search and clear protocol in personal protection equipment (PPE) plus curcumin supplementation, and 3) a treadmill exercise protocol in PPE with ketone salt supplementation. During those studies, stored blood plasma subsamples were evaluated for targeted antioxidants or untargeted metabolite concentration fluctuations …
A Preliminary Investigation Of Neuroantibody Levels, Prevalence, And Environmental Factors In Patients With Neurological Dysfunction, Jihan Azar
Theses and Dissertations
Nervous system damage comprises a large proportion of diseases worldwide. It is also the most difficult to diagnose. Biomarkers for nervous system damage are needed in order to diagnose these diseases early enough to allow for intervention. In this study, we recruited patients from two Egyptian hospitals with MCI, ET and NMS and health references. Serum autoantibody levels against neural proteins and heavy metals were analyzed and compared. Immunoglobulin G (IgG) antibodies against neurofilament H (NFH), Glial Fibrillary Acidic Protein (GFAP), Myelin Basic Protein (MBP) and alpha synuclein (a-SYN) and Immunoglobulin M (IgM) antibody against neurofilament light (NFL) were among …
Concurrent Credit Career And Technical Education: A Case Study Of A Public Charter High School And Two-Year Community College Investment In Human And Social Capital To Better Prepare An Emerging Workforce, Zachery Ethan Harber
Theses and Dissertations
The purpose of this study was to better understand the extent to which a Public Charter High School and a Two-Year Community College leveraged their partnership and committed resources towards expanding access to concurrent credit career and technical education programs. The goal of this partnership was to invest in the human capital of high school students to better prepare them for high-demand occupations within their local economy. The researcher examined how institutional agents from the Public Charter High School and Two-Year Community College leveraged their respective social capital to develop a financially sustainable and academically efficient model of delivering concurrent …